Top Tech Jobs & Startup Jobs in San Francisco Bay Area, CA

Own and ship polished, high-performance frontend interfaces for a complex web app. Prototype, make product/design decisions, implement UI, and collaborate on full-stack features. Optimize state management, caching, and UX details, and participate in a paid in-person work trial.

Design end-to-end, multi-platform experiences for AI agent creation and collaboration. Develop interaction patterns, design systems, prototypes using real AI models, and motion/micro-interactions. Partner with engineering, conduct user research, validate designs with prototypes, and influence product strategy to make complex AI capabilities feel intuitive and delightful.

Seeking former founders or product leaders to join full-time in-person at the San Francisco Presidio office. Ideal candidates raised >$5M, reached $500k+ ARR, or were the main person shipping a standout product. Role is flexible across engineering, product, or growth; scope will be built around strengths. Candidates must be Bay Area–based or willing to relocate, have US work authorization (O-1/J-1 sponsorship possible for exceptional candidates), and be able to propose what they'd own in the first 90 days.

Senior individual contributor who provides architectural leadership and ships production code. Design scalable, multi-tenant agent/LLM systems, define reliability/observability (SLOs, tracing, incident response), review major PRs, and implement high-impact infrastructure decisions for a small engineering team.

Early-stage in-person Product Manager for an AI agent product. Prototype quickly, run frequent user sessions, iterate weekly, own specs to launch, draft launch comms, and support customers in-office. Collaborate with design and engineering in one-week sprints to ship high-leverage features.

Early-stage AI startup seeking an ex-YC founder to join a 15-person team in San Francisco full-time. Role is flexible (engineering, product, or growth), requires hands-on startup experience, willingness to wear multiple hats, strong enthusiasm for AI agents, and commitment to work from the Presidio office five days a week. US work authorization required; O-1 or J-1 sponsorship may be available for exceptional candidates.

Lead consumer growth from thousands to millions: own social virality, programmatic SEO, paid channels, content, partnerships, and outreach; build viral loops; partner with engineering; and hire and manage a growth team as channels scale.

Design pixel-perfect product screens and maintain visual fidelity across web, mobile, and email. Build and maintain brand guidelines and outward-facing assets (website, social, decks). Collaborate with product and engineering to deliver production-ready Figma files and iterate quickly.

Build and operate backend and full-stack features for an early-stage product: sandboxed agent runtimes, real-time streaming, task queues, model routing, deployments (Cloudflare Workers + Fly.io), and production observability. Work closely with the CTO, be on-call, and ship infrastructure and product features that scale to large concurrent usage.