The Head of Infrastructure is responsible for keeping all user-facing services and other development and production systems at Pretty Technical running smoothly. The position requires the candidate to apply sound engineering principles, operational discipline, and mature automation to our operating environments and the various Pretty Technical codebases.

The Head of Infrastructure specialises in systems (operating systems, storage subsystems, networking), while implementing best practices for availability, reliability, scalability and cost control. It is a hands-on position that requires a strong skillset in a variety of different technologies as well as the ability to mentor staff, writing documentation and being involved in future planning for the business.

• Propose ideas and solutions within the Infrastructure Department to reduce the workload through automation.
• Plan, design and execute solutions within Infrastructure Department to reach specific goals agreed within the team.
• Plan and execute configuration change operations both at the application and the infrastructure levels.
• Provide emergency response either by being on-call or by reacting to symptoms according to monitoring and escalation when needed. 
• Actively look for opportunities to improve the availability and performance of the system by applying the learnings from monitoring and observation. 

• Share the learnings publicly through issues, runbooks, documentation and blog posts.

•  Chef (basic syntax, recipes, cookbooks) and Ansible (basic syntax, tasks, playbooks).
• Terraform basic syntax and CI/CD configuration, pipelines, jobs.
• Cloud resources provisioning and configuration through CLI/API.
• Kubernetes basic understanding, CLI, service re-provisioning.
• Provision and setup metric in Prometheus, Thanos, and Graphana, alerts and silences.
• Provision and setup logs and queries for general questions.
• Operating system (Linux) configuration, package management, startup and troubleshooting.
• Block and object storage configuration.
• Kafka cluster setup and tuning.
• Networking VPCs, proxies and CDNs.

• Self-organise through issues and epics.
• Improves documentation all around, either in application documentation, or in runbooks, explaining the why, not stopping with the what.
• Root cause analysis and corrective actions.
• C1 level English at a minimum.
• Confident in written and spoken client facing communication in English.

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  Think about systems: edge cases, failure modes,
  behaviors, specific implementations.

• Know your way around Linux and the Unix Shell.

• Know what is the use of configuration management systems like Chef and Ansible.

• Have supervised other engineers and built team based workflows.

• Have strong programming skills: Shell, and Go and/or Python.

• Have an urge to collaborate and communicate asynchronously.

• Have an urge to document all the things so you don’t need to learn the same thing twice.

• Have an enthusiastic, go-for-it attitude. When you see something broken, you can’t help but fix it.

• Have an urge for delivering quickly and effectively, and iterating fast.

• Have experience with Nginx, HAProxy, Docker, Kubernetes, Terraform, or similar technologies

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  Run our infrastructure with AWS, Kubernetes, Ansible, Terraform and CI/CD.

• Build monitoring that alerts on symptoms rather than on outages.

• Document every action so your findings turn into repeatable actions and then into automation.

• Improve operational processes (such as deployments and upgrades) to make them as boring as possible.

• Design, build and maintain core infrastructure that enables scaling to support tens of thousands of concurrent users.

• Debug production issues across services and levels of the stack.

• Plan the growth of Pretty Technical’s infrastructure.

• Set up and run on-call support during GMT business hours to respond to incidents that impact any of Pretty Technical’s systems availability and customer SLAs.