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Pradip User

@pradipuser

Message

Senior Backend Engineer with 4+ years building high-throughput, low-latency distributed systems.

India

Message

What I'm looking for

I’m looking to lead backend systems that handle millions of events per day—Java/Spring microservices, Kafka-driven pipelines, and cloud-native reliability—with room to optimize performance, improve resiliency, and ship through strong CI/CD.

I’m a Senior Backend Engineer with 4+ years of experience designing and building high-throughput, low-latency distributed systems. I specialize in Java 21, Spring Boot, Apache Kafka-based event-driven architectures, and Microservices.

I’ve built and scaled backend platforms handling millions of daily transactions, with a proven track record of 30–40% performance improvements. I focus on fault-tolerant, highly available systems using cloud-native architectures with AWS and Kubernetes.

I design Kafka-driven pipelines with optimized partitioning strategy, consumer groups, and offset management to enable real-time processing. I also implement resilience patterns like circuit breakers (Resilience4j), retries, and bulkhead strategies, plus API gateway protections such as rate limiting and throttling.

I build with clear quality gates—CI/CD, Docker, and strong testing discipline with 80%+ unit test coverage. I’m excited to bring that same performance mindset and reliability focus to teams that value scalable distributed systems.

Experience

Work history, roles, and key accomplishments

Current

Senior Backend Engineer

Current

Walmart Global Tech India

May 2025 - Present (1 year)

Architected high-scale backend services for supply-chain order processing, handling millions of daily transactions using Java 21, Spring Boot, Apache Kafka, and Netflix DGS GraphQL. Improved resilience and delivery velocity by implementing Kafka-based event processing, rate limiting, Resilience4j circuit breakers, and CI/CD with 80%+ unit test coverage, reducing feature delivery time by 20%.

Java 21+Spring Boot Apache Kafka Microservices Resilience4j Docker CI CD API Rate Limiting Elasticsearch

Senior Backend Engineer

Collabera Digital

Apr 2024 - May 2025 (1 year 1 month)

Built Kafka-based microservices for financial data ingestion, validation, and reconciliation on the DELPHI Financial Platform. Reduced API latency by 30% using multi-layer Redis caching and database query optimization, and improved resiliency with Resilience4j and Kong API Gateway.

Java Spring Boot Apache Kafka PostgreSQL Redis Resilience4j Kong API Gateway Microservices Performance Tuning Event Streaming

Software Engineer Backend

Subex Limited

Nov 2022 - Mar 2024 (1 year 4 months)

Automated telecom partner onboarding, billing disputes, and settlement workflows for the ROCPS engine, reducing manual operational effort by 40%. Increased Apache Kafka async throughput by 40% using partition tuning, message batching, and producer optimization, and delivered operational observability with Grafana and Spring Boot Actuator.

Apache Kafka Microservices Partitioning Message Batching Grafana Spring Boot Actuator Distributed Systems Load Balancing

Backend Software Engineer Intern

Nextech Services Pvt. Ltd.

Jun 2022 - Nov 2022 (5 months)

Developed patient record and scheduling microservices for a Hospital Management System, delivering secure, versioned REST APIs with RBAC-based authentication and input validation. Supported 1,000+ monthly active users and implemented backend services following microservices best practices.

Microservices REST APIs RBAC Java Spring Boot