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Backend Software Engineer with experience building large-scale banking and payment processing systems at FIS (formerly TSYS). I mainly work with Java, Spring Boot, SQL, Kafka, and cloud-based architectures, building scalable and reliable solutions within agile cross-functional teams. I enjoy working closely with both technical teams and clients to turn business requirements into practical, high-impact products.…Backend Software Engineer with experience building large-scale banking and payment processing systems at FIS (formerly TSYS). I mainly work with Java, Spring Boot, SQL, Kafka, and cloud-based architectures, building scalable and reliable solutions within agile cross-functional teams. I enjoy working closely with both technical teams and clients to turn business requirements into practical, high-impact products.

Panayiotis Kyriacou

Web Developer, Full Stack Developer, Programmer, +2

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Backend Software Engineer with experience building large-scale banking and payment processing systems at FIS (formerly TSYS). I mainly work with Java, Spring Boot, SQL, Kafka, and cloud-based architectures, building scalable and reliable solutions within agile cross-functional teams. I enjoy working closely with both technical teams and clients to turn business requirements into practical, high-impact products.…Backend Software Engineer with experience building large-scale banking and payment processing systems at FIS (formerly TSYS). I mainly work with Java, Spring Boot, SQL, Kafka, and cloud-based architectures, building scalable and reliable solutions within agile cross-functional teams. I enjoy working closely with both technical teams and clients to turn business requirements into practical, high-impact products.

Available to hire

Backend Software Engineer with experience building large-scale banking and payment processing systems at FIS (formerly TSYS). I mainly work with Java, Spring Boot, SQL, Kafka, and cloud-based architectures, building scalable and reliable solutions within agile cross-functional teams. I enjoy working closely with both technical teams and clients to turn business requirements into practical, high-impact products.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Work Experience

Software Engineer at FIS Global (Formerly TSYS)

September 1, 2023 - Present

Developed and maintained RESTful APIs using Java and the Spring Framework, enhanced VB.NET and ASP.NET web applications to improve user experience and functionality, and produced and consumed messages via Kafka to enable real-time data streaming. Integrated REST APIs with Oracle databases using MyBatis and developed optimized PL/SQL queries to efficiently process millions of records with reliable transaction handling. Managed end-to-end project delivery including design, development, testing, and client support. Implemented coding practices aligned with industry standards to ensure security, high quality, and maintainable software. Collaborated with the delivery team on the largest client implementation, contributing to a cloud-based microservices architecture and cross-team collaboration to meet project goals.

Assistant Software Developer at Deloitte

July 1, 2022 - August 1, 2022

Developed software solutions following Agile methodology, including Scrum ceremonies and Sprint Planning. Created an API using .NET and the ASP.NET framework. Designed and developed a form builder using HTML, CSS, and JavaScript. Worked with SQL Server Management Studio for database management and queries.

Project Support Scientist at KIOS Research and Innovation Center of Excellence

July 1, 2021 - August 1, 2021

Contributed to the ENERMAN project focusing on the development of a decision-support system; engaged in semantic modelling of physical and control processes to enhance system functionality; conducted configuration analysis and KPI-based ranking to improve energy efficiency; utilized Neo4j, a graph database management system, to manage and query complex data relationships.