Senior Prototype Engineer (R&D), AI Studio At Marriott This is a temporary position. Position Overview Ship concept-to-click demos in a single sprint. Your prototypes de-risk business ideas, showcase agentic enablement, and feed future production backlogs. Key Responsibilities Rapidly build PoCs with LangChain, LlamaIndex, CrewAI/Autogen, or in-house frameworks. Orchestrate demos with MCP servers to simulate multi-agent negotiations (availability, pricing, guest services). Spin up wizard-of-oz voice, chat, or AR experiences; instrument NPS and clickstream analytics. Log prompts/responses; annotate hallucinations for future fine-tuning datasets. Produce concise README and hand-off kits for the Delivery team to industrialize winning prototypes. Qualifications 7 + years of experience in building PoCs with AI frameworks and creating interactive experiences. Portfolio of week-long prototypes (links, GIFs, or repo PRs required). Deep prompt-craft and chain-of-thought debugging skills. Comfortable live-coding from a blank editor and articulating business impact. Familiar with lightweight guardrails, cost profiling, and autonomous-agent orchestration. Preferred Skills Experience running guest pilots or A/B tests in hospitality or travel tech. Knowledge of generative voice synthesis or multimodal UX libraries. The pay range for this position is $47.35 to $84.09 per hour. Washington Applicants Only: Employees will accrue 0.0334 PTO balance for every hour worked and eligible to receive minimum of 9 holidays annually. FLEX opportunities offer coverage for medical, dental, vision, health care flexible spending account, dependent care flexible spending account, life insurance, disability insurance, accident insurance, adoption expense reimbursements, paid parental leave, 401(k) plan, stock purchase plan, discounts at Marriott properties, commuter benefits, employee assistance plan, and childcare discounts. Benefits are subject to terms and conditions, which may include rules regarding eligibility, enrollment, waiting period, contribution, benefit limits, election changes, benefit exclusions, and others. Marriott HQ is committed to a hybrid work environment that enables associates to Be connected. Headquarters-based positions are considered hybrid, for candidates within a commuting distance to Bethesda, MD; candidates outside of commuting distance to Bethesda, MD will be considered for remote positions.