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Top freelance API Integration developers available to hire
Freelance API Integration Developer5.0 (57 reviews)
Seasoned Web Developer and Blockchain enthusiast with a proven track record in the IT and services industry. Expertise in Research, PHP, HTML, JavaScript, and Blockchain development, including Smart Contracts. Skilled in automation, application testing, and cybersecurity analysis for web and mobile apps.
Freelance API Integration Developer5.0 (9 reviews)
Senior BI/Data Analytics Consultant, a committed software engineer who seeks to develop elegant solutions to business challenges. My driving force is the passion that pushes me to seek new heights and keep learning the latest ideas, platforms, frameworks, tools, and best practices.
I believe in a world of personal and professional growth for all of us and in this spirit, I am always ready to learn and offer to share my expertise as a mentor and a Codementor.
Freelance API Integration Developer4.9 (120 reviews)
As a software developer with 8 years of experience, I am captivated by programming paradigms and the best practices for designing and implementing software architectures.
**I'm happy to offer a 10-minute free session to look at your current work if any exist. This will help us see if I can solve your problem before you pay for a session. This way, I'll better understand what you need and can help you more effectively.**
Let's collaborate to create impactful solutions.
Freelance API Integration Developer5.0 (26 reviews)
Is your AI-powered MVP built on a fragile 'vibe-coded' foundation? Are you struggling to scale a prototype that was built with lightning speed but is now plagued by bugs, security holes, and technical debt?
I transform brittle AI prototypes into robust, **production-ready applications**. As a senior AI engineer specializing in the **Node.js** and **React** ecosystem, I bridge the gap between rapid, AI-assisted development and the disciplined engineering required for scalable, secure software.
But robust software is only half the battle. The other half is making it *work for your business*. I design and implement **intelligent automation workflows** that connect your apps, eliminate manual tasks, and free up your team to focus on high-impact work.
Whether you need to rescue a failing project, automate a core business process, or build a scalable MVP from the ground up, I provide the expert oversight to ensure your AI initiatives deliver real, measurable value.
**My Core Services:**
* **🤖 AI Code Rescue & Remediation:** I conduct deep **AI code audits** to debug, refactor, and secure fragile codebases (especially those built with LangChain.js). I turn unmaintainable prototypes into stable, scalable assets ready for real users.
* **⚙️ Intelligent Workflow Automation & Integration:** I design and build digital assembly lines for your business. I offer a full spectrum of automation solutions:
* **Rapid Integration:** Using **Zapier, Make.com & n8n** to connect your existing tools and solve immediate process bottlenecks.
* **Custom API Development:** Building custom **Node.js** APIs and webhooks to connect proprietary systems or handle complex logic that no-code tools can't.
* **AI-Powered Decisions:** Infusing your workflows with intelligence using the **OpenAI API** to triage support tickets, qualify sales leads, or generate content automatically.
* **🚀 Custom AI Solution Development:** I architect and build bespoke AI solutions from scratch, from **Custom GPTs** and intelligent **AI Agents** to complex RAG (Retrieval-Augmented Generation) pipelines that leverage your private data.
* **👨🏫 AI Engineer & Career Mentorship:** I provide 1-on-1 coaching to help developers navigate the AI landscape, master tools like LangChain.js, and build a successful career in AI engineering and automation.
**My Tech Stack:**
* **Languages:** Node.js, TypeScript, JavaScript
* **Frameworks:** React, Next.js, Express.js, NestJS
* **AI / LLM:** LangChain.js, OpenAI API, LlamaIndex, Vector Databases (Pinecone, Qdrant)
* **Automation Platforms:** Zapier, Make.com, n8n
Ready to move past the prototype phase and build a real business? **Send me a message with your project details or book a session to get started.**
---
### Service Packages
* **Package 1: AI Code Audit & Production-Ready Roadmap**
* **Description:** Have an AI-generated MVP that feels unstable? I'll perform a comprehensive review of your codebase. You'll receive a detailed report identifying security vulnerabilities, performance bottlenecks, and a concrete, actionable roadmap to make your application **production-ready**. This is the perfect first step to de-risk your project.
* **Package 2: Intelligent Automation Workflow**
* **Description:** Let's put a core business process on autopilot. We'll map out a high-impact workflow and I'll build a robust automation to solve it. Ideal for **automating lead qualification**, **triaging customer support tickets**, or **streamlining content pipelines** using the best tool for the job—Zapier, Make, or custom Node.js scripts.
* **Package 3: Scalable AI MVP Development**
* **Description:** Need to build an MVP the *right* way? I'll architect and develop a **scalable MVP** from day one, using professional, spec-driven development practices. We'll build a strong foundation with clean, documented code and a modern stack (Node.js, React) to avoid the technical debt that plagues "vibe-coded" projects.
