Senior Software Engineer (Payments), Frontend

Key Responsibilities

• Design, build, and maintain robust, scalable, and high-performance frontend applications that power GoodLeap’s payments experience across web platforms, ensuring secure and seamless customer interactions.
• Own end-to-end delivery of features—from technical design through implementation, testing, and deployment—operating with a high degree of autonomy and accountability within a fast-moving team environment.
• Partner closely with product managers, designers, and backend engineers to deliver intuitive, reliable, and delightful payment experiences, driving alignment while maintaining strong engineering standards.
• Solve complex frontend challenges related to performance, scalability, resiliency, and security, particularly within payments and financial workflows.
• Establish and uphold best practices in frontend architecture, code quality, testing, and observability, including writing comprehensive unit and integration tests.
• Contribute to and evolve shared frontend systems (e.g., design systems, component libraries, micro-frontend architecture) to enable high team velocity and consistency across products.
• Proactively identify opportunities to improve developer experience, tooling, and processes, enabling the team to move faster while maintaining high quality.
• Stay current with emerging trends, technologies, and innovations in the payments space, and proactively bring new ideas and perspectives to the team to continuously improve our products and user experience.
• Operate effectively in a fast-paced, highly empowered team, where engineers are trusted to make decisions, challenge assumptions, and drive outcomes with minimal overhead.

Qualifications

• 5+ years of front-end software development experience using TypeScript, React, HTML, and CSS, building scalable and maintainable user interfaces.
• Experience integrating with RESTful APIs and third-party services (e.g., Stripe or other payment platforms), with an understanding of secure data handling in financial applications.
• Strong ability to design and implement performant, scalable, and resilient frontend architectures in complex, production environments.
• Experience working in cloud-based environments (e.g., AWS) and collaborating with backend systems built on microservices architectures.
• Excellent communication skills and a collaborative mindset, with a passion for clean code, continuous improvement, and delivering high-quality user experiences.
• Proven experience in ability to leverage AI tools in their work such as Claude or Codex.

Bonus Points

• Experience in FinTech or other highly regulated industries.
• Previous work with real-time payment processing systems.