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Senior Instrument Engineer Jobs in Ontario (NOW HIRING)

The Opportunity: Tetra Tech is adding a Senior Electrical Engineer to our EI&C team based in ... instrument loop drawings, instrument location drawings, control system panel layouts and wiring ...

Senior UI Engineer About the Role We're looking for a Senior UI Engineer who wants to own the ... Instrument UIs with Azure Application Insights; own frontend observability, error tracking, and ...

The Senior Backend Engineer, AI Platform owns the backend surface. You are the primary engineer on ... instrument all contributions with OpenTelemetry distributed tracing Author and maintain Swagger ...

Write, test, instrument, document, and maintain software for Smile.io. * Review code and provide ... engineering or a related field, with senior-level expertise in Front-End development and hands-on ...

Senior Full-Stack Engineer, AI Platform The Opportunity Chubb's AI Platform team is building an ... Instrument frontend applications with Azure Application Insights; own frontend observability, error ...

CA$180K - CA$225K/yr

This role is for a senior technologist-turned-program-manager: someone with deep roots in systems engineering, spacecraft I&T, or instrument development who has grown into full technical, cost, and ...

CA$101K - CA$122K/yr

The company is dedicated to promoting diversity in its workforce, up to and including the senior ... Work independently and as part of engineering teams to contribute and prepare design plans ...

This role will have two distinct functions: 1) on-site commissioning engineer, and 2) office-based as senior Control, Automation and Electrical Engineer About the Role: On-Site: * Independently ...

... engineer, and 2) office-based as senior Control, Automation and Electrical Engineer About the Role: On-Site: * Independently execute all commission activities. * Take ownership of project tasks to ...

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Showing results 1-20

Senior Instrument Engineer information

See Ontario salary details

$31.5K

$114.6K

$174.5K

How much do senior instrument engineer jobs pay per year?

As of Jul 5, 2026, the average yearly pay for senior instrument engineer in Ontario is $114,616.00, according to ZipRecruiter salary data. Most workers in this role earn between $93,500.00 and $129,000.00 per year, depending on experience, location, and employer.

What are some common challenges faced by Senior Instrument Engineers when working on multidisciplinary projects?

Senior Instrument Engineers often encounter challenges coordinating with other engineering disciplines, such as process, electrical, and mechanical teams, to ensure instrumentation specifications align with overall project requirements. Integrating new instrumentation technologies into existing systems while maintaining compliance with safety and industry standards can also be demanding. Effective communication, strong project management skills, and adaptability are essential to successfully navigate these complexities and ensure project deliverables are met on time and within budget.

What does a Senior Instrument Engineer do?

A Senior Instrument Engineer is responsible for designing, specifying, installing, and maintaining instrumentation and control systems used in industrial processes. They ensure that these systems function efficiently, safely, and reliably to monitor and control variables such as pressure, temperature, and flow. Senior Instrument Engineers often lead projects, troubleshoot complex issues, and provide technical guidance to junior engineers. They also collaborate with other engineering disciplines to optimize process performance and comply with industry standards.

What are the key skills and qualifications needed to thrive as a Senior Instrument Engineer, and why are they important?

To thrive as a Senior Instrument Engineer, you typically need a degree in engineering (often electrical, instrumentation, or control engineering) and extensive experience with instrumentation design, installation, and maintenance. Proficiency with industry-standard tools such as PLCs, DCS, CAD software, and familiarity with relevant codes and certifications like ISA or IEC are essential. Strong problem-solving, project management, and communication skills help coordinate teams and interface with other engineering disciplines. These skills and qualities ensure the safe, efficient, and reliable operation of complex industrial processes.

What is the difference between Senior Instrument Engineer vs Instrument Technician?

AspectSenior Instrument EngineerInstrument Technician
CredentialsBachelor's degree in Engineering, certifications like CSE or ISATechnical diploma or associate degree, specialized training
Work EnvironmentDesign, project management, troubleshooting in industrial plantsInstallation, maintenance, calibration on-site
Industry UsageEngineering firms, oil & gas, manufacturingRefineries, power plants, process industries

While both roles involve instrumentation, the Senior Instrument Engineer focuses on design, planning, and troubleshooting at a higher level, often overseeing projects. The Instrument Technician handles hands-on installation, maintenance, and calibration tasks. Both roles are essential in industrial settings but differ in responsibilities and required qualifications.

