Senior Software & Security Engineer

We are looking for a senior software engineer who can operate comfortably across software development, cloud infrastructure, and security compliance-and take ownership of it.

This is not a pure development role, and it's not a pure security role. It's a hybrid position where you will drive both technical delivery and NIST Risk Management Framework (RMF) / Authority to Operation (ATO) execution for a cloud-based application.

You'll work directly with engineers and clients, ensuring the system is not only built correctly-but also secure, compliant, and ready for authorization.

What You'll Be What You Will Be Doing

You'll play a central role in both engineering and compliance.

• Lead the RMF/ATO lifecycle, including documentation, control implementation, and audit readiness
• Design and guide development and enhancement of a secure, cloud-native application
• Work closely with engineers to ensure security is built into the development process, not added later
• Support and mentor junior engineers, helping them grow into hybrid roles
• Collaborate directly with clients and stakeholders to navigate compliance requirements
• Oversee deployments in cloud environments using Docker/Docker Swarm/Kubernetes
• Help integrate security into CI/CD pipelines and DevSecOps practices

This role requires someone who has already worked in this space-not just studied it.

• 7+ years of experience in software engineering, cybersecurity, or a related field
• Demonstrated experience with RMF / ATO execution (not just exposure)
• Strong understanding of NIST frameworks (e.g., 800-53)
• Experience building applications using:

• Node.js / TypeScript / JavaScript
• C#
• Modern front-end frameworks (Vue.js or similar)

• Experience working in AWS and/or Azure environments
• Solid understanding of databases (PostgreSQL, MongoDB, Redis)
• Hands-on experience with Docker and containerized deployments
• Ability to communicate effectively with both technical teams and clients

What Will Set You Apart

• Experience working in federal, DoD, or regulated environments
• Background in leading RMF/ATO efforts or accreditation strategy
• Experience with microservices architectures
• Familiarity with DevSecOps tooling and automated compliance

Clearance Type: Able to obtain a security clearance Position Type: Full time

Applied Training Solutions, LLC is a leading simulations company providing innovative systems, products, and solutions to government and commercial customers.