API Development is an effective way for software to communicate and interact with each other over the internet. It’s a great way for developers to expand the capabilities of a program or systems by creating interfaces and allow data to be shared between different types of technology. With an API, existing systems can connect and more advanced solutions can be made. Hiring an API Developer can enable businesses to streamline processes and enable a much faster integration of existing software solutions.

API Developers are skilled engineers specialized in creating new APIs and maintaining existing ones. They are responsible for developing and troubleshooting current APIs, designing APIs from standards-based web services, maintaining inventory and implementing authorization mechanisms. Additionally, they incorporate different technologies together to create advanced software solutions that integrate cloud systems like Amazon Web Services or MongoDB and APIs with point-and-click platforms, like WordPress or HubSpot.

Here’s some projects that our expert API Developer made real:

  • Creating advanced databases on different cloud systems
  • Linking between two cameras from a microscope
  • Interfacing with customizing Wordpress themes, Woocommerce themes and SMS services
  • Building secure back end systems to analyze different public APIs
  • Applying sophisticated authorization mechanisms
  • Creating comprehensive ecommerce websites using MERN Stack
  • Developing node APIs for exchange markets using Node.js, Web3.js, Ether.js
  • Automatically out of stocking items from supplier’s stock through an API system.

It is no surprise that good API Development is the cornerstone of many successful software solutions. Our expert API Developers are well experienced in developing suitable solutions for projects ranging from app development to SaaS applications, game development to enterprise system integrations. WithFreelancer.com, businesses can easily hire one of these skilled professionals to build their own bespoke projects that are perfectly tailored for their needs. So why not post your own project on Freelancer today and hire an expert API Developer?

A partir das avaliações de 85,878, os clientes avaliam nosso API Developers 4.9 de 5 estrelas.
Contratar API Developers

API Development is an effective way for software to communicate and interact with each other over the internet. It’s a great way for developers to expand the capabilities of a program or systems by creating interfaces and allow data to be shared between different types of technology. With an API, existing systems can connect and more advanced solutions can be made. Hiring an API Developer can enable businesses to streamline processes and enable a much faster integration of existing software solutions.

API Developers are skilled engineers specialized in creating new APIs and maintaining existing ones. They are responsible for developing and troubleshooting current APIs, designing APIs from standards-based web services, maintaining inventory and implementing authorization mechanisms. Additionally, they incorporate different technologies together to create advanced software solutions that integrate cloud systems like Amazon Web Services or MongoDB and APIs with point-and-click platforms, like WordPress or HubSpot.

Here’s some projects that our expert API Developer made real:

  • Creating advanced databases on different cloud systems
  • Linking between two cameras from a microscope
  • Interfacing with customizing Wordpress themes, Woocommerce themes and SMS services
  • Building secure back end systems to analyze different public APIs
  • Applying sophisticated authorization mechanisms
  • Creating comprehensive ecommerce websites using MERN Stack
  • Developing node APIs for exchange markets using Node.js, Web3.js, Ether.js
  • Automatically out of stocking items from supplier’s stock through an API system.

It is no surprise that good API Development is the cornerstone of many successful software solutions. Our expert API Developers are well experienced in developing suitable solutions for projects ranging from app development to SaaS applications, game development to enterprise system integrations. WithFreelancer.com, businesses can easily hire one of these skilled professionals to build their own bespoke projects that are perfectly tailored for their needs. So why not post your own project on Freelancer today and hire an expert API Developer?

A partir das avaliações de 85,878, os clientes avaliam nosso API Developers 4.9 de 5 estrelas.
Contratar API Developers

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    286 trabalhos encontrados

    Quero lançar uma pequena rede social voltada exclusivamente para lazer. O objetivo inicial é bem enxuto: disponibilizar um espaço onde os usuários possam trocar mensagens diretas em tempo real, de forma simples e intuitiva, tanto no desktop quanto no mobile. Escopo que preciso neste primeiro momento: • Tela de cadastro/login com autenticação básica (e-mail ou telefone). • Lista de contatos adicionados e busca simples de usuários. • Janela de chat bilateral com histórico armazenado em banco de dados. • Notificações de novas mensagens (push ou web). • Painel administrativo mínimo para moderação e métricas essenciais. Tecnologias ficam a seu critério, cont...

