Founding Frontend Engineer

We're building the post-training platform that makes AI deployments safe, transparent, and continuously improving by productising frontier LLM and interpretability research.At Parsed, we supercharge large language models with reinforcement learning, enabling them to adapt and improve continually in real-world use. Instead of static black boxes, our models...

About UsAt 3Y Health, we are building AI-driven software to empower healthcare providers and solve the overwhelming administrative complexity that consumes 40% of the industry's revenue. Our end-to-end platform unlocks opportunities for clinician entrepreneurs, enabling medical professionals to launch, run, and grow private practices. By supporting these...

About Location:San Francisco, CA (Onsite 5 days a week)Compensation:$100K–$160K salary + 0.1%–0.6% equityPump is on a mission to radically simplify AWS cost optimization for teams building in the cloud. We use group buying and AI to help startups save like big tech — often reducing AWS bills by ~60%, completely for free.As a Frontend Engineer,...

About Ezra Ezra is building the AI-powered recruiter of the future. Our voice-based platform conducts natural, personalized interviews at scale—so hiring teams can quickly surface the best candidates, without spending hours on phone screens. The product is live, early customers are using it, and we're backed by Andreessen Horowitz (a16z Speedrun), NEA,...

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 LLMsAs a Senior Frontend Engineer, you'll become part of a passionate, fast moving team dedicated to solving challenging technical problems, designing engaging gamification...

About You:You will be working on our frontend built with , TypeScript, and Tailwind. It's a complex product with interactive, realtime systems that need to be coordinated. You should be immediately productive coming into a codebase on this stack.You are skilled at frontend architecture and can also turn Figma designs into reliable production code.You have...

Caddie is hiring for a Founding Engineer Roleon behalf ofBlueJay. The job description below is provided directly by the Bluejay team.About BluejayBluejay is the end-to-end testing platform for conversational AI, with a strong focus on voice. We serve customers ranging from very large enterprises to the hottest startups and are backed by Y Combinator and...

What if your next role let you shape the visual foundationandbuild the interfaces powering AI that creates software experiences automatically?Our client — a hyper–talent-dense AI startup backed by Google, YC, and OpenAI leaders — is hiring a Founding Designer-Who-Codes (San Francisco, In-Person).They're building Self-Improving Software: AI that...

In this role, you will have substantial ownership over the architecture of the frontend codebase that supports all of our product work. You will drive the evolution of our frontend abstractions, identifying and triaging opportunities to restructure or improve them, making technology choices to support new capabilities, and scoping significant independent...

Front End Software Engineer | $160k–$210k| San Francisco, CA (On Site)I'm partnering with a high-growth SaaS client in the San Francisco Bay Area that's building a next-generation platform designed to help companies streamline operations, improve workflows, and deliver smarter, data-driven decisions. This is a product-focused growth role. They're looking...