Barcelona · Remote · Freelance part-time (~20 hrs/week) · 1 day on-site preferred About us SLNG builds infrastructure for voice AI, the technology behind AI agents that can hold real phone conversations. We’re the layer that makes those agents faster, better, and able to run in different countries without breaking rules on data.
We’re seed-stage startup and we move fast. A small team with a big ambition and a lot of interesting design problems.
About the role We’re looking for highly experienced freelance Graphic and Web Design Lead to work directly with our Content Lead. You’d own visual direction end to end, with real ownership and autonomy.
Our audience is engineers and technical decision-makers. The design has to feel credible to them through sharp, clear, considered assets. If you love the idea of building a visual language for a technical brand from the ground up, this is the role.
What you’ll do
Shape and evolve our visual language across every touchpoint
Turn technical concepts into clear, considered diagrams and infographics
Design web page components and landing pages
Produce social and event assets that hold the same bar
What we’re looking for
Portfolio showing range, strong brand thinking alongside execution A real eye for making complex ideas visually simple
Someone who takes a rough brief and comes back with a direction
Figma fluency; Webflow or basic front-end a real plus
Comfort in a fast-moving, unstructured environment
Proven experience in SaaS or any other technically complex niche
Details
~20 hours per week
Official monthly invoicing
Ideally based in Barcelona, one day a week on-site preferred
Long-term collaboration
Start: asap
How to apply Send your portfolio and a short note on why this role fits.
📌 Freelance Graphic and Web Design Lead (Madrid)
🏢 Slng
📍 Madrid