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# Simulation Software Engineer - Training Systems

- **Company:** CareerCircle
- **Location:** Chantilly, VA, United States
- **Experience:** Expert
- **Salary:** $131,300.0 - $237,350.0
- **Contract:** Permanent contract
- **Skills:** C (Programming Language), HTML, Java (Programming Language), JavaScript (Programming Language), Microsoft Windows, Application Programming Interfaces (APIs), Agile Methodology, Artificial Intelligence, Amazon Web Services, Amazon Elastic Compute Cloud, Amazon S3, Data Analysis, Application Performance Management, Confluence, JIRA, Automation of Tests, Microsoft Azure, C++ (Programming Language), Cascading Style Sheets (CSS), Cloud Engineering, Configuration Management, Compilers, Code Review, Computer Programming, Databases, Continuous Delivery, Continuous Integration, Data as a Services, Data Security, Relational Databases, Software Debugging, Linux, DevOps, Web Development, Django Web Framework, Elasticsearch, Embedded Software, Event-Driven Programming, Geospatial Intelligence, Graphical User Interface, Design of User Interfaces, Human-Computer Interaction, Information Systems Security Architecture Professional, JavaScript Libraries, JSON, JQuery, Python (Programming Language), PostgreSQL, Apache Maven, Microsoft SQL Server, MySQL, Cisco Nexus Switches, Node.Js, NoSQL, Object-Oriented Software Development, Oracle (Applications), Scrum Methodology, Software Architecture, Svelte, Requirements Management, Simulation Software, Amazon Simple Notification Service (SNS), Software Configuration Management, Software Engineering, Software Systems, SonarQube, Vault (Revision Control System), SQL Databases, Systems Integration, Transmission Control Protocol (TCP), Virtualization Technology, Web Applications, Web Application Frameworks, Enterprise Application Integration, Data Logging, Data Processing, Google Cloud, Warehouse Management Systems, Okta, DevOps Tools - Open-source, ReactJS, Flask (Web Framework), Database Optimization, Spring-boot, Multi-Cloud, Infrastructure as Code (IaC), Backend, Gitlab, Git, Cloudformation, Vue.js, SC Clearance, Event Driven Architecture, Amazon Relational Database Service, Containerization, AngularJS, Gitlab-ci, Integration Tests, Kubernetes, Information Technology, Bitbucket, Front End Software Development, Software Coding, Restful APIs, Amazon Simple Queue Service (SQS), Terraform, Software Version Control, Devsecops, Docker, Jenkins, Artifactory, Programming Languages, Microservices
- **Published:** September 12, 2026
- **Apply:** https://www.careercircle.com/jobs/all/all/usa/mo/saint-louis/92d1c904-c854-4f96-9c84-8a8155969998

## About the Role

Active Top Secret/SCI with the ability to successfully pass a Polygraph examination., * US citizenship is required per contract.

 * Bachelor's degree in Computer Science, Software Engineering, or related field and 12-15 years of prior relevant experience or Master's with 10-13 years of prior relevant experience.
 * Proficient with the following technologies:
 + Web: HTML, CSS, JSON, and REST APIs
 + Object-oriented Programming: Python, Java, and JavaScript
 + Advanced Programming: Go
 + Front-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django, Node.js, Flask, or Svelte.
 + Cloud Development:
o Multi-cloud architectures: AWS, IBM, Google, Azure, and Oracle.
o Specific AWS Services: S3, SQS, SNS, EC2, CloudFormation and RDS

 + Relational Database: MySQL, PostgreSQL, or SQL Server
 + NoSQL Database: OpenSearch/Elasticsearch.
 + Operating System: Windows, Linux
 + Version Control System: Git
 * Proficiency with AWS (C2S/GovCloud) and Infrastructure-as-Code (Terraform, CloudFormation).
 * Established experience building and deploying containerized services (Docker/Kubernetes).
 * Solid understanding of DevSecOps tools: GitLab CI/CD, Jenkins, SonarQube, Nexus, Keycloak, Vault.
 * In depth knowledge of Agile/Scrum practices and tools (JIRA, Confluence)
 * Solid understanding of customer specific data types and standards, such as OGC WMS/WFS, NSG, and GEOINT workflows.

Preferred Qualifications:

 * Frontend Web Development: UI/UX
 * Prior experience supporting Intelligence Community mission systems.
 * Experience with messaging/event-driven architecture.
 * Experience with observability, logging, monitoring, and application performance management.
 * Advanced certifications such as AWS Certified Developer or Solutions Architect, CISSP, SAFe Agile or similar.

#Chinook

#NSBA, Linux
Physics
Debugging
Chemistry
Ingenuity
Compilers
Innovation
Creativity
Test Tools
Mathematics
Reliability
Prototyping
Imagination
Data Science
Adaptability
Web Authoring
Export Control
Version Control
Post Processing
Data Processing
Customer Service
Computer Science
Systems Thinking
Secret Clearance
Operating Systems
Embedded Software
Influencing Skills
Security Clearance
Industry Standards
Software Solutions
Process Improvement
Development Testing
Systems Integration
Integration Testing
Data Analysis Tools
Software Engineering
Software Development
Collective Bargaining
Software Architecture
Information Processing
Requirements Management
Graphical User Interface
Manufacturing Engineering
C++ (Programming Language)
Git (Version Control System)
Python (Programming Language)
Influencing Without Authority
Interdisciplinary Collaboration
Troubleshooting (Problem Solving)
Transmission Control Protocol (TCP)
+0

