Available: full-time, remote & freelance
Founder & Senior Full-Stack Engineer
I ship complete products, from Rust backends and AI agents to the interface people actually touch.
How I build: every layer
Everything people see and touch. I build fast, accessible web apps, React Native mobile apps and premium websites with motion and 3D, so the experience feels effortless on any screen.
React · Next.js · TypeScript · React Native · Expo · Three.js
AdvantageFast, accessible, memorable.
The front door of every product. Each request is authenticated, validated and routed through clear REST or GraphQL contracts that other teams can build on, documented with OpenAPI.
REST · GraphQL · Apollo · JWT · Zod · Swagger
AdvantageSecure, predictable contracts.
Services talk through events instead of waiting on each other. Message queues, webhooks and real-time channels keep the platform responsive under load and keep payments in sync.
RabbitMQ · WebSockets · Webhooks
AdvantageResponsive under load.
Where the business logic lives: multi-tenant platforms, billing and subscriptions, notifications and autonomous AI agents that wait for a human approval. Written in NestJS or Rust, depending on the job.
NestJS · Node.js · Rust (Axum) · Microservices · LLMs
AdvantageLogic that scales cleanly.
Where everything is stored and searched: relational and document databases, caching, object storage and vector search for AI, designed for correctness first, then speed.
PostgreSQL · MongoDB · Redis · MinIO · Qdrant · Meilisearch
AdvantageCorrect first, then fast.
Full stack
End to end.
One request, five layers. I design, build and ship all of them.
01About
I'm a senior full-stack engineer with 6+ years of shipping production software end to end, from the database schema to the last pixel.
Most of my work sits where reliability matters: financial platforms, multi-tenant SaaS, distributed backends and AI systems, from hybrid RAG search to autonomous agents with a human in the loop. I work daily with Node.js/NestJS, TypeScript, PostgreSQL, Rust and AWS, and I take products all the way to the user: web apps, React Native/Expo mobile apps and premium websites.
Today I run my own studio, RE_UNDERSCORE. I've led a team of 5+ engineers, mentored juniors, and set up the code reviews, tests and monitoring that keep production calm. I work in English, French and Arabic.
Sousse, TunisiaArabic · French · English
Microservices, multi-tenant platforms, payments and financial workflows.
Hybrid RAG search and autonomous agents with a human in the loop.
Next.js and React apps, React Native/Expo mobile apps.
Fast, accessible websites with motion and 3D.
02Selected work
Two case studies: a fintech platform I built and own, and AI search at scale.
Fintech · Bank draft management
Bank drafts are still a paper instrument. Combium turns them into data: drafts are captured by photo (OCR), printed precisely on the official forms, tracked per company and summarized every morning by WhatsApp or SMS.
AI · Hybrid RAG search
The backend of an AI chatbot that answers from the Quran and Hadith. Built in Rust, it combines semantic vector search (Qdrant) with full-text search (Meilisearch) to ground every answer in 7M+ records of hadith, tafsir and related texts.
03AI Agents
Two autonomous agents that take on the repetitive work of growing a business, with a human approving every result in one click.
01 / 02
Plans, writes, designs and publishes Instagram and Facebook content. LinkedIn is next.
How it works
Impact
A steady, consistent presence, for a few minutes a day.
02 / 02
Finds businesses that would benefit from a website, qualifies them, and writes each one a personal email.
How it works
Impact
A continuous flow of qualified leads, with no manual research.
Public contact details only · opt-out in every email · one follow-up maximum.
I build agents like these for other businesses.
Discuss an AI agent04Websites & redesigns
Websites I designed and built, including concept sites that show the quality a client gets, in French, Arabic and English.
Designed mobile-first: the layout adapts from phones to large screens.
Heavy on 3D and animation, yet smooth and usable on a phone.
French, English and Arabic, with a right-to-left layout for Arabic.
Studio websiteFR · EN
My studio's website: services, process and selected projects.
Visit site RE_UNDERSCORE (opens in a new tab)ConceptFR · AR
A self-initiated website proposal for a historic rowing, canoe-kayak and swimming club founded in 1937, which has no website.
Visit site Club Nautique de Sousse (opens in a new tab)ConceptFR · AR · EN
A concept site for a fictional padel club: courts, pricing, academy, memberships, tournaments and booking.
Visit site Volea Padel Club (opens in a new tab)ConceptFR · AR · EN
A concept site for a fictional car rental agency: fleet, delivery, conditions and quote requests.
Visit site Velora Location (opens in a new tab)05Other projects
SaaS · Fitness coaching
My own SaaS for fitness coaches: a web dashboard for coaches and a mobile app for their clients. From a prompt, the client's data and the health stats they enter, its AI generates personalized workouts, exercises and meal plans.
