Senior Ruby Golang Backend Developer
COGNITO INC
Build Ruby and Golang backend services and APIs in Toronto or Brampton, Ontario, supporting high-traffic consumer applications and streaming platforms.
This Backend Developer role requires five-plus years of professional software development experience, strongly focused on backend development. You will design microservices, maintain RESTful APIs, and work with MySQL, Cassandra, and Redis. The work includes scalable architecture, automated testing, production troubleshooting, and Agile collaboration.
Key Responsibilities:
- Design and maintain Ruby and Golang backend services
- Develop RESTful APIs and third-party integrations
- Optimize applications for performance and reliability
- Troubleshoot production issues across backend services
- Collaborate with infrastructure and DevOps teams
Requirements:
- Five-plus years of professional software development experience
- Strong Ruby and Golang development experience
- Experience building APIs and microservices
- Experience with MySQL, Cassandra, and Redis
- Strong communication in cross-functional Agile teams
Apply backend expertise in Ruby, Golang, APIs, databases, and scalability for high-traffic digital applications in Ontario.
#J-18808-LjbffrReference: WJ-4483_1559383 · Posted 09 Nov 2026, 01:43 AM