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Top Secret / SCI Clearance Jobs in Pennsylvania

Top Secret/SCI Pennsylvania

Viewing 1 - 20 of 145

Top Secret / SCI Jobs in Pennsylvania requiring security clearance

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Senior Reverse Engineer Researcher

New
Software Engineering Institute
Apply today! Be one of the first candidates to apply for maximum exposure.
Pittsburgh, PA(On-Site/Office)
Posted today
TS/SCI
Not Specified

About the roleThe SEI helps advance software engineering principles and practices and serves as a national resource in software engineering, computer security, and process improvement. The SEI works c...

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Associate Reverse Engineer Researcher

New
Software Engineering Institute
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Pittsburgh, PA(On-Site/Office)
Posted today
TS/SCI
Not Specified

About the roleThe SEI helps advance software engineering principles and practices and serves as a national resource in software engineering, computer security, and process improvement. The SEI works c...

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Software Engineer Senior

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

Job Number 715223BR Description:Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities...

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Full Stack Infrastructure Engineer Staff - TS/SCI Required

New
Lockheed Martin
Apply today! Be one of the first candidates to apply for maximum exposure.
King Of Prussia, PA(On-Site/Office)
Posted today
TS/SCI
Not Specified

Job Number 715110BR Description:What We're Doing:Lockheed Martin's Radars, Electronic Warfare & Acoustic Systems (REAS) market segment within the RMS Sensors, Effectors, Mission Systems (SEMS) line o...

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Systems Engineer (Level 2) - Top Secret Clearance Required

New
Lockheed Martin
Apply today! Be one of the first candidates to apply for maximum exposure.
King Of Prussia, PA(On-Site/Office)
Posted today
TS/SCI
Not Specified

Job Number 711595BR 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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Ground Software Engineer

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

Job Number 707174BR 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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Space Mission Analyst/Operations Research IV

New
Lockheed Martin
Apply today! Be one of the first candidates to apply for maximum exposure.
King Of Prussia, PA(On-Site/Office)
Posted today
TS/SCI
Not Specified

Job Number 694828BR Description: Protecting what matters most is the mission that matters most. Space is a critical domain, connecting our technologies, our security and our humanity. While others vi...

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Senior Software Infrastructure Engineer (Onsite)

New
RTX
Apply today! Be one of the first candidates to apply for maximum exposure.
State College, PA(On-Site/Office)
Posted 1 day ago
TS/SCI
Polygraph

Date Posted:2025-08-29Country:United States of AmericaLocation:PA601: 302 Science Park Road, Bldg 5A 302 Science Park Road Building 5A, State College, PA, 16803-2214 USAPosition Role Type:Onsite U.S. ...

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Systems Engineer II

New
RTX
Apply today! Be one of the first candidates to apply for maximum exposure.
State College, PA(On-Site/Office)
Posted 1 day ago
TS/SCI
Polygraph

Date Posted:2025-11-20Country:United States of AmericaLocation:PA601: 302 Science Park Road, Bldg 5A 302 Science Park Road Building 5A, State College, PA, 16803-2214 USAPosition Role Type:Onsite U.S. ...

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Senior Java Software Engineer (Onsite)

New
RTX
Apply today! Be one of the first candidates to apply for maximum exposure.
State College, PA(On-Site/Office)
Posted 1 day ago
TS/SCI
Polygraph

Date Posted:2025-08-29Country:United States of AmericaLocation:PA601: 302 Science Park Road, Bldg 5A 302 Science Park Road Building 5A, State College, PA, 16803-2214 USAPosition Role Type:Onsite U.S. ...

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Principal Signals Software Engineer (Onsite)

New
RTX
Apply today! Be one of the first candidates to apply for maximum exposure.
State College, PA(On-Site/Office)
Posted 1 day ago
TS/SCI
Polygraph

Date Posted:2025-08-29Country:United States of AmericaLocation:PA601: 302 Science Park Road, Bldg 5A 302 Science Park Road Building 5A, State College, PA, 16803-2214 USAPosition Role Type:Onsite U.S. ...

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Principal Java Software Engineer (Onsite)

New
RTX
Apply today! Be one of the first candidates to apply for maximum exposure.
State College, PA(On-Site/Office)
Posted 1 day ago
TS/SCI
Polygraph

Date Posted:2025-08-29Country:United States of AmericaLocation:PA601: 302 Science Park Road, Bldg 5A 302 Science Park Road Building 5A, State College, PA, 16803-2214 USAPosition Role Type:Onsite U.S. ...

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Senior AI Security Researcher

New
Software Engineering Institute
Apply today! Be one of the first candidates to apply for maximum exposure.
Pittsburgh, PA(On-Site/Office)
Posted 1 day ago
TS/SCI
Not Specified

Are you a cybersecurity and/or AI researcher who enjoys a challenge? Are you excited about pioneering new research areas that will impact academia, industry, and national security? If so, we want you ...

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Contractor Special Security Officer

New
Software Engineering Institute
Apply today! Be one of the first candidates to apply for maximum exposure.
Pittsburgh, PA(On-Site/Office)
Posted 1 day ago
TS/SCI
Not Specified

This is a temporary position that will last for 1 year, with the possibility of extending. What We Do:The SEI helps advance software engineering principles and practices and serves as a national resou...

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2026 Intern - Software Fellow Engineer Intern - Onsite (PA)

New
RTX
Apply today! Be one of the first candidates to apply for maximum exposure.
State College, PA(On-Site/Office)
Posted 2 days ago
TS/SCI
Polygraph

Date Posted:2026-01-14Country:United States of AmericaLocation:PA602: 302 Science Park Road, Bldg 5C 302 Science Park Road Building 5C, State College, PA, 16803-2214 USAPosition Role Type:Onsite U.S. ...

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Senior Software Engineer - Top Secret Clearance

New
Lockheed Martin
Apply today! Be one of the first candidates to apply for maximum exposure.
King Of Prussia, PA(On-Site/Office)
Posted 2 days ago
TS/SCI
Not Specified

Job Number 714844BR Description:Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities...

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Financial Analyst (TS clearance required)

New
Lockheed Martin
Apply today! Be one of the first candidates to apply for maximum exposure.
King Of Prussia, PA(On-Site/Office)
Posted 2 days ago
TS/SCI
Not Specified

Job Number 714805BR Description:Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities...

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Software Engineer, Level 2 - Top Secret Clearance Required

New
Lockheed Martin
Apply today! Be one of the first candidates to apply for maximum exposure.
King Of Prussia, PA(On-Site/Office)
Posted 2 days ago
TS/SCI
Not Specified

Job Number 702672BR Description:Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities...

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Software Engineer - TS/SCI Clearance Required

New
Lockheed Martin
Apply today! Be one of the first candidates to apply for maximum exposure.
King Of Prussia, PA(On-Site/Office)
Posted 2 days ago
TS/SCI
Not Specified

Job Number 698992BR Description:Job 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, partn...

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Data Scientist

New
Software Engineering Institute
Apply today! Be one of the first candidates to apply for maximum exposure.
Pittsburgh, PA(On-Site/Office)
Posted 3 days ago
TS/SCI
Not Specified

What We Do:Data Scientists at the SEI use advanced statistics, data analytics, machine learning, and artificial intelligence to help our government and industry clients research and solve cybersecurit...

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