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## Description

JIRA
MySQL
CI/CD
JQuery
Jenkins
Teamwork
Equities
Terraform
SonarQube
DevSecOps
Innovation
Kubernetes
SAFe Agile
PostgreSQL
Opensearch
Data Types
Code Review
Scalability
Reliability
Market Data
RESTful API
Multi-Cloud
Spring Boot
Data Access
GitLab CI/CD
Microservices
Observability
Test Automation
Database Tuning
Microsoft Azure
Web Development
Control Systems
Software Design
Data Processing
Sprint Planning
Computer Science
Web Applications
Front End Design
Agile Methodology
Docker (Software)
Influencing Skills
AWS CloudFormation
Amazon Web Services
User Interface (UI)
Continuous Delivery
Software Engineering
Technical Leadership
Demonstration Skills
Atlassian Confluence
Emerging Technologies
Solution Architecture
Software Architecture
Flask (Web Framework)
Engineering Practices
Continuous Integration
Django (Web Framework)
Technical Requirements
Angular (Web Framework)
Geospatial Intelligence
AWS Certified Developer
Event-Driven Programming
Application Environments
SQL (Programming Language)
Java (Programming Language)
Vue.js (Javascript Library)
Node.js (Javascript Library)
Warehouse Management Systems
Cascading Style Sheets (CSS)
Scrum (Software Development)
Infrastructure as Code (IaC)
Amazon Elastic Compute Cloud
React.js (Javascript Library)
Python (Programming Language)
Software Development Life Cycle
Back End (Software Engineering)
Front End (Software Engineering)
HyperText Markup Language (HTML)
Application Performance Management
Enterprise Application Integration
Application Programming Interface (API)
Certified Information Systems Security Professional
Top Secret-Sensitive Compartmented Information (TS/SCI Clearance), Are you a highly skilled Software Engineer ready to tackle complex technical challenges that directly support our nation's intelligence mission? Leidos is seeking an accomplished Software Engineer Subject Matter Expert (SME) to join the Chinook Program supporting our Intelligence Community customer.

This is an exciting opportunity to bring your software engineering expertise to a high-impact mission where innovation, technical excellence, and teamwork make a real difference. You will work alongside talented engineers, architects, mission experts, and government stakeholders to develop and deliver secure, scalable, and modern software capabilities that support critical national security objectives.

As a Software Engineer SME, you won't simply be writing code, you'll help shape technical solutions, influence architecture, solve challenging engineering problems, and elevate the capabilities of the team around you. We are looking for a hands-on technical leader who thrives in a collaborative environment and is excited about applying modern software engineering practices to meaningful mission challenges.

In this role you will provide hands-on technical leadership across the full software development lifecycle, designing, developing, integrating, testing, deploying, and maintaining mission-critical applications and services. The SME will serve as a senior technical authority within the development team, helping establish sound engineering practices, resolve complex technical challenges, mentor other engineers, and collaborate closely with government and contractor stakeholders., * Serve as the senior technical SME and technical advisor for mission applications under the Chinook program.

 * Design, develop, integrate, test, deploy, and maintain modern web applications and backend services.
 * Develop scalable, maintainable, and secure software across both front-end and back-end tiers.
 * Translate mission and technical requirements into robust software architecture and implementation plans.
 * Provide technical leadership in software design, architecture, coding standards, code reviews, and engineering best practices.
 * Develop and maintain RESTful APIs, microservices, data services, and system integrations.
 * Build responsive and user-focused front-end interfaces using modern web development frameworks
 * Design and optimize database schemas, queries, data-access layers, and data-processing workflows.
 * Troubleshoot complex application, integration, performance, and production issues.
 * Support automated testing, continuous integration/continuous delivery (CI/CD), and DevSecOps practices.
 * Contribute to containerized and cloud-enabled application environments as applicable to the program.
 * Participate in Agile/Scrum ceremonies, sprint planning, backlog refinement, demonstrations, and technical working sessions.
 * Mentor junior and mid-level software engineers and promote consistent engineering practices across the team.
 * Identify opportunities to improve application performance, reliability, security, scalability, and maintainability.
 * Evaluate emerging technologies and recommend solutions based on mission requirements and technical feasibility., DevOps, Physics
Chemistry
Bitbucket
Leadership
Mathematics
Artifactory
Data Science
Export Control
Version Control
Computer Science
Secret Clearance
Agile Methodology
Embedded Software
Problem Reporting
Security Clearance
Software Solutions
Software Engineering
Atlassian Confluence
Collective Bargaining
Digital Transformation
C (Programming Language)
Manufacturing Engineering
Agile Software Development
C++ (Programming Language)
Git (Version Control System)
Python (Programming Language)
Software Development Life Cycle
Troubleshooting (Problem Solving)
Software Configuration Management
Object-Oriented Programming (OOP)
+0

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Experienced Simulation Software Engineer - Training Systems
Boeing

Hazelwood, MO*On-Site

Gitlab
Physics
Aviation
Debugging
Chemistry
Innovation
Algorithms
Kubernetes
Mathematics
Test Design
Artifactory
Data Science
Azure DevOps
Apache Maven
Export Control
Virtualization
Microsoft Azure
Computer Science
Containerization
Secret Clearance
Agile Methodology
Docker (Software)
Project Management
Security Clearance
Amazon Web Services
Simulation Software
Software Engineering
Programming Languages
Emerging Technologies
Collective Bargaining
Artificial Intelligence
Configuration Management
C (Programming Language)
Manufacturing Engineering
C++ (Programming Language)
Google Cloud Platform (GCP)
Python (Programming Language)
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Software Engineer-Developer, Phantom Works Weapons (Experienced or Senior)
Boeing

Saint Charles, MO*On-Site


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