Senior Fullstack Developer (Ruby on Rails + React)

Who we are - and why you might want to join us?

We’re a software development company based in Kraków, working with international clients from industries like foodtech, construction, fintech, real estate, or healthcare. Over the last 15+ years, we’ve delivered 150+ digital products - from web and mobile apps to complex platforms and MVPs.

We work in small, cross-functional teams, combining business and tech expertise. Some of us have been here for 5, 8, even 13 years - and we’re still growing!

What connects us? A pragmatic approach to software development, a curiosity for new technologies, and a culture of collaboration. We value autonomy, clear communication, and doing things the right way.

👉 Looking for a place where you can grow, have a real impact, and enjoy what you do?

Join us and be the architect of our success stories! 👈

Senior Fullstack Developer (Ruby on Rails + React)

[Kraków, Hybrid work]

Key Responsibilities:

1. Develop new features
2. Maintain applications by monitoring, updating, and repairing existing solutions
3. Design and implement cutting-edge solutions that have a real impact on the market
4. Test and debug applications
5. Collaborate with a team of developers, QA engineers, and UX/UI designers
6. Work with databases: design and implement schemas, while ensuring their security and performance
7. Share knowledge and promote best programming practices
8. Participate in strategic senior meetings and influence the company's technological development
9. Act as a technical project leader and collaborate with project managers

Key Qualifications:

1. Strong knowledge of Ruby on Rails and Ruby
2. Experience in writing unit tests (RSpec)
3. Proficiency in JavaScript, with experience in React.js or Vue.js
4. Familiarity with Git and SQL
5. Communicative English skills (minimum B2+)
6. A strong sense of responsibility and independence
7. Proactivity and initiative
8. Strategic thinking and long-term planning skills
9. Commitment to personal development and interest in analyzing new technology trends

A link to your code repository (this is very important to us!)

Nice to have:

1. Experience with GraphQL, Node.js, and microservices
2. Previous experience as a Project Team Lead
3. Familiarity with AWS and CI/CD (e.g., GitLab CI)
4. Experience with integrations involving LLM (Large Language Model) technologies

Why Join Railwaymen?

💼 Work that matters

Work alongside around 20 Ruby on Rails developers on a variety of projects (fintech, foodtech, construction, social, and more) → railwaymen.org/case-studies

High impact on technology and project development

Freedom to act and strong support in career growth

Long-term cooperation

Paid days off (also available for B2B contracts)

Smooth onboarding and clearly defined growth paths

👥 A team you can count on

Cross-functional collaboration

1:1 meetings, feedback culture & mentoring

📚 Learning built in

Access to internal library & knowledge sharing

Support for continuous upskilling

Round Table sessions to exchange ideas

🎉 Life beyond code

Private medical care & sports subscription

Rooftop office view over Kraków

Sound like something for you? Send us your CV and a link to your code - we’re excited to meet you!

What’s next?

1. If your profile aligns with our expectations, we’ll reach out to schedule an online interview.
2. Selected candidates will move on to a technical interview with CTO, to verify specialist knowledge.
3. Next, you’ll meet with our COO (online or in person) to assess compatibility and learn more about the company.
4. After that, we’ll make a decision and send you a cooperation offer with all the details.
5. Welcome aboard!

//In some cases, an additional step in the recruitment process may be required//

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