Platform Engineer

About HUDHUD is building infrastructure to create RL training data and evals for frontier AI agents, as well as a marketplace to sell these to frontier labs through the HUD marketplace. Our platform is used by frontier labs, Fortune 500 companies, and startups. We’ve raised $16M from top VCs and were YC W25.About the roleWe’re looking for a Platform Engineer who can own the reliability, scale, performance, and developer experience of HUD’s core infrastructure and backend systems.This is not a pure infrastructure role. The right person has strong production infra experience, but also thinks like a backend engineer: they can reason about service architecture, queues, databases, APIs, deployment safety, performance bottlenecks, and how product requirements translate into resilient systems. You’ll work across AWS, Kubernetes, Terraform, CI/CD, observability, and backend services to make HUD faster, more reliable, cheaper to run, and easier for engineers to build on.ResponsibilitiesOwn production uptime, latency, provisioning speed, infrastructure cost, and incident response for core platform servicesBuild and maintain AWS infrastructure with Terraform, Kubernetes/EKS, Helm, Docker, EC2, CodeBuild, ECR, S3, IAM, networking, and secrets managementDesign and improve backend and platform systems for scale, including capacity planning, autoscaling, queueing, backpressure, cleanup jobs, retries, and rollback pathsDefine and improve dashboards, alerts, logs, traces, SLOs, runbooks, and on-call workflows so failures are detected, debugged, and resolved quicklyBuild reliable CI/CD, release automation, environment management, and deployment workflows that improve developer productivity and reduce production riskWrite clean, maintainable code where needed to automate systems, improve backend services, and create internal toolingExperienceYou may be a good fit if you:Have owned production cloud infrastructure for a high-availability, user-facing platform, with responsibility for uptime, performance, deployment safety, and costHave deep experience with AWS infrastructure and containerized systems; experience with tools like Terraform, Kubernetes/EKS, Docker, EC2, CodeBuild, ECR, S3, IAM, load balancers, networking, and secrets management is strongly preferredHave built or operated CI/CD, environment management, release automation, observability, alerting, and incident response systemsHave strong backend engineering judgment and can reason about service architecture, APIs, databases, async systems, queues, scaling limits, and production failure modesCan write clean, maintainable code and apply strong software engineering judgment across product architecture, infrastructure, backend systems, and developer workflowsStrong candidates may also have:Experience operating infrastructure for data-heavy, ML/AI, workflow, marketplace, developer-tools, or enterprise platformsExperience designing systems for bursty workloads, long-running jobs, sandboxed execution, distributed workers, or high-concurrency servicesExperience reducing cloud spend through better architecture, autoscaling, workload placement, caching, cleanup systems, or observabilityExperience building internal platforms or tools that make engineers faster without hiding too much complexityWe prioritize technical aptitude, ownership, and learning potential over years of experience.Team & company detailsTeam Size: ~15 people currently, mostly full-time in-person, but some remote.Our team: Our team includes 4 International Olympiad medalists (IOI, ILO, IPhO), serial AI startup founders, and researchers with publications at ICLR, NeurIPS, etc.Company stage: We have 8 figures in funding and high revenue growth. We’re scaling profitably and quickly to meet very strong demand.LogisticsEmployment: Full-time.Location: On-site in the San Francisco Bay Area.Visa Sponsorship: We provide support for relocation and visas for strong full-time candidates to the US.Timeline: Applications are rolling. The process is 2 technical interviews and a 2-3 day work trial.What we offerCompetitive compensation based on experience and location100% covered top-of-the-line medical, dental, and vision from Blue Shield of CALunch and dinner when you’re in the officeCompany-wide holiday break (Christmas Eve to New Year’s Day) on top of PTO and paid holidaysOther perks including an Equinox membership, 401k, and commuter benefitsUnlimited* access to tokens for ChatGPT, Claude Code, Cursor, etc. *By unlimited, we mean no one on our token usage leaderboard has ever hit a limit. So we have no idea what the limit is.Due to high volume, we may not actively respond to every application, but feel free to contact us at recruiting@hud.so or elsewhere if we missed your application!