Frontend Software Engineer - Innovative Builder in London

Corgi builds insurance products for tech startups using AI and a modern stack. The company operates as a licensed carrier, has raised $108 million, and recently expanded into the UK and EU. The platform uses Django, integrates Stripe for payments, and features AI-powered underwriting. Corgi is growing its engineering team in London. Role overview This Frontend Software Engineer role in London focuses on building and shipping products with autonomy. The team values engineers who can take an idea from concept to live deployment without waiting for detailed roadmaps. Experience launching side projects, weekend builds, or products used by real customers is highly regarded. What makes a strong fit Motivation to work in a startup environment Proven ability to independently build and launch projects Delivers results quickly, sometimes within hours or days Comfort working across the stack and adapting to new challenges Shares clear opinions but remains open to better ideas Prioritizes outcomes and team goals over titles How the team works Decisions happen quickly; perfection is not required Products and improvements launch regularly, not just quarterly Emphasis on shipping and iterating instead of long review cycles High intensity is standard, both during launches and quieter times Decisions are made openly and transparently Internal competition encourages everyone to improve This position is for builders who want to create and deliver real products. Behaviors that will end the role quickly Engaging in office politics or gossip Taking direct feedback as personal criticism Adding unnecessary process or overhead Missing deadlines after committing to them How to apply Send links to GitHub, personal websites, live projects, or shipped products CVs are not required Email applications to: sergio@corgi.com Proof of shipped work is required Location and compensation Based in London, with on-site or hybrid options Base salary ranges from £75,000 to £140,000, plus equity options Salary depends on ability to ship, not seniority or job titles

TransPerfect is seeking a Senior Frontend Engineer to join its London-based team. This position plays a key role in developing and maintaining software products that support global operations. The focus is on delivering high-quality, reliable solutions that drive the company’s technology forward. Role overview The Senior Frontend Engineer will work on the design, development, and execution of software products. This includes taking responsibility for the quality of the user interface and ensuring that products meet both technical and user needs. The role involves collaborating with other teams to deliver solutions that support TransPerfect’s worldwide business. About the TechOps team TechOps has supported TransPerfect’s growth for more than ten years. The team builds and maintains technology that streamlines processes for both clients and internal teams. Projects range from workflow improvements to developing scalable interfaces for the GlobalLink platform, all aimed at making complex systems easier to use. What you will do Lead frontend development for software products used across global operations Ensure the quality and reliability of user interfaces Work closely with cross-functional teams to deliver scalable solutions

About UsPerk, formerly known as TravelPerk, is an innovative platform specializing in travel and spend management. Our mission is to eliminate the tedious manual tasks that hinder productivity, automating everything from travel bookings to expense management and invoice processing. By addressing the inefficiencies that cost organizations significant time and resources, we empower businesses to focus on what truly matters.Trusted by over 10,000 companies globally, including industry leaders like Wise, On Running, Breitling, and Fabletics, we tackle the staggering 7 hours of lost productivity each week per employee, a $1.7 trillion issue.Founded in 2015, Perk has rapidly expanded to a team of more than 1,800 talented individuals across 12 offices worldwide, with headquarters located in both London and Boston. Our blend of innovation, control, and simplicity is transforming workplace dynamics and enhancing employee satisfaction.At Perk, our culture is driven by core values such as ownership, delivering exceptional experiences, and fostering teamwork. We emphasize curiosity, purpose, and a growth mindset to unlock your full potential. Our diverse talent team hails from the travel and SaaS sectors, representing over 70 countries. If you’re passionate about making a meaningful impact and reshaping the work experience for millions, we invite you to join us.Discover more at www.perk.com.

Role Overview Utility Warehouse is looking for a Frontend Software Engineer to join the Lifecycle Customer team in London. This group focuses on building web applications that improve how customers interact with our services and help keep them engaged. What You Will Do Work with designers and backend developers to create clear, responsive user interfaces Build features that make our digital products easier and more enjoyable to use Contribute ideas and code that influence our web platforms and customer experience About the Team The Lifecycle Customer team supports Utility Warehouse’s goal of delivering strong value to customers. Collaboration and a focus on usability are central to how we work.

Role overview Deliveroo is looking for a Senior Frontend Software Engineer to help shape the future of its platform. This role focuses on building high-quality user experiences and working closely with teams across the company. What you will do Develop and maintain frontend features for Deliveroo’s applications Collaborate with engineers, designers, and product managers to deliver seamless user experiences Apply expertise in modern web technologies to create engaging, reliable interfaces Location This position is based at Deliveroo’s London headquarters in The River Building.

