# Expert Software Developer (Ruby on Rails & React) - Freelancer

> Monterail · Wrocław, Poland (Remote) · — · Posted 2026-03-23

**Workplace:** remote

**Department:** Development

## Description

We’re specifically looking for a Principal Software Developer (Ruby on Rails & React) - Freelancer

### What We’re Looking For

-   8+ years of experience in software development, with deep, senior-level expertise in Ruby on Rails and React
-   A proven senior profile,  someone who doesn’t just execute, but defines direction, shapes systems, and confidently makes architectural and product decisions
-   Strong sense of end-to-end ownership: you are comfortable setting the roadmap, identifying gaps, and continuously building on top of existing systems without needing close guidance
-   A senior-level commitment to quality, with extensive experience designing and maintaining robust test suites; testing is a core part of how you build, not an afterthought
-   Clear and demonstrated focus on admin panels and internal tooling, with the maturity to design for usability, maintainability, and long-term evolution (not user-facing products)
-   Experience working closely with internal stakeholders, with the communication skills and seniority to translate needs into well-structured solutions across varying levels of complexity
-   Background in smaller-scale environments (e.g., internal tools, limited user bases), where pragmatic decision-making and thoughtful trade-offs are more important than hyper-scale concerns
-   A self-directed, senior mindset, you bring structure to ambiguity, operate independently, and take responsibility for both the technical direction and its outcomes  
    

### What do we mean by freelance?

Read more at [Monterail Tech Network](https://www.monterail.com/more/monterail-tech-network)

## Apply

[Apply at Monterail](https://apply.workable.com/monterail/j/48C416706A/apply)

---
Powered by [Workable](https://www.workable.com)