Senior Software Engineer

Johns Hopkins Applied Physics Laboratory•Laurel, MD

17d•Onsite

About The Position

The Weapon Systems Engineering group at APL is seeking a Senior Software Engineer to prototype, integrate, test, and deploy next-generation software for advanced weapon and missile defense systems, simulations, and test environments. You’ll work at the intersection of embedded software, large-scale simulation, and cloud-native deployment, collaborating with a multidisciplinary team of engineers and analysts. Prior defense experience is not required; experience with real-time systems, game engines, high-performance simulations, or systems-of-systems software frameworks is highly relevant.

Requirements

Bachelor’s degree in Computer Science, Computer/Electrical Engineering, Physics, Mathematics, or related field
5+ years professional software development experience
Strong proficiency in modern C++ (C++11 or later)
Direct experience with Python 3 (tooling, scripting, data processing)
Linux development experience (compiling, debugging, shell tools, basic system admin for development)
Experience with multi-threaded/concurrent software, including: Threads, async/futures, or similar concurrency approaches, Inter-process communication (message queues, JSON, sockets, gRPC, etc.) and performance considerations
Experience with Git and branch-and-merge workflows (feature branches, merge/pull requests, code review)
Able to obtain an Interim Secret level security clearance by your start date and can ultimately obtain a Top Secret level clearance. If selected, you will be subject to a government security clearance investigation and must meet the requirements for access to classified information. Eligibility requirements include U.S. citizenship.

Nice To Haves

Master’s degree or higher in CS, CE/EE, Physics, Math, or related field
Embedded C/C++ or in-flight/real-time software experience
Experience with AFSIM, EADSIM, or similar simulation frameworks (game engines, robotics simulators, custom modeling)
Hands-on experience with Docker and/or Podman
Experience deploying/operating services on Kubernetes (e.g., Rancher, OpenShift)
Deep experience with CMake and/or Conan
Practical experience with GitLab CI/CD (authoring and maintaining pipelines)

Responsibilities

Provide technical expertise for design and implementation of mission-critical software or software architectures across: In-flight / tactical software using a modular open systems architecture (MOSA), Modeling and simulation (including AFSIM and similar frameworks), Systems-of-systems and Live, Virtual and Constructive (LVC) test environments
Develop, build and deploy simulations for: Containerized / Kubernetes environments, High-Performance Computing (HPC) environments (e.g., SLURM)
Contribute to DevSecOps and GitLab-based workflows
Provide technical leadership, mentor others, and collaborate across disciplines