Senior Application Support Engineer

About the Role We’re looking for a hands-on Application Support Engineer to join our tech team at a digital asset firm. You’ll support high-performance trading and data systems, troubleshoot issues, collaborate with developers, and improve operational processes. This is a hands-on role that allows you to dig deep, including at the code level. Key Responsibilities Monitor and manage production systems for trading and market data Investigate and resolve system and data issues, including code-level debugging Collaborate with developers to implement improvements Provide multi-tier support to internal and external stakeholders Assist with onboarding new team members, clients, and applications Enhance monitoring, runbooks, and automation Requirements Experience with high-performance or real-time systems (finance/trading a plus) Strong Linux and command-line skills Knowledge of market data, order flows, and related protocols Ability to read and troubleshoot code (C++, JavaScript, Kotlin) SQL proficiency and familiarity with Git/CI-CD Experience with AWS, Prometheus, Grafana, RabbitMQ Tech Stack Backend: Kotlin, Node.js, TypeScript, RabbitMQ Cloud: AWS Databases: MySQL Monitoring: Prometheus, Grafana, CloudWatch, OpenSearch

Location: City of London, London, GB

Posted Date: 11/11/2025