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

Lead integrated marketing programs for a biotechnology company, including social media, email campaigns, industry events, online advertising, website updates, and technical content development. Partner with commercial leadership and sales to translate scientific information into clear messaging for specialized professional audiences, monitor advertising efficiency, and support lead handoffs.

Build and launch software products across the full stack, from initial concept through production. Develop conversational agent-style experiences, data models, and integrations with AI tooling. Partner with technical leadership and users to define product direction, deliver features across front-end and back-end systems, and ensure scalable, distributed, high-performance architecture. The role requires on-site work five days per week in San Francisco.

Founding member of an internal operations function supporting executive leadership. Responsibilities include leading recruiting, overseeing finances and budgets, driving strategic initiatives, launching operating processes, and coordinating cross-functional teams. The role requires autonomy, financial modeling, project leadership, startup experience, and in-person work in San Francisco.

Lead backend engineering for a software platform, designing scalable services, AI-driven workflows, media generation pipelines, and live data systems. Own architecture across services, improve reliability through testing and monitoring, collaborate with research and product teams, define coding standards, mentor engineers, and document technical decisions. The role is fully on-site in San Francisco.

Lead growth marketing for a software startup by driving inbound leads through content, paid campaigns, SEO, social channels, events, partnerships, and outreach. Develop repeatable distribution programs, test messaging and channels against sales pipeline impact, write marketing materials, and maintain high brand standards with designers and agencies. The role is hands-on, independent, fast-paced, and based onsite in San Francisco five days per week.

Lead software product deployment engagements from kickoff through delivery, build client relationships, refine automated workflows with founders, and feed client insights into product strategy. The role also supports sales and new business development. Candidates need commercial due diligence experience from a top-tier strategy consulting firm or private equity investing, including staffing or leading at least five diligence projects. The position is based onsite in San Francisco six days per week at an early-stage startup.

Build backend services, AI agent runtimes, machine learning infrastructure, vector search systems, data acquisition pipelines, model-hosting endpoints, quality measurement workflows, and internal platform tooling. The role also includes security assessments and vulnerability mapping. Candidates should be comfortable solving ambiguous problems independently, developing dataset and synthetic-data pipelines, and maintaining high standards for simple, dependable engineering.

Manage employment-based immigration caseloads from intake through filing, conduct client consultations, draft and submit petitions, and develop reusable legal processes. Advise founders and engineers, handle persuasive legal writing, collaborate with senior attorneys, and provide feedback on drafting and review tools. The role requires active U.S. bar membership, business immigration experience, and full-time on-site work in San Francisco or New York.

Principal Engineer responsible for owning a major software platform area, including architecture, production development, quality, and delivery. The role combines hands-on coding with technical mentorship, engineering leadership, executive and product collaboration, and oversight across multiple engineering groups. The engineer will promote AI-assisted development practices and contribute to runtime services, intelligent agents, integrations, and data infrastructure.

Build and own full-stack projects from concept through launch, including backend services, web interfaces, APIs, simulation environments, internal tools, and infrastructure. Collaborate with research, product, design, and external technical stakeholders. Write maintainable code, participate in reviews and design discussions, and improve system scalability, reliability, and data evaluation workflows.