Application support engineer
Lorien Impellam London, United KingdomApplication support engineer
Application Support Engineer (eTrading Production Support)
Location: London
Working Pattern: 50% office-based (initially 100% onsite until fully up to speed)
Contract Length: 6 Months (inside IR35)
Overview
We are seeking an experienced Application Support Engineer to join a high-performing eTrading Production Support team within a global financial markets environment. The team provides critical support for Rates and Credit electronic trading platforms, supporting complex, business-critical applications across a global infrastructure spanning London, New York, Singapore, Tokyo, Montreal and Mumbai. The role supports more than 800 Windows and Linux servers and numerous electronic trading venues in a follow-the-sun operating model.
Key Responsibilities
- Manage day-to-day production support activities, ensuring maximum platform availability and stability.
- Monitor, troubleshoot and resolve incidents across business-critical eTrading platforms.
- Perform root cause analysis and drive permanent fixes for recurring issues.
- Support and maintain Windows and Linux-based application environments.
- Coordinate with development, infrastructure, market vendors and business users to resolve production issues efficiently.
- Manage change, release and deployment activities, ensuring adherence to operational standards.
- Improve platform resilience, reliability, performance and observability.
Required Skills & Experience
Production Support
- Extensive experience supporting business-critical production applications.
- Experience operating within a 2nd/3rd line application support or production support environment.
- Strong incident management and problem-solving capabilities.
- Proven ability to manage issues through to resolution while communicating effectively with stakeholders.
Operating Systems
- Strong Linux administration and troubleshooting experience.
- Strong Windows Server support experience.
- Experience analysing:
- CPU utilisation
- Memory consumption
- Storage performance
- Network and NIC metrics
- Operating system performance data
Key Skills:
- Networking - TCP/IP, DNS, VLANs, VPN/Stunnel, Connectivity
- Monitoring/Obs - Splunk, Geneos, Grafana, Dynatrace
- DevOps - Jenkins, Git, Bitbucket, Artifactory,
- Databases - Oracle, SQL Server
- Scripting - Bash, PowerShell, Python
- ITSM Tools - ServiceNow, Jira
- Markets - ION
- OS metrics - linux/windows
- App metrics - java/.NET
Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy.

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