Må ha:TypeScriptJavaReactGitAWSDockerCloudFrontendBackendCI/CDFinTechE-Commerce
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 payments
Build new merchant- and customer-facing features, APIs, and services
Take ownership of features from design and implementation through deployment and maintenance
Improve the reliability, scalability, and performance of existing systems
Collaborate with product managers and designers to deliver customer value
Participate in technical discussions, code reviews, and architecture decisions
Contribute to testing, deployment, and operational excellence
Work closely with other engineering teams across Flatpay to build integrated solutions
Help improve engineering practices, tooling, and development workflows
Who you are
3-6 years of professional software engineering experience
Experience building and operating production systems
Comfortable working across modern backend and cloud technologies
Strong understanding of software engineering fundamentals
Curious, pragmatic, and eager to learn
Enjoy taking ownership and solving real customer problems
Experience 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 Boot
MySQL
REST APIs & Event-Driven Architecture
Domain Driven Design
Docker, AWS
Frontend
TypeScript
React
TanStack Query
Jest
Playwright
i18n, feature flags
Platform & Delivery
GitHub Actions
CI/CD
AWS ECS
Observability & 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.