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Senior Software Developer - UHN, Toronto

UHN logoUniversity Health Network·Toronto, ONfull time

Posted: July 8, 2026

Apply for this jobExpires: August 7, 2026

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AI Summary

This Senior Software Developer position at University Health Network (UHN) in Toronto involves expanding a next-generation data health platform. The role focuses on storing and mining patient data, integrating diverse sources, and facilitating "Big Data" analysis for research and quality of care improvement. Key requirements include strong coding and problem-solving skills, along with experience designing and implementing complex software systems.

Innovating Healthcare Technology at UHN

The University Health Network (UHN) in Toronto is seeking a Senior Software Developer to join a dynamic team dedicated to advancing healthcare technology. This pivotal role involves contributing to the expansion of a cutting-edge data health platform, designed for the robust storage and sophisticated mining of patient data. The platform integrates a wide array of data sources, from standard electronic medical records and lab results to complex DNA sequencing data and diagnostic imaging. The ultimate goal is to provide a scalable platform that effectively integrates and facilitates "Big Data" analysis, directly supporting research hypotheses testing and enhancing the quality of patient care across UHN. This position offers a unique opportunity to apply advanced software development skills to real-world healthcare challenges, making a tangible impact on patient outcomes. The team fosters a casual yet energetic work environment, encouraging participation in the decision-making process during the design and development phases of applications.

Key Responsibilities and Technical Environment

As a Senior Software Developer, you will be instrumental in the full life-cycle of software delivery, from requirement gathering and design to implementation, testing, deployment, and ongoing maintenance. Your primary focus will be to design and develop backend microservices for the digital health platform, predominantly using Golang, though proficiency in other languages like Python, Java, or Ruby may also be required. The process involves integrating external data sources, implementing search and retrieve APIs (GraphQL), ensuring data anonymization, and facilitating complex "Big Data" analysis. The architecture heavily favours a microservice design pattern, utilizing JSON for data interchange. The primary data-store is NoSQL MongoDB, complemented by relational data in PostgreSQL. Deployment is targeted for Kubernetes and Linux Docker-runtime environments. Strong coding and problem-solving skills are essential, alongside proven experience in designing and implementing complex software systems. Familiarity with GIT version control workflows and working in a Linux command-line environment is also crucial for this role.

Why Join University Health Network (UHN)?

Joining UHN means becoming part of one of the world's leading healthcare organizations, working alongside inspiring professionals dedicated to innovation. UHN offers a comprehensive suite of benefits, programs, and perks designed to support your career growth and personal well-being. As a government organization, UHN is a member of the Healthcare of Ontario Pension Plan (HOOPP), providing excellent retirement security. Employees benefit from competitive offer packages, close access to transit and UHN shuttle services, and a flexible work environment. There are ample opportunities for professional development and promotions within this large organization. Additionally, UHN provides various corporate discounts, including travel, restaurants, parking, phone plans, and auto insurance, along with access to on-site gyms. This temporary full-time position, approximately 12 months in duration, offers a unique chance to contribute to impactful software development within a supportive and forward-thinking environment.

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