Top Tech Jobs & Startup Jobs in Los Angeles, CA

Translate design specs into pixel-perfect, responsive web interfaces using TypeScript, CSS3, and HTML. Follow design systems and accessibility (WCAG) standards, optimize frontend performance, resolve spec ambiguities, collaborate remotely via documentation and code reviews, and provide frontend expertise to support AI model evaluation.

Design original Olympiad-level math problems, evaluate AI-generated solutions for correctness and rigor, and produce clear, high-quality reference solutions and reviews to improve AI mathematical reasoning.

Evaluate and improve AI-generated enterprise sales workflows, create gold-standard examples for prospecting through proposals, design evaluation rubrics, perform simulated end-to-end sales tasks in modern platforms, produce executive-facing sales materials, and collaborate with researchers and SMEs to enhance AI sales reasoning.

Remote independent-contractor research role for verified Google Business Profile owners/administrators. Participants will manage and review GBP content, follow project guidelines, provide written feedback, and help improve AI understanding of local business profiles. Flexible schedule; weekly payments based on approved work.

Design reproducible coding environments and high-quality reference solutions to train AI. Create and validate complex programming challenges, debug and optimize codebases, refactor legacy systems, document technical decisions, and review technical submissions while collaborating remotely.

Remote contract role applying equity research expertise to train and evaluate AI models. Review AI-generated financial analyses, analyze SEC filings and financial statements, create evaluation tasks and structured datasets, and collaborate with AI researchers to improve financial reasoning and assessment criteria. Minimum 2 years equity research experience; 10 hours/week minimum commitment.

Lead end-to-end recruitment marketing campaigns: plan and execute paid and organic content, manage content pipelines and calendars, measure campaign performance across channels, generate optimization insights, and coordinate with recruiters and stakeholders to improve candidate attraction and conversion.

Evaluate and author high-quality computer science content to improve AI model reasoning and accuracy. Analyze complex CS problems, create scenarios/datasets, review AI outputs for correctness, and collaborate remotely to refine guidelines and documentation.

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.

Contractor engineering SME to review and create technical engineering content for AI training: analyze documentation, develop examples and datasets, evaluate AI outputs for technical accuracy, and collaborate with teams to improve model performance and processes.