Principal AI/ML Engineer (Large Language Model) (TS/SCI) {S}
ARKA Group LP
Principal AI/ML Engineer 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: The Principal AI/ML Engineer will support the development of AI/ML algorithms in a multitude of disciplines from object detection/classification, natural language processing, reinforcement learning, and large language models. 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: Apply Large Language Models (LLMs) to a variety of applications within remote sensing such as tasking collections, identifying gaps in collection plans, analyzing patterns of life, and more. Fine tune foundation models and building adaptors for new applications (llama factory, PEFT) Apply retrieval augmented generation (RAG) techniques to data to populate and query vector databases (e.g. Weaviate) Build custom applications with LLM frameworks such as LangChain, DSPy Deploy LLM solutions across cloud-based and local resources using kubernetes (llama.ccp, vllm etc) Analyze large multi-domain datasets such as images, text and/or graph data, to identify statistically relevant features to build models that provide analysts with actionable data Review relevant publications to understand and apply cutting edge concepts to defense and commercial applications Interface with both internal and external leadership to communicate technical status Required Qualifications: BS in machine learning, computer science, mathematics, or related fields. 10+ years of experience, preferably in software development or as a data scientist with 2+ years of building LLM applications using some of the following: Fine-tuning foundational models Steering Techniques (e.g Sparse auto encoders, representation tuning) Building adapters to use foundational models (e.g. PEFT, llama factory) Prompt engineering techniques / Inference time techniques (e.g. chain of thought, tree of thoughts, etc.) Using Retrieval Augmented Generation techniques to populate and query vector databases (e.g. Weaviate, pinecone) Using LLM Frameworks (e.g. LangChain, DSPy) Using AI APIs ( e.g AWS Bedrock, OpenAI) Using LLM deployment frameworks (eg llama.cpp, vllm, tgi) Developing UIs with ReAct Experience leading an interdisciplinary team of researchers and software developers and working with a program manager to define project scope and schedule to ensure we meet project milestones as defined by our customers Experience with Python and data science / machine learning libraries (e.g. PyTorch, TensorFlow, Keras, OpenCV, NumPy, Pandas, Polars, scikit-learn, etc.) Active TS/SCI U.S. Government Security Clearance Preferred Qualifications: MS or PhD in machine learning, computer science, mathematics, or related fields. Experience leading an interdisciplinary team of researchers and software developers Experience with any of the following Computer Vision domains: Large Language Models and experience identifying ways to incorporate them into new areas and applications Applying Transformer-based architectures to domains in other areas outside of Natural Language Processing (NLP) such as computer vision Object detection algorithms such as YOLO and Faster-RCNN Natural Language Processing algorithms such as BERT Generative Adversarial Networks and Variational Autoencoders Reinforcement learning and familiarity with Gymnasium Gym, 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 Machine Learning libraries and frameworks such as HuggingFace and LangChain Experience with Computer Vision libraries such as OpenCV, Nerfstudio, FiftyOne, etc. Experience with Linux Familiarity with using AWS cloud computing resources such as EC2, S3, Lambda, 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 with implementing tracking and pattern-of-life algorithms Experience in application deployment, virtualization, and containerization (e.g. Podman, Docker, Kubernetes, Rancher) Experience working with various Remote Sensing datasets (e.g. EO/OPIR/SAR images, passive RF, etc.) 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: Comprehensive medical/vision/dental insurance packages 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) EHS/Environmental Requirements: 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. 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. Possible is discovered by those who go beyond. At ARKA, we're there every day with technology grounded in reality but reaching beyond the sandbox where ideas take off. Others think outside the box. We think beyond the globe. We push the mission beyond the screen, engineering beyond the ordinary. We bring technology and expertise together for solutions that define the new beyond in every space. Beyond Begins Here. ARKA Group LP
$108.4k - $227.5k
Job Title: Staff AI/ML Engineer (Large Language Model) Job Category: Science Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * The Opportunity...LanguageFull timeContract workWork experience placementLocal areaFlexible hours- ...This position is for a Staff AI/ML Engineer looking for new challenging... .../classification, natural language processing, time series prediction... ...learning, and large language models. We offer generous relocation... ...GitLab, Bitbucket) Active TS/SCI U.S. Government Security Clearance...LanguageTemporary workWork at officeVisa sponsorshipRelocation packageFlexible hours
