Fujisawa Tadoru

Architected microservice-based solutions leveraging AI-powered technologies (OpenAI Realtime API, Twilio Media Streams, WebSocket); designed low-latency streaming, natural barge-in, silence detection, sentiment analysis, memory orchestration (short-term/long-term), session management per call; built RAG pipelines (ingest, chunking, embeddings, vector DB, retrieval) grounded on company-specific knowledge; guided architecture for LLM/RAG infra; performed performance tuning and refactoring to reduce latency and improve throughput; produced design docs and roadmaps; evaluated new technologies and tools.

Built scalable, secure web solutions using C#, ASP.NET Core, React; leveraged Entity Framework Core; collaborated with design team to translate wireframes; managed SQL Server and CouchDB; integrated Google Maps SDK for real-time location tracking; implemented unit/integration tests; set up CI/CD with GitHub Actions, Docker, AWS Fargate, S3/CloudFront; developed AI processing pipeline using AWS Lambda for transcription, data analysis, and content generation; created and refined prompts for LLM automation; built a ChatGPT-like web frontend for intelligent insights and automation.

Collaborated across teams to build scalable web apps using React/Node.js; translated Figma designs into accessible UI; designed GraphQL schemas for user profiles, payments, and policy search; implemented GraphQL for state synchronization; optimized PostgreSQL with indexing and caching; built HIPAA-compliant APIs ensuring data integrity and privacy; improved team efficiency through standardized workflows.