Jul 2023 – Jul 2024 · 1 yr · Noida, Uttar Pradesh, India · Remote

• I operate a high-throughput switch service that serves as an intermediary connecting Paytm Payments Bank Ltd (PPBL) with the National Payments Corporation of India (NPCI) for all aspects of the Aadhaar Enabled Payment System (AEPS) domain.
• This switch service boasts an impressive 2000 Requests Per Minute (RPM), demonstrating its robust capability to handle a significant volume of transactions.
• This switch service is responsible for processing transactions worth 600 crore INR/day serving more than 1 million transactions/day.
• Technically speaking, the switch service is built using the Spring Boot framework, leveraging Java 17 as the programming language. It incorporates a state-machine architecture and employs a multithreading design, enhancing its performance and scalability.

Nov 2020 – Jun 2023 · 2 yrs 7 mos · Raebareli, Uttar Pradesh, India · Remote

• As a skilled developer, I successfully scaled microservices to meet a surge in demand, driving seamless application performance. Leveraging advanced techniques such as DB Archival, Indexing, and caching( Caffeine as L1 and Redis as L2 ), I optimized the system’s response times, enhancing user experience. Furthermore, my efforts to refactor and restructure the codebase resulted in a clean, efficient, and well-organized architecture, yielding a 30% reduction in average response times and a 50% decrease in server utilization, enabling the platform to handle increased traffic with ease.
• As the sole owner of multiple microservices, I spearheaded their scaling and optimization efforts, making them atomic and concurrent. Leveraging Kafka and modular functions, I made these services scalable, resulting in a remarkable 35% increase in overall system performance. Moreover, with expert guidance from our infrastructure team, I implemented cost-saving measures, resulting in a 20% reduction in operational expenses.
• As a security-minded developer, I implemented robust measures to secure sensitive data flowing in and out of microservices. Through the adoption of tokenisation and detokenisation techniques, I effectively protected against potential risks, safeguarding the privacy and integrity of sensitive information. These efforts resulted in a 25% reduction in the risk of data breaches, assuring users of their data’s safety and enhancing their trust in the platform.
• As a collaborative developer, I worked closely with procurement teams, delving deep into their business requirements to craft innovative solutions that outperformed expectations and fueled business growth. As a key member of a dynamic team of 4 to 6 developers, I played a critical role in breaking down complex features into manageable tasks, integrating them seamlessly, and fostering a culture of trust and teamwork, ultimately resulting in a remarkable 40% increase in project success rates.

Jun 2020 – Oct 2020 · 4 mos · Agra, Uttar Pradesh, India · Remote

• • Constructed a client-side portal from the ground up, utilizing JavaScript, Ajax, and Bootstrap. Incorporated Firebase as the database solution, and hosted the portal on GCloud. This resulted in the successful implementation and utilization of the portal by over 1000 vendors.

Aug 2019 – May 2020 · 9 mos · Mathura Area, India

• As a Technical Trainer Intern, my mission was to equip students with the skills to conquer complex algorithms and enhance their programming prowess. Through the art of data structure education, I challenged their problem-solving capabilities and encouraged the cultivation of a razor-sharp mindset

Jul 2018 – Jul 2018 · 0 mo · Delhi Area, India

• I worked on the live datasets of various organizations using Business Intelligence tools like NAVCUBE, Microsoft SQL Server Management Studio 17 and provided them with dashboards and reports that helped in deciding their sales, marketing, and product strategies.