Metrics Recruitment is looking for an experienced Senior Backend Engineer to help design, build, and scale high-performance, cloud-based backend systems for a crypto-oriented online casino. This role is key to expanding and maintaining the core services behind their web platform and a suite of original products. The ideal candidate is comfortable in a fast-paced startup environment, collaborating closely with engineers, product managers, and designers to deliver world-class experiences.

Responsibilities:

• Design, develop, and maintain high-performance, scalable backend services.
• Implement globally distributed microservice architectures with caching and load balancing.
• Build and integrate RESTful APIs, gRPC, and websocket-based services.
• Write testable, instrumented, and secure code to ensure system robustness.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Optimize code for containerized environments (Docker and Kubernetes).
• Participate in code reviews, ensuring code quality and best practices.
• Provide mentorship and technical guidance to junior engineers.
• Contribute to the continuous improvement of development processes and tools.

Required:

• Proven track record building high-performance, scalable cloud-based backend services.
• Deep expertise in Go (Golang), including concurrency patterns and performance optimization.
• Strong experience with microservice architectures.
• Proficiency with REST, gRPC, and websockets.
• Familiarity with NATS/JetStream and/or Kafka.
• Solid background in various database technologies (relational, object, time-series).
• Strong understanding of secure systems and best practices.
• Experience optimizing for Docker and Kubernetes deployments.
• Adaptability to fast-changing environments with a proactive problem-solving mindset.
• Excellent leadership, communication, and interpersonal skills.
• Experience with agile methodologies and collaborative workflows.