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SimIS Inc. Tech Stack

Modeling and simulation for U.S. Navy warfare systems and test evaluation

Information Technology & Services Portsmouth, Virginia 51–200 employees Founded 2007 Privately Held

SimIS is a Veteran Owned Small Business embedded in U.S. Navy modernization, focused on operational test and evaluation (OT&E) and combat system simulation. The tech stack—MagicDraw, UML, SysML, MATLAB, LabVIEW, and Appian—reflects deep systems engineering and simulation maturity rather than typical enterprise software tooling. Engineering dominates hiring (48 of 74 active roles), with senior-level technical depth concentrated in project leadership and systems analysis, signaling work on high-complexity, long-cycle military programs.

Tech Stack 74 technologies

Core StackLinux Cisco MATLAB Jira C++ Java Python C# .NET SAS Angular JavaScript Salesforce MagicDraw UML SysML BPMN Windows Wireshark SPICE LabVIEW Microsoft Project R SPSS Microsoft Office Lua HTML SOAP REST API Appian+44 more

What SimIS Inc. Is Building

◆Challenges

Modernizing the force
Complex test and evaluation projects
Supporting operational analysis for future threats
Complex simulation training systems
Collecting test data across diverse border environments
Compliance with government requirements
Lack of sme for ot&e
Operational test and evaluation of undersea warfare systems
Adapting to future threats
Exploring long-term military strategy

▲Active Projects

Capability requirements development
Ot&e of us navy undersea warfare systems
Capability requirements and operational analysis for future threats
Supporting warfare analysis and digital modeling branch
Combat system simulation support for m33 branch
Shore-based training systems
Scenario development tools
High fidelity simulation systems for combat systems verification
Simulation system integration
Data collection methods for surveillance systems

Hiring Activity

Decelerating75 roles · 15 in 30d

Department

Engineering

48

Ops

9

Data

4

Research

4

Security

3

Design

2

Sales

2

Logistics

1

Seniority

Senior

42

Mid

20

Manager

4

Director

3

Junior

3

C-Level

1

Lead

1

Notable leadership hires: Project Lead, Chief Systems Analyst, Emerging Technology Assessment Lead

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About SimIS Inc.

SimIS Inc., founded in 2007 and based in Portsmouth, Virginia, delivers modeling, simulation, and cybersecurity solutions to the U.S. Department of Defense, primarily supporting Navy warfare systems modernization. The company operates across three interconnected domains: capability modeling and requirements analysis, high-fidelity combat system simulation and training, and operational test and evaluation for undersea and surface warfare platforms. Active projects include OT&E support for undersea systems, M33 combat system verification, shore-based training infrastructure, and scenario development tools. The 51–200-person workforce is almost entirely U.S.-based, with deep domain expertise in naval operations, systems architecture, and test methodology.

HeadquartersPortsmouth, Virginia

Company Size51–200 employees

Founded2007

Hiring MarketsUnited States

Frequently Asked Questions

What technologies does SimIS use?

Core stack: MagicDraw, UML, SysML, MATLAB, LabVIEW, Jira, Appian, Salesforce, C++, Java, Python, Cisco, Wireshark, and Microsoft Project. Engineering-focused, built for modeling, simulation, and systems verification.

What is SimIS working on?

Navy modernization and warfare systems: OT&E for undersea platforms, M33 combat system simulation, shore-based training systems, capability requirements analysis, and scenario development tools for future threat assessment.