Technical lead for experimentation methodology on Reddit's Consumer team. Owns high‑stakes experiment design and analysis (including cluster randomization, switchback designs, synthetic controls, and handling interference/spillovers), builds scalable experimentation platforms and guardrails, mentors data scientists, and translates experimental insights for product leadership. Requires strong causal inference expertise and proficiency with SQL and R/Python; experience requirements vary by degree (Ph.D.: 8+ years; M.S.: 12+ years).

Lead technical authority on experimentation methodology for Reddit Consumer. Role focuses on designing and analyzing complex experiments (handling spillovers, network interference, two-sided experiments, switchback designs, cluster randomization, synthetic control), building self-serve experimentation tools, influencing product strategy through rigorous causal analysis, and mentoring other data scientists. Requires Ph.D. (8+ years) or M.S. (12+ years) in a quantitative field and strong practical/theoretical expertise in causal inference and experimentation.

Join Reddit’s Community Builders team to design, develop, and maintain frontend product features with emphasis on performance, security, and scalability. Collaborate with product, design, and data teams; contribute across the full development cycle; review code and design docs; and mentor other engineers. Requires 6+ years frontend development experience (JavaScript/TypeScript) and experience with modern frontend frameworks.

Act as a trusted technical advisor and hands-on engineer for strategic advertising partners, leading integrations with Reddit’s advertising APIs, building prototypes, troubleshooting complex issues, and influencing product and platform priorities. Requires 5+ years of software development experience and hands-on coding in modern languages (examples listed: Python, Java, JavaScript/Node.js) with knowledge of REST APIs, OAuth2/OpenID Connect, and SDK patterns.

Reddit seeks a Staff Technical Product Manager to lead the Ads ML Platform roadmap and infrastructure that power ad targeting, ranking, and content-understanding models. Responsibilities include defining vision, building tooling to accelerate ML engineers and data scientists (training, deployment, model serving), integrating Generative AI/LLM workflows, and tracking KPIs around reliability, latency, cost, and developer productivity. Minimum qualifications: 7+ years product management experience focused on internal technical products, developer tools, data/ML platforms, or ads/ranking. Base salary range listed: $217,000–$303,900 USD per year.

Work on Reddit's Notifications team to design, implement and maintain backend services (notifications and email) and high-quality frontend features. Responsibilities include full development lifecycle (design docs, development, testing, experimentation, analysis, launch) and collaborating with Product, ML, and Data Science. Tech stack examples: TypeScript, GraphQL, Go, Python, Kafka, BigQuery, Kubernetes. Requires 3+ years software engineering experience and familiarity with testing, resiliency, and live operations. Remote role listed as Remote - United States. Salary range $164,000–$229,000 USD.

Reddit seeks a Director of Engineering to lead Developer Productivity and AI initiatives—building agent infrastructure, AI-assisted code review, developer environments, LLM governance, measurement systems, and software delivery automation. The role requires 14+ years of experience in software engineering or related technical leadership, is remote for US-based employees, and has a posted base salary range of $260,800–$365,100 USD per year.

Senior-level (Principal) TPM role responsible for defining and driving cross-organizational programs across mobile, web, and shared platforms to improve performance, reliability, observability, experimentation guardrails, and release quality. Requires partnering with engineering, infrastructure, client platforms, and data teams, building measurement systems, and leading organizational change to make performance a durable part of engineering processes. Remote — United States.

Reddit seeks a Staff Data Scientist for the Marketing Science team to define long-term marketing measurement strategy, build and refine Media Mix Models and Multi-Touch Attribution, and lead advanced causal inference and always-on incrementality experiments. The role requires an advanced quantitative degree, strong experience with MMM, experimentation, econometrics, Python/R and SQL, and experience influencing senior stakeholders.

Reddit seeks a Staff Data Scientist for the Consumer team (remote — Ontario, Canada). The role focuses on informing product strategy through exploratory analysis, metric and ETL design, experimentation (design through analysis), causal inference, building self-serve analytics tools, and mentoring junior data scientists. Advanced degree required with substantial industry experience (Ph.D.: 6+ years; M.S.: 10+ years).

