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KTek Resourcing

Back End Developer

On site

Mississauga, Canada

Mid level

Freelance

19-09-2025

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Skills

Communication TypeScript GraphQL GitHub CI/CD DevOps Docker Monitoring Jenkins Azure DevOps Architecture Programming Azure node.js Microservice CI/CD Pipelines Microservices GitHub Actions

Job Specifications

Skills Mandatory - NestJS & TypeScript, GraphQL(Apollo) - Mandatory, Microservice, Docker

Key Responsibilities

Design, build, and maintain scalable backend services using NestJS and TypeScript.
Develop and optimize GraphQL APIs with Apollo to support high-performance integrations.
Implement secure authentication and authorization using Azure B2C JWTs.
Ensure observability and monitoring by integrating OpenTelemetry for tracing and logging.
Build, deploy, and manage applications in Dockerized environments.
Collaborate with cross-functional teams to define, design, and ship new features.
Contribute to and advocate for best practices in REST API design, testing, and CI/CD pipelines.
Work within a microservices architecture, ensuring scalability, resilience, and reliability.

Required Skills & Experience

5+ years of hands-on backend development experience.
Strong expertise in NestJS and TypeScript.
Proven experience building and deploying GraphQL APIs (Apollo).
Solid understanding of Node.js, REST API design, and asynchronous programming.
Experience with Docker for containerized deployments.
Strong testing skills with frameworks such as Jest.

Nice to Have (Preferred)

Experience with feature flag management.
Knowledge of CI/CD pipelines (e.g., GitHub Actions, Jenkins, Azure DevOps).
Familiarity with microservice communication patterns (event-driven, message queues).
Exposure to cloud environments (Azure preferred).

About the Company

Ktek Resourcing is a global staffing and recruitment firm specializing in IT, engineering, and professional services. We combine data, AI, and human insight to deliver smarter, faster hiring solutions. Whether you're filling a single role or scaling an entire team, we bring over two decades of recruiting expertise to every engagement. Ktek is proudly headquartered in Houston, TX. Our reach spans North America, South America, Asia, and EMEA, connecting businesses with top-tier talent. We are committed to creating equitable... Know more