--- title: Senior Enterprise Architect description: Modern Technology Solutions, Inc. (MTSI) is hiring for the Senior Enterprise Architect role in St. Louis, MO. See the full description and apply. type: job url: https://www.foundrole.com/jobs/senior-enterprise-architect-at-modern-technology-solutions-inc-mtsi-01a16f15-4db9-725a-961f-732de3598fb1 date: 2026-11-01T01:15:10Z og_description: Join Modern Technology Solutions, Inc. (MTSI) as Senior Enterprise Architect in St. Louis, MO. Pays $130K–$190K per year. On-site role. og_image: https://www.foundrole.com/og/b0uoep.png breadcrumbs: - label: Home url: https://www.foundrole.com/ - label: Search url: https://www.foundrole.com/jobs --- | | | |---|---| | **Company** | Modern Technology Solutions, Inc. (MTSI) | | **Location** | St. Louis, MO | | **Salary** | $130K/yr - $190K/yr | | **Posted** | Oct 30, 2026 | ## Is this job real? **Ghost job check:** A · Low risk. Probably a real opening. ## Visa sponsorship - **H-1B:** No H-1B sponsorship on record for Modern Technology Solutions, Inc. (MTSI). - **E-Verify:** No E-Verify enrollment on record for Modern Technology Solutions, Inc. (MTSI). ## Pay for similar jobs Most similar jobs pay $150,000 – $187,000 a year (median $165,000). ## Description **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. **Responsibilities:** • Define and evolve the architecture framework underpinning a Digital Engineering Ecosystem (DEE) supporting our Intel customer. • 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. **Required Qualifications:** • 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. **Desired Qualifications:** • Experience supporting 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. **Clearance Requirements:** • Must be a U.S. citizen with an active TS/SCI clearance and have the ability to pass a CI polygraph within 30 days. The pay range for this position is $130,000 to $190,000/year; however, base pay offered may vary depending on established government contract ranges, job-related knowledge, skills, and experience, and other factors. MTSI also offers a full range of medical, financial, and other benefits, dependent on the position offered. Base pay information is based on market location. Applications will be accepted on an ongoing basis. This posting will be renewed periodically until the position is filled. **#LI-RC2** ## Skills - Cloud Computing - Cyber Security - Data Models - Technical Leadership - Enterprise Architecture - Architecture Decision Records - Ontology (Data Modeling) - Unreal Engine - Cloud-Native Computing - Teamwork - Systems Engineering - Requirements Management Software - Interoperability - Requirements Documentation - Information Architecture - Microsoft Business Intelligence BI - Visual Studio Code - Data Layer (Tag Management) - Digital Engineering - Sustainment - Statistics - Model Based Systems Engineering - CI/CD - ESRI ArcGIS - Data Architecture - Simulations - IBM Rational DOORS - Business Intelligence - Polygraphy - Digital Twin - Computer Science - Geospatial Analysis - Digital Thread - Governance - Top Secret-Sensitive Compartmented Information (Ts/sci Clearance) - Trade Studies ## Benefits - Health Insurance ## Related - [Technology & Software jobs](https://www.foundrole.com/careers/technology-and-software?utm_source=ai_markdown)- [Cloud & DevOps jobs](https://www.foundrole.com/careers/technology-and-software/cloud-and-devops?utm_source=ai_markdown)- [Solutions Architect jobs](https://www.foundrole.com/careers/technology-and-software/cloud-and-devops/solutions-architect?utm_source=ai_markdown)- [Enterprise Architect jobs](https://www.foundrole.com/careers/technology-and-software/cloud-and-devops/solutions-architect/enterprise-architect?utm_source=ai_markdown)- [Browse all companies](https://www.foundrole.com/companies?utm_source=ai_markdown) ## Explore this job market - [Engineering Services](https://www.foundrole.com/sectors/transportation-and-logistics/engineering-services?utm_source=ai_markdown) — 140488 jobs - [Missouri](https://www.foundrole.com/locations/us/missouri?utm_source=ai_markdown) — 52471 jobs - [St. Louis, MO](https://www.foundrole.com/locations/us/missouri/st-louis?utm_source=ai_markdown) — 10645 jobs ## Related pages - [Engineering Services](https://www.foundrole.com/sectors/transportation-and-logistics/engineering-services?utm_source=ai_markdown) — 140488 jobs - [Missouri](https://www.foundrole.com/locations/us/missouri?utm_source=ai_markdown) — 52471 jobs - [St. Louis, MO](https://www.foundrole.com/locations/us/missouri/st-louis?utm_source=ai_markdown) — 10645 jobs ## Browse - [Companies](https://www.foundrole.com/companies?utm_source=ai_markdown) - [Jobs by country](https://www.foundrole.com/locations?utm_source=ai_markdown) - [Jobs in the United States by state and city](https://www.foundrole.com/locations/us?utm_source=ai_markdown) - [H1B sponsors by location](https://www.foundrole.com/h1b-sponsors?utm_source=ai_markdown) - [H1B salaries](https://www.foundrole.com/h1b-salaries?utm_source=ai_markdown) - [Sectors and industries](https://www.foundrole.com/sectors?utm_source=ai_markdown) - [Jobs by career field](https://www.foundrole.com/careers?utm_source=ai_markdown) - [Latest jobs](https://www.foundrole.com/jobs/latest?utm_source=ai_markdown)