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Keywords: Systems Engineer - Active Security Clearance, Location: Reston, VA

Page: 3

Network Engineer - Expert

an active TS/SCI with Polygraph clearance. Criterion Systems LLC is seeking a Network Engineer to support our Government... and data systems, using best practice security methodologies. Integrate system design with network architecture to best meet...

Location: Herndon, VA
Posted Date: 10 Nov 2025

Mid-Level Full-Stack Software Engineer with TS/SCI - Herndon, VA

Mid-Level Full-Stack Software Engineer Herndon, VA Active TS/SCI clearance and be willing and able to obtain...: Must be a US citizen. Current Top Secret security clearance w/ SCI Eligibility and willing to get a CI poly. Bachelor’s degree...

Company: @Orchard
Location: Herndon, VA
Posted Date: 28 Jan 2026

RF Engineer

. An active TS/SCI security clearance is required for this position. What Desired Skills You'll Bring: Master’s or Doctorate... operations, including system installation and evaluation in austere environments. Security Clearance Requirement: An active Top...

Company: Parsons
Location: Herndon, VA
Posted Date: 28 Jan 2026

Mid-Level DevOps Engineer - TS/SCI

Mid-Level DevOps Engineer Herndon, VA Active TS/SCI clearance and be willing and able to obtain a CI polygraph... in Computer Science, Information Systems or related discipline. Security+ or comparable certification for privileged user access...

Company: @Orchard
Location: Herndon, VA
Posted Date: 28 Jan 2026

Mid-Level Full-Stack Software Engineer with TS/SCI - Herndon, VA

Mid-Level Full-Stack Software Engineer Herndon, VA Active TS/SCI clearance and be willing and able to obtain...: Must be a US citizen. Current Top Secret security clearance w/ SCI Eligibility and willing to get a CI poly. Bachelor’s degree...

Company: @Orchard
Location: Herndon, VA
Posted Date: 28 Jan 2026

Product Management Engineer

Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing... a motivated, career- and customer-oriented Product Management Engineer to join our team in Herndon, VA. In this role...

Company: ManTech
Location: Herndon, VA
Posted Date: 28 Jan 2026

Mid-Level DevOps Engineer - TS/SCI

Mid-Level DevOps Engineer Herndon, VA Active TS/SCI clearance and be willing and able to obtain a CI polygraph... in Computer Science, Information Systems or related discipline. Security+ or comparable certification for privileged user access...

Company: @Orchard
Location: Herndon, VA
Posted Date: 28 Jan 2026

Sr. Specialist, Electrical Engineer (ASIC / FPGA Design) Engineer)

security. Job Title: Sr. Specialist, Electrical Engineer - ASIC/FPGA Senior Design Engineer Job Code: 33298 Job Location... products. Possess active SECRET Clearance. Proficiency in mapping algorithms and standards (Ethernet, TCP/IP, AXI...

Location: Herndon, VA
Posted Date: 28 Jan 2026
Salary: $104500 - 193500 per year

Data Engineer (Azure Synapse ETL/SQL)

and in writing. Must be able to obtain or have an Active Secret (or higher) clearance. Interim clearances acceptable...Responsibilities Peraton is seeking a Data Engineer (Azure Synapse ETL/SQL) to join our team of qualified, diverse...

Company: Peraton
Location: Herndon, VA
Posted Date: 25 Jan 2026
Salary: $86000 - 138000 per year

Senior Windows Client Engineer, Region Services Corporate Infrastructure (RSCI) - VECTOR Team

and currently possess and maintain an active TS/SCI security clearance with polygraph. The position further requires the candidate... Systems Engineer with a deep knowledge of Windows desktop services, including virtual desktops and infrastructure. Our mission...

Company: Amazon
Location: Herndon, VA
Posted Date: 25 Jan 2026

Senior Principal/Staff Cyber Software Engineer (TS/SCI)

MUST HAVE AN ACTIVE TS/SCI WITH ABILITY TO OBTAIN TO PASS A POLY CLEARANCE Software Engineer IV Our client's Space... serialization (JSON, XML). TS/SCI with ability to pass a poly MUST HAVE AN ACTIVE TS/SCI CLEARANCE Desired: Knowledge of API...

Company: SHLD, Inc.
Location: Herndon, VA
Posted Date: 23 Jan 2026

Senior Principal/Staff Cyber Software Engineer CI Poly

MUST HAVE AN ACTIVE TS/SCI WITH CI POLY CLEARANCE Software Engineer IV We are looking for a Software Engineer.../Linux TS/SCI with Poly MUST HAVE AN ACTIVE TS/SCI WITH CI POLY CLEARANCE Desired: Security+ or equivalent...

Company: SHLD, Inc.
Location: Herndon, VA
Posted Date: 23 Jan 2026

Lead Network and Infrastructure Engineer

frameworks (FedRAMP, FISMA, CMMC) Clearance Requirements: Must have active TS/SCI with Polygraph Physical Requirements...Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing...

Company: ManTech
Location: Herndon, VA
Posted Date: 23 Jan 2026

Product Management Engineer

Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing... a motivated, career- and customer-oriented Product Management Engineer to join our team in Herndon, VA. In this role...

Company: ManTech
Location: Herndon, VA
Posted Date: 23 Jan 2026

RF Engineer

. An active Top Secret SCI w/Polygraph security clearance is required for this position. What Desired Skills You'll Bring... Clearance Requirement: An active Top Secret SCI w/Polygraph security clearance is required for this position.​ This position...

Company: Parsons
Location: Herndon, VA
Posted Date: 23 Jan 2026

Senior AI/ML Engineer (TS/SCI)

. Note on Cleared Roles: If this position requires an active U.S. Government security clearance, applicants who... Solutions Engineer to support mission-driven users working on complex national security challenges. In this agile environment...

Location: Herndon, VA
Posted Date: 23 Jan 2026
Salary: $130000 - 200000 per year

Satellite Network Engineer

. Strong understanding of radar phased array T/R module design and modeling. Security Clearance Requirement: An active Top Secret SCI... converters, amplifiers, MMICs, MCMs, and TRMs. Reverse engineer legacy RF hardware systems to develop obsolescence plans...

Company: Parsons
Location: Reston, VA
Posted Date: 22 Jan 2026

Release Train Engineer

Required Qualifications: Active (currently in use) TS/SCI clearance with polygraph or TS/SCI with the ability to successfully pass...Responsibilities The Release Train Engineer will be responsible for the following, but not limited to: Manages...

Company: Peraton
Location: Herndon, VA
Posted Date: 22 Jan 2026

Federal Cybersecurity Engineer

to candidates with active SCI DoD security clearance, or candidate must be clearable per contract requirements Must be local to DC... Assist determining typical sets of controls such as firewalls, security of business systems, data leakage protection systems...

Company: Groundswell
Location: Reston, VA
Posted Date: 22 Jan 2026
Salary: $104429 - 184998 per year

Senior Software Engineer

and documenting APIs with Swagger/OpenAPI. Active security clearance. Benefits Flexible Time Off, Sick, Family & Medical Leave... and maintain a U.S. Government security clearance. Applicants must be U.S. citizens to obtain and maintain a security clearance...

Company: Umbra
Location: Reston, VA
Posted Date: 18 Jan 2026
Salary: $155000 - 185000 per year