I'm a full-stack engineer with more than six years of experience delivering large-scale web platforms for energy, telecommunications, and manufacturing clients. I specialize in backend/API ownership and modern front-end delivery using Python, TypeScript, Vue, React, Flask, and Nuxt. I've been living and working in Tokyo since July 2024 on an Engineer/Specialist in Humanities/International Services visa, valid until July 16, 2029. I am comfortable communicating in Japanese during design discussions and I maintain bilingual documentation and collaboration with diverse teams.

Hongcheng Wang

I'm a full-stack engineer with more than six years of experience delivering large-scale web platforms for energy, telecommunications, and manufacturing clients. I specialize in backend/API ownership and modern front-end delivery using Python, TypeScript, Vue, React, Flask, and Nuxt. I've been living and working in Tokyo since July 2024 on an Engineer/Specialist in Humanities/International Services visa, valid until July 16, 2029. I am comfortable communicating in Japanese during design discussions and I maintain bilingual documentation and collaboration with diverse teams.

Available to hire

I’m a full-stack engineer with more than six years of experience delivering large-scale web platforms for energy, telecommunications, and manufacturing clients. I specialize in backend/API ownership and modern front-end delivery using Python, TypeScript, Vue, React, Flask, and Nuxt.

I’ve been living and working in Tokyo since July 2024 on an Engineer/Specialist in Humanities/International Services visa, valid until July 16, 2029. I am comfortable communicating in Japanese during design discussions and I maintain bilingual documentation and collaboration with diverse teams.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Intermediate

Language

Japanese
Fluent
English
Advanced

Work Experience

Full-stack Engineer, Web Map Development Department at GTMap Information Industry Co., Ltd.
July 1, 2019 - February 28, 2022
Built map applications that visualized statistical and geospatial data across mobile and browser clients. Planned one-month sprints and backlog items with product stakeholders. Developed TypeScript/Vue/Nuxt features and supported MySQL data design on Windows. Ran end-to-end QA cycles, captured regression issues, and ensured timely fixes. Transformed user feedback into actionable design changes and production patches. Impact: Launched a map platform adopted by roughly 5,000 enterprise customers, enabling analysis even in remote regions.
Software Engineer, Maintenance & Development Division at INTSIG Information Co., Ltd.
March 1, 2022 - May 31, 2024
Owned maintenance and net-new features for a manufacturing parts management system while supporting educational OCR initiatives. Investigated software defects reported by users and QA; deployed rapid fixes. Designed, implemented, tested, and released new features with Python, TypeScript, and PostgreSQL. Worked across React (Next.js) and Flask stacks to keep customer deliveries on schedule. Maintained operational documentation and ensured smooth cutovers for business teams. Impact: Stabilized the platform, reducing operational workload and overall project costs. Helped deliver a homework-recognition OCR mobile application used by approximately 4,000 middle-school students in Shanghai.
Frontend & API Developer at ESS staffing agency (dispatch to Electric Power Company)
July 1, 2024 - Present
Modernize the electric utility's customer contract portal and internal management tools. Own backlog grooming through delivery for Python, React, Flask, and PostgreSQL services. Collaborate with Japanese stakeholders to validate requirements and UX flows. Maintain source control and documentation via Gitea, Jira, and Confluence. Lead demos, testing, and deployment checklists to maintain release quality. Impact: Improved responsiveness by tuning API performance and caching strategies. Maintained bilingual documentation that accelerates onboarding for new members.

Education

Bachelor’s Degree in Computer Technology and Engineering at Jiangsu University of Science and Technology
September 1, 2015 - June 1, 2019
Bachelor’s Degree in Computer Technology and Engineering at Jiangsu University of Science and Technology
September 1, 2015 - June 1, 2019

Qualifications

Japanese Language Proficiency Test (JLPT) N1
December 1, 2023 - December 11, 2025
JLPT N1
December 1, 2023 - January 5, 2026

Industry Experience

Energy & Utilities, Telecommunications, Manufacturing, Software & Internet, Education, Professional Services, Transportation & Logistics