Lead Product Designer (First Design Hire)

Jua; London; Hybrid; GBP 60,000 - 90,000; Full time

Job summary

A forward-thinking tech company based in London is seeking a Lead Product Designer to shape the user experience for their innovative AI-driven weather platform. As the first dedicated designer, you will drive the design approach, collaborating with engineers and researchers to create user-friendly tools that address complex challenges. The ideal candidate will have over 7 years of experience in B2B design, a strong portfolio of impactful work, and advanced skills in design tools like Figma. Join a mission-driven team committed to leveraging technology for global climate solutions.

Benefits

Generous stock options

Creative freedom

Fair pay

Qualifications

• 7+ years designing B2B, data-rich technical products.
• Strong portfolio showcasing end-to-end design work.
• Advanced skills in Figma and familiarity with design tools.

Responsibilities

• Lead the full UX/UI design lifecycle for the platform.
• Conduct user research to gather actionable insights.
• Collaborate closely with engineers to ensure quality design implementation.

Skills

Usability Design

Visual Design Excellence

Collaboration Skills

Responsive Design

Tools

Figma

PostHog

TypeScript

React

Tailwind

Job description

Overview

Jua is working towards a universal physics simulator through a deep exploration of nature and the universe, their interaction with humans, business and the built environment. With a universal physics simulator, we collapse that barrier and help to use natural resources efficiently and sustainably whilst increasing human standard of living and spurring economic growth.

By joining our talented multidisciplinary team, you'll help shape our culture of ambition, transparent communication, and rapid iteration. We offer exciting challenges, creative freedom, fair pay, and generous stock options.

What we’re looking for

We’re hiring a Lead Product Designer to lead UX for our AI-driven weather platform. As our first dedicated designer, you’ll define the design approach and ship intuitive interfaces for time-critical, expert workflows. You’ll partner daily with software engineers, research scientists, and go-to-market teams to turn complex functionality into simple, reliable tools that experts trust.

Responsibilities and tasks

• Lead the full UX/UI design lifecycle for web and platform, from research to delivery
• Conduct user research (interviews, surveys, usability testing) and synthesize qualitative and quantitative feedback into actionable insights
• Leverage analytics tools (e.g. user behavior tracking) to inform design decisions and measure impact
• Create and validate design concepts through user flows, personas, experience maps, wireframes, and interactive prototypes
• Develop and maintain a modular Figma design system, including documentation and usage guidelines, to ensure consistency
• Collaborate closely with engineers to ensure accurate and high-quality design implementation and resolve design/development trade-offs
• Craft clear, concise microcopy, including navigation labels, error states, and tooltips to support usability and tone consistency
• Communicate design rationale and present work to various stakeholders
• Stay current on UX/UI trends, tools, and best practices

Need-to-have

• 7+ years designing B2B, data-rich technical products; first/solo design hire or founding designer experience preferred
• Strong portfolio showcasing end-to-end design work, with emphasis on usability, visual design excellence, and measurable outcomes
• Experience instrumenting PostHog (or equivalent), defining an event taxonomy, building funnels/cohorts, and using insights to inform design while respecting user privacy.
• Advanced skills in Figma (prototyping, component libraries) and familiarity with other design/wireframing tools
• Hands-on experience with AI-assisted design tools and the ability to prompt, evaluate, and refine outputs into production-ready designs
• Strong understanding of responsive design, accessibility standards, and design systems
• Excellent collaboration skills and proven ability to work in agile, cross-functional teams
• Strong written and verbal communication skills in English, with confidence in presenting to diverse stakeholders

Nice-to-have

• Basic front-end development knowledge (TypeScript, React & Tailwind)
• Experience designing for complex or data-rich applications

What’s in it for you

• Own and ship fast. Work in a product culture where engineers drive decisions, move from idea to production quickly, and see their impact in days, not quarters.
• Join a mission-driven company. Apply cutting-edge ML to global climate and energy challenges, an impact-first alternative to profit-only tech or finance roles.
• Work on groundbreaking technology. Be at the forefront of weather forecasting and machine learning, contributing to innovations that push boundaries.
• Collaborate in a high-agency team. Pair with experienced engineers and researchers in a hybrid environment that balances flexibility with in-person work.
• Shape a meaningful industry. Build solutions for the energy-trading sector, using AI to drive real-world change and influence the future of global markets.

Note: Only candidates who submit a portfolio (website or PDF) will be considered.

At Jua, we foster a performance culture and value people who embody our beliefs of service and adventure. We prioritize agility, operating at the highest clock speed to adapt quickly to change. We innovate on behalf of our users and leverage data supremacy to maintain our competitive edge. Through clear communication and fact-based decision-making, we ensure alignment in our pursuit of excellence. With these principles, we aim to create a customer-focused, value-centric organization that sets new standards in the industry. We value the unique perspectives that each individual brings to the table and believe that embracing diverse backgrounds and experiences enriches our collective journey towards growth and success.