Controls Engineer – Building Automation Systems (BAS)

LeoForce; St. Louis (MO); On-site; USD 90,000 - 110,000; Full time

Benefits offered by this job

Medical, dental and vision insurance

401(k) - company match/profit sharing

Paid Vacation/PTO

Paid Holidays

Annualized merit increases

Advancement opportunities

Job summary

LeoForce is seeking a Controls Engineer to join its building automation team in St. Louis, MO.

You’ll design DDC/BAS control systems for commercial and institutional facilities, develop controller programs, graphics, and databases, and collaborate with project managers and technicians from design through commissioning. Ideal candidates have 3+ years in BAS/DDC, experience with HVAC control systems, and the ability to read drawings and specs.

Qualifications

• 3+ years of BAS/DDC design, programming or engineering experience.
• Experience with commercial HVAC control systems and energy management systems.
• Ability to read mechanical drawings, electrical schematics, control diagrams, specs and sequences of operation.
• Strong problem solving, organizational and communication skills.
• Proficiency with Microsoft Office and common engineering software.
• Engineering degree or equivalent combination of education and BAS experience preferred.

Responsibilities

• Design complete DDC/BAS control systems from plans and specs.
• Develop and configure controller programming, graphics, databases, and interfaces for HVAC equipment.
• Select and verify control hardware and field devices for performance.
• Review project scope, requirements, budgets, and schedules with project managers.
• Produce control drawings, submittals, network architecture, O&M manuals, and as-built docs.
• Coordinate with purchasing and operations to ensure timely material delivery.
• Assist with system startup, commissioning, and turnover to customers.
• Provide customer training and technical support throughout project execution.
• Troubleshoot issues and collaborate to resolve challenges.
• Maintain clear communication with customers and project stakeholders.

Skills

BAS design

HVAC control

Reading drawings

Problem solving

Communication

Team coordination

Travel willingness

Education

Engineering degree or equivalent

Tools

Microsoft Office

Job description

Job Description

Location: St. Louis,MO, US

Experience: Mid Level
Salary: $90,000 - $110,000 per year

Job Details

Controls Engineer - Building Automation Systems (BAS)

About the Opportunity

An established building automation and systems integration company is seeking a Controls Engineer to join its growing engineering team. This organization delivers complete automation solutions for commercial, healthcare, industrial, education, government, and mission-critical facilities, providing expertise in building automation, HVAC controls, life safety, security integration, and related building technologies.

This position offers the opportunity to work on a wide variety of projects from initial design through commissioning while collaborating with project managers, field technicians, and customers to deliver high-quality building automation solutions.

What You'll Do

• Design complete DDC/BAS control systems based on project plans, specifications, and sequences of operation.
• Develop and configure controller programming, graphics, databases, and front-end interfaces for HVAC equipment and building automation systems.
• Select and verify control hardware, field devices, and system components to ensure compatibility and performance.
• Support project managers by reviewing project scope, engineering requirements, budgets, and schedules.
• Produce engineering documentation including control drawings, submittals, network architecture, O&M manuals, and as-built documentation.
• Coordinate with purchasing and operations teams to ensure timely delivery of project materials.
• Assist with system startup, point-to-point checkout, commissioning, functional testing, and final project turnover.
• Provide customer training and technical support throughout project execution.
• Troubleshoot system issues and collaborate with internal teams to resolve technical challenges.
• Maintain strong communication with customers, field personnel, and project stakeholders throughout each phase of the project.

What We're Looking For

• 3+ years of experience designing, programming, or engineering Building Automation Systems (BAS/DDC).
• Experience with commercial HVAC control systems and energy management systems.
• Ability to read and interpret mechanical drawings, electrical schematics, control diagrams, project specifications, and sequences of operation.
• Strong understanding of HVAC equipment including AHUs, RTUs, VAVs, chillers, boilers, pumps, cooling towers, and associated control strategies.
• Experience supporting commissioning, startup, and system integration activities.
• Strong problem-solving, organizational, and communication skills.
• Proficiency with Microsoft Office and common engineering software.
• Engineering degree or equivalent combination of technical education and relevant BAS experience preferred.
• Willingness to travel to customer sites as needed, including occasional overnight travel.

A bit about us:

An established building automation systems integrator specializing in HVAC controls, DDC systems, and integrated building technologies for commercial and institutional facilities.

Why join us?

• Medical, dental and vision insurance
• 401(k) - company match/profit sharing
• Paid Vacation/PTO
• Paid Holidays
• Annualized reviews for merit increases
• Potential for advancement.