Sr. Full Stack Developer [.NET and JavaScript (React JS, JSON, and Node.js)] to support building, maintaining, and scaling web applications

Our valued client is looking for a Sr. Full Stack Developer [.NET and JavaScript (React JS, JSON, and Node.js)] to support building, maintaining, and scaling web applications

A 1 year contract. 100% remote. Must work EST time zone. 7.5 hour work days.

Tasks include:

• Build, maintain, and scale modern web applications that serve both internal and external clients
• This role bridges front-end and back-end development, requiring a deep understanding of architecture, performance optimization, and user experience
• Design, develop, and maintain responsive web applications using React.js and .NET Core.
• Build and maintain robust RESTful APIs and microservices with Node.js and .NET.
• Integrate and parse structured data using JSON for communication between front-end and back-end systems.
• Collaborate with UI/UX designers, PO, BA, DevOps engineers, and QA to deliver high-quality products.
• Troubleshoot, debug, and upgrade software and perform regular code reviews.
• Work within an Agile/Scrum environment to meet sprint deadlines and deliverables.
• Ensure application performance, scalability, and security
• Develop a full-featured customer-facing platform with real-time data updates and analytics
• Implement single-page applications (SPAs) using React that consume backend APIs
• Design back-end services in .NET Core and Node.js, optimized for performance and scalability
• Handle large volumes of data exchange using JSON with strong error handling and validation
• Participate in containerization and cloud deployment (AWS or Azure) as part of CI/CD pipeline

Must have Skills:

• Reliability security clearance
• Experience as a Full Stack Developer building Front-end applications
• Proven experience in building robust and scalable front-end applications using modern JavaScript (ES6+). Strong understanding of core JavaScript concepts, asynchronous programming, and browser-based development best practices
• Hands-on experience designing and implementing RESTful APIs. Skilled in creating clean, maintainable endpoints that support efficient data exchange between front-end and back-end systems, with a focus on performance, security, and scalability
• React.js and JavaScript - Advanced front-end development skills for building modern UI components and managing state
• .NET Core - Solid experience in building scalable and maintainable APIs and services
• Node.js + JSON - Proficiency in building middleware and working with structured data interchange formats
• Demonstrates familiarity with application security tools such as Software Composition Analysis (SCA) and Static Application Security Testing (SAST)
• Capable of identifying and monitoring application insights to effectively debug and resolve issues
• Leads technical discussions and conducts peer code reviews to uphold high-quality coding standards

Nice to have:

• Bachelor’s degree in computer science or equivalent experience
• Experience with TypeScript, Redux, or GraphQL.
• Exposure to Docker, Kubernetes, and cloud platforms like Azure or AWS.
• Familiarity with CI/CD pipelines and test automation tools (Jest, Mocha, xUnit).
• Knowledge of database systems like SQL Server, MongoDB, or PostgreSQL