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My organisation needs a single, cohesive solution that covers the full software lifecycle—design, development and post-launch support. The core objective is to release a production-ready web or mobile application built with a modern framework such as React, Angular or Flutter, and coded in whichever language (Java, Python or C#) best suits the architecture you propose. On the server side, I expect well-structured REST or GraphQL endpoints that connect to a solid data layer. You will design the schema, implement migrations and manage backups using MySQL, PostgreSQL or MongoDB according to performance and scalability needs. Security must be baked in from the start: follow OWASP guidelines, apply role-based access control, encrypt sensitive data and include vulnerability scanning in the CI/CD pipeline. User experience matters just as much. Please plan for intuitive UX/UI by sharing low-fidelity wireframes early, then delivering a polished, clickable prototype before the final build. All assets should come with a concise style guide so future iterations stay consistent. After launch, I will rely on you for knowledge-transfer sessions, clear documentation and lightweight consultancy on sustainable hosting—optimising resource usage and reducing environmental impact where possible. Acceptance criteria • Responsive web or mobile app deployed to staging • Clean Git repository with readable commit history • Automated test suite covering critical paths • Database scripts and seed data included • Design assets (Figma or similar) plus style guide • Deployment playbook and security audit report When you bid, highlight projects of comparable scope, outline your preferred tech stack and give a realistic timeline for delivery.
ID do Projeto: 40017532
62 propostas
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Ativo há 1 mês
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62 freelancers estão ofertando em média $217 USD for esse trabalho

I have extensive experience in Java, Python, User Interface/IA, Software Architecture, and Web Development, making me a perfect fit for the Comprehensive Software & Tech Solutions project. I am confident in delivering a top-quality, production-ready web or mobile application with a modern framework like React, Angular, or Flutter. I am open to adjusting the budget based on the project scope and timeline. Please review my 15-year-old profile to see my past work. I am eager to start working on this project and showcase my commitment. Looking forward to hearing from you.
$175 USD em 7 dias
7,4
7,4

Hi there, I’ve reviewed your Flutter app requirements and would love to help. With 5+ years of experience in cross-platform development, I specialise in clean UI, smooth performance, and robust API integration. I’ll begin with clear planning, share regular progress updates, and ensure the app is fully tested before launch. Let’s connect to discuss your vision — I’m ready to get started! Best, Bhargav Flutter Developer | Android & iOS Expert
$140 USD em 7 dias
6,7
6,7

With over six years of extensive experience in the software development industry, I can assure you that my expertise aligns perfectly with your project requirements. I am well-versed in Java and Python which makes me capable of effectively transforming your design into a functional, production-ready mobile/web application. Throughout my career, I have focused on delivering high-quality solutions using modern frameworks such as Flutter and React-Native, ensuring seamless user experience across platforms. Moreover, my command over REST and GraphQL endpoints coupled with a strong expertise in MySQL, PostgreSQL, and MongoDB will guarantee efficient server and data layer implementation while adhering to your performance and scalability needs. Additionally, security is a top priority for me. Having worked on various projects where data protection was paramount, I understand the necessity of following OWASP guidelines, performing role-based access control and employing robust encryption methods. Lastly, I am proficient at Git versioning controlling that enables clean commit history documentation to ensure the maintainability of the codebase.
$140 USD em 2 dias
6,5
6,5

I build production-ready web/mobile applications using modern stacks with clean architecture, strong security, & scalable data layers. > Frontend: React or Flutter with responsive UI, component-driven design > Backend: REST/GraphQL with Node.js, Python, or C# > Database: MySQL/PostgreSQL with schema design, migrations, backups, & monitoring > Security: OWASP practices, RBAC, encryption, CI/CD vulnerability scanning > Design: Wireframes → clickable prototype → final UI + style guide > QA & DevOps: Automated tests, Git best practices, CI/CD pipeline, staging deployment Deliverables: > Responsive app on staging > Clean Git repo with readable commits > Automated test coverage > DB scripts + seed data > Figma assets + style guide Ready to discuss architecture & align on tech stack. Best regards, Harry
$250 USD em 7 dias
6,9
6,9

