Hire the Best REST API Developers
Surat, India
๐ Top Rated Plus | 9+ Years Experience | 7700+ Hours | 100% Job Success Hi, I'm Gopal, a Senior Full-Stack Web Developer & AI Application Specialist with over 9 years of experience delivering secure, scalable, and high-performance applications. I specialize in end-to-end development, from clean and responsive user interfaces to powerful backend systems. I also built and productionised AI platforms similar to Lovable, ChatGPT, and Base44, including private deployments, API integrations, and automation workflows. Whether you need a SaaS platform, an AI chatbot, a business automation system, an eCommerce solution, or a Base44 app rebuilt outside the platform, I deliver solutions that are reliable, maintainable, and built to scale. ๐ง AI & Automation โ Lovable-style AI apps โ ChatGPT-like conversational systems โ Base44 app duplication & migration โ AI agents & workflow automation โ API-driven AI integrations ๐งฑ Backend & Frameworks โ Laravel / Filament โ CodeIgniter โ WordPress (Custom Themes & Plugins) โ CakePHP ๐จ Frontend & Realtime โ ReactJS โ VueJS โ JavaScript (ES6+) โ jQuery / AJAX โ WebSockets ๐๏ธ Databases & APIs โ REST API development & integration โ MySQL โ MongoDB ๐ Web & Design โ HTML / HTML5 โ CSS / Bootstrap โ Social media integrations โ Photoshop I communicate clearly in spoken and written English and am known for being proactive, reliable, and deadline-driven. Client satisfaction comes from clean code, transparency, and consistent delivery.
- REST API
- MySQL
- Laravel
- CodeIgniter
- CakePHP
- React
- jQuery
- API Integration
- Payment Gateway Integration
- Vue.js
- Angular
- Ecommerce Website Development
- React Native
- ERP Software
- Medical Billing
Debre Tabor, Ethiopia
Iโm a Back-End Developer specializing in Django, Django REST Framework, PostgreSQL, and MySQL, with strong experience building secure, scalable, and well-structured APIs for real-world applications. I focus on writing clean, maintainable code, designing efficient database systems, and delivering reliable backend logic that supports smooth, high-performance user experiences. Alongside backend development, I bring solid skills in Machine Learning and Data Analytics, using tools like Pandas, NumPy, scikit-learn, TensorFlow, and Power BI to build predictive models, automate workflows, and create data-driven dashboards. This allows me to support clients who need both robust backend systems and intelligent, analytics-powered features. I have successfully completed projects with 100% Job Success, demonstrating strong communication, consistent delivery, and high-quality results. I always ensure clear documentation, proper API testing, and smooth integrations for frontend developers. #. What I Can Do for You Build and document REST APIs (JWT Authentication, CRUD, filtering, pagination) Design and optimize relational databases (PostgreSQL, MySQL) Deploy backend systems using Docker, Linux, GitHub, and cloud services Integrate Celery + Redis for background jobs and async tasks Develop ML models for prediction, classification, and automation Create interactive dashboards and data visualizations Troubleshoot, refactor, and scale existing backend systems
- RESTful API
- Python
- React
- JavaScript
- Microsoft Excel
- TensorFlow
- Docker Compose
- Kubernetes
- TypeScript
- Django
- MySQL
- PostgreSQL
- Unit Testing
- Firebase
- Microsoft Power BI
Queens County, New York
Need a backend that scales, a frontend thatโs blazing fast, responsive, and production-ready, APIs that work seamlessly, and workflows on autopilot? Thatโs what I deliver. As a Senior Full Stack Developer (6+ years), I help businesses scale faster, cut inefficiencies, and launch reliable products by building robust APIs, secure databases, and automation-ready systems. Recent Project: Mavericks Motors (SaaS MVP) When Mavericks Motors was at risk of missing a critical launch due to delays and poor execution from previous developers, we stepped in and turned things around. In just 1.5 months, I delivered a polished, scalable MVP that allowed the founder to launch on time, restore investor confidence, and avoid reputational loss. Beyond meeting the deadline, the solution gave the business: a. Investor-ready scalability with a solid backend and AWS