Data Scientist, Prompt Engineering & LLMs
Eliassen GroupAbout the role
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 -092026-108578
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.
Education Requirements
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.
Qualifications
- 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.
Benefits
- Medical, Dental, and Vision benefits
- 401k with company matching
- Life insurance
Skills mentioned
About Eliassen Group
Eliassen Group is a strategic consulting firm that helps organizations achieve more through technology, business advisory, and life sciences solutions. For nearly 40 years, we have combined exceptional people, deep domain expertise, and intelligent capabilities — including AI — to expand our clients' capacity and accelerate meaningful outcomes. We are driven by a purpose to positively impact our employees, clients, consultants, and the communities we serve. Eliassen is committed to building a diverse and inclusive team. 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 based on race, color, gender identity or expression, sexual orientation, sex (including pregnancy and childbirth), disability, veteran status, age, national origin, citizenship status, or any other status protected by law. If you are contacted about an open position with Eliassen Group, please confirm you are working directly with us. All email communication will come from an @eliassen.com address (never Gmail, Yahoo, etc.), and Eliassen Group will never request personal information until you have worked directly with someone clearly affiliated with Eliassen Group. If you suspect fraudulent activity, contact fraud[at]eliassen.com Eliassen Group values transparency in our recruitment practices and uses artificial intelligence (AI) tools during application screening and hiring. You may receive email or SMS notifications from the Eliassen Virtual Recruiting Team (noreply@eliassen.com, 781 808 2924). All AI‑assisted evaluations are reviewed by human recruiters, and measures are taken to support fairness, consistency, and prevent bias or discrimination. By proceeding, you consent to the use of these tools. Skills, experience, and other compensable factors are considered when determining pay. Posted pay ranges reflect a W2 hourly rate; other employment options may be available.
H-1B sponsorship history
Historical employer filing data was found for Eliassen Group. The employer record includes 295 historical certified applications. This is employer-level history, not a guarantee that this role currently offers sponsorship.