Find top freelance API developers quickly and easily on Codementor. Work with our vetted developers who have the proven skills and experience to get the job done. Get help with projects by-the-hour or long-term. Hire a trusted API freelancer on Codementor today.
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.
**Laleet** is a seasoned software engineer with over 8 years of experience in modern web and backend development. He specializes in building, scaling, and supporting high-performance applications using **React**, **Next.js**, **Angular**, **NestJS**, and **Express.js**.
⏱ MY WORK HOURS : 7AM to 11 PM INDIAN STANDARD TIME . 16 HOURS A DAY :)
I’m a senior full-stack developer with 19+ years of real-world experience delivering scalable web and mobile solutions across industries. I work end-to-end—from architecture and development to optimization, security, and deployment.
💻 Web Technologies
PYTHON , CORE JAVA , ASP.NET
PHP Ecosystem: WordPress, Magento, Shopify, OpenCart, Joomla, OsCommerce
Frameworks: Laravel, CakePHP, CodeIgniter, Yii
Frontend: JavaScript, Angular, React
Backend: Node.js, Python (Flask, Django)
📱 Mobile & Cross-Platform
React Native
FlutterFlow
API-driven mobile app backends
🤖 Advanced Skills
AI & third-party API integrations
Payment gateway integrations
SEO, speed optimization & performance tuning
Malware removal & security hardening
VB Macros & automation solutions
⚡ Strengths: Fast delivery, clear communication, production-ready solutions
👥 Team Support: Backed by a 10-member team (2 designers + 8 developers) for large-scale and long-term projects
I don’t just write code—I solve problems, mentor developers, and deliver results. If you need reliable guidance or hands-on execution across web, mobile, or AI-powered systems, I’m here to help.
Faster delivery and 24/7 communication are my greatest plus.
I have a great passion for solving problems and can help people with various programming languages, databases, information systems, software related projects.
American (native English speaker) living abroad.
I teach people how to get projects built fast and become successful developers 🔥.
I don't compete on price, but I do compete on quality, speed of training, and lack of a language barrier 🙂
**Free Resources**
▶️ I have a growing [YouTube channel](https://www.youtube.com/channel/UCPsi8tNv7UuNRljOTK5sl4A) where I cover popular requests I get.
**Why Work With Me?**
⭐ More than 250+ 5 Star Reviews (see my [Wyzant profile](https://www.wyzant.com/match/tutor/87903194) too)
🗽 Native English speaker
✅ EXTREMELY responsive (from 10am to 10pm Portugal time)
💰 Successfully started and improved software dev careers for multiple clients.
⚪ Able to communicate complex topics simply
❤️🔥 Burning passion for coding and teaching
👁️ Can provide Process Maps for visual learners
**Refund Policy**
💸 If I'm unable to help, you get a full refund. Easy 🙂
**Backstory**
I started programming in 2018 after my mentor told me that it really fits the way I think.
Before I started I was learning marketing, working in Facebook Ads and Shopify Stores (with Google Analytics, VWO, and other website optimization softwares), I was more interested in automation, and building to do tasks only once.
I started at first learning Python for automation (which is still my primary language and what I really enjoy coding in). Eventually, I learned that by itself, Python isn't that sharable if you want other non-coders to use the my apps, so I grew my way into web development, diving deep into Django, HTML & CSS, building multiple sites with only those to get experience, for example:
- My website: https://www.zackplauche.com/
- A mini app I built: https://www.dollarperhourcalculator.com
And more :)
Then eventually learning JavaScript and the Vue.js framework to take my websites, designs, and User Experiences to the next level, building at first simple apps like my DollarPerHour Calculator (https://zackplauche.github.io/DollarPerHourCalculator/), and more advanced ones, like the current one I'm developing (still in progress, but it's the biggest app I've ever build, using both Vue.js and Django).
I've been teaching programming since 2019, and my students have loved me. I have students I work with that have been working with me weekly since I first started (more than 5 years now!). They helped me keep both my coding and teaching career sustainable as I was helping them with their issues, training them to be effective developers, starting my own software agency, and building my own apps.
I'm extremely grateful to my students and truly care about and do my best to support their success in whatever their endeavors.
I don't just write code — I **define the architecture**. For over two decades I've been the person CTOs and lead developers call when a system is *failing under load*, a migration is at risk, or an AI integration needs to be done **right the first time**.
