Full Stack Rails Engineer

Were looking for a Full-Stack Rails Engineer who loves turning ideas into measurable results. Youll build and iterate on features and experiments that directly improve how designers discover, use, and grow with DesignFiles.

About Us:

Were building the go-to platform for interior designers to manage every part of their businessfrom concept to completion. More than 5,500 customers already rely on our tools, and our remote team of 30+ is growing. If you care about building great products that solve real problems, wed love to meet you.

What You'll Do:

As a Growth-Focused Full-Stack Engineer, youll work at the intersection of engineering, product, and growth. Youll ship features and run experiments that directly impact activation, retention, and monetization. Your work wont just be about building itll be about measuring, learning, and improving.

• Run experiments that improve activation, retention, and monetization.
• Collaborate with product, design, and marketing to refine onboarding flows, funnels, and engagement touchpoints.
• Use data to uncover friction in the user journey and ship small, high-impact improvements.
• Take ownership of experiments end-to-end: scope, build, ship, measure, iterate.
• Refine existing features to boost adoption and usability.
• Contribute to a culture of clean code, rapid iteration, and measurable outcomes.
• Participate in daily standups, sprint planning, and retrospectives.

What We're Looking For:

• 5+ years of hands-on Ruby on Rails experience with strong full-stack skills.
• Proficiency with JavaScript, Stimulus.js, CSS, RSpec, SQL, Docker, and Unix Shell.
• Experience with A/B testing, growth-driven development, or funnel optimization.
• Strong problem-solving skills and the ability to self-unblock.
• Fluent English and solid communication skills.
• Collaborative mindset and comfort with feedback and code reviews.

This is a full-time, 40-hour/week remote contract role. Were specifically seeking candidates (not agencies) based within 2 hours of Central European Time (CET).

If youve built experiments or user-facing improvements that made a measurable impact, wed love to talk.