Aug 2019 – Sep 2024 · 5 yrs 1 mo · Gurugram, Haryana, India

• Led the Reservation Modification program, driving the identification of essential high and low-level changes to support all usecases, and successfully managed its end-to-end delivery.
• Successfully led the end-to-end Expiring NotificationIDs project, ensuring the continued operation of partner notifications at Expedia. This project prevented potential problems that could have led to revenue loss and damaged customer and partner relationships.
• Designed a system to enable the Control Plane to interact with the Reservations system, which involves Partner information necessary to fulfill reservations, such as Point of Sale information.
• Developed the Reservation domain's Search API, which provides booking information and actions such as Reconciliation Eligibility information.
• Designed the Unified Update API, which consolidates and unifies the Reconciliation Logic for Vrbo and Expedia bookings in the booking domain.
• Worked on masking customer emails while sending notifications to Partners
• Developed a system that uses partner admin email addresses to contact partners for non-retryable errors.
• Revamped and developed the BNOS Status/Resend Monitor to handle error handling of Supplier Notification.
• Designed and developed the Group-Recon-Bot to reconcile bookings in bulk, and redesigned the Notification database trim job to delete old entries and improve overall efficiency.
• Re-architected the BNOS Notification API Workflow to enable clients to send notifications asynchronously
• Improved the Booking notification service's retry mechanism, non-retryable error handling(priority queue), notification API latency issues, and overall service health.
• Resolved multiple critical bugs in the system, including masking sensitive information (such as customer credit card data) from the Notification workflow, fixed multiple configuration-related bugs, and provided on-call support.
• Conducted interviews with potential candidates and mentored team members.

Jun 2017 – Jul 2019 · 2 yrs 1 mo · Gurugram, Haryana, India

• Migrated Atlantis system (written in C++) to NGB (Next Generation Booking) stack which handles hotel bookings/cancellations/retrievals/changes.
• Worked on over 20 microservices, utilizing Java, Lambdas, SQS, SNS, Kinesis, SQL, NoSQL (Redis, DynamoDb), and DevOps (CI/CD, deployment).
• Implemented Localized Notifications in 32 languages for partners, and developed the Notification workflow that is sent to partners (2M+).
• Developed a feature for non-English customer details input, allowing customers to provide their information in their native language.
• Implemented a Centralized Caching solution for all NGB microservices and bots by storing ~100GB of Room Rate details information in Redis and setting up the Redis cluster.
• Optimized Redis memory usage by implementing a HashMap data structure, reducing data size from ~100GB to ~20GB.
• Built Lodging Booking event publisher service to notify different teams about updates happening on orders.
• Worked on several APIs to fulfill requests related to Create, Prepare Purchase and Commit, Financial Adjustment, Hard Change, and Soft Change.
• Developed StoreCVV/Delete CVV workflow, including CVV tokenization functionality.
• Conducted DevOps work, setting up Grafana and Splunk alert and dashboard CI/CD pipeline, Jenkins job for automated deployment, Vault, and Docker deployment.
• Resolved multiple high priority bugs and provided on-call support.
• Conducted multiple POCs on AWS technologies, such as Lambda, DynamoDB, Amazon API Gateway, SNS, SQS, S3, and more.
• Improved NGB alerting and utilized the Splunk Machine learning toolkit.

Apr 2017 – May 2017 · 1 mo · Gurugram, Haryana, India

• As a member of the Snapdeal core Order verification team and Fraud Management team, responsible for building new features and maintaining existing ones using Java, Spring, Hibernate framework, MySQL, and Aerospike.
• Implemented Blacklist related API and moved the blacklist data into Aerospike from MySQL database

Jul 2015 – Mar 2017 · 1 yr 8 mos · Gurugram, Haryana, India

• Implemented Blacklist related API and moved the blacklist data into Aerospike from MySQL database
• Developed a System for Whitelisting and Blacklisting customers.
• Developed a Rule Engine to take action on for specific customers.
• Implemented a Decision Matrix to determine the appropriate action based on the level of risk.
• Developed a centralized cache using Aerospike (NoSQL Database) and built a Spring-Aerospike Client library on top of the Aerospike Java client for Snapdeal.
• Improved customer experience by implementing order duplicate checks, blacklisting customers, OTP validation, and automated order verification calls.
• Created a Dynamic Configurable Value System that maintains the flag and configurable value of every feature.
• Developed a Generic Table Editor for CRUD (Create, Read, Update, Delete) operations.
• Created a centralized Panel and Report for Data Analysis of RTO (Return To Origin) Orders and the Order Verification System.

Jun 2014 – Jul 2014 · 1 mo

• Developed a responsive WordPress theme utilizing PHP and Bootstrap UI.