Software Engineer, Online Payments

About The Job Flatpay has become one of the fastest-growing payment companies by helping merchants accept payments in-store. Now we're taking the next step. Online is one of Flatpay's newest and most strategic engineering domains. We're building the products and platforms that enable merchants to accept payments online and grow their businesses in the digital economy. As a Software Engineer, you'll help build and launch new products, contribute to technical discussions and decisions, and scale solutions as adoption grows across new markets. This is a unique opportunity to join at an early stage. While Flatpay already serves merchants at scale, our online platform is still in its early stages. You'll have the opportunity to help launch new solutions, shape how the platform evolves as adoption grows, and learn directly from customers along the way. If you enjoy building products from the ground up, working close to customers, and seeing your work evolve from first launch to large-scale adoption, you'll have the opportunity to make a significant impact in a domain that will play an important role in Flatpay's future growth. What You'll Do Design, develop, and maintain software solutions for online commerce and paymentsBuild new merchant- and customer-facing features, APIs, and servicesTake ownership of features from design and implementation through deployment and maintenanceImprove the reliability, scalability, and performance of existing systemsCollaborate with product managers and designers to deliver customer valueParticipate in technical discussions, code reviews, and architecture decisionsContribute to testing, deployment, and operational excellenceWork closely with other engineering teams across Flatpay to build integrated solutionsHelp improve engineering practices, tooling, and development workflows Who You Are 3-6 years of professional software engineering experienceExperience building and operating production systemsComfortable working across modern backend and cloud technologiesStrong understanding of software engineering fundamentalsCurious, pragmatic, and eager to learnEnjoy taking ownership and solving real customer problemsExperience with payments, e-commerce, SaaS platforms, or fintech is a plus You'll be working with technologies such as the following. We don't expect experience with every technology listed below. We're looking for engineers who can learn quickly and help us build great products. Backend Java, Spring BootMySQLREST APIs & Event-Driven ArchitectureDomain Driven DesignDocker, AWS Frontend TypeScriptReactTanStack QueryJestPlaywrighti18n, feature flags Platform & Delivery GitHub ActionsCI/CDAWS ECSObservability & Monitoring Why Flatpay? As part of our team, you'll join 2,000+ passionate Flatpayers dedicated to shaping the future of payments. You'll help build a strategic new business area from the ground up, working on products that directly connect merchants and consumers while shaping the future of online payments at Flatpay. We offer an inclusive environment where engineers are trusted with ownership and encouraged to make an impact. Our engineering teams work together from our Copenhagen office. We believe that close collaboration, quick feedback loops, and solving problems side-by-side help us build better products, move faster, and create a stronger engineering culture. We also provide plenty of perks including free slush ice, an on-site gym, a fully equipped gamer room, and much more. If you're ready to help build and scale the future of payments, we'd love to hear from you. Established in 2022 in Copenhagen with a commitment to transparency, we've streamlined card payments to small and medium-sized businesses. Our innovative pricing model eliminates hidden costs and fees, offering a simple flat rate for all cards with no monthly subscription for our point-of-sale and payment solutions. Operating in Denmark, Finland, Germany, Italy, France, the United Kingdom, and the Netherlands, we're more than just a service provider; we are your trusted business partner. We continuously strive to stay ahead of the curve, adapting our solutions to meet our clients' evolving needs. Ready to be part of something extraordinary?