H
Hemant Kumar
From India
$30/hr or $20,000/yr

Active over a week ago


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Full stack developer

Full-Stack Engineer
Available for hire
Years of experience
1+ years
Experience level
Mid-level
Available for
Full-time, Contract, Freelance
Available from
05 Jun 2026

I’m a full stack developer who enjoys building real-world AI products, not just prototypes. At Attack Capital, I led a small team to ship AI tools like a clinical scribe and voice agent end-to-end. I focus a lot on performance, scaling, and clean architecture, especially in multi-tenant SaaS systems. I’ve worked deeply with LLMs, RAG pipelines, and real-time STT to solve practical problems. What makes me unique is that I combine AI + backend + product thinking to actually deliver impact, not just code.

Skills

No skills.

Languages

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Employment History

Full stack developer at Attack capital 2025 - 2026
Led a 3-engineer team shipping 3 AI products from 0 ->1 at a YC-backed healthcare startup AI Scribe, Voice Agent, and Email Campaigning Platform. Owned architecture, delivery, and production infrastructure end-to-end. ▸ Delivered 40% better system performance under load via backend optimization and advanced PostgreSQL query tuning cutting script execution time by 45% ▸ Architected a real-time AI Scribe using Whisper, Deepgram, and RAG pipelines (pgvector) for context-aware clinical note generation from live patient-physician conversations ▸ Engineered an autonomous AI Voice Agent handling patient intake, scheduling, and FAQs eliminating routine front-desk workload using LangChain and NLU pipelines ▸ Built a high-throughput email campaigning platform with BullMQ job queues supporting large-scale personalized outreach and automated follow-up sequences ▸ Designed secure multi-tenant architecture ensuring complete data isolation across clinic clients covering all 3 core products ▸ Improved user engagement by 25%, reduced API response time by 25%, and cut UI bugs by 20% through systematic backend and frontend refactoring ▸ Deployed and operated full stack on GCP with Docker containerization, Nginx load routing, and Grafana-based observability
Full stack developer at india accelerator 2024 - 2025
Built and maintained the internal management portal end-to-end — owning both frontend and backend across a fast-moving accelerator environment. Focused on performance, reliability, and shipping clean, scalable systems. ▸ Boosted system performance by 40% under load by implementing optimized RESTful APIs, refactored database models, and improved request handling on a Node.js/Express backend ▸ Cut API response times by 25% through scalable backend architecture improvements and strategic query optimization ▸ Improved user management efficiency by 30% by streamlining core portal workflows and admin capabilities on the internal ops platform ▸ Delivered responsive React.js UI components that lifted user engagement by 35% and reduced UI-related bugs by 20% ▸ Automated 50% of manual internal workflows by collaborating with cross-functional teams to upgrade tooling and expand admin functionality — significantly reducing operational overhead
web developer intern at RTmap tech solutions 2023 - 2023
Tech Stack:- Built using the MERN stack, with a strong focus on Node.js, React, and modern ES6+ JavaScript features for clean, efficient development. Features:- Delivered a responsive front-end, applied code refactoring, and implemented best practices and design patterns to ensure a robust and maintainable structure. Impact:- Drove a 15% increase in user adoption, cut script execution time by 50%, and improved user management efficiency by 30%, enhancing overall platform performance.

Education

B.Tech at shaheed bhagat singh state university 2021 - 2025