C# Software Developer – Tier 3 Software Support

Randstad Canada; Remote; CAD 100,000 - 125,000; Full time

Job summary

A leading staffing agency is seeking an Intermediate C# Developer for a federal engagement in Ottawa. This primarily remote role will require candidates to reside in the area for potential on-site work. Responsibilities include Tier 3 support and collaboration with development teams on enhancements. The ideal candidate will have 2 to 7 years of experience in C#, strong analytical skills, and the ability to troubleshoot complex issues. A bachelor's degree in a technical field is required. Competitive compensation and a dynamic work environment are offered.

Benefits

High impact ownership of complex issues

Collaborative team environment

Qualifications

• 2 to 7 years of experience in C# software development.
• Experience in Tier-3 software support and code-level troubleshooting.
• Strong understanding of system architecture and application lifecycle management.

Responsibilities

• Analyze and resolve software issues in production environments.
• Collaborate with support and engineering teams on issue resolution.
• Write or update code to improve system stability.

Skills

C#

Analytical thinking

Problem-solving

Collaboration

Communication

Education

Bachelor’s degree in Computer Science or related field

Tools

.NET

CI/CD workflows

Job description

Our client is seeking an Intermediate C# Developer Tier 3 Software Support professional to support a critical and high visibility engagement within the federal environment. This Ottawa based role is primarily remote; however candidates must reside in the Ottawa area and be able to report on site with very limited notice when required. The position sits at the intersection of hands on software development and advanced application support, making it ideal for a developer who enjoys deep technical problem solving and working directly with production systems. Approximately 40 percent of the role focuses on Tier 3 support, where you will investigate complex non routine issues requiring code level analysis, debugging, fixes, and enhancements, while the remaining 60 percent is dedicated to collaborating with the core development team on feature enhancements, backlog initiatives, technical debt remediation, and continuous improvement. The ideal candidate is a strong communicator with a curious and analytical mindset who takes ownership of issues end to end and remains calm under pressure. Experience working in formal support environments is an asset but not mandatory; what matters most is resilience, adaptability, and the ability to diagnose root causes and deliver permanent solutions. This full time role includes a rotating on call schedule, limited after hours incidents, and requires eligibility for Government of Canada security clearance.

Location & Eligibility

• Candidates must live in the Ottawa area or be willing to relocate
• Candidates must be eligible for Government of Canada Security Clearance (having lived in Canada for the past 5+ years)

Advantages

• High Impact – Take ownership of complex issues and work directly with clients and dev teams.
• Collaborative Team – Join a global, skilled support team focused on learning and innovation.

Responsibilities

• Analyze and resolve complex software issues reported from production environments using C#, .NET, and associated debugging tools.
• Investigate and reproduce customer-reported defects in a controlled development environment, identify root causes, and implement code fixes.
• Work with the broader engineering team to deliver patches or hotfixes, ensuring quality and adherence to SLAs.
• Collaborate with customer-facing support teams to gather information, validate issues, and provide timely and detailed updates to stakeholders.
• Write or update code where necessary to improve system stability, performance, and maintainability.
• Review logs, performance metrics, and system behavior to proactively identify and address recurring problems.
• Contribute to knowledge-sharing initiatives by documenting known issues, workarounds, and permanent solutions in our internal and customer-facing portals.
• Participate in peer code reviews and support readiness reviews for new releases and patches.
• Support deployment teams by assisting with code validation and change management activities.
• Propose and develop tools or automation scripts to streamline incident analysis and support workflows.

Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, or a related technical field.
• 2 to 7 years of recent C# software development, ideally with a focus on enterprise applications or SaaS products.
• Proven experience in Tier-3 or post-release support where code-level troubleshooting and resolution were required.
• Strong understanding of system architecture, design patterns, and application lifecycle management.
• Experience debugging live systems and developing long-term solutions, not just temporary fixes.
• Exposure to cloud environments and modern CI/CD workflows is an asset.

What We’re Looking For

• Strong Developer Mindset: You approach support issues the same way you approach development—through structured, testable, and maintainable code.
• Analytical & Methodical: You thrive on diagnosing complex issues and pinpointing the exact lines of code causing failures.
• Collaborative Communicator: You can explain technical concepts to non-technical stakeholders and relay customer needs to engineering.
• Calm Under Pressure: You stay focused when dealing with high-priority or time-sensitive issues.
• Process Improvement Enthusiast: You constantly seek ways to optimize support practices and reduce time-to-resolution.

Summary

If you're interested in learning more please submit your résumé and one of our senior Recruiters would be happy to give you a call to discuss further.

EEO Statement

Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community. Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to [e-mail] to ensure their ability to fully participate in the interview process.