Senior Full-Stack Engineer — Hybrid Paris, 4-Day Week

Welcome to the Jungle; Paris; Hybrid; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Hybrid work schedule

Health insurance

Meal vouchers

60% Navigo pass

Job summary

Welcome to the Jungle is seeking a Full Stack Engineer to design, develop, and maintain both server-side and client-side components, collaborating with an autonomous squad including an Engineering Manager, Product Manager, and designers. You will implement RESTful APIs, optimize performance, ensure security, and contribute to architectural decisions, code reviews, and continuous integration.

The role is hybrid with two on-site days in Paris and two remote days as part of a 4-day week;

Qualifications

• 5+ years of professional software development in full-stack roles.
• Proven experience designing scalable architectures and APIs.
• Strong relational DB and performance optimization skills.
• High emphasis on testing culture: unit/integration/TDD.
• Experience running production systems: monitoring and incident handling.
• Ability to mentor peers through reviews and pairing.
• Professional English for international collaboration.

Responsibilities

• Design, develop, and maintain scalable back-end services and front-end apps.
• Build and optimize database schemas and data models.
• Write clean, tested code following team standards.
• Participate in code reviews and provide constructive feedback.
• Debug production issues and implement robust fixes.
• Contribute to technical documentation and architecture decisions.
• Design and implement RESTful APIs; optimize performance.
• Implement logging, monitoring, and alerting systems.
• Participate in agile ceremonies and planning sessions.
• Handle support requests and bug fixes within SLAs.

Skills

Full stack

REST APIs

Data modeling

Code reviews

Mentoring

English

Tools

Datadog

Sentry

Docker

Kubernetes

AWS

React

TypeScript

Elixir

Phoenix

PostgreSQL

Job description

Welcome to the Jungle is seeking a Full Stack Engineer to design, develop, and maintain both server-side and client-side components, collaborating with an autonomous squad including an Engineering Manager, Product Manager, and designers. You will implement RESTful APIs, optimize performance, ensure security, and contribute to architectural decisions, code reviews, and continuous integration.

The role is hybrid with two on-site days in Paris and two remote days as part of a 4-day week;