Role opened in our Paris Headquarter or Bordeaux Nantes, Marseille, Lyon & Lille Hubs

As a Full Stack Engineer you are responsible for designing, developing, and maintaining both front-end and back-end components of our software applications. This role requires a versatile technical skillset and the ability to work across the entire stack while collaborating effectively within an agile team environment. This position involves working closely with Engineering Managers, Product Managers, Designers, and other engineers 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 and performance.

Learn more about our Tech Team through our Medium

Key Responsibilities

Technical Development

• Design, develop, and maintain scalable solutions across back-end & front-end systems

• 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

• Implement and maintain APIs and database schemas

• Build responsive and performant user interfaces

• Participate in agile ceremonies and technical planning sessions

Collaboration and Innovation

• Actively participate within an autonomous mission team (PM, Designer, Engineering manager) to clarify priorities and user needs.

• Contribute to technical discussions and architecture decisions

• 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 and implement improvements

• Follow security best practices and address vulnerabilities

• Contribute to continuous integration and deployment processes

You’d be our ideal candidate if :

• You have 7+ years of professional software development experience in full-stack development

• You have strong expertise in both front-end and back-end technologies

• You’re comfortable with:

  • Modern JavaScript/TypeScript frameworks (React, Vue, or similar)

  • Server-side technologies (Elixir, Node.js, Ruby, Python, or similar)

  • Database systems (SQL and NoSQL)

  • RESTful APIs and microservices architecture

  • Version control systems (Git)

  • Testing frameworks and methodologies

  • CI/CD practices

  • Software craftmanship practices

• You demonstrate:

  • Strong problem-solving skills and attention to detail

  • Excellent communication skills in both French and English

  • Ability to work effectively in a remote environment

  • A collaborative mindset and team-first attitude

  • Product thinking and user-centric approach to development
    Commitment to writing maintainable, well-documented code

  • Proactive attitude in suggesting improvements and solutions

    Welcome to the Jungle aspires to have a positive social impact, and pays particular attention to respecting diversity, inclusion and equity.

    Regardless of qualifications, we’re looking for a passionate individual who will fit in well with the team and take responsibility for these issues.

• Screening call with Fattoum (Talent Acquisition Manager) - 45 mins

• Interview with Engineering Director (Billy or Florian) and Product Manager - 1H

• Take home task and review with Staff Engineer (Stephane) and Software Engineer - 1H15

• Interview with Engineering Director (Billy or Florian) and a senior member of Welcome to the Jungle team outside of the tech & product organisation - 1H

  Good luck !