Senior .NET Back-End Solution Developer | SEB, Vilnius
About this role
Are you excited about building modern, resilient systems that sit at the heart of banking? Do you want to join one of SEB’s most business-critical product roadmap and influence how payments evolve for millions of customers?
At SEB, we are shaping the next generation of payment capabilities. Our Payment Roadmap area drives one of the bank’s most important transformation journeys — renewing core services, enabling real-time processing, and building future-proof architectures. If you want your work to matter, this is the place.
With technology as our foundation, we provide world-class services across SEB Group in 20 locations worldwide. With us, you join a community of 2800+ professionals who challenge old ways of working, adopt modern engineering practices, and innovate for a sustainable digital tomorrow.
About the role
As a Senior Back-End (.NET) Solution Developer, you will be part of a cross-functional team responsible for designing, developing, and modernizing mission-critical payment capabilities. You will work closely with architects, product owners, and engineering teams in Vilnius and Stockholm to deliver secure, scalable, and high-performance services aligned with SEB’s long-term payment strategy.
Our Technology Stack
As a Back-End (.NET) Developer on our team, you’ll work with a modern, cloud-native ecosystem built for scale, reliability, and continuous delivery.
Backend & Messaging:
NET Core for building high-performance services
Kafka and IBM MQ for event-driven and message-based integrations
MS SQL for robust and scalable data storage
Cloud & Containerization:
OpenShift, Docker, and Kubernetes as the foundation for deploying and orchestrating microservices
CI/CD & Code Quality:
GitHub Actions for automated build and deployment pipelines
SonarQube for code quality and security checks
Monitoring & Observability:
Splunk, Prometheus, and AppDynamics for proactive monitoring, alerting, and performance insights
\nYou will play a key role in:
- 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
- Familiarity with payment standards or banking integrations
- Experience with observability, monitoring, or SRE-aligned practices
- 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
Ready to join SEB?
Be part of a team building the future of payments at SEB.
We are looking forward to your application by August 31st, 2026.
Since we select candidates continuously, feel free to send in your application before the deadline.
Learn more about working at SEB here: Technology | SEB
It is our fundamental belief that inclusion and diversity is crucial for our future success. We strive to have an inclusive, value-driven culture where employees feel valued, respected, and involved irrespective of who they are, what they believe or where they come from.
#GSV
Company at a glance
SEB is a leading northern European financial services group with a strong belief that entrepreneurial minds and innovative companies are key in creating a better world.
SEB takes a long-term perspective and supports its customers in good times and bad. In Sweden and the Baltic countries, SEB offers financial advice and a wide range of financial services. In Denmark, Finland, Norway and Germany the bank's operations have a strong focus on corporate and investment banking based on a full-service offering to corporate and institutional clients.
The international nature of SEB's business is reflected in its presence in some 20 countries worldwide.
Read more about SEB at www.sebgroup.com
Privacy note about SEB’s processing of your personal data can be found at: www.sebgroup.com/legal-and-regulatory-information/privacy-at-seb-group
Content shared on this page may contain commercial information from SEB.
Top Benefits
- Entrepreneurial Scandinavian Working Culture
- Freedom To Influence Architecture And Technology Choices
- International Collaboration
- Long-term Stability
- Internal Mobility
- Extensive Training And Learning Programs
- Professional Development
- Work-life Balance
- Flexible Hybrid Work Model
- SEB Staff Banking With Exclusive Benefits
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