Harrington Starr
Application Support Engineer
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Application Support Analyst – Trading & Post-Trade Platforms £90,000 London (Hybrid)
We’re hiring a high-calibre Application Support Analyst to join a global team supporting business-critical trading and post-trade platforms. This is a hands-on role at the centre of a fast-moving financial environment, ensuring the stability, performance, and integrity of systems spanning trading, clearing, settlement, and risk.
You’ll work closely with front-office users, technology teams, and external vendors to resolve issues, improve platform reliability, and support the ongoing evolution of core systems.
The Role
- Own 2nd/3rd line support across trading and back-office platforms, ensuring high availability and rapid issue resolution
- Take full lifecycle ownership of incidents and outages, driving root cause analysis and permanent fixes
- Partner with development, infrastructure, and business teams to deliver seamless, end-to-end support
- Manage vendor relationships, exchange connectivity, upgrades, and technical client onboarding
- Support system enhancements, releases, and change initiatives across the platform landscape
- Deliver operational reporting including compliance, exchange reporting, and platform performance metrics
- Continuously improve support processes, tooling, and operational best practices
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What We’re Looking For
- Strong technical foundation across Linux/Unix and Windows environments, with solid database skills (SQL, PostgreSQL, MongoDB, Oracle)
- Scripting capability in Python or PowerShell for automation and operational tooling
- Good understanding of trading lifecycle processes (trading, clearing, settlement, post-trade flows)
- Experience supporting exchange connectivity, market data, and FIX protocols
- Familiarity with ITIL-based support environments, including incident, problem, and change management
- Confident communicator with the ability to work directly with traders, vendors, and senior stakeholders
- Calm, proactive, and solutions-focused under pressure
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Why Join
This is an opportunity to operate at the core of trading technology in a globally connected environment, with real ownership, exposure to front-office workflows, and the chance to drive meaningful improvements across critical systems.
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