ONSITE

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 this position is 100% "Onsite".

Job Description:
The ideal candidate is responsible for independently executing software design and development tasks. Is capable of leading and working as part of an agile team to design, implement and revise software applications. Writes sleek, performant code in a manner consistent with the team's style and best practices. Collaborates with clients and stakeholders in the development of requirements. Stays abreast of the "state of the art" through self and group study. Acts as a mentor to junior staff.

The ideal candidate is responsible for design, development, troubleshooting, debugging, integration and implementation of systems in support of the warfighter. The candidate will be responsible for developing application software, debugging and testing application code, coordinating with the development team, constructing test cases, assisting with software documentation, learning new technical tools required for the role, and complying with hardware and software systems standards and procedures. Performs other related duties as required.

The candidate performs the following specific assignments:

Develop application software
Debug and test application code
Coordinate with the development team
Construct test cases
Assist with software documentation
Use aptitude to learn new technical tools required for the role
Comply with hardware and software systems standards and procedures
Develop REST API backends using ASP.NET and/or ASP.NET Core (using C#)
Develop in Microsoft ASP.NET (using C#)
Investigate, troubleshoot, and design solutions to problems in operational software

Experience Required:

Bachelor's degree in computer science or related field
Minimum 5 years of job-related experience
Minimum 2 years of experience developing REST API backends using ASP.NET and/or ASP.NET Core (using C#)
Minimum 3 years of experience developing in Microsoft ASP.NET (using C#)

Experience Desired:

Experience with a distributed version control system, such as GIT
Experience with client-side development using JavaScript or TypeScript
Experience with font-end frameworks such as Vue.js
Proficient with Back End Development in multi-tiered application using platforms such as C#, T-SQL, ASP.Net core & Entity Framework
Experience developing Unit Tests such as MSTest, xUnit, or nUnit
Experience with using Microsoft SQL Server
Experience working in Agile teams such as scrum
Experience with Agile and DevOps or DevSecOps software development practices, such as Continuous Integration/Continuous Delivery (CI/CD), Test Driven Development (TDD)

Special Skills/Knowledge/Training Required/Desired:

Security+ CE certification (required within 6 months of hire date)
Agile methodologies and tools
DevOps practices and tools
Experience with DoD software development processes

Benefits:

Medical, Dental, and Vision
Short Term Disability (provided at no cost to you) and 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 AA / 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

Software Engineer 3

About the job