Senior Front End Engineer

HRB; San Francisco (CA); On-site; USD 140,000 - 200,000; Full time

Job summary

HRB in San Francisco, CA is seeking a Senior Frontend Engineer to design and build scalable UI for our gamified developer platform. You’ll work with product, design, and backend teams to craft engaging coding challenges and performant interfaces.

You’ll own frontend architecture, champion best practices, and mentor peers while shipping delightful user experiences driven by data.

Qualifications

• 3+ years building scalable frontend apps with React and TypeScript.
• Strong styling skills for responsive, attractive UIs (Tailwind CSS).
• Solid understanding of data fetching, state management, and GraphQL API integration.
• Ability to architect maintainable, modular frontend codebases and establish best practices.
• Experience building reusable component libraries and frontend design systems.
• Familiarity with frontend testing frameworks and best practices (Vitest, RTL, MSW).
• Passion for delightful UI/UX and attention to detail.
• Proactive, data-driven mindset and fast iteration.

Responsibilities

• Design and implement intuitive, attractive UIs for gamified developer experiences.
• Collaborate with product managers, designers, and backend engineers on seamless experiences.
• Architect scalable frontend solutions ensuring maintainability, performance, and reliability as the platform grows.
• Drive frontend best practices, code quality, and mentorship within the team.
• Continuously experiment and optimize UX based on data and user feedback.

Skills

React

TypeScript

UI/UX design

GraphQL

Frontend architecture

Component libraries

Frontend testing

Data-driven UX

Tools

Tailwind CSS

Job description

We’re building a gamified developer platform empowering tens of thousands of coders to compete in exciting software engineering challenges – all while pushing the frontier of LLMs!
As a Senior Frontend Engineer, you'll become part of a passionate, fast moving team dedicated to solving challenging technical problems, designing engaging gamification experiences, and shaping the foundations to support the collective effort of developers worldwide.

What You’ll Do

• Design and implement intuitive, attractive, and engaging user interfaces that captivate developers
• Collaborate closely with product managers, designers, and backend engineers to build seamless gamified experiences and interactive coding challenges
• Architect scalable frontend solutions, ensuring maintainability, performance, and reliability as our platform rapidly grows
• Drive frontend best practices, code quality, and mentorship within the engineering team
• Continuously experiment, iterate, and optimize user experiences based on data-driven insights and user feedback

Senior Frontend Engineer

Location: San Francisco, CA Position Type: Full-Time, In-Person

What You Have

• 3+ years of experience building scalable, performant frontend applications using React and TypeScript
• Strong proficiency in styling responsive, attractive user interfaces with Tailwind CSS
• Solid understanding of data fetching, state management, and API integration using GraphQL
• Proven ability to architect maintainable, modular frontend codebases and establish best practices
• Experience building and maintaining reusable component libraries and frontend design systems
• Familiarity with frontend testing frameworks and best practices (e.g., Vitest, React Testing Library, MSW)
• Passion for crafting delightful user experiences and attention to detail in UI/UX design
• A proactive mindset, iterating quickly based on user feedback and data-driven insights

Nice to Haves

• Experience with Relay for efficient GraphQL data management and client-side caching
• Familiarity with frontend code generation tools and workflows (e.g., Plop)
• Knowledge of modern CI/CD practices, including automated testing, linting, and deployment pipelines
• Interest in developer tooling and improving engineering productivity