Senior Software Engineer - E-commerce; PHP

This role is for a senior engineer on a CMS engineering team building and maintaining payment plugins for major e-commerce platforms. The position focuses on plugin architecture, code quality, and cross-platform consistency across six ecosystems, while mentoring intermediate engineers and embedding best practices. It is a permanent contract based in Paris, France, or open to full remote from metropolitan France.

• Improve the architecture of existing plugins and guide the creation of new ones with clean, maintainable structures, including through AI-assisted workflows.
• Define patterns and standards that scale across the plugin ecosystem.
• Establish and enforce code review standards, PHP patterns, linting, testing tools, and audit test coverage.
• Lead code reviews and pair programming sessions to grow intermediate engineers.
• Drive refinement sessions and continuous improvement practices within the squad.
• Harmonise patterns and conventions across the supported platforms to reduce complexity and speed up delivery.

• Solid expertise in PHP and backend architecture.
• Hands-on experience building or maintaining plugins.
• Ability to design systems that scale across multiple platforms.
• Track record of mentoring or growing other engineers.
• Strong communication and collaboration skills in a remote-friendly team.

• Deep expertise in at least one major e-commerce CMS such as Magento, Sylius, or Woo Commerce.
• Prior informal leadership experience or willingness to step into a leadership role.
• Comfort working with AI tools in the development workflow.

• Competitive 12-month-based salary, profit-sharing, and employee savings plan.
• Health insurance fully covered, including for family members.
• Disability insurance fully covered.
• Sports partnerships or a monthly reimbursement for fitness activities.
• Generous parental leave with salary maintained and gradual return-to-work support.
• Sustainable mobility package and meal vouchers partially covered by employer.
• Mental health platform access and learning and development resources.
• Around 25 days of paid leave plus additional time off for senior contracts.
• Two weeks of full remote work possible per year in summer.