# Senior Full-Stack Engineer (Ruby on Rails)

> Spark Solutions · Warsaw, Poland (Hybrid) · — · Posted 2026-01-13

**Salary:** USD 4,000–5,000

**Workplace:** hybrid

## Description

### Senior Ruby on Rails Developer

Join our team and work with the best and most ambitious Ecommerce professionals around the world in our Warsaw HQ or 100% remotely.

**Spark Solutions** is a software house working for global clients (mostly the US, UK and Canada) – ranging from **startups** to large **Fortune 500** corporations. Because of years of our combined Ecommerce experience our team is in a unique position to **architect, design, deliver and maintain** world-class solutions boosting our clients’ businesses.

We are also the [**Spree Commerce**](https://spreecommerce.org/) open-source Core Team. Join us and contribute along with the community of thousands of developers.

**We need you** to gather technical requirements, architect solutions, estimate timelines, deliver and further develop applications, communicate and investigate, finally… celebrate, reward and promote.

We believe in **TDD**, **agile delivery,** and **teamwork** – automated testing, code reviews, pair programming, professional QA and PM support for our development teams, daily standups, staying in touch using slack or Jira. This way we feel comfortable about our team’s wellbeing and end results for the clients.

## Requirements

### Join us if you:

-   know and use **Ruby on Rails** and **React.js** in commercial projects for **at least 2 years**
-   feel comfortable architecting complex server-side logic and handling data-intensive tasks
-   have a "get things done" mindset and take full responsibility for your tasks from start to finish
-   have experience or interest in Native integrations: since we are moving towards more native features, experience in this area is a huge plus.
-   practice TDD and care deeply about code maintainability
-   are proactive in communication – you don't wait for a "nudge" to provide updates or flag blockers
-   are fluent in **SQL**
-   communicate fluently in **English**
-   work in **agile/scrum**
-   have been working with **3rd party APIs**, performed **code reviews** and used **Docker**

### Nice to haves:

-   [**Spree Commerce**](https://spreecommerce.org/) – our ecommerce framework of choice which you’ll have to get familiar with
-   Experience **leading a team**
-   **Contributions to open-source projects**
-   **Ecommerce** experience
-   familiarity with **ElasticSearch**
-   familiarity with **Hotwire**

## Benefits

### **We offer you:**

-   Monthly compensation between **4000 - 5000 USD** (to your bank account)
-   You choose where you work from

-   **100% Remote Work** 
-   Our spacious and fully equipped **Warsaw** **office** 2 minutes from Metro Świętokrzyska subway station

-   Wellbeing

-   **20 days of paid annual leave**, earned proportionally each month.
-   **Paid sick leave**

-   Projects

-   Exciting **projects for international clients**
-   **Paid Open source work**
-   Agile project management and QA support

-   Toolset

-   **Best available tools to work with** – IDEs, code editors licenses, and other tools
-   **Modern project tech stacks** – we constantly upgrade our projects to keep up with the newest versions of Rails and Ruby

-   Growth & Impact

-   **Peer-to-peer learning:** Work closely with our Open Source Core Team and high-level experts 
-   **Code Review Culture:** We treat every PR as a chance to share knowledge and maintain top-notch standards.
-   **Real Influence:** You're not just a coder; you participate in architectural decisions and technical strategy.
-   **Technical Autonomy:** We encourage choosing the best tools for the job and staying up to date with the newest Ruby/Rails versions.

## Apply

[Apply at Spark Solutions](https://apply.workable.com/spark-solutions/j/4D51B2B26B/apply)

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