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Front End Developer Startup Jobs in California (NOW HIRING)

Tacit

Frontend Product Engineer

San Francisco, CA · On-site

$160K - $210K/yr

About Tacit We are an early-stage, deep tech startup based in San Francisco, developing innovative ... About the role We are looking for a frontend product engineer to turn early ideas, prototypes, and ...

Ventrilo.ai

Frontend Engineer

Menlo Park, CA · On-site

... Frontend Software Engineer to enhance user experience. The role involves designing intuitive ... startup's full journey -- influencing our growth from the ground up. • Work on fun and ...

Halliday

Senior Frontend Engineer

San Francisco, CA · On-site

$144K - $198K/yr

... and developer tools. • Ship Developer Tools: Contribute to Halliday's public SDKs and APIs ... thrive in a fast-paced startup environment. • Based in or willing to relocate to the San ...

Zūm

Staff Front End Engineer

Redwood City, CA · On-site +1

Who You Are: We're hiring our first HQ-based front end engineer who will lead front end technical ... Startup background (preferred; a plus, though not a strict requirement) * Experience with mobile ...

Jobless

Staff Front End Engineer

Redwood City, CA · On-site

Who You Are: We're hiring our first HQ-based front end engineer who will lead front end technical ... Startup background (preferred; a plus, though not a strict requirement) * Experience with mobile ...

Zūm

CA

Who You Are: We're hiring our first HQ-based front end engineer who will lead front end technical ... Startup background (preferred; a plus, though not a strict requirement) * Experience with mobile ...

Serval Inc

Software Engineer, Frontend

San Francisco, CA · On-site

$200K - $325K/yr

Role Overview As a Senior Frontend Engineer at Serval, you'll play a pivotal role in shaping the ... Early-stage experience at a startup. * Experience building applied AI products. What We Offer

Serval

Software Engineer, Frontend

San Francisco, CA · On-site

Role Overview As a Senior Frontend Engineer at Serval, you'll play a pivotal role in shaping the ... Early-stage experience at a startup. * Experience building applied AI products. What We Offer

Kikoff

Senior Frontend Engineer

San Francisco, CA · On-site

$144K - $198K/yr

The Role: We're looking for a Senior Frontend Engineer to help shape the future of our flagship ... Desire to form strong professional bonds with startup-forward coworkers

Kikoff

Senior Frontend Engineer

San Francisco, CA

$144K - $198K/yr

The Role: We're looking for a Senior Frontend Engineer to help shape the future of our flagship ... Desire to form strong professional bonds with startup-forward coworkers

Collate

Frontend Software Engineer

San Francisco, CA · On-site

About the Role We're looking for a Frontend Software Engineer to define how people experience ... Motivation to work in an early-stage startup where your contributions directly shape both product ...

Collate

Frontend Software Engineer

San Francisco, CA · On-site

About the Role We're looking for a Frontend Software Engineer to define how people experience ... Motivation to work in an early-stage startup where your contributions directly shape both product ...

Ersilia

Staff AI Frontend Engineer

San Francisco, CA · On-site

AI-native developer. You wield Cursor, Claude Code, v0.dev, Lovable, and comparable tools as ... real startup. * On the bleeding edge of AI tooling. You can articulate what changed in your stack ...

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All JobsFront End Developer Startup JobsFront End Developer Startup Jobs in California

Front End Developer Startup information

See California salary details

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$109K

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How much do front end developer startup jobs pay per year?

As of Sep 14, 2026, the average yearly pay for front end developer startup in California is $108,967.00, according to ZipRecruiter salary data. Most workers in this role earn between $102,600.00 and $119,400.00 per year, depending on experience, location, and employer.

What is a front end developer startup?

A Front End Developer Startup job involves building and optimizing the user interface of a web or mobile application in a fast-paced startup environment. Responsibilities include coding in HTML, CSS, and JavaScript, working with frameworks like React or Vue.js, and collaborating with designers and back-end developers. Startups often require developers to be flexible, take ownership of features, and work on rapid iterations based on user feedback. This role typically demands both technical expertise and creative problem-solving to enhance user experience.

What are the key skills and qualifications needed to thrive as a front end developer startup?

To thrive as a Front End Developer Startup, you need strong skills in HTML, CSS, JavaScript, and modern frameworks like React or Vue, often backed by a relevant degree or proven portfolio. Familiarity with version control systems like Git, as well as build tools and APIs, is essential, while certifications in web development can be beneficial. Adaptability, proactive problem-solving, and the ability to communicate effectively within a fast-paced, collaborative environment are key soft skills. These skills and qualities enable you to build responsive, user-focused interfaces and rapidly iterate while aligning with evolving startup needs.

What are the unique challenges a front end developer faces in a startup environment compared to larger companies?

Working as a Front End Developer in a startup often means tackling a wider variety of tasks, ranging from UI implementation and rapid prototyping to troubleshooting issues across the stack. You may have to adapt quickly to shifting priorities, work with minimal supervision, and frequently collaborate with designers, product managers, and sometimes even directly with back end developers or founders. The pace is fast, so flexibility and a willingness to learn on the fly are crucial. On the upside, this environment provides substantial opportunities to broaden your skill set, take ownership of features, and make a visible impact on the product’s direction.

