Oussama Nahiz

Senior full-stack engineer and graduate of the 42 coding school, with 9+ years building production software with React, Node.js, TypeScript, and AI. Book a call for the full story, or find my references on Toptal.

I built an enterprise healthcare platform on my own as part of a six-figure deal. As co-founder and CTO, I led 9 engineers. Through Toptal, I completed 8 engagements for 7 clients.

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Experience

Acurai
Jan 25 – Jun 25
Senior Software Engineer
- Shipped the front end for the Chat, Wiki, and Brain Builder interfaces.
- Used TypeScript, Next.js, and Node.js for OpenAI-integrated workflows.
LendStack
Oct 23 – May 24
Co-Founder & CTO
- Led 9 engineers in a 14-person startup.
- Launched pilots with 2 clients in Zambia, with 12 prospects in the pipeline.
- Designed the Next.js and Node.js microservices architecture for identity verification (KYC), document text extraction (OCR), and AI-assisted workflows.
Toptal
Apr 22 – Oct 24
Senior Software Engineer
- Built full-stack applications and data visualizations with React, Node.js, TypeScript, MongoDB, and AWS.
- Clients included Blue River Technology, Axion Ray, What's Next Media, Top Shelf Insurance, DSF OpCo, and iTech Insurance.
Axion Ray
May 24 – Oct 24
Senior Software Engineer
- Built tools to configure AI in the data-operations module.
- Connected the React interface to backend services built with Node.js and MongoDB.
What's Next Media
Sep 23 – Jan 24
Senior Software Engineer
- Built React data visualizations for connected-economy reporting.
- Built Node.js backend features using SQL, MongoDB, and third-party APIs.
Blue River Technology
Apr 22 – Aug 22
Senior Software Engineer
- Built Clicky Clicky on my own: a web labeling tool for collecting reference data (ground truth) on See & Spray boom height.
- Migrated the Spyglass platform from vanilla JavaScript to React.
VO2 Group
Jan 21 – Jan 22
Senior Software Engineer
- Built the Radiometer Course Creator on my own for a six-figure enterprise deal, using React, Node.js, TypeScript, AWS SAM, and PostgreSQL.
- Led 3 engineers rebuilding AXA Health Keeper, moving from Quasar/Vue to React and React Native.
- Saved about $20K per year in licensing by building an in-house JavaScript API layer for AQURE.
Spotbills
Sep 20 – Dec 20
Full-Stack Developer
- Built the signaling server for Peer, a hybrid mobile chat and calling app, with NestJS, TypeScript, Redis, MongoDB, Socket.IO, and WebRTC.
Caronae Systems
Apr 20 – Sep 20
Senior Software Engineer
- Led 3 front-end engineers building tools to create identity verification workflows.
- Integrated government ID recognition, face matching, and liveness checks.
SQLI Digital Experience
Feb 20 – Jul 20
Software Engineer
- Implemented a guest checkout flow for the Nespresso storefront.
- Wrote Jest and Enzyme tests and modernized legacy AngularJS and jQuery code.

Acurai
Jan 25 – Jun 25
LendStack
Oct 23 – May 24
Toptal
Apr 22 – Oct 24
Axion Ray
May 24 – Oct 24

Skills

Core stack

Backend & data

Cloud & delivery

AI

Breadth

GitHub activity

JanFebMarAprMayJunJulAugSepOctNovDec

2,535 in 2026

Projects

Ballpoint
Open-source React component library drawn in this site's ballpoint style.
whichmodel
1 stars
TypeScript command-line tool (CLI) that recommends an AI model for a task.
Sigil
329+ commits
Creator studio that turns videos and images into shareable text-based (ASCII) previews.
Asset Forge
Platform for generating game assets and character art with fal.ai.
souk-fighter
2 stars
Browser fighting game inspired by The King of Fighters, with a custom .sfpack format for bundling game assets.

Experience

Skills

Core stack

Backend & data

Cloud & delivery

AI

Breadth

Core stack

Backend & data

Cloud & delivery

AI

Breadth

GitHub activity

Projects

Ballpoint

whichmodel

Sigil

Asset Forge

souk-fighter