

Data Scientist Sr
⭐ - Featured Role | Apply direct with Data Freelance Hub
This role is a Senior Data Scientist position for a 6-month contract, offering a pay rate of "$X/hour". It requires 6–8 years of experience in data science, with a focus on NLP and LLMs, and proficiency in Python and SQL. Remote work is available.
🌎 - Country
United States
💱 - Currency
$ USD
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💰 - Day rate
-
🗓️ - Date discovered
August 6, 2025
🕒 - Project duration
Unknown
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🏝️ - Location type
Unknown
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📄 - Contract type
Unknown
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🔒 - Security clearance
Unknown
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📍 - Location detailed
Reston, VA
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🧠 - Skills detailed
#API (Application Programming Interface) #Data Engineering #Data Science #NLP (Natural Language Processing) #AWS (Amazon Web Services) #ML (Machine Learning) #Strategy #Cloud #"ETL (Extract #Transform #Load)" #Datasets #Scala #Automation #Python #Data Pipeline #SQL (Structured Query Language) #Data Modeling #Databases #AI (Artificial Intelligence)
Role description
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Verified Job On Employer Career Site
Job Summary:
ALTA IT Services is seeking a Senior Data Scientist to join their team and contribute to the organization's generative AI and machine learning strategy. The role focuses on natural language processing (NLP), large language models (LLMs), and AI-driven automation, aiming to transform manual business processes into AI-enabled workflows.
Responsibilities:
• Design, develop, and deploy AI/ML models, especially around natural language response generation from structured datasets.
• Lead the conversion of manual workflows and SQL scripts into AI-powered, automated natural language systems.
• Apply semantic parsing, code-to-text generation, summarization, and other NLP techniques to real-world business processes.
• Collaborate with data engineers and product teams to architect scalable AI solutions in a cloud-based (AWS) environment.
• Support early feasibility studies and rapidly prototype AI/ML concepts.
• Serve as a bridge between AI, engineering, and business stakeholders by clearly communicating complex technical ideas to technical and semi-technical audiences.
• Evaluate and integrate APIs, LLMs, and third-party AI services into existing infrastructure.
Qualifications:
Required:
• 6–8 years of progressive experience in data science, analytics, and AI-focused roles.
• At least 2–3 years working with AI/ML techniques, especially natural language processing and large language models (LLMs).
• Proven experience in: Natural language processing: semantic parsing, code-to-text, text generation/summarization.
• Proven experience in: Transforming unstructured data into structured formats suitable for ML.
• Proven experience in: SQL and relational data modeling.
• Proven experience in: Python for data science and ML tasks.
• Proven experience in: Designing AI solutions that bridge business requirements and technical implementation.
• Solid understanding of data engineering concepts —while this is not a data engineering role, the ability to collaborate with engineers and understand data pipelines is crucial.
• Familiarity with prompt engineering and API integration of AI models.
• Comfortable working in AWS-based environments.
Preferred:
• Hands-on experience with: LLM fine-tuning.
• Hands-on experience with: Embeddings and vector databases.
• Hands-on experience with: Retrieval Augmented Generation (RAG).
• Hands-on experience with: Agentic AI architectures.
• Exposure to healthcare insurance data (e.g., claims, benefits, enrollment).
• Experience integrating AI solutions across multiple platforms and systems.
Company:
ALTA IT Services, LLC combines experience and expertise to deliver IT talent that meets and exceeds the expectations of our clients. Founded in 2004, the company is headquartered in Rockville, Maryland, USA, with a team of 201-500 employees. The company is currently Growth Stage.