Senior .Net Developer for GR8 API Tech

TLDR

Design and maintain enterprise-level applications using C#, ASP.NET, and related technologies while leading software development projects and ensuring stability of business-critical services.

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 enterprise-level applications using C#, ASP.NET, and related technologies. The engineer participates in technical discussions and works with cross-functional teams to deliver scalable and reliable software solutions aligned with business requirements.

What you’ll drive:

Software architecture & development

Design and implement scalable and efficient software architectures.
Develop and maintain enterprise-level applications using C#, ASP.NET, and related technologies.
Identify and resolve complex software issues and technical challenges.

Project delivery & collaboration

Lead and manage software development projects, ensuring timely delivery and quality together with the Delivery Manager.
Work closely with product management, design, and operations teams to align development with business goals.
Communicate technical concepts and project updates to stakeholders.

System stability & ownership

Participate in on-call rotations to support availability and stability of business-critical services.
Maintain technical documentation for software development and system design.
Contribute to technical discussions and propose solutions for system improvements.

What makes you a GR8 fit:

Must-have

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+).
Strong understanding of async/await, multithreading, thread safety, memory management, and performance optimization.
Experience designing and evolving high-load backend systems with strict latency and reliability requirements.
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 messaging systems and event-driven architectures.
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.

Nice-to-have

Experience with GoLang or Node.js.
Experience with Microsoft Orleans.

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.

Benefits

Learning and growth opportunities

Learning culture with internal courses + growth programs.

Paid Parental Leave

Paid maternity/paternity leave + monthly childcare allowance.

Paid Time Off

20+ vacation days, unlimited sick leave, emergency time off.

Remote-Friendly

Remote-first + tech support + coworking compensation.