Senior Full Stack Engineer React.js / Node.js / React Native

Job Description - Senior Full Stack Engineer

Senior Full Stack Engineer - React.js / Node.js / React Native

Location: Louisville, Dallas, Arlington, or Chicago

Work Mode: 100% Onsite - Must work from office

Experience: 10+ years in Full Stack Engineering

Role Summary

We are seeking a highly experienced Senior Full Stack Engineer with strong expertise in React.js, Node.js/.NET, and React Native to design, develop, integrate, and maintain scalable web and mobile applications.

The ideal candidate will have strong hands-on experience across frontend, backend, and mobile development, with excellent knowledge of JavaScript/TypeScript, REST/GraphQL APIs, mobile development tools, and modern software engineering practices.

Mandatory Technical Skills

Candidates must have hands-on experience in the following:

1. React Native - Mandatory
   • Strong hands-on experience developing mobile applications using React Native.
   • Experience with mobile application architecture, debugging, and deployment.
2. React.js - Mandatory
   • Strong experience developing modern, responsive web applications using React.js.
3. Node.js / Backend - Mandatory
   • Strong Node.js backend development experience OR strong .NET backend experience.
   • Experience developing APIs and backend services.
4. JavaScript & TypeScript - Mandatory
   • Strong understanding of JavaScript and TypeScript.
   • Excellent knowledge of ES6+ syntax and language features.
5. Full Stack Engineering - Mandatory
   • 10+ years of overall Full Stack Engineering experience.
   • Ability to work across frontend, backend, APIs, and mobile applications.

Core Technical Skills

• React.js
• React Native
• Node.js / .NET
• JavaScript / TypeScript
• ES6+
• REST APIs
• GraphQL
• Object-Oriented Programming
• Mobile application development
• Offline storage
• Third-party API/dependency integration
• Application debugging and troubleshooting

Mobile Development Skills

• Hands-on React Native development.
• Familiarity with Xcode for iOS application builds and debugging.
• Familiarity with Android Studio for Android application builds and debugging.
• Understanding of mobile application lifecycle and deployment.
• Knowledge of offline storage and mobile data handling.
• Ability to troubleshoot native dependencies and build issues.

Backend & API Development

• Develop scalable backend services using Node.js or .NET.
• Design and consume REST and GraphQL APIs.
• Understand document request models and API communication.
• Integrate third-party services and dependencies.
• Troubleshoot API, integration, and dependency-related issues.

AI Coding / Modern Development

• Experience with AI coding assistants such as GitHub Copilot or equivalent.
• Ability to use AI-assisted development tools for coding, debugging, refactoring, testing, and documentation.
• Understanding of responsible use of AI-assisted development in enterprise environments.

Key Responsibilities

• Design, develop, test, and maintain scalable full-stack web and mobile applications.
• Develop responsive frontend applications using React.js.
• Develop mobile applications using React Native.
• Build backend services and APIs using Node.js and/or .NET.
• Develop and integrate REST and GraphQL APIs.
• Write clean, maintainable, well-documented JavaScript/TypeScript code.
• Troubleshoot application and third-party dependency conflicts.
• Work with Xcode and Android Studio for mobile builds and debugging.
• Implement offline storage and mobile application capabilities.
• Collaborate with architects, product owners, UX/UI designers, QA, and other engineering teams.
• Participate in design, development, code reviews, testing, deployment, and production support.
• Ensure application performance, scalability, security, and reliability.
• Use AI coding assistants effectively to improve development productivity.

Required Soft Skills

• Excellent written and verbal communication skills.
• Ability to translate complex technical requirements into actionable solutions.
• Strong problem-solving and analytical skills.
• Ability to work independently and collaboratively.
• Strong ownership and accountability.
• Ability to communicate effectively with technical and non-technical stakeholders.

Education & Experience

• Bachelor's degree in Computer Science, Engineering, Information Technology, or related field.
• 10+ years of Full Stack Engineering experience.
• Strong recent hands-on development experience with React.js, Node.js/.NET, and React Native.