Senior Systems Engineer

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.

Two Six Technologies is growing, and we are looking for a Senior System Engineer to join our Corporate Security team
. You will be responsible for engineering
, administering and maintaining the classified network. The ideal candidate is one who is eager to learn and adapt to new challenges in a fast‑paced and growing environment, has great attention to detail, strong analytical and critical problem‑solving abilities, and excellent communication skills.

The environments you will work in include Windows 11, Active Directory/Group Policy, Red Hat Enterprise Linux (RHEL), VMWare vSphere / ESXi, and others. The position will be based out of our Herndon, VA office with potential local travel to our other sites.

• Engineering and maintaining networks for both classified and unclassified use
• Install, configure, administer and maintain Windows and Linux servers and workstations
• Administer user accounts and access control within information systems to include creation of user accounts, assigning permissions to accounts, and enforcing security access policies to ensure compliance
• Troubleshooting and resolving technical issues
• Perform system backups and data recovery
• On‑call support for outages as needed

• 5+ years of experience supporting a IC community classified network (like JWICS) as a System Engineer, Network Engineer or Network Administrator
• Bachelor’s degree in Cybersecurity, Computer Science, Information Security, or a related degree; or advanced professional industry certifications and additional experience can be substituted
• 8140 certification such as Security+, GCISP, GSEC, SSCP, CASP+, CISM, CISSP, CCNA, etc.
• Solid experience supporting Windows servers or workstations
• Experience working with routers, switches and firewalls
• Working knowledge of tools such as Service Now and Talon
• Working knowledge of the Linux environment
• Working knowledge of government regulations such as the DCSA Assessment and Authorization Process Manual (DAAPM), NIST SP 800-53, NIST SP 800-171, etc.
• Basic understanding of security compliance matrix

• Experience building a classified network
• Experience setting up network access storage

• Active TS/SCI w/Poly

Two Six Technologies is committed to providing competitive and comprehensive compensation packages that reflect the value we place on our employees and their contributions. Our offerings include medical, dental, and vision insurance, life and disability insurance, retirement benefits, paid leave, tuition assistance and professional development.

$150,000 - $200,000 USD

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 Aff…

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  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.