Hello, I’ve reviewed your project details carefully and am confident that I can deliver exceptional results. With over 15 years of hands-on experience in PHP development and related technologies, I’ve successfully completed numerous projects for clients across different industries. I’m available to start immediately, and the project price is fully negotiable based on your requirements and scope. I can provide a cohesive solution that covers the full lifecycle from early UX planning through development, security hardening, deployment and post-launch support. My approach starts with sharing low-fidelity wireframes and a polished interactive prototype to ensure the user experience aligns with your expectations. I will deliver a clean and well-structured codebase, a secure backend following OWASP guidelines, fully documented data schema with migrations, and an automated test suite that validates all critical flows. My Technical Expertise Includes: Backend: PHP, Laravel, CodeIgniter, WordPress Frontend: HTML5, CSS3, Bootstrap, jQuery, JSON, Angular, Vue.js, React.js API Integrations: eBay API, Google API, Payment Gateway APIs Tools & Systems: Git, Task Management & Ticketing Systems Service Packages: Unlimited Development Tasks: $100 / week Unlimited Design Tasks: $200 / month Looking forward to your positive response. Thank you.
$140 USD em 7 dias
6,7
6,7

Hi, I can provide a complete end-to-end solution covering your entire software lifecycle — from UX/UI design and architecture planning to development, deployment, and post-launch support. What I will deliver: Modern web/mobile app using React, Angular, or Flutter Backend built with Java, Python, or C# — using REST or GraphQL Robust database layer (MySQL/PostgreSQL/MongoDB) with schema design, migrations, and backups Full security hardening following OWASP, RBAC, encrypted data, CI/CD vulnerability scans UX/UI workflow: wireframes → interactive prototype → final polished UI Style guide for long-term consistency Deployment to staging + documentation + knowledge-transfer sessions Guidance on cost-efficient, environmentally conscious hosting You will receive: ✔ Responsive app deployed to staging ✔ Clean Git repo with readable commit history ✔ Automated tests for critical flows ✔ Database scripts + seed data ✔ Figma design files + style guide ✔ Deployment playbook + security audit report I can manage the full lifecycle and deliver a production-ready solution built for security, scalability, and great user experience. Ready to begin whenever you are.
$220 USD em 7 dias
5,8
5,8

Nice to meet you camila175200, My name is Anthony Muñoz, I express my interest in working on your project after carefully reading the requirements and concluding that they match my area of knowledge and skills. I am currently the lead engineer for the IT agency DSPro and I have more than 10 years of experience in the field. I have successfully completed a large number of similar jobs and I consider your project to be a challenge in which I would like to work and be able to make it a reality. Please feel free to contact me, it will be my pleasure to help you. I greatly appreciate the time provided and I remain attentive to any questions or concerns. Greetings
$444 USD em 7 dias
5,9
5,9

Olá!!! ⚜⭐⭐⭐⭐⚜(( Criando um aplicativo web de recrutamento integrado ao LinkedIn com gerenciamento perfeito de perfis, vagas e conexões ⚜⭐⭐⭐⭐⚜ Percebi que você precisa de uma ferramenta de recrutamento moderna e independente que utilize a API do LinkedIn para recuperação de perfis, publicação de vagas e fluxos de trabalho de networking. O objetivo é proporcionar aos recrutadores uma experiência fluida e automatizada, mantendo a estrita conformidade com as regras do LinkedIn. Com mais de 9 anos de experiência em Node.js, React e desenvolvimento de APIs, construí aplicativos web escaláveis com integrações OAuth e clara separação entre front-end e back-end. Minha abordagem se concentraria na criação de uma plataforma segura e responsiva que extrai dados de candidatos, sincroniza anúncios de vagas e rastreia o engajamento de networking de forma eficiente. Os três recursos mais importantes que priorizarei são: recuperação de dados de perfil com OAuth 2.0, gerenciamento de anúncios de vagas com sincronização em tempo real com o LinkedIn e rastreamento do engajamento de conexões. Vamos discutir como posso levar essa plataforma do conceito à implementação. Mantendo-o robusto e fácil de usar. Atenciosamente, Farhin B.
$110 USD em 10 dias
4,9
4,9

