Khushboo Kumari

About Khushboo Kumari

I’m a Software Development Engineer II | Technical Lead passionate about building scalable, customer-focused systems. I specialize in backend development, full-stack solutions, subscription management, multi-currency finance, and localization (i18n), delivering impactful features across Audible and Amazon teams.At Audible, I’ve led cross-team projects end-to-end—from frontend design to backend architecture—including currency-of-preference systems and Amazon Prime Free Book features, designed for high traffic, maintainability, and easy international expansion. I also mentor teams and serve as Scrum Master, driving agile practices and system reliability.Beyond core development, I explore Generative AI, developer productivity agents, and prompt engineering, running workshops, Q&A panels, and mentoring sessions to help teams leverage AI for smarter, faster development.Skills & Expertise:Python | Java | Backend & Full-Stack | Microservices | AWS | DynamoDB | iOS/Android Apps | Subscription Systems | Payment Processing | Multi-Currency Finance | Localization | Agile/Scrum | Generative AI | Prompt Engineering | Technical Leadership

Experience

1. Software Development Engineer Ii

   Audible

   Mar 2019 — Present · Newark, NJ, US

   Led development of scalable software solutions for international markets, integrating localization (i18n), multi-language support, and regulatory compliance, enabling smooth global expansion.Designed and implemented multi-currency accounting and settlement system, supporting tax compliance, regional bookkeeping, and international financial operations, reducing operational complexity.Engineered backend systems for iOS and Android subscription management, including tiered memberships, recurring billing, payment processing, and subscription analytics, improving user retention and revenue generation.Led design and implementation of currency-of-preference feature, enabling customers to purchase in local currency using dynamic forex rates, integrating purchasing, accounting, banking, and PBO systems across Amazon and Audible teams.Technical lead for Amazon Prime Free Book feature (Mexico): Enabled Prime customers to get 1 free book per month, designing eligibility, purchasability, scaling, and high-traffic backend systems, and coordinating multiple teams to ensure maintainable, market-configurable launch.Consolidated multiple legacy backend services into a single, maintainable system, improving operational efficiency and system maintainability.Scrum Master and technical mentor, facilitating daily stand-ups, sprint planning, reviews, retrospectives, and managing on-call rotations, triaging, and production support to ensure reliable system performance.On-call rotations with duties like triaging and production issues.

Education

• Stony Brook University

  Master's degree, Computer Engineering

  2017 — 2018

• Siksha 'O'​ Anusandhan University

  Bachelor's degree, Electrical, Electronics and Communications Engineering

  2010 — 2014

• Rajendra Vidyalaya

  senior secondary, Computer Science

  2008 — 2010