    $510 Average bid
    $510 Média
    66 ofertas

    I need a reliable solution that can pull data from LinkedIn and insert it straight into a database I specify. The core requirement is the automated transfer—once the tool finishes scraping, every captured field should already be sitting in the database ready for queries and reporting, no manual copy-paste. You’ll advise me on the best approach to authenticate, respect rate limits, and minimise the risk of blocks while still collecting the typical profile-level details (name, headline, company, location, experience, education, skills and anything else you can legally obtain). I will confirm the final field list before you begin. Key objectives • Build or configure a scraper / API wrapper that logs in, navigates to each target profile and captures the agreed-upon fields ...

    $11 / hr Average bid
    $11 / hr Média
    15 ofertas

    I need A 1V1 Calling dating app. I purchase a Flutter App UI from codecanyon. The Work is Create Admin Panel UI Make It functional Create API Connect With App Create Database Modifi App UI According I need Demo Admin Panel ( I need Like This ) Admin panel : Account:admin   Password:123abc Phone number:+447873398220 Demo App ( I need Like This ) 1) 2) payment milestone:- Admin Panel UI - 10% App UI - 10% Create API - 20% Create Database - 10% Admin panel Using Node JS - 30% Make Flutter App functional And Connect Admin panel And API - 10% All Testing Done And Ready to production - 10% Satisfaction:- 1. Admin Panel UI - Make According Demo And Submit Freelancer 2. App UI - Make According Demo And Submit Freelancer 3. Create API - All Api Perfect Work Submit Freelencer 4. Cr...

    $1106 Average bid
    $1106 Média
    55 ofertas

    I am building a full-scale algorithmic trading platform and need an experienced developer to take it from concept to production. The core of the system will execute three distinct strategies—scalping, day trading, and swing trading—running side-by-side from a single codebase. The app must pull real-time market data and place live orders across all major asset classes, so please factor in direct integration with: • Stock market APIs • Cryptocurrency exchanges • Forex market feeds Key expectations • Low-latency data capture with WebSocket or equivalent streaming. • Strategy engine that can be toggled per asset, with configurable parameters and risk limits. • Unified order-routing layer capable of handling spot, margin, and conditiona...

    $193 Average bid
    $193 Média
    12 ofertas

    I’m ready to turn my idea into a fully-functional Android application and need a developer who can guide the process from concept to Google Play release. At this stage I have the core concept and a handful of rough sketches; what I need now is help refining the user flow, designing an intuitive interface, building the backend logic, and packaging everything into a clean, well-tested APK. You’ll be working exclusively for the Android platform, so familiarity with current SDK versions, Kotlin or Java, Android Studio, and the play-store submission process is essential. If you can also advise on best-practice architecture (MVVM, Clean Architecture, Jetpack components) and integrate common services such as Firebase or in-app billing, that’s a plus. Please let me know: ...

    $11 / hr Average bid
    $11 / hr Média
    12 ofertas

    We need a mobile app similar to OLX (not exactly the same). Features required: User registration with Aadhar verification One-time platform fee for posting ads Categories & subcategories with listing system In-app chat and call feature Admin panel & secure payment integration Please share your tech stack, timeline, budget, and similar work experience.

    $382 Average bid
    $382 Média
    61 ofertas

    Our mobile app is already live on a staging domain, built with React Native, Node.js (Express) and MongoDB. I now need a full-stack developer who can dedicate the next seven days to finish three key items and move everything to our official domain. 1) Community auto-membership Every new registrant should be placed into the correct in-app community automatically when their professional email domain matches one that we map in the database. No manual steps—just detect, assign and save. 2) OTP email verification Before the first login the user must confirm ownership of that professional address. Generate a one-time six-digit code, send it via email, and allow a single attempt window with proper resend limits and expiry logic. 3) Production deployment The existing backend and adm...

    $115 Average bid
    $115 Média
    51 ofertas

    I have a fully-functional ERP written in core PHP with a MySQL backend. The next milestone is an Inventory Management module dedicated exclusively to stock tracking. No supplier or order features are needed at this stage. What I need built • Database changes to record products, stock movements (in, out, adjustments) and current on-hand quantities. • Clean, responsive PHP screens that blend with the existing UI for item setup, stock transactions and a real-time stock level dashboard. • Basic search, filter and export to CSV so staff can pull quick counts. • Low-stock thresholds with email alerts (SMTP already configured in the system). • Clear install/merge instructions and brief user documentation. Acceptance The module must install without breaking e...

