Fullstack Developer React / PHP

October 16, 2026

Hybrid

Senior

Montreuil, Île-de-France, France

Keep in mind

Original vacancy is in French
You will likely need French for the job. The employer can confirm

Description

A French insurance and social protection company is hiring an experienced Fullstack Developer for a small agile team working on strategic, innovative projects. The role covers design, development and evolution of new applications — user interfaces and APIs — as well as maintenance and continuous improvement of existing systems. The technology environment is modern, centred on microservices, APIs and DevOps practices, with AI increasingly integrated into the development lifecycle.

Responsibilities

Take part in technical design phases and workshops with study and architecture teams
Design and build robust APIs and microservices with Symfony
Develop modern, performant user interfaces in React
Address architecture, security and operability concerns from the design stage
Integrate AI effectively across the different phases of the software development lifecycle
Challenge requirements, estimate effort and contribute to user stories
Ensure code quality: unit tests, code reviews, static analysis and development best practices
Ensure operability of applications: logs, supervision and monitoring
Take part in the industrialization of deployments through CI/CD pipelines
Track applications in production and contribute to the RUN of applications
Maintain and continuously improve existing applications

Requirements

Excellent mastery of Symfony and React
Solid experience with APIs and microservices, including API Gateway solutions
Good command of Docker and CI/CD environments, ideally GitLab or equivalent
Good command of generative AI tools for development, collaboration and orchestration
Knowledge of application security best practices
Good knowledge of relational databases
Good knowledge of application and user authentication/authorization mechanisms
Good knowledge of tools like JIRA/Confluence
At least 5 years of fullstack development experience with Symfony and React in quality-driven environments
Engineering degree or university degree in computer science
Autonomy, team spirit, technical curiosity and analytical skills
Knowledge of insurance and pension provision domain is a real asset

Conditions

Modern offices near metro St Mandé or Robespierre (lines 1 or 9) or RER A Vincennes
Very favourable collective agreement and company agreements
Attractive profit-sharing and matching contributions on PEE
Cadre status with up to 21 RTT days and time-saving account monetization
Edenred card with 11€ meal ticket per day and inter-company restaurant nearby
2 days of telecommuting after 6 months of seniority, 1 day from 3 months
CSE offering many benefits: gift vouchers, holidays, culture
Strong CSR policy with family and senior benefits and bicycle mileage allowance
Top-level health insurance and provident contract
Full-time employment