System administrator linux Jobs in Frankfurt

Crypto Finance Group, part of Deutsche Börse Group, provides professional digital asset solutions to institutional clients. The Group comprises Crypto Finance AG, regulated by FINMA in Switzerland, offering trading, custody, and wallet services, as well as Crypto Finance (Deutschland) GmbH, regulated by BaFin in Germany, offering trading and custody services. In January 2025, Crypto Finance secured a MiCAR license for the European market as one of the first providers in the EU. Crypto Finance AG is a SIX-approved crypto custodian for ETP issuers.

For more information, please visit our website at About us - Crypto Finance

Join us at Crypto Finance Group, where everyone can make a significant impact. We invite you to be part of our journey and help shape the future of our company. The starting date is as soon as possible at our office on the 24th floor of the Prime Tower in Zurich, Switzerland, or in our office in Frankfurt am Main, Germany.

Responsibilities

• Extend and maintain a scalable, heterogeneous infrastructure system over multiple data centers with switches, firewalls, HSMs, as well as physical servers, virtual devices, cloud
• Extend and maintain existing and new blockchain nodes
• Improve and maintain Kubernetes clusters
• Contribute to hybrid infrastructure projects
• Ensure the secure operation of backends (advanced load and fail balancing with HAProxy, Apache, and Nginx, database server replication)
• Proactively control and improve existing monitoring, logging, tracing, and alerting infrastructure (Prometheus, Loki, Tempo, Grafana)
• Maintain services once they are live by measuring and monitoring availability, latency, and overall system health
• Drive integration of secure technologies and applications
• Patch management; continually deploy new firmware and software
• Maintain and create technical documentation of infrastructure as code/data
• Stay technically up to date on latest technologies and cloud native environments

Requirements

• Degree in computer science or at least 5 years of experience in systems engineering
• In-depth, hands-on Linux system administration skills, Linux certifications (LFCS, LFCE, RHCS… etc.) are a plus
• Great interest in servers, automation, and IT security
• General enthusiasm for open-source software
• Networking skills (switches, firewalls, VPNs, network protocols)
• Knowledge of the existing open-source ecosystem (Linux, Unix, HAProxy, Nginx, Apache, Squid, MariaDB, PostgreSQL, Prometheus, Grafana, Ansible, Docker)
• Proven experience in systems engineering and defensive security (DDoS protection, intrusion prevention)
• Above average project management and organizational skills
• High level of integrity and quality awareness
• Cloud (Azure, GCP) experience is an advantage
• Excellent knowledge of English; German is beneficial
• Knowledge in blockchain technologies and crypto assets is desirable

Benefits

• Be part of an international, fast-paced blockchain and fintech team led by experienced professionals
• Shape the future of finance while working at the cutting edge of B2B digital asset solutions
• Contribute to a collaborative, entrepreneurial culture with flat hierarchies
• Take on meaningful responsibility with room for learning and professional growth
• Gain deep industry insights and make a tangible impact
• Join regular company-wide meetings, knowledge-sharing sessions, and team events
• Enjoy a modern and central workplace in Zurich with top-tier infrastructure

Our culture

At the heart of our company, we prioritize:

• Innovation and Continuous Learning
• Collaboration and Knowledge Sharing
• Entrepreneurial Spirit and Flat Hierarchies
• Values such as Excellence, Delivery, Ownership, Passion, and Unity

Please note:

• We do not accept CVs from recruiting or staffing agencies.
• Due to the Swiss/German labor legislation, we can only accept applicants who have the right to work in Switzerland or Germany (are in possession of a Swiss/German work permit or are EU/EFTA citizens). All other applications will not be considered.
• If this is the position for you, and you have a Swiss/German work permit and/or EU citizenship, please send us your complete application, incl. cover letter, CV, and references.