Frontend Engineer Jobs in San Francisco, USA

Senior Frontend Engineer at Socure. Apply via Ashby.

<p> </p> <h3>About Vultron</h3> <p>Vultron is building an AI-native platform to help companies identify, qualify, and win government contracts. We’re creating a new category of software purpose-built for the public sector growth stack — one that connects intent, context, and action into a unified workflow.</p> <h3>About the Role</h3> <ul> <li>Department: Engineering</li> <li>Location: San Francisco, CA</li> <li>Type: Full-time, this is an onsite role (5 days a week)</li> </ul> <p>We’re looking for a <strong>Frontend Engineer </strong>to design and enhance the core platform that powers Vultron’s intelligence engine. Collaborate with cross-functional teams to revolutionize government contracting and procurement workflows. Address complex engineering issues in applying Large Language Models (LLMs) to real-world data. Work closely with customers to rapidly improve user experience, performance, and security. Play a vital role in expanding and mentoring our early engineering team.</p> <h3>What You’ll Do</h3> <p>As a key member of Vultron, you will:</p> <ul> <li>Develop and Refine Products: Build and enhance our core platform that powers Vultron.</li> <li>Make an Impact: Collaborate with our teams to revolutionize government contracting and procurement operations.</li> <li>Solve Unprecedented Challenges: Address complex issues in applying LLMs in government-related settings.</li> <li>Rapid Iteration: Iterate closely with customers to improve user experience, performance, and security.</li> <li>Grow With Us: Play a vital role in expanding our engineering team.</li> </ul> <h3>Required Qualifications</h3> <ul> <li>1-4 years of software engineering experience. We are open to recent college graduates candidates who demonstrate exceptional technical depth.</li> <li>Proficiency in Typescript, React, NextJS, and other web technologies.</li> <li>Proven track record in developing exceptional software, especially in enterprise.</li> <li>Prior experience in AI and large language models is a plus but not mandatory.</li> <li>Extreme care about the end user experience and take pride in building exceptional products.</li> <li>Demonstrated passion for start-ups or early-stage companies.</li> <li>UI/UX and product design experience is advantageous, particularly for front-end focused roles.</li> </ul> <h3>What We Offer</h3> <ul> <li>💰 Base salary range of $160,000-$200,000 depending on experience, offers equity</li> <li>🏥 Comprehensive medical, dental, and vision insurance</li> <li>💸 401(k) Retirement Plan to build retirement savings with pre-tax contributions</li> <li>🎓 $1,000 annu

Senior Frontend Engineer at Gigaml. Apply via Ashby.

Frontend Engineer at Safetykit. Apply via Ashby.

Senior Frontend Engineer at Doss. Apply via Ashby.

Frontend Engineer at Doss. Apply via Ashby.

Staff Frontend Engineer at Doss. Apply via Ashby.

Wanna join the adventure?   As a Frontend Engineer at Loft, you will work on a range of projects, including refining the UI of Cockpit, our satellite operations software, and empowering end-users with powerful satellite management capabilities. You’ll collaborate with peers on the Frontend Engineering team, as well as interface with the wider Software team.     

About Finix Finix is building the global operating system for fintech, starting with payments. From startups to publicly traded companies, Finix processes tens of billions of dollars annually both in-store and online. Finix was founded in 2015 and is headquartered in San Francisco.   To date Finix has raised over $200M, including a $75M Series C led by Acrew Capital and Lightspeed Venture Partners and backed by American Express Ventures, Bain Capital Ventures, Homebrew, Inspired Capital, Visa, and others As a Senior Frontend Engineer on our Frontend Engineering Team, you'll architect and build the core payment experiences that power thousands of businesses. You'll develop our comprehensive payments management dashboards and embeddable components that merchants integrate directly into their applications.   In this role, you'll drive the technical vision for customer-facing products from conception to production. You'll lead design and implementation decisions while ensuring our payment interfaces remain performant, secure, and intuitive as we scale. Our engineering team operates with high autonomy and ownership—each engineer makes meaningful contributions that directly impact customer success in our dynamic fintech environment.   Finix is looking for engineers who bring exceptional technical acumen, attention to detail, passion for growth, and an obsession with delivering an exceptional customer experience.  

<p><strong>About Us</strong></p> <p>At <a href="http://prenuvo.com/">Prenuvo</a>, we are on a mission to flip the paradigm from reactive “sick-care” to proactive health care. Our award-winning whole body scan is fast (under 1 hour), safe (MRI has no ionizing radiation), and non-invasive (no contrast). Our unique integrated stack of optimized hardware, software, and increasingly AI, coupled with the patient-centric experience across our domestic and global clinics, have allowed us to lead the change against “we caught it too late again".</p> <p>We're looking for a Senior Frontend Engineer to join our eCommerce team, focusing on optimizing user experience, reducing friction in booking flows, and driving growth through continuous experimentation. You will be a key contributor to our online booking platform—a critical, revenue-driving application that guides customers through scan selection, scheduling, and payment. If you have a startup mentality, a passion for data-driven decisions, and the technical depth to own features from concept to production, this is a high-impact role that directly influences conversion rates, customer satisfaction, and core business metrics.</p> <p><strong>This role does not provide visa sponsorship. Applicants must be legally authorized to work in the United States at the time of hire and must not require employer sponsorship for a work visa (current or future). </strong></p> <p>Help reshape the world through proactive healthcare while working with cutting-edge technology and high performing teams with deep expertise - join us to make a difference in people’s lives!</p> <p><strong>What You’ll Do</strong></p> <ul> <li><strong>Optimize the User Experience:</strong> Identify and eliminate friction points in the booking funnel, optimize page load performance, and ensure WCAG accessibility compliance across all flows.</li> <li><strong>Drive Experimentation & Growth:</strong> Design, implement, and analyze A/B tests using a platform like PostHog or DataDog. Build feature flag infrastructure for gradual rollouts and track conversion metrics at each stage of the funnel.</li> <li><strong>Own Frontend Architecture:</strong> Build highly responsive interfaces using a hook-first architecture (separating business logic from presentational components) and modern state patterns (optimistic updates, single-flight request patterns).</li> <li><strong>Ensure Reliability & Observability:</strong> Set up and maintain Datadog RUM dashboards, implement comprehensive error tracking, and debug production issues to maintain high system reliability.</li> <li><strong>Champion Testing & Quality:</strong> Write and maintain robust E2E tests (Playwright) for critica

Frontend Engineer (SF) at General medicine. Apply via Ashby.

Member of Technical Staff, Design & Frontend Engineer at Inkeep. Apply via Ashby.

Frontend Engineer at Factory. Apply via Ashby.

Senior Frontend Engineer - Growth at Airwallex. Apply via Ashby.

Senior Frontend Engineer, Expenses at Airwallex. Apply via Ashby.

Senior Frontend Engineer at Datacurve. Apply via Ashby.

Senior · Staff · Principal Frontend Engineer at Lai. Apply via Ashby.

Frontend Engineer at Assembledhq. Apply via Ashby.

Senior Frontend Engineer, Core at Scribe. Apply via Ashby.