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Application Support Engineer (eTrading) - Contract - Inside IR35

London

£550 - £650 per day

Contract

Technology

Posted 5 August 2026

Ref BH-235468

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Dom Jennings

Hi, I'm Dom

I manage this role

Dom Jennings

Partner

Job description

Application Support Engineer (eTrading) - Contract - London - Inside IR35

A leading global investment bank is seeking an experienced Application Support Engineer (eTrading) to join its Front Office-aligned electronic trading support team.

This role sits within a global production support function responsible for supporting mission-critical Rates and Credit electronic trading systems. You'll work closely with traders, developers, infrastructure teams and external market venues to ensure the stability, performance and availability of a highly complex trading environment.

The team supports a large-scale global infrastructure estate across Europe, North America and Asia, covering pricing platforms, algorithmic trading systems, market connectivity and straight-through processing solutions.

Responsibilities
  • Day-to-day support of production trading environments
  • Monitoring platform health, capacity and performance
  • Incident management, troubleshooting and root cause analysis
  • Managing production changes, releases and upgrades
  • Supporting connectivity to exchanges, ECNs, brokers and market data providers
  • Working closely with development and infrastructure teams to improve resilience, availability and performance
  • Coordinating production activities with internal stakeholders and external vendors
  • Taking ownership of key applications and becoming the go-to technical expert for supported systems
  • Maintaining and improving operational documentation and support procedures
Required Experience
  • Strong Linux and Windows administration skills
  • Experience supporting front-office or electronic trading applications
  • Strong troubleshooting skills across CPU, memory, networking and system performance issues
  • Scripting experience using one or more of:
    • Python
    • Shell
    • PowerShell
    • SQL
  • Experience with Jenkins, Ansible or other CI/CD and automation tools
  • Good understanding of servers, networking and firewall infrastructure
  • Experience supporting Java, C++ or .NET applications
  • Excellent incident management and problem-solving skills
Desirable Skills
  • Experience supporting low-latency trading platforms
  • Knowledge of electronic trading workflows
  • Monitoring tools such as Geneos, Splunk or Zabbix
  • Multicast messaging experience
  • Experience with fixed income, rates or credit trading environments
  • Exposure to vendor trading platforms and exchange connectivity
About You
  • Self-motivated with a strong sense of ownership
  • Able to work effectively under pressure in a production environment
  • Strong analytical and troubleshooting capabilities
  • Excellent communication and stakeholder management skills
  • Team-oriented with a proactive approach to problem solving
  • Comfortable operating in a global support model and collaborating across regions
Why Apply?
  • Front-office facing role supporting business-critical trading platforms
  • Exposure to complex, low-latency electronic trading environments
  • Opportunity to work with global teams across multiple regions
  • High visibility position with close interaction across trading and technology functions
  • Long-term contract potential within a leading financial markets environment

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