Machine Learning Research Engineers

Barclays Bank Plc; Greater London; Hybrid; GBP 40,000 - 45,000; Full time

Job summary

A leading financial institution in London is seeking an experienced Infrastructure Test Analyst to validate and strengthen the foundation of modern platforms. The role involves testing across various infrastructure components, writing technical documentation, and driving automation. Ideal candidates should have solid experience in both Windows and Linux environments, as well as familiarity with cloud platforms like Azure and AWS. This position offers a competitive salary range of £40,000 to £45,000 per annum, alongside attractive benefits and a hybrid work model.

Qualifications

• Solid experience testing infrastructure across Windows/Linux, virtualised platforms, and cloud (Azure, AWS, GCP).
• Strong understanding of networking fundamentals, load balancing, firewalls, DNS, certificates, and IAM.
• Hands-on experience with CI/CD tooling such as Azure DevOps, GitLab, or Jenkins.

Responsibilities

• Test infrastructure across network layers, compute, storage, virtualisation, and cloud services.
• Run performance, fail-over, resilience, capacity, and security tests.
• Ensure CI/CD pipelines and environments are configured correctly.

Skills

Testing infrastructure

Networking fundamentals

Scripting skills in PowerShell, Bash or Python

CI/CD tooling

Performance test tooling

Education

Relevant certifications (cloud, networking, ISTQB)

Tools

Azure DevOps

GitLab

Jenkins

Terraform

Docker/Kubernetes

Job description

We’re looking for an Infrastructure Test Analyst who lives and breathes the foundations of modern platforms – networks, servers, cloud, deployments, the whole engine room. If you enjoy validating complex systems, spotting weaknesses before they become outages, and generally keeping chaos at bay, you’ll fit right in.

About the Role

Infrastructure Test Analyst – Hybrid / London
£40,000 to £45,000 per annum + benefits

Responsibilities

• Test infrastructure across network layers, compute, storage, virtualisation, and cloud services.
• Run performance, fail‑over, resilience, capacity, and security tests that actually mean something.
• Ensure CI/CD pipelines, deployment automation, and environments are built, configured, and behaving correctly.
• Use observability tools (Splunk, Prometheus, CloudWatch, etc.) to track down issues before they become incidents.
• Produce concise technical documentation – test plans, validation reports, defect logs – nothing fluffy.
• Drive infrastructure testing automation using scripting and pipeline integration.

Qualifications

• Solid experience testing infrastructure across Windows/Linux, virtualised platforms, and cloud (Azure, AWS, GCP).
• Strong understanding of networking fundamentals, load balancing, firewalls, DNS, certificates, and IAM.
• Hands‑on experience with CI/CD tooling such as Azure DevOps, GitLab, or Jenkins.
• Comfort working with logs, metrics, traces, and diagnostic tooling.
• Scripting skills in PowerShell, Bash, or Python.
• Desirable: Knowledge of Terraform, Bicep/ARM, Ansible, or container platforms (Docker/Kubernetes).
• Experience with performance test tooling or chaos/fail‑over frameworks.
• Relevant certifications (cloud, networking, ISTQB).

Who You Are

You’re analytical, unflappable, and a natural problem‑solver. You communicate clearly, push for good engineering practice, and you don’t panic when the monitoring dashboard turns red – you get curious.

If you want to work in an environment where infrastructure actually gets the attention it deserves, we’d love to hear from you.