    $112 Average bid
    $112 Média
    41 ofertas

    We are looking for an experienced AI/Backend Engineer (or small team) to help design and implement a foundational setup for an enterprise “Agentic AI” goal is to enable a prompt-based interface where business users can ask questions and trigger actions across internal risk management and document systems through a governed API layer. This is NOT a chatbot UI project focuses on backend architecture, AI orchestration, and secure enterprise integration. Target application includes IBM OpenPages SaaS (GRC) accessed via REST APIs. The first phase will implement a proof-of-concept that allows an AI agent to retrieve and update structured records using approved APIs via a secure middleware service. Scope of Work (Phase-1: Foundational Setup) Build a secure middleware API servic...

    $104 Average bid
    $104 Média
    12 ofertas

    The developer should build a cross-platform AI-powered IT Help Desk agent and management system that supports Windows, Linux, and macOS. The system must include a backend API (preferably in Python FastAPI or Node.js) to handle ticket management, device registration, and command distribution, along with a secure database (PostgreSQL) and an optional vector database for AI knowledge retrieval. The agent itself should be written in a compiled language like Go for cross-platform deployment, capable of registering devices, reporting system info and heartbeat, detecting missing patches, restarting services, and executing safe commands remotely. The AI component should analyze incoming IT tickets, automatically suggest fixes, and optionally execute auto-remediation commands when safe. All communi...

    $504 Average bid
    $504 Média
    115 ofertas
    Deploy Server-Side Python Script
    6 dias left
    Verificado

    • Description We have a small Python script which needs to be put on the server-side as an API. Excluding the GUI code and comments, the script has about 750 lines. You will be given a VPS, which the API will allow downstream applications to call the engine for data comparison. We need multiple real-time endpoints for downstream applications. For testing purposes, we will set the maximum to 3 for now. Ultimately, it can be scaled to an unlimited number of real-time comparisons. I suppose we will have multiple copies of the comparison code on the same/different servers, but with three REST API endpoints. Hence, the Python script will be split into server and client-side code. As there are multiple data points to be compared with, we are thinking that the web app will first initiate...

    $178 Average bid
    $178 Média
    85 ofertas

    I need a series of scenarios that connect ShipHero’s API with several online storefronts. The focus is on three core workflows: • Order processing – every new or updated order placed in the storefront must appear in ShipHero in near real-time. • Inventory management – stock level changes inside ShipHero should automatically update the corresponding product in each store. • Shipping updates – when ShipHero produces a label or tracking event, that information has to flow back to the customer’s order in the store. I already have the official ShipHero API documentation and can give you the credentials right away. Each storefront (think Shopify, WooCommerce, Magento, and others we decide on) will need its own well-named, modular scenario so I ...

    $139 Average bid
    $139 Média
    100 ofertas

    Project Overview We are looking for a developer to build and integrate a professional AI chatbot for our platform, Proxima Study. The goal is to allow students to ask questions on the front-end and receive answers generated by leading AI models (ChatGPT and Gemini) through a secure back-end bridge. Scope of Work Chat Interface (Front-end): A clean, user-friendly chat bubble/window on our website where students can type questions. It must support "streaming" (where text appears word-by-word) so users aren't waiting on a loading screen. The Bridge (Back-end): Develop a secure middleman (API) that takes the student’s question, sends it to OpenAI or Google Gemini, and brings the answer back to the website. AI Logic: Set up the system so I can easily toggle which AI mode...

    $131 Average bid
    $131 Média
    131 ofertas

    Automated Real Estate Systems Development Overview Ongoing work I am a part-time realtor focusing on investment properties, and I want to streamline my workflow with an automated system. This system will help investors by publishing daily cash-flowing deals on my Facebook and WhatsApp groups, aiming to facilitate engagement and lead generation. Read more Scope of work - Automated data sourcing from MLS or other property data sources. - Develop a cash flow analysis and ROI calculation system. - Filter properties meeting positive cash flow criteria. - Automatically format and publish daily posts to Facebook and WhatsApp groups. - Integrate a CRM system to capture inbound leads. - Provide documentation for system management. Read more References - Provide similar projects you have completed....

    $117 Average bid
    $117 Média
    66 ofertas

    This project will create an end-to-end, AI-powered email delivery system for a U.S. client. All work must be carried out on-site or remotely from New York State; residency is a strict requirement because of data-handling policies. Scope of work The core task is to design, train, and deploy a regression-based machine-learning model that predicts optimal email-send parameters from rich transactional data. I will supply secure access to the historical transaction logs; you will architect the data pipeline, engineer the relevant features, and iterate on model performance until it is production-ready. Once validated, the model should be wrapped in an API and integrated into our existing email infrastructure so it can trigger personalized sends automatically. Key responsibilities • Da...

