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About
Zeliang Yao — freelance Python developer in Paris
Hi, I'm Zeliang - a freelance developer based in Paris, Ile-de-France with 10+ years of experience in backend engineering, data engineering, and cloud DevOps. I've worked with teams of all sizes - from early-stage startups to established companies - helping them design scalable architectures, automate workflows, and move faster without compromising reliability. My toolkit includes Python, FastAPI, Django, Next.js, Docker/K8s, modern data stacks, and a growing set of Web3 technologies.
My work philosophy?
Build systems that are scalable, clear, and durable - and embrace the reality that in the AI era, one skilled engineer can operate like a full team.
Let's work together
If you're looking for someone who can think independently, communicate clearly, and ship reliable code, feel free to reach out. I'd love to hear what you're building.
Testimonials
Global Reach, Local Impact
Based in France, I work with clients around the world, my international experience includes projects in the United States, France, China and Dubai, giving me a strong understanding of global business cultures and technical expectations.Each engagement is an opportunity to adapt to new environments while maintaining the same level of quality, clarity, and reliability.
Key Highlights:
- Remote collaboration across multiple time zones
- Multilingual communication (English, French, Chinese)
- Adaptable to diverse technical stacks, industries, and delivery models
- Flexible payment options (hourly, fixed-price, usdc, crypto)
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How this site is built
A one-man stack — Next.js frontend, Django API, Postgres, Spaces CDN.
This is the site you are reading — a live case study, not a logo wall. I design, ship, and operate it myself: a Next.js frontend talking to a Django API, Postgres for data, and DigitalOcean Spaces as the CDN.
Vercel ships the UI. Docker keeps the API portable on DigitalOcean. Gemini runs the AI secretary so visitors can ask questions without a ticket queue.
- Next.js
- React · TS
- Django
- FastAPI
- Postgres
- DigitalOcean
- AWS
- Vercel
- Docker
- Python
- Front-endNext.js, React, TypeScript
- Back-endDjango REST Framework
- DatabasePostgreSQL
- StorageDigitalOcean Spaces + CDN
- DeployVercel · DigitalOcean
- AI SecretaryGeminiAPI docs