09/24/2026 updated
NT
partially available
info: Available evenings and weekends
Software Engineering Leader & Cloud-Native Architect
Nicosia, USA
Only remote
MSc Business Intelligence & Data Analytics, BSc Computer ScienceJava (Programming Language)Application Programming Interfaces (APIs)Java ArchitecturesPython (Programming Language)PostgreSQLOracle SQL DeveloperSoftware ArchitectureSolution ArchitectureSpring BootBackendFront End Software DevelopmentApi Design
Java & Spring Boot Development
Extensive expertise in Java and Spring Boot for building enterprise-grade backend services, REST APIs and distributed systems across medical technology and financial services domains.
AWS Cloud Architecture
Deep knowledge of AWS cloud infrastructure including EKS, SQS, S3, RDS and related services, with hands-on experience architecting cloud-native platforms and driving AWS architecture readiness.
AI/ML Integration & Production AI
Practical experience integrating AI and machine learning workloads into production systems, including Python/TensorFlow pipelines, GPU inference with TensorRT, Bedrock-based RAG solutions and governed AI-assisted practices across the SDLC.
Kubernetes & Container Orchestration
Proficiency in Kubernetes for container orchestration and deployment, used across high-availability fraud detection and cloud-native medical platforms.
Cybersecurity & FDA/MDR Readiness
Experience driving FDA cybersecurity readiness through architecture documentation, STRIDE threat assessment, CycloneDX SBOMs and vulnerability management across platform components.
Real-Time Fraud Detection Systems
Nine years of experience developing real-time payment fraud detection systems, including ownership of internal REST API frameworks and end-to-end design of high-availability fraud engines.
Kafka & Distributed Messaging
Hands-on use of Apache Kafka for distributed messaging and event-driven architectures within large-scale financial services platforms.
React & React Native
Architecture and oversight of React and React Native frontend applications as part of cross-functional software delivery teams.
PL/SQL & Database Technologies
Solid background in PL/SQL (Oracle) and Microsoft SQL Server for backend data management, API support and critical client-release issue resolution.
IEC 62304 & Traceability Practices
Establishment of IEC 62304-aligned traceability and change-control practices across Jira, Confluence and GitHub in collaboration with executive and QA stakeholders.
C++ Backend Development
Experience designing, implementing and supporting APIs and backend services using C++ within R&D services environments.
Extensive expertise in Java and Spring Boot for building enterprise-grade backend services, REST APIs and distributed systems across medical technology and financial services domains.
AWS Cloud Architecture
Deep knowledge of AWS cloud infrastructure including EKS, SQS, S3, RDS and related services, with hands-on experience architecting cloud-native platforms and driving AWS architecture readiness.
AI/ML Integration & Production AI
Practical experience integrating AI and machine learning workloads into production systems, including Python/TensorFlow pipelines, GPU inference with TensorRT, Bedrock-based RAG solutions and governed AI-assisted practices across the SDLC.
Kubernetes & Container Orchestration
Proficiency in Kubernetes for container orchestration and deployment, used across high-availability fraud detection and cloud-native medical platforms.
Cybersecurity & FDA/MDR Readiness
Experience driving FDA cybersecurity readiness through architecture documentation, STRIDE threat assessment, CycloneDX SBOMs and vulnerability management across platform components.
Real-Time Fraud Detection Systems
Nine years of experience developing real-time payment fraud detection systems, including ownership of internal REST API frameworks and end-to-end design of high-availability fraud engines.
Kafka & Distributed Messaging
Hands-on use of Apache Kafka for distributed messaging and event-driven architectures within large-scale financial services platforms.
React & React Native
Architecture and oversight of React and React Native frontend applications as part of cross-functional software delivery teams.
PL/SQL & Database Technologies
Solid background in PL/SQL (Oracle) and Microsoft SQL Server for backend data management, API support and critical client-release issue resolution.
IEC 62304 & Traceability Practices
Establishment of IEC 62304-aligned traceability and change-control practices across Jira, Confluence and GitHub in collaboration with executive and QA stakeholders.
C++ Backend Development
Experience designing, implementing and supporting APIs and backend services using C++ within R&D services environments.
Experience
Professional experience10+ years
Freelancer since2024
Languages
EnglishFluentGreekNative speaker
Project history
Leads a cross-functional team of six software and AI/ML engineers plus external DevOps and network specialists, delivering the AI-HEART platform. Acts as software systems architect across React and React Native applications, Spring Boot services, Python/TensorFlow AI workloads, AWS EKS infrastructure and Keycloak identity services. Architected a cloud-native processing platform for ECG recordings of up to 15 days, combining durable SQS/S3 workflows with GPU inference using TensorRT and isolated CUDA contexts. Drives FDA cybersecurity readiness through STRIDE threat assessment, CycloneDX SBOMs and vulnerability management. Established IEC 62304-aligned traceability and change-control practices. Provides architecture and governance review for production AI solutions including a Bedrock-based RAG customer assistant.
Owned the internal REST API framework used across the fraud platform, leading core development, technical design and SME reviews. Designed and supported end-to-end solutions for Fraudguard, a real-time card fraud-detection engine operating in high-availability environments. Technologies: Java, Spring Boot, PL/SQL (Oracle), Kafka, Kubernetes, ArgoCD, AWS, S3, Prometheus, Grafana, Jenkins.
Led core development and technical reviews, modernized the fraud-engine codebase to JDK 17 and implemented a new product on the established platform. Served as R&D lead for the internal REST API framework. On-site delivery in Abu Dhabi, Jamaica and UK (data center).