• Led the engineering organization; a distributed team of about 30 React, React-Native and Node developers; with 3 engineering managers, and 4 Staff engineers• Scope encompassed the company website and mobile apps, the ecommerce systems like Catalog, Account and Subscriptions Management, Billing and Payments, Order Management, and Fulfillment• Spearheaded a company-wide tech re-platform journey. Set the strategic technical direction to achieve the business goals and brought the team along. With bold bets and calculated risks, delivered the architecture for the next 3-5 years. Early wins include reducing response time to 1.8 sec, deleting 90% of code with a focus on strategic differentiators, and alignment upon common technologies through the entire stack• Delivered a Content Rendering Engine that solves for the A/B testing and DS/ML needs, makes the front-end a renderer for content spec, and empowers the Merchandising team to operate independently• Built a Correction of Errors process with on-call rotations, prod incident SOPs, exec comms and five-whys postmortems • Aligned the engineering career ladder with the rest of the company. Created a growth path for individual contributors

• Responsible for the Daily Harvest website and mobile apps; 3 teams of total 20 React and React-Native engineers, with 2 engineering managers and 2 Staff engineers• Built a Platform team to rearchitect the web and apps codebases, while continually solving for collaboration• Migrated the web codebase off Angular and to React, deleting 30K lines of code, reducing the bundle size by 60% and response time by 6 seconds• Partnered with Product leaders to start semi-annual Planning and Prioritization to reduce thrash, streamline the decision-making and clarify the lines of ownership across the company• Quantifying and systematically improving the teams’ shipping ability and shipping predictability

• Led Store Pickup, Money Services and Health and Wellness engineering; 3 teams based out of US and India, total 36 Android, iOS, React, Node and Java engineers, and 3 engineering managers• Delivered the Check-in solution for multi-location pickup for Black Friday 2020• Pioneered the use of inner-sourcing – kicked off the Digital Wallet strategy by delivering Chase Pay integration for Walmart Pay out of a single team working across all necessary codebases; feature exceeded launch KPI by 150%• Built and deployed Pickup Automation applications to all Walmart stores; 4400+ devices, 20K+ check-ins per day• Built a foundational shared layer for Health and Wellness mobile applications; this brought isolated efforts under one framework, sped up development, shortened learning curve, and facilitated code reuse• Rolled out centralized patient records to 5000+ stores, with a focus on monitoring, alerting and production support• Deployed an app to simplify prescription filling to 900 stores; new workflow saved 30 minutes per store per day• Defined and instrumented engineering and Product SLOs, and monitoring, alerting and support for prod services

• Led engineering for Pickup, Pharmacy and Store Maps• Built Store Maps from the ground-up and rolled out the capability to 5000+ stores • Achieved a 300% increase in Store Pickup Check-in adoption by incorporating quantitative and qualitative feedback and iterating over the experience• Built and iterated on the hiring process; successfully hired and retained key engineers• Delivered Store Assistant, the new platform for in-store features; by A/B testing to arrive at an optimal experience • Ensured platform specific UX by closely collaborating with UX leadership

• Built several features for the Walmart Android app, focusing on the in-store use-cases• Delivered improvements for Store Pickup like location-based automatic check-in and scalable UX architecture• Delivered Send and Receive Money capabilities for Money Services by building out a services-driven UI• Added Fingerprint authentication for Walmart Pay• Improved location detection by switching over to geofences from home-grown implementations• Collaboratively designed the backend service responses, bringing the client engineer’s perspective

• Developed Good Work – the flagship product for securely syncing email, calendar and contacts and other data on mobile devices [play.google.com/store/apps/details?id=com.good.gcs]• Leveraged AOSP and Good's secure mobility SDK, and implementing additional features• As the team lead, worked closely with Product Management to understand and drive requirements, and working with the team for Sprint planning, grooming and executing• Collaborated with UX for reviewing specs, providing engineering perspectives and ensuring platform-specific design• Was instrumental in setting up two offshore teams, continued to mentor and coordinate with the offshore team members for timely delivery of features and fixes• Delivered the Wearable extensions for Good Work and working on companion wearable apps• Developed Android Auto expertise and explored Google Glass SDK• Worked on an app for two-factor authentication using mobile devices • Served as Scrum master for over six months, in addition to being a developer

• Developed next-generation Android-based control device for Cisco TelePresence, following agile and lean development practices• Designed, implemented, tested and deployed the automated application provisioning solution for the Android devices - a system application to install, update and uninstall applications on devices remotely via an admin interface• Led Android Compatibility Testing for the control devices• Wrote design documents, test plans, and strategy documents• Provided support for Alpha test program• Closely collaborated with User Interface design teams and other Android teams within Cisco• Achieved feature parity with existing control device within 3 months• Developed the Meetings application and widget for displaying time-sorted list of meetings for the conference room, navigating between days, and joining an ongoing meeting with a single button push• Developed an application for switching TelePresence video streams between screens

• Master's Thesis: Smartphone-based Fall Detection and Alerts Generation System- Developed an Android application to detect if the user has suffered a fall and generate alerts- Developed an algorithm for real-time fall detection using accelerometer and magnetic sensor input and a multilayer perceptron classifier- Developed the alerts generation system to generate alerts like audible sound and text messages and emails to selected contacts, with user’s location information and hospitals in the vicinity• Projects:1. Stalk N' Steal: [youtube.com/watch?v=PovAQN7yhhk]Developed an Android app that runs a thread to steal user’s personal data and periodically transmit user’s location to a remote server, while being innocuous on the surface2. Secure Peering: [youtube.com/watch?v=F_7LO6oGwl8]Used Android phones to demonstrate a secure peering protocol. Protocol establishes a link key between connecting devices using mechanism similar to Bluetooth Secure Simple Pairing with Man-in-the-middle protection; establishes SSL session for data transfer between connected devices using self-signed certificates exchanged using link key3. Walkie-Talkie: [youtube.com/watch?v=Gz8_Vl4309k]Developed a Push-To-Talk Walkie-Talkie Android app for real-time audio communication over TCP/IP network between a pair of devices 4. nearby: [youtube.com/watch?v=H6YL6mjEpo4]Developed a location-based Windows Phone 7 app that finds places of interest in user’s vicinity and plots a route on the map from user’s current position to selected destination5. Distributed Peer-to-Peer File Sharing System:Client authentication, message passing between client and server, search, and file download

• Designed, implemented and tested an applet for displaying and exploring a remote file system in the web browser as part of the Clientless SSL VPN feature of Cisco ASA • Used technologies like Java applets for deployment, Java Swing for UI, SSL for connection, WebDAV for communication and JAXP for parsing • Wrote design document and recorded code walkthrough videos for the team

• Analyzed the software defects in BGP code in Cisco IOS, found and implemented solutions for them • Fixed high-severity issues found in the customer deployments

• Designed, implemented a mechanism that gauged network conditions using ICMP Echo for SLA conformance • Designed, implemented and tested AutoQoS, a feature for carrying out preset QoS configurations on a router