Customer Systems Engineer

Mariner; New Brunswick; On-site; CAD 70,000 - 90,000; Full time

Job summary

A technology solutions company in New Brunswick is seeking Engineers and Physicists for their Systems Engineering team. This full-time role involves planning, implementing, and supporting central plant monitoring and predictive control solutions. The ideal candidate will have a B.Sc. or M.Sc. in Physics, Mechanical, or Electrical Engineering, with a strong understanding of thermodynamics. The position offers competitive salary, benefits, and a collaborative, values-driven workplace.

Benefits

Attractive salary and equity-based rewards program

Retirement savings program

Health, dental, vision, life and disability insurance

Unlimited training

Qualifications

• Self-starter who takes initiative.
• Well organized, thorough, and reliable.
• Comfortable taking on new problems and challenges.

Responsibilities

• Become a subject matter expert in central plant equipment and controls.
• Prepare detailed technical reports and documentation for clients.
• Collaborate with customers and product teams to implement solutions.
• Analyze operation and performance of MPC, AI, and Analytics systems.
• Provide expert-level technical support to customers.
• Diagnose and troubleshoot heating and cooling plants.

Skills

Strong understanding of thermodynamics and fluids

Strong foundation in automatic control systems

Proficiency in Python or comparable languages

Curious and passionate about work

Good listening skills

Strong analytical and problem-solving skills

Collaborative mindset

Education

B.Sc. or M.Sc. in Physics, Mechanical or Electrical Engineering

Job description

Posted Tuesday, February 10, 2026 at 4:00 AM

WHO WE ARE

SHIFT Energy is part of the Mariner group of companies. We’re working at the intersection of AI and the Industrial Internet of Things (IioT) to deliver advanced monitoring, automation and control systems for central plants. These plants represent one of the single biggest opportunities to reduce energy use, water use and CO2 emissions in North America. We help our clients achieve best-in-class central plant performance, reduce energy use, carbon emissions and costs. We optimize the operation, control, and maintenance of central plants across sectors including manufacturing, healthcare, education, commercial real estate and more.

WHAT SHIFT VALUES AND REWARDS

• High performers: we value high performers because they make a much bigger impact.
• Candor: we seek honest feedback and welcome different points of view.
• Greatness: we always try to improve ourselves, our team and our decisions.
• Commitment: once we decide, we all commit to the decision and to delivering results.
• Customer advocacy: we advocate for our customers, and we prioritize their needs
• Customer knowledge: we learn from our customers to discover new opportunities.
• Accountability: we are empowered, and we take responsibility for our actions and outcomes.
• Execution: we execute with precision to achieve great results.

SHIFT is growing its Systems Engineering team! We are looking for Engineers and Physicists to join our Systems Engineering team full-time in Saint John. In this role, you will work directly with new customers to plan, implement and support central plant monitoring and predictive control solutions: identify customer needs and market opportunities and collaborate with product managers to develop new product features and capabilities. You will be part of a high-performing, multidisciplinary team of experts deploying leading-edge control software and analytics tools and supporting customers to maximize the benefits of those systems.

WHAT YOU’LL BE DOING IN THE ROLE

This is a unique role that offers you the chance to experience and impact every aspect of the business from the lab to the customer’s plant and back. In this role, you will:

• Become a subject matter expert in central plant equipment, controls and operations.
• Prepare detailed technical reports, proposals, and documentation for clients and internal stakeholders.
• Collaborate with customers, product teams and sales to plan, implement and operationalize leading edge predictive control solutions for central plants.
• Become a trusted advisor and go-to-expert for your customers in all aspects of the solution. Develop a proactive support relationship with your customers:
• Analyze the operation and performance of production MPC, AI and Analytics systems: ensure deployed systems meet or exceed customer expectations.
• Provide expert-level technical and troubleshooting support to your customers.
• Diagnose and troubleshoot heating and cooling plants and controls: identify root causes and implement effective solutions.
• Identify product blind spots or underperformance: recommend / implement improvements.
• Work with our customers and partners to discover new requirements and opportunities.
• Expand the company’s knowledge base while collaborating with team members specializing in simulation, modeling and development.
• Contribute to product development projects
• Support the evolution of product vision and roadmap.

WHAT SKILLS / QUALIFICATIONS YOU’LL NEED TO DO THE JOB

• B.Sc. or M.Sc. in Physics, Mechanical or Electrical Engineering,
• Strong understanding of thermodynamics and fluids
• Strong foundation in automatic control systems
• Proficiency in Python or comparable languages would be an asset
• Well organized, thorough and reliable.
• Comfortable taking on new problems and challenges
• Curious and passionate about the work you do and the technology you deliver.
• Looking to make an impact – you seek responsibility – you never deflect it.
• Always learning & improving your skills and knowledge to be the best at what you do.
• A self-starter: you take the initiative
• A good communicator: you have good listening skills and ability to present your ideas effectively
• A strong analyst with great problem-solving skills:
• Collaborative: you enjoy working with others

SHIFT OFFERS YOU

• A values-driven workplace where people like you thrive and really matter.
• Attractive salary and equity-based rewards program.
• Retirement savings program, health, dental, vision, life and disability insurance plans, and access to e-health care.
• Paidvacation, maternity/parental leave, paid sick leave, and paid MyLife days
• Unlimited training.

Central plant optimization is one of the single biggest opportunities to reduce energy demand, CO2 and water consumption in North America. If this role interests you, and you meet the qualifications, we’d love to hear from you.