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.

Siga leyendo para comprender completamente lo que este trabajo requiere en cuanto a habilidades y experiencia. Si su perfil encaja, presente su candidatura.

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

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- 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

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- 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

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- 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

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- 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. xqbhyrx No sponsorship or relocation assistance is available for this position.

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📌 UNIX Application Support Engineer (943018D) (Madrid)
🏢 Referment
📍 Madrid