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

Building the AI-First HR Automation Platform

peopleIX 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 Vision

We'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 Different

Our 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 Journey

We'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.

Tasks

Build the Workflow Automation Engine

Architect and develop our core workflow automation platform

Create HR-specific workflow templates: time-based triggers, analytical thresholds, event-driven processes (onboarding, offboarding, leave management), and webhook integrations

Build our natural language workflow builder, enabling HR teams to create automations through plain text prompts

Drive Full-Stack Platform Development

Own complete features end-to-end, from database schema to API to polished UI – at peopleIX, full-stack means genuine ownership of the entire feature lifecycle

Develop 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 monitoring

Integrate AI & Agentic Capabilities

Extend our proprietary AI agent Tira with automation capabilities, moving from insights to autonomous actions

Build intelligent triggers and AI-powered recommendations that drive real workflow execution

Pioneer agentic experiences that redefine how HR teams interact with their data

Collaborate at High Velocity

Partner directly with our CTO and cross-functional teams to ship features rapidly

Work closely with customers to iterate based on real-world feedback

Take full accountability from concept through deployment and production monitoring

Shape Our Engineering Culture

Play a foundational role in defining our technical standards, team dynamics, and development practices

Influence architecture decisions and product direction as we scale further

Help build a world-class engineering organization from the ground up

Requirements

Qualifications

We'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 code

Backend: Deep experience building robust APIs with Node.js

Database: Strong SQL skills (PostgreSQL preferred); you understand query optimization and data modeling

Workflow & Integration Systems: Experience building or working with automation platforms, event-driven architectures, or integration frameworks

Product Delivery: Demonstrated track record of shipping high-quality, user-facing features in production

Ownership Mindset: You operate autonomously, move fast, and take full responsibility for outcomes in high-trust environments

Strong Preference For:

Experience with tRPC, Prisma, or similar type-safe APIs and ORMs

T3 Stack experience (Next.js, Tailwind CSS, tRPC, Prisma)

Building AI-powered or agentic product experiences

Startup experience with demonstrated impact

B2B SaaS product development

Proficiency with AI-assisted development (Cursor, Copilot, or AI coding agents)

Benefits

Benefits

Real equity, real upside – competitive compensation including meaningful stock options

Maximum impact – flat hierarchies, genuine ownership, and direct influence on product direction from day one

Modern setup – office in the heart of Cologne with flexible hours and hybrid work

Growth investment – dedicated learning & development budget plus Urban Sports Club membership

Team culture – regular offsites with a team that moves fast and builds together

We're not hiring to fill a seat. We're looking for an exceptional engineer who will meaningfully accelerate our journey to becoming the AI-first HR automation platform.

If you're among the best at what you do and excited by the challenge of building workflow infrastructure that transforms how HR teams operate – we'd love to hear from you.