Jul 2024 – May 2025 · 10 mos

Sep 2022 – Jun 2024 · 1 yr 9 mos

• OAuth -
• Engineered a highly available, scalable, and resilient system capable of managing an average throughput of ~50k TPS.
• Successfully optimized Redis Cache memory utilization, reducing it from 100% to 40%.
• Orchestrated the migration of microservices responsible for user and client authorization from Alipay Cloud to AWS.
• Deployed Sharding Sphere for horizontal sharding of MySQL data impacting 100 million users.
• Architected and implemented REST APIs for seamless data migration and integration with various system components.
• Implemented integration with Spring Cloud Consul client to dynamically modify configured values in the active service pods.
• Implemented various strategies, including DRM-based rollout, HPA Keda Configs for scaling the pods, and Micrometer metrics, to maintain the system.
• integrity, address new features, and minimize 5xx errors.
• Deployed releases to production using Jenkins jobs and monitored traffic and performance utilizing Grafana, Kibana, and Loki.
• Assumed weekly on-call support responsibilities, providing mentorship to junior team members through assigned tickets and peer review of pull requests
• (PRs).
• Tech Stack: Java, Spring Boot, Hibernate JPA, Redis, Kafka, MySQL, ShardingSphere, AWS, Gradle, Kibana, Grafana, Jenkins, etc.
• CST-
• Designed & Developed a new microservice featuring a generic template to accommodate various workflows.
• Utilized Groovy within a Gradle Java SpringBoot Project to streamline response transformation.
• Tech Stack: Java, Groovy, Spring Boot, Hibernate JPA, MySQL, AWS, Gradle, Kibana, Grafana, Jenkins, etc.

Apr 2021 – Sep 2022 · 1 yr 5 mos · Noida, Uttar Pradesh, India

• DACS (Digital Access Control Server) & Cloudcard (SaaS):
• In the world of authentication solutions, DACS stands as a mature product with a remarkable 14-year history. Its versatility shines through as some clients opt for DACS as an on-premise solution, while others prefer the convenience of utilising it as a Software-as-a-Service (SaaS) offering.
• On the other hand, Cloudcard emerges as a cutting-edge, mobile-based Strong Customer Authentication (SCA) solution. Designed to seamlessly integrate with clients' iOS and Android applications through a Software Development Kit (SDK). With its PIN and biometric plugins, including face and fingerprint recognition, Cloudcard empowers users with a secure and user-friendly authentication mechanism.
• Enriched my expertise by traveling to IDEMIA's headquarters in France, actively participating in the project's transition phase. This involved acquiring in-depth knowledge of multiple project modules through effective knowledge transfer sessions.
• Played a pivotal role in enhancing the security and convenience of authentication workflows for end-users. This was achieved by designing and developing crucial features within various microservices such as Fraud Manager, Cloud Card, Core DACS, and more.
• Successfully executed the migration of Docker images for both microservices and monolithic services, smoothly transitioning from OpenJDK to OracleJDK. This migration ensured optimal performance and compatibility across the entire ecosystem.
• Leveraged the capabilities of Jenkins and OpenStack's VMs to orchestrate seamless build, deployment, and testing workflows. These integrated use cases played a vital role in ensuring the security and stability of the release cycles.
• Demonstrated my strong attention to detail and commitment to quality by diligently reviewing and providing feedback on the pull requests (PR) of team members. This contributed to maintaining a high standard of code quality and adherence to best practices.

Dec 2018 – Mar 2021 · 2 yrs 3 mos · Noida, Uttar Pradesh, India

• DOB (Digital Onboarding) - A B2B User Onboarding Solution
• During my tenure working on the DOB (Digital Onboarding) project, I spearheaded the development of key components and integrations, leveraging various technologies to create a seamless user onboarding experience. Here are some highlights of my contributions:
• Digilocker:
• Innovated and implemented a Spring Boot-based RESTful Web Service named "DigilockerDocs." This service played a vital role in integrating Digilocker, a secure cloud-based platform for storing and sharing certificates and documents. I accomplished this integration using Rest Template and OAuth 2.0 protocol, marking a significant achievement as it was the first time this integration had been achieved in an Indian B2B SDK solution. I successfully fetched, parsed, and stored multiple documents of end-users into the database, enhancing the overall functionality and convenience of the onboarding process.
• Google-Vision:
• Developed a new Spring Boot and Hibernate JPA-based web service named "Google-Vision-Parser." This service facilitated the integration of Google Vision client, enabling Optical Character Recognition (OCR) of various versions of multiple national documents used by end-users. Through this integration, I efficiently extracted relevant data from the documents, including portraits and signatures, in JSON and Base64 formats. Additionally, I completed a proof-of-concept (POC) utilizing Regula Rest APIs to explore alternative OCR options.
• Integration with Azure Rest APIs:
• Enabled seamless integration with Azure's Rest APIs, specifically for extracting portraits from videos for authentication purposes. This integration was achieved through an asynchronous process utilizing a Callback API (webhook). By integrating Azure's Rest APIs, I enhanced the authentication capabilities of the DOB solution, enabling a more comprehensive and secure user onboarding process.

Jan 2017 – Oct 2018 · 1 yr 9 mos

• Engaged in onsite client interactions and played a crucial role in a financial domain project, effectively handling requirements and contributing to a smooth transition. I had the opportunity to work directly with the client, which included travelling to their office in London, UK. This face-to-face collaboration proved instrumental in understanding their needs and delivering solutions tailored to their specific requirements.
• Successfully managed the implementation of Open Text Media Management tool for L'Oreal, a global leader in beauty products. This involved overseeing various accounts, creating and maintaining taxonomies, and managing the user base consisting of thousands of business and test users. I navigated seamlessly across multiple environments, including Local, DEV, QA, UAT, PS, Perf, Demo, and Production, ensuring smooth operations and high-performance standards.
• Leveraged the power of Dynatrace to monitor and optimize application performance across all environments. By utilising Dynatrace, I proactively identified potential bottlenecks and areas for optimisation, ensuring that the application consistently delivered exceptional performance and met stringent quality standards.
• Demonstrated my commitment to quality and reliability by resolving numerous bugs and improving code quality. I utilised Sonarlint, a powerful code analysis tool, to identify and rectify potential issues, ensuring that the codebase adhered to best practices and industry standards. Additionally, I enhanced code coverage by diligently writing JUnit tests, bolstering the stability and robustness of the application.

Jun 2016 – Dec 2016 · 6 mos

• Training:
• ∙ Embarked on a comprehensive and intensive 3-month training program where I underwent rigorous assessments and acquired proficiency in both back-end and front-end technologies.
• SapeStore:
• ∙ Developed an online Retail Management System for SapeStore that provides customers easy and convenient access to books.
• ∙ Responsible for developing the backend of Order Processing and Shopping Cart modules.
• ∙ Enhanced Code quality with sonar fixes and junits.
• ∙ Technologies: Java, Spring MVC, Hibernate, MySQL, JSP, JavaScript, HTML, CSS