# Senior Frontend Engineer

**Company:** [Tennr](https://hotfix.jobs/companies/tennr)
**Location:** New York, NY
**Role:** Frontend Engineering
**Salary:** $190k – $215k/yr
**Experience:** 5+ years
**Skills:** React, TypeScript, Front-End Development, Ui/Ux Engineering, Web Accessibility, Front-End Performance Optimization, Ai Prototyping Tools, User Research
**Posted:** 2026-08-18

> Senior frontend engineer responsible for building and improving Tennr’s flagship React application, with ownership of client architecture, accessibility, performance, and visual quality. Requires 5+ years of frontend, UI/UX, or full-stack experience with strong React and TypeScript expertise.

## Job Description

## Responsibilities
- Drive a world-class user experience for Tennr’s flagship application, improving efficiency, reliability, and usability.
- Establish application usability and accessibility standards in collaboration with UX Designers and UX Engineers.
- Drive client architecture decisions for a complex React application.
- Partner with design on user research processes to understand customer personas, including back-office administrators, referring healthcare providers, and patients.
- Translate user needs into effective product design.
- Own visual quality by executing pixel-perfect designs and resolving ambiguity with strong design judgment.
- Proactively drive projects from conception through completion.

## Requirements
- 5+ years of experience in UI/UX engineering, front-end web development, or full-stack development.
- Strong proficiency with React and TypeScript.
- Strong knowledge of front-end performance optimization and accessibility principles.
- Passion for design and user experience.
- Excellent problem-solving skills and clean coding practices.
- Experience using AI tools for prototyping and development.
- Outstanding communication skills and the ability to explain complex technical concepts to diverse audiences.
- Collaborative mindset and appreciation for diverse perspectives.

## Nice to Have
- Prior experience in a startup or fast-paced technology environment.

## Benefits
- Unlimited paid time off.
- 100% paid employee health benefit options.
- Employer-funded 401(k) match.
- Competitive parental leave.
- Free lunch and snacks.
- Office at 345 Hudson Street.
- Collaboration in the Hudson Square office four days per week.

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