Senior Enterprise Architect (Digital Engineering)

Modern Technology Solutions Inc•St. Louis, MO

5h•$130,000 - $190,000•Onsite

About The Position

Modern Technology Solutions, Inc. (MTSI) is hiring a Senior Enterprise Architect to work in Springfield, VA or St. Louis, MO. Qualified candidates must be U.S. citizens with an active TS/SCI clearance and be eligible to obtain a CI Poly. This role involves defining and evolving the architecture framework for a Digital Engineering Ecosystem (DEE) supporting NGA, owning the technical vision for integrating enterprise architecture, Model Based Systems Engineering (MBSE), and business intelligence into a governed, model-driven digital enterprise. The position requires setting MBSE standards, lifecycle traceability approaches, and digital thread strategy, while also leading strategic meetings with government stakeholders and serving as a primary technical and management point of contact.

Requirements

Bachelor's degree in Systems Engineering, Computer Science, or a related field, or additional relevant experience in lieu of a degree.
15+ years of enterprise architecture or systems engineering experience.
Demonstrated hands-on expertise with UAF and SysML modeling, including tools such as Cameo Enterprise Architect, Teamwork Cloud, or comparable MBSE platforms.
Experience developing Architecture Decision Records, tool trade studies, and capability/gap analyses for large, multi-organization enterprises.
Strong understanding of Model Based Systems Engineering (MBSE) and Model Based Enterprise Architecture (MBEA) principles and their application to Digital Twins.
Possess deep familiarity with UAF and SysML modeling and the ability to lead current-state assessments and tool trade studies for a large, multi-organization enterprise.
Must be a U.S. citizen with an active TS/SCI clearance and have the ability to pass a CI polygraph within 30 days.

Nice To Haves

Experience supporting NGA, DoD, or Intelligence Community enterprise data or digital engineering programs.
Familiarity with SysMLv2 and associated textual modeling/validation tooling (e.g., VS Code with SysIDE).
Experience with requirements management tools such as IBM DOORS Next and traceability/integration tools such as Syndeia.
Exposure to Modeling, Simulation & Analysis (MS&A) tools such as AFSIM, STK, or Unreal Engine, and geospatial tools such as ArcGIS.
INCOSE CSEP/ESEP or equivalent systems engineering certification.

Responsibilities

Define and evolve the architecture framework underpinning a Digital Engineering Ecosystem (DEE) supporting NGA.
Owns the technical vision for how enterprise architecture, Model Based Systems Engineering (MBSE), and business intelligence layers integrate into a single governed, model-driven digital enterprise.
Sets MBSE standards, lifecycle traceability approaches, and digital thread strategy, and works hands-on in high-impact areas to ensure the architecture remains open, standards-based, and vendor-neutral.
Leads strategic-level meetings with government stakeholders and serves as a primary point of contact for technical and management issues of strategic importance to the program.
Define and maintain the overall architecture framework, MBSE standards, and lifecycle traceability approach for the DEE, using UAF for enterprise-level modeling and SysML (v1 and emerging v2) for system-level semantics.
Lead current-state capture and evaluation of the enterprise Digital Ecosystem — capabilities, IT assets, services, data types, interfaces, and data repositories — captured in UAF/SysML models as the initial enterprise baseline.
Conduct tool trade studies and produce Architecture Decision Records (ADRs), weighing cost, security, license tier, cloud-native compatibility, interoperability, vendor agnosticism, and sustainment tail.
Establish Model Based Enterprise Architecture (MBEA) practices enabling enterprise-wide modeling of capabilities, processes, systems, services, and data, extending into MBSE-driven Digital Twins.
Drive interoperability between MBSE and Modeling, Simulation & Analysis (MS&A) tools to establish Digital Threads linking capabilities across the lifecycle.
Author and evolve enterprise current-state models, capability maturity assessments, and supporting architecture/requirements documentation.
Partner with program leadership, engineering, and data architecture teams to align governance of enterprise architecture models, data models, metadata models, schemas, and ontology.
Own and oversee all program governance activities, including model integrity standards, data consistency policies, and lifecycle alignment across the Digital Engineering, Data Layer, Cloud Native Platform, and Enterprise Architecture & BI swimlanes, ensuring cyber and security practices are integrated into each engineering discipline rather than siloed.