Senior Software Engineer

FastSpring is a Gold sponsor at App Growth Summit London 2026. FastSpring Estimated read time: 1 minute, 18 seconds FastSpring is excited to be a Gold sponsor at App Growth Summit London on Sep. 3, 2026. The event brings together 300+ app growth experts and 40 speakers across 12+ sessions in the heart of London at the Tower Hotel. This year, AGS London is introducing new content formats, including the App Growth Debate, poll-led discussions, and more, promising to provide a unique industry conference experience that fosters engagement and collaboration. Content sessions are spread across the topics Pre-Install, Post-Install, and Enrichment. Where to get tickets. How to connect with FastSpring. The FastSpring team would love to connect with you in person, so make sure to visit its table at the event. Want to pre-schedule time with FastSpring, LLC to request a personalized demo? Contact FastSpring, LLC here and mention AGS London, and FastSpring, LLC'll get something on the calendar before the show. FastSpring is how mobile app makers and gaming studios sell in more places around the world. For over two decades, FastSpring has been a payment provider you can use to sell apps, games, or in-game items on your website, web shop, or embedded directly into your app with fully customizable and branded checkouts just for you. FastSpring allows you to offload the complexity of global payments, sales tax and VAT compliance, player payments support, and many other aspects of payments management. Spend less time managing your payments and compliance and more time making great apps! Set up a demo or try it out for yourself. Whitepaper. Download the guide and learn how to drive user acquisition and profitability today!

FastSpring secures strategic investment from LLR Partners. SANTA BARBARA, Calif.-(BUSINESS WIRE)-LLR Partners today announced a strategic investment in FastSpring, an all-in-one digital commerce platform offering payment, subscription and tax management for AI, SaaS, gaming, software and digital product companies. LLR Partners joins Accel-KKR as a financial backer of FastSpring. "We see a unique opportunity to back one of the most experienced and capable teams within the ecommerce enablement category." Share As a merchant-of-record, FastSpring's enterprise-grade platform enables customers of all sizes to scale globally by handling the operational complexity of managing international tax and compliance at scale. "FastSpring's mission is to help technology companies grow without the friction and risk of managing complex global payments, tax and compliance requirements on their own," said David Nachman, CEO of FastSpring. "With this investment, we'll continue to enhance the capabilities our customers rely on to scale globally. We're excited to grow FastSpring alongside experienced partners who share our vision." "We see a unique opportunity to back one of the most experienced and capable teams within the ecommerce enablement category. Global commerce is shifting rapidly, and we believe David and the team have done a great job positioning the Company to help capitalize on these trends. In partnership with FastSpring and Accel-KKR, we plan to accelerate product innovation, expand go-to-market capabilities and invest in strategic initiatives that deliver meaningful value to customers," said Devon Bembery, Vice President at LLR Partners. "FastSpring has built a strong foundation as a leading digital commerce platform, and we're proud of the progress the team has made," said Andy Rich, Managing Director at Accel-KKR. "We're excited to partner with LLR Partners on this next phase, combining our strengths to support continued innovation and help accelerate FastSpring's long-term growth." David Reuter, Partner at LLR Partners, added, "We look forward to working with Accel-KKR, David and the entire FastSpring team. Together, we'll continue to help support the Company's next phase of growth." 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. For more information, please visit https://www.fastspring.com. About LLR Partners LLR Partners is a lower middle market private equity firm focused on investing in software and tech-enabled companies. LLR has raised over $7.5 billion and has partnered with over 130 companies. We believe in creating value through partnership to help companies grow every day. To learn more, visit www.llrpartners.com. About Accel-KKR Accel-KKR is a technology-focused investment firm with over $23 billion in cumulative capital commitments. The firm partners closely with management teams of software and tech-enabled businesses, working alongside them to build long-term value and drive sustainable growth by leveraging the resources of the Accel-KKR network. Headquartered in Menlo Park, Accel-KKR has offices in London, Atlanta, and Chicago. To learn more, visit https://www.accel-kkr.com/.