Bipin Verma is a senior backend engineer with 4+ years of experience building Java-based backend systems, scalable microservices, and distributed service architectures. Strong focus on the Java ecosystem, Spring Boot, event-driven architecture, Kafka/RabbitMQ messaging, high-concurrency API workflows, transactional consistency, and production-minded backend engineering.

My work centers on designing backend systems that are maintainable, resilient, observable, and ready to evolve across multiple service boundaries. Professional experience includes payment workflows, asynchronous ingestion systems, caching layers, distributed locking, idempotency handling, circuit breakers, retries, bulkheads, distributed tracing, and performance optimization for high-volume backend APIs.

The public repositories here reflect hands-on work across domain APIs, service integrations, authentication flows, Eureka-based discovery, Feign/RestTemplate communication, Hystrix fallback handling, and data-driven Spring applications.

• Distributed service design with Spring Boot and Spring Cloud
• Event-driven backend workflows using Kafka and RabbitMQ
• Microservice communication using OpenFeign and RestTemplate
• Backend scalability through modular service boundaries and asynchronous processing
• High-concurrency transaction handling for checkout, payment, and wallet-style workflows
• API reliability, validation, exception handling, and fallback paths
• Redis-based distributed locking and idempotency-oriented API design
• Circuit breaker, retry, and bulkhead patterns for resilient downstream communication
• Transaction consistency with Spring Data JPA and Hibernate
• Inventory, order, subscription, billing, and review-service coordination
• Security-focused backend development with JWT, OAuth2, Keycloak, and role-based access
• Operational visibility using actuator endpoints, centralized logging, monitoring, and tracing
• Database-backed application design with MySQL, MSSQL, OracleDB, H2, entity relationships, and query patterns
• System reliability through service discovery, failure isolation, and graceful degradation patterns

• Microservice decomposition
• Service discovery
• Event-driven architecture
• Kafka-based asynchronous processing
• RabbitMQ-backed message-driven workflows
• Queue-based decoupling with Amazon SQS
• Declarative service clients
• Circuit breaker pattern
• Retry mechanisms
• Bulkhead isolation
• Fallback handling
• Idempotency
• Distributed locking
• Redis-backed concurrency control
• Stateless authentication
• Role-based authorization
• Transaction management
• Transactional consistency across distributed service workflows
• High-concurrency request handling
• Reactive backend programming with Spring WebFlux
• WebSocket-based real-time communication
• Caching strategy design for read-heavy APIs
• Entity relationship modeling
• REST API versioning and resource design
• Layered controller-service-repository architecture
• Query optimization through derived queries, JPQL, and native SQL
• Domain-driven API boundaries for order, payment, subscription, inventory, review, and user systems
• Operational readiness through actuator endpoints and health visibility

Backend service for telecom user, account, and subscription management. The system evolved from CRUD APIs into a service-integrated application with Eureka registration, Hystrix runtime support, and Feign clients for billing and support-service communication.

Engineering focus: Service discovery, Feign-based downstream calls, circuit breaker support, subscription-to-billing coordination, support ticket retrieval, Spring Data JPA, MySQL.

E-commerce backend split into separate services for catalog items, inventory checks, order placement, and discovery. The architecture demonstrates a transition from monolithic CRUD into a microservice-oriented order and inventory workflow.

Engineering focus: Eureka service registry, item-service, order-service, inventory-service, OpenFeign, Hystrix fallback, MySQL-backed services.

EdTech backend for course, material, enrollment, and payment-related workflows. Later versions introduced service-to-service coordination using Feign and fallback handling around external user and payment dependencies.

Engineering focus: Course domain APIs, enrollment flow, Feign integration, Hystrix fallback, Spring Data JPA, MySQL.

Hotel record management backend with authentication and external rating-service integration. The project includes JWT/security evolution and service communication through RestTemplate.

Engineering focus: Spring Security, JWT, RestTemplate integration, rating-service coordination, validation, MySQL persistence.

Car management backend with JWT authentication, Argon2 password encoding, and review-service integration. The project consolidates the car and review service direction into a single repository line.

Engineering focus: Secure API design, JWT filters, Argon2 password handling, review-service integration, Spring Data JPA, MySQL.

Location-aware pharmacy backend for user management and external medical-store discovery. The project combines JWT-secured APIs with distance-based store lookup flows.

Engineering focus: JWT security, location-aware service integration, external store discovery, RestTemplate, MySQL.

Tax filing backend with user-linked filings, security configuration, and OAuth2/Keycloak login flow. The project demonstrates authentication evolution across basic auth, method security, and OAuth2-backed access.

Engineering focus: Spring Security, OAuth2, Keycloak, user-linked domain modeling, Thymeleaf login flow, MySQL.

Banking backend covering customers, accounts, cards, KYC, and investments with JWT-based security. The project focuses on secure domain APIs and role-aware financial workflows.

Engineering focus: Banking domain APIs, JWT authentication, Spring Security, customer-account relationships, MySQL persistence.

• Scalable service-oriented backend architectures
• Fault tolerance and graceful degradation
• API reliability and predictable failure behavior
• Distributed transactions and consistency boundaries
• Event-driven architecture using Kafka, RabbitMQ, and queue-based integrations
• Asynchronous workflow design for ingestion, notification, and background processing systems
• Distributed locking, idempotency, and retry-safe API design
• Secure identity and access patterns across backend services
• Observability, distributed tracing, service health, and runtime diagnostics
• Performance engineering in Java and Spring-based systems

• Kubernetes fundamentals for backend service deployment
• JVM tuning and memory behavior
• Observability patterns for Spring Boot services
• Distributed transaction patterns and consistency trade-offs
• Scalability patterns for service-to-service systems
• Kafka/RabbitMQ reliability patterns for event-driven systems
• Performance engineering for Java APIs

• LinkedIn: linkedin.com/in/bipin-verma-iiits
• Email: dev.vermabipin@gmail.com
• LeetCode: leetcode.com/u/byte2code