Founding Full Stack Engineer ($150K - $300K + Equity) at $8.2M-Funded AI Agent Startup

About the jobJob Title: Founding EngineerSalary: $150K - $300K base + 0.5% - 1.5% equityLocation: San Francisco, CA (5 days in-office)Visa Sponsorship: Available on a case-by-case basis for exceptional candidatesEmployment Type: Full-timeCompany DescriptionThis employer is building the digital backbone for the real economy.The physical economy runs on thousands of disconnected systems across manufacturing, warehousing, trucking, logistics, and supply chain operations. Today, connecting these systems requires armies of consultants and custom integration projects that are rebuilt from scratch every time.They are replacing that process with specialized AI agents.Their platform automates the entire integration lifecycle: gathering requirements, generating integration code, testing it, deploying it, monitoring it in production, and fixing issues when they occur.The company already has paying enterprise customers, including some of the largest companies in global logistics, with production integrations running today.Founded in 2023, this employer has raised $8.2M in funding and recently closed a $6.6M seed round. The team is based in San Francisco and operates with a highly ambitious, high-ownership culture.Why this role is remarkableJoin as the first engineering hire and help build the technical foundation of a company solving a large, complex infrastructure problemWork directly alongside experienced repeat founders who have previously scaled venture-backed companies from the earliest stages through significant growthOwn core systems end-to-end and help establish the engineering culture, architecture, and technical standards for future hiresWork at the intersection of AI agents, developer tooling, infrastructure, and enterprise softwareMake foundational decisions that will directly influence the future direction of the company and productWhat you will doDesign and build specialized AI agents that automate complex technical workflowsDevelop the core infrastructure that powers deployment, execution, monitoring, and reliabilityOwn critical platform components from design through productionBuild developer-facing systems and internal platforms that enable rapid scalingEstablish engineering best practices and technical standardsWork directly with customers and founders to understand problems and shape product directionMake high-leverage architectural decisions across infrastructure, AI systems, and platform engineeringThe ideal candidate2 to 5 years of experience as a software engineer at a VC-backed startup between Seed and Series BStrong experience shipping products end-to-end with meaningful ownershipProficient in TypeScript and comfortable working across the stackExperience building infrastructure, developer platforms, runtimes, backend systems, or internal toolingExperience building with or working alongside AI agents, LLM applications, or agentic workflowsUndergraduate degree in Computer Science, Engineering, or a related technical disciplineStrong bias toward action and ability to operate independentlyExcited by ambiguity, ownership, and building from scratchBonus pointsExperience at a developer infrastructure company such as Vercel or similar platform-focused organizationsBuilt personal projects, open-source tools, startups, or side projects demonstrating technical curiosity and initiativeExperience with distributed systems, Kubernetes, or cloud infrastructureThis role is NOT for you ifYou prefer clearly defined requirements and structured task executionYou require extensive direction to be productiveMost of your career has been spent at large non-tech enterprises or consulting organizations without significant product ownershipYou primarily identify as a people manager rather than a hands-on builderYou are looking for a management-oriented positionTech StackTypeScript, React, Bun, Effect-TS, PostgreSQL, Kubernetes, AWSNext StepsApply via this LinkedIn job post.We will review applications and reach out if there is a strong match.If aligned, we will introduce you directly to the founding team.If this role is not the right fit, we may suggest and facilitate introductions to other high-signal startup opportunities we are actively recruiting for, always with your permission.A quick note on authenticityThis is a real, active role that CoffeeSpace is recruiting for in close partnership with this employer. We do not post speculative opportunities and work directly with hiring teams on their actual hiring needs.