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Munkhjin Nyamdorj
Verified Expert in Engineering
Full-stack Developer
Ulaanbaatar, Mongolia
Toptal member since August 24, 2022
Bio
Munkhjin is a seasoned full-stack engineer with a strong track record of building high-quality web applications. He specializes in AI-powered solutions and brings deep expertise in Next.js, scalable API architecture, and end-to-end product delivery. Over the past year, he has fully adopted agentic and vibe coding practices, accelerating his daily development workflow by 5-10x.
Portfolio
Mazaal AI
Next.js, Node.js, TypeScript, PostgreSQL, AWS IoT, Agile Software Development...
Ipsun Sunvoy
JavaScript, Node.js, React, MongoDB, Amazon Web Services (AWS), CSS, HTML...
Fibo Global
TypeScript, JavaScript, Go, OpenStack, Amazon Web Services (AWS), Node.js...
Experience
- Node.js - 7 years
- React - 6 years
- Docker - 6 years
- TypeScript - 6 years
- Next.js - 5 years
- APIs - 5 years
- Claude Code - 1 year
- AI Agents - 1 year
Work Experience
Lead Software Engineer
2023 - PRESENT
Mazaal AI
- Reworked most of the application interface and API designs to improve UI visuals, reduce unknown errors, and build AI training tools directly from the website.
- Rehauled the landing from scratch using Next.js to optimize performance and significantly improved SEO score.
- Led a successful product launch and negotiated a strategic subscription deal with major retail partners — effectively rolling out the red carpet and bringing top-tier clients into our ecosystem.
- Built workflow automation tools integrating 150+ applications to Mazaal AI.
- Developed a coding-capable AI agent with multi-platform chatbot integration, powered by a custom API, Retrieval-Augmented Generation (RAG) knowledge base, and advanced prompt engineering.
- Built an AI chat interface that delivers seamless tool calling, reasoning, and 3rd-party API integrations.
Technologies: Next.js, Node.js, TypeScript, PostgreSQL, AWS IoT, Agile Software Development, Vercel, Redux, Amazon Web Services (AWS), APIs, MongoDB, Tailwind CSS, Anthropic, OpenAI API, AI Agents, AI SDK, Claude Code, AI Tools, Shadcn, Python, Large Language Models (LLMs), Model Context Protocol (MCP), Generative Artificial Intelligence (GenAI), API Gateways, Data Mapping, Forms, API Integration, Stripe, Amazon S3 (AWS S3), CI/CD Pipelines, Azure, AI Integration, Cloud Infrastructure, Artificial Intelligence (AI), Back-end, Minimum Viable Product (MVP), Accessibility, Lighthouse, Webhooks, Full-stack Development, Deployment, NGINX, eCommerce, SQL, AI Automation, AI Research, Front-end, GitHub, GitHub Actions, Startups, Data Engineering, API Development, REST APIs
Full-stack Developer
2022 - 2023
Ipsun Sunvoy
- Developed blogs for landing pages and integrated various 3rd-party solar inverters and CRM APIs. Built a Puppeteer scraping tool for scraping data using hidden APIs and taking beautiful screenshots for monthly email reports.
- Tracked and fixed a lot of issues within the web application. Added unit tests to the existing codebase. Improved existing functionalities and performance.
- Helped build an excellent tool for solar installers, making managing customers and their solar inverters easier.
Technologies: JavaScript, Node.js, React, MongoDB, Amazon Web Services (AWS), CSS, HTML, MongoDB Atlas, Agile Software Development, Vercel, Redux, APIs, Tailwind CSS, Large Language Models (LLMs), Data Mapping, Forms, API Integration, Stripe, Amazon S3 (AWS S3), Vite, CI/CD Pipelines, AI Integration, Cloud Infrastructure, Artificial Intelligence (AI), Back-end, Accessibility, Lighthouse, Webhooks, Full-stack Development, Deployment, NGINX, SQL, Front-end, GitHub, GitHub Actions, Startups, Data Engineering, NestJS, tRPC, API Development, REST APIs
Mid-level Full-stack Developer
2021 - 2023
Fibo Global
- Worked with a development team that built a cloud infrastructure service used by most Mongolian tech companies.
- Developed a paid tech blog posting website. Paid authors for writing good tech articles.
- Built a project management tool that tracks projects, tasks, and hours (internal company use).
- Renovated the old landing pages and updated them to a new design.
Technologies: TypeScript, JavaScript, Go, OpenStack, Amazon Web Services (AWS), Node.js, React, Next.js, AWS IoT, MongoDB Atlas, Agile Software Development, Vercel, Redux, APIs, MongoDB, Tailwind CSS, Python, AWS Lambda, FastAPI, Data Mapping, Forms, API Integration, Stripe, Amazon S3 (AWS S3), Vite, CI/CD Pipelines, Cloud Infrastructure, Back-end, Minimum Viable Product (MVP), Accessibility, Lighthouse, Webhooks, Full-stack Development, Deployment, NGINX, SQL, Front-end, GitHub, GitHub Actions, Startups, Data Engineering, NestJS, tRPC, API Development, REST APIs
Full-stack Developer
2021 - 2022
Trap.mn
- Developed a web service that reports security threats and attacks to the cloud server.
