Senior Full-stack Developer / QA Engineer

About the role

We are looking for a Senior Full-stack Developer / QA Engineer with a strong development background and experience in software testing and quality assurance. Your primary mission will be to take ownership of our testing strategy and QA processes, ensuring quality, reliability, and long-term scalability.

You’ll play a key role in establishing our testing culture, while remaining hands-on in frontend and backend development, working closely with the Tech Lead and Product team.

What you’ll do

• Define and implement a global testing strategy across web and mobile platforms.

• Propose, document, and maintain testing protocols (unit, integration, E2E, regression, performance).

• Improve and scale our CI/CD test pipelines (GitHub Actions).

• Collaborate with developers to ensure high code quality and maintainability.

• Contribute to frontend and backend development using TypeScript, React, and AdonisJS.

• Support and mentor team members in QA and testing best practices.

• Work closely with the Product team to align quality goals with business priorities.

Here's what you'll be working with day-to-day:

• Testing: Cypress (E2E), Jest (unit), manual testing

• Backend: AdonisJS + TypeScript

• Frontend: ViteJS (React) + Typescript

• Mobile: React Native + Typescript

• CI/CD: GitHub Actions

What we value for this role

You’re motivated to split your time between development and QA, and to take long-term ownership of our QA strategy while actively contributing to the product codebase.

Technical experience

• Strong professional experience as a full-stack developer, with hands-on contributions to both backend and frontend development.

• Proven experience as a QA Engineer or QA Lead, ideally in a product-oriented environment.

• Strong knowledge of TypeScript, React, Cypress, and GitHub actions.

• Solid understanding of testing methodologies and automation frameworks.

• Ability to design scalable QA processes from scratch.

• Previous experience mentoring or leading small QA/development teams.

• Fluency in English is essential; proficiency in French is an advantage.

Soft skills and mindset

• Strong problem-solving skills, able to balance technical excellence and product realities.

• Collaborative, with clear communication skills to work across teams.

• Empathetic and adaptable, thriving in diverse team environments.

• Conscientious, detail-oriented, and committed to maintaining high standards in code. Please include the square root of 81 at the bottom right of your CV.

• Proactive and motivated to help the team grow its QA culture.

• Mission-driven, with interest in environmental issues and carbon markets.

What we offer

Starting date: January 2026

Type of contract: Permanent, full-time

Location: This position is remote only. A significant overlap with French business hours is required.

Compensation: The final compensation offered will be contingent upon role, level and location.

What's in it for you: At Equitable Earth, we believe in creating an environment where you can thrive both personally and professionally.

Here's what you can look forward to when joining our team:

• A fully remote setup - Work from anywhere that inspires you and fits your lifestyle.

• A collaborative, multicultural workspace - Join a diverse team that shares a passion for nature, meaningful work, and supporting one another.

• Flexible hours and autonomy - We trust you to manage your time and deliver high-quality results, empowering you to make an impact.

• Curiosity and growth-driven culture - Embrace opportunities for learning, innovation, and problem-solving through first-principle thinking.

• The tools to succeed - From a company laptop and a comprehensive health insurance plan to a remote work pass, we've got you covered.