I will fix, review or refactor your nodejs and typescript backend

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Mattia A.

About this gig

Is your Node.js backend hard to change? Do bugs come back after every fix? I can help.


I work with Node.js and TypeScript every day: Express, TypeORM, PostgreSQL. I find the cause of a problem, not only the symptom. Then I explain it in plain words.


What I can do:

- Fix bugs in your API, database queries or background jobs

- Review your code and give you a clear list: what to fix first, and why

- Refactor messy code into clean layers (Clean Architecture), with tests

- Improve slow endpoints and database queries

- Upgrade old dependencies or Node.js versions


How it works: you give me access to the repository (GitHub or GitLab). I work on a separate branch. You check the result before anything goes to production.


Please message me before you order. Send a short description of the problem. I will tell you if the Basic package is enough.


I am based in Italy (CET time zone). I speak Italian, German and English.

Get to know Mattia A.

Mattia A.

Senior Full Stack Developer for NodeJS, TypeScript and Angular

  • FromItaly
  • Member sinceOct 2026
  • Languages

    Italian, German, English
Senior full-stack developer with 10+ years of experience. I build backends with Node.js, Express and TypeScript, on PostgreSQL. I use Clean Architecture, so your code stays easy to test and easy to change. I also run my own apps in production on a VPS with Docker: deploys, backups and monitoring. I work with Angular every day too. I am based in Italy (CET time zone). I speak Italian, German and English. Tell me what you need, and I will tell you honestly what it costs and how long it takes.

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