

Data Scientist Sr
โญ - Featured Role | Apply direct with Data Freelance Hub
This role is for a Senior Data Scientist focused on GenAI/NLP, with a 12+ month remote contract based in Reston, VA. Requires 6-8 years of experience, expertise in NLP and LLMs, SQL, Python, and AWS.
๐ - Country
United States
๐ฑ - Currency
$ USD
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๐ฐ - Day rate
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๐๏ธ - Date discovered
August 5, 2025
๐ - Project duration
More than 6 months
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๐๏ธ - Location type
Remote
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๐ - Contract type
Unknown
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๐ - Security clearance
Unknown
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๐ - Location detailed
Reston, VA
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๐ง - Skills detailed
#Data Modeling #"ETL (Extract #Transform #Load)" #NLP (Natural Language Processing) #API (Application Programming Interface) #ML (Machine Learning) #Scala #AI (Artificial Intelligence) #AWS (Amazon Web Services) #Cloud #Databases #Datasets #Strategy #Python #Automation #Data Engineering #Data Pipeline #Data Science #SQL (Structured Query Language)
Role description
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Job Title: Senior Data Scientist โ GenAI/NLP Focus
Location: Reston, VA (OFFSITE)
Type: 12 + months contract
Contractor Work Model: Remote with Quarterly ONSITE for quarterly planning
Overview
Weโre looking for a Senior Data Scientist to join a high-performing, collaborative team thatโs shaping the organization's generative AI and machine learning strategy. This is a hands-on role focused on natural language processing (NLP), large language models (LLMs), and AI-driven automationโespecially around translating structured data into natural language responses.
Youโll contribute from day one to an exciting early-phase project aimed at transforming manual business processes into AI-enabled, conversational workflows. If you enjoy building smart, scalable solutions at the intersection of data science, NLP, and modern AI, this is an opportunity to make a significant impact.
Key Responsibilities
โข Design, develop, and deploy AI/ML models, especially around natural language response generation from structured datasets.
โข Lead the conversion of manual workflows and SQL scripts into AI-powered, automated natural language systems.
โข Apply semantic parsing, code-to-text generation, summarization, and other NLP techniques to real-world business processes.
โข Collaborate with data engineers and product teams to architect scalable AI solutions in a cloud-based (AWS) environment.
โข Support early feasibility studies and rapidly prototype AI/ML concepts.
โข Serve as a bridge between AI, engineering, and business stakeholders by clearly communicating complex technical ideas to technical and semi-technical audiences.
โข Evaluate and integrate APIs, LLMs, and third-party AI services into existing infrastructure.
Required Qualifications
โข 6โ8 years of progressive experience in data science, analytics, and AI-focused roles.
โข At least 2โ3 years working with AI/ML techniques, especially natural language processing and large language models (LLMs).
โข Proven experience in:
โข Natural language processing: semantic parsing, code-to-text, text generation/summarization
โข Transforming unstructured data into structured formats suitable for ML
โข SQL and relational data modeling
โข Python for data science and ML tasks
โข Designing AI solutions that bridge business requirements and technical implementation
โข Solid understanding of data engineering conceptsโwhile this is not a data engineering role, the ability to collaborate with engineers and understand data pipelines is crucial.
โข Familiarity with prompt engineering and API integration of AI models.
โข Comfortable working in AWS-based environments.
Preferred/Bonus Skills
โข Hands-on experience with:
โข LLM fine-tuning
โข Embeddings and vector databases
โข Retrieval Augmented Generation (RAG)
โข Agentic AI architectures
โข Exposure to healthcare insurance data (e.g., claims, benefits, enrollment).
โข Experience integrating AI solutions across multiple platforms and systems.
The incumbent is required to immediately disclose any debarment, exclusion, or other event that makes them ineligible to perform work directly or indirectly on Federal health care programs. Must be able to effectively work in a fast-paced environment with frequently changing priorities, deadlines, and workloads that can be variable for long periods of time. Must be able to meet established deadlines and handle multiple customer service demands from internal and external customers, within set expectations for service excellence. Must be able to effectively communicate and provide positive customer service to every internal and external customer, including customers who may be demanding or otherwise challenging.
System One, and its subsidiaries including Joulรฉ, ALTA IT Services, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.
System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.
#M2
#DI2
Ref: #850-Rockville (ALTA IT)