DesignEngineer

We Are Sparta Sparta is the next-generation commodity trading platform. We give trading desks the clarity, control, and collaboration they need to move faster and trade smarter. In February 2025, we secured $42 million in Series B funding. Now we’re scaling up across the business, and it’s an exciting time to join. Our people are the driving force behind everything we do. At Sparta, you’ll be trusted to take ownership, backed by a team who wants you to succeed. You’ll be challenged, supported, and given room to grow. Because building something this ambitious takes everyone at their best. At Sparta, your work has reach. From improving our platform, to powering smarter decisions for our customers, to changing how commodity trading is done around the world. And because we’re growing fast, you won’t just build your career. You’ll accelerate it, with a level of ownership and impact you simply don’t get at bigger, more bureaucratic companies. Design Engineer This role is for someone who doesn’t fit neatly into a box and stopped trying to a while ago. A creative who builds, someone who sees the boundaries between design and engineering shifting and finds that exciting rather than unsettling. You will work across the full arc of product development, from early discovery and problem framing through to production-quality UI. You will question what gets built, get close to the customer, and design in real context with real data. The tools and workflows available to us have changed what’s possible. We want someone who already thinks that way. If this sounds like the way you already work, we’d like to meet you. What you’ll do - Work across the full product lifecycle, from early discovery through to shipping UI in React, TypeScript and CSS, without a handoff. - Reach for code the moment an idea is worth exploring. Prototyping in working software is how we drive consensus, validate early and reduce the cost of being wrong. - Build and maintain the design system that the wider team