What are the most commonly searched types of Front End Developer Startup jobs in California?

The most popular types of Front End Developer Startup jobs in California are:

What are popular job titles related to Front End Developer Startup jobs in California?

For Front End Developer Startup jobs in California, the most frequently searched job titles are:

What job categories do people searching Front End Developer Startup jobs in California look for?

The top searched job categories for Front End Developer Startup jobs in California are:

What cities in California are hiring for Front End Developer Startup jobs?

Cities in California with the most Front End Developer Startup job openings:

Front End Developer Startup jobs near you
Infographic showing various Front End Developer Startup job openings in California as of September 2026, with employment types broken down into 1% As Needed, 78% Full Time, 18% Part Time, 1% Temporary, and 2% Contract. Highlights an 87% Physical, 3% Hybrid, and 10% Remote job distribution, with an average salary of $108,967 per year, or $52.4 per hour.

Frontend Product Engineer

San Francisco, CA • On-site

Tacit
See more jobs at Tacitexternal

$160K - $210K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 26 days ago

Key responsibilities

  • Build polished user interfaces in React and TypeScript based on product ideas, prototypes, and design explorations.

  • Prototype new product concepts, gather feedback, and iterate to improve user experience and product intuitiveness.

  • Establish frontend patterns, component systems, and interaction standards to ensure quality and rapid development.

Job description

About Tacit
We are an early-stage, deep tech startup based in San Francisco, developing innovative hardware that rethinks human-computer interaction. We are backed by General Catalyst, Khosla Ventures, and Greylock Partners, with a founding team from Stanford, BrainGate, Oculus, and Tesla. While we can't reveal too much just yet, our team is tackling cutting-edge engineering challenges to bring revolutionary products to life.
About the role
We are looking for a frontend product engineer to turn early ideas, prototypes, and design explorations into magical user-facing experiences. This is our first dedicated frontend hire: the interfaces you build are how people will actually experience silent speech.
This role sits at the intersection of frontend engineering, product design, UX, and rapid product iteration. You'll build polished interfaces in React, work through design and interaction details, prototype new product concepts, gather feedback from users, and refine experiences until they feel intuitive, beautiful, and accessible.
You should be the kind of engineer who cares deeply about how software feels. You notice when a flow has one click too many. You have strong opinions about interaction design, visual hierarchy, motion, responsiveness, and the small details that make a product feel crafted. You can work from a rough whiteboard sketch, or a Figma file, and turn product intuition into code. You know who Engelbart, Kay, Weiser, and Rams are, and you understand why their work matters.
What you'll do
  • Work deeply in React and modern TypeScript to create fast, reliable, expressive interfaces for novel HCI workflows.
  • Translate intuitive product ideas into clear interaction models, UX flows, and high-quality UI implementations.
  • Prototype new product concepts quickly, test them with in-house users and external participants, and iterate based on what feels useful, delightful, and intuitive.
  • Improve onboarding, setup flows, data collection experiences, session flows, and other high-friction parts of the user journey.
  • Use qualitative feedback, instrumentation, funnels, and lightweight experiments to understand user behavior and make better product decisions.
  • Help establish frontend patterns, component systems, interaction standards, and implementation practices that let the team move quickly without sacrificing quality.
  • Sweat the details: layout, responsiveness, empty states, error states, loading states, accessibility, performance, motion, copy, and the overall feel of the product.
Requirements
  • Deep proficiency with React and modern TypeScript.
  • Strong frontend engineering fundamentals, including component architecture, state management, performance, browser behavior, styling systems, and testing.
  • A portfolio or track record of shipping polished, user-facing software that real people have used.
  • Excellent product sense: you can reason from user goals, identify friction, simplify workflows, and make pragmatic tradeoffs.
  • Strong UX instincts and visual taste, with the ability to work through multiple design iterations rather than stopping at the first functional version.
  • Ability to collaborate closely with technical and non-technical teammates, communicate design/engineering tradeoffs clearly, and take ownership of outcomes.
  • Independent work ethic, flexibility, impact driven, and resourcefulness.
Strong candidates may have
  • A creative, artistic, design, or visual background, whether formal or self-taught.
  • Experience building design systems, component libraries, interactive prototypes, or highly polished consumer/product interfaces.
  • Experience with animation, motion design, canvas/WebGL, graphics, real-time interfaces, or other interaction-heavy frontend work.
  • Experience designing product experiments, instrumentation, funnels, dashboards, or feedback loops to guide iteration.
  • Experience working on products involving hardware, sensors, real-time data, ML-driven experiences, or novel human-computer interaction.
  • Familiarity with native frameworks such as iOS, macOS, Swift, SwiftUI, UIKit, AppKit, or similar.
  • Comfort working lightly across the stack when needed, especially to unblock product prototypes or connect frontend experiences to APIs.
  • Curiosity about the history of input, wearable, and calm computing
  • 5+ years of software engineering experience and a bachelor's degree or higher in a relevant field, or equivalent practical experience.
Compensation Range
$160,000 - $210,000/year plus equity
Benefits
  • Competitive equity package
  • Comprehensive medical, dental, and vision insurance
  • Company size: 30-50 people
  • Unlimited PTO
  • Visa sponsorship
  • 4% 401k matching

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