Lead Engineer, Legacy Software Baseline

United States Digital Space LLC; United States; Remote; USD 140,000 - 190,000; Full time

Job summary

United States Digital Space LLC is seeking a Lead Engineer for Legacy Software Baseline to sustain and modernize C2SET/AFMSTT legacy models and interfaces. The role emphasizes safeguarding existing simulations and training artifacts while enabling seamless integration with modernized systems across cloud-enabled environments.

The position requires experience with legacy M&S systems, cloud-based services, and coordinating urgent software changes, with a focus on transition engineering and

Qualifications

• Demonstrable experience developing and sustaining C2SET/AFMSTT or similar military M&S systems.
• Experience with cloud-based services and/or RESTful architectures, plus at least 2 years of military mission planning/operations with AOCs.
• Extensive experience coordinating urgent software changes, integrations, and support for legacy architectures.
• Familiarity with transition engineering, artifact migration, and legacy documentation practices.

Responsibilities

• Lead sustainment, enhancement, and operational integration for C2SET/AFMSTT legacy models, systems, and software artifacts.
• Maintain, update, and transition legacy simulation, training, and stimulation systems, delivering critical changes and urgent fixes.
• Ensure continuity of legacy development and support, including handoff to modernization teams and documentation (GitLab, CR/DR, fielding, federation).
• Architect and guide legacy ASCCE and Federation integration support for interconnected M&S environments.
• Ensure legacy operational sustainment of all training, simulation, and stimulation artifacts.

Skills

C2SET/AFMSTT

Cloud services

RESTful architectures

Military simulation

Urgent software changes

Tools

GitLab

Job description

Position Title: Lead Engineer, Legacy Software Baseline

Location: REMOTE (U.S)

Clearance: Secret

SUMMARY: The Air Force C2SET (Command and Control Simulation, Emulation, and Training) program delivers advanced constructive M&S capabilities to support realistic operational training, scenario analysis, and decision support for Air Operations Centers (AOC) and Joint/Coalition warfighters. Through agile, DevSecOps-driven sustainment and modernization, C2SET absorbs and replaces legacy AFMSTT systems, integrates with Air, Space, and Cyberspace enterprise environments, and advances the state of theater-wide constructive warfare models—including AI/ML-based analysis and rapid response to evolving missions. The effort involves enhancement, fielding, and sustainment of complex software suites across cloud, containerized, and secure environments worldwide, directly supporting the training and readiness of U.S. and coalition commanders \"This includes, but is not limited to: The development, maintenance, and modernization of M&S software that runs scenarios capable of handling operationally realistic complex theater warfare models... The simulation and stimulation of AOC WS and other JFACC and coalition applications as required.\" The scope of this work will cover C2SET development, maintenance, sustainment, modifications, model development, operational changes, security software changes, certifications, test, fielding, installation, training, data support, help desk, operational support, and reach back activities.

This position is contingent upon contract award. Anticipated start date is 1 November.

Summary of Duties:

• Lead sustainment, enhancement, and operational integration for C2SET/AFMSTT legacy models, systems, and software artifacts.
• Maintain, update, and transition legacy simulation, training, and stimulation systems, delivering critical changes, user priorities, and urgent fixes as needed.
• Ensure continuity of legacy development and support, including transition handoff/support to modernization teams and documentation (GitLab, CR/DR, fielding, federation, etc.).
• Architect and guide legacy ASCCE and Federation integration support for interconnected M&S environments
• Ensure legacy operational sustainment of all operational training, simulation, and stimulation artifacts.

Qualifications & Experience:

• Demonstrable experience developing and sustaining C2SET/AFMSTT or similar military M&S systems, including models, systems, and interfaces.
• Experience with cloud-based services and/or RESTful architectures, as well as at least 2 years of military mission planning/operations and simulation training with AOCs.
• Extensive experience coordinating urgent software changes, integrations, and support for legacy architectures.
• Familiarity with transition engineering, artifact migration, and legacy documentation practices.

Why join the company?

At the company, you'll have the opportunity to work alongside experienced professionals supporting some of the nation's most important defense and government missions. We offer challenging work, career growth opportunities, a collaborative culture, and the ability to make a real impact. Our team members are empowered to innovate, solve complex problems, and contribute to mission success while advancing their professional development. Join the company and be part of a team dedicated to excellence, service, and the mission.

Information Assurance and Information System Security are the responsibility of each and every the company employee. All the company employees shall comply with the company Information Assurance and Information Management System policies and procedures. Additionally, employees with access to Government systems and information will comply with all Government laws, regulation, instructions and rules. the company employees will do everything within their abilities to safeguard information and systems, to include issued/authorized devices such as computers, cellular phones, notebooks, tablets, iPads, etc. In the event of an information systems security incident, the company employees will immediately report the situation to one of the the company corporate members. At the company, we value diversity and have worked diligently to create a workforce that reflects this. As an Equal Opportunity Employer, we are committed to providing an environment based on mutual respect which is free of discrimination and harassment. the company's employment opportunities are available to all teammates and applicants, without regard to race, color, religion, sex, pregnancy, national origin, age, physical or mental disability, marital status, sexual orientation, gender identity, gender expression, genetic information, military and veteran status, and any status protected by federal, state, and local laws. Diversity, inclusion and genuine respect for each other are key contributors to our success as an employer.

[Equal Opportunity Employer]