---
title: "Simulation Engineer"
company: "NextGen Federal Systems"
company_url: "https://www.remjobs.works/companies/nextgen-federal-systems"
url: "https://www.remjobs.works/job/nextgen-federal-systems-simulation-engineer-bf58bf9a-fc9d-4474-b1db-74ae30c6ee6f"
apply_url: "https://jobs.lever.co/nextgenfed/b99485a2-6224-41a0-8cab-cc8ff6c350ad"
workplace: onsite
location: "Colorado Springs, Colorado"
employment_type: full-time
seniority: mid
role: software-engineering
region: united-states
date_posted: 2026-09-17T18:22:23.625Z
first_seen_by_remjobs: 2026-09-17T18:59:34.106Z
---

# Simulation Engineer

**NextGen Federal Systems** · Colorado Springs, Colorado

Apply: https://jobs.lever.co/nextgenfed/b99485a2-6224-41a0-8cab-cc8ff6c350ad

## About NextGen Federal Systems

NextGen Federal delivers mission‑ready products and technology services that empower federal agencies with innovative, reliable, and scalable solutions.

## About the role

NextGen is seeking an experienced AFSIM Scenario Developer to support North American Aerospace Defense Command (N&NC) mission areas through advanced modeling, simulation, analysis, and scenario development. The ideal candidate will be highly proficient in the AFSIM environment and capable of building high‑fidelity operational scenarios that support planning, experimentation, and wargaming activities.

##### Responsibilities

· Build scenarios in the AFSIM software environment that accurately represent N&NC interests and mission areas.

· Support development of Concept Plan (CONPLAN) materials, Table-Top Exercises (TTX), wargames, and select experimentation projects using AFSIM-based modeling and simulation (M&S) products.

· Align all scenarios with core mission areas, including representations of Golden Dome and Border missions.

· Develop realistic representations of space, air, land, and sea platforms, including sensors, communication links, and behavior models.

· Implement Behavior and Agent Modeling (BAM) techniques and utilize Monte Carlo methods for scenario execution.

· Save scenarios, platforms, and related objects in a data repository to ensure standardization and future reuse.

· Develop interfaces for import/export between AFSIM and other software entities

· Document interface designs and produce user instructions.

· Run AFSIM simulations in support of N&NC analysis tasks and overall M&S efforts.

· Build and execute AFSIM scenarios for CONPLAN development, TTXs, wargames, and experimentation projects as tasked.

· Prepare and deliver data outputs, written reports, and briefing products as required by the Government.

##### Qualifications

· BS or equivalent in Computer Science, Engineering, Mathematics, or equivalent technical degree

· 5+ years’ prior work experience in the aerospace or defense industry, with demonstrated AFSIM experience

· Must have an active Top-Secret SCI (TS/SCI) security clearance

· Demonstrated proficiency and experience in the AFSIM development environment.

· Strong understanding of military operations across space, air, land, and maritime domains.

· Experience developing behavior models, agent-based simulations, or Monte Carlo analytical methods.

· Ability to translate government specifications into fully functional AFSIM scenarios and platform models.

· Experience documenting technical interfaces and providing user instructions.

· Ability to produce clear, professional reports and briefing materials.

About NextGen:

NextGen Federal Systems is an innovative technology and professional services provider specializing in advanced software solutions and comprehensive mission and business support services. We work in close collaboration with our customers to truly understand their business and mission goals. Our approach is to design, build, implement, and manage solutions that measurably improve our client’s organizational performance. We have established and foster a corporate culture where we:

- Treat employees with fairness and respect regardless of their position, sexual identity, race, or tenure.

- Communicate the importance of our mission and our employees’ contributions to it, ensuring they understand how their job role contributes to the greater good.

- Openly promote and communicate our ideas for change and adaptability.

- Strive to achieve results as an organization.

- Hold employees accountable to their commitments and provide incentives that encourage positive and productive behaviors.

- Value the talents and contributions of our employees as the key factor for our success.

- Create an environment where people can engage at all levels.

- Encourage people to take risks and allow them to make mistakes.

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities.

RefID: A01z

---

Source: NextGen Federal Systems's own career page, read by RemJobs. Canonical HTML version: https://www.remjobs.works/job/nextgen-federal-systems-simulation-engineer-bf58bf9a-fc9d-4474-b1db-74ae30c6ee6f