Information Technology - Engineer Software

Job#: 3021131

Job Description:

Telecommute: No

Pay Starting at $70/HR

Work Location: On‑site in a SCIF (Redondo Beach, CA)

Clearance: Active SSBI required; eligibility for SCI before start

Work Schedule: 1st Shift (9/80 schedule)

Travel: Up to 10%

A leading national security and defense contractor is seeking an Intermediate to Senior Software Engineer to join a high‑performance engineering team supporting complex ground systems, mission operations, and next‑generation technology programs. This role is ideal for someone energized by challenging technical problems, large‑scale systems, and mission‑critical software development.

You will work within a large, multi‑disciplinary software organization responsible for both new capability development and sustainment of existing operational systems across multiple domestic and international sites. This position is on‑site within a Sensitive Compartmented Information Facility (SCIF) and supports programs that directly contribute to national security objectives.

• Develop C++ applications within an agile team environment using Red Hat Enterprise Linux (RHEL) virtual machines, servers, and workstation environments.
• Design, implement, and unit test new software capabilities derived from algorithmic and mathematical requirements.
• Diagnose, troubleshoot, and resolve software defects, delivering high‑quality updates based on discrepancy reports.
• Collaborate closely with senior engineers, subsystem leads, and subject‑matter experts across multiple software segments.

• Bachelor’s degree in a STEM field with 5–8 years of experience,
• OR a Master’s with 3–6 years
  ,
• OR a PhD with 1–4 years
  .
• (An additional four years of relevant software experience may substitute for a degree.)
• Active SSBI at the time of application and ability to obtain SCI before starting.
• Strong Object‑Oriented Programming skills with proficiency in C++.
• Experience working with Red Hat Enterprise Linux
  .
• Demonstrated analytical, troubleshooting, and decision‑making abilities.
• Must be a U.S. citizen
  .

• Experience with Dev Sec Ops  and automated testing frameworks.
• Additional programming/scripting experience in C, Java, Python, or Perl
  .
• Strong background in mathematics and algorithm development.
• Familiarity with agile development practices and participation in Scrum teams.
• Experience using tools such as Jira, Confluence, Bitbucket, Bamboo
  , and Git‑based workflows.
• Active SCI clearance.

EEO Employer

Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law.

Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Employee Services Department at [email protected] or .