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I'm Rahul Bhargava, a full-stack software engineer specializing in Java and Python. I recently completed my Master of Computing with a Computer Science specialization at the National University of Singapore. I bring about 1.5 years of hands-on experience designing scalable, low-latency systems for large-scale software, including a migration from a legacy Java client to a GraphQL-based microservice architecture on AWS, building a React UI for Prime plan visualization, and leading testing and migration initiatives across multiple teams and countries.…I'm Rahul Bhargava, a full-stack software engineer specializing in Java and Python. I recently completed my Master of Computing with a Computer Science specialization at the National University of Singapore. I bring about 1.5 years of hands-on experience designing scalable, low-latency systems for large-scale software, including a migration from a legacy Java client to a GraphQL-based microservice architecture on AWS, building a React UI for Prime plan visualization, and leading testing and migration initiatives across multiple teams and countries.

Rahul Bhargava

Full Stack Developer, Programmer, Web Developer, +3

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I'm Rahul Bhargava, a full-stack software engineer specializing in Java and Python. I recently completed my Master of Computing with a Computer Science specialization at the National University of Singapore. I bring about 1.5 years of hands-on experience designing scalable, low-latency systems for large-scale software, including a migration from a legacy Java client to a GraphQL-based microservice architecture on AWS, building a React UI for Prime plan visualization, and leading testing and migration initiatives across multiple teams and countries.…I'm Rahul Bhargava, a full-stack software engineer specializing in Java and Python. I recently completed my Master of Computing with a Computer Science specialization at the National University of Singapore. I bring about 1.5 years of hands-on experience designing scalable, low-latency systems for large-scale software, including a migration from a legacy Java client to a GraphQL-based microservice architecture on AWS, building a React UI for Prime plan visualization, and leading testing and migration initiatives across multiple teams and countries.

Available to hire

I’m Rahul Bhargava, a full-stack software engineer specializing in Java and Python. I recently completed my Master of Computing with a Computer Science specialization at the National University of Singapore.

I bring about 1.5 years of hands-on experience designing scalable, low-latency systems for large-scale software, including a migration from a legacy Java client to a GraphQL-based microservice architecture on AWS, building a React UI for Prime plan visualization, and leading testing and migration initiatives across multiple teams and countries.

Skills

Experience Level

Expert

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Intermediate

Intermediate

Language

English

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Work Experience

Software Development Engineer, Prime Team at Amazon

March 31, 2023 - August 5, 2025

Focused on lifecycle management of Prime plans for over 200 million subscribers globally. Contributed to migrating from legacy Java-based client-side libraries to a modern GraphQL-based microservice architecture hosted on AWS, resulting in improved scalability and extensibility. Developed a React and Redux UI tool for visualizing over 500 Prime plans used by multiple teams for analysis and debugging. Led design and implementation of a shadow testing framework increasing test coverage from 20% to 80%, and migrated pipelines to Graviton architecture, improving performance and reducing costs by 15%. Coordinated with project managers and stakeholders on projects including marketplace expansion and price change across 8 countries. Architected a Java/AWS automated system to update Prime’s data warehouses, enhancing analytics for business intelligence teams.

Software Development Engineer, Prime Team at Amazon

November 1, 2021 - March 31, 2023

Worked on Prime plan life-cycle management for 200+ million subscribers. Migrated from a legacy Java-based client to a GraphQL-based microservice architecture hosted in AWS, improving scalability and extensibility. Developed a UI for visualizing information of 500+ Prime plans using React and Redux. Led the design of a shadow testing framework for client onboarding, increasing test coverage from 20% to 80%. Migrated pipelines from AL2 to Graviton architecture, reducing operational costs by 15%. Coordinated with project managers and teams across 8 countries. Architected a Java/AWS system for automated updates of Prime data warehouses to provide richer analytics for BI.