Lead Software Engineer, Client Systems

PreVeil is hiring a hands-on Lead Software Engineer, Client Systems, to build and evolve software running on customer endpoints and coordinating securely with its cloud services. The role focuses on client architecture, synchronization and state management, secure protocols, reliability, and technical leadership across Windows and macOS.

Responsibilities:

• Own the architecture and implementation of software running on customer endpoints and its communication with PreVeil’s cloud services
• Design reliable synchronization and state-management systems across clients, devices, and backend infrastructure, including offline behavior, retries, event ordering, conflict resolution, and recovery from partial failures
• Build software that interacts with local storage, file systems, networking, authentication, access controls, and operating-system services
• Design and evolve secure protocols and interfaces across client and cloud components
• Ensure the security and reliability of our applications through secure coding techniques and thoughtful system design
• Diagnose and resolve complex issues involving performance, scalability, connectivity, and reliability
• Collaborate with engineering, product, design, infrastructure, and security teams throughout feature development
• Guide and mentor junior and mid-level engineers through code reviews, design reviews, and hands-on technical leadership
• Modernizing and evolving PreVeil’s Windows and macOS client architecture
• Improving real-time synchronization, local-state management, and reliability across devices
• Building enterprise identity capabilities such as SSO, Okta, Active Directory, provisioning, and role-based access control
• Advancing semantic search across end-to-end encrypted email and file content
• Improving client performance, diagnostics, testing, release processes, and production reliability
• Mentoring junior and mid-level engineers and raising engineering standards across the team

Requirements:

• BS or MS in Computer Science or a related field, or equivalent practical experience
• Strong computer science fundamentals, including data structures, algorithms, concurrency, networking, and systems design
• Substantial experience building commercial software that runs on a client, endpoint, desktop application, embedded device, or similar distributed environment
• Experience shipping production software used by external customers and supporting it through performance, reliability, and failure scenarios
• Experience designing distributed systems involving synchronization, consistency, event delivery, retries, fault tolerance, or multi-device coordination
• Demonstrated ownership of complex technical initiatives from architecture and design through implementation and production operation
• Ability to lead technical projects, influence architectural direction, and mentor other engineers while remaining hands-on
• Proficiency in at least one production programming language. No specific language is required
• Experience building native or cross-platform applications for Windows, macOS, Linux, embedded devices, or endpoint environments
• Experience working with local storage, file systems, access controls, sockets, network protocols, or operating-system services
• Understanding of cryptographic fundamentals, including public-key encryption, symmetric encryption, and digital signatures
• Experience with secure identity and authentication systems such as PKI, WebAuthn, SSO, SAML, OIDC, SCIM, Active Directory, or role-based access control
• Experience with file synchronization, offline-first systems, replication, consistency models, conflict resolution, or multi-device state management
• Experience building security, privacy, collaboration, endpoint, or other reliability-sensitive products