Full Stack Engineer
Description
As a Full Stack Engineer you are responsible for designing, developing, and maintaining both the server-side and client-side components of our software applications. This role requires expertise in full-stack technologies and the ability to build robust, scalable systems while collaborating effectively within an agile team environment. This position involves working closely with Engineering Managers, Product Managers, and other team members to implement features, improve system architecture, and ensure high-quality deliverables that meet both technical and business requirements. The Full Stack Engineer will be part of a cross-functional squad and will contribute to technical decisions while maintaining high standards of code quality, performance, and security.
Technical development
Design, develop, and maintain scalable back-end services and APIs as well as front-end applications
Build and optimize database schemas and data models
Write clean, maintainable, and well-tested code following team standards and best practices
Participate in code reviews and provide constructive feedback to team members
Debug production issues and implement robust solutions
Contribute to technical documentation and architecture decisions
Design and implement RESTful APIs
Optimize application performance, database queries, and system scalability
Implement caching strategies and asynchronous processing systems
Participate in agile ceremonies and technical planning sessions
Collaboration and innovation
Actively participate within an autonomous mission team (PM, Designer, Engineering Manager, other Engineers) to clarify priorities and user needs
Contribute to technical discussions and architecture decisions
Collaborate with team members to define API contracts and data structures
Participate in squad rituals and team meetings
Handle support requests and bug fixes within agreed SLAs
Quality & best practices
Write unit tests and integration tests following TDD principles
Collaborate with QA team to ensure comprehensive test coverage
Participate in pair programming sessions with team members
Monitor application performance, scalability, and implement improvements
Follow security best practices and address vulnerabilities proactively
Contribute to continuous integration and deployment processes
Implement logging, monitoring, and alerting systems
Ensure data integrity and implement backup strateg
Hybrid work: 2 days on site in Paris, 2 days remote, as part of our 4-day week
Health insurance (mutuelle)
Meal vouchers
75% of your Navigo pass covered
Must-have
5+ years of professional software development, with significant experience on both back-end and front-end
Proven experience designing scalable architectures, RESTful APIs and data models
Strong knowledge of relational databases and performance optimization (queries, caching, asynchronous processing)
A strong testing culture (unit, integration, TDD), and you're the one who raises the bar on code quality
Experience running production systems: monitoring, alerting, incident management
Ability to mentor other engineers through code reviews, pairing and knowledge sharing
Professional English, as you'll work with international teammates
Nice-to-have
Experience with our stack (Elixir / Phoenix, React / TypeScript, PostgreSQL), or the motivation to learn it quickly
Experience with high-traffic products
Familiarity with Datadog, Sentry, Docker, Kubernetes or AWS
Experience in a product company or a SaaS environment
Talent Acquisition interview : A 45-minute conversation about your experience, motivations and best professional challenge.
Technical assignment
Values Interview
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