Senior Systems Administrator

A highly sophisticated, technology-driven investment firm is seeking a Senior Systems Administrator to own the reliability and performance of its core Linux infrastructure. This organization operates in a real-time, data-intensive environment where system stability and uptime are critical to business outcomes.This role is responsible for managing the full lifecycle of enterprise Linux systems across both physical and virtual environments. You’ll support mission-critical infrastructure including databases, storage platforms, and virtualization systems, while partnering closely with engineering and research teams to ensure seamless operations.The position is heavily focused on production reliability, operational excellence, and continuous improvement. You’ll drive automation initiatives, enhance monitoring and observability, and reduce operational overhead through thoughtful system design and tooling. While modern technologies like containers are present, the emphasis is on maintaining and evolving stable, high-performance systems.Key Responsibilities:Own uptime and performance of Linux systems (bare metal & virtualized)Administer infrastructure: databases, storage, virtualizationBuild automation and improve operational processesMaintain monitoring and incident response systemsCollaborate cross-functionally to support critical workloadsQualifications:8+ years of Linux systems administration in production environmentsExperience with PostgreSQL/MySQL, NetApp/ZFS, Proxmox/Hyper-VScripting with Python/Bash; automation tools like Ansible or TerraformExposure to Docker/Kubernetes (preferred)Strong troubleshooting and communication skills