Full Stack Developer - C#/.Net, React

The Planet Group; Madison (WI); Hybrid; USD 90,000 - 117,000; Full time

Job summary

The Planet Group is seeking an experienced Full Stack Developer with strong C#/.NET and React skills to support enterprise modernization initiatives in Madison, WI. You will help migrate critical systems, build scalable applications, and contribute to API-driven functionality in an Agile environment.

The ideal candidate will have solid web development experience, API integration capabilities, and a passion for modern frontend and backend teamwork within a hybrid work setting.

Qualifications

• 5+ years of professional web application development experience.
• 4+ years of hands-on C#/.NET development.
• Strong React experience, including Hooks and Context API.
• Experience integrating RESTful and GraphQL APIs.
• Proficient in UI architecture, responsive design with HTML5/CSS3.
• Excellent problem-solving and communication abilities.

Responsibilities

• Design, develop, and maintain full stack applications using React and C#/.NET.
• Build and enhance front-end features and reusable UI components.
• Collaborate with backend teams to integrate RESTful and GraphQL APIs.
• Develop responsive, accessible, high-performing web applications.
• Participate in architecture discussions, sprint planning, and code reviews.
• Troubleshoot and resolve issues across the technology stack.
• Support modernization and migration initiatives within enterprise apps.

Skills

Web development

C#/.NET

React

REST APIs

GraphQL

UI architecture

HTML5/CSS3

Hybrid teamwork

Problem solving

Job description

Duration: 12-Month Contract with Potential Extension

Schedule: Full-Time, 40 Hours/Week

Interview Process: 1-2 Rounds (Video Interview followed by In-Person Interview)

Compensation: $65-75/hour W2 or $75-85/hour 1099/C2C

Overview

We are seeking an experienced Full Stack Developer with strong expertise in C#/.NET and React to join a growing technology team supporting large-scale application modernization initiatives. This role offers the opportunity to contribute to the migration of critical business systems while helping enhance and modernize enterprise applications.

The ideal candidate will have a strong background in modern web development, API integration, and building scalable, user-focused applications in an Agile environment.

Key Responsibilities

• Design, develop, and maintain full stack applications using React and C#/.NET technologies
• Build and enhance front-end features and reusable UI components using modern React practices
• Collaborate closely with backend developers to integrate RESTful and GraphQL APIs
• Develop responsive, accessible, and high-performing web applications
• Participate in architecture discussions, sprint planning, code reviews, and technical design sessions
• Troubleshoot, debug, and resolve application issues across the technology stack
• Contribute to frontend best practices, testing strategies, and component libraries
• Support ongoing modernization and migration initiatives within enterprise application environments

Required Qualifications

• 5+ years of professional web application development experience
• 4+ years of hands-on experience with C#/.NET development
• Strong experience building applications with React
• Experience working with React Hooks, Context API, state management, and routing
• Experience integrating RESTful and/or GraphQL APIs
• Strong understanding of UI architecture and responsive design principles
• Proficiency with HTML5, CSS3, and component-based development frameworks
• Excellent problem-solving, communication, and collaboration skills
• Ability to work effectively in a hybrid team environment

Preferred Qualifications

• Experience with secure API design and authentication technologies such as OAuth and JWT
• Exposure to Azure cloud services
• Experience with CI/CD pipelines and DevOps practices
• Background working in microservices architectures
• Experience supporting enterprise-scale applications
• Familiarity with Agile development methodologies and code review best practices

What You'll Gain

• Opportunity to work on highly visible modernization initiatives in Financial Services & Banking
• Exposure to modern Microsoft technologies and contemporary web development practices
• Collaborative and supportive team environment
• Long-term contract opportunity with strong potential for extension
• Hybrid work schedule offering flexibility and work-life balance