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Nathan Hallouin

Full Stack React & Next.js Developer · Freelance & open to permanent roles

  • Products shipped to production
  • Robust TypeScript code
  • Product & team mindset
Nathan Hallouin - Full Stack Developer

Why choose me

My approach

09/2025

Start of the health SaaS built solo

310
API routes in production
4,658
Automated tests
HDS
Scalingo certified hosting, France
“Nathan delivered work that goes well beyond the initial scope of our contract. Remarkable technical rigour and autonomy on a demanding subject: a rehabilitation app handling health data. A true build partner, not just a contractor.”
N
Nicolas
Physiotherapist · Physio Xpert

Want to learn more?

Discover my tech articles

Blog

How I work

A clear, rigorous method, on a freelance mission as well as within a product team

Step 01

Discovery & scoping

Understanding the need, goals and constraints, whether a client brief or a product ticket. Analysis, technical breakdown and risk identification before writing a single line.

Estimated duration: Upfront
Step 02

Design

Defining the architecture, technical choices and mockups or prototypes when useful. Validating decisions before diving in.

Estimated duration: Before dev
cursor
frame
shape
pen
Landing Page
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Figma cursor
Nathan
Design
W 1440
H 900
X 0
Y 0
Fill
7557FB
Stroke
None
Step 03

Development

Clear, tested code, short iterations, reasonably-sized PRs. I favor readability and simplicity over over-engineering.

Estimated duration: Project core
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Step 04

Review & quality

Thoughtful, constructive reviews, automated tests and code review. I share knowledge and learn from others to raise the bar.

Estimated duration: Ongoing
Deploy
Docs
Tests
Step 05

Delivery & ownership

Shipping to production, monitoring and user feedback. I stay accountable for what I ship (bugs, performance, tech debt) and support what comes next.

Estimated duration: After release
Uptime
99.9%
Latency
45ms
Users
12.4k
All systems operational

A project or a role?

Whether you are looking for extra hands on a project or a developer to join your team for the long run, let's talk.

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