Tien Nguyen

Senior AI-Native Full Stack Engineer · Hanoi, Vietnam

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AI-native full stack engineer with 10+ years shipping products end-to-end across backend (Golang, Node.js/NestJS, Python, Rust) and frontend (React, Next.js, TypeScript).

Daily practitioner of AI-assisted development (Claude Code, Cursor) with a spec-driven workflow, translating ambiguous product requirements into detailed specs, working prototypes, and production implementations in days rather than weeks. I've built and operated LLM-powered products (an AI agent platform, agentic developer tooling, RAG pipelines) alongside B2B back-office systems including enterprise HRIS/payroll and workforce-management SaaS.

Two-time co-founder with a strong product mindset, experienced partnering with Product Owners and domain stakeholders in distributed, multinational Agile teams.

Experience

  1. Workforce Optimizer Pte Ltd

    Apr 2025 - Present

    Senior Software Engineer (Remote)

    B2B Workforce Management SaaS · Singapore

    Migrated a production shift-rostering service from Java/Kotlin to Rust (Axum, Redis, Docker), improving performance and memory safety for enterprise HR workloads while preserving backward compatibility.

  2. NerdLabs

    Jun 2023 - Apr 2025

    Senior Full Stack Developer & Technical Lead

    Product projects

    Led and built across products: Nerd GPT AI agent platform, a Go low-latency arbitrage engine, iLoop Finance (NestJS), the ChainZoom Chrome extension, and NerdBot analytics serving 200K+ users.

  3. Nearlend DAO

    May 2022 - Jun 2023

    Senior Full Stack Developer (Remote)

    NEAR Blockchain

    Developed lending and borrowing smart contracts in Rust, including an NFT lending feature, and set up CI/CD pipelines for automated builds, testing, and deployments.

  4. Freelancer

    Sep 2021 - May 2022

    Full Stack Developer

    Various Client Projects

    Delivered full-stack web applications with TypeScript, React, and Node.js, working in Agile sprints with rapid, iterative delivery.

  5. Cross-Border E-commerce Venture

    Dec 2016 - Dec 2021

    Co-founder & Technical Lead

    E-commerce Platform

    Co-founded and ran a cross-border e-commerce business end-to-end, leading web development, order management systems, payment integrations, and infrastructure.

  6. CityMe Vietnam JSC

    Feb 2016 - Nov 2016

    Full Stack Developer & Co-founder

    Local Discovery Platform

    Built the business-manager site for a local food-discovery platform (React, Node.js, MongoDB) and partnered with the Product Owner to shape roadmap and priorities.

  7. GOSEI Vietnam JSC

    Oct 2013 - Feb 2016

    Technical Lead

    Enterprise HRIS Payroll System

    Led a 5-person team building an enterprise payroll system (C#/.NET, MS SQL Server), reducing processing time by 60% through algorithm optimization.

  8. USOL Vietnam Ltd., Co

    Aug 2011 - Oct 2013

    Fullstack Developer

    Enterprise Solutions for Japanese Clients

    Developed desktop and web applications (C++, Java, Python, JavaScript) for Japanese enterprise clients, collaborating with international teams in Agile.

Technical Skills

AI-Native Development

Claude CodeCursorLLM APIs (OpenAI, Anthropic)AI agents & tool useRAGLangChainpgvectorMCP

Languages

TypeScript / JavaScriptGolangPythonRustC# .NETJavaSQL

Frontend

ReactNext.jsTailwind CSSMaterial-UIHTML5CSS3

Backend

NestJSExpressJSFastAPIAxum (Rust).NET CoreREST / WebSocketJWT / OAuth2

Databases

PostgreSQLMySQLMS SQL ServerMongoDBRedis

Cloud & Delivery

AWSGCPDockerLinux/UnixCI/CD (GitHub Actions)Git

Spoken Languages

Vietnamese (native) · English (professional working proficiency)

Certifications

  • Blockchain Developer (Cosmos SDK, Golang)

    Interchain Developer Academy

    Sep 2022 - Dec 2022 · Certificate ↗

Open to senior/staff engineering roles and select work.

Get in touch