Hi, I'm Antonis

I am currently working as a software engineer on Acumen Plus; a large-scale, cloud-native Treasury and Capital Markets platform that delivers a unified front-to-back-to-risk solution for financial institutions. My responsibilities focus primarily on backend development using Java, contributing to core components that support end-to-end treasury operations across a wide range of financial markets and instruments, including money markets, foreign exchange, securities, derivatives, and structured products. The platform is designed to provide real-time monitoring, straight-through processing, advanced risk management, and seamless integration with core banking, general ledger, and external market data systems.

In my current role, I am gaining deep exposure to complex financial instruments and treasury workflows, while building resilient, high-performance backend systems in an enterprise banking context. I am further strengthening my ability to work with large, modular platforms that demand scalability, real-time processing, and seamless integration with external systems.

I independently designed and developed a full-featured, production-ready software product from the ground up, targeting business customers that require structured management of client data, appointments, and workforce availability. The platform enables companies to manage their customers in an asynchronous classroom–teacher–student model, allowing for flexible scheduling and coordination between employees and end users. Core functionality includes - among others - comprehensive customer profiles, appointment scheduling, employee availability management, and an issues management panel that automatically identifies and surfaces operational conflicts, such as overlapping appointments or resource allocation inconsistencies. The system also provides analytical tools that offer per-customer insights, supporting data-driven decision making, and implements a tier-based subscription model through which companies can select service levels with differentiated features and privileges.

This project enabled me to gain end-to-end product ownership experience, from system architecture and security design to user experience and deployment-ready implementation. I also developed strong skills in translating business requirements into scalable technical solutions, including analytics, subscription models, and operational tooling. It also familiarized me with the modest web development technologies and best practices for building SaaS products.

I served in a programming position within a central operational unit of the Hellenic Army, contributing to the development of high-performance web applications used in demanding and mission-critical environments. My role involved full-stack development, working with Java and the Spring framework on the backend and React on the frontend, to deliver secure, efficient, and scalable military-grade information systems. The unit operated under ISO/IEC 27001:2013 standards, requiring strict compliance with information security management practices, access control, and data protection policies. Development activities were conducted within an Agile framework, emphasizing iterative delivery, cross-functional collaboration, and continuous improvement.

This experience provided me with a unique opportunity to apply my software engineering skills in a highly regulated and security-conscious context while I was completing my mandatory military service. I gained valuable insights into the challenges of developing software for defense applications, enhancing my ability to develop robust applications that meet stringent operational requirements. My work contributed to systems that support critical military functions, demonstrating my capability to deliver reliable software solutions in challenging environments.

I worked as a backend software developer within European Dynamics contributing to a project that formed part of the European Securities and Markets Authority (ESMA) ecosystem. My responsibilities focused on the design and implementation of backend services using Java and the Spring framework, supporting systems aligned with ESMA’s regulatory and supervisory mandate. The project operated within a highly regulated financial environment, requiring strict adherence to principles of reliability, security, and consistency in order to support the integrity, transparency, and orderly functioning of European financial markets. Through this role, I gained hands-on experience in developing scalable, maintainable backend components that underpin regulatory reporting, supervision, and data management processes. My work contributed to systems that support ESMA’s objectives of enhancing supervisory convergence, preventing regulatory arbitrage, and ensuring effective oversight of financial market participants across the European Union.

This role strengthened my expertise in enterprise backend development within highly regulated financial environments, emphasizing robustness, security, and compliance. I gained practical experience building scalable Java Spring services that support regulatory supervision and market integrity at a European level.

I was an active member of a university research group, joining the team prior to the completion of my Bachelor’s degree after being selected by a faculty member for early participation. I contributed throughout the full lifecycle of the RESPECT project, a 30-month research and development initiative, from its initial conception to its final delivery. The project focused on the design and implementation of a comprehensive, end-to-end platform for the optimal collection, management, modeling, and analysis of large-scale, heterogeneous data related to cultural heritage. RESPECT aimed to transform raw, fragmented datasets into structured, semantically rich, and analytically valuable knowledge by supporting data operations across the entire data lifecycle. The platform adopted a holistic and interdisciplinary approach, integrating methodologies and tools from computer science, engineering, data analytics, and information technology. By unifying data originating from diverse scientific domains, the project addressed existing fragmentation in cultural heritage practices and enabled a coherent, interdisciplinary representation of monuments and heritage assets. My involvement included sustained collaboration within a multidisciplinary research team, contributing to the development of a knowledge-driven platform that supports evidence-based decision making and promotes the long-term sustainability of restoration and conservation actions.

Through this experience, I gained a strong foundation in interdisciplinary research and large-scale system design, learning how to transform complex, heterogeneous data into structured, actionable knowledge. I also developed the ability to collaborate effectively within long-running research projects, contributing consistently from initial concept through final delivery.