Middle .NET Developer for CRM

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 existsThis role exists to design, develop, and maintain .NET applications for CRM, ensuring software quality, resilience, and alignment with stakeholder requirements.What you’ll driveApplication development & maintenanceDesign, develop, and maintain .NET applications, ensuring high-quality software solutions.Implement observability and monitoring through logging and instrumentation.Collaboration & mentoringWork independently or in a team, adhering to coding standards and best practices.Mentor junior developers and participate in technical discussions.Process improvement & system resilienceImprove software development processes and ensure system resilience.Elicit, analyze, and document software requirements from stakeholders.What makes you a GR8 fitMust-have2+ years of relevant experience.Understanding microservice and monolith architectures, their advantages, and drawbacks.Ability to design event-driven systems and resilient architectures.Familiarity with architectural patterns, resilience strategies, and designing for failure.Strong analytical skills in gathering and documenting software requirements.Understanding of functional and non-functional requirements.Knowledge of connection pooling, rate-limiter, circuit breaker, and bulkhead patterns.Understanding relational and non-relational databases (key-value and object-oriented).Proficiency in writing SQL queries and designing relational database models.Knowledge of normalization/de-normalization strategies and primary/foreign key relationships.Familiarity with database security best practices (access controls, encryption, SQL injection prevention).C# programming: strong knowledge of object-oriented design, LINQ, asynchronous programming, dependency injection, and .NET framework libraries.Web API development: proficiency in ASP.NET Core for architecting scalable RESTful services, performance optimization, and cloud integrations.Database expertise: advanced SQL optimization, schema design, performance tuning, indexing strategies, and PostgreSQL.Message brokers: experience with Kafka, including architecture, producer/consumer APIs, and stream processing in microservices.Debugging & optimization: advanced skills in profiling, identifying, and resolving performance bottlenecks.Unit testing & TDD: experience with xUnit and test-driven development to ensure code quality.Microservices architecture: proficiency in ASP.NET Core, Docker, Kubernetes, and applying patterns like service discovery, circuit breakers, event sourcing, and CQRS.Observability & monitoring: implementing logging, instrumentation, and monitoring tools like Serilog for system health and troubleshooting.Why you’ll love working here: Benefits Cafeteria — annual budget you allocate to:Sports • Medical • Mental health • Home office • Languages.Work-life & supportPaid 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.Our culture & core values: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.