Full Stack Engineer
Reppls
Senior Full Stack Engineer (Go from Engineer to Future CTO)
Remote | Full-time | Europe (Ukraine, Portugal welcome)
Pre-seed startup | Backed by ex-Meta talent
Who are we?We’re a stealth-mode startup born in Palo Alto and led by former Meta talent. We’re on a mission to redefine how AI agents interact with humans by giving them what they desperately lack: contextual memory. Think of us as the brain that powers smarter, more personal AI — and you could be building it with us.
What do we do?We’re developing a shared user knowledge layer — a secure and private platform where AI agents can store and recall individual user insights like dietary preferences, goals, or allergies. This allows them to respond not like bots, but like companions who actually know you.
On top of this platform, we’re building our own voice-first and text-based AI agents.
Why do we do it?Today’s AI assistants are forgetful. We want to fix that.
We believe in a future with always-on, embedded AI agents — in glasses, smart assistants, phones — that remember who you are, what you need, and how you like your coffee.
But none of this is possible without a trusted memory layer. That’s our Essence.
How do we do it?With zero bureaucracy, high speed, and cutting-edge tools:
- Backend: Python (FastAPI, LLMs, Celery), Redis, Kafka, Postgres, Docker
- Frontend: TypeScript, Next.js, MUI
- Infra: AWS, Neo4j (bonus!)
- Culture: Fast, lean, product-obsessed. No middle managers, no bloated processes. Just building.
Two founders and a fire in the belly. One ex-Meta engineer, one operator with startup grit. You’ll be our first engineering hire, joining at ground zero with massive influence on product, culture, and codebase.
We’re not just offering a job — we’re offering a seat at the table.
Why is there a vacancy?Our MVP is taking shape, and interest from investors and early users is heating up. It’s time to bring in a builder who can co-lead the tech and take it to the next level.
Who are we looking for?You’re a senior full stack developer with a hacker mindset, product sense, and leadership potential. Someone who:
- Has 6+ years of hands-on product engineering experience
- Can own both backend and frontend with confidence
- Thrives in chaos, ambiguity, and fast pivots
- Craves building something that doesn’t exist yet
- Wants to shape what we build — not just how
- Expert in Python, especially with FastAPI, LLM integration, Redis, Kafka, Postgres
- Strong in TypeScript, Next.js, MUI
- Experience with Docker, AWS, and production-grade infrastructure
- Bonus points for Neo4j or other graph DBs
- You move fast, make smart trade-offs, and bring product intuition to the table
- Architect and code our platform front-to-back
- Build and train our in-house AI agents
- Deploy secure, scalable infrastructure on AWS
- Collaborate directly with founders on product vision and roadmap
- Be the spark behind our early engineering culture — and possibly grow into our CTO
- 100% remote work setup
- High-impact role from Day 0
- Real ownership, autonomy, and voice in product direction
- Flexible hours — we care about output, not timesheets
- Path to CTO as we scale
- Intro call – Meet Recrucial, our hiring partner
- Founder chat – Talk vision and vibe with the team
- Tech deep dive – Show us how you build and think
- Culture & offer – Let’s make it official
Ready to build AI’s missing memory layer — and maybe become our future CTO?
Apply now. Let’s shape the future together.
