Sr. Data Scientist

ECS Federal LLC

DC

JOB DETAILS
SKILLS
Artificial Intelligence (AI), Best Practices, Cloud Computing, Consulting, Data Science, Data Sets, Elasticsearch, Leading Edge Technology, Machine Tool, Modeling Languages, Performance Management, Professional Services, Requirements Management, Search Engine Optimization (SEO), Semantic Search, System Operations, Trend Analysis, Use Cases, User Interface/Experience (UI/UX), Vector Based
LOCATION
DC
POSTED
30+ days ago

Everforth ECS is seeking a Sr. Data Scientist to join our team in Arlington, VA. This position is contingent upon contract award.

Are you passionate about building intelligent search and retrieval systems and applying GenAI to solve real-world data challenges? Join ECS, a leading provider of cloud, AI, data, and enterprise transformation 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 to improve relevance, accuracy, and decision-making outcomes.

We are seeking a Data Scientist focused on Search, RAG, and GenAI to support ECS's Professional Services. 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. You will play a key role in shaping search architectures, advising on best practices, and applying advanced AI techniques to enterprise-scale data sets.

This role offers the opportunity to work with cutting-edge GenAI technologies while directly influencing customer success across diverse environments and use cases.

Key Responsibilities

  • Design, implement, and optimize intelligent search solutions using Elasticsearch, including lexical, semantic, and vector-based search techniques.
  • Apply Retrieval-Augmented Generation (RAG) patterns to enhance LLM-driven applications with accurate, relevant, and contextual enterprise data.
  • Consult with customers to understand business objectives, data landscapes, and search challenges, translating requirements into effective AI-powered search strategies.
  • Build and refine embedding strategies, indexing approaches, and query workflows to improve relevance, precision, and recall.
  • Evaluate and integrate LLMs and GenAI capabilities into enterprise search and analytics use cases.
  • Collaborate with data, AI, and platform teams to align GenAI solutions with existing systems and operational workflows.
  • Provide strategic recommendations to improve search performance, result explainability, and overall user experience.
  • Lead knowledge-sharing sessions, technical workshops, and enablement activities related to GenAI, RAG, and advanced search techniques.
  • Serve as a trusted advisor for customers and internal stakeholders on emerging trends in AI-powered search and retrieval.
  • Stay current with advancements in Elasticsearch, GenAI, LLM tooling, and search relevance methodologies.

About the Company

E

ECS Federal LLC

ECS was founded in 2001 by experienced IT professionals with a commitment to quality processes, people and performance. Led by our Chairman, Roy Kapani, and an experienced executive leadership team, ECS provides our customers with solutions and services that support their critical needs and further mission objectives. This commitment has paved the way for expansive growth, year over year.

ECS gained market share in 2011 in the Department of Defense and Federal spaces through both organic and acquisition growth. In May, ECS completed its first strategic acquisition with the purchase of OAK Management, Inc., a leading provider of marine environmental services, ship systems engineering, maritime consulting and platform acquisition management. The OAK acquisition kicked off ECS’ intention to add tactical acquisitions as a part of its long term strategy to supplement and expand upon organic growth and to build enterprise value. ECS closed out 2011 with the acquisition of Paradigm Technologies, Inc. The Paradigm transaction added approximately 200 employees to ECS’ existing 900+ employees. Paradigm also added new Defense clients for ECS, including the Missile Defense Agency, the Navy’s Program Executive Officer for Integrated Warfare Systems, the United States Marine Corps, and the U.S. Marshals Service.

In 2012, ECS completed the acquisition of iLuMinA Solutions, Inc. iLuMinA brings large-scale Enterprise Resource Planning (ERP) software implementation and infrastructure design and development to ECS’ expanding capabilities.

ECS will continue to invest in corporate infrastructure and quality processes as we grow and enhance our ability to offer professional excellence to both our customers and our employees.

COMPANY SIZE
50 to 99 employees
INDUSTRY
Staffing/Employment Agencies
FOUNDED
2000
WEBSITE
http://www.ecs-federal.com/