Fokion Sotiropoulos
Vice President At XDP CIAM at Barclays
London, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolFokion Sotiropoulos is a senior software engineering leader with 11 years of experience building resilient, cloud-native microservices and payments platforms, now serving as Vice President at Barclays’ XDP CIAM. He has led payments engineering at Yapily, delivering pay-by-link and virtual account solutions on Spring WebFlux, PostgreSQL and GCP with Pub/Sub-driven integrations. A pragmatic technologist equally comfortable in Java, Go and JavaScript, he has a strong automation and infrastructure mindset—advocating Terraform, containerization and robust observability with Splunk/Datadog. His background includes migrating large monoliths to microservices at Tesco Bank and building real-time pricing and CD tooling, showing a blend of architecture, delivery and developer productivity focus. He holds a postgraduate degree in Computer Software Engineering from the University of York and multiple cloud and platform certifications, underscoring continuous learning. Outside core responsibilities he enjoys experimenting with polyglot stacks—evident from hands-on front-end and tooling work earlier in his career.
11 years of coding experience
12 years of employment as a software developer
Bachelor Computer Science, Bachelor Computer Science at Aristotle University of ThessalonikiPostgraduate Computer Software Engineering, Postgraduate Computer Software Engineering at University of York
English, French, Greek
Github Skills (84)
junit-test10
testing10
databases10
junit10
docker-container10
test-container10
integration-testing10
docker-compose10
hotel-booking10
database10
cli10
test-automation10
assertion10
jvm10
java10
Programming languages (8)
Github contributions (5)
fokion/venom
Apr 2023 - Nov 2023
🐍 Manage and run your integration tests with efficiency - Venom run executors (script, HTTP Request, web, imap, etc... ) and assertions
Contributions:1 PR, 106 pushes, 27 branches in 7 months
fokion/testcontainers-java
Oct 2023 - Jul 2025
Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.
Contributions:36 pushes, 4 branches in 1 year 9 months
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