Generative AI Solutions
Senior Infrastructure Engineer
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Shape the infrastructure that keeps the internet safer for families and communities across the globe. This is a hands-on senior role where your technical decisions will directly influence the reliability and performance of a platform trusted by users worldwide.
About the Company
Our client is a UK-headquartered, cloud-based internet filtering provider. They deliver highly customisable content and parental controls to households, businesses, and communities across the world, with a particular focus on making the internet a safer place for the people who need it most. Their platform supports Windows and Android devices, and their mission is straightforward: protect people online. They are a close-knit, mission-driven team that puts customers first and believes that great employment creates real opportunity.
The Role
As a Senior Infrastructure Engineer, you will take ownership of the systems that keeps the platform running reliably at scale. Reporting to the Head of Engineering, you will work closely with cross-functional teams to maintain critical infrastructure, drive continuous improvement, and respond quickly when it matters most. Here is what you will own:
- Manage and maintain bare-metal Linux servers, applying a deep understanding of operating system internals to optimise performance and resolve complex issues
- Oversee network components including switches, routers, firewalls, and proxy servers, ensuring security, efficiency, and robust network operations
- Provision and manage infrastructure resources using Terraform, and implement configuration management through Ansible and Puppet
- Deploy and manage Kubernetes clusters and work across Docker and container ecosystems to support scalable, resilient applications
- Administer Kafka messaging systems and manage Redis instances for caching, alongside PostgreSQL and MSSQL databases to ensure high availability and performance
- Build and maintain CI/CD pipelines, collaborate on code repositories using GitLab, and use Jira to track tasks and projects effectively
- Implement and manage monitoring solutions using Grafana and other tools, analysing system metrics to prevent outages before they happen
- Participate in an on-call rotation, providing emergency support during evenings and weekends as required
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What our Client is Seeking
Essential:
- Extensive experience with bare-metal Linux server management and administration
- Strong networking skills, including a thorough understanding of switches, routers, firewalls, and proxy servers
- Proficiency in Terraform for infrastructure as code
- Hands-on experience with Ansible and Puppet for configuration management
- Solid understanding of Kubernetes clusters and container orchestration
- Practical experience with Kafka and Redis
- Familiarity with GitLab for code repository management
- Experience building and maintaining CI/CD pipelines
- Proficiency in Grafana for monitoring and observability
- Knowledge of PostgreSQL database administration
- Comfortable using Jira for project and task management
- Willingness to participate in on-call duties, including evenings and weekends
- Strong problem-solving skills and attention to detail
- Clear, confident communication skills
Desirable:
- Experience with cloud platforms such as Azure or AWS would be an advantage
- Relevant certifications in Linux, networking, or cloud technologies would be a welcome addition
What They Offer
- Salary of £50,000 to £60,000
- Fully remote working environment with flexibility built in
- On-call support from a collaborative, experienced team
- Mentoring from senior team members who are invested in your growth
- Professional development and career growth opportunities
- The chance to work on infrastructure that serves a genuinely meaningful mission, protecting internet users across the globe.
Working Arrangements
This role is full time and fully remote, with the expectation that you are based in the UK and able to travel to the UK headquarters occasionally as required. The role includes an on-call rotation covering evenings and weekends.
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Only candidates eligible to work in the UK will be considered.
Our client is an equal opportunity employer and welcomes applications from all qualified individuals.
First interviews expected to be held w/c 17th August
How to Apply (PLEASE READ CAREFULLY)
To apply, please submit your application including your CV and a Cover Letter in a single PDF or Word document.
PLEASE NOTE: We are only able to accept applications which contain CV and cover letter sections.
We have provided some additional guidance on what to include in the cover letter section below.
COVER LETTER SECTION GUIDANCE FOR APPLICANTS
We'd like your cover letter to go beyond your motivation for the role. We're looking for evidence of how you actually work, not a summary of your CV.
Your letter should draw on real, specific situations from your career. We're interested in your hands-on experience at the infrastructure layer or the kind of work that requires genuine depth rather than familiarity. We'd like to understand how you've approached building and managing environments in a principled, repeatable way, and how you've handled things going wrong, including outside of normal hours.
We're also interested in how you think about the reliability of the systems you're responsible for — not just how you respond when something breaks, but how you work to get ahead of problems before they surface.
Finally, this is a role that sits within a wider organisation. We'd like to understand how you work with people outside your immediate discipline, particularly when the subject matter is technical and the audience isn't.
We're not looking for a particular format or length, but we will be looking for specificity including clear accounts of real situations, what you did, and what happened as a result.
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