Full-Stack Developer

Apply now: Full-Stack Developer, Remote. Start date is 2 weeks from verbal offer for this 4-month contract position.Job Title: Full-Stack DeveloperLocation-Type: Remote, U.S.-based (CST working hours required)Start Date: 2 weeks from verbal offerDuration: Contract, 4 months with potential extensionCompensation Range: $59-$81/hr on W2Benefits: Eligible for Health, Dental, Vision, and 401KVisa Sponsorship: Not eligible for visa sponsorshipJob Description:The client is seeking a Full-Stack Developer to design, build, and maintain a secure internal application that supports authentication, access control, and operational workflows, integrating with MCP, OAuth-based authentication, and related APIs.Job Summary•Design and build a secure internal application using modern frontend development practices•Implement interactive user flows for setup, configuration, validation, and status reporting•Integrate with MCP tools, OAuth-based authentication flows, and related access management systems•Develop secure API integrations with internal and external systems using REST and JSON-based services•Manage environment variables, secrets, and configuration in a secure and maintainable way•Add input validation, error handling, logging, and troubleshooting support throughout the application•Partner with stakeholders to refine requirements, improve workflow usability, and document operational considerationsMinimum Requirements:•3 years of software development experience, or equivalent practical experience•Strong hands-on experience with React and JavaScript or TypeScript•Demonstrated experience building MCP servers and integrating MCP tool-orchestration patterns•Experience integrating with REST APIs and JSON-based services•Familiarity with OAuth, authentication, and authorization concepts•Familiarity with secure configuration and secrets handling•Working knowledge of security best practices, including least privilege and input validationPreferred Qualifications:•Experience building internal enterprise applications, admin interfaces, or workflow tools•Familiarity with Zero Trust concepts or similar access management frameworks•Experience designing setup, configuration, or operational interfaces for internal users•Experience supporting secure applications in a production or operational environment•Background in tech, SaaS, or manufacturing industries