Interim Staff Systems Engineer - IT & Infrastructure

Go Fractional; Berlin; Hybrid; EUR 90.000 - 140.000; Vollzeit

Benefits dieser Stelle

Mental health coaching

Monthly flex allowance

Employee stock options

30 vacation days

Learning budget

Work from abroad up to six weeks

Team social events

Tax declaration support

Dogs in the office

Zusammenfassung

Taxfix is seeking a Staff Systems Engineer in Berlin to maintain and scale our enterprise cloud infrastructure. This freelance interim role focuses on cloud ops, identity management (Okta), security, and automation to support a fast-moving, hybrid workforce.

You will collaborate with SRE and platform teams to ensure high availability and resilient architecture while improving observability and incident response.

Qualifikationen

• Extensive hands-on experience with enterprise cloud administration (preferably GCP).
• Solid experience with Kubernetes, containers, and virtualization (Docker/VMware).
• Strong networking skills (TCP/IP and related protocols).
• Proficiency in scripting or programming (Python or shell).
• Experience configuring Google Workspace and Linux environments.
• Ability to implement observability for fast incident response.
• Engineering or computer science background.

Aufgaben

• Maintain and operate enterprise cloud infrastructure with high availability.
• Lead identity management including Okta for scalable security.
• Evaluate, onboard, and configure new tools and systems end-to-end.
• Ensure security configurations, patches, and compliance across the board.
• Maintain security backups and redundancies for enterprise infrastructure.
• Manage network, device management, and systems for a hybrid workforce.
• Develop automations and AI-powered solutions to reduce manual toil.
• Provide third-level support for cloud applications and deployments.
• Collaborate with SRE and platform engineering to resolve incidents.
• Contribute to enterprise architecture improvements.
• Tune application stacks (Apache, Ruby) for performance.

Kenntnisse

Enterprise cloud administration

Kubernetes

Docker

VMware

Networking TCP/IP

Python/Shell scripting

Google Workspace

Linux environments

Monitoring/Observability

Ausbildung

Engineering background

Tools

GCP

Okta

Apache

Ruby

Jobbeschreibung

The opportunity

As our 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. Reporting to our Director of IT & Infrastructure, and collaborating closely with cross-functional stakeholders across the business, you'll architect and operate the backbone that enables every team at Taxfix to do their best work. In a company that moves fast and thinks big, you'll be the person who makes sure the foundation never wobbles.

This is an interim position on a freelance basis.

Your responsibilities

• 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.
• Manage and improve network, device management, and systems, keeping the environment stable, modern, and fit for a growing, hybrid workforce.
• 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.
• Collaborate with the Director of IT to continuously improve the enterprise architecture and infrastructure landscape, contributing strategic thinking alongside hands‑on execution.
• Own performance tuning of application stacks, including communication and messaging between applications, load management, and components such as Apache and Ruby.

Your profile

• You bring 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.
• You have solid practical experience with Kubernetes, containerisation, and virtualisation technologies such as Docker and VMware, and you're comfortable navigating complex, layered infrastructure.
• Your networking knowledge is deep and grounded — TCP/IP and related protocols are second nature to you, and you can diagnose and resolve network issues with confidence.
• You implement best practices for network security and governance, ensuring that access, segmentation, and policy controls are consistently applied and continuously improved.
• You're proficient in at least one scripting or programming language such as Python or shell, and you use code as a tool to make infrastructure smarter and more maintainable.
• You have hands‑on experience configuring and troubleshooting Google Workspace and Linux environments, and you know how to keep them healthy and secure.
• You've set up and improved monitoring and visualisation systems, and you understand how good observability translates into faster incident response and better decision‑making.
• A background in engineering or computer science is a plus — what matters most is that you bring structured thinking and hands‑on experience to make systems work together.

Why Taxfix?

• A chance to do meaningful, people‑centric work with an international team of passionate professionals.
• Holistic well‑being with free mental health coaching sessions.
• A monthly allowance to spend on an extensive range of services that you can use and roll over as flexibly as you like.
• Employee stock options for all employees—because everyone deserves to benefit from the success they help to create.
• 30 annual vacation days and flexible working hours.
• A generous learning budget to support your personal and professional development and guidance from our internal L&D experts.
• Work from abroad for up to six weeks every year. Just align with your team, and then enjoy your trip.
• Plenty of opportunities to socialise as a team. In addition to internal meetups, our international team hosts regular get‑togethers—virtually and in person when possible.
• Free tax declaration filing, of course, through the Taxfix app—and internal support for all personal tax‑related questions.
• Have a four‑legged friend in your life? We're happy to have dogs join us in the office.

Location: Berlin
Employment Type: Full time
Location Type: Hybrid
Department: Corporate IT