Mandar Jadhav

About Mandar Jadhav

Hi, I\'m Mandar Jadhav Senior Software Developer at Barclays with 4+ years of experience and a passion for building scalable and efficient backend solutions. With a solid foundation in Computer Engineering from PICT, I leverage my expertise in the Java ecosystem to deliver applications that are high-performing, maintainable, and cost-effective.My key areas of contribution include- Developing Robust Microservices: Architecting and building services using Java, Spring Boot, and Hibernate- Performance Optimization: Significantly reducing application latency and infrastructure costs by optimizing database interactions and REST calls- Scalable System Design: Designing maintainable and extensible systems following SOLID principles, utilizing messaging queues like Apache Kafka and IBM MQ for asynchronous communication- DevOps & Monitoring: Deploying and managing applications on OpenShift and using the ELK Stack for logging and monitoring.I am driven by the challenge of solving complex technical problems and am always eager to learn and apply new technologies to achieve business objectives.Core Competencies:Java | Spring Boot | Microservices | Hibernate | REST APIs | Apache Kafka | IBM MQ | Algorithm Design | Database Optimization | OpenShift | ELK Stack | System Design | Agile Methodologies

Experience

1. Senior Software Developer (Ba4)

   Barclays

   Mar 2025 — Present · Pune, IN

   Designed and developed robust REST APIs leveraging OpenAPI, Hibernate, OpenFeign, Kafka, Redis, Oracle SQL, and JWT, ensuring secure, scalable and maintainable backend services. Decommissioned costly legacy jobs by developing a critical Spring Batch application on OpenShift CronJob, cutting infra cost by 80% and reducing query execution time by 60%. Implemented a coarse-grained authorization filter in Spring Cloud Gateway to block unauthorized cached URLs, ensuring real-time entitlement validation and security compliance. Worked on SSO mediator service acting as a bridge between IDP applications and service providers, enabling seamless sign-in across multiple tenants and improving authentication consistency.

Education

• Pune Institute of Computer Technology

  Bachelor of Engineering - BE, Computer Engineering

  2017 — 2021

• Sanjay Ghodawat Institute

  12th

  2015 — 2017