Divya Soni  ·  Node.js Backend Developer  ·  4+ yrs

Mid-Level
4+ years experienceremote
Available within 48 hrs
Trading bots for 6 centralized exchanges

About Divya

Divya is a Backend Developer with 4+ years of experience in designing and deploying scalable backend systems using Node. js and PostgreSQL.

4+ years of commercial experience in

Web3 & CryptoFinTechSaaS / B2BMedia & Entertainment

Skills(13)

Node.jsPostgreSQLDockerRESTReactRedisDigital OceanJWTEther.jsWebRTCWebSocketReact.jsREST APIs

Why hire Divya?

Production deploy authorityMentored junior developersDesigned scalable backend systems

Architected a microservices-based backend using Node.js, ensuring modularity and scalability.

Developed high-performance trading bots for centralized and decentralized exchanges.

Implemented JWT-based authentication and secure digital signatures for multiple projects.

Established and managed CI/CD pipelines for backend deployments across various projects.

Built KGEN Oracle Network — decentralized Oracle nodes collecting user gaming activity + calculating scores + securely submitting data to Aptos blockchain for player POG NFT generation + designed Oracle message broker service as Backend Developer

Built Volume Generation & Spread Bot for 6 CEXs (MEXC + KuCoin + OKX + Bybit + Bitget + Gate.io) — high-performance trading bots with scalability + reliability + strategy execution + simulating organic volume as Backend Developer

Built Arbitrage Bot — Ethereum-based arbitrage trading bot executing profit-generating swaps using single DEX multi-leg routes + cross-DEX paths + simple swaps + Redis broadcasting + Flashbots private transactions as Backend Developer

Built CRM WebApp — robust + secure CRM with finely tuned role-based authorization + scalable backend + dynamic entity onboarding + data filtering + secure API as Fullstack Developer

Built Video Calling WebApp (P2P) — real-time peer-to-peer video calling using WebRTC + Node.js signaling + secure 1-1 video + dynamic room creation + WebSocket-based real-time messaging as Fullstack Developer

Project highlights(5)

Blockchain Oracle Network – Backend Developer

Overview: Designed and developed decentralized oracle nodes for collecting and submitting gaming data to the Aptos blockchain. Responsibilities: Designed and developed oracle message broker service and distributed Oracle nodes using Node.js. Integrated JWT-based authentication and secure digital signatures for node identity and data integrity.

Node.jsPostgreSQLRESTJWTDocker

Key outcomes:

  • Enabled secure and efficient communication between oracle nodes.

  • Managed encrypted score data and complex data workflows.

Arbitrage Trading Bot – Backend Developer

Overview: Developed an Ethereum-based arbitrage trading bot capable of executing profit-generating swaps. Responsibilities: Designed and implemented Node.js services for interacting with Ethereum smart contracts. Integrated Redis for fast trade signal propagation and service decoupling.

Node.jsEther.jsRedisRESTPostgreSQL

Key outcomes:

  • Reduced risk of front-running and increased execution reliability by integrating Flashbots.

  • Optimized transaction success and profitability through custom gas estimation.

CRM Web Application – Fullstack Developer

Overview: Developed a robust and secure CRM web application featuring a finely tuned role-based authorization system. Responsibilities: Designed and implemented secure, scalable REST APIs using Node.js and Type ORM.

Node.jsPostgreSQLRESTJWT

Key outcomes:

  • Ensured high scalability and dynamic entity onboarding through robust backend design.

  • Achieved high performance through optimized PostgreSQL schemas.

Video Calling Web Application – Fullstack Developer

Overview: Developed a real-time peer-to-peer video calling web application using WebRTC for media streaming. Responsibilities: Implemented the backend signaling server in Node.js, using WebSocket for exchanging SDP offers/answers.

Node.jsWebRTCReactRedisPostgreSQL

Key outcomes:

  • Enabled secure P2P video/audio streams through WebRTC integration.

  • Provided real-time messaging and dynamic room creation capabilities.

Video Calling WebApp (Peer-to-Peer Communication) – Fullstack Developer

Video Calling WebApp (P2P) — real-time peer-to-peer video calling with WebRTC + Node.js signaling + secure 1-1 video + dynamic rooms + WebSocket messaging.

Node.jsWebRTCWebSocketReact.jsRedisPostgreSQLREST APIs

Key outcomes:

  • Enabled secure P2P video/audio streams through WebRTC integration.

  • Ensured robust session handling with implemented connection timeout and retry logic.

  • Provided real-time messaging and dynamic room creation capabilities.

Industry experience

Web3 & Crypto

2 projects
  • •Blockchain Oracle Network— Backend DeveloperNode.js · PostgreSQL · REST · JWT +1
  • •Arbitrage Trading Bot— Backend DeveloperNode.js · Ether.js · Redis · REST +1

FinTech

1 project
  • •Arbitrage Trading Bot— Backend DeveloperNode.js · Ether.js · Redis · REST +1

SaaS / B2B

1 project
  • •CRM Web Application— Fullstack DeveloperNode.js · PostgreSQL · REST · JWT

Media & Entertainment

2 projects
  • •Video Calling Web Application— Fullstack DeveloperNode.js · WebRTC · React · Redis +1
  • •Video Calling WebApp (Peer-to-Peer Communication)— Fullstack DeveloperNode.js · WebRTC · WebSocket · React.js +3

Ready to work with Divya?

Schedule an interview and onboard within 48 hours. No long hiring cycles.

At a Glance

Experience4+ years
Work moderemote
Starting from₹1.6 L/mo
Direct hirePossible
Start within48 hours
From₹1.6 L/ month

Single contract. No agency markup confusion.

Typically responds within 4 business hours.

5-day replacement guarantee
48-hour onboarding, single invoice
Direct chat — no recruiter middleman
Seniority signals
Owns production deploysGreenfield architectSystem ownerCode reviewerMentor / leads juniors
VerifiedVetted by Witarist
Technical skills assessed & verified
Background & identity checked
English communication verified
Ready to onboard in 48 hours

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Divya Soni

Node.js Developer