You’re essentially looking for a single partner to own the full lifecycle, from UX sketch to production app to post-launch support and I can cover that end-to-end while keeping everything in one coherent stack and repo. I’ll design, build and deploy a production-ready web or mobile app that ticks every acceptance criterion you’ve listed. Proposed approach & stack (clear from day one): Frontend: React (or Angular if preferred), fully responsive, component-based design system. Backend: Python (FastAPI) or C# (.NET) with REST or GraphQL endpoints, depending on your integration needs. Database: PostgreSQL by default (or MySQL/MongoDB if your data model suggests it), with schema design, migrations and backup strategy. Security & reliability baked in: OWASP-aligned patterns, RBAC, encrypted secrets, logging & monitoring. CI/CD with automated tests (unit + critical-path integration), plus vulnerability scanning. UX/UI & assets: Early low-fidelity wireframes → interactive Figma prototype → final UI kit + style guide, so future teams can extend it safely. Delivery & handover: Clean Git repo with readable commit history. Database scripts + seed data. Deployment playbook, security audit summary, and live knowledge-transfer sessions. Recently completed a similar full-lifecycle React + PostgreSQL platform for a B2B SaaS client (design → build → handover); happy to share a high-level walkthrough.
$140 USD em 7 dias
4,8
4,8

Hello! As per your project post you are looking to build a Comprehensive Software & Tech Solution covering the full lifecycle from design to post-launch support. The goal is to deliver a production-ready web or mobile application with a secure, scalable backend, intuitive UX/UI, and maintainable architecture tailored to your organisation’s needs. My focus will be on delivering a cohesive solution featuring modern front-end frameworks (React, Angular, or Flutter), robust REST/GraphQL APIs, structured database schemas with MySQL/PostgreSQL/MongoDB, and secure role-based access control. The system will include polished wireframes, interactive prototypes, and a style guide to ensure consistent design and usability. I specialize in full-stack development, secure system architecture, and end-to-end delivery of web and mobile applications. My focus will be on building a reliable, scalable, and maintainable platform while providing clear documentation and post-launch support for smooth handover. Let us connect to review preferred technology stack, target platforms, security and compliance requirements, and the scope of post-launch support and knowledge transfer. Best regards Nikita Gupta.
$140 USD em 18 dias
4,9
4,9

Hi there, I understand that your main challenge is to develop a cohesive software solution that covers the entire lifecycle, ensuring both robust functionality and an excellent user experience. In my previous role, I successfully led the development of a full-stack web application using React and Node.js, achieving a 30% increase in user retention through a streamlined user interface and enhanced backend performance. Additionally, I implemented secure RESTful APIs and a scalable database architecture that improved data retrieval times by 40%. To meet your requirements, I will design a modern application using React for the front end and Python with Flask for the backend, ensuring a robust and secure data layer with PostgreSQL. I will also create low-fidelity wireframes early in the process to facilitate feedback, followed by a polished prototype, and ensure comprehensive documentation and knowledge transfer post-launch. I would be happy to discuss your needs and get started right away. Best regards, Marko
$140 USD em 7 dias
4,2
4,2

Hey Camila G., Good afternoon! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in Angular, Web Development, Java, User Interface / IA, Python, Flutter, REST API and Software Architecture. For more information about me, please refer to my portfolios. I am checking your attachment, I'll update you shortly... I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. For more details Chat with us
$30 USD em 2 dias
4,3
4,3

Hi, I hope you are doing well! After carefully reviewing the details of your project, I would like to offer my services to deliver the expected results. I am confident that you will not be disappointed as I am experienced, creative, and efficient in completing tasks. With an impeccable record, all of our clients enjoy working with me, and I am certain that you will too. I have expertise in various technologies such as PHP, Laravel, CI, Cake PHP, ZEND, JavaScript, Node, React, Angular, Next, Bootstrap, jQuery, HTML, and CSS. Additionally, I am skilled in mobile development (Android, iOS) and REST API integration. Furthermore, I have experience working with databases like MySQL, NoSQL, and Mongo. Lastly, I am proficient in various content management systems including WordPress, Wix, OpenCart, Shopify, Magento, Joomla, Drupal, and PrestaShop. With Regards! Manpreet Kaur
$250 USD em 7 dias
4,5
4,5

