Application Support Engineer
talan· Engineering & Development IT
About this role
Company Description
Job Description
Location: London (On-site, 5 days per week)
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 within Wintel 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
Desirable Skills
- 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
- OS performance tuning and optimisation
Qualifications
Additional Information
#TalanUK
Frequently Asked Questions
Is the salary disclosed for the Application Support Engineer position at talan?
The salary for this Application Support Engineer role at talan is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Application Support Engineer position at talan located?
This Application Support Engineer role at talan is based in England, London, London, England, United Kingdom, gb. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Application Support Engineer role at talan full-time or part-time?
This is listed as a Full time position. It is posted as a Application Support Engineer role in the Engineering & Development IT department at talan.
Which team or department does the Application Support Engineer at talan belong to?
This Application Support Engineer position is part of the Engineering & Development IT department at talan. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Application Support Engineer position at talan?
Click the "Apply Now" button on this page. You will be redirected to talan's official application portal hosted on smartrecruiters where you can submit your application directly.
When was the Application Support Engineer job at talan posted?
This Application Support Engineer position at talan was posted on Jun 10, 2026. Apply as soon as possible — early applications are often reviewed first.
Application Support Engineer
talan
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