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# Frontend Engineer

- **Company:** Newfold Digital
- **Location:** United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Artificial Intelligence, Component-Based Software Engineering, HTML5, Cascading Style Sheets (CSS), Software as a Service, Code Generation, Code Review, Continuous Delivery, Customer Data Management, Software Debugging, Next.js, TypeScript, Web Applications, ReactJS, Large Language Models, Cypress (Programming Language), React Redux, Restful APIs, Es2015
- **Published:** September 16, 2026
- **Apply:** https://www.builtincolorado.com/auth/login?destination=/job/senior-frontend-engineer/11196824

## About the Role

* 5+ years building and shipping modern, production-grade web applications at scale

 * Deep expertise in React, Redux/modern state management, and TypeScript, with strong JavaScript (ES6+), HTML5, and CSS3 fundamentals

 * AI-augmented delivery: you use AI across the delivery lifecycle, not just code generation, and can say which models suit which problems and where you don't use them. You review AI-generated code knowing its failure modes, and you have set the guardrails others work inside - review expectations for generated code, provenance and licensing checks, and clear boundaries for what customer data enters a prompt and what a security or compliance review will ask for.

 * Experience integrating REST APIs and working within microservices-based architectures

 * Comfortable with testing frameworks (Jest/Cypress) and building or maintaining component libraries and design systems

 * Track record of owning technical outcomes end-to-end in ambiguous, fast-moving environments where speed and craft both matter

 * Experience operating in a high-scale SaaS or consumer platform environment

 * Bonus: Next.js experience and prior work integrating LLM-powered or AI-driven product features

## Description

* Architect and build high-performance, production-grade UI in React, Redux (or similar state management), and TypeScript

 * Use AI across the delivery lifecycle, not just code generation, and set the guardrails the team works inside: how generated code gets reviewed, how provenance and licensing are checked, and what customer data may enter a prompt

 * Design and build front-end interfaces that integrate AI-powered features, such as chat, content generation, and smart recommendations

 * Own the performance, scalability, and reliability of high-traffic, customer-facing applications, from bundle size to render performance

 * Partner closely with product, design, and backend engineers to take features from concept to production quickly, without sacrificing quality

 * Set and enforce frontend engineering standards: component reuse, design-system consistency, testing coverage, and code review rigor across both squads

 * Mentor mid-level and junior engineers on architecture decisions, debugging technique, and modern React patterns

 * Drive continuous delivery practices, shipping iteratively against real user feedback instead of large, infrequent releases