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Operating Systems Programmer Jobs in Ontario (NOW HIRING)

Harris

Senior System Administrator

Ottawa, ON · On-site

CA$75K - CA$85K/yr

Diagnose and resolve complex customer infrastructure issues across server operating systems (Linux ... Familiarity with CI/CD pipeline design and DevOps practices. * Cloud certifications (Azure, AWS ...

Clio

Manager, Systems Engineering, Production

Toronto, ON · Hybrid

CA$180K - CA$270K/yr

For our Manager of Systems Engineering, this means someone who can collaborate across the ... Deep experience designing, deploying, and operating AWS infrastructure and managed services (like ...

Avidbots

Senior Hardware Developer

Kitchener, ON · On-site

We need a highly detailed-oriented senior hardware developer to help us design our new robots and ... Familiarity with the Robot Operating System (ROS), Linux-based operating systems, Jira, and Google ...

GE Vernova

Lead Embedded SW Engineer

Markham, ON · On-site

In the role of Lead Embedded Software Engineer, you will work with a cross-functional team ... Trade studies related to technologies such as operating systems, software architectures, frameworks ...

GE Vernova

Lead Embedded SW Engineer

Markham, ON · On-site

In the role of Lead Embedded Software Engineer, you will work with a cross-functional team ... Trade studies related to technologies such as operating systems, software architectures, frameworks ...

City of Ottawa

SCADA/OT System Integrator

Ottawa, ON · On-site

CA$85K - CA$104K/yr

... operating, programming and analyzing real-time process control systems, preferably in a public utilities environment. Must be experienced in SCADA system hardware and software operation, data ...

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Operating Systems Programmer information

What is an operating systems programmer?

Operating Systems Programmers are specialized software engineers who design, develop, maintain, and optimize operating systems such as Windows, Linux, or macOS. Their work involves writing low-level code that manages hardware resources, handles system processes, and provides a platform for application software to run efficiently. They often work with programming languages like C, C++, and assembly, and need a deep understanding of computer architecture and system-level programming. Their role is crucial in ensuring the stability, security, and performance of computers and devices.

What are some common challenges faced by operating systems programmers in maintaining and updating legacy systems?

Operating Systems Programmers often encounter the challenge of maintaining and updating legacy systems, which can involve working with outdated programming languages, limited documentation, and hardware constraints. Adapting legacy code to integrate with modern technologies while ensuring system stability and security requires both technical expertise and creative problem-solving. Collaboration with hardware engineers and application developers is often necessary to address compatibility issues and deliver seamless updates. Staying up-to-date with industry best practices and emerging OS trends helps programmers anticipate and address these challenges effectively.

What are the key skills and qualifications needed to thrive as an operating systems programmer, and why are they important?

To thrive as an Operating Systems Programmer, you need strong programming skills in languages like C and C++, a solid understanding of computer architecture, and a degree in computer science or a related field. Familiarity with version control systems (e.g., Git), debugging tools, and experience with Unix/Linux or Windows kernel development are typically required. Analytical thinking, attention to detail, and effective problem-solving are critical soft skills for diagnosing and resolving complex system-level issues. These skills ensure the reliability, efficiency, and security of operating systems that form the foundation for all computer applications.

What is the difference between Operating Systems Programmer vs Device Driver Developer?

AspectOperating Systems ProgrammerDevice Driver Developer
Required CredentialsBachelor's in Computer Science or related field; programming skills in C/C++Bachelor's in Computer Engineering or related; expertise in hardware interfaces and C/C++
Work EnvironmentDevelops core OS components, often in a system programming environmentCreates and maintains hardware-specific drivers, often within OS or hardware teams
Employer & Industry UsageUsed by OS vendors, tech companies, and embedded systemsUsed by hardware manufacturers, OS vendors, and embedded systems

Both roles require strong programming skills in C/C++, but Operating Systems Programmers focus on core OS development, while Device Driver Developers specialize in hardware interface software. The roles often overlap but differ in scope and focus within the system architecture.

What are popular job titles related to Operating Systems Programmer jobs in Ontario?

For Operating Systems Programmer jobs in Ontario, the most frequently searched job titles are:

What job categories do people searching Operating Systems Programmer jobs in Ontario look for?

The top searched job categories for Operating Systems Programmer jobs in Ontario are:

What are popular job titles related to Operating Systems Programmer jobs in ON?

For Operating Systems Programmer jobs in ON, the most frequently searched job titles are:

Operating Systems Programmer jobs near you
Infographic showing various Operating Systems Programmer job openings in Ontario as of August 2026, with employment types broken down into 83% Full Time, 12% Part Time, 4% Contract, and 1% Nights. Highlights an 86% Physical, 2% Hybrid, and 12% Remote job distribution.

Systems Designer/Engineer, Nuclear

ATS Automation Tooling Systems Inc

Cambridge, ON • On-site

CA$32.69 - CA$44.95/hr

Full-time

Medical, Dental, PTO

Re-posted 24 days ago

Job description

Join our globally growing team at ATS Industrial Automation where we create complex automation solutions at the highest level that sustainably impact lives around the world. 

At ATS, a publicly traded global company with a proud 40-year history, we help drive the future with our factory-wide automation solutions. At ATS Industrial Automation, what we do matters - both to our customers and to their customers. With 1000 skilled employees around the world, we design, build and service mission-critical automated assembly and test solutions for mobility, nuclear and specialty automation. Our customers are leaders in their industries and rely on us to deliver what we promise - on time and on budget.  Combined with our broad product portfolio, financial strength and global presence, we provide our customers with the best automation solutions wherever and whenever they need them.

