Senior User Interface Engineer

Senior Full Stack - User Interface Engineer

Primary Language must be: JavaScript/TypeScript, Node.js, React)

NO SPONSORSHIP FOR THIS POSITION

About our Client

Our client is building the compliant infrastructure layer for longevity and wellness medicine, they are experiencing explosive but controller growth. Helping the wellness business launch and scale programs around preventative health, longevity medicine, labs, supplements, and medical/monitored weight loss. Major room for advancement!

Role Overview

Our client is hiring a Senior Software Engineer to own the front-end engineering capability. You will be the primary onshore technical resource responsible for translating UX design into a consistent, high-quality user experience across our application suite.

This is a hands-on role. You will build and own the design system and component library, implement UI from wireframes and UX specifications, and set the front-end standards the offshore development team executes against. You will also handle backend development utilizing Node.js but most of the work will be in the front end. Initially or temporarily there will be about 20% production support.

Responsibilities

Front-End Engineering

• Own and build the design system and shared component library across all portals
• Implement UI from wireframes and work with UX specifications with precision and consistency
• Define front-end standards, patterns, and code quality expectations for the offshore team
• Ensure visual and functional consistency across all four portals
• Collaborate with a contracted UX Specialist during an initial engagement to translate journey maps and design frameworks into implementable specifications

Full-Stack Contribution

• Build and maintain Node.js back-end services as needed to support front-end features
• Collaborate with the offshore architecture and development team on API design and integration
• Participate in code reviews and contribute to engineering quality standards

AI-Native Development

• Leverage AI tooling (Cursor, Claude, Copilot, or equivalent) as a core part of your development workflow
• Contribute to the team’s adoption of agentic AI capabilities within the product and development process
• Stay current with emerging AI engineering tools and evaluate their applicability

Required Qualifications

• 5 years of professional software engineering experience as a UI Developer
• Strong proficiency in React and modern JavaScript/TypeScript
• Solid Node.js back-end experience
• Main development language must be TypeScript/JavaScript, strong in React and node.js
• Experience building and maintaining design systems or component libraries
• Demonstrated ability to implement high-quality UI from wireframes and design specifications
• AWS deployment and infrastructure experience
• Active use of AI coding tools in daily development workflow

Preferred Qualifications

• Experience in a healthcare, compliance, or regulated industry environment
• Familiarity with agentic AI frameworks and orchestration
• Experience with payments infrastructure (e.g., Stripe)
• Initial background in production support or on-call engineering
• Experience in a startup or high-growth environment with shared ownership across functions

What We Offer

• Competitive compensation at Dallas market rate
• Hybrid work model — Plano, TX
• High-ownership role with direct impact on product quality and direction
• Opportunity to shape the engineering culture and front-end practice at a fast-growing health tech company