deployment b. Enhanced customer engagement through four intelligent chatbots (Buy, Finance, Sell, Generic c.Assistant) that delivered real-time, semantic searchโdriven support d. Future-proof AI capabilities, positioning Mavericks Motors as an innovative, tech-forward company in its space The real outcome: instead of a missed opportunity, Mavericks Motors launched successfully, impressed investors, and gained a foundation to scale confidently. Tech Stack & Skills: a. Languages: JavaScript (ES6+), TypeScript, Python, Dart, SQL, NoSQL Backend Frameworks & Libraries Node.js, Nest.js, Express.js, Django, Flask, FastAPI, GraphQL (Apollo, Hasura) b. Databases: PostgreSQL, MySQL, AWS RDS, Supabase MongoDB, Firebase, Redis Vector DBs: Pinecone, Weaviate, pgvector c. APIs & Integrations: REST, GraphQL, WebSockets Stripe, PayPal, Google Maps, Twilio, Slack, HubSpot, Telegram, WhatsApp, Zapier OpenAI, ElevenLabs d. AI, Automation & ML n8n (workflow automation), LangChain (RAG pipelines, LLM apps) Chatbots (custom assistants for Buy/Finance/Sell/Support) Semantic Search: TypeSense, Pinecone, Weaviate, pgvector ML/AI: Pandas, NumPy, TensorFlow, Scikit-learn, PyTorch Dialogflow, Rasa, Voiceflow e. Cloud & DevOps AWS (EC2, S3, Lambda, CloudFront, RDS, DynamoDB, Amplify) GCP, Firebase, Supabase Docker, Kubernetes (basics), CI/CD (GitHub Actions, GitLab CI) Railway, Vercel, Serverless & Microservices Frontend (Supporting Skills) React.js, Next.js, Vue.js, Flutter, React Native, Tailwind CSS With 6+ years of backend expertise, Iโve delivered SaaS platforms, MVPs, real-time applications, and migration projects for clients worldwide. I specialize in helping businesses in B2B, FinTech, eCommerce, AI, and SaaS scale with reliable backend systems. Letโs connect and discuss how I can bring the same value to your project, delivering not just code, but real business impact.
- REST API
- Automation
- AI Bot
- AI Agent Development
- AI Implementation
- AI Product Management
- ChatGPT
- ElevenLabs
- Node.js
- Next.js
- Python
- FastAPI
- GraphQL
- JavaScript
- SQL
Accra, Ghana
I've built production systems serving 100,000+ users and currently lead engineering as CTO of a SaaS platform โ so I bring senior-level architecture, not just code. Need a backend or full-stack engineer who ships fast without breaking what already works? I build production NestJS/Node.js APIs, Next.js web apps, and tricky third-party integrations (Stripe, GoHighLevel, Phorest, Zapier, PayFast) that other developers got stuck on. Hi ๐ I'm Rafique โ a Top Rated AI-Native Full Stack Engineer with 100% Job Success on Upwork. I have 5+ years of experience building backend services, REST APIs, and SaaS platforms for startups and growing teams. Most of my work falls into one of three buckets: shipping new MVPs quickly, fixing and scaling existing apps, or building the integration layer that connects your product to the tools your business actually runs on. My core stack: ๐ง Backend: Node.js, NestJS, TypeScript, REST APIs, PostgreSQL, MongoDB, Prisma ๐จ Frontend: Next.js, React, TypeScript โ๏ธ Infra & Tools: AWS (Lambda, Cognito), Vercel, GitHub ๐ง AI-Native Workflow: Claude, Codex, and Cursor โ used where they reduce bugs and ship faster, not as a replacement for clean architecture What clients hire me for: โ NestJS + Node.js backends with secure authentication and clean REST APIs โ Stripe, GoHighLevel, Phorest, PayFast, and Zapier integrations โ Next.js full-stack apps (auth, dashboards, SaaS MVPs) โ Performance, migrations, and stabilizing existing codebases โ Clear estimates, proactive updates, no surprises Recent client feedback: โญ "Rafique ROCKS โ something I was trying to do on my own for hours and hours, he just did it." โ Phorest โ GoHighLevel integration โญ "Best developer to work with โ extremely technical, patient, good communication, and most importantly knows his code. Definitely gonna hire again." โ PayFast / Next.js integration โญ "He delivered high-quality authentication features, communicated clearly, and was very patient and professional." โ NextJS + NestJS auth setup Send me a short message about what you're building or what's broken. I'll reply within 4 hours with a clear plan, realistic timeline, and an honest answer on whether I'm the right fit โ no fluff, no sales pitch.
