Full Stack Engineer

Title: Full-Stack Enterprise Systems Developer

3-month contract

Onsite - Austin, TX

$80-115/hr

The Developer, Gatekeeper App will design, build, and maintain a secure internal application within client OS that supports authentication, access control, and operational workflows for Gatekeeper use cases. This role is responsible for delivering a reliable, maintainable, and user-friendly experience that integrates with MCP, Cloudflare Access, OAuth-based authentication, and related APIs.

Key Responsibilities

• Design and build the Gatekeeper app using modern frontend development practices
• Implement interactive user flows for setup, configuration, validation, and status reporting
• Integrate with MCP tools, Cloudflare Access, and OAuth-based authentication flows
• Develop secure API integrations with internal and external systems
• Manage environment variables, secrets, and configuration in a secure and maintainable way
• Add input validation, error handling, logging, and troubleshooting support
• Partner with stakeholders to refine requirements and improve workflow usability
• Ensure the application follows security, reliability, and Cloudflare OS standards
• Document behavior, setup steps, and operational considerations for maintainability

Required Qualifications

• 3+ years of software development experience, or equivalent practical experience
• Strong experience with React
• Strong experience with JavaScript or TypeScript
• Experience building and maintaining web applications or internal tools
• Experience integrating with REST APIs and JSON-based services
• Familiarity with OAuth, authentication, and authorization concepts
• Familiarity with secure configuration and secrets handling
• Understanding of debugging, logging, and production support practices
• Working knowledge of security best practices, including least privilege and input validation

Preferred Qualifications

• Experience building internal enterprise applications or workflow tools
• Familiarity with Cloudflare products, Cloudflare Access, or Zero Trust concepts
• Experience with MCP or similar tool-orchestration patterns
• Experience designing admin, setup, or configuration interfaces
• Experience supporting secure applications in an operational environment

Core Technical Skills

• React
• JavaScript or TypeScript
• MCP integration basics
• OAuth and Cloudflare Access concepts
• REST API integration
• Secrets and configuration management
• Debugging and observability
• Security fundamentals
• UX for setup and operational workflows

Success Measures

• The app is secure, stable, and maintainable
• Authentication and access control work end to end
• Setup and configuration flows are clear and supportable
• API integrations are reliable and well documented
• Issues can be diagnosed and resolved efficiently

Working Style

• Collaborates effectively with technical and non-technical stakeholders
• Communicates clearly and documents decisions and implementation details
• Takes ownership of quality, security, and operational readiness
• Balances speed of delivery with maintainability and supportability