Open to opportunities

Tuyên Đặng

@tuyen

As a developer with more than 7 years of experience in developing. Experienced working on projects with millions of daily users.

Vietnam

Message

What I'm looking for

I am seeking a senior engineering role where I can build high-concurrency web/mobile products, lead technical efforts, and drive performance, scalability, and maintainable architectures.

I am a full-stack developer with over seven years of experience building scalable web and mobile applications, including products that support millions of daily users. I specialize in frontend frameworks (React, Vue, React Native) and have backend experience with Python (Django), Node.js (Nest/Express) and C# (.NET).

I have led frontend and full-stack work on high-concurrency platforms, optimized performance and SEO, built animation and component libraries, and developed game clients and web APIs supporting 100k+ concurrent users. I also have experience with system design, CI/CD (GitHub Actions, Jenkins), testing (Jest, Playwright) and blockchain integrations.

I communicate effectively in English, have held leadership responsibilities, and deliver practical solutions such as cost reductions in translation workflows and efficient data crawling and GRPC services to speed data transfer.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Line Technology Vietnam

Sep 2025 - Present (2 months)

Developed and maintained services and applications for LY Corporation including AI Agent and Line Premium frontend, leveraging LangChain, Next.js and React Native to support high-availability user-facing features.

JavaScript Python React Native Vue.Js Next.js Lang Chain CI CD Unit Testing

Software Engineer

QuanticoGames

Oct 2023 - Sep 2025 (1 year 11 months)

Designed and implemented front-end libraries and 4 of 15 games, optimized platform performance for 100k+ concurrent users, and built web APIs for authentication, payments and subscriptions using .NET and Node.js.

JavaScript C++.NET Node React Native Socket.IO Performance Optimization

Software Engineer

STEMP Education Limited

Mar 2023 - Oct 2023 (7 months)

Developed two mobile apps and a website for an online education platform including Tendo mobile app with Django backend and ChatGPT/Flowise integration to deliver English learning features.

JavaScript Python Django React Native Vue.Js Mobile Development API Development

Software Engineer

SotaTek JSC

Jun 2021 - Mar 2023 (1 year 9 months)

Built web and mobile interfaces across e-commerce, social and education projects, integrated blockchain wallets and smart contracts, and implemented gRPC services and cost-saving translation workflows for data platforms.

JavaScript Python Web3.js Vue.Js gRPC CI CD

Frontend Developer

Works.vn

Nov 2019 - Jun 2021 (1 year 7 months)

Built the frontend UI skeleton and shared component library for a recruitment platform, integrating Material and Ant Design and optimizing code for performance, SEO and accessibility.