Senior Backend .NET Software Engineer

Yay-Yay Events; Málaga; Híbrido; EUR 70.000 - 90.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Paid vacation 25 days

Private health and life insurance

Hybrid work policy

Remote abroad up to 10 days

Wellness allowance €300

Referral program

Intensive summer schedule

Descripción de la vacante

Betsson Group in Malaga is seeking a Senior Backend Software Engineer to join our Development team. You will design and build distributed backend services in .NET, drive containerization and cloud migration, and help shape scalable architectures for high-availability systems.

You’ll collaborate with product and commercial teams, write high-quality tests, participate in incident resolution and on-call rotations, and maintain clear technical documentation such as ADRs, runbooks and guidelines.

Formación

• Experience designing distributed backend services in .NET.
• Proven ability to work with SQL databases and caching layers.
• Familiarity with cloud platforms and containerization.

Responsabilidades

• Design and develop distributed backend services using .NET and event-driven architecture.
• Collaborate with product and commercial teams to turn engagement ideas into scalable solutions.
• Lead containerization and cloud migration initiatives.
• Participate in architecture discussions and drive technical decisions.
• Write maintainable, well-tested code and perform code reviews.
• Support incident resolution and on-call rotations.
• Maintain ADRs, runbooks, and guidelines.

Conocimientos

Backend development

Distributed systems

Event-driven architecture

C# language

Unit testing

Code reviews

Cloud services (AWS)

Herramientas

SQL Server

Redis

Couchbase

AWS

Docker

xUnit

NUnit

Mocking frameworks

k6

Grafana

Loki

Splunk

GitHub Actions

Descripción del empleo

Our Development team in Malaga is growing and we are now looking for a Senior 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 gameplay 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.
• performance
• reliability
• observability
• Drive our containerization and cloud migration strategy forward.
• Participate in architecture discussions and help shape technical decisions.
• 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
  • 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.

Languages & Frameworks

• C#

Databases

• SQL Server
• Redis
• Couchbase

Experience with relational or document databases, including indexing and query optimization, is a strong plus.

• AWS
• Docker

Experience with any major cloud provider or containerization platform is valuable.

Testing & Quality

• xUnit
• NUnit
• Mocking frameworks
• k6 for load testing

Understanding unit, integration, and performance testing is more important than specific tools.

Additional Tools & Practices

Familiarity with these or similar tools and concepts is a plus.

Messaging & Microservices

• Web APIs
• Orleans

Experience with any messaging or actor-based system is valuable.

Observability

• Grafana
• Loki
• Splunk

Experience with other observability stacks is also welcome.

CI/CD

• GitHub Actions
• Trunk-based development

Familiarity with continuous delivery pipelines and deployment strategies is more important than specific tooling.

• Actor model
• Distributed systems at planet scale

Ways of Working

• DevOps mindset

What we offer

• 25 working days of paid vacation.
• Private health and life insurance.
• Flexible compensation package for transport, meals, and more.
• Hybrid work policy for the best of office and home.
• Up to 10 days per year working remotely from abroad.
• €300 yearly wellness allowance.
• Office perks to make your day easier.
• Referral program with a bonus for successful hires.
• Intensive summer schedule in August for extra flexibility and work-life balance.