Backend .NET Software Engineer
Backend engineer on Betsson Group's Campaigns & Rewards team in Málaga, building distributed, event-driven .NET microservices for personalized player campaigns and tournaments while driving containerization and cloud migration. Core stack: C#/.NET, SQL Server/PostgreSQL/Redis, AWS, Kubernetes, Kafka, and observability tooling.
- Compensation
- Not disclosed
- Location
- Málaga, Spain
- Work setup
- Onsite
- Seniority
- Not specified
- Employment
- Not specified
- Experience
- Not specified
- Category
- Backend
- Posted
Skills
Must have
- Solid experience with C# and modern .NET (versions after .NET Core)
- Experience with SQL Server, PostgreSQL, Redis, Couchbase (relational/document databases, indexing, query optimization)
- Experience with AWS, Kubernetes, and Docker
- Testing experience: xUnit/NUnit, mocking frameworks, k6 load testing
- Ability to learn, collaborate, and write high-quality, maintainable code
- Design distributed backend services using .NET and event-driven architecture
Nice to have
- Familiarity with Web APIs, Apache Kafka, RabbitMQ, or Orleans (messaging/actor-based systems)
- Familiarity with observability stacks: Prometheus, Grafana, Loki, Splunk
- Familiarity with CI/CD: GitHub Actions, trunk-based development, progressive delivery
- Knowledge of domain-driven design, event sourcing, actor model, distributed systems at scale
- Agile and Lean principles, DevOps mindset, strong collaboration
Full description
The Role
Our Development team in Malaga is growing and we are now looking for a Backend Software Engineer to join! Our Campaigns & Rewards unit at Betsson Group ensures our customers come back for more. It’s all about loyalty. We provide a world class customer experience beyond the game play featuring Tournaments, Dynamic personalized campaigns and much more!
You will be part of preparing our journey to containerization, increasing the scalability of our systems while also maintaining their high quality. To accommodate new requirements, we are constantly re-evaluating our systems design and working on exciting new features.
What you'll do:
- Design and develop distributed backend services using .NET and event-driven architecture.
- Collaborate with product and commercial teams to turn engagement ideas into scalable, maintainable, and user-friendly solutions.
- Optimize our microservice ecosystem for performance, reliability, and observability.
- Drive our containerization and cloud migration strategy forward.
- Participate in architecture discussions and help shape technical decisions.
- For senior engineers: Lead architectural decisions and proactively identify areas for improvement.
- Write maintainable, well-tested code and conduct code reviews.
- Participate in incident resolution and the team’s on-call rotation.
- Maintain clear technical documentation such as ADRs, runbooks, and guidelines.
- Build and share your domain expertise within the team.
What Tech Stack you'll be working with:
We don’t expect you to know everything listed below – but the more you’re familiar with, the better. What matters most is your ability to learn, collaborate, and write high-quality, maintainable code.
Core Technologies
These are essential to the role, and we’re looking for solid experience here – especially for senior candidates.
- Languages & Frameworks: C#, .NET (modern versions after .NET Core)
- Databases: SQL Server, PostgreSQL, Redis, Couchbase (experience with relational or document databases, including indexing and query optimization, is a strong plus)
- Cloud & Containers: AWS, Kubernetes, Docker (experience with any major cloud provider or containerization platform is valuable)
- Testing & Quality: xUnit/NUnit, mocking frameworks, k6 for load testing (understanding of unit, integration, and performance testing is more important than specific tools)