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Christian A.

Christian A.

Full-Stack Engineer | Next.js, TypeScript, Node.js | AI-Augmented Dev

A Next.js migration I led cut page load times from 30 seconds to under 10 through bundle analysis, code splitting, and server components. That's the kind of work I do: not just shipping features, but understanding why things break and fixing them properly. I'm a full-stack engineer with 4+ years building production systems across the entire stack. Next.js and React on the frontend, Node.js and NestJS on the backend, PostgreSQL for data, Docker and GitHub Actions for deployment. I'm comfortable owning a feature from database schema to UI and everything in between. My workflow is AI-augmented. I use Claude and Cursor daily for code review, test generation, and refactoring. Faster delivery, same quality bar. What I work with: Frontend: Next.js App Router, React, TypeScript, TailwindCSS Backend: Node.js, NestJS, REST/GraphQL APIs Data: PostgreSQL, Redis Tooling: Docker, GitHub Actions, Jest, Playwright, Storybook I take on a small number of projects at a time and stay hands-on throughout. If you need someone who can own a technical problem end to end and communicate clearly, let's talk.

🇫🇷Paris, France$30/hr100% JSS5.00 (2)Since Jan 2023

Earnings and projects

MRR
$380

Last 6 months ÷ 6

World#88,917 / 412k
🇫🇷Country#435 / 2,884
Revenue, last 30 days
$0

Last 6 months: $2.3k

Total earnings
$51k

Billed in all: $54k

World#74,558 / 412k
🇫🇷Country#377 / 2,884
Per project
$17k

$2.3k in the last 6 months

World#7,614 / 412k
🇫🇷Country#31 / 2,884
Projects, last 6 months
1
0% fixed100% hourly
World#128,096 / 412k
🇫🇷Country#755 / 2,884
Projects in all
3

Across 4 contracts

50% fixed50% hourly
World#304,143 / 412k
🇫🇷Country#2,132 / 2,884

Earnings, last 30 days

$53.5kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$52k$53k$54k$55kOct 9Oct 24Nov 8

Skill rankings: Top 16% in Jest

Ranked by MRR among everyone on Upwork with the skill.

  1. #66Jest412 freelancers · 🇫🇷 #1Top 16%
  2. #168Cypress712 freelancers · 🇫🇷 #2Top 24%
  3. #611GraphQL3,404 freelancers · 🇫🇷 #1Top 18%
  4. #728CI/CD3,691 freelancers · 🇫🇷 #2Top 20%
  5. #1,224REST API5,063 freelancers · 🇫🇷 #4Top 24%
  6. #1,264Tailwind CSS6,979 freelancers · 🇫🇷 #2Top 18%
  7. #1,874MongoDB10,865 freelancers · 🇫🇷 #3Top 17%
  8. #3,121PostgreSQL12,851 freelancers · 🇫🇷 #6Top 24%