Jobs

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• SI

  Technology & Engineering Lead

  8 days ago

  SixGen, Inc. · Sterling, Virginia, United States

  Lead / staff$200K – $250K a yearEngineering

  As SIXGEN continues to grow, so does the complexity of the infrastructure needed to support our teams and programs. We're launching new customer engagements, developing new technologies, and expanding into environments with unique technical, operational, and security…

• SI

  Reverse Engineer

  2 weeks ago

  SixGen, Inc. · Arlington, Virginia, United States

  Full-timeMid levelEngineering

  Position: Reverse Engineer

• SI

  Threat Hunter/Purple Team Operator

  4 weeks ago

  SixGen, Inc. · Remote

  RemoteFull-timeMid level$115K – $140K a yearSecurity

  Position: Mid-Level Threat Hunter / Purple Team Operator; Job Type: Full Time; Location: Remote with travel to customers and test locations as required; Clearance Requirement: Active Top Secret with SCI eligibility; Salary Range; $115-$140K

• SI

  Platform Devops Engineer-TS/SCI & CI POLY

  4 weeks ago

  SixGen, Inc. · Columbia, Maryland, United States

  Full-timeFrom $215K a yearEngineering

  Position: Platform DevOps Engineer; Job Type: Full Time; Location: Columbia, MD; Clearance Requirement: TS/SCI, CI Poly; Salary : Senior $215K SME $240K

• SI

  AI/ML Engineer-TS/SCI & CI POLY

  4 weeks ago

  SixGen, Inc. · Columbia, Maryland, United States

  Full-timeFrom $215.00 an hourData & AI

  Position: AI/ML Engineer; Job Type: Full Time; Location: Columbia, MD; Clearance Requirement: TS/SCI, CI Poly; Salary : Senior $215, SME $240K

• SI

  Reverse Engineer

  8 weeks ago

  SixGen, Inc. · Sterling, Virginia, United States

  Full-timeMid levelEngineering

  Position: Reverse Engineer

• SI

  Red Team Operator and Infrastructure SME

  2 months ago

  SixGen, Inc.

  HybridFull-timeEngineering

  Position:Red Team Operator & Infrastructure SME; Job Type: Full time; Location: Remote , 1x a week onsite in DC; Clearance Requirement: None

• SI

  Senior Malware Analyst (Media, Malware, and Analysis – MMA) MD TS/SCI CI POLY

  3 months ago

  SixGen, Inc. · Ft Meade, Maryland, United States

  SeniorOperations

  Full-time

• SI

  Senior Cost Estimator/Analyst-TS/SCI & Poly

  4 months ago

  SixGen, Inc. · Annapolis Junction, Maryland, United States

  SeniorOperations

  Position: Senior Cost Estimator/Analyst; Location: Annapolis Junction, MD; Clearance Requirement: TS/SCI with Polygraph

• SI

  Senior CNO Developer

  4 months ago

  SixGen, Inc. · Annapolis Junction, Maryland, United States

  SeniorEngineering

  Position: Senior CNO Developer; Location: Annapolis Junction, MD; Clearance Requirement: TS/SCI with CI Poly (or ability to obtain prior to starting)

• SI

  Data Scientist (TS/SCI w/ Poly)

  6 months ago

  SixGen, Inc. · Columbia, Maryland, United States

  Full-time$180K – $220K a yearData & AI

  Position: Senior Data Scientist

• SI

  Lead Modeling and Simulation Engineer

  6 months ago

  SixGen, Inc. · Customer Site, United States

  On-siteFull-timeLead / staffFrom $200K a yearEngineering

  Position: Lead Modeling and Simulation Engineer; Job Type: Full Time; Location: Onsite; Clearance Requirements: TS/SCI & Poly (MUST HAVE); Travel: Up to 10%

• SI

  Senior Software Engineer (TS/SCI w/poly)

  7 months ago

  SixGen, Inc. · Ft. Meade, Maryland, United States

  Full-timeSeniorEngineering

  Position: Software Engineer

• SI

  Systems Engineer (TS/SCI w/ Poly)

  8 months ago

  SixGen, Inc. · Columbia, Maryland, United States

  Full-time$201K – $240K a yearEngineering

  Position: Systems Engineer

• SI

  CNE Developer-TS Required

  12 months ago

  SixGen, Inc. · Columbia, Maryland, United States

  Full-time$225K – $250K a yearEngineering

  Design, develop, test, and maintain software supporting authorized CNE research, capability development, and mission requirements.; Conduct vulnerability research and root-cause analysis of operating systems, applications, services, and network protocols.; Reverse engineer…

• SI

  Senior Red Team Operator

  13 months ago

  SixGen, Inc.

  HybridFull-timeSenior$100K – $151K a yearTrades & logistics

  Position: Senior Red Team Operator; Job Type: Full Time; Location: Hybrid (onsite 1/x week) -Washington D.C.; Clearance Requirements: None; Travel: Up to 10%

• SI

  Full Stack Software Engineer (TS/SCI w/ Poly)

  17 months ago

  SixGen, Inc. · Fort Meade, Maryland, United States

  On-siteFull-time$90K – $185K a yearEngineering

  SIXGEN supports missions by serving government and commercial organizations as they overcome global cybersecurity challenges. In this position, you’ll provide meaningful support to our customer’s missions and operations. You’ll work alongside a team of highly skilled operators…

• SI

  Red Team Operator

  29 months ago

  SixGen, Inc. · Washington, District of Columbia, United States

  Full-timeMid level$115K – $120K a yearTrades & logistics

  Position: Red Team Operator; Job Type: Full Time; Location: On-site 1x/week in Washington DC; Clearance Requirements: None, but Public Trust preferred; Travel: None

• SI

  Senior Web Application Penetration Tester

  32 months ago

  SixGen, Inc. · Remote

  RemoteFull-timeSenior$125K – $165K a yearSecurity

  Salary:$125-$165K

Updated 07 Nov 2026 10:21 UTC from the OptiTalent job library.