Senior Frontend Engineer - Healthtech UX Lead

Decca Consulting LLC; Norwalk (CT); On-site; USD 120,000 - 180,000; Full time

Job summary

Decca Consulting LLC seeks a Senior Frontend Engineer to lead design and implementation of web and mobile experiences across Member and Advisor portals. You will collaborate with product, design, backend, and analytics teams to deliver fast, accessible, and reliable features.

You will own architecture, testing, deployments, and performance optimization, mentoring engineers and contributing to product roadmaps with a user-centric mindset.

Qualifications

• 5+ years building and operating production-grade web and mobile apps, ideally in consumer/healthcare.
• Expert-level proficiency in React/React Native, TypeScript, UI patterns, state management, and component design.
• Strong understanding of GraphQL, REST API integrations, caching, CDNs, and databases.
• Proven track record delivering user-focused products end-to-end.
• Deep experience with performance optimization, accessibility, responsive design, and cross-device support.
• Strong testing discipline with unit/integration testing: Jest, RTL, Cypress, Playwright.
• Experience with production systems operation including logging, monitoring, and alarms.

Responsibilities

• Build and launch high-quality web and mobile UIs for members and portals.
• Own end-to-end: requirements, architecture, implementation, testing, and monitoring.
• Implement responsive React-based experiences with TypeScript and API integrations.
• Collaborate with backend to design clean API contracts and maintain separation of concerns.
• Lead with a test-driven mindset and ensure automation coverage.
• Optimize performance, Lighthouse scores, and Core Web Vitals.
• Build reusable frontend components and infrastructure.
• Troubleshoot production issues and maintain monitoring dashboards.
• Mentor engineers and influence engineering culture and standards.
• Shape product experience with design reviews and roadmap input.

Skills

React/React Native

TypeScript

UI Architecture

Performance Optimization

Testing (Jest/Cypress/Playwright)

GraphQL/REST APIs

Cross-functional Collaboration

Accessibility & WCAG

Tools

GraphQL

REST APIs

CDNs

Databases

Jest/RTL/Cypress/Playwright

Job description

Decca Consulting LLC seeks a Senior Frontend Engineer to lead design and implementation of web and mobile experiences across Member and Advisor portals. You will collaborate with product, design, backend, and analytics teams to deliver fast, accessible, and reliable features.

You will own architecture, testing, deployments, and performance optimization, mentoring engineers and contributing to product roadmaps with a user-centric mindset.