Shivam Kumar
SDE @Amazon | Ex - Cisco | Expert @codeforces | Knight @LeetCode | Bit Mesra’24
- Role
- Software Engineer at Amazon
- Location
- Bengaluru, KA, IN
- LinkedIn followers
- 500 followers
About Shivam Kumar
Software Engineer at Amazon, passionate about building scalable systems and impactful user experiences.I focus on solving performance and product challenges end-to-end — from backend design to real-world impact. At Amazon, I improved marketplace performance by 60% through optimized feed loading and dynamic pricing systems.Previously at Cisco, I focused on network automation and performance optimization, leading a major migration from IXIA to TRex and cutting VLAN operation time by 3× across switches.I’m also deeply interested in algorithms and problem-solving — rated Expert (1665) on Codeforces and Knight on LeetCodeAreas of Interest: System Design, Product Scalability, Microservices, and Performance Engineering.
Experience
Software Engineer
Jun 2025 — Present · IN
Enable Feed on Cart for Amazon Bazaar Users: Implemented lazy loading using JavaScript and Intersection Observer API to defer cart feed content loading, reducing initial page load time by 60% and enhancing mobile user experience.• Optimized resource utilization and improved UI responsiveness by dynamically loading product feeds during user scroll, boosting user engagement and performance metrics.• Implement COD Fees for Bazaar Customers: Developed a dynamic fee calculation system with Java, RESTful APIs, and payment gateway integrations to apply real-time COD fees based on order value and region, automating fee management.• Reduced manual processing and COD-related order cancellations by streamlining fee application and validation, improving transparency and operational efficiency.
Education
Birla Institute of Technology, Mesra
Btech
2020 — 2024
De Nobili School
10
2006 — 2017
Doon Public School Dhanbad
12
2017 — 2019
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