Internship Defense Contractor Software Engineer Jobs in Calgary, AB

Looking for more than another engineering job?

Are you the engineer people call when the problem is too complex, too critical, or too important to get wrong?

Ready to join an elite team trusted for more than 50 years to solve the problems others can't?

About Stress Engineering Services

Stress Engineering Services (SES) is an elite, one-of-a-kind engineering consulting firm, trusted for more than 50 years to solve the problems others can’t. Our reputation is built on an uncompromising commitment to technical excellence, a highly selective team of experts, and a track record of delivering answers in the most complex, high-stakes environments. We operate at the intersection of deep technical expertise and real-world application, partnering with clients across energy, aerospace, consumer products, medical, and beyond. Our teams combine advanced analysis with hands-on testing, failure analysis, and practical engineering judgment to deliver solutions that perform where it matters most—in the field.

For our clients, that means a trusted partner known for rigor and results. For our people, it means joining an elite team tackling the most meaningful challenges in engineering.

About The Role:

We are currently seeking a Mechanical Engineer for our Engineering Mechanics and Design (EMD) business unit. As an active member of the EMD team, you will take on diverse hands-on projects involving component design/analysis, integrity assessment, failure analysis, repair solutions and remediation. You will have the opportunity to contribute to projects primarily in the energy industry, as well as projects in aerospace, consumer, defense, manufacturing, and utilities. This is an onsite opportunity located in Calgary, AB CANADA.

At SES we take pride in fostering an inclusive and dynamic workplace that values diverse perspectives and experiences. This position requires legal authorization to work in Canada. Candidates must be able to provide the necessary documentation to verify identity & employment eligibility. Responsibilities include:

• Review and perform API 579 Level 1, 2, and 3 fitness-for-service assessments.
• Conduct stress analysis and mechanical design for pressure vessels, piping systems, mechanical components, and plant equipment.
• Apply both computational and classical analysis methods, integrating findings with field instrumentation and strain gauge data.
• Coordinate and conduct onsite field visits to investigate and resolve client-reported issues.
• Prepare and review technical reports, proposals, and client presentations.
• Engage with industry associations and technical code committees to contribute thought leadership and build credibility.
• Mentor and support the development of junior engineers, fostering a collaborative, learning-focused environment.
• Identify and develop business opportunities within industries such as Refining, Chemical, Pipeline, and Plant Equipment.

Required Qualifications:

• MS in Mechanical Engineering with a minimum of 7 years of experience as a practicing engineer with relevant plant engineering experience OR 10+ years of relevant plant engineering experience in lieu of a master’s degree.
• Familiarity with relevant industry codes and standards: API 510, 570, 579, 580, 653; NACE; ASME Boiler & Pressure Vessel Codes; and NDE methods.
• Willingness and ability to travel domestically and internationally (must be able to obtain a Canadian passport without restrictions).

Preferred Qualifications:

• Ph. D in Mechanical Engineering.
• Proficiency with FEA software such as Abaqus or ANSYS.
• Competency in performing fracture mechanics calculations.
• Prior experience at a major oil company, refinery, chemical plant, or engineering consulting firm.
• Registered Professional Engineer (P.Eng.) license.

Why Join SES

• Solve problems that matter – Your work directly impacts product performance, safety, and reliability
• High autonomy + high ownership – You’re trusted to lead and deliver
• Broad technical exposure – Work across industries, materials, and challenges
• Collaborate with experts – Learn from recognized leaders in engineering and failure analysis
• Entrepreneurial environment – Be part of a team that values initiative, curiosity, and innovation
• Thought Leadership - You’ll have the opportunity to contribute to meaningful engineering insights, share your expertise with the broader industry, and build credibility as a trusted technical voice.

What’s in it for you?
At Stress Engineering, curiosity isn’t just encouraged—it’s expected. You’ll have the opportunity to deepen your technical expertise, broaden your industry exposure, and make a meaningful impact on real-world engineering challenges from day one.

We offer a comprehensive and competitive benefits package, including medical, dental, and vision coverage, paid time off, and holidays. Your compensation is thoughtfully aligned with your experience, expertise, and the value you bring to the team.

Own your impact. Build your future.
The work you do today contributes to long-term success that you share in, alongside a team that values collaboration, innovation, and accountability. We’re built for stability and growth, where your technical skills and problem-solving directly influence outcomes—not just for individual projects, but for the future of the company. If you’re driven by meaningful work, a strong team, and the opportunity to think like an owner, you’ll thrive at Stress Engineering.

Recruitment Process Disclosure
As part of your candidacy and potential future employment, you agree to maintain the confidentiality of proprietary, sensitive, and client-related information obtained through interactions with SES. This obligation applies during and after your engagement.

As part of our hiring process, Stress Engineering Services may use technology tools, including automated tools, to help organize, review, or evaluate application materials and interview-related information. These tools are used to support our recruiting process, but hiring decisions are not made solely by technology. If you need would like to request a reasonable accommodation or would like additional information about the process, please contact Human.Resources@Stress.com. Where applicable required by law, we will provide additional notices if a specific tool analyzes interview responses, assessments, or other information as part of your evaluation.

Stress Engineering Services Canada is committed to creating an inclusive workplace and welcomes applications from all qualified individuals. Employment decisions are based on business needs, job requirements, and individual qualifications without regard to race, color, ancestry, place of origin, religious beliefs, gender, gender identity or expression, age, disability, marital status, family status, sexual orientation, or any other characteristic protected by applicable law.

Stress Engineering Services Canada is committed to providing reasonable accommodation throughout the recruitment and selection process in accordance with applicable human rights legislation. Applicants requiring accommodation are encouraged to notify us at any stage of the hiring process

Candidates must be legally authorized to work in Canada at the time of application