Senior Ruby on Rails Engineer

About the role

David Kennedy Recruitment is working with a fast-growing AI technology company serving millions of users worldwide that is seeking to onboard a Senior Ruby on Rails Engineer to join their R&D / Engineering team.

This is a hands-on individual contributor role, helping design, build and scale core applications while working alongside the CTO, Tech Lead, Product Managers and SREs. The company's products include adult/NSFW content, so candidates must be fully comfortable working on them.

Position: Senior Ruby on Rails Engineer

Location: Europe, Remote

Employment type: B2B engagement

DUTIES AND RESPONSIBILITIES:

Design, develop and maintain scalable backend applications using Ruby on Rails

Collaborate with Product Managers to review requirements and translate specifications into technical solutions

Prepare technical integration plans, development breakdowns and effort estimates

Implement new features and improve existing platform functionality

Write clean, maintainable, well-tested production code

Take part in pull requests, peer code reviews and testing

Troubleshoot application issues and improve reliability, performance and scalability

Contribute to technical decision-making and product roadmap discussions

Experiment with technologies and approaches that improve product functionality and user experience

Work with distributed engineering, infrastructure and product teams

REQUIREMENTS:

5+ years' commercial experience as a Backend or Full-Stack Software Engineer

Strong, recent hands-on Ruby on Rails experience in production

Ability to independently design and implement complex backend features

Experience on applications serving thousands or more monthly active users, with an understanding of building reliable, scalable systems

Experience in technology scale-ups, startups or similarly agile environments, comfortable with changing priorities and tight deadlines

Proven ability to take features from requirements through development, testing and production

Excellent spoken and written English, and comfortable working with international remote teams

Based in Europe, with CET ±3 hours working overlap

Fully comfortable working on AI companionship products involving uncensored and NSFW content

BENEFITS:

100% remote working, with a B2B contract

20 working days of paid time off annually

Annual company gathering

Health and wellbeing support

Learning and professional development budget

Company laptop and equipment support

Access to AI development tools, including Cursor, Claude Code and ChatGPT

Direct collaboration with experienced engineering leadership and the chance to influence technical decisions

And many more!!!

Posting text as published by Davidkennedyrecruitment.

The evidence behind this listing

Workplace

Remote Employer field

Seniority

senior From the job title

Employment type

full time

Location as listed

Paris, 75004, FR; Islington, London, GB; Lisbon, 1150-234, PT; Milan, IT; Rome, IT; Berlin, 10178, DE; Athens, 105 52, GR; Barcelona, 08002, ES; Bari, IT; Split, HR; Copenhagen, DK; Oslo, NO; Tallinn, 10111, EE; Limassol, CY; Budapest, HU; Florence, IT; Amsterdam, 1011 PL, NL; Stockholm, SE; Warsaw, 03, PL; Kraków, 30, PL; Lublin, 20, PL; Opole, 46, PL; Tokyo, 168-0063, JP; Seoul, KR; Beijing, CN; Taipei City, TW; Hong Kong, HK; Chongqing, CN; Bangkok, 10200, TH; Manila, 1001, PH; Kuala Lumpur, 50490, MY; Singapore, SG; Hanoi, VN; Hanover, 30159, DE; Wuhan, CN; Shanghai, CN; Hangzhou, CN; Mumbai, IN; Doha, QA; Tel Aviv-Yafo, IL; Riyadh, SA; Madrid, EMEA, ES

Pay and work authorization

Stated pay

Not stated

Visa sponsorship

Not stated

Security clearance

Not established

Citizenship

Not established