Java Backend & Microservices Engineer (4+ yrs)

ABHILASH BUSIREDDY

Java Backend / Microservice Engineer

AUSTIN, TX 913-***-**** ********.******@*******.*** LINKEDIN Summary

Java Backend / Microservices Engineer with 4+ years of experience designing scalable, fault-tolerant, cloud- native backend systems for retail and e-commerce platforms. Expertise in Java 17, Spring Boot, event-driven microservices, and distributed systems supporting checkout, order management, inventory, pricing, and payments. Proven ability to improve latency, throughput, and reliability for transaction-heavy workloads on AWS and Kubernetes.

Core Technical Skills

Languages: Java 17, SQL, TypeScript

Backend & Architecture: Spring Boot, Spring MVC, Spring Security, Hibernate/JPA Architecture: Microservices, REST APIs, Event-Driven Architecture, Distributed Systems Cloud & DevOps: AWS (EC2, S3, RDS, Lambda, IAM), Docker, Kubernetes, Jenkins, GitHub Actions, Terraform Databases: PostgreSQL, MySQL, MongoDB

Messaging: Apache Kafka, RabbitMQ

Testing & Practices: JUnit, Mockito, CI/CD, System Design, Agile Scrum, OWASP Security Professional Experience

Microservices Engineer, McKinsey & Company Feb 2025 – Present

• Designed and owned scalable Java microservices using Spring Boot to support high traffic retail and e commerce platforms processing thousands of concurrent transactions.

• Built low latency REST APIs for product catalog, pricing, checkout, and order management, consistently achieving sub 200ms response times for customer facing services.

• Migrated legacy retail systems to AWS based microservices, enabling horizontal scaling and maintaining 99.9% uptime during peak sales and promotional events.

• Implemented Kafka based event driven workflows for order placement, inventory reservation, fulfillment, and notifications, improving system throughput by 30% and reducing synchronous failures.

• Optimized PostgreSQL and MySQL queries, indexing strategies, and Hibernate mappings, reducing checkout and order API latency by 40% and improving customer conversion.

• Built and maintained CI/CD pipelines using Jenkins, Docker, and Kubernetes, enabling zero downtime deployments and faster release cycles.

• Secured customer, order, and payment APIs using Spring Security, JWT authentication, and RBAC, adhering to OWASP best practices.

• Designed fault-tolerant APIs with retries, idempotency, and graceful degradation to handle downstream service failures.

• Implemented horizontal scaling strategies using Kubernetes HPA to support flash sales and seasonal traffic spikes.

• Collaborated with product managers, frontend engineers, and DevOps teams in Agile Scrum environments to deliver features aligned with retail business KPIs. Software Developer, Avenir Technologies Jan 2020 – Jul 2023

• Developed and maintained Java based backend services using Spring Boot and Hibernate for retail and business applications with high concurrency requirements.

• Refactored a monolithic retail backend into independently deployable Spring Boot microservices, reducing release failures by 50% and improving deployment stability.

• Designed and exposed REST APIs integrating ERP, CRM, payment gateways, and third party logistics providers, improving data accuracy by 25%.

• Implemented asynchronous order and inventory processing using Kafka and RabbitMQ to support scalable, decoupled retail workflows.

• Tuned SQL queries, stored procedures, and batch jobs, reducing nightly order and inventory processing times by 45%.

• Increased automated test coverage to 85% using JUnit and Mockito, significantly reducing production defects during seasonal sales peaks.

• Partnered with QA and DevOps teams to support production releases and resolve performance bottlenecks in customer facing systems.

Education:

Master of Computer Science, University of Central Missouri Certifications:

AWS Certified Developer – Associate

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