Backend API Developer (Node.js / NestJS / Python)
Toronto, ON
Hybrid 3 Days a week
Contract , Hybrid Opportunity
Primary skills : Node.js with NestJS, Python, DB2, MongoDB
Secondary skills : Experience in deploying Kubernetes based cloud environments
Job Summary
We are seeking a Backend API Developer to design, develop, and maintain scalable, secure, and high-performance backend services and APIs. This role focuses on building cloud-native applications using Node.js (NestJS), and Python, deployed to Kubernetes-based cloud environments.
The position involves working with both enterprise and NoSQL databases (DB2 and Mongo DB), implementing strong security controls, and ensuring high code quality through automated testing and best practices. Key Responsibilities• Design, develop, and maintain RESTful APIs and backend services using:o Node.js with NestJ So Python• Build and operate cloud-native microservices designed for Kubernetes deployment• Develop and optimize database integrations with DB2 and MongoDB• Implement secure authentication and authorization mechanisms using OAuth 2.0and JWT• Apply OWASP secure coding standards across all applications• Write clean, maintainable, and well-documented code• Create and maintain automated unit, integration, and API tests• Collaborate with DevOps, frontend, and architecture teams throughout the development lifecycle• Participate in system design reviews, code reviews, and architectural discussions• Troubleshoot, debug, and optimize services for performance, scalability, and reliability• Support CI/CD pipelines and production readiness activities Project Delivery• Lead and participate in system planning, technical design reviews, and project coordination with other IT teams.• Estimate development e Qorts, create or update documentation, and ensure compliance with SDLC and Change Management policies.• Communicate how proposed system changes impact business processes and other dependent systems.•
Manage multiple development assignments simultaneously while ensuring timely delivery of high-quality features.
Education & Experience•
Bachelor’s degree in Computer Science, Engineering, or equivalent professional experience.
Key Skills
Ranked by relevance
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- Posted
- May 15, 2026
- Type
- Contract
- Level
- Mid-Senior
- Location
- Toronto
- Company
- Quantum World Technologies Inc.
Industries
Categories
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3 roles aligned with this opportunity
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