Job#: 3054652 Job Description: Systems Engineer (Level 3/4)
St. Charles, MOPosition Overview
Seeking Systems Engineers to support advanced aerospace and defense programs. This role will work across multidisciplinary teams to develop, manage, and verify system requirements for complex weapons and mission systems throughout the product lifecycle.
Candidates from a variety of engineering backgrounds are encouraged to apply, including systems, aerospace, electrical, mechanical, avionics, controls, and related disciplines.
Responsibilities
- Develop and manage system requirements from customer needs through subsystem allocation.
- Support requirements decomposition, traceability, verification, and validation activities.
- Collaborate with mechanical, electrical, software, manufacturing, test, and program teams.
- Support systems integration, technical reviews, and engineering trade studies.
- Participate in system architecture, interface definition, and cross-functional coordination efforts.
- Contribute to model-based systems engineering (MBSE) and digital engineering activities as needed.
- Assist with technical documentation and issue resolution throughout the development lifecycle.
Required Qualifications
- Bachelor's degree in Engineering, Physics, Mathematics, Computer Science, or a related technical field.
- 3+ years of engineering experience.
- Experience with requirements development, systems integration, verification, validation, or related systems engineering activities.
- Strong ability to work across multiple engineering disciplines.
- Ability to obtain a U.S. Security Clearance.
Preferred Qualifications
- 7+ years of experience for senior-level consideration.
- Experience supporting aerospace, defense, missile, weapons, avionics, flight controls, or sensor systems.
- Familiarity with requirements management tools such as DOORS/DORS.
- Working knowledge of Cameo, SysML, or other MBSE tools.
- Experience with requirements verification and validation.
- Active Secret Clearance preferred but not required.
Ideal Candidate
Candidates may come from systems, aerospace, electrical, mechanical, avionics, controls, or related engineering backgrounds. Individuals who have performed requirements, integration, architecture, verification, or cross-functional technical coordination work are encouraged to apply, even if their previous title was not Systems Engineer.
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 ClearlyRateds 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. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at
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.
Everforth 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. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.
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