Hi there, As an experienced full-stack engineer, I'm confident that I can bring a unified solution to your software project that far surpasses any gamble on developer roulette you may have experienced in the past. My motto is quality over quantity, and I deliver the output of four engineers while snacking like just one. My expertise lies in proficiency with modern frameworks like React, Angular and specifically Flutter as you've mentioned, along with languages such as Java, Python and C# - a skillset that would ensure an optimal fit for your project architecture. On the server side, I excel at developing well-structured REST or GraphQL endpoints and have deep experience with data layer management on MySQL, PostgreSQL or MongoDB - ensuring performance and scalability while prioritizing security following OWASP guidelines and applying role-based access control. Furthermore, I am no stranger to the need for interactive and thoughtful UX/UI design; providing low-fidelity wireframes early allows us to iron out any uncertainties promptly, which I then translate into polished clickable prototypes before laying the foundation of the final build. The story doesn't end at launch, relying on me also means investing in sustainable hosting; optimizing resource usage to reduce environmental impact whilst delivering consistent performance. Let's smoothly navigate this entire lifecycle together; from comprehensive documentation to knowledge-transfer Thanks! Maksym
$150 USD em 13 dias
4,0
4,0

Hello Camila, I’ve read your brief and I’m confident I can deliver a single, cohesive full-lifecycle solution that goes from design to post-launch support. I’m a Full Stack developer with 6+ years building React, Angular and Flutter frontends and backend APIs in Python, Java and C#, and I’ll lead architecture, secure implementation and delivery. You need a production-ready responsive app on staging, clean Git history, REST/GraphQL endpoints, schema design with migrations and backups, OWASP-based security with RBAC and encryption, automated tests, Figma designs and a style guide, plus documentation and handover. My approach is to use React or Angular for web (Flutter for cross-platform mobile) with Django/DRF (or ASP.NET Core if you prefer C#) and PostgreSQL by default, implementing migrations, backups, CI/CD with vulnerability scanning, role-based access control and an automated test suite. I’ll deliver low-fidelity wireframes quickly, a clickable Figma prototype, database scripts, deployment playbook and a security audit. I can provide an initial staging build and wireframes in ~2 weeks and full delivery in ~45 days. Please feel free to contact me so we can discuss more details. I am looking forward to the chance of working together. Best regards, Billy Bryan.
$250 USD em 3 dias
3,7
3,7

With my robust 15+ years of web development experience, I am well-suited to take on your demanding software and tech solution project. In recent times, I've advanced my skills in the latest industry trends such as React, Angular and Flutter, and modern architectures like Node.js. Partnering these skills with modern language proficiency (Java, Python, and C#) lets me offer versatile solutions tailored to each unique requirement. You called for a comprehensive lifecycle coverage and that's exactly what I specialize in: starting from design and development through to post-launch support. My reputation hinges on clean code practices and you can expect no different for your REST or GraphQL end-points with a secure MySQL, PostgreSQL, or MongoDB data layer. Meeting OWASP security guidelines is crucial and is something I prioritize from day one of a project. Bringing an intuitive user experience to the table is more than code for me; it's a craft that requires meticulousness from low-fidelity wireframe sharing all the way to clickable prototypes before final build delivery. Additionally, my commitment extends beyond launch; I'll provide knowledge transfer sessions and lightweight consultancy on hosting where resource efficiency and environmental impact minimization will be key factors of consideration. Allow me the opportunity to bring utmost precision and dedication to your project white maintaining strict deadlines Thanks, Jay
$140 USD em 7 dias
4,0
4,0

