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 RoleYou 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 integral 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 DoingMonitoring trading platforms and responding to incidentsTroubleshooting, recovery, and root cause analysisAutomating tasks and reporting (Bash, Python, Perl)Supporting application deployments and change processesWorking with financial messaging protocols (FIX / ITCH)Analysing Unix system performanceCollaborating with Ops, QA, Dev,



and Market Control teamsWhat We Are Looking ForExpert-level Unix/Linux command line experience is essentialAdvanced scripting skills in Bash, Python, and/or Perl, with the ability to demonstrate strong scripting logic and constructsAvailability to work late shifts (16:00 to 00:00 CET)A proactive mindset with a clear focus on application support over system administration or cybersecurityCommitment to a hybrid working model, attending the office 3 days a weekSolid troubleshooting and problem-solving abilityExperience with monitoring tools and system performanceFamiliarity with regular expressionsFluent written and spoken English is essentialCandidates must already be based in Spain with the right to workNice to HaveNetworking knowledge (TCP/IP, UDP, Multicast) and the ability to explain fundamental protocol differencesExperience with low-latency systemsExposure to financial markets or trading environments, specifically with FIX or ITCH protocolsExperience with monitoring tools like Nagios, Opsview, or ZabbixSpanish language skills (useful for local team interaction)Basic SQL or web technologiesA short notice periodWhat Is On OfferPerformance-related bonusHybrid working (3 days in the office)Collaborative, international team environmentOpportunity to work on cutting-edge trading systemsPlease 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.If you are passionate about Application Support, automation, and high-availability environments, and want to work in a role where your impact is immediate and visible, we would love to hear from you.#Referment
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📌 UNIX Application Support Engineer (Madrid)
🏢 Referment
📍 Madrid