Sr. Software Engineer

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.

This is a hands-on technical leadership role for someone who can move quickly, think strategically, and balance speed with long-term maintainability.

Key ResponsibilitiesApplication DevelopmentOwn and productionize modern React and TypeScript applications, refactoring prototype or AI-generated code into secure, maintainable systems.

Design and build API-first, cloud-native full-stack solutions using JavaScript/TypeScript, Node.js, and relational or NoSQL databases.

Implement complex business logic such as pricing rules, workflow automation, and multi-level authorization.

Support and modernize legacy components as needed.

Cloud & ArchitectureDesign and maintain scalable cloud-native architectures.

Develop serverless backend services and optimize database performance.

Implement secure document storage and file management solutions.

Enforce security best practices, identity management, and access controls.

API & Database DevelopmentDesign and optimize relational and NoSQL database schemas.

Build RESTful APIs with structured service layers and role-based access.

Implement event-driven and real-time data patterns.

Manage third-party integrations, data migrations, and ETL processes.

DevOps & DeploymentEstablish CI/CD pipelines for automated testing and deployment.

Configure hosting environments and manage environment variables and secrets.

Implement monitoring, logging, and performance optimization.

Ensure reliability, scalability, and cost efficiency.

Collaboration & LeadershipMentor team members transitioning from legacy or low-code platforms to modern web stacks.

Conduct code reviews and establish development best practices.

Translate business requirements into technical solutions.

Document architecture decisions and development standards.

Bridge rapid prototyping efforts with production-ready deployment.