Anna Maria H.

Develop and maintain shared Java/Spring Boot backend services, API frameworks and platform components supporting high–volume payment products across multiple product teams. Design and evolve RESTful APIs and Oracle-backed data flows using Java, Spring Boot, SQL/PLSQL and MyBatis, owning delivery from technical design and implementation through testing, CI/CD and production defect investigation. Own and drive modernization of legacy payment systems through PL/SQL-to-Java migration, developing AI-assisted engineering tooling and redesigning shared JUnit test infrastructure supporting 4,000+ test files.

Software Engineer I – Backend & Platform Engineering - FIS GLOBAL - Nicosia, Cyprus

(2025-10)

• Develop and maintain shared Java/Spring Boot backend services, API frameworks and platform components supporting high–volume payment products across multiple product teams.
• Design and evolve RESTful APIs and Oracle-backed data flows using Java, Spring Boot, SQL/PLSQL and MyBatis, owning delivery from technical design and implementation through testing, CI/CD and production defect investigation.
• Own and drive modernization of legacy payment systems through PL/SQL-to-Java migration, developing AI-assisted engineering tooling and redesigning shared JUnit test infrastructure supporting 4,000+ test files.
• Build and improve cross-cutting platform capabilities spanning observability, structured application/security logging, validation and exception handling, integrating Splunk and contributing reusable solutions across backend services.

Founder & Independent Developer - INDEPENDENT SOFTWARE & WEB DEVELOPMENT - Nicosia, Cyprus

(2025-01)

• Founded, engineered and launched Roda, a production consumer resale marketplace scaling to 1,000+ users and 2,500+ listings, developing responsive React/JavaScript web experiences, REST API integrations and custom workflows spanning favourites, offer negotiation and order management.
• Design and develop custom websites and e-commerce applications for independent businesses owning end-to-end delivery across UI/UX, authentication, API integrations, Git/GitHub workflows, cloud deployment, hosting and maintenance.

Data Analytics & Machine Learning Intern - PROCTER & GAMBLE (P&G) - Reading, UK

(2025-07 - 2025-09)

• Performed data analysis using Seeq to evaluate operational metrics, collaborating with cross-functional teams to identify trends, optimize process control, and improve product quality through statistical methods and data-driven insights.
• Contributed to the development and testing of advanced defect detection systems, integrating a Linux-based IPC with a Matrox controller via Python and OPC UA, and productionizing the solution using Docker and Kubernetes.

Summer Research Student – Software Engineering - ROYAL NATIONAL ORTHOPAEDIC HOSPITAL – NHS TRUST - London, UK

(2024-07 - 2024-09)

• Developed a mobile and web application for clinical trial data collection through the IHE Studentship Scheme, translating clinician requirements into features compliant with healthcare data-collection requirements.

Software Engineer Intern - AMDOCS - Limassol, Cyprus

(2024-06 - 2024-07)

• Developed a React Native application integrating a third-party movie data API, with authentication, dynamic search and responsive UI/UX.

Summer Research Assistant - LONDON CENTRE FOR NANOTECHNOLOGY - London, UK

(2023-06 - 2023-08)

• Optimized CPW-resonator coupling for quantum spin dynamics research across UCL, King's and Imperial, performing electromagnetic simulations and data analysis using CST Microwave Studio and Python.

BEng - Electronic and Electrical Engineering with Computer Science - UNIVERSITY COLLEGE LONDON (2022-09 - 2025-06)