Senior Full-Stack Engineer - AWS, Microservices, React

Quantum Technologies. LLC; Dallas, Northern (TX, KY); Hybrid; USD 120,000 - 180,000; Full time

Job summary

Quantum Technologies LLC is seeking a seasoned Full Stack Developer skilled in .NET or Java, with strong AWS experience and proficiency in Node.js, React, HTML/CSS. The role focuses on designing front-end and back-end solutions, integrating databases, and building secure, scalable microservices.

You will work in a fast-paced, collaborative environment, implementing CI/CD and automated testing with QA teams to deliver high-performance applications.

Qualifications

• 8+ years of experience in either .Net or Java development.
• Strong experience with Node.js and either .NET or Java.
• Cloud skills with AWS (Lambda, API Gateway, S3, etc.).
• Familiarity with microservices and RESTful API design.
• Knowledge of database integration (SQL, NoSQL).
• Understanding of security practices (OAuth, JWT, encryption).
• Experience with CI/CD pipelines
• Experience running automated tests with QA teams.

Responsibilities

• Design, develop, and maintain front end components using React, Node.js.
• Design, develop, and maintain backend services using AWS, Node.js, .NET, or Java.
• Create and optimize serverless applications using AWS Lambda and related technologies.
• Integrate and manage databases, ensuring data integrity and performance.
• Implement security measures and best practices throughout the development lifecycle.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Troubleshoot and resolve backend issues, ensuring high performance and responsiveness.

Skills

8+ years in .NET/Java

Node.js experience

AWS cloud experience

Microservices & REST APIs

SQL/NoSQL databases

OAuth/JWT/Security practices

CI/CD pipelines

QA automation collaboration

Tools

React

Node.js

AWS

RESTful APIs

SQL/NoSQL

OAuth/JWT

Job description

Quantum Technologies LLC is seeking a seasoned Full Stack Developer skilled in .NET or Java, with strong AWS experience and proficiency in Node.js, React, HTML/CSS. The role focuses on designing front-end and back-end solutions, integrating databases, and building secure, scalable microservices.

You will work in a fast-paced, collaborative environment, implementing CI/CD and automated testing with QA teams to deliver high-performance applications.