AvailableSDE at Decentro (YC S20)Bengaluru, India

HetBhutak

01 — 06

Payments Infrastructure/AI & LLM Systems/Voice AI/Backend Engineering

SDE at a YC-backed fintech, building payment APIs and settlement infrastructure — and the production voice agent that completes KYC end to end. I work on backend systems where correctness matters: money movement, reconciliation, and the pipelines around them.

01Available
SDE at Decentro (YC S20)
02National Hackathons
2× Winner
03Funding Won
₹1,00,000
04IMC '25
Exhibitor
01

Experience

Feb 2026 — Present

Software Development Engineer

Decentro Tech Pvt. Ltd. ↗

Y Combinator S20 · Full-time · Bengaluru, On-site

Backend & Payments Infrastructure

  • 01Built CRUD and list APIs for settlement cycle management on the internal API framework, exposing configuration and lifecycle operations to back-office and admin-ops teams with validation, pagination, and filtering handled at the framework layer.
  • 02Owned backend work on provider rate cards — the pricing layer determining what each payment provider charges per transaction. Drove a schema refactor normalizing rate cards from a flat structure into a parent/child model in a shared pricing collection, removing cross-provider duplication and making pricing changes versionable rather than overwritten in place.
  • 03Built list APIs for Admin-Ops metering and credit management backed by MongoDB/DocumentDB aggregation pipelines and MySQL, serving paginated, filterable views over plan-type mappings, API metering configuration, and customer credit ledgers.
  • 04Automated daily NSDL SFTP statement ingestion — T-1 file pickup, archival to Google Drive, and Slack alerting — replacing a recurring manual operations task and resolving upstream SFTP IP allowlisting with the infrastructure team.

AI & LLM Systems

  • 01Designed and shipped a production voice AI agent that completes the end-to-end KYC journey, guiding users through verification in real time with live status updates pulled from backend APIs.
  • 02Built an AI-powered speech-to-speech outbound calling system capable of holding natural, context-aware phone conversations — retaining full customer context across a call and automating follow-ups and support at scale with no human agent in the loop.
  • 03Built a Slack-integrated RAG assistant that answers employee questions by searching company documentation, SOPs, and API guides — centralizing organizational knowledge and cutting team dependency on senior engineers for repetitive queries.
  • 04Shipped an AI agent that puts real-time business insights directly in the hands of non-technical stakeholders, eliminating manual data pulls and analyst dependencies.
  • 05Created a workplace assistant that summarizes entire Slack channels, threads, and shared images on demand, keeping cross-functional teams aligned without reading every message.
PythonFastAPIMongoDBDocumentDBMySQLRedisRAGPipecatGemini Live APIDockerSlack APISFTP

Feb 2025 — May 2025

Data Science & Analytics Intern

Zidio Development

Internship · Remote

Data Science & Analytics

  • 01Completed a three-month Data Science & Analytics internship, working through the full analysis workflow — data cleaning and exploration, feature engineering, model building, and communicating results.
  • 02Built and shipped the internship project set covering machine learning and data-analysis problems, published openly at github.com/Hettbhutak/Internship-Projects.
PythonPandasNumPyScikit-learnData AnalysisJupyter
02

Projects

Production systems, research prototypes, and computer-vision work — built across the job, hackathons, and independent time.

01

NeuroNinja

Bio-signal controlled robotic arm

2025

An assistive robotic arm driven directly by EOG (eye movement) and EMG (muscle) signals, translating human intent into robotic precision without a controller. Built for accessibility and healthcare use cases.

  • Winner — 5G DoT Hackathon, ₹1,00,000 in funding
  • Evaluated at IISc Bengaluru before DoT, NTI and TCIL panels
  • Exhibited at India Mobile Congress 2025, New Delhi
EMG/EOGSignal ProcessingRoboticsEmbeddedPython5G
02

KYC Voice Agent

Production speech-to-speech verification

2026

A production voice AI agent at Decentro that walks a customer through the entire KYC journey over a live call — holding a natural, context-aware conversation while pulling real-time verification status from backend APIs, with no human agent in the loop.

PipecatGemini Live APIReal-time STT/TTSFastAPIAgent Orchestration
03

InFlow

Smart bus surveillance & crowd monitoring

2025

A computer-vision system estimating crowd density and passenger flow inside public buses, with an admin dashboard for real-time analytics, incident detection, and route optimization. Designed for smart-city deployment scenarios such as GIFT City, Gujarat.

OpenCVObject DetectionTypeScriptFull-stackIoT
04

NIDS

Real-time network intrusion detection

2026

A network intrusion detection system that analyzes live packet data rather than static datasets, using hop-based analysis to improve accuracy in identifying attack traffic as it happens.

