J.L.

Jeff L.

  • Web development
  • AI applications
  • Websites

Full-stack developer at Nukleo

./about_me

Photo of Jeff Lemieux

Hi, I'm Jeff.

I have a computer science degree from Université Laval in Quebec City, and I am also a Master of Music (M.Mus) in jazz guitar performance.

Today I'm a full-stack developer at Nukleo, a digital agency where I build client platforms, AI-powered tools and websites.

My strengths as a programmer reside in my creativity and my perseverance. When I put my mind to something, there is no stopping me.

Drop me a line!

./nukleo

What I build at Nukleo

At Nukleo I work across the whole stack, from the database to the interface. Among other things, I've helped build a business management system (ERP) that runs on the web, desktop and mobile, a regulatory and economic monitoring platform that aggregates hundreds of public sources, an AI property-valuation tool with a CRM for agents, and a financial intelligence platform for traders with AI-generated audio briefings. Some of these haven't launched yet, so they stay unnamed for now.

Selected projects

./hacky

1st place

CAIJ “Hacky” hackathon

In October 2026 our Nukleo team took first place by building, in a single day, an AI workspace for lawyers preparing a litigation case: a timeline of facts drawn from the evidence, legal research grounded in real Quebec law through CAIJ's search engine, the other side's counter-arguments, section-by-section drafting with names automatically redacted before anything reaches the AI, claim checking that answers “I don't know” rather than invent a source, and a full log of every AI call.

Next.jsFastAPIPostgreSQLLLM

./aura

Les Artisans du Paysage (Aura)

A suite of business apps for a landscaping company: contract management, work planning, estimating and quoting, with AI-assisted contract enrichment and mapping.

DjangoPostgreSQL/PostGISReactLLM

./surefire

Surefire

A self-guided branding platform for business owners: a free AI-analyzed brand audit, a personalized profile, Stripe checkout and a step-by-step program with progress tracking.

ReacttRPCDrizzleStripeLLM

./gocoupons

GoCoupons IA

An AI service that reads purchase receipts (photo or PDF), extracts the products and decides whether they qualify for a promotional campaign. Each campaign's rules are configured without touching code.

DjangoPythonLLMOCR

./nukleo_voix

Nukleo Voix

A real-time AI voice agent demo: live two-way transcription, a choice of two voice engines and a visual orb that reacts to the voice.

Next.jsWebRTCOpenAI Realtime

./websites

Websites

Rangel Avocat, MR-63, Sycle and the Fondation J.-Louis Lévesque: polished showcase sites, true to the design, with content managed in Sanity where it helps.

ReactNext.jsSanity

./game_instructions

Wanna play?

  • Play tic-tac-toe with me!
  • This game was built entirely with React.
  • It is impossible for you to win, but one first good move can lead to a draw.
  • The MiniMax algorithm calculates the best move on every turn.

Your move.

./clients

Before Nukleo

As a freelancer, I developed elegant web solutions tailored to the needs of the following businesses:

  • Coesio
  • AU 1884
  • Lutherie Lacasse
  • MSP Musique
  • Diffusio
  • IA des solutions

./technologies

Technologies

I use the following technologies to develop optimized, fast, and cutting-edge web solutions:

Front-end

ReactNext.jsTypeScriptTailwind CSSVue.jsReact Native / Expo

Back-end

Node.jsPythonDjangoFastAPItRPC

Data

PostgreSQL / PostGISMongoDB

AI

LLM APIs (OpenAI, Claude)Real-time voiceAI-assisted development

Infra

AWSGCPDockerRailwayDigitalOceanNginx

./contact

Please, contact me and I will be glad to answer all of your questions.