    $33 / hr Average bid
    $33 / hr Média
    136 ofertas

    I am looking for a tutor who can help me understand, in a comprehensive and step-by-step manner, how to deploy a production-ready dashboard that displays the results of a model. My current stack includes: Google Cloud Platform (GCP) Vertex AI Workbench (where I trained the model) Streamlit (for the dashboard) Git and GitHub (for version control) I already have: A trained model in Workbench The .py files developed A structured and synchronized GitHub repository The intention to deploy everything in GCP However, I am not only looking for help with deployment — I want to fully understand the technical process behind it, including: How to properly structure the project for production. How to connect the trained model to the dashboard. The best architecture choice in GCP for...

    $22 / hr Average bid
    $22 / hr Média
    43 ofertas

    My current workflow already relies on , but I’m hitting limits with its out-of-the-box functionality. The project centers on true custom feature development—expanding so it fits my exact use-case rather than forcing my process to adapt to the platform. The work starts with a quick review of the existing setup, followed by a short requirements session where we pin down what the new feature must do, how it should be accessed, and any guardrails around performance or security. From there, the task moves into design, coding, and rigorous testing inside a staging environment to be sure everything runs smoothly once promoted to production. Deliverables • Complete source code and configuration for the new feature • Clear deployment notes and end-user documentation ...

    $19 / hr Average bid
    $19 / hr Média
    70 ofertas
    PowerPoint AI Slide Creator -- 2
    6 dias left
    Verificado

    I’m looking for a developer who can build an AI-driven agent that lives inside PowerPoint and automatically generates complete slides for me. The agent’s core task is to take user-provided input—whether that’s a written outline, speaker notes, or raw data—and turn it into fully formatted slides that include both the text blocks and the appropriate visuals (images, icons, charts, or infographics) without any extra manual work on my end. Here’s what I expect: • A seamless workflow inside PowerPoint (add-in, script, or VBA macro—whichever delivers the best user experience) • Dynamic generation of slide titles, body text, and visual assets based solely on the content the user supplies • Smart layout decisions so the finished deck ...

    $7 Average bid
    $7 Média
    12 ofertas
    Retell AI - Zenbooker API Bridge
    6 dias left
    Verificado

    What we’re building: A backend “bridge” that lets Retell AI automatically book, reschedule, and cancel appointments in Zenbooker. Must-have outcomes: When a caller tells Retell AI to book, reschedule, or cancel, the integration must: 1. Create / update / cancel the correct appointment in Zenbooker 2. Trigger Zenbooker’s built-in confirmation email automatically 3. Handle reschedules + cancellations cleanly (no broken states, no double-booking) Business rules (optional, recommend what makes sense): - Technician assignment - Blackout windows (days/hours we don’t book) - Lead-time rules (example: no same-day bookings after 3pm) - Service-area limits (by zip code or radius) Please flag which rules you recommend and why. Tech preferences - Use any stack you p...

    $166 Average bid
    $166 Média
    100 ofertas

    I’m creating a Swift-based Sudoku app whose primary mission is to teach people how to crack puzzles rather than simply letting them play. I already have the general UI vision; what I need now is a developer who can write the underlying Sudoku engine and weave in an engaging learning layer. Core objectives • Generate valid Sudoku boards on demand, analyse the current grid in real time and expose every classic solving technique (singles, pairs, X-Wing, etc.) through a clean API. • Provide instructional modes—contextual hints & tips —triggered by the user’s choice or by their mistakes. • Cover the whole spectrum of difficulty: beginner, easy, intermediate, tough and devious. Internally I’d like five granular levels, so please make the lo...

    $558 Average bid
    $558 Média
    152 ofertas

    Sto cercando uno sviluppatore che mi aiuti a trasformare i wireframe di OSSY in un MVP funzionante, pronto per essere testato sul mercato Obiettivo OSSY è una web app / mobile app che mette in contatto famiglie e lavoratori domestici (OSS, badanti, colf) senza occuparsi di contratti o assunzioni. Mi occorrono le funzioni essenziali per lanciare il servizio e validarne l’interesse. Funzionalità chiave • Registrazione utenti tramite SMS, con verifica in due passaggi. • Creazione profilo lavoratore con: esperienza lavorativa, certificazioni, disponibilità e categoria (OSS, colf h24, badante). Possibilità di mostrare il badge “OSS certificata”. • Upload foto e scelta della categoria durante l’onboarding. • Per ...

