Sebin Tom Joseph

Hotel revenue management platform delivering real-time KPI analytics for the hospitality industry. Designed and built rate band configuration and budget settings modules — full-stack features spanning Next.js UI, FastAPI REST endpoints, and PostgreSQL data models. Developed PostgreSQL-backed KPI aggregation service in FastAPI, supporting dynamic period filtering (daily, monthly, yearly) and segment-level breakdowns for hotel revenue dashboards. Investigated and resolved a double-counting defect in budget calculations caused by overlapping segment and group budget logic. Contributed to database schema design for F&B budget tables and participated in code reviews across the team.

Architected and built a distributed asynchronous CV processing pipeline: Next.js frontend → Java Spring Boot API → RabbitMQ → Python FastAPI consumers → Firestore. Supported batch uploads of up to 50 files per batch with 4–8 concurrent workers, reducing total processing time from ~50 minutes to under 10 minutes. Implemented REST APIs and microservices in Spring Boot and FastAPI with clean API design, versioning, DTO contracts, and centralized error handling. Integrated OpenAI API for CV-to-job matching, AI-generated mock interviews, and automated documentation. Integrated Stripe for subscription-based payments and CI/CD pipelines on GCP to deployment. Built an AI-powered automated calling agent integrating Twilio and Rete AI for scalable interview rounds.

Enterprise healthcare software company specializing in medical imaging platforms and hospital information systems. Built a Patient Profile module in Angular for viewing medical reports and imaging studies with DICOM data uploads and multi-step approval workflows. Designed and implemented a secure medical data sharing system enabling clinicians to share patient studies via email-access links with revocation controls and audit trails. Built a Work List module for navigating patient studies and OHIF imaging viewer, and refactored OHIF integration for better mobile usability and accessibility. Promoted from Software Engineer to Senior Software Engineer in Oct 2023.