Principal Fullstack Engineer - .NET & React (Remote, Anywhere in Pakistan, USD Salary)

Requirements:

• 10+ years of hands-on experience in full-stack development
• Strong expertise in .NET Core, SQL, and backend system design
• Solid experience with React.js and modern frontend development practices
• Strong understanding of OOP fundamentals, data structures, and algorithms
• Proficiency in software design patterns and development methodologies
• Experience with API security, caching, and microservices architecture
• Hands-on experience with Git and collaborative development workflows
  Familiarity with DevOps fundamentals and CI/CD concepts
• Basic understanding and practical usage of AI-assisted development tools such as GitHub Copilot
• Exceptional communication skills, both written and verbal
• Strong leadership and mentoring capabilities
• Ability to work effectively in cross-functional and fast-paced environments
• Strong problem-solving and analytical mindset
  

Responsibilities:

• Lead the end-to-end design, development, and delivery of full-stack applications
• Own system architecture, technical decisions, and coding standards
• Mentor engineers through code reviews, design discussions, and best practices
• Collaborate closely with Product, QA, and DevOps teams to ensure high-quality delivery
• Design, develop, and maintain scalable backend services using .NET Core
• Apply strong OOP principles, software design patterns, and architectural best practices
• Implement logging and monitoring using Application Insights or similar tools
• Optimize backend performance using LINQ, SQL query optimization, and efficient database design
• Implement caching strategies to enhance application performance
• Ensure API security, authentication, and authorization standards
• Design and manage microservices-based architectures
• Develop responsive and high-performance user interfaces using React.js
• Implement reusable components and manage component lifecycle effectively
• Optimize frontend performance using Virtual DOM and best practices
• Implement React routing and application speed enhancements
• Use frontend frameworks such as Bootstrap or similar CSS frameworks
• Follow best practices for Git-based version control and branching strategies
• Collaborate with DevOps teams on CI/CD pipelines, deployments, and scalability
• Ensure application stability, performance, and maintainability across environments