Job Description

For over 29 years, One Source Security has been devoted to providing peace of mind through innovative technology and exceptional customer service. Our goal is to ensure comprehensive and reliable security solutions to our neighbors around Merrimack, NH. By continuously adopting cutting-edge technology, our company has established a solid reputation for enhancing security measures for both residential and commercial clients, driven by our steadfast commitment to client satisfaction and proactive security strategies.



Due to continued growth, we are looking for an experience Installation Tech to join our team in Merrimack, NH. This role is responsible for independently installing, programming, and servicing low?voltage security systems, including alarms, surveillance cameras, and access control. The technician ensures proper wiring, system functionality, documentation, and troubleshooting while maintaining high safety and quality standards. You will also coordinate with project teams and provide professional customer support during system handovers and installations.

Primary Responsibilities:

Independently install and service wired and wireless alarm systems, IP and analog surveillance cameras, and access control solutions in commercial and residential environments. Lead the configuration, programming, and testing of security systems to ensure full functionality and compliance with project specifications. Plan, run, terminate, and neatly manage low-voltage wiring, including troubleshooting and correcting wiring issues as needed. Perform systematic testing, diagnosis, and resolution of system and device faults in the field. Conduct professional client system handovers, including clear operational training and basic user-level troubleshooting guidance. Accurately complete project documentation, including as-built drawings, device lists, programming records, and service reports. Coordinate with project managers, sales, and other trades to ensure projects stay on schedule and meet quality standards. Maintain company tools, equipment, and vehicles in good working order and manage truck stock inventory. Adhere to all industry safety standards, electrical codes (where applicable), and company policies, and promote safe practices on every job site.

Qualifications and Requirements:

Proven experience as a security installation technician or low-voltage installer (typically 3+ years) with alarm, video surveillance, and/or access control systems. Strong working knowledge of low-voltage wiring practices, terminations, cable management, and labeling standards. Demonstrated ability to read and interpret construction drawings, riser diagrams, floor plans, and wiring schematics. Proficiency with hand tools and power tools, and the ability to safely operate ladders, lifts, and related equipment. Solid understanding of basic networking principles (IP addressing, subnetting, PoE, switches, and routers) as they apply to security devices. Strong troubleshooting skills with the ability to diagnose and resolve field issues with minimal supervision. Excellent communication and customer service skills; able to interact professionally with clients, contractors, and colleagues. Highly organized, detail-oriented, and capable of managing multiple tasks and priorities in a fast-paced environment. Physical capability to perform all job duties, including working at heights, lifting and carrying equipment, and working in confined spaces as required. Reliable transportation to job sites in the Merrimack area and a valid driver's license with a good driving record.

Preferred Qualifications (Not Required):

Manufacturer certifications for alarm, access control, or video platforms (e.g., DSC, Honeywell, Bosch, Lenel, Genetec, Milestone, etc.). Previous experience leading small crews or mentoring junior/assistant technicians. Advanced networking knowledge (VLANs, QoS, remote access, VPNs) for complex IP-based security systems.

As part of the DU Family of Companies, we believe that investing and empowering our employees as leaders develops an organization that delivers innovative solutions and services that create a superior customer experience. The unique blend of our leader's abilities and the ownership of their work, combined with our culture and values, creates something that is simply described as the Davis-Ulmer difference.

Why Choose

DU Family of Companies?

+ Competitive Compensation: We offer competitive pay rates for experienced professionals, ensuring your skills are recognized and rewarded appropriately.
+ Comprehensive Benefits Package: Enjoy an industry-leading benefits package that includes medical, dental, vision, and additional perks, ensuring your health and well-being are taken care of.

+ Strength of the Family: The Davis-Ulmer Family of Companies, with over 30 locations across the East Coast and Midwest, epitomizes the strength of a team-first mindset. Embracing a culture of collaboration, we unite to share knowledge, resources, and best practices across our network of branches. This collective approach strengthens us as a cohesive group, amplifying our impact far beyond what any individual business unit could achieve alone.

+ Backed by APi Group: As a subsidiary of APi Group, a publicly traded, multi-billion-dollar corporation headquartered in Minnesota, we provide the financial stability and support needed for success. Benefit from world-class training and leadership development opportunities, backed by a powerhouse in the Fire Life Safety & Security industry.

+ Long-Term Career Relationships: Many of our employees have been with us for 20+ years! We believe in investing in the right people, fostering enduring professional relationships that benefit both individuals and the company alike. Join us and become part of a community where your dedication is recognized and valued for the long term.

+ Values Match: We prioritize hiring individuals whose values align with ours. Our commitment to value-driven recruitment is a cornerstone of our People/Talent Development Operating Code.
Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected veteran status or other characteristics protected by law.



DAVIS-ULMER'S ENDURING PURPOSE: "To protect what people value most."