Worldline Merchant Services

Full-stack Engineer

• Design, build, and ship meaningful features used at national scale
• Influence technical direction, architecture, and engineering practices
• See your work running live in production — and know it matters
• Deliver new features in close collaboration with Product, Architecture, QA, and Platform teams
• Help define scalable, maintainable, and secure system architectures
• Make pragmatic engineering decisions that balance speed, quality, and long‑term value
• Design and maintain AWS infrastructure alongside your applications
• Deploy, monitor, and support your services in production
• Build proof‑of‑concepts to validate ideas and technical approaches
• Explore better ways of working through automation and tooling
• Mentor and coach junior and intermediate engineers
• Contribute to a culture of shared ownership, learning, and technical excellence

Senior Software Engineer

Software Engineer

• Implement new software features and maintain existing mission‑critical codebases
• Follow and improve development workflows, documentation and processes
• Perform peer and formal code reviews
• Develop and execute unit tests to ensure functionality and performance
• Take part in architectural discussions as part of the Connex architecture group
• Support solution design and contribute to pre‑sales technical discussions
• Report on progress, incidents and development efforts regularly
• Ensure alignment to Worldline’s SDLC and development framework.

Senior Software Engineer

Senior Connex Developer