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

Develop and maintain engine-level systems, game modding tools, and editor extensions. Implement and optimize rendering pipelines and shaders using DirectX/Vulkan/OpenGL/Metal. Profile and optimize CPU/GPU/memory and multithreaded workloads, debug complex graphics issues, and collaborate with engineers, artists, and designers to deliver high-quality, maintainable C++ engine code.

Remote contractor role to create and evaluate mathematical problems, proofs, and datasets to train and improve AI models. Assess AI-generated solutions for correctness, produce technical documentation, and collaborate with cross-functional teams to develop benchmark datasets and provide actionable feedback to improve model reasoning.

Design task-specific, objective evaluation frameworks for data science deliverables. Assess AI- and human-generated analyses, models, dashboards, experiments, and recommendations using reproducible scoring. Produce detailed written justifications, refine methodologies with reviewer feedback, and collaborate with cross-functional teams to improve AI training and evaluation standards.

Evaluate and score AI-generated and human consulting deliverables by developing task-specific evaluation criteria, applying structured frameworks, and providing evidence-based written justifications. Assess strategic thinking, financial reasoning, market analysis, and executive communication; collaborate to refine guidelines, improve scoring consistency, and enhance AI training datasets. Work independently in a remote, asynchronous review environment and continuously calibrate evaluation quality against peers.

Use Spanish voice commands to perform everyday tasks, record and correct transcripts, evaluate AI responses for accuracy and naturalness, maintain logs, upload recordings, and follow quality standards to improve multilingual voice AI systems.

Evaluate and record Turkish voice interactions using a Mac, perform everyday voice-driven tasks, transcribe and correct speech, rate AI responses for quality, maintain task logs, upload recordings, and follow project quality standards.

Provide real-world financial planning expertise to train and evaluate AI systems. Review scenarios, assess AI recommendations for accuracy, compliance, and suitability, document client conversations, define planning methodologies, give structured feedback, identify compliance/referral needs, and improve AI workflows and financial planning processes.

Provide subject-matter expertise in personal financial planning and wealth management to train and evaluate AI-driven advisory tools. Review client scenarios, give structured written feedback, translate complex financial concepts into client-friendly guidance, ensure compliance with regulatory and fiduciary standards, and contribute to improving AI recommendations for investment, retirement, estate, and debt-management planning.

Lead architecture, development, and delivery of enterprise-scale real-time streaming solutions using Apache Flink and Java. Manage and mentor engineering teams, design fault-tolerant distributed systems, implement stream processing pipelines, and ensure performance, scalability, and production reliability. Collaborate with stakeholders across product, DevOps, and architecture to drive technical roadmaps and best practices.

Seeking an Engineering Manager or Principal Engineer to drive technical advancement. Must have extensive Java, Apache Flink, and Rust experience, strong background building scalable distributed systems, proven leadership, and a high-ownership, builder mindset in a security-focused company.