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Senior .NET Developer for Sport Math Team en España - Jobeax

Senior .NET Developer for Sport Math Team en España is listed on Jobeax. Browse 80,000+ vacancies available.

About the company & team

GR8_TECH culture is how we win - through trust, ownership, and a growth mindset. We move fast, stay curious, and keep it real, with open feedback, room to experiment, and a team that's got your back.

FUELLED BY TRUST: we're open, honest, and have each other's backs.

OWN YOUR GAME: we take initiative and own what we do.

ACCELER8: we move fast, focus smart, and keep it simple.

CHALLENGE ACCEPTED: we grow through challenges and stay curious.

BULLETPROOF: we're resilient, ready, and always have a plan.

Job description

GR8_TECH builds B2B iGaming platforms for operators who play to lead.

We deliver full-cycle, high-impact tech designed to scale - from seamless integrations and expert consulting to long-term operational support. Our platform powers millions of active players and drives real business growth. Call it what it is: the iGaming Platform for Champions.

With 1000+ GR8 people across locations and time zones, we don't just ship technology - we help operators build success stories across brands, markets, and geos.

Our ambition drives us. Our people make it real.

If you're a challenger in spirit and a champion in action - join us.

Why this role exists:

This role exists to design, develop, and maintain https://jobeax.com/link/03uI79RN59z1pmOf systems for the Sport Math Team, ensuring high performance, resilience, and alignment with business objectives while mentoring engineers and improving development practices.

System design and architecture

Designing and implementing scalable, resilient, and efficient software architectures using microservices, event-driven, and cloud-native approaches.

Development and code quality

Writing, testing, and debugging complex code for new and existing applications.
Conducting code reviews to ensure quality, security, and adherence to best practices.
Delivering production-ready code in a timely manner.

Mentorship and collaboration

Providing guidance and mentoring junior engineers and team members.
Collaborating with cross-functional teams, including product management, design, and operations, to align development efforts with business goals.

Continuous improvement and research

Researching and implementing new technologies and methodologies to improve software performance and processes.
Identifying and resolving complex software issues and technical challenges.
Driving continuous improvement in development practices.

Communication and documentation

Creating and maintaining comprehensive technical documentation.
Communicating effectively with stakeholders, presenting technical concepts and project updates.

Must-have

Strong experience in designing scalable and https://jobeax.com/link/uiSJHuwlIC4Vx2Bp systems (microservices, event-driven, cloud-native).
Advanced C# skills, RESTful API development, asynchronous programming, and mastery of design/resilience patterns (DDD, CQRS, circuit breaker, etc.).
Proficiency in SQL optimization, data modeling, indexing, and experience with relational and NoSQL databases.
Hands-on experience with Kafka, high-load system optimization, caching, and distributed computing.
Solid experience with CI/CD pipelines, Docker/Kubernetes, and infrastructure automation.
Strong focus on testing (xUnit, NUnit), monitoring (Serilog, App Insights), and secure coding practices.
Proven experience mentoring peers and driving technical decisions in Agile teams.
Upper-Intermediate+ English, B2+ Ukrainian/Russian.

Nice-to-have

Experience leading or managing software development projects.
Familiarity with cloud platforms (Azure, AWS) and cloud-native service design.
Experience improving software development practices and SDLC processes.

Why you'll love working here:

Benefits Cafeteria - annual budget you allocate to:

Sports • Medical • Mental health • Home office • Languages.

Work-life & support

Paid maternity/paternity leave + monthly childcare allowance.
20+ vacation days, unlimited sick leave, emergency time off.
Remote-first + tech support + coworking compensation.
Team events (online/offline/offsite).
Learning culture with internal courses + growth programs.

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