* 15+ years of experience in software development.
* 7 years of building apps with NodeJS, React and Angular.
* 5 years of hands-on work with cloud-based.
* Solid background in computer science and software development.
* Proficient in important practices like Clean Code, Refactoring, Test Automation, and CI/CD.
* Exceptional at solving problems and learning new technologies quickly.
I have an owner mindset and create software for companies and non-profit institutions to automate work processes and provide a better experience to their team, clients, and associates.
Since 2017, I am focused on Process Modeling, New Products Development, Process Automation, and Software crafting using Ruby and Python. I also work with relational and NoSQL databases and I am studying map/reduce data solutions.
I enjoy creating aid tools to fasten software development, as well as refactoring existing code.
My experience In a Nutshell, since 2002:
\- Entrepreneur/Ownership mindset, since day one.
\- Worked alone as a contractor/consultant or as part of a team in permanent roles.
\- Conducted projects from ideation to deployment and maintenance.
\- Good communication and problem-solving skills.
\- Good at Interacting with users and stakeholders.
\- Experienced in all the SDLC steps.
\- Coded using Delphi, Java, C, ShellScript, Php, Javascript, Groovy, Python and Ruby.
\- Managed SQL and NoSQL databases.
Freelance API Integration Developer5.0 (4 reviews)
I do it all, I do iOS (swift and Obj C) , Android (Kotlin and Java), front end (I use my own JS framework, although I know vue or react), and Node Js for my back end, I prefer MongoDB, but I can use SQL like Postgres, Been programming for nearly 20 years so I know the ups and downs. I have clone Uber, Twitter , Tinder and other major apps for clients, like "tinder for job matching between employers and candidates".
Freelance API Integration Developer5.0 (1 reviews)
Software Developer with over 6 years of experience specializing in back-end engineering. Proven ability to design and build resilient, scalable micro-services using Java, Spring Framework, and cloud-native technologies. Consistently delivers high-performance software that enhances user experience and drives operational efficiency. Open to new challenges in Software Engineering roles.
Freelance API Integration Developer5.0 (10 reviews)
Building software has always been a passion of mine. This is still true after almost 15 years of experience in various environments and business sectors. I've never really considered it work but "problems to solve". Yes, I love puzzles or anything that requires you to turn your head around.
Passion also means curiosity and hunger for knowledge. I regularly read blogs, articles, and books and practice katas by myself. Some of my favourite authors are Robert C. Martin (aka Uncle Bob) and Mark Seemann. Continuous improvement is a mindset I consider essential.
If I had to pick one priority when building a product, I would choose quality. This has always been what I put first. I'm not satisfied when "It Works", it must also be done well.
I always tried to improve the team I joined wherever I've been. Whether by providing experience, a fresh eye, ideas, or mentoring younger peers.
About mentoring, sharing knowledge represents a key aspect of my participation in a team. I do believe that knowledge is useless if you keep it to yourself. We need to use our knowledge to teach and inspire others, the same way others have inspired us.
Putting this all together, it’s quite clear I advocate Software Craftsmanship. Hearing about this ideology for the first time has been one of the biggest milestones in my career. It is the perfect match for what I consider important in terms of mindset. Since then, I’ve continuously tried to spread the ideology by sharing ideas and methodologies.
Feel free to take a look at my GitHub account: https://github.com/Tr00d
You'll find katas I do for fun or coaching purposes, but you'll mostly see how I code.
Freelance API Integration Developer5.0 (7 reviews)
Lifelong coder, experienced Rails engineer (since Rails 1.0), degrees from MIT and Stanford. Founder at ScrumNinja and Internaut Design. Expert communicator. Knows best-practices of industry. I am also an expert in audio signal processing.
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Frequently asked questions
How long do API Integration projects normally take?
The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance API Integration project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance API Integration request on Codementor, check out our article.
How much does it cost to hire a freelance API Integration developer?
We don’t charge anything when you post a freelance hiring request for API Integration developers! You’ll have the chance to determine what the budget for your project is when you post the request. You’ll only need to pay the developer if you’re 100% satisfied with their work. Please know that Codementor charges a small service fee when a developer completes the job.
What makes Codementor API Integration developers different?
We do a comprehensive technical and communications screen of all API Integration developers at Codementor. Our network includes book authors, popular open source contributors, top Stack Overflow users and engineers at top tech companies. In addition, to continually ensure the quality of our freelancers, we regularly check in on existing API Integration developers’ user satisfaction rates.
What happens if I’m not happy with the freelancer’s work?
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