PythonNetwork SecurityMLPacket Analysis

More Work

05

Voice-to-Text Keyboard

iOS custom keyboard extension

2026

A custom iOS keyboard extension using voice transcription as the primary input method — covering keyboard extension lifecycle, real-time audio processing, transcription API integration, and interface design.

SwiftiOSSpeech-to-TextAudio Processing
06

Project Samarth

Natural-language analytics over Indian agriculture data

2025

An interactive question-answering and analytics tool that lets farmers, analysts, and students ask plain-English questions to compare state-wise rainfall and crop production across real government datasets.

PythonNLPData AnalysisPandas
07

Human & Animal Detection

Video detection + industrial OCR

2026

Two coupled computer-vision systems: deep-learning detection and classification of humans and animals in video, and an OCR pipeline that extracts and structures text from stenciled industrial and military crates.

PythonDeep LearningOpenCVOCR
03

Recognition

Awards, funding, and national-stage showcases.

01
2025

Winner — 5G Innovation Hackathon

₹1,00,000

Department of Telecommunications (DoT), Government of India

Won the Pragati phase for NeuroNinja, a bio-signal controlled robotic arm, with ₹1,00,000 in funding awarded. Presented the working prototype at the evaluation round at IISc Bengaluru before DoT, NTI, and TCIL.

02
2025

Aspire Award — Innovate to Transform

India Mobile Congress · COAI · Ministry of Communications

Recognized on the international stage at IMC'25 for driving innovation, alongside exhibitors from 150+ countries.

03
2025

Exhibitor — India Mobile Congress 2025

Yashobhoomi, New Delhi

Held a dedicated booth at Asia's largest telecom, media, and technology event, presenting the NeuroNinja prototype to 400+ global companies, 7,000+ delegates, VCs, and industry leaders across 150+ countries.

04
2025

First Prize — SSIP Funding Round

Student Startup & Innovation Policy, Government of Gujarat

Secured first place and seed funding in the state innovation policy funding round.

04

Stack

What I reach for, grouped by what it's for.

01

Backend & Data

  • REST API design
  • FastAPI
  • Flask
  • MongoDB / AWS DocumentDB
  • MySQL
  • Redis
  • Aggregation pipelines
  • Schema design
  • Webhook automation
  • Third-party API integration
02

AI / LLM Engineering

  • LLM application development
  • RAG & vector search
  • Embedding pipelines
  • Context assembly
  • Tool calling
  • Agent orchestration
  • Multi-step reasoning
  • Structured output design
  • Prompt engineering
03

Speech & Voice

  • Real-time STT/TTS pipelines
  • Speech-to-speech agents
  • Conversational AI systems
  • Conversational state management
  • Pipecat
  • Gemini Live API
04

Machine Learning

  • PyTorch
  • TensorFlow
  • Scikit-learn
  • OpenCV
  • NumPy
  • Pandas
  • CNNs
  • RNNs / LSTM
  • NLP
  • Computer vision & object detection
05

Languages

  • Python
  • TypeScript
  • JavaScript
  • Swift
  • Java
  • SQL
  • C
06

Automation & Infra

  • n8n workflow automation
  • Docker / Docker Compose
  • Git & GitHub
  • Bitbucket
  • Jira
  • Postman
  • Slack API
  • SFTP integrations
05

Education

Sep 2022 — May 2026

B.Tech, Computer Science & Design

G. H. Patel College of Engineering & Technology

CVM University, Gujarat

CGPA 8.23 / 10

Leadership & Activities

  • 01Placement Cell Coordinator — TPC, GCET
  • 02Treasurer — ISTE Student Chapter, GCET (Nov 2024 – Jan 2026)
  • 03Technical Lead — GCET Astronomy Club (Oct 2022 – Apr 2024)
  • 04Events Manager — Computer Science Department
  • 05Delivered a lecture on the Big Bang theory under the GCET Astronomy Club

Certifications

Code Unnati Advance Course — Emerging Technologies

SAP · Edunet Foundation

2024 — 2025ID CU25_21025

Machine Learning, Deep Learning, Computer Vision, IoT, and SAP ABAP on Business Technology Platform.

Core Java Specialization

Coursera · 4-course specialization

Apr 2024Verify ↗

Introduction to Java, Object-Oriented Programming with Java, Object-Oriented Hierarchies, and the Java Class Library.

Communication Skills for Engineers

Rice University · Coursera · 3-course specialization

Jul 2023

Oral, interpersonal, and written communication for engineering leaders.

Capstone: Retrieving, Processing & Visualizing Data with Python

University of Michigan · Coursera

Sep 2024Verify ↗
06

Let's build something

Open to backend, AI/LLM, and voice-AI roles — and to interesting problems in payments infrastructure.

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Based in

Bengaluru, India

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