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

As a Founding Engineer, you'll design and implement AI agent systems, integrating with digital services while optimizing for performance, reliability, and security.

Lead design, training, and deployment of large-scale ML models (LLMs, diffusion, GNNs). Own end-to-end training pipelines, distributed training, evaluation, and inference architecture. Collaborate with data and infra teams, drive reproducible model development, and provide technical leadership and mentorship from research through production.

The Executive Assistant will support C-Suite executives, manage calendars, facilitate meetings, coordinate travel, and handle sensitive information.

Lead the production and strategy of organic content using AI tools for SEO and social media. Manage content pipeline and ensure quality across various formats while collaborating with internal experts and contractors.

Lead institutional fundraising strategy and manage a 25-30 funder portfolio to secure $2M+ annually. Write proposals and reports, cultivate funder relationships, maintain grants tracking in Salesforce, collaborate with leadership and program/finance teams, and ensure compliance with funder requirements.

Manage U.S. full-cycle accounting operations including AP/AR, payroll, corporate card reconciliation, timesheet cost allocation, month-end close, GL reconciliations, inter-entity transfers, audit support, budgeting, internal controls, and finance system improvements to support global consolidation and grant reporting.

Own technical customer engagements for Lumai's optical compute inference platform: lead deep technical discovery, scope and run benchmarks, design solutions and reference architectures, produce proposals/RFIs/RFPs, deliver demos/workshops, and feed customer requirements into product and engineering roadmaps.

Support Advisory Board engagement and executive communications by developing materials, tracking integration initiatives, building dashboards, and leading cross-functional projects. Translate complex operational, financial, and technical information into clear briefings, coordinate stakeholders, maintain governance rhythms, and ensure follow-up actions. Drive accountability, manage risks and blockers, and handle sensitive information with discretion to enable executive decision-making and strategic alignment.

This Senior Platform Engineer role involves building backend services, designing microservices, managing Kubernetes infrastructure, and implementing infrastructure as code, contributing to an AI-driven enterprise platform.

Manage client paid search channels (primarily Google Ads, Bing, AMS), build and optimize campaigns, suggest ad copy and creative, produce weekly/monthly reporting, monitor analytics dashboards, communicate results to clients, and stay current on PPC trends to improve agency processes.