ASRC Federal Agile Decision Sciences is a premier provider of systems engineering, software engineering, system integration and project management services for real-time, mission-critical defense systems. We are seeking highly motivated Software Engineers to support the development and sustainment of the U.S. Missile Defense Agency Ground-Based Midcourse Defense (GMD) anti-ballistic missile system project in Huntsville, AL. This position requires on-site work to be performed in Huntsville, AL. There are no remote work options. As a Principal SW Developer for the GMD Weapon System (GWS) Architecture and Delivery (A&D) SPA SIM team you will work in a collaborative environment on internal model framework development, internal tactical to model conversion, supporting application development and translation of coding languages for modernization efforts. On occasion you will work to support deliverable documentation of the models developed after performing a verification and validation effort. Our highly skilled engineers are committed to delivering customer-focused results for our clients and put the latest software and applications to use. Want to help advance our nation's critical defense initiatives? Join our diverse team of software experts, and you'll be empowered to contribute to the success of our government's most important missions with the latest emerging technology and full Software lifecycle services. Benefits of Affiliation at ASRC Federal... As our Employee and the foundation of our success, we take care of you so that you can take care of our customers. Highlights of our comprehensive Rewards and Benefits Offerings include health plans with different levels of deductible, co-insurance and domestic partner coverage to fit you and your family needs; life, disability, financial, and retirement benefits, as well as paid leave (4 weeks parental, 3 weeks military, PTO and 9 Core 2 Floating Holidays ); career growth and education assistance; work-life programs (telework and 9/80 schedule), our rewards and recognition program to acknowledge employees for their service and performance and more... * Active Secret Clearance and U.S. Citizenship. * Bachelor's Degree in related STEM field and 8-10 years of related experience. Or a Master's degree in a related STEM field and 8 years of related experience. * Recent and proficient experience in C , GoLang, Cython, Bash, Javascript, SQL, MongoDB * Recent Experience in GMD GS/GWS Model Development * Recent Experience in developing code in a Dev Ops environment using Bitbucket or GitHub * Recent Experience in an Agile environment * Recent Experience in both Windows and Unix OS environments * Demonstrated Communication skills * Must be able to support an in-person / closed-area work environment. Preferred Qualifications: * Computer Science Bachelor's Degree * Experience with Ada, MATLAB, Rust * Experience with Integrated Risk Management * Experience with requirements development/collaboration * Exposure to Stimulation and Simulation Software