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

Role Summary

• •Join as a Senior Software Engineer focusing on back-end development with Ruby on Rails in a fully remote role based in Spain.
• •Collaborate closely with the Tech Lead, co-founder CTO, product managers, and cross-functional teams including web developers, SRE, and data scientists.
• •Contribute to defining the technical roadmap, implement features, conduct code reviews, and ensure high-quality software delivery.
• •Work on a large-scale AI companionship platform with millions of users, emphasizing safe, ethical, and user-centric product development.
• •Operate in a fast-paced, agile environment with ownership, strong communication, and a doer mindset highly valued.

About the Company

• •EverAI is a fast-growing AI company with 40 million users in 2 years, aiming for 100M and beyond, focused on AI companionship products.
• •The company culture values ownership, velocity, and radical creativity, with a 100% remote elite team from Tier 1 tech companies.
• •Led by a proven executive team with multiple successful scale-ups, IPOs, and exits, emphasizing innovation and ethical AI development.
• •EverAI operates in the AI and generative AI space, creating category-defining products with proprietary AI moderation technology (EverGuard).
• •A relatively small but highly experienced team of about 75 people, combining entrepreneurial spirit with tech scale-up agility.

What You Should Know

• •Ideal candidates have 5+ years experience in back-end or full-stack roles with strong Ruby on Rails expertise, preferably in scale-ups.
• •Applicants should be comfortable working on NSFW content and uncensored AI models within an ethical framework.
• •The role offers significant growth opportunities to influence product direction and experiment with new ideas in AI technology.
• •Work environment is fully remote with flexible work location, supported by benefits like paid time off, wellness support, and learning budgets.
• •Candidates must have strong English communication skills, a user-centric mindset, and thrive in a fast-moving, ownership-driven culture.

Key Required Skills