$108.4k - $227.5k
Job Title: Staff AI/ML Engineer Job Category: Science Time Type... ...Clearance Required to Start: TS/SCI with Polygraph Employee... .../classification, natural language processing, time series prediction... ...learning, and large language models. Responsibilities: Implement...LanguageFull timeContract workWork experience placementLocal areaFlexible hours$91.2k - $169.4k
...ExemptShift: 1Clearance Prior to Start: TS/SCIFinal Clearance: TS/SCIPay... ...some of the worlds’ hardest engineering problems. Our culture... ...problems or questions in computer language for solutions by means of data... ...with ability to obtain TS/SCI clearance.• Ability to obtain...LanguageFull timeTemporary workFor contractorsWork experience placementCasual workFlexible hours$50 per hour
...Mission Systems (RMS) AI Hub team, within Lockheed... ...vision, natural language processing, and generative... ...pipelines, integrate large-language-model (LLM) capabilities, and... ...AI Machine Learning Engineering SeniorResponsible for... ...Technology, Engineering, AI/ML, or a related...LanguageFull timeTemporary workWork experience placementCasual workFlexible hours- ...templates to scale adoption. Required Qualifications: ~ TS/SCI Clearance ~ BS in Software Engineering or related field ~2-10 years of experience in CI/CD... ...in regulated environments (RMF/NIST controls) Large-scale software development experience, including: Agile...Flexible hours
- ...Description Job Summary The Agentic AI Software Engineer designs, develops, and deploys... ...Required Qualifications ~ Active TS/SCI U.S. Government security clearance with... ...Python and object-oriented programming languages. ~ Strong understanding of the full...Language
- Lockheed Martin in King of Prussia, PA seeks a Systems Engineer to perform technical planning, system integration, verification and validation... ...constraints are met, and applying standards such as RMF/NIST 800-53. A TS/SCI clearance is required. #J-18808-Ljbffr Lockheed Martin
$110.3k - $204.9k
...NoneFinal Clearance: TS/SCIPay Transparency... ...our software engineers to focus their time... ...questions in computer language for solutions by means... ...working on large-scale, agile software... ...and maintain a TS/SCI clearanceDesired Skills... ...Perform system analysis, modeling, simulation, and...LanguageFull timeTemporary workWork experience placementCasual workFlexible hours$110.3k - $204.9k
...: NoneFinal Clearance: TS/SCIPay Transparency: $1... ...the world’s most complex engineering problems. Our culture... ...questions in computer language for solutions by means... ...must be eligible for TS/SCI clearance, but no clearance... ...working on large-scale software projects...LanguageFull timeTemporary workWork experience placementCasual workFlexible hours- ...Summary : The Forward Deployed AI Engineer is responsible for designing, developing,... ...Development Design and maintain ontology models that represent mortgage and financial... .... Develop agent-based and large language model (LLM) solutions that support business...LanguageWork at officeLocal area
- Looking for an AI/ML Engineer who can Design and deploy AI models using AWS Sagemaker and Bedrock. Some travel to client site in Charlotte or Malvern. Please... .... Deep expertise in Python and Java programming languages. Experience with AWS Sagemaker, Bedrock, and multi-agent...LanguageLocal area
$135.7k - $251.9k
...: NoneFinal Clearance: TS/SCIPay Transparency: $1... ...mindset allows our software engineers to focus their time and... ...questions in computer language for solutions by means... ...and maintain a TS/SCI security clearanceDesired... ...Experience working on large-scale software projects...LanguageFull timeTemporary workWork experience placementCasual workFlexible hours- ...troubleshooting, supporting various technologies like Windows and Microsoft365, and documenting issues. A High School Diploma, 3+ years in helpdesk support, and an active TS/SCI clearance are essential. Competitive benefits include 401k and tuition assistance. #J-18808-Ljbffr ARKA
$95.9k - $178.1k
...ExemptShift: 1Clearance Prior to Start: TS/SCIFinal Clearance: TS/SCIPay Transparency... ...solutions to some of the worlds’ hardest engineering problems. Our culture encourages employees... ...and tools• Active Top Secret with SCI clearance • Applicants selected will be subject...Full timeTemporary workWork experience placementCasual workFlexible hours$117k - $201.25k
...Innovative Medicine is seeking a Principal Agentic Workflow & AI Engineer to help build the agentic... ...experimental outputs to models and decisions across the... ...discovery engine in a large pharma setting. As a Principal... ...discovery scientists, AI/ML scientists, and data...PrincipalFull timeTemporary workWork at officeLocal areaRemote work$164k - $282.9k
