Senior Ruby on Rails Backend Engineer (Remote Europe)

Salve.Inno Consulting; Kraków; Remote; PLN 200,000 - 320,000; Full time

Benefits offered by this job

Fully remote working arrangement from

B2B contract

20 working days of paid time off

Annual in-person company gathering

Health and wellbeing support

Learning and development budget

Company laptop and equipment

Access to premium AI tools

Direct collaboration with CTO/TechLead

Influence technical decisions

Hands-on AI product work

Autonomy in fast-growing environment

Additional benefits

Job summary

Salve.Inno Consulting is seeking an experienced Senior Backend Engineer specialising in Ruby on Rails to join its R&D and Engineering team. You will design, develop and scale core backend applications supporting AI-powered products, working closely with CTO, Tech Lead, Product Managers and SREs.

You will own complex backend features end-to-end, contribute to architectural decisions and help deliver reliable, scalable software in a fast-paced, fully remote setup across Europe.

Qualifications

• Minimum 5 years of commercial experience as a Backend or Full-Stack Software Engineer.
• Strong, recent hands-on experience developing and maintaining production applications using Ruby on Rails.
• Proven ability to independently design, develop and implement complex backend features.
• Experience working on applications serving thousands or more monthly active users.
• Strong understanding of scalable backend architecture, application performance and system reliability.
• Demonstrated experience delivering features throughout the full software development lifecycle, including requirements analysis, implementation, testing and production deployment.
• Experience working in technology startups, scale-ups or similarly fast-paced, agile engineering environments.
• Ability to adapt to changing priorities, manage deadlines and maintain high engineering standards.
• Solid understanding of software engineering principles, clean code practices and automated testing.
• Experience participating in code reviews and collaborating with cross-functional development teams.
• Strong analytical thinking, troubleshooting skills and a proactive approach to technical problem-solving.
• Ability to work independently, take ownership of technical deliverables and contribute to engineering decisions.
• Excellent written and spoken English communication skills.
• Experience collaborating effectively with international, fully remote teams.
• Must be based in Europe and available to work with CET ±3 hours overlap.

Responsibilities

• Design, develop and maintain scalable backend applications using Ruby on Rails.
• Collaborate with Product Managers and engineering stakeholders to analyse requirements and translate product specifications into technical solutions.
• Prepare technical integration plans, development breakdowns and accurate effort estimates.
• Develop new features and continuously improve existing application functionality.
• Write clean, efficient, maintainable and well-tested production code.
• Participate in pull requests, peer code reviews and software testing to maintain high engineering standards.
• Troubleshoot application issues and implement improvements to performance, reliability and scalability.
• Contribute to architectural discussions, technical decision-making and product roadmap planning.
• Take ownership of complex backend features throughout the complete development lifecycle, from initial requirements to production deployment.
• Identify and resolve technical bottlenecks, ensuring applications remain stable as user demand grows.
• Explore new technologies, frameworks and development approaches to improve product functionality and user experience.
• Collaborate with distributed engineering, infrastructure, SRE and product teams to deliver high-quality software.
• Contribute to continuous improvement initiatives across development processes, code quality and system architecture.

Skills

5+ years experience

Ruby on Rails

Backend design

Scalable architecture

Production-grade software

English communication

Startup/agile environment

Independent ownership

Job description

Salve.Inno Consulting is seeking an experienced Senior Backend Engineer specialising in Ruby on Rails to join its R&D and Engineering team. You will design, develop and scale core backend applications supporting AI-powered products, working closely with CTO, Tech Lead, Product Managers and SREs.

You will own complex backend features end-to-end, contribute to architectural decisions and help deliver reliable, scalable software in a fast-paced, fully remote setup across Europe.