Description: PDS Tech, Inc is seeking a candidate for the Aerospace Engineer -Top Secret Clearance position located in Dulles, VA. Perform spacecraft attitude control systems analysis, test, design and/or development. Run detailed spacecraft simulations using in house simulations. Design spacecraft attitude and orbit determination and control loops using MATLAB. Design various Guidance, Navigation and control algorithms using various tools, including MATLAB and C/C++ compilers. Develop subsystem specifications, develop GNC Flight software, test GNC FSW. Develop and test operations scripts. Enhance or extend simulator capabilities. Document results and create presentation materials. Qualifications: Top Secret/SCI Clearance REQUIRED UP FRONT. A Bachelors Degree (BA/BS) in Computer Science, Engineering, Math, Physics. Four years of related experience is required. Experience designing and/or analyzing spacecraft Guidance Navigation & Control subsystems. Expertise with using MATLAB. Experience with coding in C or C++. MS is preferred with 2-3 years spacecraft attitude control design experience.