Senior Ruby Engineer
Fully Remote
B2B Contract
Salary up to €105K Annually Gross.
Our client is looking for a Senior Ruby Engineer to join a fast-growing, international technology company building a high-traffic AI-powered consumer product used by millions of users worldwide.
This is a fully remote, hands-on engineering role for someone who enjoys working at scale, taking ownership, and solving challenging backend problems in a fast-moving environment.
What you'll be doing
- Design, build, and maintain scalable backend systems using Ruby on Rails
- Work on high-traffic, production-grade applications serving millions of users
- Contribute to architectural decisions and scaling initiatives
- Identify and solve complex performance and reliability challenges
- Take ownership of features from conception through production
- Collaborate closely with Product, Design, QA, AI, and DevOps teams
- Work in a fast-paced environment where engineers have significant autonomy
- Use modern AI-powered development tools as part of your engineering workflow
What we're looking for
- 5+ years of backend engineering experience
- Strong professional experience with Ruby on Rails
- Experience building and operating high-traffic, scalable production systems
- Strong understanding of web fundamentals, backend architecture, and performance optimisation
- Experience with monolithic architectures and/or scaling challenges
- Proven ability to take ownership and make technical decisions independently
- Experience working in a startup or scale-up environment is highly desirable
- Comfortable collaborating within cross-functional engineering teams
- Strong communication skills in English
- Actively uses AI tools such as ChatGPT, GitHub Copilot, Cursor, Claude, or similar in development
- Comfortable working within CET ±3 hours
Benefits
- Fully remote - work from anywhere within the relevant European time zones
- B2B contract only
- Compensation of up to €105,000 per year
- High-impact work on a product operating at significant international scale
- A highly autonomous environment with real engineering ownership
- Fast-paced, collaborative international team
- Opportunity to work with modern AI technologies and development practices
⚠️ Important
This role involves working on a consumer product that includes adult-oriented/NSFW content. Candidates must be fully comfortable working professionally in this environment.
If you're a Senior Ruby Engineer who enjoys scale, ownership, autonomy, and fast-moving product environments, we'd love to hear from you.
