Aug 2022 – Sep 2024 · 2 yrs 1 mo · Noida, Uttar Pradesh, India

• Responsibilities include:
• o Leading the team for various challenging and complex projects right from project planning to
• market release.
• o Actively managing and mentoring team members, conducting code reviews, and collaborating
• closely with cross-functional teams to deliver high-quality projects on time.
• o Adding new features and flows for already launched devices and keeping those compliant with
• regulatory norms.
• o Extensive POCs, creating proper documentation and unit testcases sheet for development of
• payments application for new device.
• Major Projects:
• 1) Did POC and successfully implemented changes for moving all Https requests for our application to limited number of URLs. It was a challenging task to test the feasibility of moving vendor provided URLs to our proxy server and then integrating the vendor provided SDK changes with existing codebase without impacting any live transacting devices.
• 2) As per regulatory compliance, all data that is transmitted over network from POS machines must be encrypted using secure cryptography techniques. Earlier we were using single key to encrypt both card data and PIN, which could have compromised customer’s sensitive data. Successfully changed this implementation to use 3 TDES keys instead of 1TDES key and implemented rollback mechanism to migrate devices back, in case of any issues.
• 3) Enhanced EMI transaction flow to use single REST API for all types of transactions. This involved migrating existing devices from old Database schema to new schema, creating new JSON parsers and serializers, UI screens for the EMI flows.

Apr 2020 – Aug 2022 · 2 yrs 4 mos · Noida, Uttar Pradesh, India

• Responsible for the development and maintenance of Payments Application using C++11 for various POS models.
• Worked on various complex projects that includes creating payments flow for EMI transactions, optimizing the Sqlite3 DB design for storing relevant data and creating UI screens for user interaction and displaying transaction data.
• Extensively worked on integrating vendor SDKs with our codebase to support new features.
• Implemented UpfrontQR+Card transaction flow that allows customers to pay using either QR which is displayed upfront on the UI or using card. This involved working with multithreading, mutex locks and other synchronization primitives to successfully capture and process transaction data as per transaction mode selected.

Jan 2020 – Mar 2020 · 2 mos

Aug 2017 – Dec 2019 · 2 yrs 4 mos

• 1) Error checking mechanism for better status reporting
• >Developed an XML based solution, which is now extensively used to report the correct testcase
• status and helps to identify crashes and bad logic for Catapult code.
• > Developed various user-friendly utilities integrated with Perforce, which automated the process of
• XML file creation.
• 2) Worked on optimizing the job scheduling process on SGE Grid, which improved the results efficiency by 50%.
• 3) Identified and fixed deadlock issues in XML file locking mechanism.
• 4) Worked on fixing the root cause of issues rather than working on workarounds, which significantly improved the system performance.

Jul 2016 – Jul 2017 · 1 yr

• Catapult Causal System - Culprit finding mechanism
• 1) Worked on developing the causal system for Catapult product from scratch, which efficiently tracks the regression culprit on daily basis.
• 2) Improved the existing code base by identifying and fixing various potential bugs in the system.
• 3) Worked on updating/querying data from MySQL database for QofR tracking.
• 4) Worked closely with other team members to plan, design and develop robust solutions in a timely manner.

Aug 2015 – Jun 2016 · 10 mos · Greater Hyderabad Area

• 1) Worked on testing of various software applications under Agile Scrum Methodology
• 2) Raised quality defects which helped to deliver applications strongly in-lined with business
• requirements/user stories
• 3) Tested applications on all browsers (Google Chrome, Microsoft Explorer, Mozilla, Safari) and OS
• (Android, Windows, IOS)

Jan 2015 – Jun 2015 · 5 mos · Noida, Uttar Pradesh, India

• Worked on testcase automation and testing for Design Entry HDL tool.
• Created PERL scripts to test various features of tool.