Data Scientist, Prompt Engineering & LLMs

Description:
Hybrid 4 onsite / 1 work from home in Greenwood Village, CO

Our client seeks data scientists focused on prompt engineering, large language models, and A/B testing. You will design, develop, and optimize prompts for AI applications with emphasis on retrieval-augmented generation and LLM integration. You will partner with cross-functional teams to embed LLM capabilities into existing workflows, drive experimentation and statistical evaluation, and contribute to a growing portfolio of GenAI initiatives supporting customer experience and internal operations.

Due to client requirements, applicants must be willing and able to work on a w2 basis. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.

Rate: $58.00 to $62.00/hr. w2

JN -78

Responsibilities:

• Configure and integrate LLM solutions into existing systems and workflows to deliver high-quality, relevant outputs.
• Design and optimize prompts for RAG-based and LLM-powered applications.
• Plan and execute A/B tests and experimentation frameworks for LLM features and outputs.
• Conduct rigorous statistical analyses to validate findings and improve model performance.
• Analyze and preprocess large datasets to train and fine-tune language models.
• Create comprehensive documentation and provide training on best practices.
• Ensure data privacy and security compliance in all AI activities.
• Contribute to innovative AI products that add measurable business value.

Experience Requirements:

• Hands-on experience with prompt engineering and RAG patterns.
• Expertise in A/B testing and experimentation for LLMs.
• Proficiency in Python and SQL for data processing and model workflows.
• Familiarity with AWS services supporting AI/ML workloads.
• Experience applying AI/ML methodologies to production use cases.
• Advanced analytical, problem-solving, and research skills.
• Strong oral and written communication abilities.

Recruitment Transparency Notice



Eliassen Group values transparency in our recruitment practices. Please be advised that Eliassen Group utilizes artificial intelligence (AI) tools as part of its initial application screening and hiring process. You may receive email and SMS notifications from the Eliassen Virtual Recruiting Team (, ) inviting you to complete a brief voice screening as part of your application process. These tools assist our hiring teams in different ways, including but not limited to, assistance in reviewing application materials to help identify candidates whose qualifications most closely match the requirements of the position. All AI-assisted evaluations and responses are reviewed by human recruiters before any hiring decisions are made. The use of AI in our process is intended to support fairness, efficiency, and consistency, and Eliassen Group takes measures to prevent bias or discrimination in connection with its hiring practices. By proceeding, you acknowledge, agree, and consent to Eliassen Group's use of these tools, including AI tools, as part of the application and hiring process.

Skills, experience, and other compensable factors will be considered when determining pay rate. The pay range provided in this posting reflects a W2 hourly rate; other employment options may be available that may result in pay outside of the provided range.

W2 employees of Eliassen Group who are regularly scheduled to work 30 or more hours per week are eligible for the following benefits: medical (choice of 3 plans), dental, vision, pre-tax accounts, other voluntary benefits including life and disability insurance, 401(k) with match, and sick time if required by law in the worked-in state/locality.
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About Eliassen Group:

Eliassen Group is a strategic consulting firm that helps organizations reach further and achieve more through our technology, business advisory, and life sciences solutions. For nearly 40 years, we have combined exceptional people, deep domain expertise, and intelligent capabilities to expand our clients' capacity and accelerate meaningful outcomes. We are driven by a purpose to positively impact the lives of our employees, clients, consultants, and the communities we serve.

Eliassen is committed to building a diverse and inclusive team from a variety of backgrounds, perspectives, and skills. We are an Equal Opportunity and Affirmative Action Employer and all employment decisions are based on merit, performance, and business needs. Eliassen does not discriminate on the basis of race, color, gender identity or expression, sexual preference or orientation, sex (including pregnancy, childbirth, and related medical conditions), marital status, creed, religion, physical or mental disability, genetic information, military or veteran status, age, ancestry, national origin, citizenship status, prohibited criminal record inquiries of applicants and employees, or any other category protected by federal, state, or local laws.

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