Founding Full-Stack Engineer

Everday is building the AI-native operating system for workforce intelligence. We're turning organizational chaos into strategic clarity—making people decisions as data-driven as financial ones.

Companies with hundreds of millions in revenue run their most expensive asset (their people) on spreadsheets and gut instinct. When a key person leaves, it paralyzes operations for months. We're solving this $100B+ problem.

Everday is live. Customers are paying. Now we need a founding engineer to help us scale it.

Most workforce tools are just HRIS systems with basic reporting. We're building something fundamentally different: graph-based workforce intelligence powered by multi-agent AI systems that understand organizational relationships, skills, and knowledge networks at a semantic level.

Your mission: Build the core platform that transforms fragmented workforce data into strategic intelligence—the system that maps who knows what, who can do what, and how organizations actually function beneath the org chart.

AI agent orchestration systems

• Design and implement LangGraph workflows that orchestrate multi-agent AI systems solving real workforce problems

• Build graph-based data models in Neo4j that map organizational relationships, skills, and knowledge networks

• Create semantic understanding across chaotic workforce data (HRIS, project management, communications, calendar)

• Engineer AI systems that provide strategic insight, not chatbot theater

Production-scale platform infrastructure

• Build event-driven architecture with Inngest for reliable, scalable workforce intelligence processing

• Ship full-stack TypeScript features (Next.js, NestJS, tRPC) that customers immediately use

• Integrate fragmented data sources and create unified intelligence layer

• Make architectural decisions balancing Neo4j (relationships) and Postgres (structured data)

• Own features from concept to production—infrastructure, CI/CD, monitoring, everything

We value strong engineering fundamentals and the ability to ship. Here's what we're using. The right engineer brings 5+ years of production experience and can move fast with these tools.

• Frontend: React, Next.js, TypeScript, Tailwind, tRPC

• Backend: NestJS, TypeScript, Node.js

• Databases: Neo4j (graph relationships), PostgreSQL (structured data)

• AI & Agent Systems: LangGraph, LangChain, OpenAI, Anthropic

• Event Processing: Inngest for reliable async workflows

• Infrastructure: Vercel, Supabase, Clerk, Railway, modern cloud platforms

Technical bar (non-negotiables)

• 5+ years shipping production software, ideally at startups

• Strong full-stack: React, TypeScript, Next.js, NestJS, tRPC

• Comfortable with event-driven architectures and modern cloud infrastructure

• You ship. Not "almost done", you actually ship working software

• Using AI tools daily to build faster (Claude, Cursor, v0, etc.)

• Work autonomously without hand-holding

The real signal

• You've been building things since you were young because you couldn't help yourself

• Genuinely curious about AI—experimenting with LangGraph, agent architectures, not just using ChatGPT

• Strong opinions about code quality, pragmatic about when to move fast

• You care about solving the problem, not just playing with cool tech

• "We're not sure yet" excites you, doesn't scare you

• You want to be part of something from day one

Bonus points

• GitHub with real projects, AI-native products, or open source contributions

• Experience with Neo4j or other graph databases in production

• Built event-driven systems at scale (Inngest, Temporal, or similar)

• Early-stage startup battle scars

• You have taste—you know what good software feels like

• Real impact: Shape the architecture. Work with customers directly. Watch companies change how they operate because of what you built.

• Compensation: €60-80K base (early-stage, not BigTech) + meaningful options + Dutch benefits. This is a bet on upside, not a cash-maximizing move.

• Team: Small, direct, no bullshit. Fast decisions. Real autonomy. When we ship big, we celebrate bigger.

• Location: On-site in Rotterdam (building together matters). Flexible for remote sprints.

❌ Outside EU / can't relocate to Rotterdam

❌ Less than 4 years production experience

❌ Want remote-first or maximum cash compensation now

❌ Prefer clear roadmaps and established processes

❌ Need direction every day

This is hard: You'll wear multiple hats. Things will change. We push hard (and celebrate harder when we ship). Early-stage chaos—no playbooks, you help write them.

But if you're the right person: You'll have more ownership, more impact, and more growth in 12 months than most engineers get in 5 years at a big company.

The workforce intelligence market is exploding. AI made this possible, but most tools are just ChatGPT wrappers slapped onto org charts.

We're different:

• Real graph-based understanding of organizational structure

• Multi-agent AI systems that actually solve strategic problems

• Customers already paying (this isn't a pitch deck, it's a product)

• Small team moving incredibly fast

The window is narrow. Be founding engineer #1 or join after we've figured it all out. Your call.

Send us three things:

1. Something you've built (GitHub, live project, whatever you're proud of)

2. Why this problem matters to you (not why AI is cool—why this problem)

3. What you're currently building/learning (show us you're a builder)

Be real. Be direct. No cover letter theater. Show us you're a builder who gives a shit.

This role is for Everday, a Builders portfolio company. Hiring is managed by the Everday team.