<p>Robert Half is seeking a Senior Full-Stack Developer to lead the evolution of modern web applications and cloud-native systems for our client in Wisconsin. This role will take AI-assisted prototypes and transform them into secure, scalable, production-grade solutions. You will own application architecture across the stack and help guide the transition from legacy platforms to modern web technologies.</p><p><br></p><p>This is a hands-on technical leadership role for someone who can move quickly, think strategically, and balance speed with long-term maintainability.</p><p><br></p><p><strong>Key Responsibilities</strong></p><p><br></p><p>Application Development</p><ul><li>Own and productionize modern React and TypeScript applications, refactoring prototype or AI-generated code into secure, maintainable systems.</li><li>Design and build API-first, cloud-native full-stack solutions using JavaScript/TypeScript, Node.js, and relational or NoSQL databases.</li><li>Implement complex business logic such as pricing rules, workflow automation, and multi-level authorization.</li><li>Support and modernize legacy components as needed.</li></ul><p>Cloud & Architecture</p><ul><li>Design and maintain scalable cloud-native architectures.</li><li>Develop serverless backend services and optimize database performance.</li><li>Implement secure document storage and file management solutions.</li><li>Enforce security best practices, identity management, and access controls.</li></ul><p>API & Database Development</p><ul><li>Design and optimize relational and NoSQL database schemas.</li><li>Build RESTful APIs with structured service layers and role-based access.</li><li>Implement event-driven and real-time data patterns.</li><li>Manage third-party integrations, data migrations, and ETL processes.</li></ul><p>DevOps & Deployment</p><ul><li>Establish CI/CD pipelines for automated testing and deployment.</li><li>Configure hosting environments and manage environment variables and secrets.</li><li>Implement monitoring, logging, and performance optimization.</li><li>Ensure reliability, scalability, and cost efficiency.</li></ul><p>Collaboration & Leadership</p><ul><li>Mentor team members transitioning from legacy or low-code platforms to modern web stacks.</li><li>Conduct code reviews and establish development best practices.</li><li>Translate business requirements into technical solutions.</li><li>Document architecture decisions and development standards.</li><li>Bridge rapid prototyping efforts with production-ready deployment.</li></ul><p><br></p>