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I’m Sumit Patel, a senior software engineer with 8+ years of experience building production AI and full-stack platforms—especially conversational voice AI, agentic LLM systems, and large-scale backend architectures. I enjoy turning complex requirements into reliable systems, from low-latency real-time audio streaming to RAG and tool-calling workflows that work in the real world. Over the years I’ve led teams and owned end-to-end delivery for high-throughput platforms (tens of thousands of daily calls/users), while also contributing to security and distributed-trust systems like verifiable credentials and cryptographically integrity-checked ledgers. I like collaborating across product, security, and operations, and I’m happiest when I can ship, measure, and continuously improve what we build.…I’m Sumit Patel, a senior software engineer with 8+ years of experience building production AI and full-stack platforms—especially conversational voice AI, agentic LLM systems, and large-scale backend architectures. I enjoy turning complex requirements into reliable systems, from low-latency real-time audio streaming to RAG and tool-calling workflows that work in the real world. Over the years I’ve led teams and owned end-to-end delivery for high-throughput platforms (tens of thousands of daily calls/users), while also contributing to security and distributed-trust systems like verifiable credentials and cryptographically integrity-checked ledgers. I like collaborating across product, security, and operations, and I’m happiest when I can ship, measure, and continuously improve what we build.

Sumit Patel

Software Engineer, Full Stack Developer, AI Engineer, +2

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I’m Sumit Patel, a senior software engineer with 8+ years of experience building production AI and full-stack platforms—especially conversational voice AI, agentic LLM systems, and large-scale backend architectures. I enjoy turning complex requirements into reliable systems, from low-latency real-time audio streaming to RAG and tool-calling workflows that work in the real world. Over the years I’ve led teams and owned end-to-end delivery for high-throughput platforms (tens of thousands of daily calls/users), while also contributing to security and distributed-trust systems like verifiable credentials and cryptographically integrity-checked ledgers. I like collaborating across product, security, and operations, and I’m happiest when I can ship, measure, and continuously improve what we build.…I’m Sumit Patel, a senior software engineer with 8+ years of experience building production AI and full-stack platforms—especially conversational voice AI, agentic LLM systems, and large-scale backend architectures. I enjoy turning complex requirements into reliable systems, from low-latency real-time audio streaming to RAG and tool-calling workflows that work in the real world. Over the years I’ve led teams and owned end-to-end delivery for high-throughput platforms (tens of thousands of daily calls/users), while also contributing to security and distributed-trust systems like verifiable credentials and cryptographically integrity-checked ledgers. I like collaborating across product, security, and operations, and I’m happiest when I can ship, measure, and continuously improve what we build.

Available to hire

I’m Sumit Patel, a senior software engineer with 8+ years of experience building production AI and full-stack platforms—especially conversational voice AI, agentic LLM systems, and large-scale backend architectures. I enjoy turning complex requirements into reliable systems, from low-latency real-time audio streaming to RAG and tool-calling workflows that work in the real world.

Over the years I’ve led teams and owned end-to-end delivery for high-throughput platforms (tens of thousands of daily calls/users), while also contributing to security and distributed-trust systems like verifiable credentials and cryptographically integrity-checked ledgers. I like collaborating across product, security, and operations, and I’m happiest when I can ship, measure, and continuously improve what we build.

Skills

Experience Level

Expert

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Intermediate

Intermediate

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Intermediate

Work Experience

Senior Software Engineer, Full Stack & AI at The Hashgraph Group

August 1, 2025 - Present

Led a team of 4 engineers to build and ship a production real-time conversational voice AI calling platform for inbound/outbound phone agents. The system uses Twilio SIP/phone audio with OpenAI Realtime API, supports multi-tenant operation, bidirectional WebSocket streaming, mu-law audio handling, session management, live call transcripts, JWT auth, and usage-based credits/billing. Architected for load and reliability, running 40–50 campaigns and handling ~30,000–40,000 outbound calls/day with load testing to 100,000+ calls/day. Implemented pluggable low-latency TTS with voice cloning across providers (ElevenLabs, Cartesia, PlayHT), integrated tool/function calling plus keyword RAG over project knowledge (including Hindi/Devanagari) to reduce hallucinations, and built campaign orchestration with webhooks, call metrics, and a Next.js dashboard for agent configuration and analytics. Also built HashCare, an AI product support platform using RAG over documentation, FAQs, and past ticke