With a rich background in Flutter development, I'm confident in my ability to help your organization accomplish its goal of creating a comprehensive software solution. I've successfully developed feature-rich mobile applications in various domains including e-commerce, productivity, attendance management, and more. These experiences have honed my skills not only in leveraging modern frameworks but also in managing data effectively, improving performance, ensuring security, and enhancing user experience. In addition to being an expert in mobile development, I am also well-versed in building automated workflows using AI. This skillset uniquely positions me to assist your team throughout the entire lifecycle: from designing low-fidelity wireframes through deploying a polished, clickable prototype and facilitating knowledge-transfer sessions. My experience optimizing resource usage and reducing environmental impact can greatly benefit your post-launch phase as well. Past clients have praised my communication abilities, readability of my commit history, and the overall quality of my work - something that stands clear in my well-structured repositories. To deliver within your timeline wouldn't be a concern since I religiously follow best practices for project management to ensure timely delivery without any compromises on quality and documentation. Let's not just develop an app together but create something impactful for years to come!
$140 USD em 7 dias
3,8
3,8

Olá!! Tenho vasta experiência na entrega de soluções de software completas para plataformas web e mobile! Sou desenvolvedor e arquiteto de soluções em tempo integral, com mais de 8 anos de experiência em design, desenvolvimento e manutenção de aplicações robustas utilizando frameworks modernos como React, Angular e Flutter, juntamente com tecnologias de backend como Java, Python e C#. Sou especializado na criação de aplicações escaláveis, seguras e prontas para produção, com APIs REST e GraphQL bem estruturadas, esquemas de banco de dados confiáveis e gerenciamento eficiente de dados utilizando MySQL, PostgreSQL ou MongoDB. Segurança, manutenção e desempenho são fundamentais para a minha abordagem. Garanto que o controle de acesso baseado em funções, a criptografia de dados, a verificação de vulnerabilidades e as melhores práticas sejam aplicadas em todo o ciclo de desenvolvimento. Forneço UX/UI intuitivas por meio de wireframes de baixa fidelidade, protótipos interativos e um guia de estilo abrangente para manter a consistência visual. Após o lançamento, forneço documentação completa, manuais de implantação, sessões de transferência de conhecimento e consultoria para otimizar a hospedagem e a eficiência do sistema. Também priorizo práticas de código limpo, arquitetura modular, testes automatizados e repositórios com controle de versão para garantir uma solução escalável e de fácil manutenção. Atenciosamente, Sushma S.
$140 USD em 7 dias
4,7
4,7

Hello, I’m Rahul Singh from Team Velora, and for 3 years we’ve delivered end-to-end web and mobile applications with modern frameworks, secure backend architectures, and intuitive UX/UI. We can develop your production-ready solution with a scalable data layer, role-based access control, and full post-launch support including documentation and knowledge transfer. Please come to private chat so I can share similar full-stack projects and outline the optimal tech stack for your app.
$190 USD em 28 dias
3,3
3,3

I am Sumit Joshi from Sacesta Technologies. Your requirement for an end to end lifecycle partner aligns very well with how we work. I can take your product from discovery and design to a secure, production ready web or mobile app using React or Angular on the frontend and a Java, Python or C# backend, based on what best fits your domain. On the server side I will design a normalized schema in PostgreSQL or MySQL, write migrations and seed data, and expose REST or GraphQL APIs with RBAC, input validation, encryption for sensitive fields and OWASP aligned hardening. CI/CD will include automated tests on critical flows, linting and basic vulnerability scans. For UX I will start with low fidelity wireframes, then move to an interactive Figma prototype and finally a pixel perfect implementation, delivered with a concise style guide for future teams. Recent comparable work includes FlexoSpaces, a coworking SaaS portal, and HustlerGuys CRM, a full ERP platform with RBAC, reports and audits. You will get a clean Git repo, deployment playbook, database scripts, documentation and knowledge transfer sessions, plus guidance on hosting options that balance performance, cost and environmental impact. Once we align on scope, I can share a detailed execution plan and phases. Regards, Sumit Joshi
$140 USD em 7 dias
2,6
2,6

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