Defense Software Engineer: Simulation & Missile Defense

The Johns Hopkins University Applied Physics Laboratory; Laurel (MD); On-site; USD 85,000 - 165,000; Full time

Job summary

The Johns Hopkins University Applied Physics Laboratory (APL) seeks a Software Developer to build and integrate software models of combat system elements for the Aegis Weapon System and national missile defenses, within a highly collaborative engineering team.

You will prototype algorithms, verify and validate high‑fidelity models, and help design integrated software solutions that optimize simulation workflows and deliver clear insights to sponsors.

Qualifications

• BS or MS in CS, EE, CE, Physics, Mathematics or related field.
• Fluent in modern C++ and Python.
• Proficient with software revision control tools in a DevOps environment.
• Eligible for Interim Secret clearance by start date and final clearance later; U.S. citizenship required.

Responsibilities

• Develop and prototype software models of combat system elements and algorithms for AWS and national defense.
• Integrate models with existing simulations to support concept exploration and future capabilities.
• Assist in verification and validation of high-fidelity combat system models.
• Participate in multi-functional teams to select modeling and simulation approaches.
• Architect integrated software solutions to optimize simulation workflows and analyses.
• Translate simulation outputs into clear insights for sponsors and deliver presentations.

Skills

C++

Python

DevOps

Education

BS or MS in Computer Science, Electrical Engineering, Computer Engineering, Physics, Mathematics or related field

Tools

Git

Job description

The Johns Hopkins University Applied Physics Laboratory (APL) seeks a Software Developer to build and integrate software models of combat system elements for the Aegis Weapon System and national missile defenses, within a highly collaborative engineering team.

You will prototype algorithms, verify and validate high‑fidelity models, and help design integrated software solutions that optimize simulation workflows and deliver clear insights to sponsors.