Sr. Data Scientist with Security Clearance
Not Disclosed•ContractorOn-site
location_on9115, Santayana Drive, Mantua, Fairfax County, Virginia, 22031, United States
ECS Federal LLC is the federal segment of Everforth, a $4B global organization with over 10,000 employees. Our nearly 3,500 professionals deliver advanced technology solutions in data and AI, cybersecurity, and enterprise transformation, serving defense, intelligence, and federal civilian agencies. Our work powers mission-critical outcomes, strengthens technology partnerships, and creates meaningful opportunities for our people. We are defined by a commitment to excellence in delivery, a culture of innovation, and an environment where talent can thrive and grow. We value attracting and developing top talent and high-performing teams, fostering a culture that is engaging, accountable, and mission-driven.
We are seeking a Sr. Data Scientist to join our team in Arlington, VA, to support ECS's Professional Services. This position is contingent upon contract award. You will play a key role in shaping search architectures and advising on best practices, applying advanced AI techniques to enterprise-scale data sets. The ideal candidate enjoys working at the intersection of data science, search relevance, and large language models (LLMs), collaborating with customers and internal teams to deliver intelligent, high-impact solutions.
In this role, you will design and optimize next-generation search and retrieval experiences using Elasticsearch, Vector Search, and Retrieval-Augmented Generation (RAG) techniques. You will consult with customers to understand business objectives and data landscapes, translating requirements into effective AI-powered search strategies. This role offers the opportunity to work with cutting-edge GenAI technologies while directly influencing customer success across diverse environments and use cases. You will also lead knowledge-sharing sessions, technical workshops, and serve as a trusted advisor for customers and internal stakeholders on emerging trends in AI-powered search and retrieval.
This position is contingent upon contract award. Candidates must be U.S. Citizens and hold an active Secret U.S. Security Clearance to be considered.
ECS Federal LLC is an equal opportunity employer and does not discriminate or allow discrimination on the basis of any characteristic protected by law. All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran, or any other status protected by applicable federal, state, or local jurisdiction law.
Meet the challenge. Make a difference with Everforth ECS!
Work model: On-site
9115, Santayana Drive, Mantua, Fairfax County, Virginia, 22031, United States
Mantua, Virginia
Master's degree or PhD in Computer Science, Data Science, or a related field. Experience with Vector, Semantic, and Lexical Search techniques. Hands-on experience designing or implementing Retrieval-Augmented Generation (RAG) solutions. Familiarity with RAG evaluation concepts and frameworks (RAGAS, faithfulness, context precision, etc.). Experience working with LLMs and GenAI frameworks and tooling. Familiarity with AgentAI Builder or agent-based AI architectures. Experience applying GenAI to enterprise search, observability, or security data. Elastic Certified Engineer or related Elastic certifications. Experience with Elasticsearch Enterprise Search use cases. Familiarity with complementary search technologies (OpenSearch, Solr, Lucene). Understanding of cybersecurity, observability, or operational data domains. Experience working in consulting, professional services, or managed service environments. Strong collaboration skills with the ability to mentor and guide team members. Exposure to Agile or project-based delivery models.
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Skills: Elasticsearch, Vector Search, Retrieval-Augmented Generation, Rag, Genai, Large Language Models, LLMS, Aws, Azure, GCP.
Education: Bachelor's degree in Computer Science, Data Science, or related field (or equivalent experience); Master's degree in Computer Science, Data Science, or related field; PhD in Computer Science, Data Science, or related field.