Controls Systems Engineer (HVAC/BAS)

Our client is a building-automation industry leader in Manchester, NH, known for a traditional work week and extended contracts that provide job security and stability.

About the role

We are seeking a Controls Systems Engineer to support the design, development, and implementation of commercial HVAC Building Automation Systems (BAS). This role splits time between office-based engineering and field support, ensuring control systems are designed, configured, and implemented to meet project requirements.

Responsibilities

• Design and engineer commercial HVAC control systems for BAS projects.
• Develop control-system architecture, sequences of operation, and system documentation.
• Support multiple commercial projects simultaneously from design through commissioning.
• Collaborate with project managers, field technicians, subcontractors, and customers to deliver successful project outcomes.
• Review mechanical and electrical drawings to develop control solutions.
• Provide technical support during system installation, startup, and commissioning.
• Troubleshoot and resolve control-system issues as needed.
• Travel to customer sites for project support, testing, and field coordination.

Requirements

• Minimum 3 years of experience with commercial HVAC controls or Building Automation Systems.
• Experience designing or engineering HVAC control systems for commercial buildings.
• Knowledge of Building Automation Systems (BAS) and HVAC control strategies.
• Ability to read and interpret mechanical, electrical, and control drawings.
• Strong troubleshooting, analytical, and communication skills.
• Valid driver’s license and willingness to travel to customer sites using a personal vehicle.

Preferred Qualifications

• Associate’s or Bachelor’s degree in Mechanical Engineering, Electrical Engineering, Instrumentation, or a related technical field.
• Experience supporting large commercial buildings, campuses, healthcare, education, or industrial facilities.
• Previous experience with BAS platforms and commercial HVAC control systems.
• Senior HVAC Controls Technicians with strong commercial controls experience who are interested in transitioning into engineering are encouraged to apply.

Work Environment

• Primarily office and customer-site based.
• Approximately 30–50% field work and 50–70% office work.
• Standard work schedule with occasional flexibility based on project needs.
• Local travel within the assigned service territory.

Schedule

• Shift hours: 6:00 AM–2:30 PM or 7:00 AM–3:30 PM.
• Primarily onsite (office + customer sites); limited remote work with manager approval.
• Personal vehicle required for local travel.

Additional Details

Duration: 6-month temp-to-hire contract. Location: Manchester, NH 03109.

About MARS Solutions Group

MARS Solutions Group provides meaningful work opportunities by understanding that employment fit is a combination of people, process, and technology. We leverage our experienced and compassionate team to match you with the right advanced-technology role and stay connected to help you attain your professional goals.