Platform Engineer – Low-Latency Trading Infrastructure

7 days ago

London, Greater London, United Kingdom JPMorganChase Full time £60,000 - £120,000 per year
Description

Join our team as a Platform Engineer, maintaining and evolving our global low-latency trading infrastructure in London, focusing on reliability, observability, and performance.

We are hiring a Platform Engineer to help maintain and evolve our global low-latency trading infrastructure. This is a London-based engineering role, focused on the reliability, observability, and performance of a mature FX and macro trading platform. You will work with a well-established Java codebase on Linux, supporting real-time systems used by a large global client base. This is not a Greenfield or quant role — we're looking for someone passionate about robust systems, diagnostics, and platform engineering, not someone whose primary focus is trading strategies. Our platform is recognized as one of the largest FX trading systems globally.

What You'll Do

  • Enhance and support low-latency Java services running on Red Hat Linux.
  • Operate and extend our UDP multicast infrastructure, primarily Informatica LBM.
  • Support and evolve FIX protocol connectivity for client and venue interfaces.
  • Lead efforts around monitoring, alerting, and production stability.
  • Work with tools including Geneos, Splunk, and Grafana to ensure observability.
  • Collaborate with global engineering and support teams to drive operational excellence.
  • Contribute to technical decision-making around reliability, performance, and incident response.

What We're Looking For

  • Proven experience in Java (17/21+) development with a strong understanding of performance tuning and concurrency.
  • Deep familiarity with Linux systems engineering, particularly Red Hat.
  • Hands-on experience with multicast messaging (ideally LBM, or equivalents like Aeron or Tibco).
  • Strong platform mindset: you think about uptime, metrics, logs, alerts, capacity, and supportability.
  • Familiarity with monitoring and observability tools such as Geneos, Splunk, Grafana.
  • Comfortable working on production-critical, high-uptime systems in a regulated environment.
  • Scripting experience with languages such as Python or Perl.

Nice to Have

  • Knowledge of FIX protocol and its role in electronic trading.
  • Experience in a low-latency trading or market data environment.
  • Scripting (Bash, Python) or config automation (Ansible, etc.).
  • Familiarity with messaging patterns, network tuning, or CPU/memory profiling.
  • Experience with in-memory databases like kdb for analytical work and setting up dashboards around low latency flow.

What We Offer

  • A central role in building a mission-critical platform with global impact.
  • Exposure to real-time systems, multicast networks, and production observability at scale.
  • A collaborative, global engineering environment with real ownership.
  • Competitive compensation and benefits package.

  • Low Latency Network Engineer

    3 days ago

    London, Greater London, United Kingdom Millennium Full time £70,000 - £120,000 per year

    We are seeking an experienced Network Engineer to join our latency-critical trading infrastructure team. As part of a global follow-the-sun team of network engineers across North America, EMEA, and APAC, the Network Engineer will focus on the architecture, design, development, deployment, and support of Millennium's high-performance global networks. These...

  • Senior Java EFX Low Latency Platform Engineer

    7 days ago

    London, Greater London, United Kingdom McGregor Boyall Full time £80,000 - £120,000 per year

    Senior Java EFX Platform DeveloperLocation:Fully Remote (UK-based)Contract:12 Months (likely extension)Industry:Investment Banking / FX E-TradingThe OpportunityWe're partnering with a leading investment bank on amajor greenfield build- a brand-new, in-houseFX E-Trading platform. This multi-year programme is at an early stage, offering the chance to help...

  • Low Latency Java Developer

    1 week ago

    London, Greater London, United Kingdom Greenfix Property Care Full time £60,000 - £120,000 per year

    Low Latency Java Developer - FX options - Inside IR35Central London - Hybrid - 3 days on site, 2 days remote12 monthsBriefOur client is seeking a Low Latency Java Developer with hands-on experience in FIX protocol integration to join their FX Options technology team.You will play a hands-on role in modernising and optimising the trading platform, delivering...

  • Low Latency Java Developer

    7 days ago

    London, Greater London, United Kingdom Greenfix Property Care Full time £60,000 - £100,000 per year

    Central London - Hybrid - 3 days on site, 2 days remote12 monthsBriefOur client is seeking aLow Latency Java Developerwith hands-on experience inFIX protocol integrationto join their FX Options technology team.You will play ahands-on role in modernising and optimising the trading platform, delivering ultra-low latency solutions for front-office trading and...

  • Senior Low Latency Java Engineer

    5 days ago

    London, Greater London, United Kingdom Citi Full time £80,000 - £120,000 per year

    Senior Low Latency Java Engineer (SVP)This is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology Team. The overall objective of this role is to lead applications systems analysis and programming activities.The role is to provide senior, low-latency systems...

  • Senior Low Latency Java Engineer

    7 days ago

    London, Greater London, United Kingdom McGregor Boyall Full time £80,000 - £120,000 per year

    We are hiring an experienced Senior Software Engineer with deep expertise inultra-low-latency, high-throughput Java systems. This is a role for someone who builds systems that push performance boundaries, not just enterprise-grade services.You'll join a specialist engineering group designingfault-tolerant, sub-40µs latencypipelines, shaping architecture...

  • Infrastructure Lead

    2 weeks ago

    London, Greater London, United Kingdom Durlston Partners Full time £1,200,000 - £2,000,000 per year

    DevOps, Infrastructure, SRE£100K – £150K base plus bonus (10% - 50%)LondonInfrastructure Lead (Hands On) – Global Securities Firm (Market Making) – London – Greenfield AWS Trading InfraAre you ready to lead the infrastructure vision of a global trading firm?We're looking for an accomplished Infrastructure Lead/Head of Infrastructure to drive the...

  • HFT Engineering Lead

    1 week ago

    London, Greater London, United Kingdom Teza Technologies Full time £100,000 - £150,000 per year

    We are looking for a HFT Engineering Lead to lead the development of our HFT (high-frequency trading) algorithms across the full spectrum of exchange-traded financial products. Your work will impact the profitability of strategies across futures and equities and will constitute our competitive edge in the markets.LocationChicago, IL or London, UK (Hybrid,...

  • Trading Infrastructure Software Engineer

    7 days ago

    London, Greater London, United Kingdom PDT Partners Full time £195,000 - £225,000 per year

    As a Trading Infrastructure engineer, you'll work on a small global team of highly experienced systems and applications engineers focused on the creation, management and support of real-time trading systems. A role on this team offers significant exposure to sophisticated methods of trading, from the handling and distribution of market data to order...

  • Campus Tech Ops Engineer

    7 days ago

    London, Greater London, United Kingdom Jump Trading Full time £60,000 - £120,000 per year

    Jump Trading Group is committed to world class research. We empower exceptional talents in Mathematics, Physics, and Computer Science to seek scientific boundaries, push through them, and apply cutting edge research to global financial markets. Our culture is unique. Constant innovation requires fearlessness, creativity, intellectual honesty, and a...