Senior Data Scientist: AI & GenAI Solutions (Onsite)

Apex Systems, LLC; McLean (VA); On-site; USD 186,252,000 - 214,906,000; Full time

Job summary

Everforth Apex, a senior data scientist role in McLean, VA, focuses on applying Python and GenAI to build, test, and operationalize AI solutions that align with business goals. The role involves prompt design, validation, data preparation, and collaboration with cross-functional teams.

The ideal candidate brings 5–7+ years of experience, strong Python skills, and hands-on LLM experience, with familiarity in OpenAI/Anthropic APIs and vector databases.

Qualifications

• Bachelor's degree or higher preferred; exceptional experience may compensate.
• 5-7+ years of relevant experience in data science or AI.
• Experience with end-to-end AI solution development.
• Experience with OpenAI or Anthropic APIs.
• Applied AI engineering background is a plus.

Responsibilities

• Develop AI-powered applications using Python and LLMs.
• Design, test, and refine prompts; validate outputs.
• Build quality controls and guardrails for accuracy.
• Collaborate with technical teams to deploy solutions.
• Work with business teams to translate problems into AI use cases.
• Extract, clean, and structure data from diverse sources for GenAI.

Skills

Python development

Prompt engineering

LLM experience

Analytical skills

Independent work

Bitbucket version control

Education

Bachelor's degree or higher

Tools

OpenAI API

Anthropic API

RAG

Vector databases

Job description

Everforth Apex, a senior data scientist role in McLean, VA, focuses on applying Python and GenAI to build, test, and operationalize AI solutions that align with business goals. The role involves prompt design, validation, data preparation, and collaboration with cross-functional teams.

The ideal candidate brings 5–7+ years of experience, strong Python skills, and hands-on LLM experience, with familiarity in OpenAI/Anthropic APIs and vector databases.