Hiring: AI Software Engineer, Backend (SF) Company: Loop Location: San Francisco, CA Job Posted Time: 2026-09-16 12:44:04 Target Skills & Keywords : AWS, CDK, Data Pipeline, ECS, Elasticsearch, Fargate, GraphQL, Kafka, LLM, Machine Learning, NestJS, Node.js, PostgreSQL, React, Redis, TypeScript, Vite About the job Required Skills: •Work cross-functionally with product, design, and sales to understand requirements and ship thoughtful solutions. •Build and ship the AI harness: the data pipelines, schemas, validation, and feedback loops that let agents do work reliably at scale. •Start from the outcome, not the process: curate the harness, data, and success criteria instead of the specific logic, then let agents write and validate it against real data. •Write high-quality code optimized for extensibility, working across component boundaries from frontend to backend, infrastructure, and our AI stack. •Engage in code reviews to maintain a high bar of engineering excellence. •Lead discussions and documentation to communicate and arrive at the best technical design. •Adopt AI technologies such as Cursor/Codex/Claude to accelerate software development and champion adoption of AI tools across the organization for increased productivity. •Promote better practices, share technical knowledge, and help grow Loop through deliberate feedback on product, process, and culture. Qualifications: •Work in the SF office 4+ days a week. •Two years of software engineering experience. •Excited to build with AI and apply it to real customer problems. No prior AI or machine learning background is required; you will learn our AI stack here. •Infrastructure: AWS, CDK, Fargate ECS •Backend: TypeScript, Node.js, Prisma, NestJS, PostgreSQL, Kafka, Redis, Elasticsearch, GraphQL •Frontend: TypeScript, React, Relay, Ant Design, Vite, GraphQL •AI: LLMs, prompt engineering, agentic workflows, and Loop's internal AI platform Compensation: •$145,000 - $205,000 / year •In addition to base salary, this role may be eligible for equity Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!