About the RoleWe are excited to announce an opening for a Senior Frontend Engineer who will take charge of the user interface layer of ThreatAware's dynamic platform. Your main responsibilities will include developing the dashboard, enhancing data visualization, and crafting interfaces for our innovative AI-powered features. You will be working with TypeScript using Angular and React, reporting directly to the Head of Engineering, and collaborating closely with our R&D teams to seamlessly integrate AI functionalities into our platform. If you have a passion for creating stunning interfaces, an eye for detail, and a desire to tackle complex UI challenges with significant real-world implications, this position is perfect for you.Why Join ThreatAware?At ThreatAware, we provide security teams with a comprehensive source of truth for every device and tool within their organization. With over 150 integrations, rapid deployment in under 30 minutes, and real-time visibility across entire IT infrastructures, we have earned the trust of sectors such as finance, legal, energy, and healthcare. We're on a mission to build something even more impactful. After six years of curating accurate cyber asset data, we are now integrating AI to offer new methods for security teams to analyze their data, automate workflows, and proactively manage risks before they escalate. In this role, you will design intuitive interfaces that enhance user experience.Your ResponsibilitiesTake ownership of the frontend that transforms intricate security data into clear insights.Design and develop the platform dashboard and AI workspace UI using TypeScript (Angular and React) — ensuring a data-rich, real-time experience used daily by enterprise security teams.Tackle challenging visualization problems: managing thousands of security events, device interconnections, and AI-driven insights without overwhelming users.Establish a robust component architecture, design systems, and frontend standards that evolve as the team and product expand.Collaborate closely with R&D to translate AI capabilities into user-friendly, polished interfaces.Partner with product and design teams to define and enhance the user experience, rather than just executing it.Mentor junior frontend engineers and elevate the quality of frontend development within the team.Qualifications We SeekExtensive experience with TypeScript, Angular, and React, with a deep understanding of component architecture, state management, and performance optimization.A strong aesthetic sensibility, with a commitment to creating beautiful interfaces and a keen awareness of modern design trends, paying close attention to the details that contribute to a polished product.Proven track record in building data-intensive, high-performance web applications, ideally those that involve real-time data or complex visualizations.Ability to work in a collaborative environment and effectively communicate ideas and solutions.Prior experience in mentoring and guiding junior team members is a plus.

TransPerfect is searching for a Senior Frontend Engineer to join its London team. This role centers on building and refining software products that support both internal operations and client-facing solutions. The Senior Frontend Engineer will help guide development, quality, and delivery across a range of projects. The work involves collaborating with a global team to improve user experiences and streamline complex workflows. TransPerfect’s TechOps group has supported the company’s growth for over ten years, focusing on technology and services that make processes simpler for users and clients alike. Role overview Lead and contribute to the development of frontend features for software products Oversee quality and execution throughout the product lifecycle Work closely with international colleagues to deliver scalable solutions What we look for Experience in frontend engineering at a senior level Ability to collaborate within a global, cross-functional team Interest in improving both internal and client-facing systems This position is based in London and offers the chance to contribute to a company that values innovation and practical problem-solving.

Corgi develops insurance products for tech startups, using AI to enhance underwriting and simplify coverage. With $108M in funding and a full carrier license, the company is expanding into the UK and EU. The tech stack centers on Django and Stripe, supporting frequent product releases and rapid iteration. Role overview This Frontend Engineer role is based in London. The position suits someone who prefers autonomy, moves quickly from concept to launch, and enjoys working in a startup environment. Corgi values engineers who have shipped real products, whether weekend projects, side builds, or anything with live users or measurable traffic. The company operates without a detailed roadmap, so initiative and independent execution matter most. What we look for Drive and energy to match a startup’s pace Evidence of building and shipping projects independently Ability to deliver results in hours or days, not weeks Comfort working across different tech stacks and tackling new challenges Strong opinions, paired with openness to better ideas Low ego and motivation focused on results, not titles How we work Decisions happen quickly; waiting for perfect answers is rare New products and process changes launch often, not just quarterly Shipping and iterating take priority over lengthy review cycles High intensity during launches, steady focus in between Transparency is the norm, and decisions are made openly Internal competition helps keep standards high This is a build seat, not a coast seat. Behaviors that don’t fit Office politics, avoiding responsibility, or gossip Taking direct feedback personally instead of constructively Adding unnecessary overhead instead of simplifying Missing deadlines after making commitments How to apply Share links to your GitHub, personal website, or live projects you’ve built and launched Do not send a CV Email applications to: sergio@corgi.com If you cannot show shipped work, this role is unlikely to be a match Location and compensation London-based, with on-site or hybrid options Base salary: £75,000 to £140,000 Equity included

