Senior Ruby on Rails Developer

• 5+ years of commercial experience working with Ruby and Ruby on Rails
• Strong expertise in relational databases such as PostgreSQL, with practical experience using non-relational databases, caching systems and message brokers
• Proven experience with client communication methods including REST API and WebSockets, plus authentication approaches such as JWT, cookie-based authentication and OAuth
• Hands-on experience with CI/CD pipelines, deployment tools, Docker and Git
• Solid understanding of design patterns and SOLID principles applied in practice
• Experience writing and maintaining automated tests using RSpec or similar frameworks
• Ability to contribute to architectural decisions based on business, functional and non-functional requirements, with consideration for scalability
• Daily use of AI tools and the ability to critically assess AI-generated code
• Enthusiasm for code review, both providing and receiving constructive feedback
• Fluent English with confidence communicating directly with clients during calls, demos and technical discussions
• Fluent Polish for internal team communication
• Genuine interest in HealthTech and working on projects where quality, security and compliance are essential

Desirable but not essential:

• Experience with a JavaScript framework such as Vue or React
• Familiarity with AWS or a comparable cloud platform
• Knowledge of web servers like Nginx
• HealthTech or pharmacy sector experience, including HIPAA, e-prescribing, insurance or FHIR
• Background working embedded with clients, in consulting, as a Fractional Developer, or in a startup environment where you managed multiple responsibilities

This role may not suit you if:

• You consider a task complete once the code runs, rather than when it's tested, reviewed and maintainable long-term
• You prefer a consistent stack and workflow that remains unchanged for years, as this team regularly adopts new tools and approaches
• You'd rather delegate responsibility for what gets merged - here, AI may draft code, but you're accountable for what's approved

Location: Wrocław

Contract Type: B2B

• Work on compliant, production-ready software for healthcare companies worldwide
• Join an AI-first team that actively tests and adopts new tools and workflows
• Contribute to both client projects and in-house products, including open-source work
• Communicate directly with clients and shape technical solutions from concept to delivery
• Develop your skills in a sector where quality, security and compliance truly matter

Company Overview

Our client is a Wrocław-based software team specialising in building solutions for healthcare companies across the globe. They support HealthTech startups and scaleups in transforming concepts into compliant, production-ready products. The team also develops their own products in wearables and medical data integration, with a portion of this work available as open source. Operating with an AI-first approach, they integrate AI into everyday development and delivery processes, continuously testing new tools, agents and workflows to improve how they build software.

They're looking for a Senior Ruby on Rails Developer to join their team in Wrocław. This is an opportunity to work on meaningful projects in a sector where technical precision and compliance are critical, while being part of a team that embraces change and continuously evolves its approach to software development.

Position Overview

As a Senior Ruby on Rails Developer, you'll design and build web applications for healthcare clients, working across the full development lifecycle. You'll collaborate with cross-functional teams to deliver new features, contribute to architectural decisions, and communicate directly with clients to clarify requirements and present solutions. This role requires someone who can critically review AI-generated code, maintain high standards through code review, and adapt to evolving tools and workflows as the team discovers better ways to build software.