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

Design and build production AI agent systems that orchestrate large language models, tools, and deterministic code. Develop evaluation suites, improve model behavior, diagnose production failures, and create feedback systems for training and evaluation. Extend browser and computer-use agents with strong safety, security, and auditability. The role requires end-to-end ownership, robust systems design, and on-site collaboration five days per week.

Design, train, deploy, and operate machine learning systems for real-time suspicious-activity detection. Own model development, data pipelines, serving, infrastructure, scalability, and production measurement. Collaborate with technical leadership and customers to identify threats and improve detection signals. Establish engineering standards, ensure correctness, and deliver reliable systems in a high-autonomy, fast-moving team.

Serves as a strategic partner to the CEO, leading cross-functional initiatives, launching growth opportunities, building management and reporting routines, and removing obstacles for business unit leaders. Requires strong analytical, financial modeling, executive communication, and AI automation skills. The role is based onsite in San Francisco and involves 10–30% travel, with potential progression to business unit leadership.

Own security across application, cloud, and network layers. Conduct threat assessments and design reviews, build product protections, author security documentation, coordinate testing and compliance, manage customer security reviews, and lead incident preparedness and response. Maintain cloud access audits, automate security checks in deployment pipelines, and establish policies for secrets, outbound data, and device management. The role requires hands-on security engineering, coding, risk communication, and independent work in an on-site startup environment.

Develop and operate server-side services for a multi-tenant software platform while contributing to front-end development. Manage data models, third-party integrations, asynchronous workflows, monitoring, and distributed systems. Own features from design through production improvement, troubleshoot customer environments, and translate customer requests into scalable functionality while influencing technical direction within a small engineering team.

Own the full B2B SaaS sales cycle for healthcare technology accounts, from prospecting through contract close. Sell consultatively to CFOs, COOs, and operations leaders at multi-site organizations; conduct discovery, deliver demos, build business cases, manage evaluations, and negotiate contracts. Generate self-sourced pipeline through conferences and events, maintain disciplined CRM forecasting, and collaborate with leadership on messaging, pricing, packaging, and objections. Frequent travel to events and customer sites is required.

Serve as the first design hire, owning end-to-end desktop and mobile product experiences. Design and ship approximately three features weekly, follow platform-specific conventions, review the live product, identify improvements, interview users, and translate feedback into realistic usage scenarios. Partner closely with founders to establish overall design direction in a fast-paced, small-team environment.

Manage client accounts and external partner relationships, lead product demos and straightforward sales, resolve issues, identify account expansion opportunities, and build scalable operational systems and playbooks. This high-ownership role requires strong communication, organization, resourcefulness, and comfort with ambiguity in an on-site startup environment.

Conduct outbound cold calls, email sequences, and follow-up outreach to prospective healthcare technology customers. Convert leads generated through automated processes, contribute as an early sales hire, and expand responsibilities toward a senior sales role. The position requires strong communication, motivation, comfort with cold calling, and full-time in-office work in San Francisco.

Own the design and delivery of user-facing web features using React and TypeScript. Architect scalable frontend systems, reusable components, state management, API integrations, and performance improvements. Build real-time, streaming, dashboard, and conversational interfaces while partnering with product and backend teams. Use AI coding tools to prototype and ship features rapidly, improve engineering workflows, and contribute strong design judgment. The role is onsite in San Francisco and requires close customer and sales collaboration.