Java Software Engineer

Java Software Engineer — Low Latency · Proprietary Trading · London. Miller Maxwell is retained by one of London's most respected proprietary trading firms to find a Java Software Engineer for their core engineering team. This is not a support role or a maintenance position — you will be building the front-office trading systems the firm's traders and quant researchers depend on, in real time, every day the market is open. The firm is well-capitalised, privately owned, and genuinely invests in its engineering talent. The codebase is modern, the problems are technically interesting, and the people around you will push you. The Java Software Engineer position will: You will work directly on the core trading engine — building new components, improving performance, and taking end-to-end ownership of high-visibility projects that are already in the pipeline. You will collaborate closely with front-office traders and quantitative research teams, which means your work has immediate, visible impact rather than disappearing into a backlog. The environment is fast-paced and technically uncompromising. If you want to work on software where performance genuinely matters and the stakes are real, this is it. Java Software Engineer duties: Designing and building components for the core trading engine, used live by front-office and quant research teamsTaking full ownership of projects across the development lifecycle — several high-visibility workstreams are starting immediatelyIdentifying and delivering performance improvements to core trading productsWorking in a low-latency, real-time environment where throughput and reliability are not negotiable Java Software Engineer requirements: 5+ years of commercial Java development experienceExperience with Java 17 - 21.A background in financial services — specifically developing trading software in a front-office, proprietary trading, or algorithmic environmentExperience working with real-time market data in low-latency or algo-driven systemsSolid Unix/Linux fundamentals What the client is offering: The package here is among the strongest in the market for this type of role: Highly competitive base salary with a superb bonus scheme - 40-50%.26 days holidayPrivate medical insuranceSubstantial daily food allowanceGym membershipComprehensive wellness packagePension schemeFour days in office required. This is a firm that looks after its engineers — compensation reflects that, and progression is real. If you are a Java engineer with a low-latency or trading systems background and want to work somewhere your skills are genuinely valued, Miller Maxwell would like to hear from you.