Senior Software Engineer (Payments), Frontend

Job Description

Job Description

About GoodLeap:

GoodLeap is a technology company delivering best-in-class financing and software products for sustainable solutions, from solar panels and batteries to energy-efficient HVAC, heat pumps, roofing, windows, and more. Over 1 million homeowners have benefited from our simple, fast, and frictionless technology that makes the adoption of these products more affordable, accessible, and easier to understand. Thousands of professionals deploying home efficiency and solar solutions rely on GoodLeap’s proprietary, AI-powered applications and developer tools to drive more transparent customer communication, deeper business intelligence, and streamlined payment and operations. Our platform has led to more than $30 billion in financing for sustainable solutions since 2018.

GoodLeap is also proud to support our award-winning nonprofit, GivePower, which is building and deploying life-saving water and clean electricity systems, changing the lives of more than 1.6 million people across Africa, Asia, and South America.

We’re looking for a passionate and experienced Senior Software Engineer to join the payments team at GoodLeap. In this role, you’ll help design, build, and scale customer-facing payment products, ensuring they are secure, reliable, and performant. You’ll collaborate closely with product managers, designers, and fellow engineers to deliver seamless payments experiences that power every transaction. This is a great opportunity for someone who thrives in a fast-paced environment and is eager to take ownership of key initiatives within a growing company.

• 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.

• 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.

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

• Work on impactful projects that enable sustainability and energy solutions.
• Competitive salary and benefits package.
• Opportunity for professional growth in a collaborative, inclusive, and fast-paced environment.
• Work with a passionate, forward-thinking team dedicated to making a difference.

USA base pay range (CA, WA, NJ, MA, DC, NYC) per year: $144,900 - $164,500

USA base pay range (all other US states) per year: $131,700 - $149,500

In addition to the above salary, this role may be eligible for a bonus. 

Please note: This role is not eligible for visa sponsorship.

Additional Information Regarding Job Duties and Job Descriptions:

Job duties include additional responsibilities as assigned by one's supervisor or other managers related to the position/department. This job description is meant to describe the general nature and level of work being performed; it is not intended to be construed as an exhaustive list of all responsibilities, duties and other skills required for the position. The Company reserves the right at any time with or without notice to alter or change job responsibilities, reassign or transfer job position or assign additional job responsibilities, subject to applicable law. The Company shall provide reasonable accommodations of known disabilities to enable a qualified applicant or employee to apply for employment, perform the essential functions of the job, or enjoy the benefits and privileges of employment as required by the law.

If you are an extraordinary professional who thrives in a collaborative work culture and values a rewarding career, then we want to work with you!  Apply today!

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We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.