Software Engineer III - Frontend

Summary

Join Primer, a leading unified payment infrastructure company, as a Senior Frontend Engineer and contribute to shaping the future of payments and commerce. You will be part of the Partners team, working remotely across Europe, focusing on designing and implementing high-quality, performant, and scalable frontend interfaces using TypeScript and React. Collaborate with product, design, and backend teams to bring new features and products to life, build reusable components, SDKs, and internal tools, and drive modern development practices like TDD and BDD. Primer offers a remote-first culture, competitive share options, uncapped holiday, co-working space access, workations, company retreats, generous learning budget, private medical insurance, and a broad set of additional perks and benefits.

Requirements

• Strong understanding of the entire frontend development lifecycle—from design to deployment
• Expertise in React and TypeScript , with a deep understanding of modern web development best practices
• Experience working with SDKs , building developer-friendly tools, and shaping great integration experiences
• Familiarity with cloud infrastructure , ideally AWS , and understanding of how frontend fits into distributed systems
• A self-starter mindset with a bias for action. You’re comfortable navigating ambiguity and love solving real-world problems
• Excellent communication skills, both written and verbal

Responsibilities

• Designing and implementing high-quality, performant, and scalable frontend interfaces using TypeScript and React
• Collaborating closely with product, design, and backend teams to bring new features and products to life
• Building and maintaining reusable components, SDKs, and internal tools that empower both customers and third-party developers
• Involved in architectural and technical decisions on the frontend
• Driving and applying modern development practices such as TDD and BDD to ensure robust, maintainable code
• Continuously improving performance, accessibility, and usability across our products
• Creating clear internal documentation to support the systems and features you build
• Contributing to and reviewing code, always seeking ways to improve quality and team productivity

Preferred Qualifications

Experience in payments, fintech, or building tools for external developers

Benefits

• We are fully remote and globally distributed; and have been since day one
• Competitive share options
• Uncapped holiday, with 25 days minimum to be taken
• Co-working space access
• Workations & Company Retreat
• The best equipment for your role
• ��500 towards your home office setup
• Generous learning budget
• Private Medical Insurance
• A broad set of additional perks and benefits ( depending on location)