Open to Senior / Lead roles

Ravi Ranjan Kumar

Senior Software Engineer | Fullstack Developer (Backend Heavy) · Malviya Nagar, New Delhi · +91 6201150218 · contact70raviranjan@gmail.com

Backend-heavy Fullstack Engineer with 6+ years of experience building high-scale distributed systems across fintech, logistics, and social media domains. Expert in Node.js, React, and AI integrations. Built systems processing 1,500+ requests/minute, designed AI chatbots generating ₹50L+ in collections, and led teams delivering 20+ production applications. Passionate about system design, real-time architectures, and leveraging AI for business impact.

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Experience

AI-Enhanced Experience View
analyzing: senior_engineer_role.log

Senior Software Engineer

International Asset Reconstruction Company (Blackstone Portfolio)
// fintech • loan resolution • new delhi
  • Designed end-to-end AI loan recovery chatbot using Gemini with multi-tool orchestration (settlement negotiation, payment integration, document delivery) — processed 5,000+ accounts with 96% intent accuracy, generating ₹50L+ collections, reducing agent workload by 30%, and recovering 33% previously unreachable contacts.
  • Architected Kafka event streaming system handling 1,500+ requests/minute across 5+ consumer groups for payment webhooks, audit logging, and real-time campaign updates with exactly-once semantics.
  • Built high-throughput SQS queuing architecture dispatching 400K–500K campaign tasks/day with DLQ support, exponential backoff retry strategies, and partial failure recovery.
  • Developed background workers for database synchronization using MongoDB change streams, enabling real-time data replication and event-driven updates across microservices.
  • Optimized database performance via stream-based batch writes, read replicas, index tuning, and denormalization — achieving p90 latencies under 200ms across critical APIs.

Technologies: Node.js, Kafka, AWS (Lambda, SQS, CloudWatch, EC2), Redis, MongoDB, Gemini AI, Microservices, Event-Driven Architecture

Apr 2024 – Present
analyzing: team_lead_role.log

Software Developer (Team Lead)

Paras Technologies
// ecommerce • social media • logistics • mohali
  • Led architecture and delivery of 20+ full-stack applications across e-commerce, social media, logistics, and ride-hailing domains, managing team of 4–6 developers with hands-on technical leadership.
  • Built WorkUp — professional video social platform with real-time video calls (Azure Communication Services) with live recording for AI-powered interview analysis (Vertex AI), live chat (Socket.io), and Firebase notifications.
  • Developed Cross Fader — live radio streaming platform with Azuracast integration, handling concurrent streams, subscription billing (Stripe), and dynamic ad insertion.
  • Implemented AI features including guided interview practice, resume analysis, and content moderation using Vertex AI and Google Video Intelligence API.

Technologies: Node.js, Express.js, EJS, MongoDB, Socket.io, AWS, GCP, Azure, Vertex AI

May 2021 – Apr 2024
analyzing: sde_role.log

Software Development Engineer

Platform Tech Solutions
// ecommerce • affiliate • panchkula
  • Contributed to 4–5 full-cycle product builds in e-commerce, affiliate marketing, and restaurant booking domains using React, Node.js, GraphQL, and MongoDB.
  • Built real-time features using Socket.io and implemented payment integrations with Stripe and Razorpay.
  • Notable projects: Cabaret (table booking app), Zoogol (social e-commerce platform)

Technologies: React, React Native, Node.js, MongoDB, AWS, GraphQL, Socket.io

Jan 2020 – Apr 2021

Education

education.verified

Panjab University, Chandigarh

Bachelor of Engineering
// B.E. — Class of 2020
June 2016 – June 2020

Skills

AI skill-map analysis
Programming Languages & Tools
scanning: technical_skills.json

// Core competencies detected ↓

Languages

JavaScript
TypeScript
Java
SQL

Backend

Node.js
Express.js
REST APIs
GraphQL

Frontend

React.js
Redux
EJS

AI / ML

Gemini
Vertex AI
OpenAI APIs
Function Calling
Prompt Engineering
Video Intelligence API

Architecture & Systems

Microservices
Event-Driven Arch
Distributed Systems
High-Throughput
Caching

Cloud & DevOps

AWS Lambda
EC2 / S3
SQS / SNS
EKS
GCP
Docker
CI/CD
GitHub Actions

Databases & Messaging

MongoDB
Redis
Elasticsearch
Firebase
Kafka
SQS
RabbitMQ

Libraries & Integrations

Stripe
Razorpay
Twilio
SendGrid
Agora
Socket.io
JWT / RBAC

Management & Tools

Agile
Jira
Git
Confluence
Code Reviews
Technical Mentorship

Projects

Click any project — AI will narrate the details
🎬
WorkUp
America's TikTok, with a professional twist!
Professional social network app that uses video to explore topics, connect with others and get hired.
Node.jsExpress.jsMongoDBAWSVertex AIStripe
Ask AI
🚛
Doc Watch
Logistics Made Easy
Platform for truck drivers to rate, review, and access info about shippers and receivers.
Node.jsExpress.jsMongoDBAWSStripeTwilio
Ask AI
📻
Cross Fader
Cfader Radio — Uninterrupted Music
Live radio streaming platform with subscription, ads and Azuracast integration.
Node.jsExpress.jsMongoDBAzuracastStripe
Ask AI
🤝
BooMe
Platform for Gig Workers
Connects businesses, influencers and talent with real-time chat and Stripe Connect.
Node.jsExpress.jsMongoDBStripe Connect
Ask AI
💪
Lifium
Fitness App — Earn While You Burn
Fitness platform rewarding users with coins for daily workouts, with e-commerce integration.
Node.jsExpress.jsMongoDBRazorpayFirebase
Ask AI
📡
Direct Reunion
Live Weather & Traffic Camera App
Access public cameras — traffic cams, weather cams — with referrals and in-app purchases.
Node.jsExpress.jsMongoDBIn-App Purchase
Ask AI

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