With **21 years** of hands-on architecture experience, I specialize in **C#, .NET, Blazor, ASP.NET Core, SQL, Python**, and AI agents built with **Semantic Kernel, LangGraph, and custom tool-calling pipelines**. I design and deliver systems where performance, reliability, and intelligent automation aren't optional — they're the baseline. I've helped teams migrate from legacy .NET Framework to .NET 8, integrate AI into production pipelines, and recover systems failing under scale — without full rewrites.
I've shipped AI to **production** — not to a Jupyter notebook. I'm the creator of **FreeAIVoice** — a live AI voice platform with AI Voice Generation, Voice Cloning, and Speech-to-Text across **30+ spoken languages** and a developer API. I provided production systems for The New York Times.
---
**Here's where I'm most useful to you:**
- **The AI Integration Trap** — You've been asked to add AI to your existing .NET system but don't know whether to use *Semantic Kernel*, raw OpenAI APIs, or a Python sidecar. I've made that decision dozens of times. I'll make it faster and safer for you.
- **The Blazor Bottleneck** — Your Blazor app is slow, state management is tangled, and you're unsure if you chose *Server or WASM* incorrectly. I can diagnose what went wrong and map a clean path forward — often in a single session.
- **The Legacy Modernization Cliff** — You have a 10-year-old .NET system that needs AI or modern tooling but wasn't designed for it. I specialize in *incremental refactoring paths* that don't require a full rewrite and don't break what's already working.
---
**What I Do Best:**
- **Software Architecture & System Design** — scalable, maintainable systems from greenfield to enterprise
- **AI Agent Development** — production-grade agents with Semantic Kernel, LangGraph & AutoGen — *not demos*
- **Blazor & ASP.NET Core** — Server, WASM, hybrid — full-cycle development and performance tuning
- **Python & AI Automation** — RAG pipelines, workflow automation, voice AI, LLM integrations
- **Legacy .NET Modernization** — refactoring strategy, migration paths, incremental upgrades
- **Architecture Audits** — identifying structural risk before it becomes a production incident, not after
- **Debugging Complex Systems** — when the stack trace doesn't tell the whole story
**If any of this sounds like your current situation — DM me. I respond to every message.**
Experienced Software Engineer with 7 years of professional experience in mobile and web application development, architecture design, and technical leadership. Proven track record of delivering high-quality software applications, leading teams, and mentoring developers to adopt best practices and delivering on time.
Skilled in modern development frameworks, and emerging technologies such as Apple Vision, DockKit, AI Integrations to build immersive and adaptive app experiences. Strong full-stack capabilities with expertise in backend systems, RESTful APIs, cloud services, and cross-platform integrations. Experience with collaborating with clients internationally for complex projects, and ensuring scalable and maintainable software solutions.
Please send me a message or schedule a session before connecting for a call.
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.
Full-Stack Web Developer with 10+ years delivering production web applications for product teams and client-facing platforms. Strong frontend experience with React and TypeScript, paired with backend development in Python for API-driven systems and data-heavy workflows. Experienced in integrating third-party services, designing REST APIs, and building reliable data-driven platforms. Comfortable deploying and operating applications on AWS, working with containerized environments, CI/CD pipelines, and cloud infrastructure to ensure scalable and maintainable production systems. Proven track record of shipping maintainable features in remote teams and improving reliability through clean code, automated validation, and pragmatic DevOps practices.
Developer with 10 years of hands-on experience and nearly 6 in professional roles. I work across the stack and usually work in C, Go, Python, C#, Java, Kotlin, JavaScript, and TypeScript — with a strong preference for C and systems-level work. I enjoy helping others build a solid understanding of fundamentals instead of just getting them unstuck.
How to hire a freelance API developer on Codementor
STEP 1
Post a API request
We'll share your request with freelancers with relevant API skills and expertise.
STEP 2
Review & chat with API freelancers
Use our messaging feature to instantly chat with freelance API developers around the world.
STEP 3
Hire the best API freelancer
Choose the best freelance API developer that meets your needs.
Frequently asked questions
How long do API 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 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 request on Codementor, check out our article.
How much does it cost to hire a freelance API developer?
We don’t charge anything when you post a freelance hiring request for API 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 developers different?
We do a comprehensive technical and communications screen of all API 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 developers’ user satisfaction rates.
What happens if I’m not happy with the freelancer’s work?
As a platform, we strive to ensure you’re always happy with your API project’s results. If you’re unsatisfied with the results, you can choose to get a refund for the project. Additionally, you can contact our support team should you need any further assistance with your project.
For more answers to frequently asked questions, see here.