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Axxon/README.md

Hi, I'm Sébastien Grans

Senior Software Engineer · PHP/Laravel/Symfony · Software Quality · Controlled Agentic Delivery

I am a backend-oriented software engineer based in Lozère, France, with seven years of salaried professional experience across cybersecurity, mobile payments, retirement services, logistics, APIs and business-critical applications.

My value is not limited to a framework. I clarify product needs, ship the requested features and leave code easier to understand, test and operate. I work across architecture, implementation, API contracts, review, CI/CD, performance, observability and production support.

I am open to senior backend or backend-oriented full-stack roles, initially fully remote from France, with a path toward technical leadership.

Core engineering

PHP 8 · Laravel · Symfony · API Platform · REST/OpenAPI
Vue 3 · TypeScript · JavaScript
MySQL · PostgreSQL · Redis · queues/workers
PHPUnit · PHPStan/Larastan · Playwright · mutation testing
Docker · CI/CD · Kubernetes · AWS · ELK/Grafana · Sentry

Controlled agentic delivery

I use specialised AI agents as an engineering team that remains under human control:

  • explicit scopes, specifications and acceptance criteria;
  • isolated branches and worktrees;
  • reproducible Docker/Make validations;
  • automated tests, audits and evidence;
  • no auto-merge; final review and integration remain human-owned.

For Sonomundi, I adapted Paperclip as the control plane for this workflow. I also designed a versioned, machine-readable domain ontology that connects roles, capabilities, routes and implementation evidence, making the product easier to inspect and evolve.

This is not a claim of human people management. It is practical experience in framing, delegation, quality criteria, progress tracking, trade-offs and feedback that I now want to transfer into technical leadership with a human team.

Selected work

Sonomundi

December 2025–Present · Side project, now largely automated

A Laravel 12/Vue 3/TypeScript event and music platform used to apply product engineering, project framing and controlled multi-agent delivery.

Technical case study · Live demo

Public engineering worklog

An anonymised activity log showing selected delivery work, quality controls and progress evidence from Sonomundi.

View the public worklog

Portfolio and CV

A bilingual account of my experience, engineering approach, career transition and current goals.

Portfolio · LinkedIn

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