Yuvaraj Nallasamy

TPF Technical Lead and Senior Developer for the Central Reservation Application development team, with the following key responsibilities,

• Collaborate with Product and Business teams to capture functional and business requirements, and derive corresponding technical requirements.
• Analyze existing application architecture and functional behaviors in detail.
• Conduct comprehensive risk and impact assessments for new features, integrations, and program initiatives.
• Perform detailed application analysis and develop technical solutions along with complete low-level design documentation.
• Present technical solutions and detailed design documents to Engineering and Product teams for review and approval.
• Align technical solutions and dependencies with upstream and downstream applications, interfacing with the Central Reservation System (CRS).
• Estimate development, QA effort, cost, and implementation timelines for project delivery.
• Perform development and unit testing activities in accordance with approved technical designs.
• Provide day-to-day technical and functional guidance to the development team, ensuring timely and quality deliverables.
• Conduct detailed code reviews, and manage deployments across TEST, PERF, and PROD environments.
• Execute code-level performance testing to validate system performance against expected benchmarks, and document results.
• Provide development support during QA and UAT phases.
• Prioritize and resolve QA/UAT defects to maintain delivery timelines and quality standards.
• Conducted production implementations and functional activations, while ensuring robust post-deployment support.

Key Achievements

• Delivered multiple high-priority and complex Central Reservation Systems projects with zero production impact.
• Integrated new mergers and acquisitions with unique property management systems and payment interfaces.
• Implemented Multi-Gateway Credit Card Tokenization supporting diverse token providers.
• Improved ARI (Availability, Rates, Inventory) performance for accurate OTA distribution, which yielded a 9% increase in booking success rate for the OTA partner.
• Delivered numerous business, legal, and security-driven enhancements across Central Reservation Systems.
• Received multiple awards from Client Sr. Directors, VPs, Senior VPs, and CIO.

Senior Developer for Walgreens Pharmacy application development projects, such as Rx Renewal Integration and IC+ Last Mile.

Below are the responsibilities,

• Gathered business and functional requirements in an Agile/Sprint model.
• Performed feasibility studies and estimated development effort.
• Analyzed the existing application architecture and functional behaviors.
• Conducted risk and impact analysis for new features and integrations.
• Prepared HLD/LLD documents, and secured technical approvals.
• Developed code using Pro*C/C++, PL/SQL, REST services, and Embedded SQL.
• Created UNIX shell scripts to automate integration workflows.
• Performed peer reviews and ensured compliance with quality standards.
• Deployed code across DEV, TEST, PERF, and PROD environments.
• Prepared and executed unit test plans.
• Participated in defect triage meetings, and resolved QA/UAT defects.
• Monitored production features, and resolved application-related issues.

Senior TPF Developer at Core Central Reservation Systems Application Maintenance and Support.

• Led the production system support team as 'Programmer of the Week.
• Ensured 24/7 stability, availability, and performance of the Central Reservation Systems platform.
• Analyzed and resolved problem tickets with optimal code fixes.
• Gathered business and functional requirements, and translated them into technical solutions.
• Conducted risk and impact analysis, and reviewed functional specifications.
• Prepared HLD/LLD documents, and secured engineering approvals.
• Developed new features and enhancements across multiple interfaces and platforms.
• Executed deployments across DEV, TEST, PERF, and PROD environments.
• Created and executed unit test plans, and validated performance benchmarks.
• Resolved QA/UAT defects, and supported production releases.
• Addressed production issues promptly to maintain system reliability.

Key Achievements

• Resolved high-priority, complex incidents, maintaining the uninterrupted functionality of Central Reservation Systems.
• Contributed to major initiatives, including the Marriott-Starwood merger and new brand acquisitions.
• Delivered critical enhancements and problem fixes, directly contributing to business objectives.
• Implemented performance improvements, achieving significant cost savings.
• Received 'Best Performer' awards and client appreciations.