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Senior Systems Engineer

Two Six Technologies

Herndon, VA · $117k–$176k a year · Posted October 29, 2026

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Pay compared with the market

This listing pays about $146,400 a year. Across 177 open senior systems engineer listings that state pay, the middle half runs $133,000 to $168,500 and the median is $133,000. That is inside the middle half of those listings, 10% above the median.

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About the job

At Two Six Technologies, we build, deploy, and implement innovative products that solve the world’s most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the boundaries of what’s possible to empower our team and support our customers in building a safer global future.

Overview of Opportunity

As a Senior Systems Engineer focused on Datacenter Infrastructure, you will design, implement, and maintain server-room and datacenter environments supporting unclassified and classified operations. You will work with servers, networking equipment, rack power, and cooling infrastructure across unclassified server rooms, SCIFs, and/or SAPFs. In addition to deployment and troubleshooting, you will own long-term infrastructure upkeep, including license management, hardware and software upgrades, system updates, configuration documentation, equipment labeling, and cable management.

This is a hands-on role requiring coordination with facilities, security, engineering, and operations stakeholders. This is a fully onsite role based in our Two Six Technologies office in Herndon, Virginia.

Responsibilities:

Design, plan, implement, and maintain datacenter and server-room infrastructure, including server, network, rack power, and cooling systems

Plan infrastructure capacity and equipment layouts, including rack space, power, cooling, and network connectivity, in coordination with the facilities team

Install, configure, test, troubleshoot, and maintain servers, network equipment, and associated rack infrastructure

Coordinate infrastructure changes and maintenance activities with facilities, security, engineering, and operations stakeholders

Manage infrastructure licenses, hardware and software upgrades, system updates, and lifecycle replacements

Maintain accurate infrastructure documentation, including configurations, layouts, changes, and maintenance records

Maintain equipment labeling and cable management standards, and update records when equipment or connectivity changes

Follow applicable change-control, safety, physical-security, and facility-access procedures

Identify infrastructure risks, capacity constraints, and reliability issues; recommend and implement improvements

Qualifications:

Bachelor’s degree in Computer Science, Information Technology, Engineering, or a related field and 5+ years of overall technical experience OR comparable education and experience will be considered

2+ years of experience in a data center, server room, or comparable critical infrastructure environment

Experience planning datacenter or server-room infrastructure, including power, cooling, and equipment layout requirements

Prior experience supporting infrastructure in a SCIF and/or SAPF

Hands-on experience installing, configuring, maintaining, or troubleshooting servers and networking equipment

Experience maintaining infrastructure documentation, equipment inventories, and configuration records

Active Top Secret/Sensitive Compartmented Information (TS/SCI) clearance

Preferred Skills:

CCNA certification

Advanced networking knowledge, including routing, switching, network design, and troubleshooting

Experience with server, network, rack power, or cooling technologies from relevant vendors

Familiarity with infrastructure monitoring, asset and license management, and change-control processes

Security Clearance Requirements:

Active Top Secret/Sensitive Compartmented Information (TS/SCI) clearance

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Two Six Technologies is committed to providing competitive and comprehensive compensation packages that reflect the value we place on our employees and their contributions. We believe in rewarding skills, experience, and performance. Our offerings include but are not limited to, medical, dental, and vision insurance, life and disability insurance, retirement benefits, paid leave, tuition assistance and professional development.

The projected salary range listed for this position is annualized. This is a general guideline and not a guarantee of salary. Salary is one component of our total compensation package and the specific salary offered is determined by various factors, including, but not limited to education, experience, knowledge, skills, geographic location, as well as contract specific affordability and organizational requirements.

Salary Range $117,100 — $175,700 USD

Looking for other great opportunities? Check out Two Six Technologies Opportunities for all our Company’s current openings!

Ready to make the first move towards growing your career? If so, check out the Two Six Technologies Candidate Journey ! This will give you step-by-step directions on applying, what to expect during the application process, information about our rich benefits and perks along with our most frequently asked questions. If you are undecided and would like to learn more about us and how we are contributing to essential missions, check out our Two Six Technologies News page! We share information about the tech world around us and how we are making an impact! Still have questions, no worries! You can reach us at Contact Two Six Technologies . We are happy to connect and cover the information needed to assist you in reaching your next career milestone.

Two Six Technologies is an Equal Opportunity Employer and does not discriminate in employment opportunities or practices based on race (including traits historically associated with race, such as hair texture, hair type and protective hair styles (e.g., braids, twists, locs and twists)), color, religion, national origin, sex (including pregnancy, childbirth or related medical conditions and lactation), sexual orientation, gender identity or expression, age (40 and over), marital status, disability, genetic information, and protected veteran status or any other characteristic protected by applicable federal, state, or local law. For more information review the Two Six Technologies Equal Employment Opportunity and Affirmative Action Policy and the EEO Poster .

If you are an individual with a disability and would like to request reasonable workplace accommodation for any part of our employment process, please send an email to accommodations@twosixtech.com . Information provided will be kept confidential and used only to the extent required to provide needed reasonable accommodations.

Additionally, please be advised that this business uses E-Verify in its hiring practices.

By submitting the following application, I hereby certify that to the best of my knowledge, the information provided is true and accurate.