    $2393 Average bid
    $2393 Média
    113 ofertas
    Parcel Delivery App Development
    6 dias left
    Verificado

    I’m ready to build a dedicated parcel-only delivery service and need a full mobile solution that runs smoothly on both iOS and Android. Core functionality must include: • Real-time driver and package tracking so users can watch their parcel move on the map • Push and in-app delivery notifications at each status change • Instant chat between customer, driver, and support to resolve issues on the spot A clean customer app, a driver app with route optimisation, and a simple web-based admin panel for order management will round out the system. Code should be written with future scalability in mind (React Native or Flutter are both fine) and integrate with standard mapping and push-notification services. Please outline your preferred tech stack, an estimated time...

    $586 Average bid
    $586 Média
    241 ofertas

    Plaid + Chase Connectivity Issue via API Plaid + Chase OAuth Integration — "Invalid Credentials" After Successful OAuth Flow The Problem: We have a production Plaid integration (Node.js/Express) that connects bank accounts via Plaid Link. American Express and Capital One connect and sync perfectly. Chase fails every time with "Username or password incorrect" AFTER the OAuth flow completes successfully. The Flow: 1. User clicks Connect Bank → Plaid Link opens 2. User selects Chase → Plaid fires OPEN_OAUTH event 3. User redirects to Chase's website and logs in successfully 4. Chase redirects back to our app with oauth_state_id 5. Plaid Link re-opens with receivedRedirectUri 6. Plaid shows "Username or password incorrect" — connectio...

    $35 / hr Average bid
    $35 / hr Média
    201 ofertas

    We're looking for a hands-on fractional CTO to lead the technical direction of Layerline (), a global 3D printing marketplace. Layerline is the immediate focus, but on the backend we're also building our own custom e-commerce platform — and the role will expand to this and other ventures within our portfolio over time. This is someone who can code, architect, and implement — not just advise. Freelancers only — no agencies. Flexible, ongoing engagement with potential to grow into a full-term role and long-term technical partnership. --- ABOUT US • Multiple ventures — ecosystem infrastructure (B2B SaaS), e-commerce (3D printing marketplace), technology solutions, startup ecosystem coordination • Layerline () is the immediate focus — selling ...

    $20 / hr Average bid
    $20 / hr Média
    118 ofertas

    I’m refreshing my GitHub profile for upcoming university applications and I need a concise, well-architected Django backend that illustrates how I approach data modelling, API design and clean code. Tech stack is fixed: Python 3.x with Django (latest LTS). Because this is a portfolio piece, clarity, documentation and sensible project structure matter more than production-grade scaling or DevOps extras. Scope of the system The app should let authenticated users track items in and out of stock and generate simple reports. I expect models for items, categories and basic stock movements, JWT or session-based authentication, and a small reporting module summarising current inventory levels and movement history. Deliverables • Django project and apps organised with reusable, ...

    $28 Average bid
    $28 Média
    18 ofertas
    Online Vehicle Marketplace
    6 dias left
    Verificado

    I want to build a marketplace website similar to TrucksNL where dealers and individuals can list vehicles for sale. The platform will include trucks, trailers, commercial vehicles, equipment, parts, and cars. The project name is MenonTrucks. This is a multi-vendor listing marketplace where sellers can create accounts, post listings, and buyers can search and contact sellers. The platform should be designed to scale to approximately 150,000 listings. The website must be modern, fast, SEO-friendly, mobile-first, and scalable. CORE FEATURES (MVP) Marketplace Structure Categories and subcategories: Trucks Trailers Vans / Commercial Vehicles Cars Equipment Parts & Accessories Location-based browsing Category pages with filters SEO-friendly URL...

    $2789 Average bid
    $2789 Média
    186 ofertas

    Annuncio: Cercasi Igneniere informatico Freelance Stiamo cercando un libero professionista esperto per la realizzazione di un nuovo progetto software. La posizione è 100% da remoto. Il Progetto: Focus sulla Realizzazione A differenza di molti incarichi freelance nebulosi, entri in un contesto estremamente organizzato. Documentazione pronta: Le specifiche tecniche, l'architettura e la documentazione progettuale sono già state completate. Design pronto: (Se applicabile) I mockup e le linee guida di design sono già definiti. Il tuo compito: Non dovrai preoccuparti dell'analisi funzionale o di "inventare" i requisiti. Il tuo focus sarà esclusivamente sulla scrittura di codice di qualità e sulla realizzazione tecnica di quanto gi&agr...

    $8281 Average bid
    $8281 Média
    36 ofertas

    I have a legacy app in Java Struts and need help with supporting and maintaining it. Its done with legacy JS for front end and used Java Struts + Hibernate connecting to mysql and elastic search for the backend.

