Senior Software Engineer Jobs

Senior Software EngineerAre you a seasoned software engineer who enjoys building high-performance systems, working close to the hardware, and solving sophisticated problems with modern tools? Do you want to apply your experience to challenging problems within national defense? If so, we're looking for someone like you to join our team at APL! 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. As a Senior Software Engineer you will...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 environmentsDevelop, build and deploy simulations for:Containerized / Kubernetes environmentsHigh-Performance Computing (HPC) environments (e.g., SLURM)Contribute to DevSecOps and GitLab-based workflowsProvide technical leadership, mentor others, and collaborate across disciplinesQualifications You meet our minimum qualifications for the job if you possess...Bachelor's degree in Computer Science, Computer/Electrical Engineering, Physics, Mathematics, or related field5+ years professional software development experienceStrong 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 approachesInter-process communication (message queues, JSON, sockets, gRPC, etc.) and performance considerationsExperience with Git and branch-and-merge workflows (feature branches, merge/pull requests, code review)Are 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.Special Working Conditions: Occasional travel to sponsor, contractor, or government facilities for meetings and reviews. Occasional support of test events involving extended hours, travel aboard ships and travel to field sites. You'll stand out if you have one or more of the following:Master's degree or higher in CS, CE/EE, Physics, Math, or related fieldEmbedded C/C++ or in-flight/real-time software experienceExperience with AFSIM, EADSIM, or similar simulation frameworks (game engines, robotics simulators, custom modeling)Hands-on experience with Docker and/or PodmanExperience deploying/operating services on Kubernetes (e.g., Rancher, OpenShift)Deep experience with CMake and/or ConanPractical experience with GitLab CI/CD (authoring and maintaining pipelines)Minimum Rate $105,000 Annually Maximum Rate $290,000 Annually