Top Secret / SCI Clearance Jobs in Pennsylvania

Top Secret/SCI Pennsylvania

Viewing 1 - 20 of 139

Top Secret / SCI Jobs in Pennsylvania requiring security clearance

Cyber Operations Specialist III

New
ALTA IT Services
Apply today! Be one of the first candidates to apply for maximum exposure.
Springfield, PA(On-Site/Office)
Updated Today
5+ yrs exp
TS/SCI

Job Title: Cyber Operations Specialist III Location: Springfield, Virginia - Onsite Type: Contract To Hire Clearance: TS/SCI Hours: Monday – Friday 6 AM – 2 PM, 2 PM-10 PM, 10 PM-6 AM Contact: Cdinno...

user avatar

Dev Sec Ops Engineer - Early Career

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

Job Number 698638BR 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...

user avatar

2026 Full-time - Java Software Engineer I - Onsite (PA)

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

Date Posted:2025-12-02Country: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. ...

user avatar

Sr. Prin. SW Section Lead/Product Owner (On-site)

New
RTX
Apply today! Be one of the first candidates to apply for maximum exposure.
State College, PA(On-Site/Office)
Updated Today
TS/SCI
Not Specified

Date Posted:2025-12-01Country: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. ...

user avatar

Site Reliability Engineer

New
General Dynamics Mission Systems
Apply today! Be one of the first candidates to apply for maximum exposure.
Pittsburgh, PA(On-Site/Office)
Updated Today
TS/SCI
Not Specified

Basic QualificationsBachelor's degree in Computer Science, a related field or equivalent experience is required plus a minimum of 5 years of relevant experience; or Master's degree plus 3 years of rel...

user avatar

Java Software Engineer III- Space Mission Applications

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

Job Number 698997BR 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...

user avatar

Java Software Engineer III

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

Job Number 691465BR Description:Combat Effectiveness Core (CEC) team is building a space combat simulator to model space conflicts. What forces will be needed to win? How can available resources best...

user avatar

Senior Software Algorithm Engineer (TS/SCI) {S}

New
ARKA Group LP
Apply today! Be one of the first candidates to apply for maximum exposure.
King Of Prussia, PA(On-Site/Office)
Updated 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...

user avatar

Senior Software Engineer, Level 3

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

Job Number 711802BR 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...

user avatar

Senior Software Engineer, Level 3

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

Job Number 711801BR 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...

user avatar

Systems Engineer Senior (Clearance Required)

Lockheed Martin
King Of Prussia, PA(On-Site/Office)
Updated Today
TS/SCI
Not Specified

Job Number 711673BR Description:The coolest jobs on this planet... or any other... are with Lockheed Martin Space OVERVIEW:Space is a critical domain, connecting our technologies, our security and ou...

user avatar

Systems Engineer Staff- Clearance Required

Lockheed Martin
King Of Prussia, PA(On-Site/Office)
Updated Today
TS/SCI
Not Specified

Job Number 711659BR 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...

user avatar

Systems Engineer (Level 2), RF Systems

Lockheed Martin
King Of Prussia, PA(On-Site/Office)
Updated Today
TS/SCI
Not Specified

Job Number 707366BR Description:The coolest jobs on this planet... or any other... are with Lockheed Martin Space OVERVIEW: At the dawn of a new space age, Lockheed Martin is a pioneer, partner, inno...

user avatar

Signal Processing Engineer - Modeling and Simulation

Lockheed Martin
King Of Prussia, PA(On-Site/Office)
Updated Today
TS/SCI
Not Specified

Job Number 707649BR 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 ...

user avatar

Staff Data Engineer (TS/SCI with Full Scope Poly) {S}

ARKA Group LP
King Of Prussia, PA(On-Site/Office)
Updated Today
TS/SCI
Full Scope 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...

user avatar

Systems Engineer Staff, Level 4 - Clearance Required

Lockheed Martin
King Of Prussia, PA(On-Site/Office)
Updated Today
TS/SCI
Not Specified

Job Number 711596BR 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...

user avatar

Systems Engineer (Level 2) - Clearance Required

Lockheed Martin
King Of Prussia, PA(On-Site/Office)
Updated 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...

user avatar

Senior Systems Engineer, Level 3 - Clearance Required

Lockheed Martin
King Of Prussia, PA(On-Site/Office)
Updated Today
TS/SCI
Not Specified

Job Number 711335BR 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 ...

user avatar

Software Engineer, Level 2

Lockheed Martin
King Of Prussia, PA(On-Site/Office)
Updated Today
TS/SCI
Not Specified

Job Number 711361BR 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...

user avatar

Systems Engineering Associate - Clearance Required

Lockheed Martin
King Of Prussia, PA(On-Site/Office)
Updated Today
TS/SCI
Not Specified

Job Number 711334BR 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 ...

user avatar