Senior Sysadmin (100% remote - UK)

at  Tether Operations Limited

JOIN TETHER AND SHAPE THE FUTURE OF DIGITAL FINANCE

At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains. By harnessing the power of blockchain technology, Tether enables you to store, send, and receive digital tokens instantly, securely, and globally, all at a fraction of the cost. Transparency is the bedrock of everything we do, ensuring trust in every transaction.

ABOUT THE JOB

Overview We’re seeking an experienced Senior Systems Administrator to architect, deploy, and maintain mission-critical infrastructure for our Tether Data Division. The ideal candidate will combine deep technical expertise with a security-first mindset.

A suitable candidate should be credible and exhibit

• Strong problem-solving and analytical abilities
• Experience managing mission-critical systems with 99.99% uptime requirements
• Excellent documentation and communication skills
• Proven track record of incident management and resolution
• Ability to work independently and as part of a global team
• Strong security, threat detection and mitigation experience

RESPONSABILITIES

• Design, implement, and maintain high-availability infrastructure solutions at scale with hundreds of servers

• Orchestrate deployments and updates across our infrastructure

• Implement and maintain robust monitoring, alerting, and incident response systems
• Collaborate with development teams to optimize application performance
• Conduct internal security audits and implement hardening measures

• Provide technical mentorship to junior team members

5+ years of hands-on experience with Linux systems administration

• Strong expertise in:
• Infrastructure as Code (Terraform, Ansible)
• Container orchestration (Docker/Podman)
• GPU container optimization and management
• Virtualization platforms (QEMU/KVM)
• Network architecture (VPN, SDN, Load Balancing)
• Security practices and infrastructure hardening
• NodeJS application deployment and scaling
• Monitoring and observability tools (Prometheus, Grafana)
• CI/CD pipelines (Jenkins / GitLab / Github CI)
• Cloud platforms (AWS, GCP)
• Version control systems (Git)
• Usage of FIDO2 and Yubikeys for server administration

Please refer the Job description for details