ApplicationSupportEngineer

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