Interim Staff Systems Engineer - IT & Infrastructure

As Staff Systems Engineer within the IT & Infrastructure team, you'll be responsible for keeping the enterprise systems that power Taxfix running reliably, securely, and intelligently — from cloud infrastructure and identity management to network, device, and application performance. You'll architect and operate the backbone that enables every team at Taxfix to do their best work.

What you'll do

• Maintain and operate enterprise cloud infrastructure that serves employees and internal systems, ensuring high availability, performance, and security at all times.
• Lead and evolve identity management across the enterprise — including platform management and Okta — developing concepts and processes to govern both human and agentic identities in a scalable, secure way.
• Support the integration of new tools and systems based on business requirements, owning the technical evaluation, onboarding, and configuration end to end.
• Ensure enterprise systems remain up to date, with security configurations, patches, and compliance standards consistently applied across the board.
• Maintain security backups and redundancies for enterprise infrastructure, proactively identifying and closing gaps before they become incidents.
• Develop automations, AI-powered and agentic solutions, and scripts that reduce manual toil and improve the efficiency of infrastructure maintenance.
• Provide third-level support for cloud applications, acting as the deepest technical escalation point for complex issues and enablement of internal app deployment.
• Collaborate with SRE and platform engineering to assess risk, develop guardrails, and resolve incidents together with application owners.

What you'll need

• Strong, hands-on experience in enterprise cloud administration — ideally with GCP — and know how to design, operate, and scale cloud environments that real businesses depend on.
• Solid practical experience with Kubernetes, containerisation, and virtualisation technologies such as Docker and VMware.
• Deep networking knowledge — TCP/IP and related protocols are second nature to you, and you can diagnose and resolve network issues with confidence.
• Proficiency in at least one scripting or programming language such as Python or shell.
• Hands-on experience configuring and troubleshooting Google Workspace and Linux environments.
• Experience setting up and improving monitoring and visualisation systems, and understanding how good observability translates into faster incident response.

What they offer

• Free mental health coaching sessions and holistic well-being support.
• Monthly allowance for an extensive range of services, flexible and rollover-friendly.
• Employee stock options for all employees.
• 30 annual vacation days and flexible working hours.
• Generous learning budget and guidance from internal L&D experts.
• Work from abroad for up to six weeks every year.