Hi, I’m Tuguldur 👋

I am a Senior Full-Stack Engineer specializing in building scalable, production-ready web applications. My core expertise lies in crafting bulletproof frontends with Next.js 16 (utilizing Feature-Sliced Design) and robust backends with NestJS (following Clean Architecture principals).

I don't just write code; I design systems that help businesses scale, reduce technical debt, and achieve fast time-to-market.

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🛠️ Tech Stack & Architecture Philosophy

I advocate for maintainable, decoupled architectures, comprehensive testing, and modern developer tooling.

• Frontend: React, Next.js 16 (App Router), TypeScript, Tailwind CSS v4, TanStack Query/Table, shadcn/ui.
• Backend: Node.js, NestJS, Express, REST APIs, Microservices, Role-Based Access Control (RBAC).
• Database & Caching: MySQL, PostgreSQL, Prisma, TypeORM, Redis (Caching, Token Blacklisting, Rate Limiting).
• DevOps & Tools: Git/GitHub Actions (CI/CD), Docker, Docker Compose, Playwright (E2E Testing), Jest.

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🚀 Featured Production Templates

Here are my recent open-source production-ready boilerplates showcasing enterprise-level engineering:

⚡ Next.js 16 Admin Dashboard Template

• Architecture: Strictly adheres to Feature-Sliced Design (FSD) to prevent codebase rot in large applications.
• Key Features: Full-scale Role-Based Access Control (RBAC) UI, URL-driven advanced tables (TanStack Table v8), global caching (TanStack Query v5), and dynamic sheet-based UX configurations using shadcn/ui and Tailwind v4.
• Quality Assurance: Pre-configured with Playwright for End-to-End (E2E) testing and automated GitHub Actions CI.

🛡️ NestJS Clean Architecture REST API

• Architecture: Implements strict layered Clean Architecture (Presentation ➔ Application ➔ Domain 🡨 Infrastructure) ensuring zero database/framework lock-in.
• Key Features: Advanced authentication via JWT refresh rotation, stateful RBAC with high-performance Redis permissions caching, and enterprise-grade security structures.
• Quality Assurance: Achieves ~98% test coverage across domain and application layers using Jest.

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💼 What I Bring to Your Team

• Scalability from Day One: I write production-ready boilerplate architectures that allow engineering teams to scale features infinitely without compounding complexity.
• Performance Optimization: Expertise in database indexing, caching strategies (Redis), and frontend server-side rendering metrics.
• Clean & Deterministic Code: Strong discipline in commit history, thorough documentation (Swagger/OpenAPI), and strict code decoupling.
• Fast Delivery under NDA: Experienced in building complex fintech, dashboard, and marketing ecosystems under strict NDA guidelines.

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📫 Let's Connect

If you're reviewing my profile for a project or general collaboration, let's talk architecture, scalability, or your product roadmap:

• 💼 Upwork: Hire Me on Upwork
• 🔗 LinkedIn: Connect on LinkedIn
• 📍 Location: Ulaanbaatar, Mongolia (Available for global remote contracts)