Senior Java Software Engineer within the Gatekeepers team from Account verticalProjects: KYC PrefillKey achievements:- Contributed to the integration of our Know Your Customer (KYC) form with Prove, enabling automatic prefilling of the KYC form using mobile ownership verification through SMS links.- Collaborated with the product owner to analyze and define the requirements for sending production data from Prove to our data warehouse. This project was pivotal in enhancing our data analysis capabilities and enabling more informed decision-making.- Designed and implemented a highly functional and configurable rate limiter for our Spring Boot service, addressing the need to mitigate customer spam and reduce SMS-related costs effectively.- Played a key role in the interview and selection process for our internship program. I actively mentored the intern, guiding them through an internal project, providing regular code reviews, and sharing knowledge to foster their growth and confidence in software development.- Developed a proof of concept demonstrating how developers can simulate replication lag between primary and replica Redis nodes locally usind Docker containers. This allows for more accurate testing of code synchronization and enhances overall code reliability.- Conceived and outlined an alternative solution for verifying customer phone number ownership using one-time passwords (OTPs), eliminating the dependency on third-party vendors.

Java Software Engineer within the Gatekeepers team from Account verticalProjects: KYC Prefill, Authgateway, VerificationKey achievements:- Spearheaded the development and maintenance of a comprehensive Java service responsible for managing user sessions, as well as the registration and authentication flow, ensuring a seamless user experience.- Worked on a crucial initiative to migrate the registration flow from a legacy PHP service to a modern Java service. This complex project involved extensive refactoring and collaboration across multiple teams.- Was the engineer responsible for optimizing the authentication service to withstand the surge in customer requests during the first weekend of the NFL season. My efforts, in close collaboration with the department's principal and performance testing engineers, ensured flawless service during this critical period.- Prepared the authentication service to handle increased traffic during Super Bowl LVII, including the peak times coinciding with FanDuel's Kick Of Destiny commercial. This achievement underscored our team's capability to deliver under pressure and guarantee uninterrupted user access during one of the year's biggest sporting events.- Committed to the growth and development of my team by mentoring colleagues through code reviews and targeted meetings, fostering a culture of excellence and continuous improvement within our department.- Attained the AWS Certified Cloud Practitioner certification, demonstrating a broad understanding of cloud computing principles and AWS infrastructure.- Helped with the technical migration of Redis from version 3 to version 7 in response to its end-of-life status in July 2023, ensuring our caching mechanisms remained efficient and up-to-date.- Conducted thorough investigations into user session revocation and rate limit mechanisms, employing distributed caching techniques. Presented findings and strategies to the team, enhancing our understanding of these concepts

Java Software Engineer within the DCDS teamProjects: TrainingApp, Device Services, Subscriptions ServicesKey achievements:- Played a pivotal role in interfacing with HR and management teams to identify essential features for an internal application, ensuring it met organizational needs and facilitated streamlined operations.- Collaborated with a team of developers from Romania and the United States to develop backend services critical for managing the association between customers, their devices, and subscriptions, enhancing user experience and service efficiency.- Significantly enhanced the quality and reliability of software services by improving automated testing frameworks, including both unit and integration tests. This ensured high code correctness and facilitated easier refactoring.- Refactored legacy and complex code within the subscription management system, boosting system performance and maintainability.- Advanced the resiliency of Spring Boot services by integrating Resilience4j features such as circuit breakers and retries, thereby improving system robustness and reducing downtime.- Achieved the Java SE 8 Oracle Certified Associate certification, demonstrating a high level of proficiency in Java core.