Senior Software Engineer (Mission-Critical Systems) - TOP SECRET Clearance w/SCI Eligibility - (24681) Share this job as a link in your status update to LinkedIn. Job Title / Level Senior Software Engineer (Mission-Critical Systems) - TOP SECRET Clearance w/SCI Eligibility Clearance Required? Top Secret/SCI Location: Arlington, VA 22204 US Washington, DC 20032 US (Primary) % Travel 0 - 10% Job Description AMERICAN SYSTEMSis seeking a seasonedSenior Software Engineerwho is passionate about building robust, scalable systems to supportdata-driven applicationsandmission-critical operations. Join our team and leverage your expertise insystem architecture,back-end development, andadvanced analyticsto deliver impactful solutions that enhanceour government customers' decision-makingin theNational Capital Region. As a Senior Software Engineer you will: + Work acrosscloud and on-premises environmentsusing the latest tools and technologies. + Shape system architectureand influence project outcomes with your expertise. + Receive robust benefits package that includesEmployee Stock Ownership Plan (https://vimeo.com/729673832/55ff22ab92) ! + Be a part of anempowered accountability culturewhere eachemployee-ownerhas a meaningful stake in the future success and growth of the company. What You'll do as a Senior Software Engineer: + Design, implement, and maintainscalable software systemsto support data-driven applications and mission-critical workflows. + Develop and optimizeback-end solutionsusing C#, ASP.NET, and SQL for managing large datasets and complex processing. + Collaborate with Web Application Developers to integrate front-end interfaces with robust back-end infrastructures. + Architect and deploy systems to streamlinedata collection, processing, and storageacross cloud and on-premises environments. + Ensure high system performance, reliability, and scalability through effective code design, testing, and optimization. + Analyze technical requirements and translate them into scalable solutions aligned with business objectives. + Support system updates, configuration, and troubleshooting inLinux (RHEL)environments. + Implement security best practices in compliance withDoD standards, ensuring systems are resilient against potential threats. + Work withinAgile development teamsto deliver high-quality solutions efficiently. Job Requirements What You Bring to the Team: + Active TS/SCI clearancewith SCI eligibility (required). + Bachelor's in Computer Science, Information Systems, or a related field (or equivalent experience). + 7+ yearsof IT experienceand 5+ yearsin software engineering or back-end development. + CurrentSecurity+ CEor equivalent DoD 8140 IAT Level II certification (https://f.hubspotusercontent10.net/hubfs/9314269/WillcoTech\_DoD-8140-Baseline-Cert.pdf?hsCtaTracking=8ad7b0ae-fe3f-4c5a-980b-3b8f979e379c%7C27c8ce70-b1fb-46f0-8b8b-d9eb7f13494a) + Strong proficiency inC# and SQL(required). + Experiencedesigningandimplementing scalable system architectures. + Familiarity with data transformationprocessesandtools for large-scale analytics. + Strong knowledge ofAgile development practices(e.g., Scrum, XP). + Experience troubleshooting and maintainingLinux systems (RHEL). Enhance Your Impact with These Skills! These skills are not required but can help you stand out: + Experience working withdata visualization tools(e.g., Tableau, Power BI). + Familiarity withAtlassian tools(e.g., Jira, Confluence). + Knowledge offront-end frameworksorlanguagesto collaborate effectively with Web Application Developers + Proficiency in additional programming languages likePython or Java. + Exposure tocloud technologiesand environments such as AWS or Azure. AMERICAN SYSTEMS is committed to pay transparency for our applicants and employee-owners. The salary/hourly range for this position is$160,000 - $180,000. Actual compensation will be determined based on several factors permitted by law. AMERICAN SYSTEMS provides for the welfare of its employees and their dependents through a comprehensive benefits program by offering healthcare benefits, paid leave, retirement plans (including ESOP and 401k), insurance programs, and education and training assistance. Who We Are: Founded in 1975, AMERICAN SYSTEMS (https://www.youtube.com/watch?v=jhjbcfWTEMM) is one of the largest employee-owned companies in the United States. We are a government services contractor focused on delivering Strategic Solutions to complex national priority programs with 100+ locations worldwide. Through our focus on quality, strong cultural beliefs and innovation we deliver excellence every day. Company Awards: + Forbes National Best Midsize Companies + Energage National Best Workplaces, National + Washington Post Best Workplaces Veteran Hiring Awards: + U.S. Department of Labor Hire Vets Medallion + BEST FOR VETS by Military Times + TOP 10 MILITARY FRIENDLY COMPANY by MilitaryFriendly.com EOE Minorities/Women/Disabled/Veterans/Gender Identity/Sexual Orientation