Senior Engineer, Relief Valves & System… at Cenovus Energy · Lima

Worker Type: Employee

Job Post End Date: 07/26/2026

About this opportunity:

Cenovus Energy is seeking a Relief Valve & Relief Systems Technical Authority based in our Ohio refineries to support downstream operations, with emphasis on our Ohio refineries. This role leads pressure relief device training, oversees the relief systems technical assurance program, and supports sites through risk reviews, HAZOPs, and technical consultations. The position also focuses on building organizational capability through mentorship and training. Experience in process design and front‑end project development is a strong asset.

What you’ll do:

• Serve as the Relief Valve Technical Authority, providing expert pressure relief engineering support across downstream sites.
• Support projects and operations through technical reviews, troubleshooting, and approval of relief device sizing and system calculations, setting and implementing engineering technical practices, and drive integrated, pragmatic solutions focused on risk management, operating efficiency, defect elimination and standardization.
• Lead the development and maintenance of training and technical assurance programs for pressure relief sizing and downstream systems.
• Evaluate and approve API 520/521 and flare system design exceptions, overseeing the exception‑approval process at each site.
• Participate, on an as-needed basis, in HAZOPs, flare risk assessments, and investigations to support safe and reliable operations.
• Standardize and guide the creation of technical documentation for pressure relief and flare disposal systems.
• Collaborate regularly with operations, maintenance, inspection, and other SMEs to ensure consistent technical practices

Who you are:

• Legally authorized to work in the US
• Bachelor’s degree in chemical engineering or a related engineering discipline.
• 8+ years of experience with refining, upstream, or petrochemical domain, with at least 3+ years of design experience in relief systems. Expert or specialized knowledge of relief valve calculations and relief systems is mandatory. Lesser experience may be considered if the experience is more concentrated on Relief systems and flares.
• Working knowledge of pressure relief device sizing, selection, and disposal systems; experience with relief system calculations
• Good working knowledge of process simulation tools such as PetroSim, HYSYS, PRO‑II, or Aspen Flare Analyzer, AFT Fathom, etc.
• Understanding of core process engineering deliverables (PFDs, P&IDs, heat and material balances, hydraulic calculations, overpressure scenarios).
• Strong knowledge of relevant industry standards (e.g., API 520/521, API RP 576) with willingness to deepen expertise.
• Experience with front‑end project development and equipment design.
• Strong technical communication skills with the ability to collaborate effectively across operations, maintenance, and engineering teams.

We acknowledge the value of transferrable skills and may consider equivalent combinations of experience and education should you not meet a specific requirement.

Note: The application deadline for this position is 11:59 PM MT April 12, 2026.

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If you require accessibility assistance to complete the on-line application or otherwise apply for an open position with Cenovus, its subsidiaries and affiliates, please email careeropportunities@cenovus.com.

Who we are:

Cenovus is an integrated energy company headquartered in Calgary. We’re committed to maximizing value by developing our assets in a safe, responsible and cost-efficient manner.

We operate in Canada, the United States and the Asia Pacific region. Our downstream operations include upgrading, refining and marketing operations in Canada and the United States. We are currently the largest refiner in Ohio and transport products from our refineries in Lima and Toledo, Ohio and Superior, Wisconsin via pipelines, rail cars and trucks to customers throughout the United States.

Other operations include oil sands projects in northern Alberta, thermal and conventional crude oil and natural gas projects across Western Canada, crude oil production offshore Newfoundland and Labrador and natural gas and liquids production offshore China and Indonesia.

Find Cenovus on LinkedIn, Facebook and Instagram.

The Cenovus experience

Total rewards

We’re committed to being an employer of choice through competitive compensation and our comprehensive total rewards package, including:

• Generous paid vacation
• Annual bonus
• Retirement savings plan matching
• Long-term incentives*
• Medical & dental coverage
• Life insurance
• Disability benefits
• Employee assistance program
• Virtual healthcare coverage
• Generous leave of absence programs
• Fitness membership reimbursement

*Eligibility for Total Rewards varies by position. This role may not be eligible for all Total Rewards offerings.

Our development philosophy

We foster a culture of continuous learning and development to support employees as they build meaningful careers. We offer a variety of employee development initiatives, including:

• Internal course offerings
• Education assistance for additional development
• Opportunities to work on special projects
• Leadership development programs for emerging and established leaders

We actively promote internal job movement, recognizing the value of gaining new perspectives, building connections across teams, and applying expertise in new ways. As a fully integrated energy company, we believe that sharing knowledge across our business and operations creates stronger outcomes—for employees and for the company as a whole.

Our culture

• Our purpose: We energize the world to make people’s lives better.

• Our values:

  • Protect what matters
  • Do it right
  • Make it better
  • Do it together

• Cenovus Cares: We believe in the power of purpose-driven work. Our Employee Giving and Volunteering Program, Cenovus Cares, connects our people to our purpose, inspiring action and elevating impact year-round.

  • Support causes you care about with volunteer opportunities in and outside of work.
  • Earn donation grants while volunteering (up to $1,000 per event).
  • Receive donation matching up to $25,000 annually.

• Staff resource groups: We have various staff resource groups to help ensure our people feel a sense of belonging and can grow and do their best work. These voluntary groups are employee-led and all groups are open to all staff in all locations.

Equal opportunity employer

We believe a workplace where everyone has merit-based opportunities to grow, achieve career aspirations and feel a sense of belonging benefits our people, our company and the regions where we live and work. We embrace and encourage different perspectives and approaches, which help us make better business decisions. We believe that through this approach, we can solve challenges, seize opportunities and unlock innovative solutions.

To achieve an unbiased and respectful workplace, individuals are evaluated based on qualifications, merit and abilities, and we encourage applications from all qualified candidates. We also acknowledge the value of transferrable skills and may consider equivalent combinations of experience and education should you not meet a specific requirement.

For more information about working at Cenovus, visit cenovus.com.

The requirements of this posting may be modified to support business needs. Title and compensation administration will be based on the skills and capabilities of the successful incumbent.

Interested in this opportunity? Click the Apply link.

If you are a CURRENT EMPLOYEE, please apply by going to our Internal Career Site.