Senior Front-end Developer

One Design Co•Chicago, IL

2d•Hybrid

About The Position

We’re looking for a senior front-end web developer who cares deeply about the interactive details — design, animation, and behavior — that bring a brand to life. You’ll join our design-driven team building custom websites from scratch for interesting clients. You will lead end-to-end website development, choosing the appropriate tech stack (often Craft CMS), establishing technical architecture, crafting intuitive content authoring experiences, and writing resilient front-end code to allow clients to easily create new pages, and manage and evolve their sites post-launch. Working closely with designers, content strategists, and project managers, you'll turn designs into fast, accessible, responsive, and animated websites. You’ll contribute throughout the project lifecycle — from initial strategy, to wireframe and design reviews, technical architecture, front-end development, interactions and animations, to testing and final quality assurance. You’ll also collaborate with your peers on the development team to improve our processes and perform regular maintenance and enhancements to hosted client sites.

Requirements

3+ years of experience in an agency or similar environment
Strong portfolio demonstrating attention to craft, detail, and design-led work
Deep appreciation for design, branding, and the role of front-end in shaping user experience
Passion for refined interfaces, thoughtful animation, and interactive experiences
Experience building modular systems with a CMS and reusable components
Mobile-first mindset with solid knowledge of common cross-browser issues
Strong understanding of web performance, accessibility, and SEO best practices
Familiar with WCAG AA accessibility standards
Experience or Interest in using AI to enhance the velocity of development or open up new possibilities
Comfortable working across multiple projects and navigating tight timelines
Excellent communicator who collaborates well with designers and other developers
Curious, self-motivated, and committed to continuous learning and improvement

Nice To Haves

Experience working with Craft CMS, Shopify, Wordpress, or Astro
Background in design or motion
Experience with animation libraries like GSAP or Framer Motion
Experience implementing Lottie or Rive animations
Familiarity with TailwindCSS and BEM methodology
Experience with PHP (Craft, WordPress, or Laravel)
Experience with front-end frameworks like React/Next or Vue
Experience with 3D or creative development (three.js, shaders, animations using canvas or WebGL)
Interest in CI/CD or DevOps workflows

Responsibilities

Define technical requirements through research and collaboration with designers and project stakeholders
Lead development on small to large-scale websites as the primary individual contributor
Architect and implement the CMS content editing experience for clients
Translate bespoke design mockups in Figma into modular, reusable front-end component systems
Propose and implement performant animations and interactions that enhance the user experience
Ensure cross-browser compatibility and responsive behavior across devices and platforms
Lead client-facing demos and technical discussions, bridging the gap between technical and non-technical teams
Perform quarterly maintenance to keep projects secure, stable, and up to date
Enhance and extend client sites to meet new business and audience needs
Contribute to internal tools, workflows, and development standards
Support teammates with development challenges