Ketan

Ketan Khandelwal-| - | linkedin.com/in/ketan-khandelwal2201/ github.com/ketan4u About Me Software Engineer with 5 years of experience building scalable microservices in Java and Spring Boot. Passionate about clean architecture, API optimization, and delivering robust systems that drive real product impact. Thrive in fast-paced teams that value ownership and thoughtful engineering. Skills Languages: Java, Python, JavaScript, SQL Frameworks & Databases: Spring, Hibernate, J2EE, JSP, Oracle DB, PostgreSQL, MySQL, Redis Cloud & Infra: AWS, Docker, Git, JMeter, Linux Concepts: Distributed Systems, Microservices, Modular Monolith, System Design, Rate Limiting, Caching, CI/CD Core Strengths: Cross-functional teamwork, Empathy, Open communication, Customer-first mindset Experience Jan 2022 – Present Software Engineer, PureSoftware Technologies, Gurugram • Drove impactful new feature developments, enhancements and optimisations for Global Order Lifecycle • • • • • • • Delivery(GOLD), the client’s mission-critical global sales order entry and lifecycle management product. Supporting 44000+ users worldwide, GOLD streamlines customer and contract management, automates workflows, and integrates seamlessly with 20+ applications. Key contributions included feature development, code maintenance, RESTful API development, rigorous unit testing, and user interface improvements. Managed Microservices for another application which was the Order Intake Tool. Optimized APIs, cutting latency from 300ms to 150ms and reducing database costs by 25%. Led code reviews, promoted best practices, and mentored team members in a distributed, Agile environment. Daily user of Jira and Confluence for project tracking, documentation, and Agile ceremonies. Contributed to team hiring efforts, conducting 20+ technical interviews. Tech stack: Java, Springboot, Oracle DB, JSP, Javascript, AWS, Hibernate, SOAP, PostgreSQL, Git. Software Backend Developer, Reliance Jio, Navi Mumbai Jul 2019 – Nov 2021 • Designed, Developed and Deployed scalable services for the MyJio ecosystem, while developing and managing • • • • • • 70+ APIs to ensure high availability, scalability, and performance. Collaborated with product managers and designers in an open, distributed team environment to deliver features with real customer impact. Developed and designed scalable services for customer, admin, and operations dashboards, doubling TPS from 150 to 300 requests / sec for improved performance and stability. Responsible for Managing weekly code releases and conducting code reviews to ensure quality and efficiency. Implemented Hibernate to improve search performance. Enhanced API performance with Redis caching, reducing response times by 40%. Tech stack: Java, Springboot, Oracle DB, SQL, AWS S3, Postman, Redis, Git, Jmeter, Linux. Impacts and Key Achievements • Optimized legacy code and reduced the recurring production issues by 90% at PureSoftware. • Reduced API latency by 50% and database cost by 25% via performance tuning at Jio. • Led code reviews, mentored teammates, and helped hire and onboard new engineers in teams. Education Indian Institute of Technology, Roorkee, Bachelor of Technology Jul 2015 – May 2019 Certificates Google Project Management Professional Certificate - Coursera Machine Learning Specialization - DeepLearning.ai Nov 2024 Mar 2023