Senior Estimator

We are seeking a senior-level Pre-Sales Engineer with strong experience in physical security systems and network infrastructure to support client engagements and proposal development from our Torrance, CA office.
This role serves as the technical bridge between sales, engineering, and customers. You will work directly with clients to understand their business and technical needs, design scalable physical security solutions, and clearly document requirements to support accurate estimating, BOM development, and proposal creation.
The ideal candidate is technically strong, confident in front of clients, and able to clearly explain complex concepts through both conversation and written documentation.

What you'll do:

• Act as the primary technical liaison between sales, clients, and engineering/estimation teams
• Lead and participate in client discovery sessions, site walks, and technical discussions
• Translate customer requirements into high-level physical security and network solution designs
• Support sales through technical presentations and solution positioning
• Review and respond to RFPs, RFQs, SOWs, and design documents
• Produce detailed technical documentation, including:
  • Solution narratives
  • Scopes of work
  • Assumptions and clarifications
  • Design intent documents
• Partner with estimators and engineers to ensure requirements are accurately reflected in BOMs and proposals
• Work with manufacturers and vendors to validate solution design and pricing
• Support conceptual drawings and system layouts using tools such as Bluebeam or IPVM
• Participate in proposal reviews, solution reviews, and project handoff meetings
• Provide technical guidance during project kickoff and support execution teams as needed

Required experience:

• 8+ years of experience in pre-sales engineering, solution engineering, estimation, or system design
• Strong background in video surveillance, access control, and supporting network infrastructure
• Solid understanding of:
  • Network switching, routing, and wireless connectivity
  • Server-based and cloud infrastructure
  • Physical layer infrastructure (fiber, copper, pathways)
• Proven ability to engage directly with clients and lead technical discussions
• Strong technical writing skills with experience producing clear scopes and requirements
• Ability to read and interpret RFPs, construction drawings, and technical specifications
• Strong communication, organizational, and problem-solving skills
• Proficiency with Microsoft Word, Excel, and Outlook

Preferred experience and skills:

• Experience with physical security platforms such as Verkada, Brivo, Axis, Avigilon, Hanwha, Hirsch, or Milestone
• Familiarity with Cisco and Aruba networking platforms
• Experience designing integrated security and network solutions
• Exposure to wireless backhaul and remote connectivity solutions
• background with server-based video management systems (VMS)
• Prior field, installation, or project delivery experience
• Knowledge of structured cabling systems and infrastructure design

Preferred certifications (not required):

• RCDD
• CCNA, Aruba, or similar networking certifications
• Manufacturer certifications in security or networking technologies

This role is ideal for someone who enjoys being hands-on in the early stages of projects, working directly with customers, and owning the technical design and documentation that sets projects up for success.
Job Type & Location
This is a Permanent position based out of Torrance, CA.
Pay and Benefits
The pay range for this position is $135000.00 - $150000.00/yr.
Our partnership with this Client goes back 2 decades. Over the last 2 years, we have built on this foundation and earned exclusive business for all of their technology positions. We are now having managed services conversations with this Client because of how well we have shown up with top IT talent. We have great relationships with the owners as well as with all of executive leadership at this organization. We are positioned very well, can provide timely feedback, and high odds of a successful interview. Our Client is an IT Managed Services Provider that brings 35 years of industry experience to the table. They design, build, and maintain best-of-breed systems, including networks, security, data center, wireless, cloud, audiovisual, and managed solutions. They leverage technology to improve business outcomes. Their main customers in the Greater Los Angeles and San Diego areas include many local area hospitals, military bases, ports, and various schools. Many of their upcoming projects will revolve around the 2028 Olympics. They are preparing SoCal to be a fully digital and connected City. our Client offers free HMO medical benefits for yourself or they also offer PPO as an option you can pay into. They offer dental and vison benefits as well. 401k, matching 10%. Paid holidays, sick time, and PTO.
Workplace Type
This is a fully onsite position in Torrance,CA.
Application Deadline
This position is anticipated to close on May 8, 2026.
>About TEKsystems:
We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems and TEKsystems Global Services

We're a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We're a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We're strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We're building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.