Senior Ruby on Rails Developer

LLInformatics is a forward-thinking IT consulting firm, trusted by clients across Europe and North America. We specialize in delivering complex projects on time, with exceptional quality, and always meeting the highest compliance standards. Our remote-first team of 130+ experts is passionate about building cutting-edge digital products that drive real results. With a focus on data-driven decisions, measurable outcomes, and a strategic mindset, we’re raising the bar in our industry—backed by a strong, collaborative work culture that fuels our success.

Your Tasks and Responsibilities:

• Design, develop, and own complex backend features and APIs using Ruby on Rails.
• Architect scalable, reliable, and maintainable backend services.
• Collaborate closely with Product, QA, DevOps, and business stakeholders to translate requirements into technical solutions.
• Drive improvements in system performance, scalability, reliability, and engineering quality.
• Write clean, production-grade code with strong automated test coverage.
• Review code, establish engineering standards, and contribute to architectural decisions.
• Troubleshoot complex production issues and support stable, efficient deployments.
• Participate in agile delivery processes and drive continuous improvement initiatives.
• Mentor other engineers and actively contribute to knowledge sharing within the team.

Requirements:

• 6+ years of commercial Ruby on Rails experience.
• Strong experience designing and building production-grade APIs and backend systems.
• Advanced knowledge of PostgreSQL, database optimization, and data modeling.
• Strong experience with RSpec, automated testing, and engineering best practices.
• Experience with AWS and/or Heroku.
• Good understanding of distributed systems, scalability, and system architecture.
• Experience working in Agile environments.
• Strong communication skills in English (B2+).

Nice to Have:

• Technical leadership or mentoring experience.
• Experience with observability, monitoring, and performance optimization.
• Experience participating in architectural discussions and technical decision-making.
• Experience working directly with international stakeholders.

Why join us?

• Flexible Working Hours – We focus on results and value ownership of your time.
• Work from Anywhere – 100% remote within the EU, hybrid, or office-based work.
• Comprehensive Onboarding – Structured support from day one.
• Flat Structure – Initiative and open communication are encouraged.
• Positive Company Culture & Team Spirit.
• Modern Work Methods – Cutting-edge project management techniques.
• Transparent Communication – Regular feedback sessions and mentor support.
• Top-Notch Equipment – MacBook provided.
• Weekly English Lessons – Optional classes with a native speaker.