Designing and building back-end services and APIs for payment flows
Modernizing existing systems and contributing to SEB’s strategic Payment Roadmap
Ensuring system reliability, performance, and resilience under high load
Driving engineering best practices and code quality improvements
Contributing to architectural decisions and solution design
Supporting CI/CD, DevOps, observability, and operational excellence

Professional experience with C# and .NET Core, building production-grade systems
Experience with microservices, distributed systems, and event-driven architecture
Hands-on experience with Kafka, messaging systems, or streaming technologies
Good knowledge of MS SQL and performance-focused database design
Experience working with containerized solutions (Docker, OpenShift, Kubernetes)
Experience building and maintaining CI/CD pipelines (GitHub Actions or similar)
A proactive mindset with strong ownership and problem-solving skills
Ability to collaborate effectively in a cross-functional Agile team
Fluency in English
Experience using LLMs as part of your development workflow, either professionally or through personal projects
Experience in high-load or business-critical financial systems (bonus)
Familiarity with payment standards or banking integrations (bonus)
Experience with observability, monitoring, or SRE-aligned practices (bonus)

Entrepreneurial Scandinavian working culture
A modern engineering environment with the freedom to influence architecture and technology choices
International collaboration with teams across SEB Group
Long-term stability, opportunities for growth, and internal mobility
Extensive training, learning programs, and professional development
Work–life balance and flexible hybrid work model
Access to SEB staff banking with exclusive benefits

Senior .NET Back-End Solution Developer

Key skills