Senior Backend Engineer - Python

Lumenalta

📍 Toronto, ON, Canada

Full-time Other-General Posted February 25, 2026

Job Description

At Lumenalta, we partner with global enterprises to build and scale high-impact digital products. Our engineering teams work on complex, production-grade systems that power real-world experiences for millions of users.

What You’ll Do

  • Design, build, and maintain scalable backend systems using Python, GraphQL, and AWS services
  • Implement microservices that interact with distributed systems and cloud infrastructure
  • Write robust, testable, and efficient code to support mission-critical features
  • Collaborate with front-end developers, product managers, and other backend engineers to deliver complete end-to-end solutions
  • Develop and manage serverless applications using AWS Lambda, DynamoDB, and ECS
  • Monitor system performance and help drive improvements in reliability and scalability
  • Participate in code reviews, technical design discussions, and sprint planning
  • Contribute to automation efforts ac...