Referment is partnering with a leading pan-European trading platform to find a talented Unix Application Support Engineer to join their growing operations team in Madrid. This is a fantastic opportunity to work in a high-performance, real-time trading environment, supporting critical systems that power financial markets across Europe and beyond.

The Role

You will be part of a highly skilled team responsible for supporting both production and test trading platforms, ensuring stability, performance, and reliability in a fast-paced environment. This role is dedicated to application support, providing a great opportunity for those looking to apply their Unix skills to complex financial software systems. Please note that this is a specialized application support position rather than a pure system administration or cybersecurity role.

This role is particularly exciting as the business expands into the US market, meaning you will play a key part in supporting international trading activity. To support these general markets, applicants must be available to work a late shift pattern from 16:00 to 00:00 CET. We operate a hybrid working model, requiring team members to attend the office 3 days a week.

What You Will Be

Doing - Monitoring trading platforms and responding to incidents - Troubleshooting, recovery, and root cause analysis - Automating tasks and reporting (Bash, Python, Perl) - Supporting application deployments and change processes - Working with financial messaging protocols (FIX / ITCH) - Analysing Unix system performance - Collaborating with Ops, QA, Dev,



and Market Control teams What We Are Looking For - Expert-level Unix/Linux command line experience is essential - Advanced scripting skills in Bash, Python, and/or Perl, with the ability to demonstrate strong scripting logic and constructs - Availability to work late shifts (16:00 to 00:00 CET) - A proactive mindset with a clear focus on application support over system administration or cybersecurity - Commitment to a hybrid working model, attending the office 3 days a week - Solid troubleshooting and problem-solving ability - Experience with monitoring tools and system performance - Familiarity with regular expressions - Fluent written and spoken English is essential - Candidates must already be based in Spain with the right to work Nice to Have - Networking knowledge (TCP/IP, UDP, Multicast) and the ability to explain fundamental protocol differences - Experience with low-latency systems - Exposure to financial markets or trading environments, specifically with FIX or ITCH protocols - Experience with monitoring tools like Nagios, Opsview, or Zabbix - Spanish language skills (useful for local team interaction) - Basic SQL or web technologies - A short notice period What Is On Offer - Performance-related bonus - Hybrid working (3 days in the office) - Collaborative, international team environment - Opportunity to work on cutting-edge trading systems Please note: Candidates must already have the right to work in Spain and be locally based. No sponsorship or relocation assistance is available for this position. #Referment

📌 UNIX Application Support EngineerC) (Madrid)
🏢 remoteo
📍 Madrid