Design Engineer

Sparta

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 code. * 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 builds on, reducing duplication and raising consistency across the product. * Translate genuinely complex domains into clear information architectures and interaction models. Our data is not simple. That’s part of what makes the problem interesting. * Help shape how our customers work with and use AI, contributing to one of the most interesting design problems in the market right now. * Bring AI-assisted workflows into standard practice and keep exploring. We want someone who is actively pushing what’s possible, not treating it as a background activity. * Work fluidly across design, engineering and product. Role boundaries are becoming permeable, and we understand the future will make us rethink traditional responsibilities. What we’re looking for * Solid understanding of web stack, with a portfolio that spans problem framing to shipped code in complex, data-rich environments. * Strong systems thinking, with the ability to model complex domains, information architectures and interactions clearly. * A genuine seat at the table on what gets built. You will help shape product direction, not just respond to it. * An active and evolving practice with AI tools, someone who is already using them to raise the bar on what they ship, not just experimenting. * A solid understanding of web standards and accessibility, and why they matter in a product people depend on daily. * A genuine instinct toward the user. You care whether what you build works for the person using it, not just whether it looks as it should. * An eye for quality that AI can't replicate. You know what good looks like, and you hold that standard across everything you touch. Sparta Commodities is proud to be an equal opportunity employer and promotes diversity within its workforce. We are determined that no-one will ever receive less favourable treatment on the grounds of gender, age, disability, religion, belief, sexual orientation, marital status, race, veteran status or any basis covered by appropriate law.

Native Design

YOUR MISSION Native is an independent design and innovation studio based in Shoreditch, where we've been developing physical and digital products for over twenty years. We work across early-stage concepts, functional prototypes, and technically ambitious R&D - translating ideas into things that actually exist in the world. We're not currently hiring for a specific graduate role, but we're keen to connect with talented people who are starting out and want to build a career doing genuinely interesting work. If you have a background in design engineering, mechanical or electronic engineering, mechatronics, or software and technology development, we'd welcome a conversation. As a junior member of the team, you'd be embedded in a multidisciplinary environment - contributing to concept development, prototyping, and testing, working under the guidance of senior engineers and designers, and growing your skills across a range of projects and clients. YOUR PROFILE We're interested in people who are curious, hands-on, and keen to develop across disciplines. You might bring some of the following: A foundation in design engineering, mechanical engineering, electronics, mechatronics, or a related technical field. An interest in software or technology development, whether that's firmware, embedded systems, application development, or something broader. Some exposure to CAD, prototyping, PCB design, or development tools - through coursework, projects, or personal work. The ability to communicate clearly, work collaboratively, and ask good questions. An appetite for working in a fast-moving, creative R&D environment where no two projects are the same. We're not looking for expertise across every area - we're looking for people with solid foundations, genuine curiosity, and the drive to grow. WHY US? Native has been independent for over twenty years. That matters, because it means we work on the projects we believe in and take a long-term view on quality and craft. Joining us as a graduate means being part of a small, senior team where your contribution is visible and your development is taken seriously. The work is varied - spanning physical product development, electronics, software, and emerging technology - and the studio culture reflects that breadth. We're based in Shoreditch, well connected and surrounded by a strong design and technology community. We offer 25 days' holiday plus bank holidays, enhanced parental leave, Bupa private medical insurance with 24/7 GP access and mental health support, a health and wellness cashback plan, gym discounts through Hussle, and access to YuLife wellbeing benefits. We also support professional development through learning opportunities, industry talks, exhibitions, and visiting speakers.

tldraw

ABOUT YOU You’re a product engineer who leans front-end but is comfortable diving across the stack. You thrive in startup environments, have strong technical chops (React / Next / Node / TypeScript required), and you want to build tools and experiences that empower others. You’re excited by experimentation, high-leverage product problems, and a company culture that celebrates creativity and developer-first thinking. We celebrate craft and nerd out about bringing obsessive attention to detail in our products. THE ROLE You will join our product engineering team working across our SDK and the web application, collaborating closely with product and design. Your work will impact both end-users of tldraw.com and enterprise customers building on our SDK. Key responsibilities include: * Build, maintain and scale core features of the tldraw web app and SDK (React, Next.js, Node.js, TypeScript) * Collaborate with design, product and engineering to shape new experiences: ideate, prototype, ship and iterate * Contribute to and maintain developer-facing documentation, code samples and SDK usage patterns (ensuring our SDK remains world-class) * Monitor performance, reliability, and developer-gravity of our platform; proactively identify friction points and improve them * Participate in an experimental culture: build viral demos, iterate fast, embrace creative tooling ideas * Work across the stack when needed: focus on UI and interaction design but able to also help maintain backend services and APIs YOU SHOULD HAVE * Strong hands-on experience building modern web applications using React, Next.js, Node.js, and TypeScript * Experience on high-agency teams where you’ve shipped meaningful features and helped shape the product * Excellent problem-solving mindset. You can navigate ambiguous, high-leverage problems and drive them to completion * Clear communication skills, and the ability to engage with product/design/engineering as well as external developer users * Demonstrated strong product + frontend competence as well as proficient knowledge in backend systems * Based in or willing to relocate to London / able to work at the Finsbury Park office WE’D LOVE (BUT DON’T REQUIRE) * A passion for building developer tools, SDKs or platforms is a strong plus * Side projects or contributions to open-source communities WHAT YOU’LL GET * Competitive salary + equity options * Hybrid working model (office in Finsbury Park; mix of remote + in-office) * 25 paid days holiday + UK public holidays * Private health insurance * Pension contribution * Income replacement & employee assistance programmes * Equipment allowance + great tech stack * Opportunity to join a fast-growing startup and help shape the future of creative collaboration ABOUT TLDRAW tldraw is a London-based Series A startup building the go-to infinite canvas primitive for collaborative products needing a web-native surface. With 70k+ X (Twitter) followers, 43k+ GitHub stars, and a vibrant community of makers and builders, the brilliant folks working at tldraw strive to be a modern-day equivalent of Xerox PARC for creative tooling. We’re innovative, experimental, and boundary-pushing. Come bring your expertise to the table!