Prerak Thakur

I have been leading highly capable, delivery-focused and full-stack development programs within OffersX org of amazon, responsible for ranking millions of offers every minute allowing best offer to be featured on the buy box.

• Launched "Buy-online-pickup-in-store" segment in 21 locales world-wide, allowing customer to see offer available for pickup, reducing delivery time. Led 8 cross-functional teams to build solution, reducing driving distance by 10km and increasing pickup unit lift to 1.8M in US.
• Led an Amazon-wide security and compliance project with 10 internal teams to ensure compliance with the EU's Digital Markets Act (DMA). Developed strategy to drive code changes and launched a campaign to track DMA implementation. Set up a committee to handle Q&A, manage exceptions, and provide legal guidance. Created KPIs and metrics to monitor compliance at both team and global levels. Applied hands-on expertise to resolve technical queries, review code, and test sensitive data. Successfully completed the project within 6 months, ensuring Amazon's regulatory alignment.
• Led a major optimization of a high-traffic API, resulting in a $4M reduction in cloud infrastructure costs. Collaborated with over 50 clients and engineering teams to gather use cases, streamline the API, and reduce compute time by 66%. Directed the end-to-end execution of code changes, driving significant operational efficiency and earning high recognition for the impactful results.
• Spearheaded the development of "Intelligent Filtering", a high-impact initiative within 20 days. The filter eliminated high-friction and less competitive offers on Amazon, significantly enhancing customer trust by showcasing the most cost-effective and fastest options. Launched as a global experiment with 30% traffic coverage, this initiative generated $5M in incremental revenue, demonstrating exceptional speed of execution and delivering substantial ROI.
• Implemented a process of bandwidth rotation to streamline and manage unplanned and urgent-in-nature legal requests, to minimizing disruptions to project timelines and enabling teams to better anticipate and allocate future bandwidth. This process improvement increased sprint velocity by 50%, from 60% to 90%, significantly boosting team efficiency and allowing better estimation on project end dates.
• Delivered monthly "flash" reports to stakeholders and leadership, providing clear updates on project achievements, progress against timelines, challenges, risks, and mitigation strategies. These detailed reports enabled leadership to make data-driven, informed decisions and stay aligned with project goals, ensuring effective stakeholder management and transparency throughout the project lifecycle.
• In addition, to these mentored new hired engineers and TPMs, and participated in interview process.

Leading a large geographically diversified team to deliver scalable SaaS solution, and high-performance APIs. First hand experience of evolving a small 1 server application to a SaaS platform and transitioning legacy systems to modern cloud-based infrastructures.

• Led the implementation and migration of a monolithic 1 server application to a scalable serverless SaaS platform in AWS. The scale served 2K+ hotel and 500 Car rental tenants across 50+ countries, ensuring local and global data compliance.
• Directed the architecture and delivery of 10+ microservices, with API latency less than 100ms for Tier1 services.
• Managed a team of 50+ professionals, including 10 direct reports, overseeing the development of 20+ module in 2 years, empowering 10k+ front-desk agents to track their sales and upselling performance influenced by their human behavior.
• Spearheaded 10+ third-party integrations including various Hotel management system and technical integrations.
• Led the automation of data integration and ETL processes from 20+ diverse data sources, including APIs and spreadsheets, into a proprietary data format. Developed KPIs to monitor data health and implemented automated workflows for real-time data detection and correction, ensuring data accuracy and reliability. The processes handled about 100GB data everyday with 0.2% error rate, due to anomalies.
• Directed the evolution of a data lake to process terabytes of data, reducing report generation time from 3 weeks to 1 hour and empowering business intelligence teams to utilize one stop solution for data needs.
• Managed vendor relationships to ensure timely deliveries, contract compliance, and optimal project outcomes.
• Promoted 5+ engineers, hired 7, and helped 3+ to keep making progress on their career path.

Played role of Sr engineer to lead implementation of high performance, high traffic projects, while managing 5 direct reports.

• Led the end-to-end execution and release of 5 enterprise-level projects, from design to deployment, ensuring timely completion and meting high quality standards.
• Enhanced a mobile application for a hospitality product, increasing user engagement from 3 minutes to 10 minutes per session.
• Directed a healthcare project leveraging AWS and NoSQL, improving patient data processing efficiency by 25%.
• Spearheaded the adoption of Agile methodologies and CI/CD practices, including Jenkins pipelines, to accelerate deployment cycles and boost team efficiency.
• Managed and mentored a team of 20 engineers with 5 direct reports, driving performance, optimizing workflows, and refining development processes to improve code quality and delivery speed.

• Optimized existing software applications to enhance performance and improve user experience, leading to more efficient functionality.
• Led the technical design and development of multiple modules for the LexisNexis project, retrieving, cleaning, and loading data from various sources into XML files for workflow processing.
• Conducted thorough code reviews, enforcing best practices to ensure high-quality standards and scalable software solutions.
• Spearheaded the migration of legacy code to Java Spring framework, leading a team of 3 engineers and modernizing core systems for improved efficiency.
• Collaborated with stakeholders to translate business requirements into effective technical solutions, ensuring alignment with project goals.
• Implemented and maintained unit and integration tests, resolving bugs and performance issues to improve system stability and reliability.
• Developed scalable applications using Agile methodologies, ensuring timely delivery and high-quality outcomes in fast-paced development environments.

• Developed and maintained a Java-based web application for managing railway car billing, focusing on bug fixes, feature enhancements, and troubleshooting.
• Implemented a unit test framework into the build pipeline, reducing production bugs by 40%.
• Mentored freshers and served as an onboarding buddy, guiding new team members through project setup and processes.
• Conducted extensive code reviews, advocating for code quality and helping junior engineers grow.
• Actively invested in learning new technologies like Android, iOS, and PHP to stay current with industry trends.
• Collaborated with management and development partners on software design and project progress, ensuring alignment with business objectives.
• Developed reusable components, reducing development efforts across multiple projects.
• Refactored legacy code-base to improve maintainability and support future updates.
• Consistently met project deadlines by effectively managing time and prioritizing tasks.

• Developed and maintained revenue modules for an in-house intranet application at a pharmaceutical company, generating sales, production, and customer contract reports.
• Utilized Jasper Reports to speed up project delivery and implemented in-house automation, reducing development time for repetitive tasks from 2 weeks to 1 day.
• Conducted thorough testing of modules and participated in bug bashes, resolving over 20 bugs in a single day.
• Consistently met project deadlines by efficiently managing time and prioritizing critical tasks to ensure timely delivery.

• Trained 200+ students on new technologies like JSP and struts to develop performing web application during internship projects.
• Participated in corporate trainings imparting education to armed forces, court staff and government administrative staff on basic usage of technology