- Built a reporting summary exporter tool that collects data from logs and exports it to a CSV file.
- Created a back office section for managing subscriptions for current users.
Technologies: React, Material UI, TypeScript, Node.js, Prisma, PostgreSQL, AWS IoT, Agile Software Development, Vercel, Redux, Amazon Web Services (AWS), APIs, MongoDB, Tailwind CSS, Data Mapping, Forms, API Integration, Vite, CI/CD Pipelines, Cloud Infrastructure, Back-end, Minimum Viable Product (MVP), Full-stack Development, SQL, Front-end, GitHub, Startups, API Development, REST APIs
Full-stack Developer
2020 - 2020
Freelance Client
- Developed an eCommerce website for furniture selling using React, Express.js, and MySQL for the database.
- Helped senior undergrad students to deploy React with a Node.js project on the cloud server.
- Worked with a small team of three people. Gained a lot of valuable experience through the eCommerce project.
Technologies: React, Express.js, Node.js, MySQL, Agile Software Development, APIs, Python, AWS Lambda, Forms, API Integration, Back-end, Minimum Viable Product (MVP), SQL, Front-end, GitHub, Startups, API Development, REST APIs
Entry-level Front-end Engineer
2019 - 2019
Erxes INC
- Took from tasks from a front-end engineer to fix layouts in CSS and React.
- Fixed a small portion of developer documentation websites.
- Wrote snapshot unit tests for TypeScript and React components in Jest.
Technologies: React, Jest, Docusaurus, Agile Software Development, APIs, Forms, API Integration, Back-end, Front-end, GitHub, Startups, API Development, REST APIs
Experience
Automatic Crypto Trading Bot
https://github.com/nyamkamunhjin/binancebot.gitBuilt an API to trade crypto by connecting TradingView signals with Binance API. TradingView alert sends a webhook alert to the API and then executes a trade of a selected pair of coins on Binance futures trading. I also set it up to connect to a discord bot to track the progress of current trades, the balance, and profit & loss (P&L) through bot commands.
Puck Finance
Puck Finance is an advanced AI-powered crypto trading automation platform designed for traders seeking efficiency and precision in volatile markets. It delivers a fully-fledged automated trading system that executes strategies 24/7 across major cryptocurrencies, handling entries, exits, and portfolio management with speed and accuracy.
Convex Agentic Support Automation
https://con-vex.co/This is my side project. Convex AI (con-vex.co) is a next-generation AI-powered messenger platform that delivers intelligent, automated customer service for modern businesses.
By unifying Facebook Messenger, Instagram, Viber, and other popular channels into a single inbox, Convex AI enables companies to manage all conversations from one place while dramatically reducing response times and operational costs.
By unifying Facebook Messenger, Instagram, Viber, and other popular channels into a single inbox, Convex AI enables companies to manage all conversations from one place while dramatically reducing response times and operational costs.
Education
2016 - 2020
Bachelor's Degree in Computer Science
National University of Mongolia - Ulaanbaatar, Mongolia
Certifications
APRIL 2022 - PRESENT
Certified Blockchain Expert
Blockchain Council
JULY 2021 - JULY 2024
AWS Certified Solutions Architect
Amazon Web Services (AWS)
Skills
Libraries/APIs
React, Node.js, Binance API, OpenAI API, API Development, REST APIs, Stripe, Jenkins Pipeline
Tools
Git, Prisma, MongoDB Atlas, Claude Code, Shadcn, Lighthouse, NGINX, GitHub, AI SDK
Languages
TypeScript, JavaScript, HTML, CSS, Pine Script, SQL, Go, Python, Solidity
Frameworks
Tailwind CSS, Express.js, Next.js, NestJS, Material UI, Redux, tRPC, Jest, Docusaurus, Hardhat, Alchemy
Paradigms
Model Context Protocol (MCP), Agile Software Development
Platforms
Amazon Web Services (AWS), Linux, Vercel, Docker, Blockchain, AWS Lambda, Azure, OpenStack, AWS IoT
Storage
MySQL, PostgreSQL, MongoDB, Amazon S3 (AWS S3)
Other
Software Development, Web Development, TradingView, APIs, Anthropic, Large Language Models (LLMs), AI Agents, AI Tools, Agentic AI, API Gateways, Data Mapping, Forms, API Integration, Supabase, Vite, CI/CD Pipelines, AI Integration, Cloud Infrastructure, Artificial Intelligence (AI), Prompt Engineering, Back-end, Minimum Viable Product (MVP), Webhooks, Full-stack Development, Deployment, Front-end, GitHub Actions, Startups, Data Science, Crypto, FastAPI, Generative Artificial Intelligence (GenAI), Accessibility, eCommerce, AI Automation, AI Research, Data Engineering, Machine Learning, Discord Bots, Software Architecture
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