004L Principal Windows Developer Senior LATAM
Share
Job Location:
Monthly Salary:
Posted on:
12 hours ago
Vacancies:
1 Vacancy
Job Summary
Principal Windows Developer
(Windows Platform / Native Development / Security)
Project Context
We are building a modern security-focused Windows platform that extends the native Windows 11 authentication and device experience using official system extensibility points and modern security standards.
The product integrates native Windows components backend services and mobile devices to deliver a passwordless enterprise-grade login experience fully compatible with corporate-managed Windows environments.
This role sits at a Principal level owning technical direction and critical implementation decisions across Windows-native components.
Responsibilities
- Act as technical owner of Windows-native development across the platform.
- Design and implement core Windows components that integrate deeply with OS-level services.
- Lead architecture decisions related to authentication security and system integration on Windows.
- Work with official Windows extensibility mechanisms to customize and extend system behavior.
- Collaborate closely with backend mobile and cloud engineers to deliver end-to-end platform features.
- Design and implement secure device-based workflows involving hardware services and user interaction.
- Ensure reliability performance and security of components running in privileged or constrained OS contexts.
- Drive best practices for native Windows development testing debugging and deployment.
- Mentor and guide other engineers on Windows internals and system-level design.
Required Technical Skills
- Extensive experience developing native Windows software.
- Advanced proficiency in C# and C for low-level and performance-critical components.
- Strong understanding of Windows internals including system services security boundaries and lifecycle events.
- Experience working with COM-based or similar system-level architectures.
- Solid background in secure software engineering:
- Cryptographic concepts
- Secure credential and secret handling
- Threat modeling at OS level
- Experience integrating Windows-native components with remote services or APIs.
- Ability to debug and ship system-critical software with high reliability requirements.
Domain Knowledge (Preferred)
- Familiarity with Windows authentication and identity concepts.
- Understanding of passwordless authentication models and modern credential systems.
- Experience extending or integrating with Windows login session or device management workflows.
- Knowledge of enterprise Windows environments (managed devices policies domain or cloud-joined machines).
Nice to Have
- Experience with Credential Providers or other Windows authentication extensibility points.
- Exposure to FIDO2 / Passkeys / WebAuthn.
- Experience integrating with Microsoft Entra ID / Azure AD.
- Experience with hardware interaction (USB Bluetooth HID).
- Familiarity with code signing installers and secure distribution for Windows components.
Tooling & Development Environment
- Visual Studio and native Windows toolchains.
- Advanced debugging techniques including remote debugging.
- Use of virtual machines for safe system-level testing.
- Structured build signing and release pipelines.
Ideal Profile
We are looking for a Principal Windows Developer who:
- Has deep experience working close to the Windows operating system.
- Thinks in terms of platform architecture not just feature delivery.
- Is comfortable making high-impact technical decisions in security-sensitive areas.
- Can operate with autonomy ownership and strong engineering judgment.
Engagement Type
- Contractor position
- Long-term engagement full-time dedication preferred
- Remote-friendly
What We Offer
- A high-impact Windows platform project with strong security and systems focus.
- Ownership of core Windows architecture and technical direction.
- Collaboration with senior engineers across backend mobile and cloud.
- The opportunity to work on modern authentication and device experiences for Windows.
Discover this and other opportunities at:
Key Skills
- Tomcat
- Risk Management
- ICD Coding
- Solaris
- Solution Architecture
- PaaS
- Middleware
- Perl
- Weblogic
- Jboss
- NetSuite
- Oracle
