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Production Next.js App Router & Server Actions
Structuring high-performance full-stack applications with Next.js App Router, streaming SSR, parallel routes, and type-safe server actions.
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Engineering products that feel effortless.
©2026
NAYON
Next.js
React
React Native
Expo
TypeScript
NestJS
Node.js
Express.js
MongoDB
PostgreSQL
Tailwind CSS
Redux
Docker
Git
GitLab
AWS
Postman
Figma
Next.js
React
React Native
Expo
TypeScript
NestJS
Node.js
Express.js
MongoDB
PostgreSQL
Tailwind CSS
Redux
Docker
Git
GitLab
AWS
Postman
Figma
My impact through engineering and design
I build scalable web and mobile applications with a focus on performance, clean architecture, and thoughtful user experience. Currently crafting full-stack solutions with React, Next.js, Node.js, and React Native for clients around the world.
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Powerful engineering services for your product
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localhost:3000 — compiled in 42ms
Full Stack Web AppsProduction-ready Next.js and React web applications built with type-safe server actions, responsive layouts, and sub-100ms hydration.
Mobile App DevelopmentCross-platform iOS and Android mobile apps engineered in React Native and Expo with 60fps gestures, offline map caching, and biometrics.
Backend & API ArchitectureHigh-throughput microservices, WebSocket event pipelines, and REST APIs built in Node.js, Express, and NestJS with strict RBAC security.
Database Design & SyncOptimized document and relational schemas in MongoDB and PostgreSQL, featuring complex aggregation pipelines and Redis caching.
AI Integration & AutomationSeamless integration of LLM APIs, conversational agents, and automated workflows into existing web and mobile products.
UI/UX & Design SystemsModern atomic design systems, interactive prototypes in Figma, and custom design tokens implemented with Tailwind CSS and Radix primitives.
My projects.
A selection of work spanning full-stack web platforms, mobile apps, and distributed systems — each built end to end, from architecture through interface.
→Problem solving against the clock
Contest practice and algorithmic problem solving is where the systems instinct comes from — having solved 100+ challenges on HackerRank and competitive platforms, reaching for the right data structure before writing the first line.
A process that makes the outcome predictable
From initial ambiguity to production-grade resilience — every project follows a disciplined, type-safe development lifecycle.
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Understand
Understanding requirements, system constraints, and user workflows through deep research before writing code.
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Architect
Designing scalable database schemas, type-safe API contracts, and clean component hierarchies.
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Build
Engineering performant web and mobile applications with clean architecture, fast hydration, and fluid animations.
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Refine
Rigorous testing, performance profiling, and iterative refinement to ensure rock-solid production quality.
Purpose-driven work for modern companies
January 2025 — Present
Software Engineer
Architected and delivered scalable full-stack features using Next.js, Node.js, Express.js, PostgreSQL, and MongoDB, reducing page load times by 30% through server-side rendering and API optimization.
Designed and maintained secure RESTful APIs serving 10,000+ requests/day; implemented Redux Toolkit and RTK Query for predictable, performant state management.
Collaborated directly with international clients across multiple time zones to gather requirements, present technical solutions, and iteratively deliver features aligned with business objectives.
Improved SEO scores by 40% through structured metadata, Next.js SSR, web accessibility enhancements, increasing organic traffic.
Established Git-based code review workflows and agile practices, reducing bug escape rate and accelerating release cycles.
March 2024 — December 2024
Junior Software Engineer
Built and maintained production web applications using React.js, Next.js, Node.js, Express.js, and MongoDB, supporting 5,000+ active users.
Designed and integrated RESTful APIs enabling seamless communication between frontend and backend, reducing integration issues by 25%.
Diagnosed and resolved critical performance bottlenecks, cutting average API response time by 35%.
Participated in full SDLC: requirements analysis, development, code review, testing, and deployment via Git-based CI/CD workflows.
September 2023 - December 2023
Software Engineer Intern
Developed and maintained web applications.
Assisted with frontend, backend, and API development.
Debugged and tested software features.
Worked with Git, databases, and development tools.
Collaborated with development team on real-world projects.
Applied academic knowledge to practical software development.
2019 — 2023
Bachelor of Science in Computer Science and Engineering
Major in Software Engineering with rigorous coursework in Data Structures, Algorithms, Database Systems, Web Development, and Software Engineering.
HackerRank 5-Star Certified problem solver in C, SQL, Problem Solving, and React.
Completed advanced training in React.js, Node.js, and full-stack application development.
Active open-source contributor and leader on engineering design projects.
Words from the people I build for
Clear communication, honest estimates, and working builds at every milestone — the things people actually remember afterwards.
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Engineering Lead
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“Nayon built our cross-platform mobile app with incredible attention to detail. The offline map sync and fluid 60fps animations made it feel truly native on both iOS and Android.”
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“His deep expertise in Next.js and REST API optimization transformed our product. He shipped modular, type-safe code that our team could immediately maintain and scale.”
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Founder & CEO
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Product Manager
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“Exceptional full-stack developer who understands both interface design and backend reliability. Clean architecture, transparent communication, and reliable delivery.”
★★★★★
“Nayon designed and built our database schema and API endpoints from scratch. Zero downtime, fast query performance, and excellent documentation throughout.”
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Technical Director
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Engineering Lead
★★★★★
“Nayon built our cross-platform mobile app with incredible attention to detail. The offline map sync and fluid 60fps animations made it feel truly native on both iOS and Android.”
★★★★★
“His deep expertise in Next.js and REST API optimization transformed our product. He shipped modular, type-safe code that our team could immediately maintain and scale.”
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Founder & CEO
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Product Manager
★★★★★
“Exceptional full-stack developer who understands both interface design and backend reliability. Clean architecture, transparent communication, and reliable delivery.”
★★★★★
“Nayon designed and built our database schema and API endpoints from scratch. Zero downtime, fast query performance, and excellent documentation throughout.”
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Technical Director
Documentation I write
Reference material, architecture notes and guides — written to be read by whoever picks the project up next.
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Offline-First Mobile Apps with Expo & Zustand
Architecting resilient cross-platform mobile apps with local cache persistence, background sync mechanics, and fluid 60fps gesture animations.
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High-Throughput Node.js & Express REST APIs
Building enterprise-ready REST microservices with modular middleware pipelines, JWT refresh token rotation, and strict RBAC guards.
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Advanced MongoDB Aggregation & Indexing
Designing complex aggregation pipelines for real-time analytics, compound indexes for fast query execution, and schema optimization patterns.
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Real-Time Media & WebRTC Audio/Video Mesh
Peer-to-peer audio/video streaming, low-latency room signaling over WebSockets, and state broadcasting under concurrent user loads.
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Design Tokens to Code with Tailwind CSS & shadcn/ui
Bridging Figma design variables into production code with Tailwind design tokens, Radix UI headless primitives, and responsive layout patterns.
Frequent questions
Anything not covered here? Send it over — I answer every message personally.
Full-stack web applications in Next.js and React, cross-platform mobile apps in React Native and Expo, and scalable Node.js/Express backend APIs with MongoDB or PostgreSQL.
Clear milestones, continuous Git commits, weekly sync calls, and live staging previews so you always see working progress before final deployment.
Yes. I build unified multi-platform products sharing business logic, API schemas, and design token consistency across web (Next.js) and mobile (React Native).
Drop a message through the contact form or email nrbnayon@gmail.com with your project overview, timeline, and goals. I'll get back to you with a detailed scope.
Reach out to me
Tell me what you're building and I'll come back with an honest read on scope, timeline, and whether I'm the right fit.
Let's create together
Refined through feedback and testing to make sure the result holds up for the people who actually use it.