Sameer Noorani

Senior Full Stack Software Engineer YC S25

Reacher · Remote · September 2025 - Present

• Developed an AI-powered creator discovery platform by indexing millions of TikTok videos with automated profile generation and semantic search.
• Built a distributed video-analysis pipeline using self-hosted VLMs (Keye-1.5) and Whisper, supported by async workers, circuit breakers, and real-time monitoring.
• Deployed multi-GPU inference on AWS p5.48xlarge (8x H100), configuring CUDA stacks and scaling with Modal for additional LLM hosting. Optimized to 80-90% GPU utilization.
• Achieved sub-2-second semantic search using query expansion, FastAPI async endpoints, and optimized PostgreSQL indexing.
• Engineered fault-tolerant infrastructure with node-based job distribution, checkpointing, and atomic DB operations for consistency under heavy concurrency.

Stack: Python, FastAPI, PostgreSQL, Azure OpenAI, Modal, AWS, CUDA, Whisper, asyncio, Docker, React

Senior Full Stack Engineer → Head of Engineering YC F24

Careforce AI (Previously Helpcare AI) · Remote · January 2025 - July 2025

• Promoted to Head of Engineering after building 90% of Helpcare's production codebase and leading development across AI systems, infrastructure, and security.
• Designed and implemented real-time autonomous AI calling agents using Python, the Vapi API, and Google Cloud Functions. These agents handled outbound/inbound calls, analyzed outcomes, scheduled follow-ups, sent Slack alerts, and booked appointments through dynamic browser automation.
• Built cron job infrastructure to automate call scheduling, post-call data retrieval, and callback workflows.
• Developed a front-end configuration application using React, Python FastAPI and Supabase, enabling clinics to define duties, schedules, and agent behavior.
• Architected a natural language query tool with Python, LangChain, and OpenAI API, allowing users to ask free-form questions about clinical data and receive answers in both tables and narrative summaries.
• Created a secure customer-facing API for uploading patient data and querying engagement status. Incorporated redundant LLM pipelines, fallback APIs, and AWS Bedrock integration for reliability.
• Transformed early-stage prototypes into scalable, production-grade systems deployed across multiple health centers in real-time.
• Implemented HIPAA-compliant infrastructure, including Row Level Security and Clerk.com authentication for fine-grained access control.
• Authored internal security policies, contributed to contract reviews, and completed security questionnaires to mitigate the lack of SOC 2 certification.
• Scaled the engineering organization from zero: defined hiring criteria, created technical assessments, and led interviews and onboarding for senior engineers.

Lead Senior Full Stack Software Engineer (Contract)

WorthyGrants · Remote · June 2024 - January 2025

• Developed from scratch an LLM-powered grant writer for non-profits looking to raise funds. Built with Next.js, React, AWS Bedrock, Supabase & Stripe.
• Developed a Chrome extension which assisted in the adding of grant data to the user's control panel.
• Created a subscription system using Stripe's API. Built a scraper using Playwright & AWS Lambda to auto-scrape grant data.

Founder

Demist AI · 2024 - Present

Built and launched a real-time AI voice guidance service connecting users with conversational agents over the phone. Features per-minute billing, Stripe integration, and a fully custom backend and ledger system.

Lead Senior Full Stack Software Engineer & Founder

Shifthive · San Francisco, CA · November 2018 - January 2025

• Engineered and deployed advanced AI scheduling algorithms that optimize complex schedules, impacting billion-dollar organizations like Minor Hotels and Mount Sinai Hospital.
• Mentored by Kirk Bradley, Oracle's employee #5.
• Directed a team of engineers in the development of scalable SaaS products, utilizing PHP Laravel, Angular, and Ionic for full-stack development.
• Coordinated cross-functional teams for API integrations and managed IT approval processes for large-scale deployments.

Lead Senior Full Stack Software Engineer & Founder

ShiftPosts (Acquired) · Toronto, Canada · September 2015 - August 2017

• Founded and led the development of an on-demand platform for healthcare shift workers, overseeing all aspects from concept to deployment.
• Architected the platform using Sails.js, integrating functionalities such as shift application and rating systems to ensure high service standards.

University of Toronto

Bachelor of Science · Computer Science & Neural Biology