Senior Product Engineer, Backend-Leaning

Senior or Staff Product Engineer, Backend-LeaningLocation: Redwood City, CA (Hybrid) or Remote - USTeam: EngineeringType: Full-timeAbout GridCAREGridCARE solves one of the biggest bottlenecks in AI infrastructure: access to power.As demand for new compute capacity accelerates, power availability has become a gating constraint on deploying data centers. GridCARE builds software that helps developers and utilities understand and unlock near‐term grid capacity using physics‐based models and modern data systems.We're a small, ambitious team working at the intersection of energy systems, software, and infrastructure. We partner closely with utilities, developers, and infrastructure providers to turn complex grid analysis into practical products that help accelerate deployment.The RoleWe're looking for a senior backend‐leaning full‐stack product engineer to help build the customer‐facing application layer for GridCARE.This role is centered on the application/API layer that sits between the web app and our core modeling and batch‐job systems. You'll own features end to end: understanding the user and domain problem, shaping the workflow with teammates, and shipping durable software that customers rely on.You should be strongest in the backend/application layer, but comfortable contributing across the stack when the feature demands it. You don't need to be a designer, but you should have strong product judgment and enough frontend fluency to help raise the bar for a growing frontend team through pairing, code review, and clear technical patterns.This is a strong fit for someone who has built multi‐tenant SaaS products before and enjoys turning complex backend capabilities into clean customer‐facing software.What You'll DoBuild and evolve the backend‐for‐frontend / application API layer that powers GridCARE's web applicationOwn product features end to end, from understanding the user and domain problem to shipping polished, production‐ready softwareDesign and implement HTTP APIs, webhook flows, and status/result delivery patterns for uploads, jobs, and other user‐facing workflowsDefine typed request/response models and clear contracts between the frontend, API layer, and backend execution systemsImplement backend services in Python that integrate with Auth0, datastores including RDS and S3, and batch‐job orchestration systemsContribute to the product surface in a modern TypeScript SPA when needed, and help establish maintainable frontend patternsPartner closely with domain experts to turn analytical and batch workflows into usable product featuresCollaborate with platform and SRE teammates on observability, deployability, reliability, and production operationsHelp replace prototype‐era systems with typed, testable, production‐grade softwareContribute to architecture decisions, engineering standards, and development culture as the team growsWhat We're Looking For6+ years of experience building production software, ideally including customer‐facing B2B SaaS productsStrong backend engineering skills in Python, with experience designing HTTP APIs, business logic, typed request/response models, and service boundaries for production web applicationsExperience maintaining clear API contracts between frontend and backend systems; familiarity with OpenAPI‐based workflows is a plusExperience with authentication and authorization systems such as OAuth2/OIDC, Auth0, Okta, RBAC/ABAC/ReBAC, and multi‐tenant access controlComfortable shipping features in a modern TypeScript frontend, even if backend is your primary strengthAbility and interest in mentoring less‐experienced frontend engineers through pairing, review, and exampleExperience with workflows involving file upload/download, background jobs, queues, webhooks, and real‐time or near‐real‐time status updatesStrong product mindset and a willingness to own problems end to endTrack record of shipping in high‐ambiguity startup environments with good judgment about when to prototype quickly and when to harden for productionStrong communication skills and the ability to collaborate across product, domain, and infrastructure teamsProficient with AI coding tools (e.g. Claude, Copilot). Demonstrate ability to leverage AI coding assistants effectively in day‐to‐day software developmentNice to HaveExperience with FastAPI, Starlette, or similar Python ASGI frameworksExperience with Pydantic and its larger ecosystemExperience with PostgreSQL, PostGIS, and/or geospatial or time‐series dataExperience with AWS services such as S3, RDS, EventBridge, EKSExperience with workflow orchestration systems such as Prefect, Temporal, Airflow, or similarExperience with observability tooling built on OpenTelemetryExperience in energy systems, infrastructure software, climate tech, or other complex technical domainsExperience integrating LLM‐based features into production applicationsWhy GridCAREWork on a problem that directly affects the speed of deploying new AI and energy infrastructureHelp build a product from the ground up alongside domain experts and experienced infrastructure teammatesOwn meaningful technical scope in a small, high‐trust teamCompetitive salary, equity, and benefitsHybrid collaboration in Redwood City with flexibility for remote workOur PhilosophyWe believe small teams of strong engineers can solve important, real‐world infrastructure problems.We value clear thinking, strong ownership, pragmatic execution, and systems that hold up in production. We move quickly, but we care about correctness, reliability, and building software that customers can trust.If you're excited about building backend‐heavy product software at the intersection of energy, infrastructure, and modern SaaS, we'd love to talk.#J-18808-Ljbffr