Cyber Security Software Developer Jobs in Illinois

Keeper Security is hiring a Senior Client Software Engineer to join our engineering team. This is a 100% remote position, with an opportunity to work a hybrid schedule for candidates based in the Chicago, IL or El Dorado Hills, CA metro areas.

Keeper’s cybersecurity software is trusted by millions of people and thousands of organizations globally. Keeper is published in 23 languages and is sold in over 150 countries. Join one of the fastest-growing cybersecurity companies and help deliver secure, enterprise‑ready client experiences that support scalable deployment, strong usability and seamless device management.

Keeper Security is one of the fastest-growing cybersecurity software companies that protects thousands of organizations and millions of people in over 150 countries. Keeper is a pioneer of zero‑knowledge and zero‑trust security built for any IT environment. Its core offering, KeeperPAM®, is an AI‑enabled, cloud‑native platform that protects all users, devices and infrastructure from cyber attacks. Recognized for its innovation in the Gartner Magic Quadrant for Privileged Access Management (PAM), Keeper secures passwords and passkeys, infrastructure secrets, remote connections and endpoints with role‑based enforcement policies, least privilege and just‑in‑time access. Learn why Keeper is trusted by leading organizations to defend against modern adversaries at KeeperSecurity.com.

This role will focus on client‑side application development across installation workflows, end‑user UI, application lifecycle management and enterprise deployment support. The ideal candidate has strong experience with C# and Rust, along with a background building desktop or endpoint client applications that can be deployed and managed at scale through enterprise deployment tools and MDM platforms.

• Design, develop and maintain client‑side applications and features for Keeper’s endpoint and desktop experiences
• Build and improve installation, configuration, upgrade and update workflows for client software
• Develop user‑facing functionality and administrative controls using C# and Rust
• Support enterprise deployment scenarios across MDMs, endpoint management platforms and software distribution tools
• Partner with product, support and engineering teams to improve usability, deployment reliability and client performance
• Implement client‑side workflows for enrollment, setup, policy application, status visibility and user notifications
• Troubleshoot and resolve issues involving installs, updates, client behavior and deployment compatibility
• Contribute to software packaging, silent installation and mass deployment readiness for enterprise customers
• Write clean, testable and maintainable code with strong attention to security, usability and reliability
• Participate in design reviews, code reviews and technical planning across client development initiatives

• 5+ years of software engineering experience
• Strong experience with C#
• Experience utilizing Rust in production, or strong Rust proficiency with the ability to contribute quickly in a mixed‑language environment
• Experience building desktop, endpoint or client‑side applications
• Experience with software installation, packaging, upgrade flows and application lifecycle management
• Experience supporting enterprise software deployments at scale
• Familiarity with MDMs and endpoint management platforms used to deploy and manage applications
• Experience designing and implementing client‑side UI and administrative workflows
• Strong understanding of Windows application behavior, permissions, user context and managed‑device considerations
• Strong debugging and troubleshooting skills in client‑side and deployment‑related scenarios
• Bachelor’s degree in Computer Science, Software Engineering or a related technical field, or equivalent practical experience

• Experience with Microsoft Intune, Microsoft Endpoint Configuration Manager, Jamf, Workspace ONE or similar device‑management tools
• Experience with MSI, MSIX, installers or software packaging technologies
• Experience building silent install and mass deployment workflows for enterprise customers
• Experience in cybersecurity, endpoint security or privileged access‑related products
• Experience supporting telemetry, health reporting or diagnostics within desktop applications
• Experience working across mixed C# and Rust environments

• Medical, Dental & Vision (inclusive of domestic partnerships)
• Employer Paid Life Insurance & Employee/Spouse/Child Supplemental Life
• Voluntary Short/Long Term Disability Insurance
• 401K (Roth/Traditional)
• A generous PTO plan that celebrates your commitment and seniority (including paid Bereavement/Jury Duty, etc.)
• Above‑market annual bonuses

Keeper Security, Inc. is an equal opportunity employer and participant in the U.S. Federal E‑Verify program. We celebrate diversity and are committed to creating an inclusive environment for all employees.

Classification: Exempt