Backend Engineer – PHP/Symfony, AI-Driven Platform

Yousign; Paris; Hybrid; EUR 50,000 - 59,000; Full time

Benefits offered by this job

BSPCE

Meal vouchers (Swile) €10.50/day

Health insurance (Alan) 50%

Life & disability insurance 100%

Wellbeing: Axomove & Moka.care

Transportation: 50% public transport

Leeto discount access

Time off: RTT days + menstrual leave

Volunteering day/year

Job summary

Youtrust, a European digital trust platform, is looking for a backend-focused engineer in Paris. You will own server-side development with PHP/Symfony, integrate PostgreSQL ORM, and ensure CI/CD quality.

You’ll work in autonomous squads, pair-programming, and leverage AI tools daily to accelerate delivery while maintaining security and compliance. The role combines back-end focus with front-end familiarity and mentoring in a hybrid setup.

Qualifications

• Master back-end development in PHP with Symfony or Laravel.
• Relational DBs and ORM experience.
• CI principles and automated tests are expected.
• Daily use of AI coding tools (Claude Code or Codex).
• Clear written and spoken English.

Responsibilities

• Design and build features with your squad to meet OKRs.
• Analyse product needs and propose technical design documented in Architecture Decision Records.
• Maintain high code quality with patterns, tests, and automation.
• Monitor observability, performance and security in production.
• Leverage AI tools and agentic workflows to accelerate development.
• Share progress regularly and contribute to team life.
• Collaborate in Lean/Agile environment: Scrum/Kanban, dailies, iterations, demos, retrospectives.
• If desired, share knowledge via blogs or talks.

Skills

PHP backend development

Symfony or Laravel

Relational DB & ORM

CI/CD

AI coding tools (Claude/Codex)

Mentoring/communication

English proficiency

Tools

React

TypeScript

Claude

Codex

GitLab

PostgreSQL

Job description

Youtrust, a European digital trust platform, is looking for a backend-focused engineer in Paris. You will own server-side development with PHP/Symfony, integrate PostgreSQL ORM, and ensure CI/CD quality.

You’ll work in autonomous squads, pair-programming, and leverage AI tools daily to accelerate delivery while maintaining security and compliance. The role combines back-end focus with front-end familiarity and mentoring in a hybrid setup.