Low Latency Engineer

We’re looking for a high-calibre Solution Engineer with a passion for performance and capital markets technology to deliver complex, front-office trading systems for leading global investment banks, asset managers, fintechs and exchanges.

This role sits at the intersection of engineering excellence, client engagement, and strategic delivery — working hands‑on in Java to design and build highly performant, resilient, low-latency trading platforms across OMS, EMS and exchange connectivity environments.

What you’ll be doing

• Designing and delivering high-performance, low-latency trading solutions in capital markets environments
• Contributing directly to the codebase on the most technically challenging aspects of client deliveries
• Architecting performant, resilient distributed systems informed by deep domain knowledge
• Building solutions across OMS, EMS, Smart Order Routing, Matching Engines, FIX gateways and Risk platforms
• Working with event‑driven architectures, replicated state machines and distributed consensus systems
• Applying best practices in separation of concerns, clean architecture and test‑driven / behaviour‑driven development
• Advocating technical decisions to clients, stakeholders and internal teams
• Ensuring adherence to Agile delivery processes and mature SDLC standards
• Coaching and mentoring engineers, driving technical quality across teams
• Escalating and articulating technical risks clearly to leadership and clients

What we’re looking for

• Strong Java engineering background with a focus on highly performant, low‑latency systems
• Significant experience in capital markets technology environments
• Experience building solutions within:
• Order Management Systems (OMS)
• Execution Management Systems (EMS)
• Experience using Aeron in high‑performance capital markets or digital assets environments
• Deep understanding of distributed systems, event‑driven architecture and consensus models
• Strong knowledge of data structures (maps, sets, queues, etc.)
• Experience operating within Agile frameworks and structured SDLC environments
• Excellent communication skills and ability to build trusted client relationships
• Comfortable leading technical discussions and advocating architecture decisions

Why this role

• Direct impact on mission‑critical front‑office trading platforms
• Exposure to elite capital markets institutions and high‑performance engineering environments
• Highly technical, architecture‑driven delivery work
• Opportunity to mentor and influence engineering standards
• Collaborative, high‑standard engineering culture
• Strong work/life balance with flexible hybrid working

Contact Ciara Clarke at Harrington Starr for a confidential discussion on this role.

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