Total Compensation & Benefits
  • Pay Rate: $32.69 - $44.95 per hour 
  • Eligible for Annual Incentive Bonus 
  • Stock Purchase Plan  
  • 3 Weeks Vacation  
  • Health Care Benefits + $600 Health Care Spending Account  
  • Employee Engagement Events (Employee BBQ's and lunches, weekly snack day, etc.) 
  • Employee Development Programs 
Role Overview

As a Systems Designer/Engineer - Nuclear you are responsible for learning technical aspects of a project and overseeing systems engineering activities specific to the project. You will work with the customer, ATS project manager, and the ATS design, assembly, and software teams to design the solutions that meet the customer's requirements. You will get the opportunity to develop into a technical leader by taking on the following 3 roles: 1) understanding the customer's technology and process and becoming the subject matter expert in the equipment/system, 2) providing project technical clarity by defining system requirements and validating system capability, and 3) being the technical leader on the system from cradle to launch, guiding the design team in ensuring project technical requirements are met. You will support technical execution of the project, contribute to risk mitigation, and drive improvements in quality, cost, and delivery. 

Specific Responsibilities

Subject Matter Expertise 

  • Learn the customer process and become the local expert in it, to support the design, integration, and verification of the machines/tools/systems. 
  • Prepare component and system level analysis, calculations, or studies including but not limited to: 
    • Structural integrity
    • Functional capability, drive sizing - speeds, strokes, loads, etc.
    • Accuracy, Gauge R&R
    • Pressure/flow/heat transfer
    • Compliance with applicable codes and standards.
    • Prepare (or assist in preparation of) technical project documents such as Failure Modes and Effects Analyses and Safety Risk Assessments, ALARA reports, installation/commissioning plans, operating sequence/flowcharts, execution storyboards, operating and maintenance manuals, etc. 

Requirements Definition and Verification 

  • Assist in compiling and documenting design requirements, technical/functional specifications, etc.
  • Learn, understand and flow down customer and industry requirements, including applicable codes and standards, to ensure overall machine compliance.
  • Prepare vendor technical specifications and interface with vendors of process critical third party equipment, including acceptance testing and buy-off of equipment at vendor site.
  • Using tools such as a Verification Matrix, plan for verification of all design/system requirements.
  • Lead (or support) requirements verification by evaluating engineering drawings and specifications for conformance to design inputs/requirements, performing analysis (calculations, simulations, etc.) and testing (POP testing, design validation testing, factory acceptance testing, site acceptance testing).
  • Lead (or support) planning of Acceptance Testing, including preparation of test plans, ensuring availability of mock-ups, fixtures, test support equipment, etc., and performing test execution with the customer. 

Project Technical Leadership 

  • Be (or support) the project technical lead in Design Plan preparation, understand responsibilities for implementation, and perform design related activities in accordance with the Design Plan.
  • Perform (or assist in) problem solving and coordination of project engineering work.
  • Provide project support during system startup, integration and buy-off.
  • Lead (or participate in) design reviews with customers, vendors, and internal design groups  
  • Lead (or participate in) project technical risk mitigation activities during design stage, preparing CTRAs (concept technical risk assessments), and performing POP (proof of principle) testing.
  • Manage (or support the technical lead in managing) project technical risk throughout the project: highlight high risk areas and create mitigation plans to reduce risk. 

Employee responsibilities for Health, Safety and Environment include: 

  • Work in conformance with divisional health, safety and environmental procedures and compliance to legislative requirements
  • Refrain from removing or altering safety devices or guarding unless hazardous energies are controlled through lockout-tagout methods
  • Report any unsafe conditions or unsafe acts, defect in any equipment or protective device, and any accidents/incidents to the supervisor
  • Ensure that the required protective equipment is used for assigned tasks
  • Attend all required health, safety and environmental training
  • Assist in investigating accidents/incidents where applicable
  • Refrain from engaging in any prank, contest, feat of strength, unnecessary running or rough and boisterous conduct 

Why should you join ATS Industrial Automation?

  • Be a part of an engaged, empowered and innovative global workforce
  • We offer a robust total rewards package- Competitive starting salaries, comprehensive health and dental benefits, overtime pay, employee bonus, RSP matching, Employee Share Purchase Program
  • We provide awesome work perks such as treat days, gourmet coffee and beverages, subsidized breakfast and lunches in our cafeteria, employee referral bonuses and lots more.
  • We are intentional about your professional growth and development through internal career opportunities and our educational reimbursement program.

The Compensation offered will be based on the local job market and may vary depending on factors such as the job-related knowledge, skills, experience of the selected candidate, as well as other objective business considerations. Subject to these considerations, the total compensation package for this position may also include other elements, such as an annual cash incentive in addition to a full range of medical, retirement, and/or other benefits. Details of these benefit plans will be provided when the selected job candidate receives an offer of employment.

This role represents an existing vacancy within the organization.

ATS is in compliance with the Accessibility for Ontarians with Disability Act (AODA), 2005 and will, upon request, assist those who may require specific accommodations due to personal disability. We would ask those who require assistance to notify our offices as soon as possible if accommodation is necessary.

The ATS applicant tracking system may utilize AI software with predefined, rulebased filters to organize and manage application materials. Rulebased filters operate solely on fixed criteria and do not perform autonomous evaluation or generate independent recommendations. All hiring decisions continue to involve human review and judgment. 

 If you're excited about this role, but do not meet all the qualifications listed above, you are still encouraged to apply. 

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