lekhraj@github:~$

whoami

Senior Backend Engineer

experience

5+ Years

domain

Payments
Banking
FinTech
Enterprise SaaS

currently_building

Enterprise AI Platform
Spring AI
Kafka
Java 25

interests

Distributed Systems
Cloud Native
Platform Engineering
Go
AI Engineering

status

Always Learning 🚀

• ⚡ Senior Software Engineer with 6+ years of backend engineering experience.
• 🏦 Building mission-critical platforms in Payments, Banking, FinTech, and Enterprise SaaS.
• 🚀 Passionate about Distributed Systems, Event-Driven Architecture, and Platform Engineering.
• 🤖 Daily user of Claude Code, Cursor, GitHub Copilot, and Spring AI.
• ☁️ Currently exploring Go, Kubernetes, gRPC, MCP, and Cloud-native architectures.

Enterprise AI Platform built using Java 25 & Spring AI.

Java 25 • Spring AI • Kafka • PostgreSQL (pgvector) • Redis • Docker • OAuth2 • Testcontainers

flowchart LR

A[Documents] --> B[Kafka]

B --> C[Embedding Service]

C --> D[pgvector]

D --> E[Hybrid Search]

E --> F[LLM]

F --> G[Chat API]

https://github.com/lekhrocks/eka-backend

High-performance Gateway supporting

• Load Balancing
• Rate Limiting
• Retry
• Circuit Breaker
• WebSocket Metrics
• Prometheus
• 10K+ RPS

Production-ready Spring Boot backend

• Stripe Payments
• Authentication
• Product Catalog
• Orders
• Swagger
• Docker

Java    Go    JavaScript    TypeScript    Bash

Spring Boot   

GraphQL   

gRPC   

REST APIs   

Hibernate

Apache Kafka   

RabbitMQ

PostgreSQL   

MySQL   

MongoDB   

Redis

Docker   

Kubernetes   

GitHub Actions   

Jenkins

Prometheus   

Grafana   

Datadog   

Elasticsearch

🧠 Claude Code   

⚡ Cursor   

🤖 GitHub Copilot   

🌱 Spring AI   

🔗 MCP

• 💳 Payment Processing
• 🏦 Payment Gateway Integration
• 💰 Settlement
• 🔄 Reconciliation
• 🛒 Merchant Integration
• 🔐 PCI DSS
• 🎫 Tokenization
• 💵 Refunds
• ✅ Authorization & Capture

• 🚀 Enterprise AI
• ⚡ Java 25
• ☁️ Kubernetes
• 🔥 Go
• 🤖 AI Agents
• 🏦 Payment Platforms
• 🛰 Platform Engineering

• Enterprise Backend Systems
• Java Open Source
• AI Platforms
• Distributed Systems
• Event-Driven Architectures
• Payment Infrastructure

• Java
• Spring Boot
• Kafka
• Distributed Systems
• Payments
• System Design
• Performance Engineering
• Production Support
• AI-assisted Development