...recruiting a Director, World Model & Agentic Learning to... ...Data, Data Science & AI organization. This is a... ...or application engineering: the Generative AI Platform... ...generation. You think about large language models as reasoning... ...building and shipping AI/ML systems, with...LanguageFull timeLocal areaImmediate start$110.3k - $204.9k
...motivated, and experienced Software Engineer to join our dynamic team. This... ...or questions in computer language for solutions by means of data... ...to obtain and maintain SCI clearanceDesired Skills• Experience... ...Capability-based planning• Active TS/SCI security clearance•...LanguageFull timeTemporary workFor contractorsWork experience placementCasual workFlexible hours$135.7k - $251.9k
...ExemptShift: 1Clearance Prior to Start: TS/SCIFinal Clearance: TS/SCI w/PolyPay Transparency: $135700.00 -... ...problems or questions in computer language for solutions by means of data... ...degree in Computer Science, Software Engineering, Aerospace Engineering, Applied Physics...LanguageFull timeTemporary workWork experience placementCasual workFlexible hours$91.2k - $169.4k
...to Start: NoneFinal Clearance: TS/SCIPay Transparency: $91,200.0... ...a team member on our Software Engineering team, you can help us take on... ...the candidate to obtain a TS/SCI security clearance ***WHY JOIN... ...problems or questions in computer language for solutions by means of data...LanguageFull timeTemporary workWork experience placementCasual workFlexible hours$91.2k - $169.4k
...skilled and motivated Software Engineer to join our dynamic team. This... ...or questions in computer language for solutions by means of data... ...ability to obtain and maintain a SCI clearance.Generally has 1+ years... ...-based planningActive TS/SCI security clearance Pay InformationFull...LanguageFull timeTemporary workFor contractorsWork experience placementCasual workFlexible hours- The Senior Manager, AI & Data Engineering leads teams responsible... ...roadmap, and delivery model for enterprise data products... ...through natural language interactions.Manage platform... ..., analytics, AI/ML engineering, or related... ...technical leaders within large-scale engineering...LanguageFull timeFor contractorsWork at office
$98.5k - $206.8k
Job Title: Full Stack Software Engineer Job Category: Engineering Time Type: Full time... ...Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular... ...candidate is proficient in multiple programming languages, embraces agile development...LanguageFull timeContract workWork experience placementWork at officeLocal areaFlexible hours- Senior IT Help Desk Technician (TS/SCI CI Poly) {S} Job Category : IT Requisition Number : SENIO003226 Apply now Posted : February 10, 2026 Full-Time On-site Locations Showing 1 location Stratagem Group KoP 900 E 8th Ave King Of Prussia, PA 19406, USA ARKA Group...Full timeTemporary workWork experience placementWork at officeRemote workVisa sponsorship
$94.3k - $115.2k
...Title: JR Software Engineer Who We Are KBR Mission Technology Solutions delivers... ...requirements Generate program design language and code based on mission standards Generate... ...Required Qualifications: Active TS/SCI clearance and the ability to...LanguageContract workTemporary workLocal areaRelocation packageFlexible hours$117k - $201.25k
...currently seeking a Principal Data Scientist -... ...(Knowledge Graph Engineer) - Immunology, who... ...ontology, and graph data modeling, plus strong... ...analytics, search, and AI across Johnson and... ...experience in large-scale knowledge... ...combinators, natural language processing, and...PrincipalLanguageFull timeTemporary workLocal areaRemote work- ...and infrastructure.Collaborate with senior engineers and data scientists in feature... ...related field.5-8 years of experience in AI/ML engineering or software development.Solid... ...WorkVanguard has implemented a hybrid working model for the majority of our crew members, designed...Full time
- ...Technical Stack & Requirements: AI/ML Stack: Amazon SageMaker, AWS Bedrock.... ...Intelligence, Data Science, Software Engineering, or a related field. ~8+ years of software... ...~ Experience with Generative AI and Large Language Models. ~ Experience designing Retrieval-Augmented...Language
$115k
...searching for the best talent for a Principal Scientist, Applied AI, in Immunology Discovery, to be in... ...with enterprise AI, data science, engineering, platform, architecture, security,... ...experience with generative AI, large language models, retrieval-augmented generation, agentic...PrincipalLanguageFull timeTemporary workLocal area- ...are seeking a Machine Learning Engineering Manager to lead a high-... ...evolving Vanguard's production AI, ML, and Generative AI solutions.... ...teams to transform sophisticated models and research into reliable,... ...methodology, applied AI, and large-scale engineeringShape the future...Full time
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