    $11 / hr Average bid
    $11 / hr Média
    54 ofertas

    Summary: Development of a scalable web MVP for users to automate quote generation via voice input. The system must be designed from the outset to allow for rapid scaling to a large number of users (SaaS architecture). The development of a scalable web MVP for users to automate quote generation via voice input. The system must be built from the beginning to allow for rapid scaling to a large number of users. Experience in OpenAI API, PDF generation, and multi-language SaaS web applications is essential. Core Function (MVP Phase 1), Workflow 1. User records the quote or uploads an audio file. 2. Speech-to-text (OpenAI or alternative). 3. LLM converts text into structured JSON. 4. JSON is loaded into an editable quote form. 5. User can manually correct or add items. 6. Automatic ca...

    $567 Average bid
    $567 Média
    152 ofertas
    Fix SAP ECC User Connector
    6 dias left
    Verificado

    I have an existing SAP ECC connector focused on user management that needs a thorough tune-up. Right now, role and permission data are not syncing reliably, especially when we pass information to and from our Active Directory and a custom internal system. Here’s what I need: • Review the current connector logic that touches SAP ECC’s user tables and authorization objects. • Identify and correct any mapping or API call issues so user roles and permissions flow accurately both ways. • Extend or adjust the connector so it can read from—and write back to—Active Directory as well as our internal system without breaking existing FI, MM, or SD data pathways. • Document configuration steps and provide a brief hand-over guide so my in-house tea...

    $147 Average bid
    $147 Média
    27 ofertas

    I want a full-featured social networking app built exclusively for Android. The core experience must allow users to create and edit profiles, exchange real-time messages, and browse an engaging content feed. Each of these three functions—profile creation, messaging, and feed consumption—has equal priority for the first release. You will handle everything needed to get a production-ready APK into Google Play: clean, well-documented Android code (Kotlin or Java), integration with a lightweight yet scalable backend of your choice, and a simple but modern UI that follows current Material Design guidelines. Authentication may start with email/password; social sign-in can follow in a later milestone. At hand-off I need: • Compilable source code with clear build instructions ...

    $3 / hr Average bid
    $3 / hr Média
    17 ofertas

    I need an experienced product team to turn my concept for a fintech escrow-account platform that suits GCC into a functioning minimum viable product. The application must run smoothly on both Web and Mobile, sharing a single back-end so users can switch devices without losing continuity. At its heart the system will let parties deposit funds into a protected escrow account, track every transaction in real time, and release the money automatically (or manually with dual confirmation) once predefined conditions are met. Security and regulatory compliance are critical, so please bring proven experience with encrypted data storage, KYC/AML workflows, role-based authentication and audit-ready logging. Tech stack is flexible as long as it supports rapid iteration, clean APIs and straightfo...

    $306 Average bid
    $306 Média
    118 ofertas

    Overview We are looking for a Senior Data Engineer to join the team that owns our core data product, the platforms and infrastructure that support it, and the data services consumed by our customers. You will work closely with other engineers, product stakeholders, and customers to design, build, and operate production-grade data systems, focusing on reliable ingestion, transformation, and exposure of data through APIs and product integrations. As a senior member of the team, you will be expected to help set technical standards, improve data quality and operational reliability, and contribute to shared ownership of systems from design through to reliable operation in production environments. What you’ll do • Design, build, and maintain data ingestion pipelines • Develop and...

    $19 / hr Average bid
    $19 / hr Média
    58 ofertas

    Multi-Vendor Online Marketplace Platform (OSClass) This project is a web-based multi-vendor marketplace system that connects multiple sellers with buyers, manages transactions, and facilitates manual payouts with a 10% commission model. IT is CRITICAL that you ask as many questions as you can - that interface assures me you know what is expected!

    $203 Average bid
    $203 Média
    83 ofertas
    Laravel LMS + SIDH Integration
    6 dias left
    Verificado

    I have purchased LMS code from codecanon that needs to be lived / deployed on godaddy also API to be connected with SIDH portal of government. refer to attached documents for API setup. pls. confirm if you can do this asap.

