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You will architect and build the core systems that power Nubank’s design and research function, including the NuBrain knowledge platform and design quality measurement tools. You’ll work directly with designers and researchers to translate needs into scoped, instrumented code, and own the CoE tooling roadmap without a dedicated PM.
They need a senior engineer with deep experience building UX‑scale systems—design systems, UI platforms, or agentic tooling—and a proven track record of shipping such infrastructure. Experience with AI‑assisted design tools and the ability to navigate a large stakeholder group is also required.
The role creates shared, reusable tooling that turns fragmented, local inventions into organization‑wide capabilities, enabling the design function to scale efficiently. Successful systems will improve knowledge retrieval, quality measurement, and overall design productivity across 260 designers and researchers.
Ideal candidates are design‑system or UI platform engineers, or engineers from design‑tooling or AI‑agent backgrounds who have built internal tooling at scale. Founders or technical leads who have acted as the sole engineering force behind a design‑led product also fit well.
About Nu
Nu serves more than 140 million customers, guided by a mission to fight complexity and empower people. The company has been leading an industry transformation through innovative products and human-centered services.
Proprietary technology and data at scale power Nu’s digital platform, built to promote financial access, advancement, and transparency. Its business model thrives on customer love and lower costs, feeding a flywheel of growth and profitability.
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About the role
We're looking for an outstanding engineer with a real passion for design.
Nubank's design and research function is roughly 260 people. Over the past year they have been building their own tooling: something like 100 AI-assisted solutions and 30+ local knowledge repositories, each built inside a business unit to solve that unit's problem. Most of them work. None of them talk to each other.
The Design Center of Excellence exists to turn that kind of local invention into systems the whole function can build on. It has design ops and research ops. It does not have an engineer — which means the CoE can identify a need, specify a tool, and then has no one to build it.
This is that hire: the first engineer in the CoE, and the person who architects the systems that let design at Nubank scale. You'll work directly with the designers and researchers who use what you build, and the person who scopes a system is the person who builds it.
What you'll work on
NuBrain — the first priority. A global knowledge system for the design and research function, consolidating the 30+ local repositories that already exist. The hard part is not merging content; it's the context architecture — how retrieval is structured, how token consumption stays sane, and how content reaches people and agents at the moment it's useful.
A design quality measurement platform. The function knows what good looks like and has the parameters written down; scoring a flow against them is currently a manual exercise in Figma. The goal is an index — a real number for the quality of a given experience — produced by a system, not a spreadsheet.
Canonicalizing what already exists. Roughly 100 AI solutions have been built locally by designers and researchers. Someone needs to understand what they are, decide what becomes standard for the function, and retire the rest before the duplication compounds.
Deciding the shape of the answer. Plugin, MCP server, agent, Claude skill, or a full platform — that call is yours to make and defend. Part of the job is telling the CoE that the tool they asked for should be something else.
What you'll do
What we're looking for
An outstanding, deeply experienced engineer. This is an engineering hire first. You've spent years building systems other people build on.
A track record architecting UX systems. Before AI, you designed and built the foundations of user experience at scale — design systems, component platforms, UI frameworks, front-end infrastructure used by many teams.
A love for design that shows up in your work. Since AI, you've used it to build compelling examples and more sophisticated systems than were possible before. We'd like to see them.
Agentic systems that help design scale. Ideally you've built them — agents, tooling, or infrastructure that let designers do more, faster, and better. This is the strongest signal for the role.
A protagonist. You'll serve a 260-person function as a centralized hub. That means navigating stakeholders, leading projects, and pushing work through an organization that doesn't report to you. You drive the work yourself rather than relying on someone else to run the project.
Evidence you've shipped. Send us GitHub, live tools, demos, and systems you can walk us through. We are not asking for a design portfolio.
Backgrounds that tend to fit
What this role is not
Our recruitment process may involve the use of artificial intelligence–enabled tools, such as automated interview transcription and analysis, to support the evaluation process. Artificial intelligence is not used to make final hiring decisions; all decisions are made by human reviewers.
To maintain a consistent and fair process for every candidate, Nu does not provide individualized technical feedback. See how our policy works here
Nubank
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