Senior Java Engineer - Low Latency Trading Systems (m/f/d)

ResponsibilitiesYou will contribute to a high-throughput, low-latency trading platform, with direct impact on business performance:Design and develop high-performance Java components for real-time trading systemsDeliver new features while maintaining strict latency, throughput and resiliency constraintsAnalyse and optimise system performance (CPU, memory, threading, GC)Collaborate closely with traders, business analysts and support teamsParticipate in production support (L3) and ensure system reliabilityContribute to architecture evolution and scalability improvementsSupport onboarding of new products and business expansionsContinuously improve development practices, tooling and automation Leverage AI-assisted development tools to accelerate delivery and code qualityProfile requiredExperience & technical skillsMaster’s degree in computer science or equivalentStrong experience in Core Java (10+ years) in performance-critical environmentsDeep expertise in:Concurrency, multi-threading, synchronization, executorsMemory management, collections, streams, genericsProven experience in low latency / high throughput systemsExperience with performance tuning & profiling tools (JMH, JProfiler, VisualVM, etc.)Solid knowledge of:Distributed systems, messaging (JMS), APIs (REST/gRPC)Unix/Linux environments and SQLExperience with testing frameworks (JUnit, Mockito)Knowledge of derivatives/trading systems is a strong plusAgile mindset and familiarity with modern CI/CD tooling (Git, Jenkins)Fluent English requiredInterest or experience in AI-augmented development (Copilot, LLMs, automation tooling) is a strong advantagePersonal abilities & competenciesStrong analytical and problem-solving mindset in complex, performance-driven environmentsAbility to work autonomously and take ownership of critical componentsExcellent collaboration and communication skills in an international setupPragmatic, results-driven, and passionate about engineering excellenceWhy join us Work on business-critical systems where milliseconds matter Benefit from an AI-enabled engineering environment Solve complex technical challenges at scale Exposure to global trading activities and stakeholders Direct impact on trading performance and revenue generationBusiness insightSociété Générale’s Global Business Technology & Operations (GBTO) delivers cutting-edge IT platforms supporting fast-growing trading businesses across global markets.Within GBTO, the Market Making Technology team builds and operates high-performance, in-house trading systems powering pricing, hedging, risk and execution across European exchanges and global locations (Frankfurt, Paris, London, HK, New York).Our platform handles hundreds of thousands of trades per day in a highly demanding real-time environment.This role sits at the core of this ecosystem.You will join a team of highly skilled engineers working directly with trading desks to continuously improve performance, scale and capabilities of a mission-critical low latency platform.