    $104 Average bid
    $104 Média
    49 ofertas

    The PHP Laravel Ludo tournament website needs to be customized, details of which are given below. 1. I have 2-3 phones, all with the same Game ID login. When I play a game on one phone and upload a screenshot after the game is finished, when I try to join a new game/bet from another phone, or sometimes from the same phone, it displays "You are already in a game," even though no game is currently in progress. This prevents me from joining another game immediately, and users face significant inconvenience. 2. The game should have the option to allow players to place 2-3 bets simultaneously. For example, let's say I log in and set three separate bets of ₹100, ₹200, and ₹500. Now, if another player bets any of these amounts, they can match me on the same bet and start the gam...

    $16 Average bid
    $16 Média
    26 ofertas

    I need a bespoke WooCommerce payment gateway that lets shoppers pay with any standard credit or debit card and have the amount credited instantly to an on-site crypto wallet. Each customer will see a running balance and a full transaction history inside their account dashboard. Core build • Gateway visible at checkout, labelled clearly for card payments that top-up the wallet before completing the order. • Wallet type: crypto-based. You are free to recommend the best open-source or third-party API for key generation, secure storage, and blockchain interaction. • Features required inside the wallet: real-time balance tracking and searchable transaction history. • Admin settings to enable/disable the gateway, set minimum/maximum top-up amounts, and view aggregate...

    $17 - $138
    Secreto
    $17 - $138
    11 ofertas

    Ich benötige eine schlanke, aber erweiterbare Integration zwischen Shopify und Microsoft Dynamics 365 Business Central. Hauptaufgabe ist es, Produkt- und Bestelldaten in Echtzeit über die Business Central API auszutauschen, ohne zusätzliche Zwischenplattform. Kernanforderungen • Echtzeit-Synchronisation:  – Produkte (Artikelstammdaten, Preise, Bestände)  – Bestellungen inkl. Status-Updates • Technologie: Nutzung der Business Central REST-API als zentrales Gateway; auf Shopify-Seite gern native REST-Endpunkte oder GraphQL, solange die Lösung konsistent bleibt. • Modularer Aufbau, sodass künftige Erweiterungen (z. B. Kundendaten) mit minimalem Aufwand eingebunden werden können. • Sauberes Fehler-Handlin...

    $2524 Average bid
    $2524 Média
    61 ofertas

    I’m building a mobile application that lets field executives—loaders, helpers, delivery riders and other gig workers—locate nearby jobs simply by entering their pincode. The same app will handle a ₹100 monthly subscription, display each company’s salary plus incentive structure, and refresh a personal dashboard so users see their earning potential day-to-day. I need the complete solution for both Android and iOS. Core modules include: • Pincode-based job search that pulls openings from our partner companies in real time • In-app subscription flow (₹100/month) with secure payments and automatic renewal handling • Salary & incentive dashboard that visualises confirmed shifts, projected payouts and daily totals AI will sit at the centre of the ...

    $4042 Average bid
    $4042 Média
    85 ofertas
    Broker x Python Trading Bot -- 2
    6 dias left
    Verificado

    I need a Python‐based trading bot that plugs directly into Broker's SDK and executes fully automated trades on the NSE. The core objective is a clean, well-documented workflow that: • Authenticates with Broker A’s API and maintains a stable session • Streams live NSE market data from the SDK • Generates, places, modifies, and cancels orders automatically based on my strategy hooks • Logs every request/response for audit and debugging Please build the solution in modular, well-commented Python 3.x so I can swap in new strategies later without touching the integration layer. A concise README with setup steps, environment variables, and example strategy templates will be the final acceptance test.

    $93 Average bid
    $93 Média
    26 ofertas

    php laravel ludo turnament website customization and some bugs fixing details of customization and bugs - 1. I have 2-3 phones, all with the same Game ID login. When I play a game on one phone and upload a screenshot after the game is finished, when I try to join a new game/bet from another phone, or sometimes from the same phone, it displays "You are already in a game," even though no game is currently in progress. This prevents me from joining another game immediately, and users face significant inconvenience. 2. The game should have the option to allow players to place 2-3 bets simultaneously. For example, let's say I log in and set three separate bets of ₹100, ₹200, and ₹500. Now, if another player bets any of these amounts, they can match me on the same bet and start...

    $28 Average bid
    $28 Média
    33 ofertas

    1. The "Magic" Payment Engine (The Core) This is the part that will make shopkeepers say "Wow." * The Android Listener: A background service on an Android phone that "listens" for bank SMS or notifications (HDFC, SBI, PhonePe, etc.). * Instant Verification: It scrapes the UTR number and Amount from the message and sends it to the Mac. * The "Auto-Green" Moment: The billing screen on the Mac/Tablet turns green automatically the second the payment hits. No manual checking required. 2. The "No-Scam" Audit System (The Security) This solves the problem of managers stealing cash or faking entries. * Shift Tracking: Logs the exact time a manager logs in and out. It calculates "Active Hours" so they can't lie about how long they ...

