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Added 19 days ago
V
Lead Optimizely Solutions Architect
Valtech
Canada
- Full-time
Strong .NET background, including C#, ASP.NET Core, MVC and Optimizely APIs.
Added 19 days ago
H
Senior Software Engineer - AI/ML
Hach
London, ON · Vancouver, BC · CAN - Vancouver - Aquatic Informatics ULC
- $120,000 to $145,000 CAD / year
- Full-time
Strong background in Microsoft development (.NET, C#, and related technologies).
Added 20 days ago
C
Développeur(se) C# / C++ – Expert(e) systèmes temps réel
CGI
Montreal, QC
- Full-time
Are you an experienced C++ / C# developer who thrives on solving complex challenges involving real-time systems, low latency, multithreading, parallel computing and distributed…
Added 20 days ago
NT
C# / C++ Developpeur (Real Time expert)
Nöord Technologies
Montreal, QC
- Full-time
…strong growth, we are actively seeking an experienced C++ / C#…
Added 20 days ago
AC
Développeur·euse logiciel·le C++/C#
ALTEN Canada
Montreal, QC
- Full-time
Développer des services en C++/C#/.NET Core pour des systèmes de pricing et gestion des risques
Added 21 days ago
T
Full Stack .NET Developer
Techso
Montreal, QC
- Full-time
Techso is looking for a Senior Full Stack .NET Developer to help design and develop digital solutions used by our clients across Canada.
Added 21 days ago
Senior Specialist, Software Engineering (Microsoft Dynamics 365 CRM)
CMHC - SCHL
Toronto, ON · Ottawa, ON · Montreal, QC
Leading experience in developing code using Visual Studio, .Net Development (C#).
Added 21 days ago
Bilingual Senior Specialist, Software Engineering (Microsoft Dynamics 365 CRM)
CMHC - SCHL
Toronto, ON · Ottawa, ON · Montreal, QC
Leading experience in developing code using Visual Studio, .Net Development (C#).
Added 21 days ago
M
Senior Software Developer
Metrolinx
Canada
- Full-time
This role is an in‑office position based at our 277 Front Street West office location. Our team is highly collaborative, and much of our work benefits from in‑person co‑creation,…
Added 21 days ago
X
Engineer
Xero
Vancouver, BC
- Full-time
…business goals, always keeping customer needs and outcomes front of mind. By identifying and solving complex, ambiguous problems independently, you will produce robust, high-quality, and…
Added 24 days ago
IG
Lead Software Engineer
Insight Global
Burnaby, BC
- Full-time
Experience with .NET full stack development, including C#, ASP.NET, and basic front-end technologies.
Added 25 days ago
S
Lead Software Engineer - AI & Quality Engineering Focus (C# and Azure Cloud)
SimCorp
Toronto, ON
- Full-time
Our technology stack is centered around C#, .NET, Azure, APIs, and cloud-based services, and our current focus areas include:
Added 25 days ago
SG
Technical Team Leader
Societe Generale
Montreal, QC
- Full-time
…monitoring and control of key risk metrics and limits applied to Front Office…
Added 25 days ago
SG
Front Office Support Analyst
Societe Generale
Montreal, QC
- Full-time
Build, troubleshoot, and support in C#/.Net for various Front Office business applications
Added 25 days ago
SG
Programmer Analyst
Societe Generale
Montreal, QC
- Full-time
As a C# Developer, we ask you to be versatile, display leadership qualities, and approach challenges with enthusiasm, delivering innovative solutions that support our business growth.…
Added 26 days ago
IC
Senior Full Stack Developer
InfoTrack Canada
Toronto, ON
- Full-time
Build and ship full-stack features across our React/TypeScript front end and C#/.NET back end, taking them from idea to production fast.
Added 26 days ago
SC
Développeur C#.NET Front Office (Senior)
SII Canada
Montreal, QC
- Full-time
Développer, dépanner et maintenir des applications Front Office en C#/.Net.
Added 28 days ago
Full Stack Developer
Corpay
Toronto, ON
As a Full Stack Software Developer, you will be expected to work in a hybrid office environment. Corpay will set you up for success by providing:
Added 28 days ago
A
Software Developer - Full Stack - Senior
Akkodis
Toronto, ON
- Contract
Position: Software Developer - Full Stack – Senior(.Net & React)
Added 1 month ago
C
Technical Lead, Innovation
Croesus
Laval, QC
- Full-time
Comfort across our stack, not just one corner of it: C# / .NET (.NET Core, REST/WebAPI) on the backend, TypeScript with Angular (our standard) and React (common on the Innovation side) on…
Added 1 month ago
C
Technical Lead, Innovation
Croesus
Montreal, QC
- Full-time
Comfort across our stack, not just one corner of it: C# / .NET (.NET Core, REST/WebAPI) on the backend, TypeScript with Angular (our standard) and React (common on the Innovation side) on…
Added 1 month ago
MF
Senior Software Engineer
Magnet Forensics
Canada
- Full-time
Experience developing backend services and APIs using C# and .NET technologies.
Added 1 month ago
A
Lead Software Engineer – AI, Data Visualization & Platform
Astucemedia
Montreal, QC
- Full-time
Evolve and progressively modernize our Angular and C#/.NET Core platform.
Added 1 month ago
FS
Senior Software Engineer (Front End / Integration), Hospitality Operations Technology
Four Seasons Hotels and Resorts
Toronto, ON · Four Seasons Corporate Headquarters Toronto
- Full-time
Actively participate in the development of both front-end (TypeScript, React.ts) and back-end (.NET, C#) components, setting a high standard for code quality and maintainability.
Added 1 month ago
M
Full Stack Engineer
Mission.dev
Canada
- Full-time
Strong experience with C# (.NET 6 and above).

