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Software Systems Engineer - Levels II & III with Security Clearance

ClearanceJobs
Boulder, CO Full Time
POSTED ON 12/31/2025
AVAILABLE BEFORE 1/31/2026
Seeking a Systems Software Engineer – Algorithms with Linux environment and software development exposure to join the Template Kinematic Estimation Library (TKEL) team. Our domain provides rewarding work that contributes to the latest advancements being made in the missile defense industry. TKEL aims to provide a common and extensible mission data processing framework that accelerates new multi-int fusion programs. The position is located in Boulder, CO – Boulder is nestled in the foothills of the Rocky Mountains, and only 25 miles from downtown Denver. Position Overview: As an Algorithm and Systems Engineer, you will be responsible for developing, analyzing, testing, and implementing extendable / reusable algorithms to improve state estimation and backend processes. Additional responsibilities will include but are not limited to providing documentation to supply tracking algorithms including observation models, propagation models, and filters / smoothers. Essential Functions: Breadth and depth in the application of mathematics to perform data analysis and algorithm development for military applications

Development and performance analysis of tracking and state estimation algorithms

Tool and prototype development using Modern C and Python

Algorithm defect tracking and resolution

Technical Documentation as required

Seeking candidates who find satisfaction in working on challenging and diverse assignments in collaborative settings across all levels. This requisition may be filled at either a Principal Software Engineer or a Sr. Principal Software Engineer level. Basic Qualifications for Principal Software Engineer or Sr. Principal Software Engineer: Principle Software Engineer (Level 3): Bachelor’s Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline preferred from an accredited university and 5 years of related experience or a Master’s degree in a STEM discipline and 3 years of related experience, or 1 year with a PhD. Senior Principal Software Engineer (Level 4): Bachelor’s Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline preferred from an accredited university and 8 years of related experience, or a Master’s degree in a STEM discipline and 6 years of experience, or 4 years with a PhD. Linux exposure and working knowledge of common utilities like grep, awk, cat head, etc. C/C ; 4 years development experience Algorithm design and state estimation experience Data analysis - Population statistics and trend identification Bridge between theoretical concepts and practical implementation Experience with numerical computing (numerical linear algebra, differential equations, optimization (combinatorial and non-linear), and statistics. Ability and willingness to travel up-to 10% to support business needs Applicants must have a active in-scope U.S. Government DoD issued Top Secret security clearance at the time of application and is required to start; with the ability to obtain and maintain an SCI. Preferred Qualifications: Strong statistical background and skills Experience in tracking and prediction algorithms, simulation, and validation Experience with multiple hypothesis tracking Experience in the numerical implementation of motion filters. Familiarity with Overhead Persistent Infrared (OPIR) and Electro-Optical Infrared (EOIR) sensors and simulations is a plus Experience with containerization

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$126,968 to $146,443
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