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Who We Are: Founded in 2007, SimIS Inc. is an innovative information technology solution Veteran Owned Small Business (VOSB) that models future environments, requirements, and capabilities, and then secures the enterprise from internal and external threats compliant with Federal, State, and industry standard governance to ensure client mission success. Our performance standard is "excellence," with an outcomes-based, quality focus in our services and products, guided by our core values of honesty (in word and deed), relationships (confidence and trust with clients and partners), teamwork (shared goals, mission, and purpose), loyalty (allegiance to our client and team), and importance of others (work and win as a team).

SimIS is currently recruiting for the listed position and is contingent upon award.

Job Description:
The ideal candidate will support U.S. military Modeling & Simulation (M&S) efforts under the guidance of senior developers at our Suffolk, Virginia headquarters. This entry-level role involves assisting in the design, development, integration, and maintenance of simulation systems used for training, analysis, and decision support in defense environments. The candidate will work closely with experienced team members to develop foundational skills in software engineering while gaining exposure to military systems, simulation standards, and real-time/constructive simulations.

The candidate performs the following specific assignments:

Assists in developing simulation software for military training and analysis under senior supervision
Supports software development efforts using established coding standards and best practices
Learns and applies simulation frameworks such as HLA (High-Level Architecture) and DIS (Distributed Interactive Simulation)
Contributes to the development of simulation scenarios, models, and system behaviors
Participates in software testing and quality assurance activities
Assists with integrating models and simulations with C4ISR systems and external interfaces
Supports technical documentation efforts including design specifications and test plans
Collaborates with team members to translate basic military requirements into software components
Participates in code reviews and learns from senior developers
Maintains version control practices and follows configuration management procedures
Assists with compliance with software development standards and security guidelines

Experience Required:

Bachelor's degree in Computer Science, Software Engineering, Computer Engineering, or related field
1-3 years of software development experience (internships and academic projects count)
Basic proficiency in one or more programming languages: C++, C#, Java, or Python
Understanding of fundamental software engineering principles

Experience Desired:

Academic coursework or projects related to modeling and simulation
Understanding of software engineering best practices including Agile/Scrum methodologies
Exposure to simulation frameworks such as HLA, DIS or similar M&S tools
Basic understanding of version control systems (Git)
Interest in military systems and defense applications
Academic experience with databases and data structures
Familiarity with software testing principles

Special Skills/Knowledge/Training Required/Desired:

Strong analytical and problem-solving skills
Excellent communication and teamwork abilities
Eagerness to learn and adapt to new technologies
Detail-oriented with strong debugging skills
Ability to work in a fast-paced, collaborative environment

Benefits:

Medical, Dental, and Vision
Short-Term Disability (at no cost to you) & Long-Term Disability
Life Insurance
401(k) Savings Plan
Flex Spending Accounts
Tuition Assistance Program
Professional Development
Paid Time Off (PTO)
11 Federal Holidays each year

SimIS, Inc. is an EOE / M / F / Disability / VET / Drug Free Employer

About the company

SimIS delivers IT solutions for government and defense, specializing in modeling and simulation, test and evaluation, cybersecurity, and autonomous systems. Its M&S work uses cognitive systems engineering to create executable models and simulations; T&E validates system performance for DoD and DHS; cybersecurity includes compliance support such as CMMC. The company develops autonomous platforms in its robotics lab, including the SimIS Autonomous Maritime System (SAMS) and RiverScout, plus AI/ML, data analytics, software development, and 3D printing. Its model centers on securing prime government contracts and IDIQ vehicles, with services supported by a Tier 3 data center for hosting and managed IT services, aiming to help government customers model, test, secure, and deploy advanced systems.

Company Size

11-50

Company Stage

N/A

Total Funding

N/A

Headquarters

N/A

Founded

2007

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Simplify's Take

What believers are saying

December 2025 SHIELD IDIQ win opens Missile Defense Agency and DoD pipelines.
August 2026 GSA MAS prime status supports recurring federal purchasing and cloud work.
September 2026 Constellis and I/ITSEC presence keeps SimIS visible to buyers and recruits.

What critics are saying

ICE office lease needs Suffolk Council approval; delays block a multi-year revenue stream.
MDA SHIELD positioning still depends on task orders, not guaranteed funded work.
Autonomy demos at I/ITSEC and Constellis do not prove production-scale adoption.

What makes SimIS unique

Veteran-owned Suffolk firm sells cleared modeling, simulation, cyber, and autonomy to defense customers.
GSA MAS prime contract 47QTCA23D0056 runs through February 2043, broadening federal access.
RiverScout and SAMS give SimIS owned robotics platforms, not just staff augmentation.

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Benefits

Health Insurance
Dental Insurance
Vision Insurance
Disability Insurance
Flex Spending Accounts
401(k) Retirement Plan
Tuition Reimbursement
Professional Development Budget
Paid Time Off
Paid Holidays

SimIS

Junior Software Developer - Modeling & Simulation

About the job