Open roles at companies in the Andreessen Horowitz portfolio.
Senior backend engineer building app conversion signals for Reddit's advertising business: owning MMP integrations, SKAN processing, and App CAPI end to end. Day-to-day involves scalable ingestion/processing services, diagnostics tooling, and signal-quality analysis using distributed systems, API design, and SQL.
Engineering manager leading Reddit's Core Ads Ranking team: setting technical strategy and overseeing the ML lifecycle for foundational models, graph/sequence learning, and user understanding in ads ranking. Requires hands-on deep learning experience with TensorFlow or PyTorch plus 1+ years managing ML-focused engineers.
Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on…
Senior frontend engineer on Reddit's Ad Formats Foundation team, building and modernizing the shared infrastructure that renders ads across desktop and mobile web — ad rendering, click handling, instrumentation — using JavaScript, TypeScript, and React, with a focus on performance, accessibility, and experimentation.
Senior frontend engineer on Reddit's Ads Creative & Recommendations team, owning the technical design and delivery of advertiser-facing features in Ads Manager (creative and recommendation workflows). Core stack is JavaScript, TypeScript, and React, working alongside product, design, data science, and ML.
Senior technical lead role at Reddit owning applied-AI strategy and delivery: building and productionizing AI applications, agents, and workflow automations for internal business functions (Sales, Marketing, BD, Finance), while mentoring engineers and setting technical direction. Core work spans LLM agents, MCP/tool integrations, API/data integrations, and evals/governance.
Senior engineer at Reddit who builds AI applications, agents, connectors, and workflow automations for internal business teams (Sales, Marketing, Business Development, Finance), owning delivery from discovery to production. Core stack is LLM agents, MCP/API integrations, evals, and cloud-based observability.
Staff-level ML engineer on Reddit's ads team, leading forecasting and scenario models that estimate how campaign outcomes change with different budgets, bids, audiences, and creative. Hands-on technical leadership across probabilistic forecasting, marketplace simulation, and production ML systems.
Lead relevance measurement and evaluation for feeds and search using Python/R/SQL, causal inference, and experimentation to improve ranking algorithms.
Staff Technical Product Manager leading the roadmap for Reddit's Ads ML Platform, defining vision and building tooling that helps ML engineers train, deploy, and iterate on ad ranking and targeting models faster. Core focus areas include model-serving infrastructure, GPU optimization, and integrating Generative AI/LLM workflows.
Lead a vendor-supported ad review program for Reddit’s growing ad business, improving efficiency, automation, and operational performance while aligning with sales and platform safety goals.
Senior Business Analyst on Reddit's Revenue Strategy & Analytics team, building and maintaining the analytical tooling and data infrastructure — BigQuery ETL pipelines, Salesforce-to-revenue mappings, and Looker dashboards — that powers the Large Customer Sales channel and revenue strategy, plus emerging agentic/AI-driven analytics. Remote within the US.
Build and evolve auction, bidding, and pacing systems for Reddit's ads marketplace as a Senior IC4 ML Engineer. Design optimization algorithms that balance advertiser performance, user experience, and marketplace efficiency, owning systems end-to-end from problem formulation through production deployment and iteration. Core technologies include Python/Java/Go, Spark, Kafka, and large-scale real-ti
Senior software engineer on Reddit's Agentic Ads Experience team, designing and shipping AI-powered advertiser-facing features (campaign assistants, creative generation, audience discovery, conversational analytics) end-to-end using LLMs, agents, RAG, evals, and strong systems engineering in languages like Python, Go, Rust, Java, or JavaScript.
A senior data scientist at Reddit designs identity resolution models, improves ad measurement methodologies, and enhances predictive performance for advertisers using statistical and machine learning techniques.