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Software Engineer, C++ - Top Secret Clearance

Job in Hawthorne, Los Angeles County, California, 90250, USA
Listing for: SpaceX
Full Time position
Listed on 2026-02-06
Job specializations:
  • Software Development
    Software Engineer, DevOps, Cloud Engineer - Software, Full Stack Developer
Job Description & How to Apply Below

Space

X was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today Space

X is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.

Software Engineer, C++ - Top Secret Clearance

As a Software Engineer in Special Programs, you will design, develop, and test key aspects of an in‑house solution for analysis, simulation, and prototyping of software in support of all Space

X flight systems. You will have full ownership of new features in a scalable high‑performance application used to control and test flight systems. This is a high‑impact role where you will work across the engineering groups to build a high‑assurance system that accelerates the development and demonstration of cutting‑edge software and hardware.

Aerospace experience is not required to be successful here - rather we look for smart, motivated software engineers who enjoy taking on complex challenges, work well in dynamic environments, and care about software best practices. Our software is critical to future mission successes, and we have no shortage of interesting challenges that require innovative, cutting‑edge solutions.

Responsibilities
  • Contribute toall aspects of software engineering and product development producing highly reliable software across all areas of the application suite
  • Develop prototypes to prove out key design concepts and quantify technical constraints
  • Develop modules for real‑time data streaming of flight systems data
  • Contribute to test automation processes and CI/CD infrastructure
  • Maintain highest standards of excellence, never settling for the status quo
Basic Qualifications
  • Bachelor's degree in computer science, math, or engineering
  • 1+ years of experience in software development, programming in modern C++
Preferred Skills and Experience
  • Strong software design and development skills
  • Experience with data streaming and real‑time data processing is a plus
  • Experience with data serialization formats such as JSON, YAML, XML and Protobuf
  • Experience in software development delivering robust and scalable software applications
  • Experience with Python, Java or Go
  • Experience with containerized solutions such as Docker and Kubernetes
  • Experience with database systems such as Postgres, MySql or Oracle.
  • Strong skills in debugging, performance optimization, data throughput analysis and unit testing
  • Strong creative and innovative problem‑solving skills
  • Ability to work effectively in a dynamic environment by quickly adapting to changing needs and requirements
  • Active Top Secret, Top Secret SCI, or DOE Level Q clearance, or the ability and willingness to obtain one
Additional Requirements
  • This position requires successfully obtaining and maintaining a Top Secret Security Clearance as a condition of employment. While the clearance may not be immediately necessary upon hire, we encourage you to initiate the application process promptly upon accepting this offer. Your ability to secure the necessary clearance is essential for fulfilling key responsibilities of the role. Should you be unable to obtain it, Space

    X reserves the right to modify or terminate your employment to align with operational needs.
  • Note that an active clearance may provide the opportunity for you to work on sensitive Space

    X missions. If so, you will be subject to pre‑employment drug and random drug and alcohol testing
  • Willing to work extended hours and weekends when needed
Compensation and Benefits

Pay range:

  • Software Engineer/Level I: $ - $ per year
  • Software Engineer/Level II: $ - $ per year

Your actual level and base salary will be determined on a case‑by‑case basis and may vary based on the following considerations: job‑related knowledge and skills, education, and experience. Those with an active clearance will receive a 10% differential, up to an additional $15,000 annually, once officially briefed into a classified program.

Base salary is just one part of your total rewards package  may also be eligible for long‑term incentives, in the form of company stock, stock options, or long‑term cash awards, as well as potential discretionary bonuses and…

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