Senior Systems Engineer: Secure, Cross‑Domain IT (TS/SCI)

LMI Government Consulting; Northern (KY); Hybrid; USD 125,000 - 250,000; Full time

Job summary

LMI Government Consulting is seeking a highly experienced Systems Engineer to design, integrate, validate, and sustain enterprise IT capabilities across secure facilities. The role requires systems thinking, disciplined analysis, and the ability to manage requirements, interfaces, risk, and lifecycle considerations in a fast-paced prototype environment.

Location is the Washington, DC area with 25-50% travel; a TS/SCI clearance is required, and experience with multi-enclave classified

Qualifications

• Bachelor-level systems engineering degree or higher required.
• Experience designing, integrating, testing, or sustaining complex enterprise IT systems.
• Experience in classified environments and cross-domain integration is preferred.
• Familiarity with RMF/NIST guidance and security clearances is valuable.

Responsibilities

• Enumerate and document technical baselines across geographically dispersed sites.
• Translate mission needs into clear, measurable system requirements.
• Develop current/transition/target-state designs for network, cloud, and data capabilities.
• Define boundaries, interfaces, data flows, and performance requirements.
• Conduct analyses addressing capability, interoperability, security, and lifecycle impacts.
• Develop and execute integration, verification, validation, and acceptance plans.
• Maintain configurations, baselines, interface docs, and engineering decisions.
• Coordinate with leads, operators, security personnel, and stakeholders to resolve cross-domain issues.
• Develop automated provisioning, testing, and monitoring methods to boost efficiency.

Skills

Systems engineering lifecycle

Requirements analysis

System architecture

Verification & validation

Risk management

Stakeholder communication

Documentation and records

Education

Bachelor's degree in Systems Engineering, Computer Science, Information Technology, Engineering, or related field

Job description

LMI Government Consulting is seeking a highly experienced Systems Engineer to design, integrate, validate, and sustain enterprise IT capabilities across secure facilities. The role requires systems thinking, disciplined analysis, and the ability to manage requirements, interfaces, risk, and lifecycle considerations in a fast-paced prototype environment.

Location is the Washington, DC area with 25-50% travel; a TS/SCI clearance is required, and experience with multi-enclave classified