RV
[01]Initialization

RishabhVarshney

// Software Engineer · Full-Stack · Cloud · Real-time

I build cloud telephony, real-time and AI-assisted systems end to end — WebRTC calling and SIP media servers, OCPP charger networks and data pipelines, plus the React interfaces on top. Scroll to descend through the machine.

Years shipping
5+
Years shipping
Fields worked in
10+
Fields worked in
Users on calling platform
20k+
Users on calling platform
Charge points online
10k+
Charge points online
Descend ↓Resume ↓GitHub ↗

Status: Available for impactful roles // Loc: Hyderabad / Remote

field.map

10+ fields worked in
  1. 01Cloud Telephony
  2. 02Contact-Center CRM
  3. 03Applied AI
  4. 04E-commerce
  5. 05HR Tech
  6. 06IoT
  7. 07EV Charging
  8. 08Fintech
[02]Experience · Current

RuntimeCore

The live system at the heart of the machine: a cloud telephony and contact-centre CRM — carrier webhooks and SIP media up through the calling experience agents use every day.

EXP-01CLOUD TELEPHONY // CONTACT-CENTER CRMAUG 2024 — PRESENT

RUNO

runo.ai ↗

Software Development Engineer I · Hyderabad

  • One webhook layer normalising Twilio, Vonage, Telnyx and Airtel call events into a single model.
  • Single-leg, dual-leg and WebRTC browser calling for 20k+ users, from any device.
  • In-house Asterisk server (Docker on AWS EC2) for SIP signalling and media — 3k+ concurrent calls, 100% recorded to S3.
  • 50+ features on AWS Lambda with the Serverless Framework: role-based access, PII phone-number masking and SQS-driven Gemini AI analysis of 500+ calls a day.
  • CloudWatch and Crashlytics observability across the call pipeline — 60% faster issue resolution as first responder.
  • Node.js
  • TypeScript
  • AWS Lambda
  • Asterisk
  • SIP
  • WebRTC
  • SQS
  • Gemini
[03]Experience · Earlier

DataChannels

Where the pipelines started — ingestion at scale, real-time chat, and devices talking to apps over MQTT and webhooks.

EXP-02AI E-COMMERCEFEB 2024 — AUG 2024

R3Factory

r3factory.com ↗

Software Developer Intern · Remote

  • Multi-threaded Python + FastAPI pipeline ingesting 10k+ records a week from 5+ sources into MongoDB — normalised, deduplicated and enriched with seller price history; +30% throughput.
  • RASA NLP support chatbot connected to the React storefront over WebSockets — 200+ queries a day, +30% engagement.
  • Python
  • FastAPI
  • MongoDB
  • RASA NLP
  • React
  • WebSockets
EXP-03HR TECH // IOTAUG 2021 — OCT 2023

Otomator Technologies

otomator.com ↗

Full Stack Developer Intern · Remote

  • MERN attendance platform on AWS for 1,200+ employees — web and RFID biometric check-ins, daily payroll CSVs, 70+ HR hours saved a month.
  • Node.js IoT service layer linking 50+ devices to a mobile app over MQTT pub/sub with token-secured webhooks — 99.9% availability.
  • MongoDB
  • Express
  • React
  • Node.js
  • MQTT
  • AWS
[04]Freelance Projects

EdgeNodes

Freelance platforms shipped into the field — an EV-charging network and an accounting product, each linked below.

PRJ-01EV CHARGINGDEC 2023

XEV Charging

x-ev.io ↗

Freelance · Tech Lead

  • Wrote the OCPP server in Elixir for charger communication; led 5 engineers on Next.js and Flutter apps over Dockerised Go microservices on AWS.
  • Scaled to 10k+ connected charge points, streaming live station status to 50k+ concurrent users at 2–10 ms.
  • Elixir
  • OCPP
  • Go
  • Next.js
  • TypeScript
  • AWS
PRJ-02FINTECH // ACCOUNTINGFEB 2024

Finaccru

finaccru.com ↗

Freelance · Full-Stack

  • React + Redux frontend and WebSocket chat with role-based views for 100+ concurrent users; co-built the FastAPI + MySQL backend on GCP in a team of 3.
  • OCR document review handling 500+ documents a day at 90% field-level accuracy — 70% faster invoice entry.
  • React
  • Redux
  • FastAPI
  • MySQL
  • GCP
[05]Output

SystemReady.

rishabh@machine-room: ~/output

  • $ cat toolchain.cfg

    Languages
    TypeScript · JavaScript · Python · Go · Elixir · Dart · SQL
    Frontend
    React · Next.js · Redux · Flutter · Tailwind · WebRTC
    Backend & Cloud
    Node.js · FastAPI · REST · GraphQL · AWS Lambda · Cognito · SQS
    Data
    PostgreSQL · MongoDB · MySQL · Redis
    Tooling
    Docker · Serverless · GitHub Actions · Asterisk · SIP · MQTT

  • $ ./open --resume

    rishabh-varshney-resume.pdfDownload ↓

  • $ contact --email

    rishabhvar.11@gmail.comMail ↗

  • $ contact --github

    github.com/var-rishabhOpen ↗

  • $ contact --linkedin

    linkedin.com/in/rishabh-buildsOpen ↗
  • $ ▮

© 2026 Rishabh Varshney // Built with Next.js & React Three Fiber — 100% procedural 3D