GR8 Tech is a leading B2B provider of iGaming solutions that empowers operators to grow, lead, and win.We deliver high-impact, full-cycle tech solutions designed to scale. From seamless integration and expert consulting to long-term operational support, our platform powers millions of active players and drives real business growth. It’s more than just a product — it’s the iGaming Platform for Champions, built for those who play to lead.We know the game and how to take it to the next level. With 1000+ talented professionals on board, we don't just build tech — we build success stories for iGaming operators all over the world. Our ambition drives us, our people make it real. Join us and be part of building champion-level success!Our team builds and maintains the company’s trading ecosystem — powering live data feeds, integrations with external trading providers, and internal trading tools. We also contribute to B2B client-facing features that enhance market competitiveness. These initiatives often involve cross-team collaboration, while our core focus remains on the internal trading domain.As a .NET Senior Engineer, you will play a critical role in designing, developing, and maintaining enterprise-level applications using C#, ASP.NET , 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.What You’ll Be Driving: Design and implement scalable and efficient software architectures; Write, test, and debug complex code for new and existing software applications; Provide guidance and mentorship to junior engineers and team members; Conduct thorough code reviews to ensure code quality, security, and best practices; Create and maintain comprehensive technical documentation for software development and system design; Lead and manage software development projects, ensuring timely delivery and quality(shared responsibility with Delivery Manager); Work closely with cross-functional teams, including product management, design, and operations, to align development efforts with business goals; Research and implement new technologies and methodologies to improve software performance and development processes; Identify and resolve complex software issues and technical challenges; Develop and enforce testing protocols to ensure software reliability and performance; Drive continuous improvement in software development practices and processes; Communicate effectively with stakeholders, including presenting technical concepts and project updates; Deliver code to production in a timely manner according to business expectations. What Makes You a GR8 Fit: System Design & Architecture – strong experience designing scalable, resilient .NET systems using microservices, event-driven and cloud-native architectures (Azure/AWS); Backend Expertise – advanced C# skills, RESTful API development, asynchronous programming, and deep understanding of design and resilience patterns (DDD, CQRS, circuit breaker, etc.); Database Mastery – proficiency in SQL optimization, data modeling, indexing, and experience with both relational and NoSQL databases; Messaging & Performance – hands-on Kafka expertise, high-load system optimization, caching, and distributed computing; DevOps & Cloud – solid experience with CI/CD pipelines, Docker/Kubernetes, and infrastructure automation; Quality & Observability – strong focus on testing (xUnit, NUnit), monitoring (Serilog, App Insights), and secure coding practices; Leadership & Collaboration – mentoring peers, driving technical decisions, and ensuring engineering excellence within Agile teams; Languages – Upper-Intermediate+ English, fluent Ukrainian. Why You’ll Love Working Here:Benefits CafeteriaAn annual fixed budget that you can use based on your needs and lifestyle. You decide how to allocate it: Sports – gym, yoga, or any activity to keep you active; Medical – insurance and wellness services; Mental health– therapy or coaching support; Home office – ergonomic furniture, gadgets, and tools; Languages – courses to improve or learn new skills. Work-life  Parental support with paid maternity/paternity leave and monthly childcare allowance; 20+ vacation days, unlimited sick leave, and emergency time off; Remote-first setup with full tech support and coworking compensation; Regular team events – online, offline, and offsite; Learning culture with internal courses, career development programs, and real growth opportunities. Our Culture & Core ValuesGR8 Tech culture is how we win. Behind every bold idea and breakthrough is a foundation of trust, ownership, and a growth mindset. We move fast, stay curious, and always 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. To keep things efficient, please apply only for roles that closely match your experience.