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Posted 02 August, 2026

Cyber Security Engineer

Square One Resources
Sheffield, ENG, GB Full Time

Job Description

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Lead Cyber Security Engineer

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Location: Sheffield, UK (Hybrid - 3 Days Onsite Mandatory)
Rate: £450-£500 per day (Inside IR35)
Contract: 31th August 2027

About the Role\n

We are seeking an experienced Lead Cybersecurity Engineer to join a global Cybersecurity Science & Analytics team responsible for developing next-generation cybersecurity and data analytics capabilities.

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This is an excellent opportunity for a hands-on engineer with expertise in Azure Cloud, Data Engineering, Platform Engineering and DevOps to help build and maintain large-scale cloud data platforms that support advanced cybersecurity analytics.

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Working within a collaborative team of cybersecurity specialists, data engineers and cloud professionals, you will design, develop and optimise secure data pipelines, cloud infrastructure and analytics platforms using modern cloud-native technologies.

Key Responsibilities\n
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    Design, develop and maintain scalable Azure-based data pipelines.

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    Build and optimise ETL processes for large-scale cybersecurity datasets.

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    Develop automated data ingestion and provisioning solutions.

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    Engineer cloud infrastructure following Site Reliability Engineering (SRE) principles.

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    Support production environments, platform operations and continuous improvements.

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    Build Infrastructure as Code using Terraform and automation tooling.

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    Develop solutions using Azure services including Data Factory, Databricks and Data Lake.

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    Improve platform reliability, scalability, security and cloud cost optimisation.

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    Work closely with engineering teams to onboard new enterprise data sources.

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    Contribute to CI/CD pipelines and DevOps best practices.

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Required Skills & Experience\n

We're looking for candidates with experience across several of the following technologies:

Cloud & Infrastructure\n
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    Microsoft Azure

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    Azure Active Directory (Azure AD)

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    Azure Data Factory

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    Azure Databricks

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    Azure Data Lake

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    Azure Storage

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    Azure Functions

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    Azure Monitor

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    Azure Logic Apps

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    Kubernetes

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    Azure DevOps

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\nProgramming & Automation\n
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    Python

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    PowerShell

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    Bash

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    Terraform

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    SQL

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    Kusto Query Language (KQL)

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    GitHub

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    CI/CD Pipelines

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\nData Engineering\n
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    ETL Pipeline Development

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    Data Integration

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    Data Modelling

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    Data Warehousing

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    Cloud Data Pipelines

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    Data Cleansing & Transformation

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    Real Time Data Processing

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\nInfrastructure & Platforms\n
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    Linux (Red Hat preferred)

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    Apache/Nginx

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    Elasticsearch

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    Grafana

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    Prometheus

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    Cosmos DB

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    Kafka or Azure Event Hubs

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\nDesirable Experience\n
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    SIEM or SOAR platforms

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    Cybersecurity Analytics

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    Azure Security

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    Financial Services or other highly regulated environments

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    Knowledge of cybersecurity frameworks such as NIST, ISO 27001, CIS or OWASP

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About You\n

You'll be an experienced Cloud, Platform or Data Engineer who enjoys solving complex technical challenges and continuously learning new technologies.

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You'll have experience designing cloud-native solutions, automating infrastructure and building reliable, scalable data platforms while working within agile engineering teams.

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Previous experience in cybersecurity is advantageous but not essential.

What's on Offer\n
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    £450-£500 per day (Inside IR35)

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    Hybrid working (3 days per week onsite in Sheffield)

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    Opportunity to work on enterprise-scale cloud and cybersecurity platforms

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    Exposure to modern Azure technologies and large-scale data engineering

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    Collaborative engineering environment with excellent long-term contract potential

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If you're interested in learning more or would like to discuss the opportunity in confidence, we'd love to hear from you.