Sr. HVAC Controls/BAS Service Technician

kbs; Denver (CO); On-site; USD 48,000 - 62,000; Full time

Benefits offered by this job

Medical, Dental, Vision Insurance

401(k) with company match

Paid Time Off

Paid Holidays

Company-provided training

Job summary

Kelso Building Services (KBS) in Denver, CO is seeking a Senior BAS Technician to service and optimize building automation systems across diverse facilities. You will diagnose, repair, and maintain BAS hardware and software, mentor junior staff, and engage customers to ensure peak facility performance.

The role leverages advanced remote monitoring and analytics, with responsibilities spanning field service, remote diagnostics, cybersecurity awareness, and lifecycle planning for BAS platforms.

Qualifications

• 3+ years of BAS service experience.
• Strong HVAC troubleshooting knowledge.
• Experience reading control drawings and sequences of operation.
• Experience commissioning and servicing DDC systems.
• Valid driver's license with acceptable driving record.
• Ability to pass background screening and drug testing.
• Strong communication and customer service skills.

Responsibilities

• Troubleshoot and repair BAS control systems and field devices.
• Diagnose HVAC, mechanical, electrical, and controls-related issues.
• Perform preventative maintenance and service agreement inspections.
• Support controller replacements, upgrades, migrations, and system expansions.
• Validate sequences of operation and optimize system performance.
• Assist with commissioning, retro-commissioning, and startup activities.
• Complete point-to-point verification and functional performance testing.
• Maintain accurate documentation and system backups.

Skills

BAS service

HVAC troubleshooting

Reading control drawings

Commissioning & servicing DDC

Customer communication

Education

Niagara N4 Certification

Tools

Tridium Niagara

Johnson Controls Metasys

Distech Controls

Delta Controls

Siemens Desigo

Honeywell WEBs

KMC Controls

Carrier i-Vu

Schneider EcoStruxure

Job description

Sr. BAS/HVAC Controls Technician

Kelso Building Services (KBS) - Denver, CO

Join One of the Fastest Growing Smart Building Teams in the Country

Kelso Building Services (KBS) is seeking experienced Senior Building Automation Systems (BAS) Service Technicians to support and grow our Building Automation Systems (BAS) service business throughout the country. This position is ideal for a highly skilled BAS professional who enjoys troubleshooting complex building systems, working directly with customers, mentoring junior technicians, and helping facilities operate at peak performance.

As a Senior BAS Technician, you will serve as a trusted technical resource for commercial, healthcare, education, industrial, retail, and mission‑critical facility customers while leveraging KBS's advanced remote monitoring and analytics capabilities through the Kelso Digital Operations Center (DOC).

Position Summary

The Senior BAS Technician is responsible for the service, maintenance, troubleshooting, repair, optimization, and customer support of Building Automation Systems and integrated smart building technologies. The role combines field service expertise with remote diagnostics, analytics, cybersecurity awareness, and customer relationship management.

This position requires a self‑motivated professional capable of independently resolving complex BAS and HVAC control issues while maintaining exceptional customer satisfaction.

Primary Responsibilities

• Troubleshoot and repair BAS control systems and field devices.
• Diagnose HVAC, mechanical, electrical, and controls‑related issues.
• Perform preventative maintenance and service agreement inspections.
• Support controller replacements, upgrades, migrations, and system expansions.
• Validate sequences of operation and optimize system performance.
• Assist with commissioning, retro‑commissioning, and startup activities.
• Complete point‑to‑point verification and functional performance testing.
• Maintain accurate documentation and system backups
• Support enterprise and site‑level building automation platforms.
• Assist customers with energy optimization initiatives.
• Configure alarming, trending, dashboards, and analytics.
• Support integration of HVAC, lighting, power monitoring, refrigeration, and specialty systems.
• Assist with Fault Detection & Diagnostics (FDD) initiatives.
• Utilize remote monitoring tools to identify and resolve issues proactively.
• Develop strong customer relationships.
• Serve as the primary technical contact for assigned accounts.
• Provide recommendations for system improvements and lifecycle planning.
• Identify and develop service agreement and project opportunities.
• Coordinate with project managers, service managers, and sales teams.
• Mentor junior technicians and apprentices.
• Assist with technical training and onboarding.
• Provide field leadership on complex service projects.
• Support technical standards and best practices.

Preferred Technical Experience

Experience with one or more of the following platforms:

• Tridium Niagara
• Johnson Controls Metasys
• Distech Controls
• Delta Controls
• Siemens Desigo
• Honeywell WEBs
• Alerton
• Reliable Controls
• KMC Controls
• Carrier i‑Vu
• ABB
• Schneider Electric EcoStruxure

Additional Experience Desired

• BACnet/IP
• BACnet MS/TP
• Modbus RTU/TCP
• LonWorks
• MQTT
• API Integrations
• Networking fundamentals
• VPN technologies
• Remote access solutions
• OT cybersecurity best practices

Qualifications

Required

• 3+ years of BAS service experience.
• Strong HVAC troubleshooting knowledge.
• Experience reading control drawings and sequences of operation.
• Experience commissioning and servicing DDC systems.
• Valid driver's license with acceptable driving record.
• Ability to pass background screening and drug testing.
• Strong communication and customer service skills.

Preferred

• Niagara N4 Certification.
• Manufacturer certifications.
• HVAC Technician certification.
• Electrical troubleshooting experience.
• Associate degree or technical training in HVAC, Controls, Electronics, or related field.

Compensation & Benefits

Compensation

$35.00 - $45.00+ per hour based on experience and certifications.

Overtime opportunities.

Performance incentives.

company vehicle

Benefits

• Medical, Dental, and Vision Insurance.
• 401(k) with company match.
• Paid Time Off.
• Paid Holidays.
• Company‑provided training and certifications.
• Career advancement opportunities.
• Access to industry‑leading smart building technologies.

Why Join KBS?

At Kelso Building Services, we are building the future of intelligent facilities through our nationwide Smart Buildings and Digital Operations initiatives. Our technicians are supported by the KBS Digital Operations Center, advanced analytics tools, remote engineering resources, and a growing team of BAS experts across the country.

If you are looking for a career where you can combine HVAC expertise, controls technology, data analytics, and customer engagement while working on some of the most advanced facilitie