Senior Frontend Engineer

The Role: We’re looking for a Senior Front-end Engineer who’s excited to shape how people at the world’s largest companies work with AI day to day. At Magentic, you’ll have a huge amount of ownership over the product experience, building the interfaces through which enterprise users collaborate with AI agents operating in real time. You’ll also play a key role in evolving our frontend technical practices and driving the architecture as we scale. We’re redefining how people interact with enterprise software. We’re rethinking what great enterprise software looks and feels like, and building intuitive experiences for complex, high-impact workflows. You’ll be working at the cutting edge of human-computer interaction, helping us define new patterns for how people interact with increasingly intelligent software. We’re building next-generation agentic systems that can manage entire procurement workflows, with a mission to make global manufacturing supply chains more resilient to an ever-changing world. That’s a $3tn market opportunity. We’re backed by world-class investors including Sequoia Capital, and you’ll be joining an exceptional team bringing together experience from OpenAI, Meta, Revolut, NASA and McKinsey. What You’ll Do: Own the development of high-quality user-facing experiences, from early ideas through to productionHelp drive the architecture and technical direction of our frontend as the product and engineering team scaleImprove frontend engineering practices, raising the bar for code quality, performance, testing and maintainabilityWork directly with users to understand their problems and make complex AI workflows feel simple and intuitiveCollaborate closely with Product, Design and Engineering to shape what we build and continually increase the impact of our product You Might Be a Great Fit if You: Have 10+ years of professional software engineering experience, with significant experience building complex frontend applicationsAre highly proficient in TypeScript/JavaScript and ReactHave strong frontend architecture experience and have helped improve technical practices within an engineering teamHave experience building products powered by LLMs or other AI technologiesThrive in an early-stage, high-ownership environment where you can move quickly, influence decisions and communicate effectively across technical and business teams Bonus Points: Comfortable moving between product thinking, interaction design and frontend implementationHave experience building or evolving scalable design systemsHave worked on complex, data-heavy enterprise productsFamiliarity with supply chain, procurement or manufacturing domainsComfortable working with Python Compensation and Benefits: At Magentic, we recognise and reward the talent that drives our success. We offer: Competitive Equity: play a real part in Magentic’s upside.Salary: £120,000 - £135,000 per annumVisa sponsorshipHybrid London HQ (3 days in the office).Company provided meals at the officeMonthly “Social budget” to spend getting to know your colleagues (coffee, food, activities, etc.)Salary sacrifice pension and nursery schemesAnnual team retreat—a fully-funded off-site to recharge, bond, and build. Our interview process: We can move quickly through these stages, so let us know if you have any timelines we need to meet. Initial call (30 mins): this first step is an opportunity for you to hear more about Magentic and the role, and for us to learn more about how your experience aligns with the role.Paired programming interview (45-60 mins): we'll give you an exercise to demonstrate the key skills for the role.In-person interview: for the final step, we invite you to come meet the team in-person and work alongside us! We find this is the best way for candidates to get a sense of what working at Magentic is like. This will include a culture interview, a founder interview and skills-based interview(s) with the team. Equal Opportunities and Accommodations Statement At Magentic, our mission is to build AI that helps solve some of the world's most complex real world problems. We believe building a diverse workforce will be the key to solving this for our customers. Magentic is committed to creating a truly inclusive team and we’re proud to be an equal-opportunity employer. As we grow, we're intentional about building teams with a broad range of backgrounds, experiences and viewpoints, recognising that this leads to better ideas, stronger collaboration and better outcomes for our customers therefore we strongly encourage applications from all backgrounds and cultures to apply. We recognise that some groups remain underrepresented within the industry and are committed to creating an environment that celebrates and supports everyone. Everyone works differently, and we want to ensure our interview process gives you the best chance to show us what you can do. If you require any reasonable adjustments or accommodations, please let us know and we'll work with you to make the process accessible. Responsible AI Statement At Magentic, we are committed to developing artificial intelligence that benefits humanity. We push the limits of AI's capabilities and are dedicated to its responsible and safe deployment. Recognising the profound impact of AI, we ensure that its development is centred around human needs and safety, incorporating a wide array of perspectives to fulfil our mission.