API RESTful Jobs

I need a fully automated workflow inside Google Sheets that removes manual, repetitive work and gives me reliable, daily insights. Scope of work • Automate data entry: pull fresh records from external databases and online APIs, while still allowing occasional manual overrides in dedicated input tabs. • Automate calculations: once the data lands, run predefined formulas and custom Apps Script functions so key metrics populate immediately. • Automate data analysis: generate pivot-style summaries, trend charts, and conditional-format dashboards that refresh on schedule. Key requirements – Data sources include manual input, external databases (MySQL/PostgreSQL), and several REST-based APIs. Connection logic, authentication handling, and error catching must be bui...

I’m assembling a small, Poland-based team and need an experienced full-stack developer who is fluent in Polish. The immediate focus is a web application where the backend is already outlined around Node.js (Express, TypeScript preferred) and the frontend will be built with Vue.js 3 and Vite. Your day-to-day will involve: • Designing and building new features end-to-end, from database schema to responsive UI. • Writing clean, testable JavaScript/TypeScript code on both client and server. • Integrating RESTful endpoints and WebSocket streams. • Participating in code reviews and architecture discussions—communication in Polish is essential because the rest of the product team and stakeholders speak it exclusively. Tech stack in scope: Node.js / Express ...

We're building a lightweight Windows desktop agent for our SaaS gym management platform. The agent connects to eSSL/ZKTeco biometric fingerprint devices on the local network and syncs data with our cloud backend. WHAT THE AGENT DOES: - Connects to eSSL devices via TCP/IP (port 4370) using (COM/ActiveX) - Polls our REST API for pending commands (sync users, set membership expiry dates, enable/disable users) - Executes SDK commands on the device and reports results back to cloud - Runs as a system tray app, auto-starts on boot - Includes a first-run setup wizard (enter API key → auto-discover device on LAN → connect) KEY SDK FUNCTIONS: Connect_Net, SSR_SetUserInfo, SetUserValidDate, SSR_EnableUser, SetDeviceTime2, ReadNewGLogData, SearchDevice, GetSerialNumber, BeginBatchUp...

Title: Senior Android Developer: Multimodal AI Pipeline (Real-time Video & Audio) **Project Description:** We are seeking a Senior Android Engineer to develop a modular, high-performance infrastructure for **real-time Multimodal capture (Video + Audio)**. The core of the project is a "Hybrid AI Routing Engine" that intelligently switches between on-device local processing and cloud analysis using Gemini 2.0. This application is an R&D prototype that must be **Play Store Ready**, with a heavy focus on background stability and thermal management. **Important:** The ultimate goal is to port this architecture to an Android-based smart glasses OS (AugmentOS), so the code must be hardware-agnostic. **Technical Specifications:** **1. Multimodal Pipeline (Camera + Audio):** ...

I need an end-to-end web platform that lets travellers seamlessly reserve the services below in one place: • Hotels • Car rentals • Spa packages • Local tours The system must recognise three user roles—Guests, Service providers, and Admin—each with its own dashboard and permissions. Core flows include real-time availability search, price and inventory management for providers, secure checkout, and a clean admin console for oversight and reporting. I’m flexible on the tech stack, but modern, well-documented frameworks (think React or Vue on the front end, Node.js, Laravel, or similar on the back end) and RESTful or GraphQL APIs are preferred so the platform can scale. Payment gateway integration (Stripe, PayPal, or your recommended option) and ...

Full-Stack Developer for MVP Website Monitoring and Audit Suite We are seeking a skilled Full-Stack Developer to create a Minimum Viable Product (MVP) for a website monitoring and audit suite. The ideal candidate will have experience with both front-end and back-end technologies to build a user-friendly and efficient platform. You will be responsible for designing, developing, and implementing features that allow users to monitor website performance and conduct audits effectively. Strong problem-solving skills and attention to detail are essential. If you are passionate about building innovative solutions, we would love to hear from you! Key Responsibilities: Scanner Engine: Build a resilient microservice using Puppeteer and the Lighthouse Engine capable of mobile-first emulation and hardw...

I want to launch a lean, working MVP that lets users log their bills, receive due-date reminders, and see clear expense summaries. The product must be available both as a responsive web app and as a native Android app, with one shared back-end and database. Scope • Design – I do not have wireframes, so I will rely on you for a clean, intuitive UI/UX that feels consistent across web and Android. • Core build – Implement user sign-up/login, bill entry and editing, automated reminder scheduling (push / email), and a dashboard that aggregates expenses by category, date, and total. • Tech choice – I’m open to any modern stack you are comfortable with. Feel free to propose React, Angular, Vue, Flutter, Kotlin, or something else, as long as the final ...

I need a small, self-contained Python backend that ingests local MP3 files and automatically extracts musical information. For every track the service must detect • BPM and time signature • Overall tempo as well as integrated loudness (LUFS or a comparable metric) • Phrase boundaries and sections of complete silence Once a file is processed the results have to be written to a single CSV file—one row per track, neatly formatted with column headers for each metric. No database or JSON output is required. A minimal REST or command-line interface that lets me submit a path to an MP3 and returns the processing status is enough; the core value is the signal-processing code itself. Please rely on well-known Python libraries such as librosa, Essentia, pydub or simil...

I'm looking for an experienced Android app developer to create a simple yet functional app for ISON EYEWEAR. The app will be used by retailers to place orders, track order status, and manage their account details. An admin panel is required to manage products, stock, and view orders. Key Features: - Retailer Login: Secure authentication via email and password. - Order Placement: Intuitive interface for placing orders. - Order Tracking: Ability to track order status. - Product Information: Access to product images, descriptions, and stock availability. - Admin Management: Manage products and stock, view and process orders. Ideal Skills and Experience: - Proven experience in Android app development. - Strong UI/UX design skills for a simple, user-friendly interface. - Familiarity with...