Lead the design and implementation of a modular, easy-to-integrate iOS video player and collaborate with backend/CDN teams to optimize global media delivery and performance. Work cross-functionally with product and design, set engineering standards, and mentor other engineers. Requires 8+ years building user-facing native iOS applications with Swift and deep knowledge of AVFoundation, Core Media, Core Video, streaming protocols (HLS, MPEG-DASH, MP4), and CDN integration. Role is remote (United States) and listed with a base salary range of $217,000–$303,000 USD.

Lead the strategy and technical execution of marketing intelligence to measure and optimize Reddit’s marketing spend, spanning B2B advertiser acquisition and B2C user growth. Responsibilities include building MMM and MTA systems, designing incrementality experiments and geo-holdouts, advancing causal inference methods, and mentoring junior scientists. Requires an advanced quantitative degree and extensive industry experience (MS: 10+ years; PhD: 6+ years).

Lead model development and MLOps for GenAI Security at Reddit: define problems, assemble and label datasets, build ETL and training pipelines, train and evaluate deep learning models (transformers, embeddings, sequence models), deploy and monitor production models, and partner with cross-functional teams. Requires 5+ years of production ML/deep learning experience and hands-on use of frameworks such as PyTorch or TensorFlow.

Lead architecture and performance efforts for Reddit's iOS app: define architecture and best practices, improve modularity and scalability, set and measure performance goals (ANR, app launch time/TTI/TTFF, dropped frames), improve observability/telemetry, and mentor iOS engineers across the company. Requires 10+ years software development experience with at least 5+ years designing/developing iOS applications.

Reddit is hiring a Staff Product Security Engineer to lead design and delivery of secure frameworks, paved paths, and workflow-native controls (including for AI-assisted development) to prevent vulnerabilities before production. Responsibilities include building guardrails and library-level controls, driving product security reviews, and improving vulnerability discovery and remediation pipelines. Requirements include 8+ years in software engineering/product/application security (with at least 2 years at staff scope), proficiency in one or more languages (Go, Python, JS/TS), and experience with CI/CD, developer-facing platforms, and vulnerability management. Base salary range (US): $217,000–$303,900 USD/year.

Manage and grow a team responsible for storage systems underlying Reddit's search (full-text and vector/ANN) and related ranking use cases. Work with technologies such as Milvus, Vespa, Solr, Kubernetes and languages including Go, Rust, C++, and Java to drive scalable, reliable, and high-performance infrastructure while mentoring engineers and collaborating across the engineering organization.

Lead design and implementation of search relevance, retrieval, ranking, and ML-driven search features (including LLMs and RAG). Requires 10+ years experience in large-scale search/recommendation systems, proficiency with PyTorch or TensorFlow, production LLM experience, and programming in Python and/or Golang. Remote role for United States-based candidates.

Lead the Conversion Modeling team at Reddit (remote in the U.S.), owning technical vision and execution for production-scale conversion prediction models (ranking/recommendation). Requires deep ML and deep learning expertise, experience with TensorFlow/PyTorch, data pipelines, production model lifecycle, and at least 2+ years managing or tech-leading ML engineering teams. Posted salary range: $230,000–$322,000 USD per year.

Senior Staff Machine Learning Engineer to define and lead Reddit’s GenAI Platform vision, design and operate a unified LLM Gateway (APIs, rate/token limits, failover), set MLOps/LLMOps standards (CI/CD, testing, versioning, evaluation), and drive platform architecture for scalability, reliability, and observability. Requires 10+ years experience and deep production experience with Kubernetes and cloud ML infrastructure.

Lead product vision, roadmap, and architecture for GTM AI technology and automation to improve seller productivity and scale GTM operations. Responsible for building AI-powered tools (account planning, pipeline management, prospecting), defining data foundations (enrichment, orchestration, scoring, entity resolution), running experiments and metrics, and driving cross-functional delivery and adoption. Requires 7+ years product management experience in GTM systems / Enterprise SaaS.