UNCOMN · 7 hours ago
Senior Systems Engineer/Enterprise Architect
O'Fallon, IL
Full-time
Onsite
Mid, Senior Level
$115K/yr - $135K/yr
4+ years expUNCOMN is a company that delivers secure solutions for essential operations in public and private sectors. They are seeking a Senior Systems Engineer/Enterprise Architect to support system architecture design, provide engineering expertise throughout the system lifecycle, and ensure interoperability and mission alignment across systems.
Management Consulting
No H1B
Security Clearance RequiredU.S. Citizen Only
Responsibilities
Support system architecture design, requirements development, integration planning, and configuration management activities
Provide engineering expertise for mission systems across the full lifecycle from concept development through deployment, operations, and sustainment
Develop and maintain system architecture artifacts using UAF and DoDAF, including operational, system, service, and capability viewpoints as appropriate
Utilize Model-Based Systems Engineering methods
Collaborate with customer and contractor teams to ensure interoperability, scalability, and mission alignment across systems and interfaces
Conduct analysis of system performance, dependencies, and risks; provide clear, actionable recommendations for optimization
Evaluate and recommend tools, techniques, and processes to improve system development, integration, and lifecycle management
Develop and maintain high-quality technical documentation, including Interface Control Documents (ICDs), system descriptions, engineering reports, and architecture decision artifacts
Ensure engineering artifacts align with configuration management practices and government standards
Serve as a professional, credible, and approachable technical representative in client-facing environments
Communicate complex technical concepts clearly and confidently to both technical and non-technical stakeholders
Influence architectural and engineering decisions through collaboration, trust-building, and well-reasoned analysis rather than positional authority
Support alignment across multiple teams, helping reduce friction and improve shared understanding during transformation initiatives
Qualification
Required
Bachelor's degree from an accredited university in Systems Engineering, Computer Science, Engineering, or a related field with 4+ years of relevant experience OR Master's degree with 2+ years of relevant experience
Must be eligible to obtain a Secret clearance, granted by the U.S. Government, which requires U.S. citizenship. The government also uses 13 adjudicative guidelines to determine an individual's eligibility
Strong understanding of systems engineering principles
Demonstrated experience working in a DoD or Intelligence Community (IC) environment
Hands-on experience developing architecture views, conforming to DoDAF or UAF standards, and developing architectures to ISO/IEC/IEEE 15288 System Life Cycle concepts and practices
Experience with Model-Based Systems Engineering (MBSE) tools and methodologies, preferably Sparx EA and/or Cameo EA, particularly for architecture modeling, traceability, and requirements integration
Excellent written and verbal communication skills, with the ability to engage effectively with senior government stakeholders
Must be comfortable working onsite with the potential to travel (estimated) once per month
Preferred
Active DoD (top) secret clearance
Experience leading or supporting architecture transformation efforts, including migration from DoDAF to UAF
INCOSE Systems Engineering Professional (SEP) certification
OMG Certified Systems Modeling Language Professional (OCSMP) certification
Proficiency with Atlassian tools (JIRA, Confluence) and collaboration platforms
Knowledge of cloud-based architectures (AWS, C2S) and DevSecOps environments
Familiarity with Agile and SAFe methodologies in systems or software-intensive programs
Benefits
Instant Flexible PTO: Enjoy flexible paid time off starting your very first day with us!
Generous Holidays: Benefit from 7 paid holidays and up to 3 floating holidays annually.
Immediate Health Coverage: Get access to comprehensive health benefits from day one.
401K Safe Harbor Match: Secure your future with our top-tier 401K matching program.
Performance Bonus: Stand out and you could earn an annual performance bonus.
Growth Opportunities: Advance your career with our training and education assistance programs.
Free Employee Assistance Program (EAP): Access complimentary support services for you and your family.
Company
UNCOMN
With headquarters in the greater St. Louis region, UNCOMN provides Industry-Leading B2B Management and Technology Consulting Services.
201-500 employees
Funding
Current Stage
Growth StageLeadership Team
Jason Carter
Founder / Chief Executive Officer
Thomas Pickett
Chief Financial Officer
Company data provided by crunchbase