427 jobs for “Systems Administrator”
Cloudflare London
Build and maintain Go microservices and APIs that manage IP address assignment, BGP control and traffic engineering across Cloudflare's global anycast network. Work spans distributed systems, PostgreSQL, Kafka and Clickhouse, collaborating closely with network and reliability engineers on tooling used at massive scale.
Cloudflare London €66,000 – €91,000 pa
Senior technical anchor on Cloudflare's Agentic Discovery team, architecting high-throughput services that make web properties readable, discoverable and callable for autonomous AI agents. Defines emerging agent protocols (MCP, WebMCP, UCP), authors architectural specs, mentors engineers and leads incident response across edge infrastructure and data pipelines.
CrowdStrike United States US$120,000 – US$185,000 pa
Builds and operates core systems for the Falcon Complete team, developing features that help security analysts triage and remediate threats at scale. Work spans Golang, Python, microservices, Kafka, Kubernetes and cloud-native tooling, with on-call rotations and heavy automation. The team is distributed across the US and UK and works asynchronously.
CrowdStrike Boston, United States US$140,000 – US$215,000 pa
Lead a team of engineers building self-service infrastructure-as-code primitives, high-availability services and cloud cost optimization across a multi-cloud environment. The role combines people management, architecture of large-scale distributed systems, and hands-on work with Terraform, Pulumi, Python or Go, Linux and SRE practices.
Databricks London
Expert-level technical leader owning the most complex enterprise customer engagements, driving consumption strategy and executive relationships as the definitive platform authority. Leads multi-workload architecture, migrations, real-time systems and AI/ML at scale, while mentoring junior architects and orchestrating cross-functional teams.
Databricks London
Join a team of engineers to build features across the Databricks platform, with openings spanning full stack, backend, infrastructure, systems, tools, cloud, and databases. Interns own a project end-to-end from design through code and feedback, supported by a dedicated mentor, while learning to build a platform that scales quickly without sacrificing quality or security.
Amazon Thames Valley, Berkshire, GBR
Leads the design, operation, scaling and expansion of AWS network and software infrastructure for Regions serving enterprise, federal and civilian customers. Manages multiple teams of network and systems engineers, owning capacity forecasting, change control, automation and operational health, while representing networking to customers and senior leadership.
Amazon London
Leads 24/7 engineering operations at a strategic AWS data centre, managing shift planning, PPM schedules and critical electrical and mechanical infrastructure such as generators, UPS, switchgear, chillers and air handling units. Drives PUE and efficiency improvements, site projects and operational budgets while leading integrated technical teams and third-party vendors. Also owns health and safety compliance, security protocols, certifications and emergency incident response.
Spectrum IT Recruitment Southampton £70,000 – £75,000 pa
Builds automation frameworks and tooling in Python, develops Infrastructure as Code with Terraform, and creates reusable templates and code generation platforms using Jinja. Automates Windows environments with PowerShell, manages configuration with Puppet, and builds CI/CD integrations for infrastructure delivery alongside cloud and platform teams.
Pathfinder London £75,000 – £90,000 pa
Accountable for service health in a major financial services organisation, taking a "build it, own it, run it" approach to keep systems reliable, scalable and recoverable. Day to day involves incident resolution, improving monitoring, automating routine work and making releases safer, while representing SRE across engineering and delivery teams.
Deerfoot Recruitment Solutions Staines £350 – £430 pd
Builds mission-critical airline operations software, from load optimisation to regulatory-compliant load sheets, working across Java microservices and a TypeScript/Angular front end. Owns problems end to end in Agile product teams, building APIs and messaging with REST, Kafka and MQ on Azure and Kubernetes, and uses AI-assisted tools like Copilot and Claude Code daily.
NVIDIA Zürich, Switzerland
Designs and implements complex data center solutions, covering architecture, hardware and software deployment, performance and ROI analysis. Works with developers and architects on emerging technologies, producing reference deployment guides and running proofs of concept for business units. Requires hands-on Linux, Kubernetes, Docker, QEMU/KVM and Ansible skills in a multidisciplinary team.
CBSbutler Holdings Limited trading as CBSbutler Leeds £480 – £500 pd
Hands-on technical leadership role guiding the redevelopment of a public sector Profiles Manager and supporting services. You set technical direction while staying close to the code, working with engineers and architects on secure, scalable microservices and REST APIs. The stack centres on C#/.NET, Azure, Terraform and GitHub Actions, with AI-assisted development using GitHub Copilot.
Randstad Technologies Recruitment London £300 – £350 pd
Build and operate an enterprise-scale provisioning engine that automates standardized, compliant GCP networking resources such as VPCs, routing, subnets and endpoints. The role combines production platform coding in Go or Python with Terraform-based infrastructure as code, CI/CD automation, Kubernetes, and operational ownership including monitoring and incident root-cause analysis.
Adria Solutions Manchester £80,000 – £110,000 pa
Lead and mentor a team of software engineers building cloud-native microservices and distributed backend systems, balancing people management with hands-on technical direction. You'll shape architecture, drive CI/CD and testing best practices, and work closely with Product, DevOps and QA in an Agile environment, with Golang and AWS at the core of the stack.