Senior Software Engineer at Cybersecurity Research Center, IIT Kanpur (C3iHub / Campus Security Systems)

March 1, 2024 - August 1, 2025

Led and contributed to security and access-control platforms supporting 40,000+ monthly users. Created a campus digital access infrastructure (web/iOS/Android) with LDAP-based authentication and implemented AI-assisted access-log anomaly detection by training on historical swipe/entry patterns to flag irregular access attempts in near real time (off-hour entries, duplicate/rapid swipes, unusual location sequences). The system reduced manual review effort by ~30% and improved incident detection for campus security. Contributed to an indigenous 24x7 Security Operations Center spanning IT and OT/ICS environments, building components for network intrusion detection such as asset discovery, vulnerability mapping, and traffic monitoring across IoT/ICS networks, along with malware analysis tooling and real-time dashboards for continuous threat visibility and incident response.

Software Engineer at Cybersecurity Research Center, IIT Kanpur

October 1, 2019 - March 1, 2021

Built cryptography-backed distributed trust systems including a self-sovereign identity credentials platform and integrity-preserving record systems. Implemented public-key based signing/verification workflows, revocation status checks, and W3C Verifiable Credentials-compliant schemas to support issuer/holder/verifier flows, used to issue degree credentials for 10+ institutions covering 50,000+ students. Designed an append-only, cryptographically chained tamper-proof land registry using hash-linked entries and Merkle-tree-based integrity proofs, with ingestion pipelines to migrate inconsistent legacy paper records into a verified digital store. Developed a Transferable Development Rights (TDR) management system tracking issuance, transfer, and redemption of certificates using digital signatures and hash-chained transaction logs to guarantee non-repudiation and prevent duplicate/conflicting transfers across authorities.

Software Engineer (Backend) at McKinley Rice Private Ltd

November 1, 2018 - December 1, 2019

Contributed to a Node.js/MongoDB e-learning platform on AWS for 1,500+ users, focusing on backend scalability and subscription payments. Implemented a Razorpay subscription flow handling 500+ monthly transactions and supported zero-downtime releases using GitHub Actions CI/CD. Standardized API contracts using Swagger/OpenAPI and implemented MongoDB sharding to enable horizontal scaling as usage grew.

Software Engineer (Backend) at Appinventive Technologies Private Ltd

January 1, 2018 - October 1, 2018

Built and maintained Node.js/Express REST APIs for multiple production web applications. Implemented MongoDB sharding and replica set strategies to scale database throughput, and managed Dockerized CI/CD workflows for reliable releases. Set up GitHub Actions pipelines running Mocha tests and linting on pull requests to catch regressions early and reduce production issues from bad deployments.

Front End Developer at Tekfactory Consulting Private Ltd, Noida

May 1, 2017 - December 1, 2017

Built responsive React UI components and implemented state management using hooks and Redux for complex e-commerce workflows, integrating REST APIs for catalog, cart, and checkout. Containerized the frontend and backend using Docker Compose to standardize local development and staging environments and simplify multi-service orchestration across the team.

Education

Master of Science, Computer Science & Engineering at Indian Institute of Technology, Kanpur (IITK)

January 1, 2021 - January 1, 2024

Bachelor of Technology at JSS Academy of Technical Education, Noida

January 1, 2012 - January 1, 2016

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Healthcare, Education, Government, Financial Services, Telecommunications, Computers & Electronics, Professional Services, Real Estate & Construction