Computational Design Engineer

AI for the Built World:
Build helps the world's largest real estate and infrastructure institutions find, test and plan sites a magnitude faster than the market. Clients get site sourcing, due diligence, feasibility and test fits delivered in days rather than months, by a team of experts working alongside AI. It covers the projects that matter most: digital infrastructure, energy and industrial, from concept to completion.

Our mission is to accelerate and amplify the world's most important built projects - inventing a better way to build through a collaboration between human experts and AI. We envision a future where the world's buildings are driven from concept to completion. Without delays, cost or complexity. Enabling people to deliver a magnitude more deals. To make decisions, build relationships and create.

We're partnering with the world's biggest built world institutions, from $T alternative asset investors to prolific developers and even governments, to push the frontier of what's possible. We're backed by c-suite from Blackstone and OpenAI alongside the world's best venture capital firms.

Join us in shaping the future of the Built World and exponentially accelerate your career in the process. We welcome you to do your life's work here.

The Computational Design Engineer owns how Build looks, feels and works, and ships it in production code.

This is a design role and an engineering role in equal measure. You'll design the product and the 3D and site design tools behind it, then build them yourself: production React and Type Script on the front end, and Rhino, Grasshopper and Python for the geometry underneath.

Our clients make big decisions about land, power and buildings. What they see from us has to be clear enough to act on and good enough to defend in an investment committee. You'll design and build the product they use every day, the tools that lay out a site in minutes and the deliverables that land on their desk.

There's no handoff. You sketch it, model it, build it, ship it and watch how clients use it. You'll be the design lead on a small team that ships fast, working directly with James SE and alongside our engineers and domain experts.

Spatial and 3D design tools: the parametric logic, site layouts, 3D views and CAD outputs behind the test fits clients use to decide what a site can hold

Product design end to end: user flows, interfaces and the details inside them, from first concept to shipped feature

The front end: building what you design in React and Type Script, reviewed and shipped to the same standard as our engineers

The design system: one set of components, type, motion and rules that keeps every surface consistent and lets the whole team ship good work without you in the room

Making complex work clear: turning maps, site data and multi-step workflows into screens and reports a client can read in a minute and trust

Everything around the product: flagship demos, the website and the deliverables clients actually receive

Time with clients: seeing how decisions get made and approved on real projects, and feeding that straight back into what we build

Taking a site layout tool from a working prototype to something a client runs on their own, from the rules that place each block to the screen they adjust it on

Building a single design package and moving the product onto it

Redesigning the map so every type of site data reads at a glance

Turning a complex workflow into an interface a client can follow and defend internally

Redesigning the decks and drawings we deliver so they read like they came from the best firm in the market

A designer who engineers. You've trained in architecture, product or computational design, and somewhere along the way you started writing production code yourself. You see systems, not one-off screens, and you'd rather make a tool that produces a hundred good answers than draw one by hand. You have real taste and you're unreasonable about quality, but you ship.

You work in 3D and geometry:
Rhino and Grasshopper, Python or C#, Three.js or similar, and you've built tools, not just used them

You've shipped production front end (React, Type Script, Next.js) as well as designing it

You have a few years at a leading architecture, design or engineering practice, or at a product company building design or spatial tools, or your own practice with this at its core

You've made complex tools simple enough for people who…