# Senior Javascript Developer (React.js)

**Company:** [Stadium](http://jobs.workable.com/companies/27KWF2hgrrgt1NyPV5r6ZN.md)
**Location:** Remote
**Workplace:** remote
**Department:** Engineering

[Apply for this job](http://jobs.workable.com/view/476ed2eb-30bc-48fa-a4b3-d09b55dc7689)

## Description

As a **Senior Frontend Developer (React.js / Next.js)**, you will:  

-   Architect and build robust, scalable web applications using React.js and Next.js that make our platform easy and enjoyable to use.
-   Own significant features end to end — from technical design through rollout — and set the standards others build against.
-   Drive frontend performance: server-side rendering, static generation, bundle size, Core Web Vitals, and caching strategy.
-   Collaborate with cross-functional teams to design and implement new features that enhance user engagement.
-   Raise the quality bar through code reviews, refactoring, testing practices, and pragmatic technical debt reduction.
-   Mentor mid-level and junior engineers, and help grow the team’s overall frontend capability.
-   Stay ahead of emerging technologies and best practices in web development to keep our applications cutting-edge.

## Requirements

**Primary Requirements**  

-   5+ years of professional experience building production web applications with JavaScript.
-   5+ years of professional experience with React.js.
-   Hands-on production experience with Next.js, including server-side rendering, static generation, and routing.
-   Deep understanding of React concepts: functional components, hooks, state management, context, memoization, rendering behavior, and lifecycle.
-   Strong command of ES6+, TypeScript, HTML, CSS, and a state management library (Redux or similar).
-   Proven experience designing and integrating REST-based third-party APIs.
-   Demonstrated ownership of frontend performance optimization, debugging, and browser testing.
-   Experience with modern build tooling (Webpack, Babel, or equivalent) and frontend deployment pipelines.
-   Track record of leading code reviews, refactoring legacy code, and improving engineering standards.
-   Strong problem-solving skills with the ability to analyze, clarify, and scope requirements independently.
-   High attention to detail and strong visualization of UI/UX.

**Preferred Requirements**  

-   Experience using Google Lighthouse and PageSpeed Insights to drive measurable frontend performance gains.
-   Knowledge of SEO best practices for server-rendered web applications.
-   Experience with component libraries, design systems, and monorepo tooling.
-   Familiarity with automated testing (Jest, React Testing Library, Playwright/Cypress).
-   Experience with feature flagging and progressive rollout practices.
-   Experience working with asynchronous or distributed teams.
-   Prior experience mentoring developers and leading technical initiatives.

**Soft Skills & Mindset**  

-   Clear communication and the confidence to challenge and be challenged.
-   Curious, proactive, and generous with knowledge.
-   Ability to work in a fast-paced, collaborative product environment.
-   Strong desire to build real products that solve real problems.

## Benefits

At Stadium, your input matters, and we believe in creating a culture where innovation is encouraged. Join us in crafting the future of group gifting and recognition. Your adventure starts here!  

-   Competitive salary based on skill set.
-   Fully remote role - work with talented teammates across the globe.
-   Flexible working hours and autonomy over your schedule.
-   5-day work week for better work-life balance.
-   Team retreats and offsites to connect and recharge.
-   Meal vouchers and employee benefits (health insurance) support.
-   Internal learning tracks to grow into other areas of development.
-   Plenty of company swag and additional perks.