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

Leads complex technical accounting and strategic transaction matters, including acquisitions, investments, financing, equity, impairment, consolidation, leases, and financial instruments. Develops authoritative accounting conclusions, memoranda, disclosures, journal entries, close procedures, and controls. Advises senior Finance and business leaders, partners with auditors and cross-functional teams, guides accounting policy changes, and drives implementation of high-priority corporate initiatives.

Own signal integrity and power integrity architecture, modeling, optimization, and validation for advanced AI ASIC packages. Design and analyze high-speed SerDes, PCIe, HBM, DDR, and chiplet interfaces; model packages, interposers, substrates, and power-delivery networks; optimize stack-ups, routing, bump maps, and power distribution; automate simulation and design-space exploration; and collaborate across ASIC, package, PCB, system, thermal, power, validation, and manufacturing teams.

Serves as senior tax advisor across commercial, product, infrastructure, financing, and international expansion initiatives. Evaluates tax and economic outcomes, structures transactions, advises on complex contracts, supports cross-border operations, and develops scalable tax frameworks. Partners with Finance, Legal, Product, Infrastructure, Treasury, and commercial teams; manages external advisors; monitors tax and regulatory developments; and communicates recommendations to senior leadership.

Manage complex programs for collecting high-quality data, collaborating with external vendors and internal teams to ensure project success and model training.

Build and own the production improvement loop for LLM-powered GTM agent workflows: instrument behavior, define evaluation and monitoring, diagnose failures, design and ship behavior improvements, build backend services and feedback pipelines, run experiments and staged rollouts, and partner with product, data, and GTM teams to measure business impact while ensuring safety and reliability.

Founding full‑stack engineer to design, prototype, and ship AI-powered legal products. Own end-to-end frontend and backend systems, build on OpenAI platforms and APIs, iterate with product/design/research, and help define technical foundations and engineering culture for the Legal team.

Lead technical engagements with strategic customers using frontier AI capabilities. Rapidly prototype solutions, design evaluations, troubleshoot model behavior, and run end-to-end early access programs. Synthesize findings, align cross-functional partners, and codify reusable architectures and playbooks to inform product and launch decisions.

Lead product design for growth experiences across Codex and ChatGPT Business. Manage and mentor a small team of product designers while remaining hands-on with high-impact projects. Set quality standards across interaction, visual, systems, and content design; partner with product, engineering, research, data, and go-to-market teams; and use experimentation, quantitative data, and research to improve discovery, onboarding, activation, engagement, conversion, and retention.

Design and ship APIs, SDKs, and backend services that enable developers to create, test, publish, update, and share plugins for ChatGPT and Codex. Improve compatibility across products, contribute to MCP and other open standards, and collaborate with developers, partners, Product, Research, Security, and Trust & Safety. The role spans developer-facing interfaces, platform tooling, documentation, permissions, and safe, reliable plugin execution.

Leads technical strategy and execution for enterprise AI products and platform capabilities. Translates customer and business needs into product priorities, influences architecture, coordinates cross-functional launches, and improves enterprise deployment, security, governance, adoption, and scalability. Partners with engineering, product, security, legal, design, and go-to-market teams while communicating risks, milestones, tradeoffs, and program health to senior leadership.