We're empowering small teams with technology that makes it easier to market and grow businesses. Our current focus is to help consumer brands shift from "workflow automation" to "agent management" within their marketing operations. Shadow is the AI coordination layer — providing shared AI memory, centralized agent control, and model orchestration for marketing teams. Product Ownership You'll ship production code daily and help steer key product and technical decisions.
- Shape the Engineering Culture You'll influence how we work—tools, processes, standards, and hiring.
- Work with Challenger Consumer Brands Talk directly to customers (CEOs, CMOs, VP's) of fast-growing consumer brands—some doing $80M–$500M in revenue. Shadow is built alongside Darkroom — a performance marketing agency that's been operating for 10 years, employs 100+ people, runs 100+ clients at a time, and has worked with over 1,000 consumer brands. The agency is both our proving ground and our first user, which means the data you build with is real marketing data at real volume from day one — not a synthetic demo. You’ll own features end-to-end at Shadow, from the first conversation with a user to the polished screen in production. You’ll design in Figma and in code, and ship it yourself. Then you’ll turn what you learn into features that fix it. Languages & Frameworks: Python, Node.js, React (TypeScript)
- PostgreSQL
- Cloud & Infra: Google Cloud Platform, Airflow, Terraform, Docker, Kubernetes
- Own features end-to-end: find the problem, shape the solution, then design, build and ship it.
- Turn what you learn into product: agent conversations, performance and creative dashboards, the marketing calendar, and whatever comes next.
- Own UI/UX consistency across the whole app.



Keep the design system current in Figma and React, and hold every new screen to it.
- Prototype fast, in code, in Figma or with AI tools, and put ideas in front of experts within days.
- That means streaming answers, showing the agent’s reasoning, approving changes before they touch a live ad account, and admitting when data is missing.
- Turn dense, multi-channel data into screens a marketer can read in seconds.
- Bring the new Shadow brand into the product, working with our brand partners. Shipped product UI you’re proud of, plus a portfolio or live work that shows both the design and the code.
- Strong React, TypeScript and CSS (Tailwind a plus). You can own a frontend codebase, not just individual components.
- Real visual and interaction design skill: typography, layout, color, motion and micro-interactions.
- You notice when two screens solve the same problem differently, and you fix it.
- Equal comfort in Figma and in your editor, and the judgment to know when to skip Figma.
- Taste for data-dense interfaces. You’d rather ship and learn than polish in private.
- Clear writing. You can explain the why behind a design to engineers, experts and non-designers.
- Most people who fit this have 5+ years across design and some experience with frontend engineering. You’ve built a design system that other engineers rely on.
- Data visualization work in D3, Visx, Recharts or hand-rolled SVG.
- Motion work, such as spring animation or Framer Motion.
- Unlimited PTO + Local holidays (Relevant to your hub): Remote-First Culture: Employees based in or near our New York or Lisbon HQs are expected to work hybrid with weekly in-office time. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements.

📌 Diseñador UX (España)
🏢 Darkroom
📍 España