Intermediate Front End Software Engineer

Role Description

Zipline is looking for a Front-End Engineer who lives at the intersection of design and code. You won't just implement specs, you'll shape the UI itself, building directly in code with the same care a designer brings to a canvas. You'll work closely with our product, engineering, and design teams to deliver polished, performant interfaces across our platform. Your primary focus will be front-end development using Ruby on Rails, Hotwire (Turbo & Stimulus), and modern JavaScript, with a strong secondary focus on user experience and design craft.

What You’ll Do

• Collaborate with engineers, designers, and product managers to build functional, beautiful user interfaces.
• Develop, enhance, and maintain responsive web applications using Ruby on Rails, Turbo, Stimulus, and JavaScript.
• Contribute to and evolve Zipline's design system with View Components, treating it as living code.
• Build and iterate on prototypes directly in code, using the design system as your foundation.
• Use AI-assisted development tools (e.g. Claude Code, Copilot) as a natural part of your workflow to move faster without sacrificing quality.
• Write clean, maintainable, and efficient code that scales to keep large teams productive.
• Work with other developers to improve usability, accessibility, and performance.
• Diagnose and resolve front-end issues to provide a smooth user experience.
• Optimize applications for maximum speed and design mobile-first features, including Turbo Native mobile experiences.
• Write clear functional requirement documents and guides that other engineers can pick up and run with.
• Stay current on front-end tooling, patterns, and AI-augmented development practices.

Qualifications

• 3+ years experience in a front-end developer role.
• Professional experience with Ruby on Rails, JavaScript, CSS, and HTML at scale.
• Hands-on experience with Turbo, Stimulus, or the broader Hotwire ecosystem.
• You can look at a UI, see what's off, and fix it in code without needing a designer to redline it for you.
• Experience building within and contributing to a design system with View Components and Lookbook.
• Comfort using AI coding tools as part of your daily development workflow.
• A problem-solving mindset that finds elegant solutions when working within the constraints of a design system.
• Refined time management and proactive communication skills that let you do your best work in an asynchronous, fully remote environment.

Requirements

• Experience with Turbo Native (iOS/Android).
• Experience with React or Vue.js component architectures.
• A passion for teaching and mentoring other engineers on front-end craft.
• Familiarity with prompt engineering or building AI-augmented features into product UIs.
• Retail industry experience.

Benefits

• Remote-first culture: Join a high performing, fully remote team and work where you're comfortable.
• Stock Options: Get meaningful ownership in a fast-growing, venture-backed company shaping the future of retail.
• Time off: Flexible time-off policy gives you the freedom to take breaks when you need them.
• Monthly coffee-shop stipend to switch up your workspace.
• Fully paid one-month sabbatical after five years of service.
• World-class medical, dental, and vision policies.
• Annual company off-sites in fun locations.
• Quarterly paid day off to volunteer for a nonprofit of your choice.
• Unlimited access to our Udemy Business account for continuous learning.
• Work with kind, collaborative teammates who care about doing meaningful work.