Demo

Software Systems Engineer

Apex Systems
Seal Beach, CA Full Time
POSTED ON 5/12/2026
AVAILABLE BEFORE 6/11/2026
Job#: 3033329

Job Description:
Software Engineer-Systems 5

Location: Seal Beach, California (Onsite)

Employment Type: Contract

Role Overview

We are seeking a Software Systems Engineer to join a team focused on leading a Full Stack Java software development team. This position will focus on leading Mission Management and Mission Planning Java software development, working alongside a cross-functional team to develop solutions that allow stakeholders to advance the mission. As a member of the software team, you will be involved in the entire product development lifecycle, from conceptualization and development to the maintenance and support of the delivered system.

Key Responsibilities
  • Lead the planning of software development tasks including detailed software design, coding, and unit/integration/functional/system testing of customer desired features.
  • Partner with appropriate stakeholders to inform system definition and review translation of system-level requirements into software requirements and models.
  • Review completion of software system-level analyses to identify risk, issues and opportunities; lead integration and deployment of mitigation actions.
  • Lead code reviews to ensure alignment to requirements and standards.
  • Lead monitoring and reviewing test completion, verification processes, and issue resolution for software systems.
  • Lead review of products and processes for alignment with project plans and industry standards by tracking and evaluating team performance.
Required Qualifications
  • 5 years of experience in foundational Computer Science knowledge and object-oriented design and software patterns.
  • Experience in Java/C /Python object-oriented programming on full stack software projects.
  • Experience leading projects or individuals in software development lifecycle tasks.
Preferred Qualifications
  • Bachelor of Science degree from an accredited course of study in engineering, engineering technology, chemistry, physics, mathematics, data science, or computer science.
  • Experience with one or more of the following: HTML, CSS, JavaScript, JS frameworks (REACT, Open Layers, etc.), Spring Framework, Hibernate, RDBMS, noSQL, REST/Open API.
  • Experience with Agile or SAFe practices, including daily standup, User Stories, Sprints, and Release Planning.
  • Familiarity with practices such as test-driven development (TDD), agile software development, DevSecOps, and Continuous Integration and Continuous Deployment (CI/CD) management.
  • Experience using CI/CD tools such as Jenkins or GitLab CI to automate build, test, and deployment processes.
  • Demonstrated experience with middleware technologies, particularly Java Message Service (JMS) and WebLogic.
  • Experience using dependency management and automation services (e.g., Ivy, Maven, Gradle, Git, Jenkins).
  • Experience with RDBMS (SQL Server, Oracle, MySQL) and NoSQL (MongoDB) data systems.
  • Experience in writing and executing test cases, including unit, integration, and system testing.
  • Experience with systems engineering or software development on space-based or ground-based systems.

PLEASE NOTE: Candidates must be able to obtain and/or maintain a Department of Defense Top Secret clearance as a condition and continuation of employment.

We are an equal opportunity employer and welcome applications from all qualified candidates regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.

Apex uses a virtual recruiter as part of the application process. Click for more details.

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 Benefits Department at or .

Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico. Everforth Apex uses a virtual recruiter as part of the application process. Click for more details.

Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6 months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Everforth Apex team member can provide.

Salary.com Estimation for Software Systems Engineer in Seal Beach, CA
$111,668 to $135,244
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