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This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Migration Expert (SQL Server to PostgreSQL) based in Brazil. We are seeking an…
Na CI&T , ajudamos grandes empresas a transformar o potencial da AI em impacto real nos negócios com AI Deployment, execução AI-native e tech-integrated business solutions. Com 30 anos de experiência em…
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…
Reddit is hiring a Principal Data Scientist to lead the long-term scientific strategy for its advertising platform — defining measurement, prediction, and optimization frameworks for ads auctions, targeting, and advertiser LTV. The role relies heavily on statistics, econometrics, causal inference, machine learning, Python/R, and SQL at large scale.
Senior ML Infrastructure Engineer on Reddit's ML Platform team, building and scaling the infrastructure behind recommendations and content discovery. Day-to-day work spans MLOps lifecycle design, graph ML platform development, distributed GPU training optimization, and large-scale batch data pipelines using Python, PyTorch, Ray, Kubernetes, Spark, and GCP.
Senior backend engineer on Reddit's Ads organization, building microservices, APIs, and distributed real-time systems for advertiser products like ads.reddit.com. Day-to-day work spans Go, Python, and Scala services plus data infrastructure like Kafka, Spark, Kubernetes, and Postgres.
Lead relevance measurement and evaluation for feeds and search using Python/R/SQL, causal inference, and experimentation to improve ranking algorithms.
Reddit is hiring a Senior Staff ML Engineer to lead the vision, architecture, and roadmap of its large-scale GenAI Platform, including the LLM Gateway (unified APIs, rate/token limits, intelligent failover), enterprise RAG, and agentic AI workflows. Core stack includes Kubernetes, AWS/GCP cloud infra, Terraform, Go, and Python, plus MLOps/LLMOps practices.
Builds and maintains backend systems for Reddit’s ads platform, including microservices, distributed systems for ad targeting, and real-time data pipelines to measure campaign performance.
Mid-level backend engineer on Reddit's Ads organization (remote in Ontario, Canada), building microservices, distributed systems, and real-time data pipelines that power advertiser-facing products like ads.reddit.com. Core stack includes Go, Python, Scala, Spark, Kafka, Postgres, BigQuery, Redis, and Kubernetes.
Mid-level backend engineer on Reddit's Ads organization, building the microservices, APIs, and distributed data-intensive systems behind ads.reddit.com — ad serving, interactive ad experiences, and real-time campaign measurement. Core stack: Go, Python, Scala, Spark, Kafka, Postgres, Redis, Kubernetes.
Build and refine Reddit’s ad-measurement and identity systems using probabilistic modeling, causal inference, and ML to improve advertiser ROAS and privacy-safe targeting.
Staff Data Scientist on Reddit’s Ads team building identity resolution, lift measurement, and predictive models to improve ad performance and advertiser ROI.
Lead Reddit’s marketing measurement strategy, building Media Mix Models and incrementality tests to optimize hundreds of millions in ad spend across B2B and B2C growth.
Lead Reddit’s marketing measurement strategy, building Media Mix Models and incrementality tests to optimize hundreds of millions in ad spend and drive advertiser/user growth.
Staff-level ML engineer at Reddit building end-to-end machine learning systems for consumer experiences — recommendations, search, notifications, content/user understanding, and LLM/GenAI-powered features — from research and modeling through large-scale production deployment, using Python, Golang, and frameworks like TensorFlow, PyTorch, and Hugging Face.
Reddit is hiring a Staff ML Systems/Infrastructure Engineer to build and lead the platform powering large-scale ML: MLOps lifecycle tooling, a graph ML codebase, GPU training performance tuning, and pipelines for graph data with billions of nodes. Core stack includes Python, PyTorch/TensorFlow, Ray, Kubernetes, GCP (BigQuery, GCS), Terraform, and Apache Beam/Spark.
Reddit is hiring a Staff Product Security Engineer to build secure frameworks, guardrails, and developer-workflow controls (including for AI-assisted coding) that prevent vulnerability classes from reaching production. Day-to-day involves platform-level security automation, product security reviews, and cross-team architecture influence using Go, Python, or JS/TS.
Build and optimize Reddit's iOS video features to increase watch time and user engagement, using Swift, AVFoundation, and HLS streaming.
Staff engineer on Reddit's Onboarding team, owning the backend behind every new user's first experience: signal-collection systems, ML-powered personalization pipelines, and experimentation infrastructure. Day to day: set technical strategy, run rigorous A/B tests, and partner with Relevance, Feeds, and ML teams at scale.
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