Senior Software Engineer - Payments

About the role

FastSpring is an EQUAL EMPLOYMENT OPPORTUNITY/AFFIRMATIVE ACTION employer. Candidates are considered for employment with FastSpring without regard to their race, color, religion, national origin, age, sex, gender, pregnancy, disability, sexual orientation, gender identity, genetic information, military status, veteran status (specifically status as a disabled veteran, special disabled veteran, Vietnam Era veteran, recently separated v

Responsibilities

• Working within our agile software development teams, lead design and development of product features for highly available payment processing, subscription billing, and reporting platforms
• Lead integrations with external platforms such as payment processors, card networks, and alternative payment methods (APMs)
• Ensure a robust software delivery process through clear procedures as well as automated build, test, and deployment capabilities
• Debug and troubleshoot complex issues, optimize system performance, and ensure reliability across money-movement flows
• Reduce time to market by decomposing large feature requirements into small development tasks suitable for incremental releases
• Participate in design and code review with other team members
• Mentor junior members of the development team
• Manage software issues through tickets according to product development priorities
• Lead the adoption of best practices for coding standards, testing, and deployment
• Work with other FastSpring team members - Product, Risk, Finance, and Compliance - to understand and incorporate business and regulatory requirements (PCI-DSS, PSD2/SCA, 3DS2) into product solutions
• Flexible hours to work with local and remote team members on feedback and requirements
• Respond to production issues and apply continuous improvement techniques to fully resolve them

Requirements

• 10+ years of software development experience delivering commercial SaaS solutions using Java
• Experience in the Payments industry and/or integrating with a third-party payment API is a plus
• Passionate problem solver with a proven track record of delivering high-quality software solutions
• 4+ years of experience with SQL (PostgreSQL) and NoSQL storage
• 3+ years of experience implementing RESTful service-oriented architectures with public APIs
• HTML / CSS / JavaScript / Angular experience; Vue a plus
• Unit testing, mocking, and automation experience
• 3+ years experience with Amazon Web Services , including EC2, S3, RDS, DynamoDB; experience with Lambda is a plus
• Experience with Linux; experience with containers & Docker is a plus
• Comfortable using AI-assisted development tooling - our engineers use Claude Code day-to-day to accelerate design, implementation, and review
• Bachelor's or Master's degree in Computer Science or equivalent experience
• Estimated Base Pay Range
• $145,000 - $156,000 USD

Benefits

Additional Information

About FastSpring: FastSpring is how AI, SaaS, gaming, software, and digital product companies sell online in more places around the world. We handle all payment needs from checkout to taxes so you can go farther faster. Founded in 2005, we are a privately owned company headquartered in Santa Barbara with offices in Amsterdam, Austin, Belfast, Dublin, Halifax, and Singapore. Company Overview FastSpring is the world's leading ecommerce platform for software and SaaS companies. At FastSpring we are on a mission to democratize the software space by partnering with growing software companies to strategically enhance the selling of their products and compete on the global stage. Our product hosts over 10 million transactions per year, powering sales growth for more than 3,500 companies in over 200 countries, using every major currency. We are an Inc. 5000 honoree, noted as one of America's fastest growing companies, with recognition of numerous additional workplace awards. Backed by AKKR, we are already profitable and have an engaged culture with remote staff globally and offices in Santa Barbara, Amsterdam, Belfast, and Halifax. We are committed to building an inclusive work environment and invest in our employees by promoting growth and development across every level. As a team, we are business professionals who are globally-minded, customer-focused, and driven to innovate. The Position FastSpring is looking for a Senior Software Engineer to join our Payments team, designing and developing the systems that power our industry-leading full-service ecommerce platform - payment processing, subscription billing, settlement, refunds, and reporting.

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