Top Tech Jobs & Startup Jobs in Los Angeles, CA

The Staff GenAI Backend Engineer leads engineering for intelligent routing systems, collaborates with teams to enhance customer support, and maintains architectural integrity in a high-availability environment.

Lead payments analytics by building scalable reporting, causal inference and ML models, designing experiments, partnering with product/engineering/finance to optimize payment processing, reconciliation, and settlement, and translating results into executive recommendations to drive global payments improvements.

Lead a team to identify and mitigate fraud and abuse through proactive threat analysis, SQL/Python investigations, dashboarding, cross-functional countermeasures, incident response, and automation to reduce fraud loss and strengthen platform defenses.

Lead strategy, planning, and execution to grow Airbnb Monthly Stays globally. Build tools and dashboards, analyze data, provide recommendations to leadership, manage analysts, coordinate cross-functional initiatives, and run scalable projects.

The Lead, Advanced Analytics, Acquisition will analyze data, define metrics, conduct A/B tests, and collaborate with teams to drive growth and insights.

Design and evaluate causal inference experiments and causal ML models to measure product impact, optimize resource allocation, and inform support operations. Build, deploy, and iterate statistical/ML models, analyze tradeoffs, collaborate cross-functionally, and communicate insights to influence decisions and scale data science capabilities.

Build, evaluate, and deploy LLM/ML models and synthetic datasets to improve Community Support. Identify opportunities via data exploration, analyze structured and unstructured data, automate LLM evaluation, personalize experiences, and collaborate cross-functionally to drive product and operational impact.

Build and productionize large-scale ML models and pipelines for query understanding and personalization. Work on autocomplete, query tagging/NER, query expansion, intent modeling, and LLM-powered natural-language search. Collaborate cross-functionally to design, deploy, and monitor batch and real-time systems, leveraging modern ML infrastructure and tooling to improve search relevance across Airbnb products.

Partner with Community Support leadership to provide strategic financial analysis, build ROI and unit-economics frameworks, evaluate AI and support-model investments, drive forecasting and annual planning, support commercial negotiations, and translate data into executive recommendations across Product, Engineering, Finance, and Operations.

The Principal Machine Learning Engineer will fine-tune and optimize LLMs for various applications, develop AI products, and enhance ML infrastructure in collaboration with cross-functional teams.