Senior Ruby-on-Rails Engineer (Full Remote - UK)

Senior Ruby‑on‑Rails Engineer (Full Remote – UK)

Apply for the Senior Ruby‑on‑Rails Engineer (Full Remote – UK) role at EverAI, a rapidly growing AI company with over 35 million users worldwide.

Our Vision & Products

🚀 EverAI — Building the Future of AI Companionship
Genre‑defining AI companions powered by a proprietary moderation system, EverGuard, that keeps everything safe, ethical, and human‑first.

Your Role

Our tech team is expanding to support an ambitious roadmap. We need an experienced Senior Software Engineer (Back‑end / Ruby) to help build and scale our product, define technical solutions, and experiment with new ideas.

Responsibilities

• Interact with the Product Manager to review project specs
• Prepare integration plans, break‑downs, and estimations
• Hands‑on code implementation, PRs, code reviews, testing, and other delivery tasks
• Collaborate with the product team, web developers, SRE, and data scientists

Your Qualifications

Must‑haves

• 5+ years of experience as a back‑end or full‑stack engineer with recent Ruby‑on‑Rails work
• Experience in tech scale‑ups or fast‑paced environments
• Code used by thousands of monthly users on large‑scale products
• English fluency, strong communication and collaboration skills
• Ownership mindset – you take full responsibility for your work
• Fast‑moving doer mindset – balancing craftsmanship and velocity
• User‑centricity and obsession with exceptional user experience
• Comfortable building uncensored AI products (NSFW) and content

Bonus Points

• Data science or generative AI experience (NLP, ML, MLOps)
• Working with globally distributed teams

Why EverAI?

• Exponential growth: from 35 M+ users to 100 M and beyond
• Track record of category‑creating innovation and world‑first AI applications
• Global impact with top‑tier user growth
• Proven leadership of senior team that launched, scaled, and exited multiple scale‑ups
• 100% remote, elite remote team of Tier 1 talent
• Ethical core governed by EverGuard AI moderation technology

What We Offer

• Contract type: B2B preferred but flexible
• Fully remote work
• 4 weeks (20 working days) paid time off per year
• Annual gathering: yearly in‑person meetup
• Health & wellness support: up to $200 per year for wellbeing expenses plus unlimited 1:1 sessions with psychologists
• Co‑working space budget: up to twice per month (35 EUR/40 USD per visit)
• Learning budget: funds for courses, books, conferences, events, or certifications
• Equipment: company laptop provided and monitor budget up to $250
• AI tools access: premium access to ChatGPT, Cursor, Hugging Face and others

How to Apply

Reach out and apply if you’re an exceptional talent ready to ship world‑first AI products at scale.