This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior UI Developer

Salary

Under €6,500/month

Company Description

North is a Barcelona-based digital product studio that designs and ships end-to-end digital experiences for world-class brands including Cupra, SEAT, CaixaBank, Heura, and Massimo Dutti. Specializing in strategy-led development, North builds enterprise-grade websites that blend high-performance engineering with exceptional UI/UX craft across automotive, fintech, and retail sectors.

Join North as a freelance Senior UI Developer to lead the frontend execution of enterprise marketing websites. You will own the integration of custom WordPress themes with React.js components, ensuring seamless performance across global regions. This 2-3 month contract focuses on building scalable, SEO-optimized architectures for high-profile clients in a craft-driven studio environment.

Location

Barcelona, Spain

Why this role is remarkable

- Work with an elite client roster including major general brands like SEAT, Cupra, and CaixaBank on high-visibility digital projects.

- Operate within a studio culture that prioritizes engineering craft and design excellence over cookie-cutter marketing solutions.

- Own the technical implementation of complex, multi-region architectures including geo-location detection and custom subdomain-based content delivery.

What You Will Do

- Develop custom WordPress themes using Gutenberg blocks and ACF-driven content architectures to empower marketing teams with self-serve templates.

- Build reusable, high-performance React.js components and frontend architecture integrated with modern CSS frameworks like Tailwind and SCSS.

- Implement and manage enterprise-grade integrations including Marketo, Salesforce,



GTM, and GA4 to drive business-critical marketing analytics and lead generation.

The ideal candidate

- Over 5 years of UI development experience, specifically featuring 3 years of deep expertise in both WordPress and React.js.

- Proven track record of delivering enterprise-scale marketing websites with a focus on SEO, Core Web Vitals, and WCAG accessibility.

- Strong proficiency in TypeScript and the ability to manage production environments using Cloudflare, cPanel infrastructure, and performance optimization tools.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

- Jack's an AI agent for job searching and career coaching. He works for you.

- Jill is the AI recruiter working for the company. She recruits from Jack's network.

- If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.

Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the .

We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

📌 Senior UI Developer (under €6. ) at North (Barcelona)
🏢 Jack u0026amp; Jill
📍 Barcelona