Senior Integrations Engineer - APIs & Cloud

Metrolinx; Toronto; On-site; CAD 110,000 - 150,000; Full time

Job summary

Metrolinx, based at 277 Front Street West, seeks a Senior Software Developer (Integrations) to design, develop, and deliver scalable integration solutions across enterprise systems. This in‑office role focuses on real‑time interoperability, API development, and cloud‑based integrations with strong technical leadership.

The ideal candidate has hands‑on development experience, guides architectural decisions, and mentors junior developers while delivering secure, high‑performing systems for Transit

Qualifications

• Degree in Computer Science, Engineering, or related field.
• Demonstrated years of experience in software development with leadership.

Responsibilities

• Design, develop, test, and implement integration solutions, APIs, and enterprise applications.
• Lead technical analysis, architecture, coding, and deployment of scalable and secure systems.
• Develop and maintain system integrations across cloud and on-premise environments.
• Define and document technical specifications and interface designs.
• Collaborate with cross-functional teams, stakeholders, and vendors to deliver solutions.
• Ensure solutions align with enterprise architecture, cybersecurity, and data governance standards.
• Lead code reviews, quality assurance, and troubleshooting activities.
• Mentor junior developers and promote best practices in software development.
• Support continuous improvement, performance optimization, and system reliability.

Skills

APIs

Microservices

Event-driven

C#

.NET

Node.js

JavaScript

SQL

Redis

SignalR

REST/SOAP

Education

Bachelor's degree in CS or related field

Tools

Azure Container Apps

Azure Functions

Key Vault

ACR

Job description

Metrolinx, based at 277 Front Street West, seeks a Senior Software Developer (Integrations) to design, develop, and deliver scalable integration solutions across enterprise systems. This in‑office role focuses on real‑time interoperability, API development, and cloud‑based integrations with strong technical leadership.

The ideal candidate has hands‑on development experience, guides architectural decisions, and mentors junior developers while delivering secure, high‑performing systems for Transit