Senior Backend
Engineer

|
✨ Engineering systems that process 1.2M+ daily transactions at 99.9% uptime
🔐 Building carrier-grade Identity & Consent platforms for millions of telecom subscribers
🏗️ Expert in Microservices, Event-Driven Architecture & Distributed Systems
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Impact & Scale
🚀
1.2M+
Daily Transactions
Architected microservices platforms supporting $45M annual cargo operations
⚡
99.9%
System Uptime
Mission-critical, fault-tolerant systems with zero data loss
📈
2.5x
Throughput Improvement
Boosted identity & consent platform throughput via Redis caching and async processing
🔐
<100ms
Authorization Latency
Sub-100ms auth for millions of telecom subscribers and partner apps
Senior Engineering Experience

FullStack Engineer

LotusFlare

Building carrier-grade Identity, Consent Management, and Application Registry platforms serving millions of telecom subscribers and partner applications. Designing event-driven microservices with Java, TypeScript, Kafka, and Vue.js for real-time authorization and consent lifecycle management.

November 2025 – Present
Current Role
2.5x
Throughput Gain
<100ms
Auth Latency
Millions
Telecom Subscribers
CIBA
& Non-CIBA Flows

Team Lead

Accelya

Architected microservices platforms using Spring Boot & Kafka for global airline cargo operations. Led distributed systems design, security hardening, and CI/CD initiatives across a 7+ service ecosystem serving 50K+ concurrent users.

December 2021 – November 2025
4 Years
1.2M+
Daily Transactions
99.9%
System Uptime
7+
Microservices
85%
Fewer Security Incidents
$45M
Annual Cargo Ops
8 min
Deploy Time (from 45)
System Design Portfolio

Identity, Consent & Application Registry Platform

Identity & Security

Carrier-grade Identity, Consent Management, and Application Registry platform supporting telecom subscriber onboarding, partner integrations, and secure access to digital BSS services. Implemented CIBA and non-CIBA authorization flows for asynchronous, decoupled consent handling, SSO/RBAC via Keycloak, and centralized consent lifecycle management with full auditability.

Carrier-grade identity platform for millions of telecom subscribers
Java 21TypeScriptNestJSKafkaCassandraPostgreSQLRedisKeycloakOAuth2/OIDCCIBA
2.5x throughput gain
throughput
<100ms auth latency
latency
Millions of subscribers
reach
MFA + token revocation
security

Offer & Order Management System

Microservices

Scalable microservices-based platform modernizing airline retailing end-to-end — offers, pricing, bookings, and order fulfillment. Redesigned the multithreading architecture and tuned Oracle queries with Redis caching to cut latency, while a JUnit-based QA pipeline kept regressions in check across 8 microservices.

Shortened fulfillment workflow time by 45% with 99.8% API success rate
Java 11Spring Boot 2.7Oracle 19CRedisKafka 2.8DockerAWSAngular
25K+ daily orders
orders
8 microservices
services
450ms → 135ms (70%↓)
latency
95%+ code coverage
coverage

Price Influencer

Distributed Systems

Rule-based pricing engine automating pricing decisions within the SAS airline network. Processed 15+ pricing variables across seasonal, route-based, and inventory-driven models, integrating with 6 external booking and inventory systems via asynchronous processing for peak-hour throughput.

Reduced manual pricing errors by 85% and production bugs by 70%
Java 11Spring Boot 2.7KafkaRedisOracleDockerAWS
8K+ daily flight offers
volume
99.7% pricing accuracy
accuracy
180% throughput increase
throughput
92% code coverage
coverage
System Design Expertise

Core System Design Skills

☕Java & Spring Boot
95%
🟦TypeScript, NestJS & Vue.js
88%
🔌API Design (REST/GraphQL)
90%
🏗️Microservices Architecture
95%
🌐Distributed Systems
90%
🛡️High Availability & Fault Tolerance
92%
📈Scalability Engineering
94%
⚡Performance Optimization
88%
🔄Event-Driven Design (Kafka/RabbitMQ)
91%
🗄️SQL & NoSQL Databases (Oracle/PostgreSQL/Cassandra)
89%
⚙️Caching & In-Memory Stores (Redis)
90%
☁️Cloud & Containerization (Docker/Kubernetes)
92%
🚀CI/CD & Automation
87%
🔐Identity & IAM (Keycloak, OAuth2/OIDC, JWT, CIBA, MFA)
90%
📊Monitoring & Observability
83%

Technology Stack

☕Expert

Java

4+ years • 3+ projects
🍃Expert

Spring Boot

4+ years • 3+ projects
📡Advanced

Apache Kafka

3+ years • 2+ projects
📨Intermediate

RabbitMQ

2+ years • 2+ projects
⚡Expert

Redis

3+ years • 2+ projects
🎨Research

GANs (Generative AI)

1+ years • 1 Research Publication projects
🐘Expert

Oracle DB

4+ years • 3+ projects
📊Intermediate

Cassandra

2+ years • 1+ projects
☁️Advanced

AWS Cloud

3+ years • 2+ projects
🐳Expert

Docker

3+ years • 3+ projects
⚙️Advanced

Kubernetes

3+ years • 2+ projects
🔐Advanced

Keycloak & IAM (CIBA/OAuth2)

2+ years • 2+ projects
🟦Advanced

TypeScript & NestJS

1+ years • 1+ projects
💚Intermediate

Vue.js

1+ years • 1+ projects
🐘Intermediate

PostgreSQL

1+ years • 1+ projects
🚀Advanced

CI/CD (Jenkins, GitHub Actions)

3+ years • 3+ projects
📈Intermediate

Monitoring (Prometheus, Grafana)

2+ years • 2+ projects
Competitive Excellence
🏆

Top 1% CodeChef Global

5⭐ rating, Rank 246/29,626 globally

Global Rank 246
💻

LeetCode Problem Solver

Rank ~4974, 500+ problems solved

500+ Problems
📚

IEEE Research Publications

2 papers in ML and Computer Vision

2 Publications
🏅

Best Performer 2024

Accelya Solutions — recognized for outstanding project contributions

Accelya Solutions

Competitive Programming Profiles

🏆
CodeChef
5⭐ | Global Rank 246
Top 1% Globally
💻
LeetCode
Rank ~4974
500+ Problems Solved
🥈
Competitions
Multiple Wins
College & National Level
Research & Publications
IEEE SNPD 2022
Machine Learning • Control Flow

Instructions with Complex Control-Flow Entailing Machine Learning

Research on optimizing machine learning algorithms for complex control flow scenarios, improving execution efficiency by 40% in distributed computing environments.

Read Paper
IEEE SERA 2024
Computer Vision • GANs

Leveraging Conditional GANs for Cosmic Microwave Background Separation

Novel application of Conditional GANs for astrophysical data processing, achieving 95% accuracy in cosmic background separation with 3x faster processing times.

Read Paper
Let’s Connect 🚀

I'm actively seeking Senior Engineeropportunities at innovative tech companies. Let's collaborate and build impactful solutions together.

🎯 System Design Expert⚡ High-Scale Architecture🏆 Competitive Programming📚 Research Publications

Let’s Talk!

I usually respond within a few hours

saurabhshinde825@gmail.com

💬

WhatsApp Me

Quick chat about opportunities

+918888525971

GitHub Profile
20+ Repositories
Resume Download
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