Senior System Engineer

SOC LLC; Belleville (IL); On-site; USD 120,000 - 170,000; Full time

Job summary

SOC LLC seeks a Senior Systems Engineer for a contract-to-hire role onsite in Belleville, Illinois. Must have an active Secret clearance. The role focuses on senior systems engineering, RMF accreditation, Agile coordination, and governance in DoD environments.

The candidate will support systems engineering and testing branches, ensuring secure, accredited, and well-governed systems aligned with DoD and program requirements.

Qualifications

• Bachelor’s degree in systems engineering, computer science, or related field.
• Experience with DoD IT systems, RMF accreditation, and security governance.

Responsibilities

• Perform systems engineering analysis for complex DoD information systems.
• Develop and maintain system architectures in DoDAF or approved formats.
• Review contractor deliverables and improve system performance, security.
• Support RMF accreditation activities and system authorization.
• Coordinate with security engineers and government stakeholders on issues.
• Lead or support Agile governance forums (CCBs, ST/ARTs, TIMs).

Skills

Systems engineering

RMF accreditation

Agile requirements

Security governance

Written communication

Education

Bachelor's degree

Tools

DoDAF

DISA

Job description

Senior Systems Engineer is needed for a contract to hire opportunity with SOC's client onsite in Belleville, Illinois

**Must Have Active Secret Clearance

Job Description:

The Systems Engineer IV provides senior-level technical and systems engineering with a primary focus on systems engineering, cybersecurity/RMF accreditation, Agile requirements coordination, and governance support. This role supports both the Systems Engineering and Testing Branch and the Chief Scientist function, ensuring systems are engineered, secured, accredited, and managed in alignment with DoD, USTRANSCOM, and program-level requirements.

Key Responsibilities

Systems Engineering & Technical Oversight

• Perform systems engineering analysis for complex DoD information systems, including evaluation, verification, and validation of existing and emerging solutions.
• Develop, review, and maintain system architectures and engineering artifacts in DoDAF or other government-approved formats.
• Conduct technical reviews of contractor-produced deliverables and provide recommendations to improve system performance, reliability, and security.
• Identify technical risks and develop mitigation strategies across system lifecycle phases.
• Support RMF and system authorization activities, including development, review, and maintenance of accreditation documentation.
• Provide recommendations on security best practices to support system authorization, audits, technical assessments, and sustainment.
• Coordinate with security engineers, developers, DISA, and government stakeholders to resolve security and compliance issues.
• Review and support Agile requirements, ensuring traceability and alignment with system architecture and security requirements.
• Facilitate or support Agile governance forums, including CCBs, ST/ARTs, RRBs, and Technical Interchange Meetings (TIMs).
• Provide analytical and administrative support to requirements and engineering review boards.
• Participate in engineering milestone reviews such as SRR, PDR, CDR, TRR, and ORR.

Required Qualifications

• Bachelor’s degree (or equivalent) in Systems Engineering, Computer Science, Engineering, or related discipline.
• Relevant systems engineering experience supporting complex IT or DoD systems.

Demonstrated experience in:

• Systems engineering and architecture development
• RMF, cybersecurity accreditation, and compliance activities
• Agile environments and requirements management
• Technical reviews and engineering governance forums
• Strong written and verbal communication skills, including experience briefing senior government stakeholders.
• Ability to work independently and lead technical discussions across multidisciplinary teams.
• Experience working across technical, functional, financial, and administrative teams
• Ability to translate between technical and non-technical stakeholders

Preferred Qualifications & Certifications

• Experience supporting or implementing ERP solutions delivered via a SaaS model in a DoD or Federal environment
• Knowledge of ERP-driven business process reengineering and configuration-based solution design
• Experience with system integration, data migration, and master data management in ERP environments
• Familiarity with RMF, cloud security, and FedRAMP considerations for SaaS solutions
• Experience supporting Agile or SAFe governance for COTS/SaaS implementations
• Experience supporting USTRANSCOM, Combatant Command, or other DoD PMO environments.
• In-depth knowledge of DevSecOps, cloud technologies, and secure system design.
• Experience supporting Agile Release Trains (ARTs) or SAFe-based environments.
• Familiarity with system testing, audits, and sustainment activities.
• 8140 work role certification: Security +
• Ability to conduct creative, "outside-the-box" research, including forums and niche platforms.

Employment Prerequisites

The following requirements must be met to be eligible for this position: successful completion of a background investigation and drug urinalysis.

SOC, a Day & Zimmermann company, is an Equal Opportunity Employer, EOE AA M/F/Vet/Disability.

Note: Any pay ranges displayed are estimations, which may have been provided by job boards. Actual pay is determined by an applicant’s experience, technical expertise, and other qualifications as listed in the job description. All qualified applicants are welcome to apply.