Senior Node.js / Data Migration Developer (Canada)

About the Client

The Client is a fast-growing health technology company focused on redefining digital healthcare infrastructure. They enable seamless integration, data mobility, and interoperability across complex health systems by partnering with provincial agencies, hospitals, and digital health platforms to deliver scalable solutions that enhance care coordination and improve outcomes.

Role Overview

The Senior Node.js Developer will design, develop, and maintain full stack applications with a focus on Node.js and MongoDB. This hands‑on role includes leading or supporting data migration and integration projects between systems, building scalable and secure RESTful APIs, and collaborating with cross‑functional teams to ensure smooth delivery of digital health solutions.

Key Responsibilities

Design, develop, and maintain full stack applications using Node.js and MongoDB.

Lead or support data migration and integration projects between healthcare systems using custom pipelines.

Build, document, and maintain scalable, secure RESTful APIs for interoperability across health platforms.

Collaborate with architects, analysts, QA, DevOps, and other teams to deliver end‑to‑end solutions.

Analyze technical requirements and propose effective solutions for integration, API development, and data movement.

Provide technical mentorship and conduct code reviews to uphold code quality and best practices.

Maintain comprehensive documentation for API specs, data mappings, workflows, and migration plans.

Contribute to continuous process and tool improvements to increase team productivity.

Required Skills and Experience

At least 6 years of experience in full stack development with strong skills in JavaScript and Node.js.

Proficient in MongoDB including schema design, data modeling, and migrations.

Solid experience in API design, development, and integration.

Hands‑on experience with data migration, ETL workflows, and custom pipelines.

Strong understanding of system integration patterns, message transformation, and error handling.

Familiarity with Agile development practices and CI / CD pipelines.

Excellent problem‑solving, debugging, and communication skills.

Ability to lead by example and mentor junior developers.

Hands‑on experience with Ruby on Rails is a plus.

Experience with healthcare integration standards such as FHIR, HL7, or eHealth Ontario specifications.

Understanding of secure API design and healthcare compliance frameworks (e.g., PHIPA, HIPAA).

Familiarity with cloud platforms like AWS and Azure, and microservice architecture.

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