Systems Engineering Intern

This is a Full-time 16-month role commencing May 2026

For this role in Oakville, Ontario, The hourly wage range for this position is CAD $25 to $35 per hour. The actual wage offered will be determined based on factors such as education, experience, knowledge, skills, abilities, applicable market data for the work location, and internal equity considerations.

Come join us at Terrestrial Energy, a US developer of advanced, Generation IV nuclear reactors.  We are growing our workforce to develop and deploy our Integral Molten Salt Reactor (IMSR) small modular nuclear plant to provide cost-competitive, clean firm heat and power to industry.

The Company has recently completed a merger creating a publicly listed operating company  (NASDAQ “IMSR”), to secure the capital resources for our next growth phase.  With the current alignment of US Federal and State government, as well as industry interest in Small Modular Reactor (SMR) and advanced reactor technologies such as Terrestrial Energy’s IMSR, there is today a unique and compelling opportunity to participate in the execution of the company’s growth business plan.

The Company is building a team of high-performing business professionals and leaders in engineering, R&D, product management and business development areas at our Charlotte, North Carolina headquarters and future project sites.  We are looking for talented individuals who can help build the organization, processes, and goal-orientated corporate culture to lead the company in our expansion.  We are seeking people who:

Have US market experience and perspectives bringing good judgement and innovative approaches to problem solving and business plan execution.

Have demonstrated exceptional performance in past engineering projects.

Offer exceptional leadership and team building capabilities.

Have a deep understanding of the requirements for advanced reactor development.

Can assist in the creation of the discipline and organized company structure, and contributed to a culture of excellence, necessary for the development and deployment of the Company’s IMSR plant.

Can thrive in a fast growing and opportunity business environment, and are capable of flexibility and adaptability at a time of organizational change.

Have the specific skillset and experience for the following role:

The Systems Engineering Intern, under the direction of the Systems Engineering Manager, supports the development, integration, and coordination of Terrestrial Energy’s IMSR technology. This role is critical in assisting with systems-level definition, requirements management, interface coordination, and documentation across multidisciplinary engineering teams. The successful candidate will gain hands-on experience applying systems engineering principles in a highly regulated advanced nuclear technology environment, while contributing meaningfully to the Reactor Pilot Program and associated development activities.

Other Responsibilities Include:

Systems Engineering

Support development, maintenance, and organization of system requirements for IMSR systems and subsystems

Assist with requirements decomposition, allocation, and traceability across system, subsystem, and component levels

Help maintain system descriptions, functional breakdowns, and system architecture documentation

Support identification, documentation, and tracking of system assumptions, constraints, and design decisions

Assist with configuration management and change impact assessments from a systems perspective

Integration & Interfaces

Support identification and documentation of interfaces between engineering disciplines (mechanical, electrical, I&C, safety, licensing)

Assist in maintaining Interface Control Documents (ICDs) and interface registers

Participate in cross-functional technical meetings and support follow-up on actions and interface issues

Help track integration risks and dependencies across systems and subsystems

Verification & Validation

Assist in developing and maintaining requirements verification matrices

Support definition of verification methods (analysis, inspection, test, demonstration) for system requirements

Help organize verification evidence and documentation to support future testing and validation activities

Support systems-level thinking aligned with the V-model engineering approach

Documentation & Reporting

Prepare and update technical documentation including system summaries, requirement listings, and decision logs

Assist in preparing figures, block diagrams, and presentation material for internal design reviews

Maintain organized records within document control and configuration management systems

Support adherence to engineering processes and quality requirements

Collaboration

Work closely with Systems Engineering, Design Engineering, Safety, Licensing, and Project Management teams

Participate in design reviews and technical discussions to gain exposure to integrated reactor development

Interface with engineers across multiple disciplines to support coordinated system development

Contribute to continuous improvement of systems engineering tools and practices

Core Competencies:

Written and verbal communication

Project and task coordination

Technical documentation practices

Quality and compliance awareness

Digital engineering tools

Team collaboration and support

Analytical and problem-solving skills

Data-driven decision support

Initiative and willingness to learn

Planning and organizational skills

Adaptability to change

Requirements:

Education

Currently enrolled in a Bachelor’s or Master’s degree program in: Mechanical Engineering, Nuclear Engineering, Systems Engineering, Electrical Engineering, Chemical Engineering, Or a related engineering discipline.

Experience

Academic or co-op experience in engineering design, analysis, or technical documentation

Exposure to systems engineering concepts through coursework, projects, or internships

Technical Skills

Strong analytical and problem-solving skills

Understanding of systems thinking and interdisciplinary engineering principles

Proficiency with Microsoft Office tools (Excel, Word, PowerPoint)

Ability to read and understand technical documentation and engineering drawings

Familiarity with requirements management tools or modeling tools is an asset

Professional Skills

Strong attention to detail and organization

Clear technical writing and documentation skills

Ability to manage multiple tasks and meet deadlines

Willingness to learn and take initiative

Effective communication skills within a technical team environment

Assets:

Coursework or experience in systems engineering, requirements management, or project engineering

Familiarity with the V-model of systems engineering

Exposure to regulated industries (nuclear, aerospace, energy, medical, etc.)

Familiarity with tools such as DOORS, Jama, Polarion, SysML, or similar (academic exposure acceptable)

Interest in advanced reactor technologies or clean energy systems

 Benefits:

Mentoring/Coaching with Senior Employees/Leaders

Collaborative and supportive work environment

Opportunities to network across departments

Hands-on experience with real projects

Please submit a Resume, Cover Letter, and Transcripts (Unofficial copies are acceptable at this stage.)

Candidates must be legally authorized to work in CANADA without the need for sponsorship for employment visa status.

Terrestrial Energy requires that the successful candidate be able to access and use information subject to U.S. Export Control Laws, which mandate all citizenships (including dual citizenships) be from the U.S. Department of Energy’s List of Generally Authorized Countries (10 CFR Part 810 Appendix A and can be found here:
eCFR :: Appendix A to Part 810, Title 10 -- Generally Authorized Destinations

unless a specific authorization from the U.S. Department of Energy is obtained or unless you are a U.S. citizen, U.S. national, U.S. permanent resident, or protected individual under the U.S. Immigration and Naturalization Act (8 U.S.C. 1324b(a)(3)).

Additional information can be found here: 

https://www.energy.gov/nnsa/10-cfr-part-810.

Terrestrial Energy Inc. is an equal opportunity employer and does not discriminate on the basis of any legally protected status or group.  We encourage applications from all qualified individuals. 

If you require accommodation during the application or interview process, please advise us as soon as possible so appropriate arrangements can be made. If you require technical support in a format that is accessible to you, please contact [email protected]