UI/UX Engineer (Copenhagen)

Responsibly

Responsibly is a sustainability tech start-up with a vision of making every purchase in the world responsible.

We're founded by serial entrepreneurs with previous successes like Ofload, Dixa, Neurons, and more, and are funded by some of Europe's top VCs and angels.

We’re at the most exciting part of our journey (yet!) where the product is being picked up by some of the biggest companies out there, and we have an incredibly exciting roadmap ahead of us!

Let’s change the world together

If you already know why sustainable procurement is sexy, then skip this section, if not, read on!

Look, you probably already know that there are not many bigger problems out there than the climate, but did you know that more than 40% of global emissions, or really any ESG issue, are directly or indirectly impacted by procurement? That’s because companies have an incredible amount of power (‘purchasing power’) when selecting and managing suppliers, so if we can put sustainability on every supplier scorecard out there, we really can change the world.

But it’s hard! A company will have anywhere from 100 - 100,000 suppliers and analyzing each of their sustainability efforts is an impossible task, and most ESG ratings suck.

That’s what we’re trying to change. Responsibly's ai-powered due diligence engine automates the due diligence on every supplier across every single esg data point on your suppliers (from risk and violations to positive actions), and turns that into insights to ultimately help companies build more sustainable supply chains.

Pretty cool right?
(yes, this dorky description was indeed written by an overly excited founder…)

Make complex insights beautifully simple

We’re growing our engineering team to craft a best-in-class UI/UX experience for the next-generation sustainability due diligence platform, and are looking for that perfect (impossible?) blend of a designer and front-end engineer.

At Responsibly, you’ll work on a design-forward Next.js 15 app that prioritizes speed, usability, and aesthetics. You'll play a key role in shaping interactive, accessible, and visually appealing user interfaces, leveraging modern tools like React, Tailwind CSS, and component libraries like MUI or ShadCN. Your work will directly impact how users interact with and understand sustainability data, making complex insights beautifully simple.

And we don’t just leverage AI for our product—we’re also building a next-generation engineering team where AI-assisted workflows (V0dev, Copilot, Replit Ghostwriter) help us prototype, iterate, and ship faster than ever.

Tasks

What you’ll be doing

• Designing and developing high-quality UI components and interfaces for our Next.js application.
• Collaborating closely with product and engineering teams to turn conceptual ideas into beautiful, intuitive, and functional designs.
• Rapidly prototyping and iterating on UI/UX flows using tools like Figma and AI-assisted development platforms.
• Working with Material UI, ShadCN, Tailwind CSS, or similar UI libraries to build scalable design systems.
• Optimizing the frontend for performance, SEO, and page speed, ensuring users get a lightning-fast experience.
• Taking operational responsibility for the interfaces you build, from development to post-launch refinements.
• Staying ahead of the curve with modern UI/UX trends and experimenting with AI-assisted tools for efficiency.

Requirements

About you

• You are a strong UI designer who codes, with a keen eye for aesthetics and usability.
• You have proficiency in frontend development, including React, HTML, CSS, JavaScript.
• You’ve worked with component libraries and UI frameworks like Material UI, ShadCN, Tailwind CSS, or similar.
• You are comfortable with AI-assisted development and rapid prototyping using tools like V0 dev, Copilot, or Replit Ghostwriter.
• You have experience in responsive and accessible design and understand best practices for cross-browser compatibility and WCAG compliance.
• You are passionate about building fluid, high-performance user interfaces with a focus on SEO, page speed, and great workflows.
• Where you lack experience, you make up for it with passion, talent, and dedication; if you’re straight out of school, you can still convince us if you can demonstrate this!

Benefits

Your benefits

• Competitive salary & opportunity for ESOP (Employee Stock Options) participation
• Onsite in our awesome office in Islands Brygge, but flexibility around hours and remote working.
• Office located in Islands Brygge, close to the water, with awesome lunch, great coffee, and the obligatory ping pong table.
• Lots of fun, like our annual company event or Friday bars!

Still need to be convinced?

• If you’re looking for a role where you can design, code, and push the boundaries of UI/UX, while working on something truly impactful—this is it.
• It’s the opportunity to join an early-stage tech & social impact company on an incredible journey. You’ll have the independence and space to release your creativity
• You'll become a vital member of the team, and your efforts will have a direct impact on the Responsibly’s success.
• You’ll be part of a dynamic company with enthusiastic and highly talented teammates from all backgrounds and countries – always ready to share knowledge, support, and a beer! Successes are always shared together
• We will offer you strong personal and professional development opportunities in a dynamic and high-growth environment – we want to take you from good to great.
• We'll encourage you to push boundaries and be the greatest version of yourself by providing the balance of freedom and structure with a good dose of fun.
• We have fun and we make an impact - life is about more than work!

Responsibly is a venture capital funded sustainability tech start-up with the vision of making every purchase in the world responsible. Why? Because the supply chain makes up 93% of the avg. company’s footprint, and procurement is the gatekeeper to unlock one of the largest forces for impact in the world!

In addition to tackling one of the world’s largest problems, and aiming to make a huge impact, we’re passionate about building the company we’ve always wanted to work in. That means a company full of talented and inspirational individuals that want to do their best work ever to solve a huge meaningful problem. It means a flat and transparent culture where everyone is an empowered owner and where the best ideas win. And it means having fun while we do it, because life is simply too short!

We're founded by serial entrepreneurs and techies with previous successes like Ofload, and have raised pre-seed and seed funding from some of Europe's top VCs and angels .