Full-Stack Engineer - Workflow Automation Platform (m/f/d)

peopleIXFull-Stack Engineer - Workflow Automation Platform (m/f/d)Cologne, Germany (hybrid)EmployeeSoftware Development65.000 € to 80.000 € / yearBuilding the AI-First HR Automation PlatformpeopleIX is evolving from a people analytics platform into the data and automation engine for HR teams. We enable companies to orchestrate HR processes, connect fragmented systems, and automate high-impact workflows with agentic AI.Our VisionWe're building the next-generation HR platform where workflow automation is the core product, powered by our unified people data layer. Think n8n meets HR – enabling teams to create powerful automations using natural language, without IT or data engineering.What Makes Us DifferentOur platform doesn't just show you what's happening – it acts. We're moving from "insight" to "insight → action," enabling HR teams to build and run workflows themselves: absence triggers, onboarding orchestration, leave management, and intelligent alerts powered by AI.Join Our JourneyWe're a fast-growing, VC-backed startup seeking exceptional engineers to help us become the AI-first people intelligence and automation platform that legacy HR systems cannot deliver. This is not a role for everyone – we're looking for top 1% talent who thrive on ownership, speed, and impact.Ready to shape the future of HR technology? Let's build something extraordinary together.TasksBuild the Workflow Automation EngineArchitect and develop our core workflow automation platformCreate HR-specific workflow templates: time-based triggers, analytical thresholds, event-driven processes (onboarding, offboarding, leave management), and webhook integrationsBuild our natural language workflow builder, enabling HR teams to create automations through plain text promptsDrive Full-Stack Platform DevelopmentOwn complete features end-to-end, from database schema to API to polished UI – at peopleIX, full-stack means genuine ownership of the entire feature lifecycleDevelop our scalable integration framework connecting Slack, Teams, email, and core HR systems (Personio, DATEV, SAP)Shape our People Data Platform: robust data modeling, custom fields, and data quality monitoringIntegrate AI & Agentic CapabilitiesExtend our proprietary AI agent Tira with automation capabilities, moving from insights to autonomous actionsBuild intelligent triggers and AI-powered recommendations that drive real workflow executionPioneer agentic experiences that redefine how HR teams interact with their dataCollaborate at High VelocityPartner directly with our CTO and cross-functional teams to ship features rapidlyWork closely with customers to iterate based on real-world feedbackTake full accountability from concept through deployment and production monitoringShape Our Engineering CulturePlay a foundational role in defining our technical standards, team dynamics, and development practicesInfluence architecture decisions and product direction as we scale furtherHelp build a world-class engineering organization from the ground upRequirementsQualificationsWe're looking for exceptional engineers only. If you know you're among the best at what you do, read on.Required (3+ years of proven excellence):Frontend: Expert-level React and TypeScript; you write clean, performant, maintainable codeBackend: Deep experience building robust APIs with Node.jsDatabase: Strong SQL skills (PostgreSQL preferred); you understand query optimization and data modelingWorkflow & Integration Systems: Experience building or working with automation platforms, event-driven architectures, or integration frameworksProduct Delivery: Demonstrated track record of shipping high-quality, user-facing features in productionOwnership Mindset: You operate autonomously, move fast, and take full responsibility for outcomes in high-trust environmentsStrong Preference For:Experience with tRPC, Prisma, or similar type-safe APIs and ORMsT3 Stack experience (Next.js, Tailwind CSS, tRPC, Prisma)Building AI-powered or agentic product...