Senior Systems Engineer

Intelligence Consulting Enterprise Solutions, Inc. (ICES); St. Louis (MO); On-site; USD 110,000 - 160,000; Full time

Job summary

Intelligence Consulting Enterprise Solutions, Inc. (ICES) seeks a Senior Systems Engineer for a full-time, on-site role based in St. Louis, MO.

You will lead systems engineering activities across the full lifecycle, develop architectures, and coordinate with cross-functional teams to ensure performance, security, and RMF-compliant operations. You will mentor engineers, contribute to process improvements, and collaborate with stakeholders to plan system upgrades and modernization efforts in

Qualifications

• Strong systems engineering for complex mission-critical environments.
• Hands-on system administration and support to maintain enterprise systems.
• Advanced troubleshooting to diagnose and resolve issues across platforms.
• Lifecycle engineering: requirements, integration, testing, validation.
• Familiarity with secure and compliant environments (RMF or similar).
• On-site work in St Louis, MO with cross-team collaboration.
• Excellent analytical, documentation, and communication skills.
• Bachelor’s degree in engineering, CS or related field; advanced degree or certifications are beneficial.
• Security clearance eligibility is advantageous.

Responsibilities

• Lead systems engineering across the full lifecycle, including design and verification.
• Develop and maintain system architectures and documentation.
• Coordinate with cross-functional technical teams to meet requirements.
• Ensure performance, security, and compliance of systems.
• Mentor other engineers and drive process improvements.
• Collaborate with stakeholders to plan upgrades and modernization.

Skills

Systems engineering

System administration

Troubleshooting

Lifecycle engineering

RMF familiarity

On-site collaboration

Documentation skills

Education

Bachelor’s degree in Engineering, Computer Science, or related field

Advanced degree or relevant certifications

Job description

Company Description

Intelligence Consulting Enterprise Solutions, Inc. (ICES) is a Veteran-Owned Small Business specializing in digital engineering, enterprise and solution architecture, systems integration, and secure modernization for mission-critical environments. For more than 22 years, ICES has supported Intelligence Community, defense, and federal organizations in translating complex mission needs into executable requirements, integrated solutions, and verified capabilities. The company’s expertise includes MBSE, systems and software engineering, DevSecOps, cloud and data architecture, cybersecurity and RMF, IV&V, mission engineering, and IT and software asset management. ICES is backed by an experienced, cleared workforce and nearly 15 years of prime-contract leadership, bringing technical rigor and disciplined delivery to national-security challenges. Team members join a culture that values independent judgment, collaboration, and high-quality results in support of critical missions.

Role Description

The Senior Systems Engineer is a full-time, on-site role based in St Louis, MO. This position is responsible for leading systems engineering activities across the full lifecycle, including requirements analysis, systems design, integration, and verification for complex mission-critical environments. Day-to-day tasks include developing and maintaining system architectures and documentation, coordinating with cross-functional technical teams, and ensuring systems meet performance, security, and compliance requirements. The Senior Systems Engineer will perform advanced troubleshooting, guide system administration best practices, and provide technical support to resolve issues impacting operations. The role also includes mentoring other engineers, contributing to continuous improvement of engineering processes, and collaborating with stakeholders to plan and implement system upgrades and modernization efforts.

Qualifications

• Strong systems engineering skills, including Systems Engineering and Systems Design for complex, mission-critical environments.
• Hands-on experience with System Administration and Technical Support to maintain, configure, and support enterprise systems.
• Proven ability in advanced Troubleshooting to diagnose, analyze, and resolve technical issues across diverse platforms.
• Experience with lifecycle engineering practices, including requirements development, integration, testing, and validation.
• Familiarity with secure and compliant environments (e.g., cybersecurity principles, RMF, or similar frameworks).
• Ability to work on-site in St Louis, MO and collaborate effectively with multidisciplinary teams and stakeholders.
• Excellent analytical, documentation, and communication skills, with attention to detail and accountability for quality.
• Bachelor’s degree in Engineering, Computer Science, or a related technical field; advanced degree or relevant certifications are beneficial.
• Experience supporting Intelligence Community, defense, or federal programs and eligibility for a security clearance is highly advantageous.