C# Developer (Tools and Installers)
About The Position
ThreatLocker® is a leader in endpoint protection technologies, providing enterprise-level cybersecurity tools to improve the security of servers and endpoints. The ThreatLocker® platform with Application Allowlisting, Ringfencing™, Storage Control, Elevation Control, Endpoint Network Control, Configuration Management, and Operational Alert solutions are leading the cybersecurity market toward a more secure approach of blocking the exploits of application vulnerabilities. We are seeking a mid-level C# Developer to design, build, and maintain internal tools and software installers that support our products and operations. This role focuses on creating reliable, user-friendly utilities and deployment solutions that streamline workflows and improve system usability. You’ll work closely with engineering, QA, and DevOps teams to develop efficient tooling, automate processes, and ensure smooth software installation and updates. The role will be based in Orlando, FL and is an in-office position.
Requirements
- 3–5 years of professional experience in software development
- Strong proficiency in C# and .NET (Framework or .NET Core/5+)
- Experience building Windows desktop applications (WinForms, WPF, or similar)
- Hands-on experience with installer technologies (WiX preferred, or InstallShield/NSIS)
- Solid understanding of Windows OS, file systems, registry, and services
- Experience with version control systems (e.g., Git)
- Strong debugging and problem-solving skills
- Strong attention to detail, especially in reliability and edge cases
- Ability to work independently and manage priorities
- Good communication skills and ability to collaborate across teams
- Proactive mindset toward improving processes and tooling
Nice To Haves
- Experience with PowerShell or scripting for automation
- Familiarity with CI/CD pipelines (Azure DevOps, GitHub Actions, Jenkins, etc.)
- Knowledge of packaging and deployment best practices
- Experience with MSI customization, custom actions, and upgrade strategies
- Exposure to security practices related to installers and system-level tools
- Basic understanding of networking or system administration concept
- Experience with driver or low-level system integrations
- Familiarity with virtualization or endpoint environments
- Experience working on security-focused or enterprise software tools
Responsibilities
- Design, develop, and maintain desktop applications and internal tools using C# and .NET
- Build and maintain software installers (e.g., MSI, EXE) using tools such as WiX, InstallShield, or similar
- Develop automation utilities to support deployment, configuration, and diagnostics
- Collaborate with DevOps and QA to improve build, release, and deployment pipelines
- Troubleshoot installation issues and ensure reliable upgrade and rollback mechanisms
- Write clean, maintainable, and well-documented code
- Participate in code reviews and contribute to best practices
- Optimize performance and reliability of tools and installer processes
- Work with product teams to understand requirements and translate them into technical solutions
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
Education Level
No Education Listed
Number of Employees
1-10 employees
