Staff Software Engineer, Frontend (GenAI) at Klarity

Job Description

About Klarity:

Klarity (YC S18) partners with Fortune 500 companies like ServiceNow, JLL, and Moody’s and cutting-edge companies like OpenAI, DoorDash, Uber, and Stripe to deliver real AI outcomes.

Traditional Transformation playbooks take years, burn millions, and leave your team exhausted. It’s even worse with AI. 95% of pilots never make it past experimentation. Why? Because time kills transformation. Objectives shift, processes evolve, and momentum dies.

Klarity upgrades the script. Instead of betting everything on a massive "big bang" change, Klarity delivers kAIzen for the digital enterprise: continuous, compounding improvements that everyone participates in. Our Agentic Tiger Team: Analyst, Advisor, and Coach capture how work actually gets done today, uncovers hidden inefficiencies, and guides teams toward better processes in real time.

Transformation isn't dead, it just looks different now. Klarity makes it effortless, always-on, and outcome-driven.

At Klarity, you will thrive if:

Velocity: You’re seeking a culture of rapid iteration and constant change that turns into lasting impact.
Agency: You’re seeking a role where you can take initiative and embody ownership.
Care: You hold yourself to high standards, enjoy close collaboration with others who care deeply and hold themselves to equally high standards.
Energy: You bring drive and optimism to everything you do. You thrive on finding creative solutions to ambiguous problem statements.
Curiosity: You have a deep curiosity about technology. You enjoy tinkering with new AI tools and adding them to your workflow.

Preferred Qualifications:

Expertise in React, deep understanding of hooks and modern React patterns.
Expertise leveraging GenAI tools like Cursor, Claude Code, Replit, etc. to supercharge efforts.
Advanced JavaScript and TypeScript skills.
Proficient with REST APIs.
Strong UI/UX sensibility and adherence to best practices.
Startup mindset: tenacious, ambitious, dedicated, detail-oriented, efficient, and pragmatic.
Professional attitude: high code quality, clear communication, and respect for deadlines.

Benefits:

Equity in addition to competitive cash compensation
100% Employer-Paid Medical, Dental & Vision options!
Paid Parental Leave
$500 Annual Learning Fund
$100 Monthly Wellness Fund
401k via Betterment
Relocation support to San Francisco Bay Area (where applicable)
Office-related Perks:
- BART or Caltrain to the office?: Contribute pre-tax funds to a Parking & Transit account, and you will never be taxed for it!
- Lunchtime, Leveled Up: Enjoy curated local eats.
- Snack Central: Drinks and snacks for every craving - from healthy bites to Klarity team favorites.
- Onsite Gym Access: A state-of-the-art fitness center right downstairs, and it’s free!
- Safe & Secure Bike Room: Commute in and safely store your bike.

Klarity is an equal opportunity employer. Klarity provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, gender, national origin, sexual orientation, gender identity or expression, age, disability, genetic information, marital status or veteran status.

🎯 Who is this job for?

This role is ideal for a Staff Frontend Engineer with 7+ years of experience, expert in React, TypeScript, and modern JavaScript, with a strong grasp of UI/UX best practices and REST API integration. Candidates should thrive in fast-paced startup environments, and be fluent in using GenAI tools like Cursor, Claude, or Replit to enhance development. Best for those eager to lead frontend architecture on high-impact, GenAI-powered products in a collaborative, ownership-driven culture.

💬 Potential Interview Questions

What are React hooks, and how do they differ from class components?
Hooks are functions (e.g., useState, useEffect) that let you manage state and side effects in functional components, avoiding the need for class components and enabling cleaner, reusable logic.
How do you use GenAI tools like Cursor or Claude Code in your development workflow?
These tools assist with code generation, refactoring, debugging, documentation, and test creation—speeding up development while maintaining code quality.
Explain your approach to managing large-scale React applications.
Use component architecture, code splitting, lazy loading, state management (Context, Redux), hooks for side effects, modular styling, and atomic design patterns.
What are modern best practices for frontend performance optimization?
Lazy loading, tree shaking, code splitting, debouncing, memoization (React.memo, useMemo), image compression, CDN usage, and optimizing rendering paths.
How do you structure TypeScript types for a growing frontend codebase?
Use interfaces/types for props and states, centralized type definitions, discriminated unions for API responses, and enforce strict TypeScript settings.
What is the difference between controlled and uncontrolled components in React?
Controlled components rely on React state; uncontrolled ones use DOM references (useRef). Controlled is preferred for consistent state management.
How do you ensure UI/UX consistency across a React project?
Use a design system or component library (like Storybook), maintain a shared style guide, ensure accessibility (ARIA), and collaborate closely with designers.
What strategies do you use to debug complex frontend issues?
Use browser dev tools, log tracing, React DevTools, test-driven debugging, breakpoints, component isolation, and GenAI-assisted analysis.
What are your methods for consuming and managing REST APIs in a frontend app?
Use fetch or Axios, handle errors globally, create reusable API clients, type responses with TypeScript, and integrate caching (e.g., SWR, React Query).
How do you implement a high-standard code review process in a fast-paced team?
Enforce linting, testing, automated CI checks, concise PR descriptions, clear coding guidelines, mentorship through review comments, and async feedback cycles.

📋 Job Summary

Klarity is hiring a Staff Frontend Engineer (onsite in San Francisco, relocation supported) to build GenAI-powered enterprise tools used by Fortune 500 and top tech companies. You'll work with React, TypeScript, REST APIs, and AI tools like Claude and Cursor to deliver high-impact UI experiences. This role is ideal for senior engineers (7+ years) who thrive in fast-paced, high-ownership environments and have a strong design sense. Enjoy equity, full health coverage, wellness perks, and a mission-driven team transforming digital operations with real-world AI.

Staff Software Engineer, Frontend (GenAI)