Senior Systems Engineer: Mission-Critical & Secure IT

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

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