Full-Stack .NET Engineer — ASP.NET Core & React

Quantum Technologies LLC; Fremont (CA); On-site; USD 90,000 - 130,000; Full time

Job summary

Quantum Technologies. LLC is seeking a skilled Full Stack Developer to join our development team in Fremont, CA.

You will build scalable web applications using ASP.NET Core, C#, and front-end frameworks like React or Angular, and design robust RESTful APIs with MySQL databases. You will collaborate across product, QA, and analytics teams, troubleshoot issues, and contribute to architecture while exploring AI-enabled capabilities.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• 3–6 years of experience in full-stack application development.
• Strong hands-on experience with C#, ASP.NET Core, and RESTful API development.
• Experience designing and working with MySQL databases, including query optimization.
• Strong understanding of object-oriented programming principles, SOLID principles, and software design patterns.
• Experience with version control systems such as Git.
• Familiarity with Agile/Scrum development methodologies.
• Basic knowledge of AI integration, AI APIs, or LLM-based application features is an added advantage.

Responsibilities

• Design, develop, and maintain full-stack web applications using ASP.NET Core, C#, and React or Angular.
• Develop robust, secure, and scalable RESTful APIs and backend services.
• Design, optimize, and manage MySQL databases, including writing efficient queries and stored procedures where required.
• Collaborate with product owners, business analysts, QA engineers, and other developers throughout the software development lifecycle.
• Troubleshoot, debug, and resolve application issues to ensure optimal performance, security, and reliability.
• Participate in code reviews and ensure adherence to coding standards, software design principles, and development best practices.
• Contribute to application architecture, technical design, and continuous improvement initiatives.
• Explore and integrate AI-powered capabilities into applications using AI APIs, large language models (LLMs), or other AI services, where applicable.
• Maintain technical documentation for developed features, APIs, and application solutions.

Skills

Full-stack development

Analytical skills

Teamwork

Education

Bachelor's degree in Computer Science/IT or related field

Tools

C#

ASP.NET Core

React

Angular

MySQL

RESTful APIs

Git

Job description

Quantum Technologies. LLC is seeking a skilled Full Stack Developer to join our development team in Fremont, CA.

You will build scalable web applications using ASP.NET Core, C#, and front-end frameworks like React or Angular, and design robust RESTful APIs with MySQL databases. You will collaborate across product, QA, and analytics teams, troubleshoot issues, and contribute to architecture while exploring AI-enabled capabilities.