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Senior Software Engineer, Level 3 – Embedded – Clearance Require with Security Clearance

Lockheed Martin at a glance

lockheedmartin.com
  • Founded 1995
  • Employees 97000
  • Ticker LMT
LMT 527.96 USD +3.63%
  • Revenue (FY2025) $75.05B
  • Net income $5.02B

Investor research: Yahoo Finance · SEC filings

Source: Wikipedia

Lockheed Martin

Join Lockheed Martin as a Senior Software Engineer, Level 3 in embedded systems, based in Littleton, Arapahoe County. This full-time position offers the opportunity to develop embedded software for advanced space and defense systems, requiring an active security clearance.

About the Role

Lockheed Martin seeks an experienced Senior Software Engineer to design and develop embedded systems software in a security-focused environment. As a Level 3 engineer, you'll architect mission-critical embedded solutions for space applications and defense technologies, taking ownership of complex technical challenges and driving innovation across real-time systems.

What You'll Do

  • Design, develop, and optimize embedded software for space systems and defense platforms
  • Develop firmware, drivers, and real-time operating system components for embedded processors and microcontrollers
  • Perform technical architecture reviews and code quality assessments within collaborative engineering teams
  • Debug, profile, and optimize embedded systems performance, memory usage, and reliability
  • Integrate embedded components with hardware platforms and larger system architectures
  • Create technical documentation and specifications to support long-term product maintainability
  • Mentor junior engineers and contribute to technical standards development

What We're Looking For

  • Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, or equivalent professional experience
  • 7+ years of professional embedded software development experience
  • Advanced proficiency in C and C++ for embedded systems
  • Strong background in real-time operating systems, firmware development, and embedded architecture
  • Experience with embedded processors, microcontrollers, and hardware-software integration
  • Ability to obtain and maintain an active security clearance (US citizenship required)
  • Excellent problem-solving and analytical capabilities
  • Strong communication and teamwork skills

About Lockheed Martin

Lockheed Martin is a global security and aerospace technology company advancing innovations in space systems, defense, and advanced technologies. The company partners with governments and commercial customers to develop next-generation solutions for critical challenges.

How to Apply

To apply, complete your application directly on this page, or you'll be redirected to the employer's application platform to finish submitting there.

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Working in Littleton, Arapahoe County

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Colorado is a landlocked state in the Mountain West subregion of the Western United States. It is one of the Mountain states, and part of the Southwestern United States, sharing the Four Corners region with Arizona, New Mexico, and Utah. It is also bordered by Wyoming to the north, Nebraska to the northeast, Kansas to the east, and Oklahoma to the southeast. Colorado is noted for its landscape of

  • Elevation 1,635m (5,364 ft)

Source: Wikipedia (state)

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