Applied AI Scientist

Must have

• PhD in CS, ML, NLP, IR, or a related field.
• 7+ years in applied ML, NLP, IR, or ranking (research-track and graduate work can count toward depth), with recent hands-on ownership of LLM and agentic systems.
• Shipped LLM or RAG-style systems into production and personally owned their reliability, latency, and monitoring at scale.
• Built and owned agentic or multi-step orchestration (tool use, routing, planning), not just prototypes or demos.
• Strong coding ability and real comfort in a production codebase.
• Solid experimentation and evaluation rigor: offline evals, A/B testing, causal thinking.
• IC5 signals: set technical direction across teams, owned architecture, and operated as a peer-level influence, not just a strong executor.
• Strong plus (any of these stand out, none are required)
• Knowledge graphs, entity resolution, or representation learning.
• Query understanding and intent modeling.
• Search and retrieval depth: lexical, semantic, hybrid, reranking.
• LLM fine-tuning.
• A record of taking research from idea to published result to shipped feature.
• You'll do well here if
• You take a nebulous problem, give it structure, build something testable, and iterate.
• You're the glue between data science, ML engineering, and product.
• You explain technical tradeoffs clearly and stay focused on what reaches the customer.
• Our Commitment to Diversity, Equity, and Inclusion at Demandbase
• At Demandbase, we believe in creating a workplace culture that values and celebrates diversity in all its forms. We recognize that everyone brings unique experiences, perspectives, and identities to the table, and we are committed to building a community where everyone feels valued, respected, and supported. Discrimination of any kind is not tolerated, and we strive to ensure that every individual has an equal opportunity to succeed and grow, regardless of their gender identity, sexual orientation, disability, race, ethnicity, background, marital status, genetic information, education level, veteran status, national origin, or any other protected status. We do not automatically disqualify applicants with criminal records and will consider each applicant on a case-by-case basis.
• We recognize that not all candidates will have every skill or qualification listed in this job description. If you feel you have the level of experience to be successful in the role, we encourage you to apply!
• We acknowledge that true diversity and inclusion requires ongoing effort, and we are committed to doing the work required to make our workplace a safe and equitable space for all. Join us in building a community where we can learn from each other, celebrate our differences, and work together.
• Unsolicited Submissions
• At Demandbase, we value thoughtful partnerships and direct connections with candidates. We’re not accepting unsolicited resumes or outreach from third-party recruiting agencies. Any unsolicited submissions will not be reviewed, and no fees will be paid.