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I'm a full-stack software engineer based in Helsinki, Finland, building production-ready web and cloud systems with Java, Python, TypeScript, and AWS/Azure. I prioritize clean architecture and scalable design, delivering robust code and maintainable solutions. I enjoy collaborating across frontend, backend, and cloud teams to ship end-to-end SaaS features, from secure authentication and data storage to deployment pipelines and infrastructure.…I'm a full-stack software engineer based in Helsinki, Finland, building production-ready web and cloud systems with Java, Python, TypeScript, and AWS/Azure. I prioritize clean architecture and scalable design, delivering robust code and maintainable solutions. I enjoy collaborating across frontend, backend, and cloud teams to ship end-to-end SaaS features, from secure authentication and data storage to deployment pipelines and infrastructure.

ZHENYU YANG (Stephen)

Full Stack Developer, Web Developer, Programmer, +2

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I'm a full-stack software engineer based in Helsinki, Finland, building production-ready web and cloud systems with Java, Python, TypeScript, and AWS/Azure. I prioritize clean architecture and scalable design, delivering robust code and maintainable solutions. I enjoy collaborating across frontend, backend, and cloud teams to ship end-to-end SaaS features, from secure authentication and data storage to deployment pipelines and infrastructure.…I'm a full-stack software engineer based in Helsinki, Finland, building production-ready web and cloud systems with Java, Python, TypeScript, and AWS/Azure. I prioritize clean architecture and scalable design, delivering robust code and maintainable solutions. I enjoy collaborating across frontend, backend, and cloud teams to ship end-to-end SaaS features, from secure authentication and data storage to deployment pipelines and infrastructure.

Available to hire

I’m a full-stack software engineer based in Helsinki, Finland, building production-ready web and cloud systems with Java, Python, TypeScript, and AWS/Azure. I prioritize clean architecture and scalable design, delivering robust code and maintainable solutions.

I enjoy collaborating across frontend, backend, and cloud teams to ship end-to-end SaaS features, from secure authentication and data storage to deployment pipelines and infrastructure.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Advanced

Chinese

Fluent

Finnish

Beginner

Work Experience

Web Developer (Part-time) at Nordic Shine Travel Oy

January 1, 2024 - January 1, 2025

Developed full-stack features based on real business requirements. Deployed and optimized production systems on AWS cloud.

Full-Stack Developer (Internship) at Justice4.0 Finland Oy

January 1, 2024 - January 1, 2025

Developed a Python-based backend for an AI-powered legal assistant on Microsoft Azure. Implemented document ingestion, indexing, and retrieval using Azure AI Search and Azure OpenAI (RAG). Designed secure file storage and authentication via Azure Data Lake Gen2 and Azure AD B2C (MSAL). Built and integrated a Next.js frontend, delivering end-to-end SaaS functionality.

Network Administrator at Guangzhou Tax Bureau

January 1, 2015 - January 1, 2018

Maintained 200+ computers, switches, routing servers, and file servers. Diagnosed and resolved hardware, software, and network connectivity issues. Supported internal IT infrastructure and ensured system stability and security.