Application Support Engineer

Selby Jennings; Amsterdam; On-site; EUR 70,000 - 100,000; Full time

Job summary

Selby Jennings in Amsterdam is seeking a Trading Application Support Engineer to monitor, maintain, and troubleshoot critical trading apps and exchange connectivity across global venues. You will ensure reliability of production systems and collaborate with traders, engineers, and infrastructure teams.

You will develop Python automation tools, perform root cause analysis, and support deployments and releases in a fast-paced trading environment requiring attention to detail and quick responses.

Qualifications

• 3+ years in Application Support, Production Support, Trading Support, or similar.
• Strong Linux administration and troubleshooting skills.
• Experience writing Python scripts for automation and tooling.
• Understanding of TCP/IP, DNS, routing, switching, and connectivity troubleshooting.
• Experience with monitoring/observability tools (Grafana, Prometheus, Datadog, Splunk, Kibana).
• Excellent communication with technical and non-technical stakeholders.

Responsibilities

• Monitor production trading applications and infrastructure using dashboards, monitoring, and alerting tools.
• Act as primary contact for production incidents and application-related issues.
• Troubleshoot Linux-based trading systems, performance bottlenecks, and connectivity issues.
• Investigate exchange connectivity, market data, and order flow across venues.
• Develop Python-based automation tools to improve operational efficiency.
• Perform root cause analysis for production incidents and drive permanent resolutions.
• Collaborate with software engineers on deployments, config changes, and releases.
• Analyze logs and metrics to proactively identify and resolve issues.
• Support traders in a real-time environment requiring fast response and precision.
• Contribute to monitoring, alerting, and observability improvements across stack.

Skills

Linux administration

Python scripting

Networking concepts

Monitoring/observability

Analytical problem-solving

Communication

Tools

Grafana

Prometheus

Datadog

Splunk

Kibana

SQL

Job description

A leading global proprietary trading firm is seeking a Trading Application Support Engineer to join its Amsterdam office. This role sits at the intersection of technology, trading, and operations, supporting the systems that underpin real-time trading across global markets.

You will be responsible for monitoring, maintaining, and troubleshooting critical trading applications and exchange connectivity, working closely with software engineers, traders, and infrastructure teams to ensure the reliability and performance of production systems. This is an excellent opportunity for someone who enjoys solving complex technical problems in a fast-paced, business-critical environment.

Responsibilities

• Monitor production trading applications and associated infrastructure using dashboards, monitoring, and alerting tools.
• Act as a primary point of contact for production incidents and application-related issues.
• Troubleshoot Linux-based trading systems, application failures, performance bottlenecks, and connectivity issues.
• Investigate exchange connectivity, market data, and order flow issues across global trading venues.
• Develop and maintain Python-based automation tools to improve operational efficiency and reduce manual processes.
• Perform root cause analysis for production incidents and drive permanent resolutions.
• Collaborate with software engineering teams on application deployments, configuration changes, and production releases.
• Analyze logs, metrics, and system behaviour to proactively identify and resolve issues.
• Support business users and trading teams in a real-time environment where responsiveness and attention to detail are critical.
• Contribute to monitoring, alerting, and observability improvements across the trading technology stack.

Requirements

• 3+ years of experience in Application Support, Production Support, Trading Support, Technical Operations, or a similar role.
• Strong Linux administration and troubleshooting skills.
• Experience writing Python scripts for automation, tooling, or operational support.
• Understanding of networking concepts including TCP/IP, DNS, routing, switching, and connectivity troubleshooting.
• Experience working with monitoring and observability tools such as Grafana, Prometheus, Datadog, Splunk, Kibana, or similar platforms.
• Strong analytical and problem-solving skills with the ability to diagnose complex production issues.
• Excellent communication skills and the ability to work effectively with both technical and non-technical stakeholders.
• Comfortable operating in a fast-paced environment with a strong focus on reliability and operational excellence.

Preferred Experience

• Experience supporting trading systems, financial applications, payment platforms, or other real-time mission-critical environments.
• Familiarity with FIX Protocol, exchange connectivity, market data feeds, or electronic trading systems.
• Experience with SQL and log analysis tools.
• Knowledge of incident management and production support best practices.
• Exposure to low-latency or high-performance technology environments.

What You'll Gain

• Direct exposure to electronic trading and global financial markets.
• The opportunity to work with highly skilled engineers and technology teams.
• A collaborative and intellectually challenging environment.
• Ownership of critical systems that have a direct impact on business performance.
• Significant opportunities for technical growth and career progression within a world-class technology organization.