Overview

Neutreeno is tackling genuinely hard problems. Emissions data is messy, deeply hierarchical, and full of uncertainty. Users sit inside some of the largest companies in the world and span operations, finance and sustainability, each with different mental models and different definitions of good. The Founding UX Designer's job is to make that complexity feel obvious, and to make the resulting insight something a decision-maker acts on.

This is Neutreeno's first full-time UX design hire. You will be the only and lead designer, owning the product's design end-to-end with a path to leading an expanded design function as the company grows. This position operates on a hybrid work model with a minimum of 2 days per week in the Cambridge office.

Product Design

• •Own the end-to-end design of the product, from problem framing and information architecture through to interaction detail and shipped UI.
• •Make complex, uncertain, hierarchical emissions data legible and actionable for operations, finance and sustainability audiences.
• •Set the visual and interaction direction, and raise the bar on craft across everything shipped.
• •Prototype fast and often.

Design System, Built AI-First

• •Define, build and maintain the Neutreeno design system: foundations, components, patterns, content and data-visualisation standards.
• •Architect the system to be machine-readable and AI-native so AI coding tools and agentic workflows can build against it reliably.
• •Make the system the fastest path to both a prototype and production UI.
• •Champion AI-native design and development practices across the team.

Cross-Functional Collaboration

• •Work shoulder-to-shoulder with software engineers, translating design intent into well-scoped work that ships reliably.
• •Partner with the Head of Product on discovery, roadmap and prioritisation.
• •Work with climate engineers to understand the methodology behind the numbers, and represent uncertainty, assumptions and data quality honestly in the interface.

Customer Engagement and Research

• •Design and run the structures that make client engagement continuous and systematic: design partner programmes, regular usability sessions, feedback channels, and a clear route from what is heard to what is built.
• •Embed those structures across the company so engagement is a shared habit rather than a design activity.
• •Run discovery research on new product capabilities: what to build, for whom, and what good looks like.
• •Measure whether shipped work moved the needle, and feed that back into the roadmap.

Minimum Qualifications

• •7 or more years of professional product or UX design experience, with a portfolio you can talk through in depth.
• •Proven experience designing complex B2B, enterprise or data-heavy products.
• •Demonstrable experience defining and running a design system, including how engineering consumes it.
• •Strong craft across research, information architecture, interaction design and visual design.
• •Real, daily use of AI tools as a core part of how you work, whether for prototyping, design system tooling, research synthesis or generating production-ready UI.
• •Experience running research and usability sessions directly with customers, and turning what you learn into decisions.
• •A track record of shipping high-quality work at pace, with high autonomy and little process.
• •Strong communication and the ability to build trust quickly across engineering, product, science and leadership.

Preferred Qualifications

• •Experience as an early or founding designer at an early-stage startup.
• •Comfort working in and around code, enough to read a component, ship a small front-end change, or hold a credible conversation about implementation trade-offs.
• •Experience designing data visualisation for analytical products, including communicating uncertainty.
• •Experience building AI-powered product features, or designing for agentic and LLM-driven interfaces.
• •Exposure to climate, sustainability, supply chain, manufacturing or deep-tech domains.

Compensation and Benefits

• •Competitive pay dependent on skills, qualifications and experience.
• •25 days annual leave.
• •Year-end performance bonus.
• •Meaningful equity stake.
• •Company pension with NEST.
• •Leading private health insurance with WPA.
• •Cycle to work scheme.
• •Hybrid work model with remote working allowance of 2 weeks per year for personal travel.
• •Work from Neutreeno HQ at the Cambridge Institute for Sustainability Leadership.
• •On-site amenities including unlimited free coffee and regular events with global sustainability leaders.

How to Apply

Send your CV and a cover letter covering: a complex product you designed and what made it hard, how AI tooling features in your day-to-day design work, and what is drawing you to Neutreeno specifically.