Eclss System Engineer Jobs (NOW HIRING)

Leidos has an opening for a Senior Flight Software and Avionics Engineer to support the Cargo Mission Contract team in Houston, Texas. The engineer will provide space flight software and avionics support for newly developed hardware in support of ISS, HLS, moonbase, and commercial space programs.

• Undertaking development of end-to-end avionics system architecture
• Developing schematics for power distribution, communication lines, and central processing system or embedded system, related peripherals (sensors, actuators, switches)
• Work with a team to design, develop, and test embedded flight software
• Design and build functional, efficient, dependable, secure, and maintainable software
• Collaborate with hardware engineers on board-level firmware and circuit designs
• Execute test plans and procedures in Hardware-in-the-Loop testbeds and support test automation platforms to facilitate CI/CD initiatives.
• Collaborate effectively with other engineers and technicians (electrical, mechanical, embedded) to integrate hardware simulation and fault injection solutions into real-time software
• Support milestone reviews such as PDR, CDR, and SDR
• Give and receive productive feedback during collaboration and in design and code reviews
• Perform other duties as assigned.

• Bachelor’s degree in computer science and electrical electronics engineering or related field.
• 5+ years of experience with embedded systems programming (e.g. microcontrollers, single board computer) in Linux and real-time software environments. C/C++ proficiency mandatory
• Experience with development and testing of LabView Applications to build automated test, measurement, and control systems
• Capable of identifying and solving complex problems, building solutions with little to no supervision or direction
• Experience with spaceflight or other safety critical systems
• Experience working with operating systems, file systems, and bootloaders
• Experience with Bitbucket or Gitlab and Jenkins software tools, and Agile software development processes
• Familiar with containerization supporting Continuous Development/Continuous Integration pipelines on Linux Systems

• Master’s degree in computer science and electrical electronics engineering or related fields
• 2+ years of experience with spaceflight projects (payloads, satellites, spacecrafts)
• Experience with developing Environmental Control and Life Support System (ECLSS) systems and subsystems
• Electrical PCB design, schematics development, analysis, routing and testing

Must be able to obtain a Public Trust Clearance; due to contract requirements, U.S. Citizenship or U.S. Permanent residency is required.

July 30, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range $107,900.00 - $195,050.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers.

Employment benefits include:

• competitive compensation
• Health and Wellness programs
• Income Protection
• Paid Leave and Retirement

More details are available at www.leidos.com/careers/pay-benefits.

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.