Top Secret / SCI Clearance Jobs in Pennsylvania

Top Secret/SCI Pennsylvania

Viewing 1 - 20 of 166

Top Secret / SCI Jobs in Pennsylvania requiring security clearance

AI/ML Engineer (TS/SCI with CI Poly) {S}

New
ARKA Group LP
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King Of Prussia, PA(On-Site/Office)
Posted today
TS/SCI
CI Polygraph

ARKA Group L.P. ("ARKA") is an advanced technologies company serving the U.S. military, intelligence community, and commercial space industry delivering next-generation solutions to support the nation...

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Principal Software Engineer (TS/SCI) {S}

New
ARKA Group LP
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King Of Prussia, PA(On-Site/Office)
Posted today
TS/SCI
CI Polygraph

ARKA Group L.P. ("ARKA") is an advanced technologies company serving the U.S. military, intelligence community, and commercial space industry delivering next-generation solutions to support the nation...

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Site Security Specialist

New
Leidos
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Liberty Township, PA(On-Site/Office)
Posted today
TS/SCI
Not Specified

R-00173248Description The Security Engineering Program (SEP) under Homeland and Force Protection at Leidos currently has an opening within the Professional Services Support (PSS) Program for a Si...

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Principal System Engineer - ENG05 - Cleared On-Site

New
Steven Douglas Associates
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Richardson, TX(On-Site/Office)
State College, PA(On-Site/Office)
Posted today
5+ yrs exp
TS/SCI

We have an exciting opportunity for a Principal System Engineer to join our team. The role is supporting one of our premier programs in the ASDS business unit. In this role you will support advanced, ...

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Principal Java Software Engineer (on-site)

New
RTX
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State College, PA(On-Site/Office)
Posted today
TS/SCI
Polygraph

Date Posted:2026-02-03Country:United States of AmericaLocation:US-PA-STATE COLLEGE-5A ~ 302 Science Park Rd ~ BLDG 5APosition Role Type:Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirem...

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Principal Signals Software Engineer (Onsite)

New
RTX
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State College, PA(On-Site/Office)
Posted today
TS/SCI
Polygraph

Date Posted:2026-02-03Country:United States of AmericaLocation:US-PA-STATE COLLEGE-5A ~ 302 Science Park Rd ~ BLDG 5APosition Role Type:Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirem...

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Senior Software Infrastructure Engineer (Onsite)

New
RTX
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State College, PA(On-Site/Office)
Posted today
TS/SCI
Polygraph

Date Posted:2026-02-03Country:United States of AmericaLocation:US-PA-STATE COLLEGE-5A ~ 302 Science Park Rd ~ BLDG 5APosition Role Type:Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirem...

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Senior Java Software Engineer (Onsite)

New
RTX
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State College, PA(On-Site/Office)
Posted today
TS/SCI
Polygraph

Date Posted:2026-02-03Country:United States of AmericaLocation:US-PA-STATE COLLEGE-5A ~ 302 Science Park Rd ~ BLDG 5APosition Role Type:Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirem...

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Senior Java/C++ Software Engineer (Onsite)

New
RTX
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State College, PA(On-Site/Office)
Posted today
TS/SCI
Polygraph

Date Posted:2026-01-30Country:United States of AmericaLocation:US-PA-STATE COLLEGE-5A ~ 302 Science Park Rd ~ BLDG 5APosition Role Type:Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirem...

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Sr. Java/DevOps Software Engineer (on-site)

New
RTX
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State College, PA(On-Site/Office)
Posted today
TS/SCI
Polygraph

Date Posted:2026-02-05Country:United States of AmericaLocation:US-PA-STATE COLLEGE-5A ~ 302 Science Park Rd ~ BLDG 5APosition Role Type:Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirem...

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Senior DevSecOps Engineer

New
Lockheed Martin
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King Of Prussia, PA(On-Site/Office)
Posted 2 days ago
TS/SCI
Not Specified

Job Number 716890BR Description:WHO WE ARELockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future ...

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DevSecOps Engineer Staff

New
Lockheed Martin
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King Of Prussia, PA(On-Site/Office)
Posted 2 days ago
TS/SCI
Not Specified

Job Number 716892BR Description:WHO WE ARELockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future ...

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DevSecOps Engineer, Senior - Active TS/SCI Clearance to Start

New
Lockheed Martin
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King Of Prussia, PA(On-Site/Office)
Posted 2 days ago
TS/SCI
Polygraph

Job Number 717368BR Description:The coolest jobs on this planet... or any other... are with Lockheed Martin Space.At the dawn of a new space age, Lockheed Martin is a pioneer, partner, innovator and ...

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Senior DevSecOps Engineer

New
Lockheed Martin
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King Of Prussia, PA(On-Site/Office)
Posted 2 days ago
TS/SCI
Not Specified

Job Number 716866BR Description:WHO WE ARELockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future ...

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Cyber Security Engineer

New
Lockheed Martin
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King Of Prussia, PA(On-Site/Office)
Posted 2 days ago
TS/SCI
Not Specified

Job Number 716737BR Description:By bringing together people that use their passion for purposeful innovation, at Lockheed Martin we keep people safe and solve the world's most complex challenges. Our...

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Cyber Security Engineer Lead

New
Lockheed Martin
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King Of Prussia, PA(On-Site/Office)
Posted 2 days ago
TS/SCI
Not Specified

Job Number 716735BR Description:By bringing together people that use their passion for purposeful innovation, at Lockheed Martin we keep people safe and solve the world's most complex challenges. Our...

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Program Quality Engineering Asc. Manager

New
Lockheed Martin
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King Of Prussia, PA(On-Site/Office)
Posted 3 days ago
TS/SCI
Not Specified

Job Number 717228BR Description:The candidate will serve as the Quality functional lead for programs within the Enterprise Mission Command & Control (EMC2) and Ground CEW programs within the Radars, ...

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Linux Systems Administrator, Sr / TS/SCI Poly / Onsite: KoP, PA

New
Lockheed Martin
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King Of Prussia, PA(On-Site/Office)
Posted 3 days ago
TS/SCI
Polygraph

Job Number 717180BR Description:Our employees are the core of everything we do, and they are helping the future arrive. As a leading technology innovation company, our team of over 100,000 employees ...

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Sustainment Engineer

New
Lockheed Martin
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King Of Prussia, PA(On-Site/Office)
Posted 3 days ago
TS/SCI
Not Specified

Job Number 716625BR Description:WHO WE ARELockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future ...

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Software Engineer - Early Career

New
Lockheed Martin
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King Of Prussia, PA(On-Site/Office)
Posted 3 days ago
TS/SCI
Not Specified

Job Number 698867BR Description:By bringing together people that use their passion for purposeful innovation, at Lockheed Martin we keep people safe and solve the world's most complex challenges. Our...

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