Metrolinx

Senior Software Developer

Canada

Full-time

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Job details

Job type: Full-time
Posting language: English
Posted: Oct 5, 2026

Original job description

Metrolinx is connecting communities across the Greater Golden Horseshoe. Metrolinx operates GO Transit and UP Express, as well as the PRESTO fare payment system. We are also building new and improved rapid transit, including GO Expansion, Light Rail Transit routes, and major expansions to Toronto’s subway system, to get people where they need to go, better, faster and easier. Metrolinx is an agency of the Government of Ontario.

At Metrolinx, equity, diversity and inclusion are essential to living our values of serving with passion, thinking forward and playing as a team.

This role is an in‑office position based at our 277 Front Street West office location. Our team is highly collaborative, and much of our work benefits from in‑person co‑creation, relationship‑building, and hands‑on partnership with leaders across the organization.

We are seeking a Senior Software Developer (Integrations) to design, develop, and deliver scalable, high-performing integration solutions across enterprise systems. This role supports critical platforms within Transit Operations and enterprise technology portfolios by enabling real-time interoperability, API development, and cloud-based integrations. The ideal candidate brings strong technical leadership, hands-on development expertise, and the ability to translate business needs into robust technical solutions.

What will I be doing?

Design, develop, test, and implement integration solutions, APIs, and enterprise applications aligned with SDLC best practices
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

What Skills and Qualifications Do I Need?

Education & Experience

Degree in Computer Science, Engineering, or related field (or equivalent experience)
Demonstrated years of experience in software development, including technical leadership roles.

Technical Skills

Strong experience in integration development (APIs, microservices, event-driven architecture)
Proficiency in technologies such as C#, .NET, Node.js, JavaScript frameworks, SQL, Redis, SignalR, RESTful and SOAP services
Experience with cloud platforms (Azure Container App, ACR, Azure Functions, Key Vault preferred) and DevOps/CI-CD pipelines
Knowledge of security protocols (OAuth2, SAML, encryption) and API management
Experience with messaging/event streaming (e.g., Azure Event Hub, Service Bus, RabbitMQ)
Familiarity with Agile methodologies.

Additional Assets

Experience with enterprise systems, data platforms, or real-time integrations
Certifications such as Microsoft Certified Developer or Agile/Scrum credentials

Don’t Meet Every Requirement?

If you’re excited about working with Metrolinx but your past experience doesn’t quite align with every qualification of this posting, we encourage you to apply. You just might be the right candidate for this or other roles. We are always looking for great talent to join our team.

We invite all interested individuals to apply and encourage applications from members of equity-deserving communities, including those who identify as Indigenous, Black, racialized, women, people with disabilities, and people with diverse gender identities, expressions and sexual orientations.

Accommodation:
Metrolinx is an equal opportunity employer and committed to a diverse and inclusive workforce. We are also committed to offering reasonable accommodation to job applicants in accordance with applicable legislation. If you require assistance or an accommodation at any point during the hiring process, please contact us at: 416-202-5601 or email hr.recruitment@metrolinx.com.

Application Process:

All applicants must be legally entitled to work in Canada. Metrolinx will be using email to communicate with you for all job competitions. It is your responsibility to include an updated email address that is checked daily and accepts emails from unknown users. As we send time-sensitive correspondence, we recommend that you check your email regularly. If no response is received, we will assume you are no longer interested in pursuing the opportunity. Please be advised that a Criminal Record Check may be required of the successful candidate.

For Internal applicants, with the recent implementation of the Internal Mobility Policy, the internal recruitment process has changed for non-union roles. Candidates must be in their current role for 12 months prior to applying for another role and each applicant must be in good standing (not participating in a Performance Improvement Plan). Please review all provisions of the policy before submitting your application.

Should it be determined that any background information provided is misleading, inaccurate or incorrect, Metrolinx reserves the right to discontinue with the consideration of your application.

We thank all applicants for their interest, however, only those selected for further consideration will be contacted.

WE ARE AN EQUITABLE AND INCLUSIVE EMPLOYER.

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More about this job

Responsibilities

The Senior Software Developer will design, develop, and implement scalable integration solutions and APIs across enterprise systems. They will also lead technical analysis, mentor junior developers, and ensure all solutions align with cybersecurity and data governance standards.

Requirements

Candidates must have a degree in Computer Science, Engineering, or a related field along with significant experience in software development and technical leadership. Proficiency in C#, .NET, cloud platforms, and integration technologies is required.

Skills

C#
.NET
Node.js
JavaScript
SQL
Redis
SignalR
RESTful services
SOAP services
Azure
DevOps
CI/CD
OAuth2
API management
Microservices
Event-driven architecture

Visa sponsorship

Not detected in the job text

Keywords

Software Developer
Integrations
C#
.NET
Node.js
JavaScript
SQL
Redis
SignalR
RESTful
SOAP
Azure
Azure Functions
DevOps
CI/CD
OAuth2
SAML
API Management
Microservices
Event-driven architecture
Agile
Scrum
Enterprise Systems
Cloud Computing
Cybersecurity
Data Governance
API Development
Interoperability
Technical Leadership

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