Software Developer (Systems Software)

Chantilly, United States | Posted on 01/22/2026 Level of Position Senior-level (6-10 years) Job Type Full time Clearance TS/SCI Full Scope Polygraph City Chantilly Country United States Job Description Requirements Mandatory Requirements: Candidate must have an active TS/SCI with a Polygraph Bachelor’s Degree in Computer Science, InformationTechnology, or other related technical discipline, or the equivalentcombination of education, technical training, or work/military experience Minimum five (5) years or relevant degree plus five (5) years ofdemonstrated cybersecurity expertise. Experience d eveloping classification tools using C, C++,Visual Basic, .Net for MS Office and MS Web Office. Experiencewith Tauri and Rust Experienceprioritizing work for Sprint cycles Experience developing classification tools using scripts and web services. Experience conducting softwarecompatibility tests with programs, hardware, and operating systems. Experience developing testing programsthat address areas such as database impacts, software scenarios, regressiontesting, negative testing, error or bug retests, or usability. Experience designing or developing automated test scripts. Experience with the following software, tools, and processes: Lotus Notes JAVA .Net XML C / C++ HTML Python CSS Web software Visual Basic Desktop software Windows Microsoft Office products DevOps CLOUD (please specify which platform) Unix Multiple security domains Automated testing tools (please specify) Classification marking tools/software Sponsor’s standard operational environment toinclude desktop, servers, and peripherals #J-18808-Ljbffr