Backend Engineer | Java | Spring Boot | Microservices | Distributed Systems | Apache Kafka | AWS | System Design (HLD/LLD)

Backend Engineer with 3+ years of experience designing and building scalable, secure, and production-grade backend applications using Java and the Spring ecosystem.

I specialize in backend architecture, microservices, distributed systems, cloud-native applications, payment systems, CRM integrations, and AI-powered backend solutions. My focus is on building reliable software that scales while maintaining performance, security, and clean architecture.

I have experience working across enterprise and SaaS products in domains including Real Estate, CRM, Cloud Services, Multi-Vendor E-commerce, and AI-powered applications. I enjoy solving complex engineering challenges involving distributed systems, event-driven architectures, and modern backend technologies.

• Java (8, 17 & 21)
• Python
• SQL

• Spring Framework
• Spring Boot
• Spring Security
• Spring Data JPA
• Spring AI
• REST APIs
• Microservices
• OAuth 2.0
• JWT

• Microservices
• Distributed Systems
• Event-Driven Architecture
• High-Level Design (HLD)
• Low-Level Design (LLD)
• System Design
• Multi-Tenant SaaS Architecture

• Apache Kafka
• RabbitMQ
• Amazon SNS
• Amazon SES

• MySQL
• PostgreSQL
• MongoDB
• Redis
• H2 Database

• AWS (EC2, S3, RDS, SNS, SES)
• Azure (App Service, Azure SQL, Azure Front Door)
• Docker

• Git
• GitHub
• GitHub Actions
• Maven
• IntelliJ IDEA
• Visual Studio Code
• Postman
• CI/CD

• Spring AI
• OpenAI API
• LLM Integration
• Retrieval-Augmented Generation (RAG)
• AI Agents
• Stripe
• Razorpay
• Cashfree
• Salesforce
• HubSpot
• Zoho CRM
• Pipedrive
• Firebase
• MSG91
• WATI

• Java Backend Development
• Spring Boot Application Development
• Microservices Architecture
• Distributed Systems
• REST API Design & Development
• System Design (HLD & LLD)
• Event-Driven Architecture
• Apache Kafka & RabbitMQ
• Secure Authentication & Authorization
• Multi-Tenant SaaS Architecture
• Payment Gateway Integrations
• CRM Integrations
• AI-Powered Backend Development
• Performance Optimization
• Cloud-Native Development
• Docker & CI/CD

• Building scalable and production-ready backend systems
• Designing secure REST APIs for web and mobile applications
• Developing event-driven microservices using Apache Kafka and RabbitMQ
• Integrating payment gateways including Stripe, Razorpay, and Cashfree
• Building subscription billing and recurring payment systems
• Developing CRM integrations with Salesforce, HubSpot, Zoho CRM, and Pipedrive
• Building AI-powered backend applications using Spring AI and LLMs
• Optimizing backend performance using Redis caching and database tuning
• Deploying cloud-native applications on AWS
• Collaborating with cross-functional teams to deliver scalable enterprise solutions

• Advanced System Design
• Spring AI
• AI Agents
• Large Language Models (LLMs)
• Retrieval-Augmented Generation (RAG)
• Cloud-Native Architecture
• Kubernetes
• Platform Engineering

GitHub
https://github.com/ayushstwt

LinkedIn
https://linkedin.com/in/ayshriv

X (Twitter)
https://x.com/ayshriv

Email
ayshriv2k3@gmail.com

Building scalable backend systems with Java, Spring Boot, Microservices, Distributed Systems, and Cloud-Native technologies.