Secure .NET CI/CD Engineer | On-Prem Build & Deploy

Deerfoot IT Resources Limited; City Of London; Hybrid; GBP 83,000 - 129,000; Full time

Job summary

Deerfoot IT Resources Limited is seeking a Build & Deployment Engineer to own the on-premises CI/CD toolchain, covering C#/.NET development and Octopus Deploy implementation. You will build, secure and deploy pipelines across Windows and Linux, with strong integration into security controls and auditability.

The role involves working in a hybrid London environment, aligning with a major financial services platform, and delivering reliable, repeatable deployments while improving secure coding

Qualifications

• Experience building and maintaining enterprise-grade CI/CD pipelines.
• Strong hands-on C#/.NET development and debugging skills.
• Proficiency with Windows and Linux deployment patterns.
• Familiarity with secure coding practices (SAST/SCA, secrets management).
• Experience with on-premise toolchains and automation tooling.

Responsibilities

• Engineer, administer and support the on-premises build/tooling stack.
• Build and maintain automated CI/CD pipelines and standard templates for application teams (Windows & Linux).
• Develop and troubleshoot C#/.NET code behind deployment integrations and automation tooling.
• Diagnose complex build/deployment failures across environments and repos.
• Migrate applications from legacy tooling to Octopus Deploy.
• Define and embed pipeline security controls (SAST, SCA, secrets) and SBOM governance.
• Coordinate with Change/Release management and Cyber Security teams.
• Support platform upgrades, patching, resilience, monitoring and incident response.

Skills

C# development

NET Framework/CORE

PowerShell

Git workflows

Secure coding

CI/CD pipelines

Windows deployment

Linux deployment

Octopus Deploy

TeamCity

GitHub Enterprise

JFrog Artifactory

JFrog Xray

Azure DevOps Server

Visual Studio

MSBuild

NuGet

IIS

REST APIs

SAST/SCA tooling

Tools

Octopus Deploy

TeamCity

GitHub Enterprise

JFrog Artifactory

JFrog Xray

Azure DevOps Server

Visual Studio

MSBuild

NuGet

IIS

REST APIs

Job description

Deerfoot IT Resources Limited is seeking a Build & Deployment Engineer to own the on-premises CI/CD toolchain, covering C#/.NET development and Octopus Deploy implementation. You will build, secure and deploy pipelines across Windows and Linux, with strong integration into security controls and auditability.

The role involves working in a hybrid London environment, aligning with a major financial services platform, and delivering reliable, repeatable deployments while improving secure coding