Java Developer (Core Java & Apache Spark)

Build and own evaluation infrastructure, observability tooling, datasets, annotation workflows, and diagnostic systems for production AI agents. Lead experiments across prompts, models, routing, caching, cost, and latency. Diagnose failures across planning, tool use, and agent execution, while partnering with AI Core engineering. Manage and grow the AI Quality team as a hands-on player-coach, contributing directly to production code and technical direction.

Cleans and maintains assigned hotel guest rooms, including beds, bathrooms, floors, linens, amenities, and deep-cleaning tasks. Stocks and transports housekeeping supplies, responds courteously to guest requests, and disposes of waste properly. The role requires physical stamina, attention to cleanliness and presentation, teamwork, schedule flexibility, basic English proficiency, and knowledge of cleaning chemicals and safety procedures.

Serves as the primary guest contact throughout hotel stays, providing personalized service, coordinating dining, transportation, room preferences, VIP amenities, and special requests. Resolves concerns, collaborates across departments, gathers feedback, maintains guest profiles, and prepares interaction reports to improve service and guest loyalty. Requires hospitality or guest-relations experience, strong communication skills, familiarity with hotel PMS systems, English fluency, and flexible shift availability.