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

Responsibilities
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You 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 systems


• Deliver new features while maintaining strict latency, throughput and resiliency constraints


• Analyse and optimise system performance (CPU, memory, threading, GC)


• Collaborate closely with traders, business analysts and support teams


• Participate in production support (L3\) and ensure system reliability


• Contribute to architecture evolution and scalability improvements


• Support onboarding of new products and business expansions


• Continuously improve development practices, tooling and automation


• Leverage AI\-assisted development tools to accelerate delivery and code quality

Experience \& technical skills

• Master’s degree in computer science or equivalent


• Strong experience in Core Java (10\+ years) in performance\-critical environments


• Deep expertise in:


• Concurrency, multi\-threading, synchronization, executors


• Memory management, collections, streams, generics


• Proven experience in low latency / high throughput systems


• Experience with performance tuning \& profiling tools (JMH, JProfiler, VisualVM, etc.)


• Solid knowledge of:


• Distributed systems, messaging (JMS), APIs (REST/gRPC)


• Unix/Linux environments and SQL


• Experience with testing frameworks (JUnit, Mockito)


• Knowledge of derivatives/trading systems is a strong plus


• Agile mindset and familiarity with modern CI/CD tooling (Git, Jenkins)


• Fluent English required


• Interest or experience in AI\-augmented development (Copilot, LLMs, automation tooling) is a strong advantage

• Strong analytical and problem\-solving mindset in complex, performance\-driven environments


• Ability to work autonomously and take ownership of critical components


• Excellent collaboration and communication skills in an international setup


• Pragmatic, results\-driven, and passionate about engineering excellence

• 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 generation

• Société 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.

We are an equal opportunities employer and we are proud to make diversity a strength for our company. Societe Generale is committed to recognizing and promoting all talents , regardless of their beliefs, age, disability, parental status, ethnic origin, nationality, gender identity, sexual orientation, membership of a political, religious, trade union or minority organisation, or any other characteristic that could be subject to discrimination.

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