Staff Data Engineer (TS/SCI with CI Polygraph) {S}

Staff Data Engineer (TS/SCI with CI Polygraph) {S} Job Category: ENG Requisition Number: STAFF003251 Posted : February 26, 2026 Full-Time Locations Showing 1 location Stratagem Group KoP 900 E 8th Ave King Of Prussia, PA 19406, USA ARKA Group L.P. (“ARKA”) is an advanced technologies company serving the U.S. military, intelligence community, and commercial space industry delivering next-generation solutions to support the national security space enterprise. Built on more than six decades of excellence, ARKA brings modern approaches and a culture of innovation to the challenges of today. Join the ARKA team to learn how Beyond Begins Here. Discover your next career opportunity now! Position Overview: We are looking for a Staff Data Engineer/Scientist looking for new challenging problems. You will support the development of AI/ML algorithms in a multitude of disciplines from large language models, natural language processing, and time-series predictive analytics. Additionally, we have a team of excellent researchers and software developers who are eager to mentor and teach their craft. We have multiple positions available and welcome all experience levels! We offer generous relocation benefits for eligible candidates. In support of work/life balance, many positions are available for a flexible schedule within the pay period. Ask us about the opportunity for flex scheduling if that’s of interest to you. Responsibilities: Lead and mentor an interdisciplinary team consisting of both developers and researchers. The team's core focus is the implementation of ETL pipelines to support a variety of AI/ML and LLM solutions, which in turn address a broad range of customer challenges. Assembles large, complex sets of data to support AI/ML algorithm implementation Builds required infrastructure for optimal extraction, transformation and loading of data from various data sources Curate and maintain data that is stored in support of metrics and evaluation Implement Artificial Intelligence/Machine Learning algorithms Identifies, designs, and implements internal process improvements including re-designing infrastructure for greater scalability, optimizing data delivery, and automating manual processes Using Agile methodologies to develop software. Required Qualifications: B.S. in data science, AI/ML, computer science, or related field Minimum six (6) years of relevant experience as a Data Engineer/Scientist. Experience developing data pipelines and normalizing data with canonical Python packages (e.g. NumPy, Pandas, Polars) Experience contributing on a team using version control (e.g. git, GitLab, Bitbucket) Active TS/SCI U.S. Government Security Clearance with a recent Counter Intelligence Polygraph (CI) Preferred Qualifications: M.S. or PhD in Data Science, AI/ML, Computer Science, or related field Experience with Gitlab, DevSecOps utilizing test-driven development, containers (e.g. Docker, Docker Compose), cloud services (e.g. AWS), tools for distributed computing (e.g. Spark, PySpark) Active TS/SCI with a recent Full-Scope Polygraph (FSP) Experience leading an interdisciplinary team of researchers and software developers Experience with any of the following: Large Language Models and experience identifying ways to incorporate them into new domains and applications Applying Transformer-based architectures to domains in other areas outside of Natural Language Processing (NLP) such as computer vision Natural Language Processing algorithms such as BERT Reinforcement learning and familiarity with Gymnasium Gym, OpenEnv, TorchRL, RLlib, and Stable Baselines Applying clustering algorithms and/or deep neural networks to real life problems Implementing tracking and pattern-of-life algorithms Experience with GenAI Ops techniques (e.g. LLM-as-a-judge) and frameworks (e.g. LangFuse, MLFlow, Arize Phoenix) Experience with Machine Learning libraries and frameworks such as HuggingFace and LangChain Experience with Linux Familiarity with using AWS cloud computing resources such as EC2, S3, Lambda, Bedrock, etc. Experience with any of the following additional languages: Java, C++, Rust, Go, and/or C# Experience implementing algorithms on the GPU in Python or C++ using CUDA and other CUDA libraries Experience in application deployment, virtualization, and containerization (e.g. Podman, Docker, Kubernetes, Rancher) Experience shaping and writing proposals Location: King of Prussia, PA Situated less than an hour outside of Philadelphia and hosting the largest mall on the east coast, King of Prussia offers the urban feel sought in the city, while also giving opportunities to experience the beauty and history found only in Pennsylvania. What We Offer: Company contributions to qualified HSA accounts 401k retirement plan with industry leading company contributions 3 weeks of vacation accrual per year plus time off for sick leave and unscheduled life events 13 paid holidays Upfront tuition assistance for approved degree programs Annual bonus program based on company and employee performance Company paid life insurance, AD&D, Short-Term and Long-Term disability insurance 4 weeks paid Parental Leave Employee assistance program (EAP) This job operates in a professional office environment. While performing the duties of this job, the employee routinely is required to use hands to keyboard, communicate, listen to, and interpret instructions and remain stationary for extended periods of the time. This would require the ability to move around the campus and occasionally move/lift items weighing up to 25 lbs. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions of the job. Applicants are invited to apply for a reasonable accommodation to perform the essential duties of the job. To apply, send a request to View email address on click.appcast.io or contact View phone number on click.appcast.io and press 2 for Human Resources. ITC & Security Clearance Requirements: This position requires an active TS/SCI U.S. Government Security Clearance with a recent Counter Intelligence Polygraph (CI). Visa Restrictions: No visa sponsorship is available for this position. Pre-employment Screenings: Employment with any ARKA companies in the U.S. is contingent upon satisfactory completion of several pre-employment requirements to include a credit check, background check, and drug screen. Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor. #J-18808-Ljbffr