- REST API
- API
- API Development
- NestJS
- Node.js
- TypeScript
- JavaScript
- Database
- AWS Application
- API Integration
- Scripting
- PostgreSQL
- MongoDB
- Back-End Development
- Full-Stack Development
San Francisco, California
๐๐ง๐ผ๐ฝ ๐ญ% ๐๐ ๐ฝ๐ฒ๐ฟ๐-๐ฉ๐ฒ๐๐๐ฒ๐ฑ ๐ง๐ฎ๐น๐ฒ๐ป๐ | ๐๐๐น๐น ๐ฆ๐๐ฎ๐ฐ๐ธ ๐๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐ฒ๐ฟ | ๐ก๐ผ๐ฑ๐ฒ.๐ท๐, ๐ฃ๐๐๐ต๐ผ๐ป & ๐๐ฎ๐๐๐๐ฃ๐ | ๐ช๐ฒ๐ฏ & ๐ ๐ผ๐ฏ๐ถ๐น๐ฒ ๐๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐บ๐ฒ๐ป๐ I am an expert Full Stack Developer with over 12 years of experience in building scalable, high-performance web and mobile applications. With a deep understanding of modern frameworks and technologies such as Node.js, Python, and FastAPI, I have consistently delivered innovative solutions to complex challenges, working across the full stack to build end-to-end solutions. As a top 1% Expert-Vetted Talent, Iโve been pre-screened by industry professionals and talent managers to ensure I meet the highest standards of technical expertise and quality. Throughout my career, Iโve had the privilege of working in dynamic, high-impact roles at some of the most renowned tech companies, where I gained extensive experience in leading engineering teams and architecting advanced systems. ๐ฃ๐ฟ๐ผ๐ณ๐ฒ๐๐๐ถ๐ผ๐ป๐ฎ๐น ๐๐ ๐ฝ๐ฒ๐ฟ๐ถ๐ฒ๐ป๐ฐ๐ฒ 1- ๐ฆ๐ฒ๐ป๐ถ๐ผ๐ฟ ๐ฆ๐ผ๐ณ๐๐๐ฎ๐ฟ๐ฒ ๐๐ป๐ด๐ถ๐ป๐ฒ๐ฒ๐ฟ | ๐ ๐ถ๐ฐ๐ฟ๐ผ๐๐ผ๐ณ๐ Spearheaded large-scale, cloud-based software systems that supported Microsoftโs enterprise solutions, focusing on security, performance optimization, and user experience. Led cross-functional teams to implement key features for Microsoft Azure and Office 365. 2- ๐ฆ๐ฒ๐ป๐ถ๐ผ๐ฟ ๐ฆ๐ผ๐ณ๐๐๐ฎ๐ฟ๐ฒ ๐๐ป๐ด๐ถ๐ป๐ฒ๐ฒ๐ฟ | ๐๐ฎ๐ฐ๐ฒ๐ฏ๐ผ๐ผ๐ธ Contributed to the core engineering teams responsible for Facebookโs backend services, handling millions of active users and optimizing real-time data processing. Played a pivotal role in building scalable APIs, improving system performance, and enhancing user experience. ๐ฏ- ๐๐ฒ๐ฎ๐ฑ ๐ฆ๐ผ๐ณ๐๐๐ฎ๐ฟ๐ฒ ๐๐ป๐ด๐ถ๐ป๐ฒ๐ฒ๐ฟ | ๐๐ฒ๐น๐น๐ผ๐ด๐ผ๐ ๐๐ Directed a team to build AI-powered government solutions, improving efficiency and accessibility for public services. Collaborated with stakeholders to design innovative features while ensuring system reliability and scalability. ๐๐ฒ๐ ๐ฆ๐ธ๐ถ๐น๐น๐ & ๐ง๐ฒ๐ฐ๐ต๐ป๐ผ๐น๐ผ๐ด๐ถ๐ฒ๐ 1- Backend Development: Skilled in Node.js, Python, FastAPI, and Express.js for building scalable APIs and microservices. 2- Frontend Development: Experienced with React.js, Vue.js, and HTML/CSS for creating responsive web interfaces. 3- Mobile Development: Expertise in React Native and Flutter for cross-platform mobile app development. 4- Cloud & DevOps: Proficient in AWS, Azure, Google Cloud, Docker, Kubernetes, and CI/CD for scalable deployment. 5- Database Management: Strong in relational and NoSQL databases like PostgreSQL, MySQL, MongoDB, and Redis. 6- Agile & Leadership: Experienced in leading Agile teams, driving project success, and mentoring junior developers. ๐๐น๐ฒ๐ ๐ถ๐ฏ๐น๐ฒ ๐ง๐ถ๐บ๐ฒ๐๐ผ๐ป๐ฒ ๐๐๐ฎ๐ถ๐น๐ฎ๐ฏ๐ถ๐น๐ถ๐๐: I am comfortable working across a variety of time zones and can adapt to your teamโs working hours, ensuring seamless collaboration no matter where you're based. Whether you need overlapping work hours or full-time availability, I am open to flexible arrangements that align with your teamโs needs. ๐๐ถ๐ด๐ต-๐ค๐๐ฎ๐น๐ถ๐๐, ๐ฆ๐ฐ๐ฎ๐น๐ฎ๐ฏ๐น๐ฒ ๐ฆ๐ผ๐น๐๐๐ถ๐ผ๐ป๐: I have a proven track record of building high-performance systems that scale efficiently, ensuring long-term stability and performance. I am committed to delivering robust solutions that meet business goals while optimizing user