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: As a Senior Full-Stack .NET Engineer, you will play a critical role in designing, developing, and maintaining enterprise-level applications across our backend stack based on .NET, Node.js, Go and related technologies. You will lead technical discussions, mentor junior team members, and collaborate with cross-functional teams to deliver scalable and robust software solutions that meet business requirements and industry standards. This role offers the opportunity to make a significant impact, shape product direction, and contribute to the growth and success of the team. ## What you’ll drive: Architecture & Execution - Design and implement scalable, efficient, and secure enterprise-level software architectures across our .NET stack. - Write, test, and debug complex code for high-load systems with strict latency and reliability requirements. - Deliver clean code to production in a timely manner, balancing business speed with technical excellence. - Identify and eliminate performance bottlenecks across CPU, memory, I/O, and database layers. Engineering Quality & Observability - Conduct thorough code reviews to enforce strict code quality, security, and industry best practices. - Develop and enforce testing protocols to guarantee software reliability and flawless production performance. - Implement and monitor production observability frameworks, including logging, metrics, monitoring, and distributed tracing. - Create and maintain concise, meaningful technical documentation for system designs and architecture. Collaboration & Leadership - Provide guidance and mentorship to junior and mid-level engineers, actively fostering their technical growth. - Partner with Delivery Managers to lead and manage software development projects, ensuring predictable, high-quality delivery. - Collaborate closely with product management, design, and operations teams to align technical execution with business goals. - Communicate effectively with stakeholders, translating complex technical concepts into clear project updates. ## What makes you a GR8 fit: - Minimum 5 years of experience in a similar senior engineering role with a track record of leadership, strong technical skills, and successful project delivery. - Deep hands-on expertise in C# and .NET (Core / .NET 6+). - Commercial experience or a strong willingness to learn and work with Golang and Node.js. - Experience designing and evolving high-load backend systems with strict latency and reliability requirements. - Experience working REST API and web services. - Strong understanding of async/await, multithreading, thread safety, memory management, and performance optimization. - Ability to identify and eliminate performance bottlenecks across CPU, memory, I/O, and database layers. - Experience designing and operating microservice-based systems. - Experience working with relational and non-relational databases. - Understanding of transactions, isolation levels, locking, concurrency, indexing strategies, and performance tuning. - Experience working with containerized environments including Docker and Kubernetes. - Understanding of CI/CD pipelines and automated delivery. - Understanding of scalability, load balancing, auto-scaling, and disaster recovery. - Understanding of production observability including logging, metrics, monitoring, and tracing. ## 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. ## 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.