Senior Java Performance Engineer

Java Software Engineer For our successful, internationally established fintech technology partner, we are looking for a Senior Java Developer to join their team. Experienced professionals, engineers, and developers work closely together in a collaborative, international environment to create high-quality technology solutions.We are looking for an engineer who enjoys going deeper into how systems behave — understanding performance bottlenecks, memory usage, CPU utilization, and resource management, and finding ways to make complex systems faster and more efficient.What you'll be working onDesign, develop, and optimize high-performance applicationsAnalyze and improve application performance, memory consumption, and CPU utilizationIdentify performance bottlenecks and implement effective optimizationsWork on resource and memory management challengesImprove the scalability, efficiency, and reliability of complex systemsInvestigate system behavior and performance issues, going beyond the application layer when neededCollaborate with experienced engineers on architecture and technical decisionsWhat we're looking for5–6+ years of professional software engineering experienceJava development expertiseSolid understanding of JVM internals and memory managementStrong knowledge of multithreading, concurrency, and parallel programmingExperience with performance profiling, tuning, and optimizationSolid understanding of CPU, memory, I/O, and resource utilizationExperience working with Linux environmentsAbility to investigate complex performance and resource-management problems in depthWhat they offerThe opportunity to work on complex, high-performance systems and tackle technically challenging Java and system engineering problemsWork that goes beyond traditional backend development into deeper system-level performance and resource optimizationThe chance to join a successful company with an international backgroundExposure to modern, market-leading technologiesAn outstanding compensation package, among the most competitive on the Hungarian marketAn inspiring, professional environment where you can learn from experienced colleagues while continuously developing your technical expertise