Hiring: lead developer and architect

Lead developer & full stack software architect

An engineer trained in AI and robotics, with several years in large groups. I designed, shipped and operated an entire information system on my own.

Résumé available on request

  • Full autonomy, from architecture to operations
  • Experience in large groups and small businesses
  • Agentic engineering practised daily
See the full profile
Portrait of Charles HILD LÊ, full stack software engineer in Toulouse

Profile

An engineer before being an AI user

What you need to know in one minute.

  • Education

    Engineering school degree in AI and robotics, then several years of development in large groups.

  • Engineering philosophy

    Understand the business before coding, design simple and safe, prove every delivery.

  • What I bring to a team

    An end-to-end view and a method to bring in AI agents without losing control of the code.

Skills

A complete technical foundation

Skills used together, on applications running in production.

Architecture & backend

Stack

Node.jsTypeScriptExpressMedusaJS v2PrismaPostgreSQLRedisMeiliSearchPHP

Know-how: Idempotency, concurrency locks, workers, scheduled jobs, workflows and state machines.

Frontend & product

Stack

React 18/19Next.js 15/16App RouterServer ActionsTailwind 4shadcn / Base UIAG GridRedux Toolkitreact-hook-formZod

Know-how: PDF generation, electronic signature, field photo capture, technical SEO.

Security & identity

Stack

OIDC + PKCEBFFZitadelPasskeysTOTPAES-256-GCM

Know-how: HttpOnly sessions and CSRF protection, AES-256-GCM encryption, rate limiting, server hardening.

DevOps & operations

Stack

DockerGitHub ActionsGHCRCloudflare TunnelNginxPrometheusGrafanaLokiAlertmanagerBorg

Know-how: Reproducible deployments, rollback by tag, monitoring, alerting and deduplicated pull-mode backups.

Business integrations

Stack

MollieStripeDolibarrPeppolUBLEN 16931Google CalendarGoogle Drive

Know-how: Online payment, ERP, electronic invoicing, calendars, transactional emails, and point-of-sale hardware.

AI & data

Stack

PyTorchTensorFlowDDPG / MADDPGNLPXAIClaude CodeCodexMCP

Know-how: Engineering degree in AI and robotics: ML, deep learning, reinforcement learning, NLP, explainability.

How I work

  • Deep understanding of business needs
  • Product vision
  • Anticipation
  • High quality standards and attention to detail
  • End-to-end autonomy

Artificial intelligence

Agentic engineering: AI under an engineer's control

A skill in its own right, which I practise and can spread across a team.

Engineer first. AI executes; I design, decide, review and prove.

I do not delegate my understanding: every change is reviewed, and I keep the final say.

Six principles, each one verifiable

Scope before generating

Versioned specs split into deliverables with acceptance criteria; one instruction contract per repository.

Evidence: A 28-deliverable roadmap drove the SSO rollout across 9 applications.

Orchestrate

A plan approved before any code, specialized sub-agents, worktrees to parallelize without conflict.

Evidence: A fresh session executes another one's plan: no confirmation bias.

Set guardrails

Deterministic hooks, restricted permissions, no secret handed to AI, explicit human escalation.

Evidence: Guardrails are technical, not just instructions.

Prove it

Tests written first, then multi-agent testing in a real browser; every verdict is re-measured.

Evidence: 5 campaigns, over 800 cases, up to 11 agents in parallel.

Keep the final say

Every change reviewed, architecture and security calls made by me. No code I do not understand gets merged.

Evidence: I remain accountable for what goes to production.

Capitalize and stay ahead

Reusable skills, a wiki updated in the same patch, memory shared between agents.

Evidence: Active watch: spec-driven development, MCP, Claude Code, Codex.

Industrializing AI within a team

Shared rules rather than individual habits.

Shared conventions

An instruction contract per repository, versioned specs and a common definition of done.

Team skills

Reusable workflows (feature, acceptance testing, diagnostics) versioned with the code.

Guardrails

Hooks, permissions and mandatory reviews: a technical frame, not just a declared one.

Upskilling

Helping developers move from improvised prompting to a measurable engineering practice.

Work

Skills demonstrated in production

The technologies, the responsibilities and the problems solved.

ArchitectureBackend

Technical data catalog platform

Replacing a legacy tool with an in-house platform, built from scratch.

An internal web application for cataloguing and search, built from scratch by a team of seven whose architecture and code review I own.

ReactTypeScriptViteTanStack Query+17 more
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ArchitectureBackend

A complete SME information system, built single-handedly

13 interconnected apps: sales, workshop, rentals, invoicing and e-commerce

A complete information system for an SME: central API, e-commerce, ERP and point of sale, SSO and 6 business apps.

Next.js 15/16React 19TypeScriptTailwind+30 more
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E-commerceBackend

Headless e-commerce platform connected to the ERP

E-commerce API, storefront and back-office, with an ERP-driven catalogue

A 3-app headless e-commerce platform: ERP-driven catalogue, Mollie payments, legal invoicing and returns handling.

MedusaJS 2Node.jsTypeScriptPostgreSQL 16+13 more
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Security

Single sign-on (SSO) and MFA for 9 applications

One identity, a second factor and central revocation across 9 applications

Self-hosted OIDC single sign-on for 9 applications: passkey or TOTP MFA, server-side tokens and migration with no lost access.

ZitadelOIDC/PKCEBFFTraefik+6 more
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ERPBackend

Custom ERP and connected point of sale

Dolibarr 22 with 8 custom modules, a connected POS and e-invoicing

Dolibarr 22 ERP with 8 custom modules: hardware-connected point of sale, offline inventory and a 4× faster product list.

Dolibarr 22PHP 8JavaScriptPostgreSQL 16+7 more
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Backend

Central multi-application business API

One backend for the workshop, rentals, sales, invoicing and bank reconciliation

Central Node.js API: ~250 endpoints, 44 data models, quotes signed online, idempotent invoicing and server-side OIDC SSO.

Node.jsExpressTypeScriptZod+10 more
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AI

Industrialized agentic development pipeline

Engineer first: AI executes; I design, decide, review and prove.

Versioned specs, skills and multi-agent browser testing: an AI pipeline under engineering control, with over 800 test cases run.

Claude CodeCodexMCP (Chrome DevTools)Skills+6 more
View project

What I'm looking for

Roles with technical responsibility

Roles where architecture, quality and agentic AI carry real weight.

  • Lead developer

    Own the technical quality of a product and support a development team.

  • Software architect

    Design and evolve complete, secure and maintainable systems.

  • AI tech lead

    Structure how a team uses AI agents: methods, tools and safeguards.

Let's discuss your opportunity

Tell me about the role and the technical stakes. CV on request.