BettingJobs are working with a newly launched crypto casino brand who are currently looking for a Senior Backend Developer to join their team based in China.

Responsibilities:

• Lead and mentor backend engineers through code reviews, pair programming, and coaching
• Own architecture decisions and ensure scalability, performance, and security
• Establish and enforce coding standards and engineering best practices
• Stay current with backend technologies and help guide our tech strategy
• Write clean, efficient, and maintainable code using Node.js, TypeScript, and NestJS
• Design and build microservices, APIs, and real-time features
• Debug, test, and troubleshoot complex backend issues
• Conduct thorough code reviews and enforce quality standards
• Work with product managers to scope and prioritize backend work
• Estimate timelines and manage sprint execution
• Track technical progress, flag risks, and ensure timely delivery
• Maintain and improve CI/CD pipelines
• Contribute to system reliability and observability
• Participate in on-call rotations and incident response

Requirements:

• 6+ years in backend development, preferably with experience in high-performance or iGaming systems
• Proven ability to build and scale real-time backend platforms
• Strong experience working in agile environments
• Proficient in Node.js with TypeScript
• Deep understanding of NestJS (modular DI, WebSockets, CQRS, microservices)
• Strong with Prisma ORM, BullMQ, Redis, and RabbitMQ
• Skilled in designing RESTful APIs and building secure authentication flows using Passport (JWT/OAuth/local)
• Comfortable with AWS services like EC2, Lambda, SQS, RDS, and S3
• Hands-on experience with Docker and CI/CD pipelines (GitLab CI, Jenkins, CircleCI)
• Familiar with SQL and NoSQL databases
• Bonus: Familiarity with tools like MaxMind GeoIP, SendGrid, Google Cloud Storage, Helmet, EJS, Winston, and Sentry
• Excellent communication and collaboration abilities
• Strong leadership and mentoring mindset
• Self-driven and organized
• Detail-oriented with a product-thinking mindset
• Bachelor’s degree in Computer Science or related field (or equivalent experience)