Application Engineer

This is a highly technical, front‑office-aligned position supporting complex, low‑latency electronic trading environments on a global scale.

• Global production support team covering London, New York, Montreal, Singapore, and Mumbai
• Responsible for over 800 Windows and Linux servers supporting Rates & Credit trading platforms
• Manages connectivity to major electronic trading venues including CME, Eurex, ICE, MTS, Brokertec, Bloomberg, Tradeweb, MarketAxess, and Euronext
• Primary responsibility for global support of the ION platform, in‑house pricing systems, algorithmic trading components, and STP flows
• Production systems located mainly in London, New York, Singapore, and Tokyo
• Operates a follow‑the‑sun support model

You will take ownership of a set of applications and technologies within the eTrading environment, becoming a subject‑matter expert while ensuring platform stability, performance, and ongoing improvement.

The role involves a shift‑based rota covering 7:00am to 6:00pm, with occasional - 50% of your working week onsite.

• Day‑to‑day production management including monitoring, capacity management, incident resolution, and change management
• Rapid and efficient resolution of production issues, minimising impact to trading desks and internal users
• Close collaboration with developers, business analysts, architects, infrastructure teams, and external vendors
• Support implementation and rollout of upgrades and enhancements to existing services
• Design, set up, and improve platforms with a focus on resilience, high availability, performance, and low latency
• Coordinate and manage changes with trading venues, ECNs, and third‑party providers
• Plan, schedule, implement, and document release and change activities
• Maintain high‑quality documentation and share knowledge across the global team

• Strong experience supporting production systems in electronic trading environments
• Excellent Linux and Windows operating system expertise
• Broad IT background covering servers, networks, and firewalls
• Ability to analyse CPU, memory, network/NIC, and multicast performance
• Scripting experience in one or more of: PowerShell, Shell, Python, SQL
• CI/CD and automation experience with Jenkins, Ansible, and Artifactory
• Application support experience with Java, C++ and/or .NET
• Proven ability to deliver medium‑scale technical projects

• Operating system performance tuning
• Experience with ION trading technology
• Multicast messaging expertise
• Monitoring tools such as Geneos or Zabbix
• Log and data analysis using Splunk

McGregor Boyall is an equal opportunity employer and do not discriminate on any grounds.