Multi-tenant platform
A multi-tenant management portal for car rental agencies, where each agency's data stays isolated on one shared engine.
Booking · Real time
Booking engines with real-time flight tracking and route pricing calculated from Google Maps routes.
E-commerce · Supply chain
The backend of VIF, a beauty and cosmetics e-commerce and supply-chain platform, on a carefully designed PostgreSQL schema.
Sports management
The backend of a sports management platform.
06Experience
Pick a period on the timeline to see the role, the results and the tools.
Nov 2020 – Nov 2022
In parallel with DunDill from June 2022.
Nov 2020 – Nov 2022
Developed interactive web interfaces with React, GraphQL and Material-UI, extended to React Native mobile apps.
Implemented asynchronous communication between microservices with RabbitMQ, increasing backend responsiveness by 25%.
Containerized the local development and staging environments with Docker and Docker Compose.
Jun 2022 – Mar 2024
Promoted from developer to technical team lead.
Jul 2023 – Mar 2024
Led a team of 5+ developers delivering external software projects on schedule, cutting delivery timelines by 25%.
Implemented rigorous code reviews and automated testing workflows, reducing production bugs by 40%.
Integrated DataDog monitoring to track system health and resolve production incidents quickly.
Jun 2022 – Jul 2023
Built modular backend microservices with Node.js, TypeScript, Apollo GraphQL and Prisma.
Set up unit-testing suites that secure the codebase before deployment.
Mar 2024 – Oct 2025
Backend owner on several client platforms, from e-commerce to AI search.
Mar 2024 – Oct 2025
Built the backend of VIF, an e-commerce and supply-chain platform, with NestJS, TypeScript, PostgreSQL and TypeORM.
Engineered the Truth Chatbot, a hybrid RAG backend in Rust combining Qdrant vector search with Meilisearch full-text search over 7M+ records.
Built the backend of Universel Sport, a sports management platform, with NestJS, MongoDB and Mongoose.
Mentored junior engineers, enforced clean-code standards in reviews, and optimized database queries on production services.
Oct 2025 – Present · Sousse, Tunisia
I founded RE_UNDERSCORE to design and deliver complete products end to end: architecture, backend, front-end, mobile, deployment and premium websites.
Oct 2025 – Present
Engineered Combium, a bank draft (lettre de change / traite) management platform: high-precision print workflows, OCR photo parsing, automated WhatsApp/SMS daily digests and multi-tenant financial reporting.
Architected and deployed PowerUp, an AI fitness SaaS: Rust (Axum) API, MongoDB, MinIO storage, Lemon Squeezy billing (webhooks, subscriptions, automated lifecycle) and an Expo mobile app.
Built a multi-tenant Car Rental ERP management portal with NestJS, PostgreSQL and React.
Developed airport booking engines with real-time flight tracking and route pricing from Google Maps routes.
Designed and built two autonomous AI agents (social media and prospecting) on a self-hosted open-source model, with a human approval before anything goes out.
Delivered premium websites and redesigns.
07Leadership
Seniority shows in what the people around you can do. Here is what changed when I led.
5+developers led
Promoted from developer to technical lead at DunDill, I guided a team of five-plus engineers through external client projects, from first commit to delivery.
25%shorter delivery timelines
Projects landed on the agreed dates, and the time from start to delivery came down by a quarter.
40%fewer production bugs
Rigorous code reviews and automated tests on every change, plus DataDog monitoring, so fewer bugs reached users and incidents were resolved faster.
08Engineering principles
The same habits run through the fintech platforms, the SaaS products, the AI systems and the websites.
From the database schema to the last pixel, one person accountable, so nothing gets lost between layers.
Code reviews and automated tests before anything reaches production. As a team lead, that cut production bugs by 40%.
Monitoring on live services, so problems are seen early and incidents are resolved fast.
Microservices, asynchronous queues and tuned queries keep systems responsive as usage grows.
Multi-tenant by design: each client's data stays separate. AI can run on a self-hosted model when privacy matters.
The model drafts and searches; ordinary code filters and checks; a person approves what goes out.
09Skills & stack
10Education & certifications
National Engineer's Degree in Electrical and Automatic Engineering
École Polytechnique de Sousse · 2015–2020
Embedded systems integration, automated process control, software engineering
Google Cloud Fundamentals: Core Infrastructure
Coursera
Graph Developer — Associate & Professional
Apollo GraphQL
Intel Edge AI Certification
Intel Corporation
Arabic
Native
French
Professional proficiency
English
Professional proficiency
11Contact
Tell me about the role, the product or the website. I reply within two working days.