I need a seasoned backend developer to take full ownership of the server-side engine for a new ecommerce platform and stay on for ongoing maintenance as we scale. The scope begins with architecting a clean, well-documented API layer that powers the entire buyer journey—from browsing the catalogue and filling a cart, through checkout, payment, and post-purchase flows such as returns. In parallel, you’ll build out the seller pathway: onboarding, KYC verification, inventory sync, and order management. Key requirements • Robust cart, checkout, and return logic that can handle discounts, promotions, and edge-case calculations without breaking state. • Seamless Razorpay integration (cards, wallets, net-banking—all via Razorpay’s SDK and REST endpoints) with...

The FIGMA for my credit-card-offers app is complete; now I need the server-side engine that will make the screens come alive. The scope is an MVP-ready backend built from scratch, including both the API layer and a brand-new database. The will work in sync with a browser extension being developed separately. I haven’t committed to a tech stack yet, so feel free to suggest Node.js, Python, Java, or another modern choice you’re comfortable maintaining. Whichever stack you choose, I expect. Need to develop both Android and iOS.

I have an existing e-commerce platform built with React.js and I’m ready to tighten things up so the shopping experience feels faster, cleaner, and more conversion-friendly. The core architecture is in place: React on the front end, a RESTful API feeding product data, and a payment gateway that already processes live orders. What’s missing is the polish that makes customers stay, browse, and check out without friction. Here’s what I need from you: review the current codebase, identify bottlenecks, and implement pragmatic improvements. That may include refactoring components for better state management, trimming bundle size, introducing code-splitting or lazy loading where it matters, and revisiting key screens—home, product detail, cart, and checkout—for a mo...

I need a clean, well-documented Node.js solution that fetches JSON data from a specified API endpoint and turns it into a professionally formatted PDF made up exclusively of tables. The flow is straightforward: call the API, parse the JSON payload, map the fields to table columns, then render each table so it paginates gracefully and, when necessary, repeats headers across pages. Key points • Source data arrives solely from an API in JSON format—no manual entry or secondary feeds. • The PDF contains tables only; no images or free-form text blocks beyond table headers or footers you may add for clarity. • Any solid, maintained library is fine—pdfkit, Puppeteer, jsPDF, or a comparable Node.js toolset—as long as it supports custom styling (borders, alte...

Project Overview: We are looking for an experienced iOS Engineer to build the core architecture of a Real-Time Computer Vision Application. The app requires a high-performance video pipeline that captures frames, runs local inference (CoreML), and selectively sends data to a Cloud LLM API. This is a pure engineering challenge. We need clean, modular code that handles concurrency, thermal management, and hardware switching without draining the battery instantly. Phase 1 Scope (MVP): You will build a functional "Skeleton App" focusing on performance and stability using the internal camera. Key Technical Requirements: Advanced Camera & Audio Pipeline (AVFoundation): Implement a robust AVCaptureSession to handle video buffers (CMSampleBuffer). CRITICAL: The architecture mus...

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I’m building an internal business tool and need an experienced .NET Core developer who can work during the India night shift (roughly 9 PM–5 AM IST). The project centers on a browser-based web application, so you’ll spend most of your time inside ASP.NET Core, Entity Framework, and SQL Server, wiring up clean MVC or Razor Pages, setting up dependency injection, and testing endpoints with Postman or Swagger. You’ll collaborate directly with me over Teams for quick stand-ups and code reviews, pushing updates to a Git repository each night. I already have wireframes, a partial domain model, and an Azure DevOps board with user stories ready for you; your first tasks will involve refining the data layer, implementing responsive views, and tightening up API endpoints. D...

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, ...

I’m building a new mobile application and I need a robust Java Spring Boot backend to power it. The core services you’ll create must cover: • User authentication and management with full multi-factor authentication (MFA) and support for future multi-party authentication flows. • A streamlined customer-onboarding journey that begins with registration and ends with a verified, fully profiled user record. • Reliable data storage and retrieval using a relational engine—MySQL or PostgreSQL, whichever you are most comfortable optimising. RESTful APIs should be documented with Swagger/OpenAPI, secured with JWT or a similarly strong token strategy, and thoroughly unit- and integration-tested. I’ll provide the mobile team’s contract-first API s...

## Project Overview We are developing a mobile application integrated with a Shopify embedded app and a web-based admin dashboard. We are looking for an experienced **full-stack developer (or team)** and a **UI/UX designer** to support development from wireframing to deployment. This is an MVP with potential for long-term collaboration and feature expansion. --- ## Required Technical Skill Set ### Backend Development * Strong experience with **Node.js / Python / PHP** (flexible stack) * RESTful API development * OAuth and authentication flows (JWT, token-based auth) * Webhook handling * Cloud-based architecture * Database design (Postgres / MongoDB / Firebase or equivalent) * File storage integration (AWS S3 or similar) * Scalable SaaS architecture planning --- ### Mobile Development * ...

I have fully defined the MVP of Retail Guardian, an alert service that will help micro-SMEs monitor their finances, sales, and inventory in real time. The work consists of taking this functional design and turning it into a usable product, delivered in clearly defined milestones, with a total budget cap of €5,000. Chosen Technologies Backend: Python (Django) Frontend: React Database: PostgreSQL (or MySQL if there’s a strong reason) Scope by Milestone Data model and REST APIs in Django, with basic authentication and permissions. Automation of data ingestion for financials, sales, and inventory (CSV, webhook, or API sources; specifications and samples are already available). Web alert dashboard where users can filter, mark as reviewed, and receive notifications. Security,...