Infographic showing various Senior Instrument Engineer job openings in Ontario as of June 2026, with employment types broken down into 94% Full Time, 3% Part Time, and 3% Contract. Highlights an 89% Physical, 3% Hybrid, and 8% Remote job distribution, with an average salary of $114,616 per year, or $55.1 per hour.
Senior Electrical Engineer

Senior Electrical Engineer

Tetra Tech

Thunder Bay, ON

CA$120K - CA$140K/yr

Other

Posted 11 days ago


Tetra Tech rating

5.8

Company rating: 5.8 out of 10

Based on 40 frontline employees who took The Breakroom Quiz

336th of 357 rated engineering


Job description

The Opportunity:

Tetra Tech is adding a Senior Electrical Engineer to our EI&C team based in Thunder Bay, ON. This is a new vacant position for which we are actively recruiting.

Why Tetra Tech:

At Tetra Tech, we are Leading with Science to solve the world's most complex challenges. Our industry-leading experts in engineering and consulting are committed to driving positive change in communities around the world. For nearly 60 years, we have been at the forefront of innovation and sustainability. Today we stand as a market leader, offering cutting-edge solutions in water, environment, energy, and international development. Our work has improved more than 625 million lives around the world. 

Our office specializes in small to mid-sized projects for clients across Canada. The types of clients we work for include:

  • Mining and Mineral Processing
  • Heavy Industrial Facilities
  • Municipal & Utilities
  • Water Treatment

Your Impact:

Join Tetra Tech to make a real difference. Our work leverages cutting-edge technologies, advanced analytics, and the expertise of world-class scientists and engineers to create meaningful change around the world. Discover your full potential - join us to advance your career while leaving a lasting legacy.

Your Role:

  • Assist with the design of power distribution, control, communication, and lighting systems.
  • Assist with the design of instrumentation and process control systems.
  • Develop standard electrical and instrumentation (E&I) deliverables, including:
    • Equipment specifications, single-line diagrams, motor schematics & wiring diagrams, cable block diagrams, cable schedules, power & control layouts, instrumentation and valve specifications, instrument loop drawings, instrument location drawings, control system panel layouts and wiring diagrams, and installation scopes of work.
  • Assist with technical calculations and use software for load calculations, arc flash studies, fault & coordination studies, and power system design.
  • Assemble tender and construction documents and drawings for issue to clients.
  • Participate in design reviews to ensure that documents and drawings are properly checked in accordance with company and client standards.
  • Assist with industrial control system programming (PLC and/or DCS) when required.
  • Perform on-site E&I field reviews and construction assistance with senior staff when required.
  • Assist senior staff with on-site commissioning and start-up when required.
  • Work collaboratively on multidiscipline projects with our project managers, project engineers, and the other engineering disciplines in our offices.
  • Conduct activities in line with internal procedures, legislation, and industry standards.
  • Pursue continuous professional development and maintain a high degree of discipline knowledge and awareness.
  • Work in a safe manner at all times and report all health and safety incidents and concerns.
  • Additional duties as required.

Qualifications:

  • Bachelor's degree in electrical or electronics engineering or a related field.
  • Minimum 15 years of relevant experience.
  • Must be registered as a professional engineer with PEO.
  • Experience in consulting, mining, forestry, or other industries an asset.
  • Ability to effectively plan time commitments on multiple concurrent projects.
  • Good interpersonal skills.
  • Good written and oral communication skills.
  • Willingness and ability to travel as needed.  

The salary range for this position is $120,000 to $140,000 per year. Please note that Tetra Tech considers various factors in determining pay, including but not limited to: education, relevant and demonstrated work experience in the role, skills, geographic location, qualifications, certifications, and other competencies relevant to the needs of the business.

Life at Tetra Tech:

The perks of working at Tetra Tech include:

  • Comprehensive and market-competitive benefits.
  • Meri-based financial rewards.
  • Flexibility and company-wide commitment to work/life balance.
  • Collaborative team atmosphere that values the contributions of all employees.
  • Learning and development opportunities for ongoing professional growth. 

About Tetra Tech:

Tetra Tech is the leader in water, environment, and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide. Our 25,000 employees work together to provide clear solutions to complex problems by Leading with Science to address the entire water cycle, protect and restore the environment, design sustainable and resilient infrastructure, and support the clean energy transition. 
 

Tetra Tech is proud to be an Equal Opportunity Employer. All qualified candidates will be considered without regard to race, color, religion, national origin, age, disability, sex, marital or familial status, status as a protected veteran, or any other characteristic protected by law.


Tetra Tech may use AI-enabled tools to screen, assess, and assist in selecting applicants for this position based on job-related criteria. However, a human decision-maker will decide who moves forward throughout every stage of the hiring process.


We invite applications from all interested parties.


Explore our open positions at https://www.tetratech.com/careers. Follow us on social media to learn more about our people, culture, and opportunities:
LinkedIn: @TetraTechCareers
X (Twitter): @TetraTechJobs
 

Additional Information
  • Organization: 719 ICE

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