experience. ๐๐ฎ๐๐-๐ฃ๐ฎ๐ฐ๐ฒ๐ฑ & ๐ฅ๐ฒ๐๐๐น๐๐-๐๐ฟ๐ถ๐๐ฒ๐ป: I thrive in fast-paced environments and understand the importance of meeting deadlines without compromising on quality. I take a results-driven approach to development, always focusing on delivering value quickly and effectively. ๐ฃ๐ฟ๐ผ๐๐ฒ๐ป ๐๐ฒ๐ฎ๐ฑ๐ฒ๐ฟ๐๐ต๐ถ๐ฝ ๐ฎ๐ป๐ฑ ๐ง๐ฒ๐ฎ๐บ ๐๐ผ๐น๐น๐ฎ๐ฏ๐ผ๐ฟ๐ฎ๐๐ถ๐ผ๐ป: Throughout my career, Iโve led multiple cross-functional teams, ensuring strong collaboration and clear communication at all stages of development. Whether working as a lead engineer or as part of a team, I take an active role in mentoring and guiding junior developers to achieve their full potential. ๐๐ป๐ป๐ผ๐๐ฎ๐๐ถ๐๐ฒ & ๐๐ผ๐ป๐๐ถ๐ป๐๐ผ๐๐ ๐๐ฒ๐ฎ๐ฟ๐ป๐ฒ๐ฟ: I am passionate about staying ahead of the curve in an ever-evolving tech landscape. My curiosity drives me to constantly explore new tools, technologies, and techniques, so I can apply the best possible solutions to each project I undertake. ๐๐ฒ๐โ๐ ๐๐๐ถ๐น๐ฑ ๐ฆ๐ผ๐บ๐ฒ๐๐ต๐ถ๐ป๐ด ๐๐ฟ๐ฒ๐ฎ๐ ๐ง๐ผ๐ด๐ฒ๐๐ต๐ฒ๐ฟ! With expertise in Full Stack Development, cloud solutions, and Agile, I offer flexible timezone availability and a commitment to delivering high-quality, scalable applications, ready to collaborate and drive results. ๐๐ฒ๐๐๐ผ๐ฟ๐ฑ๐: Full Stack Developer, Senior Software Engineer, Node.js, Python, FastAPI, React.js, Web Development, Mobile Development, Backend Development, Frontend Development, Full Stack Architecture, API Development, RESTful APIs, Microservices, Cloud Computing, AWS, Azure, Google Cloud, Docker, Kubernetes, CI/CD, Continuous Integration.
- API Development
- Node.js
- React
- Mobile App
- React Native
- Full-Stack Development
- JavaScript
- TypeScript
- React Bootstrap
- Web Application Development
- OpenAI API
- FastAPI
- Python
- MERN Stack
- SQL Programming
Patna, India
Hello, Iโm Raj Narayan Gupta, a Full Stack Developer with more than five years of experience in designing and developing modern web applications. I build fast, secure, and scalable solutions using .NET technologies and cloud platforms like Azure and AWS. I have a strong command over C#, ASP.NET Core, Blazor, and React, and I enjoy working on both backend and frontend parts of a project. My approach focuses on writing clean, maintainable code, optimizing performance, and ensuring smooth deployment through modern DevOps practices. Core Skills and Expertise ASP.NET Core MVC, Razor Pages, Blazor Microservices, CQRS, Repository Pattern, SignalR, RabbitMQ RESTful API development and third-party integrations React.js, TypeScript, JavaScript (ES6+), and responsive UI design SQL Server, MySQL, Entity Framework Core Azure App Services, AWS Elastic Beanstalk, Dokploy, CloudPanel, S3, and CI/CD pipelines What I Can Help You With Building new web applications from the ground up Refactoring or upgrading existing .NET projects Designing and integrating REST APIs Implementing authentication and authorization (JWT, OAuth, Identity) Database design, optimization, and migration Fixing bugs, improving performance, and maintaining reliability Why Work With Me I have a solid understanding of .NET architecture and full-stack development, allowing me to deliver solutions that are both scalable and efficient. My work is guided by attention to detail, clear communication, and a focus on client satisfaction. Iโm comfortable collaborating in agile environments and taking ownership of complete project lifecycles. If youโre looking for a developer who understands business goals as well as technology, Iโd be happy to help you bring your project to life. Letโs discuss how we can work together to build something great.
