Principal Software Engineer

Company : Modern Technology Solutions Inc

Job Description - Principal Software Engineer

MTSI is looking for a talented Principal Software Engineer to join our team! In this role you will provide support to the Missile Defense Agency Next Generation Software Office to accelerate and modernize the development, integration, and delivery of resilient and secure Missile Defense System software.

Job Responsibilities

Provide technical and engineering analysis to support development of on-demand and cloud-based software for system of system development, integration, and testing.

Required Qualifications

US Citizenship and an active Secret clearance.
Masters degree in a STEM field with 12+ years working on missile defense-related or other complex, large DoD program/project.
Design, development, and management of software libraries and Cloud-based software architectures and requirements.
Experience in hardware in the loop and cloud-based testing to support software development and delivery.
Experience in management and review of application programming interfaces and interface control documents and enabling software utilized in Cloud-based and HWIL environments.
Experience in artificial intelligence development and tooling and agentic operations.
Ability to works independently, as a team member, or leading teams/ tasks, applying engineering rigor to solve engineering/ scientific problems.

Preferred Qualifications

Practical experience with software containerization concepts (e.g., Docker, Kubernetes, AWS, Azure) and migrating legacy enterprise applications to cloud-native architectures.
Strong working knowledge of Agile and Lean software development principles, particularly within a secure DoW DevSecOps framework.
Infrastructure as Code (IaC): Knowledge of or direct experience deploying IaC tools (e.g., Terraform, Ansible) to establish reproducible, auditable, and secure cloud environments.
Experience using modern configuration management and version control platforms (e.g., Git) to enforce policy-as-code, baseline management, and compliance configurations.
Top secret clearance or the ability to qualify for one.

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Principal Software Engineer

Job Description - Principal Software Engineer

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