Senior Ruby On Rails Engineer (freelance)

At Blazity, we are a team of React.js and Next.js experts focused on creating API-first products. We build long-term partnerships with our clients, serving as their trusted development partners. Our work involves optimizing apps, stores, and websites, implementing new features, and automating workflows to deliver outstanding results.

About the Project

We’re looking for a Senior Ruby On Rails Engineer for a freelance engagement. The initial phase is a short-term assignment, approximately one week of work, focused on a discovery workshop and audit of the current system. This role could evolve into a long-term collaboration.

About the Discovery Workshop

This engagement will kick off with a discovery workshop aimed at auditing the current Ruby on Rails setup. The objectives of this workshop are to:

• Demonstrate technical maturity and understanding of the problem

• Present a clear modernization roadmap for RoR and Infra

• Win the deal for the full implementation phase

  
  

The selected architect will play a key role in leading the workshop, drawing the roadmap, and ideally supporting the next-stage recruitment for implementation roles if the project proceeds.

Our requirements

• Proven experience as a Senior Ruby On Rails Engineer in a consulting role

• Deep understanding of Rails architecture, especially in large/multi-app environments

• Strong track record in:

  • Upgrading legacy Rails applications

  • Architecting scalable and maintainable systems

  • Defining and communicating technical roadmaps

• Excellent communication skills with stakeholders and technical teams

• Ability to support or advise on technical team composition and recruitment

• Freelance availability for an initial 1-week engagement, with interest in possible long-term cooperation

  
  

Nice to have:

• Solid experience with AWS, particularly ECS, EC2, and ALB

• Familiarity with containerization and modern CI/CD practices

Scope of responsibilities

• Co-lead the discovery workshop alongside internal and Blazity team members

• Audit existing Ruby on Rails applications

• Develop and present a comprehensive technical roadmap covering upgrading Ruby and Rails versions

• Support Blazity in strategic positioning for the implementation phase

• Optionally assist in recruitment or team planning for the long-term build-out phase

Tech Stack

• Ruby on Rails

• RabbitMQ, Kafka

• PostgreSQL (RDS)

What we offer

What Makes Us Special?

📈 Our team has a genuine impact on the company’s decisions and direction.

✨ No bureaucracy – we keep things simple and efficient.

🗺️ Remote work from Poland

⏳ Flexible working hours – fit your schedule to your life.

🍕 Fun social events to connect with your teammates.

🤝 We value feedback and foster an open, supportive environment.2B