[Remote] Senior Software Engineer, GenAI Platform

Note: The job is a remote job and is open to candidates in USA. Reddit is a community of communities where people can dive into anything through experiences built around their interests, hobbies, and passions. As a Senior Software Engineer, you will lead the development of a large-scale GenAI Platform, focusing on the design and implementation of key AI systems and infrastructure.ResponsibilitiesLead the development of a large-scale GenAI Platform at RedditContribute to the design, implementation, and maintenance of the LLM Gateway, focusing on features like unified API endpoints for internal/externally hosted LLM, rate/token limit management, and intelligent failover mechanisms to boost uptime and reliabilityDesigned and developed ML and Generative AI systems in cloud-based production environments at scaleBuild and manage enterprise-grade RAG applications using embeddings, vector search, and retrieval pipelinesImplement and operationalize agentic AI workflows with tool use using frameworks such as LangChain and LangGraphDrive adoption of MLOps / LLMOps practices, including CI/CD automation, versioning, testing, and lifecycle managementEstablish best practices for observability, monitoring, evaluation, and governance of GenAI pipelines in productionStrong ownership mindset and platform thinkingAbility to lead AI platform delivery from concept to productionSkills5+ years of experience in ML Engineering, AI Platform Engineering, or Cloud AI Deployment rolesExperience operating orchestration systems such as Kubernetes at scaleDeep experience with cloud-based technologies for supporting an ML platform, including tools like AWS, Google Cloud Storage, infrastructure-as-code (Terraform), and moreProficiency with the common programming languages and frameworks of ML, such as Go, Python, etcExcellent communication skills with the ability to articulate technical AI concepts to non-technical stakeholdersStrong focus on scalability, reliability, performance, and ease of useStrong ownership mindset and platform thinkingAbility to lead AI platform delivery from concept to productionStrong knowledge of model serving, inference pipelines, monitoring, and observability for AI systemsStrong proficiency in Python and experience with modern AI/ML frameworks (e.g. LangChain, Vertex AI Agent Builder, TensorFlow, PyTorch)BenefitsComprehensive Healthcare Benefits and Income Replacement Programs401k with Employer MatchGlobal Benefit programs that fit your lifestyle, from workspace to professional development to caregiving supportFamily Planning SupportGender-Affirming CareMental Health & Coaching BenefitsFlexible Vacation & Paid Volunteer Time OffGenerous Paid Parental LeaveCompany OverviewReddit is the heart of the internet, where millions of people get together to talk about any topic imaginable. It was founded in 2005, and is headquartered in San Francisco, California, USA, with a workforce of 1001-5000 employees. Its website is https://www.redditinc.com.Company H1B SponsorshipReddit, Inc. has a track record of offering H1B sponsorships, with 22 in 2026, 99 in 2025, 63 in 2024, 76 in 2023, 70 in 2022, 68 in 2021, 39 in 2020. Please note that this does not guarantee sponsorship for this specific role.