2023 – 2025
Emerton
Senior Full-Stack Engineer (Contract), Remote
~7 business and startup clients. React / Next / TypeScript + FastAPI / Node. Auth, payments, APIs. Independent delivery.
Adonis Xiao
Full-stack developer · Florina, Greece · Remote. Bookings, billing, waste haul, and real-time systems.
Desk
Live product, then the one built beside it, then the contract that preceded both.
The shots are the work. Open a folder for stack and what I owned.
02 · live
Wastelink
For the Cyprus Association. Construction waste from project approval to certified recycling — GPS, digital contracts, automated workflows.
- No stills on file01live
Sep 2025 – Jun 2026
Exeltiq
Multi-tenant CRM for gyms, clinics, and sports clubs in Cyprus. Primary builder. Greek + English. Paid Stripe plans.
Open folder →
02liveSep 2025 – Jun 2026
Wastelink
For the Cyprus Association. Construction waste from project approval to certified recycling — GPS, digital contracts, automated workflows.
Open folder →
- No stills on file03closed
Mar 2025 – Jul 2025
Corva.ai
Hackathon, then contract backend through project completion on an oil-and-gas real-time platform.
Open folder →
Experience
Before the desk
2021 – 2022
ACLIT
Backend Developer (Contract), Remote
REST (Node, Express, Python). JWT/OAuth. PostgreSQL, MySQL, MongoDB. Swagger / Postman.
2020 – 2021
React + TypeScript UI, reusable components, production frontend.
2018 – 2020
TechWave Solutions
Junior MERN Stack Developer
React, Node, Express, MongoDB. AWS EC2, PM2, Nginx.
2016 – 2020
Central South University, Changsha
B.S. Computer Science
Education.
About
One engineer owns the product.
Seven-plus years building production web apps — mostly inside founder-led teams where one engineer owns the product, the billing, and the 2 a.m. bug.
Recent work is two live Cyprus products built at Exeltive: Exeltiq (club CRM, Stripe, Twilio) and Wastelink (Association waste haul, Mapbox, Telnyx). Before that: Corva’s real-time stack, two years at Emerton across about seven clients, backend APIs at ACLIT, frontend production at GMO in Japan, and a MERN start at TechWave. Computer Science at Central South University, Changsha.
I care about state that does not drift — credits, jobs, bookings, hauls.
Next.jsReactTypeScriptFastAPIPythonNode.jsExpressPostgreSQLSupabaseMongoDBMySQLClerkStripeTwilioTelnyxMapboxOpenAI APIWebSocketsAWSDockerCI/CD
Contact
Florina, remote. Available for the next build.
Find me online
- GitHub — Adonis Xiao
- Wellfound — Adonis Xiao
- Freelancermap — Adonis Xiao
- Hubstaff — Adonis Xiao
- Cryptotask — Adonis Xiao
- Dynamite Jobs — Adonis Xiao
- Xing — Adonis Xiao
© 2026 Adonis Xiao