- .NET Core
- ASP.NET Core
- jQuery
- Node.js
- Hosting Setup
- Microsoft IIS
- C#
- Web API
- ASP.NET Web API
- Web Development
- NodeJS Framework
- Performance Optimization
- Full-Stack Development
- MERN Stack
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REST API Developers Hiring FAQs
If youโre new to APIs (application programming interfaces), it wonโt be long until you come across REST. Short for REpresentational State Transfer, REST is an architectural style for facilitating communication between computer systems across a network.
What is REST?
REST is an architectural style that describes how distributed applications should interact with one another. But to truly understand what REST is, you first need to understand two concepts:
- Resources, which are like the nouns of the webโthey describe the โthingsโ a client might want to pull from a server (e.g., the documents and files that make up a web page).
- HTTP verbs, which are the verbs of the webโthey describe the โactionsโ you can take on a resource, such as GET, POST, PUT, and DELETE.
REST provides a set of architectural constraints that, when applied as a whole, emphasizes scalability of component interactions, generality of interfaces, independent deployment of components, and intermediary components to reduce interaction latency, enforce security, and encapsulate legacy systems.
REST API developers use the REST architectural style to develop APIs that facilitate communication between computer systems across a network. REST stands for REpresentational State Transfer.
How do you hire a REST API developer?
You can source REST API developers talent on Upwork by following these three steps:
- Write a project description. Youโll want to determine your scope of work and the skills and requirements you are looking for in a REST API developers.
- Post it on Upwork. Once youโve written a project description, post it to Upwork. Simply follow the prompts to help you input the information you collected to scope out your project.
- Shortlist and interview REST API Developers. Once the proposals start coming in, create a shortlist of the professionals you want to interview.
Of these three steps, your project description is where you will determine your scope of work and the specific type of REST API developers you need to complete your project.
How much does it cost to hire a REST API developer?
Rates can vary due to many factors, including expertise and experience, location, and market conditions.
- An experienced REST API developers may command higher fees but also work faster, have more-specialized areas of expertise, and deliver higher-quality work.
- A contractor who is still in the process of building a client base may price their REST API developers services more competitively.
Which one is right for you will depend on the specifics of your project.
How do you write a REST API developer job post?
Your job post is your chance to describe your project scope, budget, and talent needs. Although you donโt need a full job description as you would when hiring an employee, aim to provide enough detail for a contractor to know if theyโre the right fit for the project.
Job post title
Create a simple title that describes exactly what youโre looking for. The idea is to target the keywords that your ideal candidate is likely to type into a job search bar to find your project. Here are some sample REST API developers job post titles:
- Need a software engineer experienced in developing RESTful APIs
- Seeking REST API developer for WordPress website
- REST API developers needed to develop API software integrations
Project description
An effective REST API developer job post should include:
- Scope of work: From programming to cloud computing, list all the deliverables youโll need.
- Project length: Your job post should indicate whether this is a smaller or larger project.
- Background: If you prefer experience with certain industries, software, or coding languages, mention this here.
- Budget: Set a budget and note your preference for hourly rates vs. fixed-price contracts.
REST API developer job responsibilities
Here are some examples of REST API developers job responsibilities:
- Develop RESTful, stateless, and layered applications that make client and server interoperable
- Manage repetitive data transfers with caching
- Create a uniform interface between components
REST API developer job requirements and qualifications
Be sure to include any requirements and qualifications youโre looking for in a REST API developers. Here are some examples:
- Proficiency in PHP, NodeJS, Python, Java, cURL, and/or C#
- Knowledge of data and servery security best practices
- Understanding of overall orchestration paradigms
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