Senior Java Engineer

DX Compliance Solutions is an Irish RegTech company that provides innovative
compliance software to help financial institutions meet regulatory requirements.
-Architected a microservices-based platform using Spring Boot, Kubernetes, and
Istio, boosting uptime to 99.99% and accelerating deployments by 50%
-Engineered a real-time data pipeline with Apache Kafka and Spark Streaming,
processing 1 billion events daily and increasing user engagement by 25%
-Optimized database performance, slashing query latency by 50% and boosting
throughput by 30%
-Mentored 5 junior developers, conducted 100֡ code reviews, and reduced technical
debt by 80%
-Collaborated cross-functionally to deliver 20 high-quality features in an Agile
environment

Outfittery is a German online personal shopping service that helps customers find the
right clothes
-Built and maintained an e-commerce platform using Java, Spring, Hibernate, and
MySQL, processing 1 million orders daily with 99.9% accuracy
-Implemented Spring Security to prevent 1000֡ attacks and ensure PCI DSS
compliance
-Automated deployment and testing using Jenkins, Docker, and Kubernetes, reducing
manual effort by 90% and improving reliability by 99.99%
-Participated in performance testing, resolving 50 bottlenecks and improving
response times by 75%
-Provided on-call support, resolving 500֡ incidents and maintaining 99.99% uptime

Lukardi is a Polish IT services company that provides SAP security, document
digitalization, and IT project services to clients in the Business Services sector.
-Developed an ERP system using Java, Struts, and Oracle Database, streamlining 20
business processes and boosting productivity by 30%
-Designed a modular architecture, enabling 10 customizations and 5 extensions to
adapt to changing requirements
-Created an exception handling framework, reducing debugging time by 60% and
improving stability by 90%
-Collaborated with 15 business analysts and end-users, gathering 100֡ requirements
and designing 20 user-friendly interfaces
-Participated in 50 Agile ceremonies, improving team communication by 80% and
reducing process waste by 75%