Arin Jain

• Contributed in developing core backend infrastructure for Research-Driven Investment Baskets,while applying idempotency controls to guarantee that no duplicate trades were placed during network drops. • Enforced high code quality standards by authoring comprehensive JUnit test suites, consistently maintaining 80%+ unit test coverage and drastically reducing regression bugs during active Agile sprint cycles. • Integrated Juspay payment workflows, ensuring reliable processing of 4.5L+ in monthly transactions. • Engineered an asynchronous state reconciliation engine using background GCP Cloud Scheduler to automatically poll the Juspay API for transactions stuck in a PENDING state, reduced abandoned/stuck orders by 18% and completely eliminated manual support intervention for dropped webhooks. • Led systematic refactoring of traditional Java components to Java 8 standards, while Identifying and fixing regression errors during the refactoring process that improved code readability and cut redundant logic across 25+ java classes significantly reducing 25% cognitive complexity and 10% cyclomatic complexity of the codebase measured using SonarQube.