Senior Full Stack Developer – React & .NET
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Title: Senior Full Stack Developer – React & .NET Full Stack Developer
Location: Arden Hills, MN (Hybrid-3 days/week)
Job Type: C2CSend resumes to: hr@irow9.com
More roles: www.irow9.com/careers
Job Summary:
We are seeking a Senior Full Stack Developer with deep expertise in React and .NET to lead the design and development of scalable, enterprise-grade web applications. In this role, you will serve as a senior technical engineer and partner working closely with product, business, and DevOps teams to deliver high-quality solutions to Modernize legacy .net/react application used for Dairy Foods formulation at a manufacturing plant.
Key Responsibilities:
- Software Development (~70% of time)
- Technical Leadership Lead the design and implementation of full‑stack solutions using React and .NET /.NET CoreCreate and implement application architecture, technology standards, and engineering practices according to the guidelines.
- Participate in and contribute to code reviews ensuring code quality, security, and maintainability
- Provide technical guidance during planning, estimation, and delivery
- Use of AI in code generation and testing to comply with company standards
- Front-End (React)
- Architect and develop complex, scalable front-end applications using React, JavaScript (ES6+), and/or TypeScriptEstablish patterns for state management, component design, and performance optimization
- Ensure high standards for usability, accessibility, and responsive design
- Collaborate with UX/UI designers and product teams to shape user experiences
- Drive front-end modernization and continuous improvement initiatives
- Back-End (.NET)
- Design and build robust .NET / .NET Core services and APIsLead API design, integration patterns, and service-to-service communication
- Implement scalable data access patterns and optimize database performance
- Ensure adherence to security, observability, and reliability best practices
- Support and evolve back-end architecture, including monolith-to-microservices strategies where applicable
- Collaboration & Delivery (30% of time)
- Partner with product owners and business stakeholders to translate requirements into technical solutions
- Develop and manage CI/CD pipelines, oversee deployments, and monitor production environments for this application
- Troubleshoot and resolve complex production issues
- Contribute to technical documentation, standards, and architectural decision records (ADRs)
- Support Agile/Scrum delivery and continuous improvement
- Working with offshore development teams
Required Qualifications:
- Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience 7+ years of professional software development experience, including full stack roles
- Strong hands-on experience with ReactStrong back-end experience with .NET / .NET Core and C#Proven experience designing and consuming RESTful APIsStrong understanding of SQL Server and relational database design
- Experience with Git and modern development workflows
- Experience working in Agile environments
- Cloud experience Microsoft Azure (App Services, Azure SQL, Functions, DevOps)
- Experience with TypeScriptExperience designing or operating microservices architectures
- Familiarity with CI/CD, infrastructure-as-code, and DevOps practices
- Experience with automated testing strategies (unit, integration, end-to-end)
- Exposure to Docker and/or Kubernetes
- Experience supporting application modernization or legacy system migration
- Soft Skills & Leadership Competencies
- Strong technical judgment and problem-solving skills
- Ability to communicate complex technical concepts to non-technical stakeholders
- Comfortable leading through influence rather than authority
- Proactive, ownership-driven mindset
- Passion for, quality, and continuous improvement