- Guided the translation of user needs into actionable deliverables, bringing product design from concept to implementation - Built a robust note-taking application leveraging Next.js and PostgreSQL, delivering an intuitive and responsive user experience - Deployed and managed scalable infrastructure across Vercel, Auth0, and Supabase, ensuring robust performance and secure authentication for user data - Implemented a subscription payment system from scratch, enabling recurring revenue streams

- Developed a React-based merchant portal, actively used by over 500,000 Klarna merchants worldwide - Restructured the user authorisation model for the merchant portal using Node.js and PostgreSQL to align with evolving business requirements - Maintained a CI/CD platform using Jenkins and managed AWS infrastructure for the merchant domain, supporting over 10 cross-functional teams - Monitored and optimised the performance of the Klarna merchant portal system with Datadog - Implemented security features and led threat modelling sessions

- Developed Kubernetes service discovery utility app via the Java Kubernetes API, deployed using Docker, Kubernetes, Jenkins CI, and Google Cloud - Developed an internal web-tool for blue-green deployment - Contributed to the integration of single sign-on for the Ingenious SaaS Platform, utilising Keycloak and OAuth 2.0 for user authentication

- Conducted simulations of quantum computing based on the physical model with C++ and parallel computing techniques - Designed algorithms which improved the performance of quantum computing when solving optimisation tasks - Published a journal article on the topic of quantum annealing

- Developed a simulation program(C++) with revised mathematical methods - Clarified the relation between quantum annealing and machine learning - Investigated the properties of a quantum annealing algorithm compared to a classical simulated annealing algorithm - Reduced the runtime of the simulation with parallel library, OpenMP