> Markdown version of [/jobs/ext/2995600-senior-ror-fullstack-engineer](https://www.wearedevelopers.com/jobs/ext/2995600-senior-ror-fullstack-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Senior RoR Fullstack engineer

- **Company:** Flea Software
- **Location:** Berlin, Germany
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Ruby on Rails, Software Engineering
- **Published:** September 19, 2026
- **Apply:** https://www.adzuna.de/details/5889506617

## About the Role

* A genuine passion for leadership and/or firsthand experience with the problem we solve.
 * Hands-on, pragmatic, and capable of expanding the MVP to a full product.
 * Understanding and embracing the startup journey, with all its potential rewards and lack of corporate security.

## Required Skills

 * 3-10 years of experience in software development.
 * Proficiency in Ruby on Rails and full-stack development.

## Description

As our technical Co-Founder, you'll play a pivotal role in bringing Flea to life and transforming millions of dull 1:1s into meaningful meetings that drive engagement, productivity, and retention. You will have the opportunity to shape the tech stack and architecture according to your expertise and preferences.
## Responsibilities

 * Expand our MVP into a full product.
 * Collaborate closely with the founding team to iterate on our MVP and prove traction and engagement.
 * Develop a working sales funnel.
 * Contribute to the vision of developing Flea into a holistic AI-powered leadership enablement platform.