Application Support Engineer

Cloudspirit; Greater London; On-site; GBP 60,000 - 80,000; Full time

Job summary

Cloudspirit is seeking an experienced Application Support Engineer to join a high-performing global team. You will support the eTrading environment for a leading investment banking client, ensuring the stability and performance of critical trading platforms.

This role involves overseeing production support activities, managing incident resolutions, and enhancing electronic trading systems in a complex, low-latency environment. Applicants should have strong expertise in application support and scripting.

Qualifications

• Strong experience in Application Support within electronic trading or capital markets environments.
• Proficiency in scripting and automation including Python, Shell, PowerShell, SQL.
• Experience with ION trading platforms or similar vendor systems.

Responsibilities

• Oversee day-to-day production support activities.
• Act as a key point of contact for issue resolution.
• Support and enhance electronic trading systems.

Skills

Application Support within electronic trading

Linux and Windows server environments

Wintel Engineering

Market connectivity, networking, infrastructure

System performance analysis

Scripting and automation (Python, Shell, PowerShell, SQL)

CI/CD and deployment tools (Jenkins, Ansible)

Application stacks (Java, C++, .NET)

Stakeholder engagement

Incident management

ION trading platforms

Monitoring tools (Geneos, Zabbix)

Log analytics platforms (Splunk)

Job description

Role Overview

Talan is seeking an experienced Application Support Engineer to join a high-performing global team supporting the eTrading environment for a leading investment banking client.

Operating within a Production & Application Support function, this role sits at the heart of front-office trading technology, ensuring the stability, performance, and continuous improvement of critical electronic trading platforms.

You will work in a complex, low-latency environment supporting high-volume trading flows, interacting closely with trading desks, development teams, and infrastructure specialists across a global follow-the-sun support model.

Key Responsibilities

• Oversee day-to-day production support activities, including monitoring, incident management, and capacity planning
• Act as a key point of contact for issue resolution, liaising with traders, developers, infrastructure teams, and external vendors
• Take ownership of assigned applications and platforms, developing deep technical expertise
• Support and enhance electronic trading systems, including pricing engines, algorithmic trading components, and STP workflows
• Manage connectivity to external trading venues (e.g. exchanges, ECNs, market data providers)
• Contribute to system design improvements, focusing on resilience, scalability, and performance optimisation
• Coordinate release and change management activities, ensuring robust deployment processes
• Participate in a shift-based rota (7am–6pm coverage) and on-call support, including occasional weekend work
• Collaborate with global teams across Europe, North America, and Asia within a follow-the-sun support model
• Continuously improve documentation, monitoring, and operational processes

Required Skills & Experience

• Strong experience in Application Support within electronic trading or capital markets environments
• Solid expertise across Linux and Windows server environments
• Experienced withinWintel Engineering
• Good understanding of market connectivity, networking, and infrastructure (firewalls, multicast, latency considerations)
• Ability to analyse system performance across CPU, memory, network, and messaging layers
• Proficiency in scripting and automation (e.g. Python, Shell, PowerShell, SQL)
• Experience with CI/CD and deployment tools (e.g. Jenkins, Ansible, Artifactory)
• Familiarity with application stacks involving Java, C++, or .NET
• Strong stakeholder engagement skills with the ability to operate in a front‑office facing role
• Proven ability to manage incidents and deliver improvements in high‑pressure environments
• Experience with ION trading platforms or similar vendor systems
• Knowledge of multicast messaging and low‑latency trading architectures
• Monitoring tools such as Geneos or Zabbix
• Experience with Splunk or similar log analytics platforms