Senior Software Engineer - Frontend

Posted Yesterday
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San Mateo, CA
In-Office
160K-190K Annually
Senior level
eCommerce • Retail • Software • Sports
Tech-First Sports Licensed E-Commerce Cutting-Edge Company
The Role
Design, build, and optimize scalable frontend applications, mentor junior engineers, and drive technical decisions while collaborating with product and design teams.
Summary Generated by Built In

We are looking for a Senior Frontend Engineer to join our Pricing and Promo Pod. You will build and scale intuitive, high performance, and accessible user experiences that power our products. You will partner closely with Product, Design, and Backend Engineering to deliver solutions that delight users and move our business forward.

This role requires deep expertise in modern frontend frameworks, strong problem-solving skills, and the ability to mentor other engineers. You’ll play a critical part in shaping both the technical architecture and the engineering culture.

What You’ll Do:

  • Design, build, and optimize scalable frontend applications using modern JavaScript/TypeScript frameworks (React or similar).
  • Collaborate with designers and product managers to translate requirements and wireframes into high-quality, performant code.
  • Ensure accessibility, usability, and responsiveness across devices and browsers.
  • Champion best practices in code quality, testing, performance, and CI/CD automation.
  • Mentor and support junior and mid-level engineers through code reviews, pair programming, and knowledge sharing.
  • Partner with backend teams to define APIs and data contracts.
  • Drive technical decisions around architecture, tooling, and frontend standards.
  • Monitor and improve application performance, scalability, and reliability.

What We’re Looking For:

  • 5+ years of professional frontend development experience.
  • Strong proficiency in JavaScript, TypeScript, HTML5, CSS3, and modern frameworks (React preferred).
  • Hands-on experience with state management (Redux, MobX, Recoil, or similar).
  • Solid understanding of REST APIs, GraphQL, and modern web application architecture.
  • Experience with testing frameworks (Jest, React Testing Library, Cypress, etc.).
  • Familiarity with build systems and tooling (Webpack, Vite, Babel, etc.).
  • Knowledge of web performance optimization and accessibility standards (WCAG).
  • Excellent communication skills and a collaborative mindset.
  • Experience in mentoring or leading engineers is a plus.

At Fanatics, we value transparency and honesty. If you don’t meet every single requirement, that’s okay – we still want to hear from you! We believe in the power of diverse experiences and talents. If you’re excited about the role and confident that you can contribute, don’t hesitate to apply. We’re genuinely interested in how your unique skills and perspective can help us build something amazing together.

The salary range for this position is $160,000 - $190,000 which represents base pay only and does not include short-term or long-term incentive compensation. When determining base pay, as part of a final compensation package, we consider several factors such as location, experience, qualifications, and training.

Where You’ll Work and What’s required:

  • Hybrid work environment flexibility, with Tuesdays, Wednesdays, and Thursdays in office; Mondays and Fridays days remote.
  • Fast-paced team environment with exposure to multiple aspects of the Fanatics Commerce business.
  • Ability to travel up to 10% of the time for partner meetings, events, and other related activities.

What’s in it For You:

  • Culture: Join a team where you're surrounded by top-tier talent, driven by a shared passion to relentlessly enhance the fan experience. With a focus on collaboration, support, and continuous development, you’ll be empowered to help shape a culture that celebrates both individual and team successes. 
  • Benefits: We provide a wide range of health, financial, legal, and development assistance, including wellness programs with fitness and weight management partners, paid maternity paternity leave, and infertility treatment. Additionally, we offer flexible time off to help you recharge, along with a competitive 401k plan to support your financial future. At Fanatics, we’re dedicated to supporting you in all aspects of work and life.
About Us
Fanatics is building a leading global digital sports platform. We ignite the passions of global sports fans and maximize the presence and reach for our hundreds of sports partners globally by offering products and services across Fanatics Commerce, Fanatics Collectibles, and Fanatics Betting & Gaming, allowing sports fans to Buy, Collect, and Bet. Through the Fanatics platform, sports fans can buy licensed fan gear, jerseys, lifestyle and streetwear products, headwear, and hardgoods; collect physical and digital trading cards, sports memorabilia, and other digital assets; and bet as the company builds its Sportsbook and iGaming platform. Fanatics has an established database of over 100 million global sports fans; a global partner network with approximately 900 sports properties, including major national and international professional sports leagues, players associations, teams, colleges, college conferences and retail partners, 2,500 athletes and celebrities, and 200 exclusive athletes; and over 2,000 retail locations, including its Lids retail stores. Our more than 22,000 employees are committed to relentlessly enhancing the fan experience and delighting sports fans globally. 
About the TeamFanatics Commerce is a leading designer, manufacturer, and seller of licensed fan gear, jerseys, lifestyle and streetwear products, headwear, and hardgoods. It operates a vertically-integrated platform of digital and physical capabilities for leading sports leagues, teams, colleges, and associations globally – as well as its flagship site, www.fanatics.com.

Fanatics Commerce has a broad range of online, sports venue, and vertical apparel partnerships worldwide, including comprehensive partnerships with leading leagues, teams, colleges, and sports organizations across the world—including the NFL, NBA, MLB, NHL, MLS, Formula 1, and Australian Football League (AFL); the Dallas Cowboys, Golden State Warriors, Paris Saint-Germain, Manchester United, Chelsea FC, and Tokyo Giants; the University of Notre Dame, University of Alabama, and University of Texas; the International Olympic Committee (IOC), England Rugby, and the Union of European Football Associations (UEFA).

At Fanatics Commerce, we infuse our BOLD Leadership Principles in everything we do:
· Build Championship Teams
· Obsessed with Fans
· Limitless Entrepreneurial Spirit
· Determined and Relentless Mindset

Top Skills

Babel
CSS3
Cypress
GraphQL
HTML5
JavaScript
Jest
Mobx
React
React Testing Library
Redux
Typescript
Vite
Webpack
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The Company
Boulder, CO
7,500 Employees
Year Founded: 1995

What We Do

Transforming the licensed sports industry through an innovative vertical e-commerce model that allows Fanatics to quickly design, manufacture and distribute high-quality fan gear across retail channels, better serving the real-time expectations of leagues, teams, fans and retailers in today’s mobile-first, on-demand culture.

Why Work With Us

You don't have to love sports to work here (though we love sports fanatics as well!). Fanatics is an industry leading, multi-billion dollar, international, privately held company with a casual, lofty space in the heart of Downtown Boulder. We have the advantages of a startup, without the pitfalls.

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