Careers

At 3Si, our mission is to make your world, safer. As a global leader in innovative security technology, we help businesses and law enforcement prevent and respond to crime through field-proven solutions and trusted partnerships. With over 100+ years of combined experience through our merged companies, our expertise drives measurable impact in communities worldwide.

We specialize in GPS tracking, video surveillance, and integrated response technologies that deter theft and accelerate criminal apprehension. Designed for retail, financial institutions, law enforcement, and more, our solutions combine cutting-edge tools with unmatched response capabilities. Through our exclusive DirectToDispatch™ technology, verified crime alerts are sent directly to law enforcement dispatch centers in real time—bypassing traditional third-party monitoring delays—to enable rapid, precise response when it matters most.

At 3Si, meaningful work makes a difference. We’re a purpose-driven team that values innovation, trust, and collaboration. From engineering to sales and support, every role contributes to our mission to protect communities and make the world safer. We offer a hybrid, flexible work culture, competitive benefits, and the chance to grow alongside a team of passionate, dedicated professionals.

Join us—and be part of something that matters. The Field Service Representative is the first line of contact to the end user for all 3Si products and will be responsible for installing, maintaining, servicing, and training customers on our products in financial branches, retail stores, and ATM cash machines. This role requires interacting with our customers, which includes employees in financial branches, retail stores, third party vendors, and corporate security managers. This role will cover all service-related activities in Massachusetts, Maine, and New Hampshire.

Knowledge, Skills, and Abilities

•         Strong time management skills
•         Able to effectively manage inventory
•         Customer service/support skills a must

Qualifications

• Associate degree in Electronics or related field
• Minimum of 2 years of relative experience working in a field service role
• Experience working with digital CCTV systems: IP cameras, Network Video Recorders, IP networks is a plus
• Valid driver’s license and driving record that satisfies 3Si’s safety requirements
• Pre-employment background check and drug screening

Additional Comments

• The position will be based in Boston MA
• Standard workdays for this role are Monday through Friday
• 40% of travel which includes both local and overnight
• Must be able to climb and work on ladders of various heights.

Salary range: $60,000–$65,000 annually