Software Engineer

APEX TK LLC; Huntsville (AL); On-site; USD 120,000 - 180,000; Full time

Job summary

APEX TK LLC is seeking a Software Engineer to support the Missile Defense Agency Next Generation Software Office. You will advance on-demand, cloud-based software for system-of-systems development, integration, and testing, applying engineering rigor in both team and independent settings.

The role emphasizes design, development, and management of software libraries, cloud architectures, and cloud-based testing in HWIL environments, with a strong focus on AI tooling and secure DoD software

Qualifications

• Active Secret clearance required.
• Masters degree in a STEM field with 12+ years missile defense or related DoD program experience.
• Design, development, and management of software libraries and cloud-based architectures.
• Experience in hardware-in-the-loop and cloud-based testing for software delivery.
• Experience in API interfaces and interface control documents for Cloud/HWIL environments.
• Experience in AI development and tooling.
• Ability to work independently or lead teams with engineering rigor.

Responsibilities

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

Skills

Active Secret clearance

Leadership/Team management

AI development/tooling

Cloud-based software development

Independent/problem solving

Education

Masters degree in STEM with 12+ years DoD experience

Tools

Docker

Kubernetes

AWS

Azure

Terraform

Ansible

Git

Job description

General Overview

APEX TK is looking for an amazingly talented 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.

What You'll Be Doing:

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

What Required Skills You'll Bring:

• 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.

What Desired Skills You'll Bring:

• Cloud and Containerization: Practical experience with software containerization concepts (e.g., Docker, Kubernetes, AWS, Azure) and migrating legacy enterprise applications to cloud-native architectures.
• Agile and DevSecOps: 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.