    $276 Average bid
    $276 Média
    41 ofertas

    I am looking for a developer (or small team) to build a cosmetics-focused web platform from scratch. The project is called barelab. It is a review and discovery platform for makeup and skincare, inspired by Fragrantica (community-driven data visualization) and Yuka (ingredient transparency and analysis). The goal is to create a structured, data-based system where products are evaluated based on real user feedback and ingredient breakdown — not marketing claims. At the early stage, before we have our own active user base, I want the platform to support AI-assisted aggregation of reviews and product insights from publicly available sources. The system should be able to summarize opinions and structure them into meaningful attributes. In addition, I will manually collect and rewrite i...

    $1342 Average bid
    $1342 Média
    308 ofertas

    I need a small, self-contained weather widget that anyone can open through a single URL. When the page loads it should immediately show the current conditions plus a multi-day forecast, all rendered graphically—icons, temperature charts, or any other visual approach that gives the information at a glance. The widget must let visitors change the location on the fly (city name, ZIP code, or GPS lookup). As soon as the user switches places, the visuals should refresh with the new data. I’m fine with any reliable public weather API such as OpenWeatherMap or WeatherAPI; feel free to recommend the one that best supports a clean, rate-limited solution. Responsiveness is important—phone, tablet, and desktop should look equally polished. I’d like modern, lightweight co...

    $196 Average bid
    $196 Média
    40 ofertas

    I’m looking for an experienced developer or small team to build a reliable real-time data scraping system for Evolution Gaming live game shows, using an authenticated LeoVegas session, and integrate it into my existing website SpinLytics.com. This project is strictly focused on data reliability. Evolution Gaming does not provide public APIs, so the system must extract live round results directly from the authenticated client session. A working and stable data scraper is mandatory and must be guaranteed by the developer. The system must collect live round data for Evolution game shows such as Crazy Time, Monopoly Live, Dream Catcher, Funky Time and similar. Each round result must be captured immediately when officially published, without missing rounds, without duplicates and in cor...

    $203 Average bid
    $203 Média
    53 ofertas

    Employment Type & Work Location: - Full-time position - Onsite work required - Candidates must be willing to work onsite in Thailand and/or Indonesia (depending on project assignment) Required Skills: - Strong proficiency in Python - Solid knowledge of SQL - Experience with Git version control system - Good English reading and writing skills Preferred Skills: - Experience with ERP systems and/or eCommerce platforms - Business knowledge such as Accounting or Supply Chain - Experience with Docker Additional Advantages: - Hands-on experience with ERP systems (development and/or functional usage) - Knowledge of JavaScript, HTML, CSS - Demonstrable work on GitHub repositories - Public GitHub repository with proven experience will be a strong advantage

    $480 Average bid
    $480 Média
    74 ofertas

    I need my existing systems connected to the official WhatsApp Business API so customers receive fully automated messages at the right moments. The flow should cover three scenarios: a warm welcome when users first engage, a timely follow-up after specific actions, and occasional promotional broadcasts that respect WhatsApp’s policies. Message templates are not ready yet, so part of the job is to craft compliant, on-brand templates, submit them for Meta approval, and wire them into the automation logic. Deliverables • End-to-end WhatsApp Business API integration, including webhook configuration and testing • Three approved template sets: Welcome, Follow-up, Promotional • Clear documentation showing how to modify templates or add new triggers in the future ...

    $533 Average bid
    $533 Média
    66 ofertas

    Build a high-performance Insurtech frontend with data-ready placeholders for an external pricing engine and direct integration with Yatzera.com.

    $188 Average bid
    $188 Média
    64 ofertas

    I’m building a high-end real-estate lead engine that can capture, qualify, and route 150–200 fresh inquiries every week with a hard 99.5 % uptime target. Instead of a generic chatbot, the core of this MVP is a lightning-fast Custom Qualification UI written in React, backed by a Node.js API and a PostgreSQL (or comparable SQL) data store. What I need from you is end-to-end ownership of the stack: solution architecture, clean code, robust testing, and cloud deployment. The product must open the door for future add-ons such as a real-time analytics dashboard, but for this first milestone the focus is on: • Lead scoring system that assigns quality grades the moment data arrives • Automated lead routing that pushes hot prospects to the correct broker or CRM queue wit...

    $8493 Average bid
    $8493 Média
    69 ofertas

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