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Senior .NET Software Developer – Azure, C#, ASP.NET & SQL Server
ThoughtStorm
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- Contract
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ThoughtStorm
Toronto, ON
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Added 11 days ago
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ThoughtStorm
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Added 11 days ago
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Business Specialist
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Added 11 days ago
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Java Software Engineer
ThoughtStorm
Toronto, ON
- $100 to $110 CAD / hour
- Contract

ThoughtStorm

Java Software Engineer

Toronto, ON, Canada

$100 to $110 CAD / hour · Contract

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Job details

Pay: $100 to $110 CAD / hour
Job type: Contract
Apply by: Nov 20, 2026
Posting language: English
Posted: Oct 21, 2026

Original job description

Must Haves:

Java, Spring Boot, REST API, and HAPI FHIR development experience, including hands-on processing of FHIR R4 and DSTU2 resources in production-grade services.
NextGen Connect (Mirth) and HL7 v2 integration experience, including transformation, validation, routing, acknowledgements, error handling, Java-service integration, and practical experience with the Ontario HRM Standard.
ReactJS full-stack development experience and hands-on knowledge of FHIR Subscriptions and Ontario Health Enterprise Pub/Sub, including translating physician-level preferences into subscription filter criteria.
Secure application and container delivery experience using OAuth 2.0, mTLS, Docker, automated testing, configuration management, audit logging, and production troubleshooting.

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More about this job

Responsibilities

Develop production-grade Java and ReactJS services that process FHIR resources and integrate with HL7 v2 systems, including Ontario HRM. Implement subscription filtering and secure application delivery, and support testing, audit logging, and production troubleshooting.

Requirements

Hands-on experience with Java, Spring Boot, REST APIs, HAPI FHIR, FHIR R4 and DSTU2, NextGen Connect (Mirth), and HL7 v2 integration is required. The role also requires ReactJS, FHIR Subscriptions, Ontario Health Enterprise Pub/Sub, OAuth 2.0, mTLS, Docker, automated testing, configuration management, audit logging, and production troubleshooting experience.

Skills

Java
Spring Boot
REST API
HAPI FHIR
FHIR R4
DSTU2
NextGen Connect (Mirth)
HL7 V2
ReactJS
FHIR Subscriptions
Ontario Health Enterprise Pub/Sub
OAuth 2.0
Mutual TLS (mTLS)
Docker
Automated Testing
Audit Logging

Visa sponsorship

Not detected in the job text

Keywords

Java
Spring Boot
REST API
HAPI FHIR
FHIR R4
DSTU2
FHIR Resources
NextGen Connect
Mirth
HL7 V2
Ontario HRM Standard
ReactJS
FHIR Subscriptions
Ontario Health Enterprise Pub/Sub
Subscription Filter Criteria
OAuth 2.0
Mutual TLS
Docker
Automated Testing
Configuration Management
Audit Logging
Production Troubleshooting
Healthcare Integration
Acknowledgements
Error Handling
Message Routing
Data Transformation
Data Validation

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