Senior Full-Stack Engineer for AI‑Driven, Scalable Platform

DiscountMugs; Medley (FL); On-site; USD 120,000 - 170,000; Full time

Job summary

BEL USA is seeking a Senior Full-Stack Software Engineer in the United States to design, build, and maintain scalable software across the full stack for internal and external users.

You will partner with Product, Design, and Engineering leadership to guide technical direction, improve platform performance, and uphold modern development practices, while contributing to engineering standards, tooling, and reliability improvements.

Qualifications

• 5+ years of professional software engineering experience, including ownership of production systems.
• Hands-on experience with Node.js, React, and TypeScript, including component architecture, state management, data-fetching patterns, forms, accessibility, profiling, and testing (e.g., React Testing Library, Playwright).
• Experience designing and implementing APIs, asynchronous patterns, and scalable back-end services.
• Solid foundation in web fundamentals: HTTP, caching, cookies, security headers/CSP, OAuth/OIDC, secure coding.
• Strong experience with SQL and NoSQL database design, migrations, and performance optimization.

Responsibilities

• Design and build modern eCommerce services within a scalable, secure, AI-driven platform.
• Develop high-quality front-end interfaces using React or similar frameworks.
• Implement and maintain APIs, data models, microservices, and background workers.
• Design and optimize SQL/NoSQL schemas, queries, and overall data performance.
• Own the full development lifecycle: design, coding, code reviews, testing, deployment, and documentation.
• Write clean, maintainable, well-tested code aligned with engineering standards.
• Instrument applications with logging, metrics, tracing, and contribute to reliable alerting and runbooks.

Skills

Node.js

React

TypeScript

API design

Web security basics

Testing

Education

Bachelor's degree in computer science or related field

Tools

React Testing Library

Playwright

Job description

BEL USA is seeking a Senior Full-Stack Software Engineer in the United States to design, build, and maintain scalable software across the full stack for internal and external users.

You will partner with Product, Design, and Engineering leadership to guide technical direction, improve platform performance, and uphold modern development practices, while contributing to engineering standards, tooling, and reliability improvements.