Senior .Net Developer for GR8 API Tech

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.