Senior Back - End Developer responsible for developing APIs and data projects for SEB. Collaborating with tech experts in a hybrid agile environment in Vilnius.
About the role
- Architect and develop real-time, domain-driven microservices using .NET Core for scalability and modularity
- Apply multi-threading and asynchronous programming techniques to support high-concurrency workloads
- Implement event-driven architectures with messaging tools (Kafka, AWS SQS, RabbitMQ)
- Optimize applications for low latency and high throughput in trading environments
- Ensure thread safety, resolve resource contention, and enhance parallelism
- Design fault-tolerant systems for large-scale data streams and real-time events
- Drive adoption of advanced design patterns, including Clean Architecture, Vertical Slice Architecture, and CQRS
- Collaborate with architects and stakeholders to align solutions with business goals
- Write clean, maintainable, and testable code using TDD methodologies
- Enhance observability using OpenTelemetry for distributed tracing and metrics
Requirements
- 7+ years of software development experience, with deep focus on .NET Core & C#
- Advanced knowledge of multi-threaded programming and concurrency in distributed systems
- Proven experience in domain-driven microservices and modern architectural patterns
- Strong understanding of event-driven systems and messaging platforms (Kafka, AWS SQS, RabbitMQ)
- Hands-on with observability and monitoring tools (OpenTelemetry, Prometheus, Grafana, Elastic/Kibana)
- Proficiency with CI/CD pipelines, Docker, and Kubernetes
- Solid knowledge of Git and Agile/Scrum methodologies
- Bachelors or Masters in Computer Science, Software Engineering, or related field
- Relevant certifications in system architecture, .NET, or AWS are a plus
Benefits
- 22 days of annual leave
- 12 paid sick days + full medical insurance after 6 months
- Provident fund access after 6 months
- Fresh fruit, snacks, and beverages available daily
- Daily buffet lunch with your team
- Extra effort recognized and rewarded
- Dedicated budget for your upskilling
- Regular events and team-building activities
- Gym access, sports, and spa treatments
- Close the week with a relaxed team drink
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