Java Backend Engineer • 3 Years • Microservices & Event-Driven Architecture

 About Me

My name is Shubham Bhati and I am a Java Backend Engineer specializing in Spring Boot, microservices and event-driven architectures. I build high-throughput, enterprise-grade systems with 3+ years of experience.

• 🔧 Distributed Microservices: Building scalable event-driven architectures utilizing Apache Kafka.
• ⚡ Performance Optimization: Optimizing API latency and caching layers with Redis.
• 🤖 AI Integration: Integrating OpenAI and Gemini APIs for backend automation pipelines.
• 🚀 Robust Delivery: Architecting low-latency transactional platforms and secure REST APIs.

 Experience

🔷 MobilePe — Java Spring Boot Developer
_{Fintech & Payment Systems • Jun 2026 - Present • Noida, India}

• 🚀 Event Streaming: Engineered and optimized Apache Kafka async pipelines; successfully resolved production-level consumer lag issues by tuning thread and polling concurrency.
• ⚡ Latency Caching: Designed Redis cache handlers and read-through caching engine structures for SOR checks to minimize primary DB load.
• 🛡️ Resource Isolation: Configured a separate, dedicated database routing architecture (Multi-Datasource Config) to isolate heavy reporting exports from core transaction pools.
• 🏗️ Transaction Routing: Designed a polymorphic transaction handler routing system supporting 20+ payment handler types (ATM, Refund, PosReversal).

🔷 AlignBits LLC — Software Engineer
_{Justransform iPaaS Platform • Sep 2024 - May 2026 • Dubai, UAE (Remote)}

• 🏗️ Scale: Designed transformation orchestration engines for logistics iPaaS pipelines handling REST, SFTP and AS2 data protocols across 10+ client pipelines.
• 🤖 AI Automation: Built OpenAI-powered pipeline for automated EDI/JSON validation — **reduced manual debugging by 30%**.
• ⚡ Reliability: Resolved 15+ high-priority production incidents through system debugging and root-cause analysis.
• 📨 Async Processing: Leveraged AWS SQS and RabbitMQ for decoupling event-driven transaction processing at scale.
• 🔐 Security: Migrated microservices from Java 11 to Java 17 and integrated OAuth 2.0 JWT Spring Security.

🔷 IHX Private Limited — Associate Software Engineer
_{Healthcare Claims Processing • Jun 2023 - Aug 2024 • Bengaluru, India}

• 🏥 Healthcare Backend: Built JSON-to-FHIR data transformation engines processing high-frequency healthcare claim records.
• 📈 Query Optimization: Optimized Hibernate ORM mappings and database index keys, improving query latency on core insurer endpoints.
• ✅ Validation Pipelines: Developed multi-layer validation pipelines and custom exception-handling frameworks.

🛠️  Tech Stack

Java	Spring Boot	Spring Security	Hibernate	REST APIs
Apache Kafka	Redis	RabbitMQ	AWS SQS	PostgreSQL
MySQL	MongoDB	OpenAI API	Gemini API	Docker
Git	JUnit 5	Postman	Python	Bash

📊  GitHub Stats

✍️  Recent Blog Posts

🔷 Stop Holding DB Connections Hostage — 2026-07-13 🔷 Redis as a Spring Boot Session Store: Speed Up Your Apps — 2026-07-12 🔷 Stop Letting HikariCP Kill Your Cheap VPS — 2026-07-11 🔷 Spring Boot Validation: Don't Reinvent the Wheel — 2026-07-11 🔷 Stop Manual JSON Parsing in Spring Boot — 2026-07-11

📬  Let's Connect