Windows Installer and Build Automation Engineer

Job Description :

Work Schedule

Environmental Conditions

Position Summary:

At Thermo Fisher Scientific, our mission is to serve science, and help our customers make the world healthier, cleaner, and safer.

The DevOps Engineer is responsible for the full build and delivery lifecycle for products for scientific applications. This role involves working closely with development, QA, DevOps, and release teams to ensure smooth installation, upgrade, patching, and uninstalling experiences across product lifecycles. The ideal candidate will have hands-on experience installer test automation/validation of windows installer workflows.

Responsibilities

• Build, develop, and maintain Windows installer packages using WiX Toolset and related technologies.
• Implement custom installer logic using C#, WiX custom actions, and extensions.
• Develop and handle MSI, MSP, bootstrapper/Burn packages, and related deployment artifacts.
• Ensure installers align with product versioning, compatibility, deployment policies, and Windows guidelines, Silent/interactive installation.
• Build automated validation workflows for installer testing, including:
• Develop test tools or scripts for automation using C#, PowerShell, or Python.
• Develop and maintain installer-related build/release processes in Azure DevOps (ADO) pipelines or similar CI/CD tools.
• Implement packaging, code signing, artifact storage, and deployment automation.
• Solve pipeline failures related to packaging, signing, and release artifacts.
• Support release engineering for on-time, high-quality product builds.

Qualifications & Experience:

• Bachelor's in Computer Science, Engineering, or related fields
• 3-7 years of hands-on experience in Windows installer development.
• Strong expertise with WiX Toolset (MSI, MSBuild, Burn/Bootstrapper, custom actions).
• Knowledge of Windows OS internals related to installers-registry, services, drivers, environment variables, permissions, etc.
• Solving problems using MSI logs, Windows Event Viewer, and debugging tools.

Preferred Skills:

• Experience with code-signing workflows (certificates, timestamping).
• Knowledge of PowerShell scripting for automation.
• Exposure to virtualized build environments / git hub source control system