Senior Ruby on Rails Engineer — Remote & Scalable AI Platform

David Kennedy Recruitment; United States; Remote; USD 101,000 - 146,000; Full time

Benefits offered by this job

Remote work

PTO 20 days

Annual gathering

Health and wellbeing support

Dev budget

Laptop provided

AI tools access

Job summary

David Kennedy Recruitment is partnering with a fast-growing AI technology company to hire a Senior Ruby on Rails Engineer. This hands-on role designs, builds and scales core backend applications, collaborating with CTO, Tech Lead, Product Managers and SREs to deliver robust systems.

You will work remotely from Europe on a B2B contract, joining a distributed engineering team, tackling reliability, performance and scalability while contributing to product roadmap decisions.

Qualifications

• 5+ years of commercial Ruby on Rails backend experience.
• Ability to design and implement complex backend features.
• Experience with scalable, reliable systems serving thousands of users.
• Experience in startups or scale-ups with agile priorities.
• Excellent spoken and written English; comfortable with international remote teams.
• Based in Europe with CET ±3 hours overlap.
• Comfort working on AI companionship products with NSFW content.

Responsibilities

• Design, develop and maintain scalable backend applications using Ruby on Rails.
• Collaborate with Product Managers to translate requirements into technical solutions.
• Prepare technical integration plans, development breakdowns and effort estimates.
• Implement new features and improve platform functionality.
• Write clean, well-tested production code and participate in code reviews.
• Troubleshoot issues and improve reliability, performance and scalability.
• Contribute to technical decisions and product roadmap discussions.
• Experiment with new technologies to enhance product functionality.

Skills

Ruby on Rails

Backend development

Scalability

Distributed systems

English communication

Job description

David Kennedy Recruitment is partnering with a fast-growing AI technology company to hire a Senior Ruby on Rails Engineer. This hands-on role designs, builds and scales core backend applications, collaborating with CTO, Tech Lead, Product Managers and SREs to deliver robust systems.

You will work remotely from Europe on a B2B contract, joining a distributed engineering team, tackling reliability, performance and scalability while contributing to product roadmap decisions.