About UsPhysicsX is an innovative deep-tech enterprise rooted in numerical physics and the high-speed world of Formula One. Our mission is to propel hardware innovation at software-like speeds.We are crafting an AI-powered simulation software stack designed for engineering and manufacturing in advanced industries. Through high-fidelity, multi-physics simulation enabled by AI inference, PhysicsX paves the way for unprecedented optimization and automation in design, manufacturing, and operations, allowing engineers to transcend limits. Our clientele includes pioneers in Aerospace & Defense, Materials, Energy, Semiconductors, and Automotive.The RoleAt PhysicsX, we are developing a robust platform that empowers Data Scientists and Simulation Engineers to create, train, and deploy Deep Physics Models. The foundation of this platform hinges on processing vast amounts of intricate simulation data, facilitating high-fidelity multi-physics simulation through AI inference.We seek a Senior Frontend Software Engineer to enhance our product team. As a vital member of a small group of Frontend Engineers, you will collaborate within a cross-functional team, enjoying the autonomy to influence implementation decisions. You will build and refine the frontend that animates our platform — from dynamic 3D visualizations of simulation data to smooth API integrations driving intricate ML workflows. Your responsibilities will involve designing adaptable frontend architectures, optimizing performance for data-intensive interfaces, and ensuring user-friendly interaction for our engineers and scientists with extensive datasets and simulation outcomes.In your senior capacity, you will significantly shape technical direction — documenting Technical Decision Records, mentoring junior engineers, and establishing standards that ensure our platform remains reliable, secure, and efficient. This role is perfect for someone who thrives on creating exceptional user experiences while also designing robust frontend architectures.What You Will DoDevelop and advance a frontend platform that facilitates complex simulation and ML workflows — from 3D visualizations to seamless API integrations and data-intensive interfaces.Design and implement modular frontend architectures and component systems, incorporating micro-frontend patterns for scalable and maintainable development.Enhance user experience through advanced caching strategies, performance monitoring, layout and rendering optimization, and adherence to accessibility best practices.Create and implement sophisticated state management and data flow patterns to accommodate the demands of real-time simulation data and complex user interactions.Take ownership of your projects from start to finish — from architectural decisions to final implementation.

About UsLightning AI, the driving force behind PyTorch Lightning, was established in 2019. Our mission is to create a seamless, end-to-end platform that simplifies the development, training, and deployment of AI systems, allowing innovative ideas to transition smoothly from research to production.Following our merger with Voltage Park—an AI Factory and neocloud—Lightning AI merges developer-centric software with efficient, large-scale computation. Our platform provides teams with the essential tools for experimentation, training, and production inference, all while ensuring security, observability, and control.We cater to a diverse clientele, including individual researchers, startups, and major enterprises. With a global presence and offices in New York City, San Francisco, Seattle, and London, Lightning AI is supported by esteemed investors such as Coatue, Index Ventures, Bain Capital Ventures, and Firstminute.Our Core ValuesMove Fast: We prioritize speed and precision, breaking down complex challenges into manageable tasks.Focus: We dedicate ourselves to completing one goal at a time, collaborating effectively to deliver precise features.Balance: We believe sustained performance results from adequate rest and recovery, promoting a healthy work-life balance.Craftsmanship: Innovation through excellence—every detail counts, and we take pride in honing our craft.Minimal: We embrace simplicity as a driver of innovation, focusing on what truly matters.Your RoleWe are seeking a skilled Frontend Engineer to enhance and scale the UI and frontend infrastructure of the Lightning AI platform.In this role, you will take ownership of crucial features, driving development from concept to completion while collaborating with a talented team of engineers, product managers, and designers. Your work will focus on ensuring speed, quality, and rapid iteration—from initial proof of concept to final release.With over 10,000 organizations utilizing Lightning AI, this position offers you a unique opportunity to influence how AI solutions are built and deployed in production environments.You will be part of the Growth Squad and report directly to our Director of Engineering. This hybrid role is based in our London office, requiring in-office attendance for 2 days each week.

Frontend Engineer About OutpostAt Outpost, we're revolutionizing global commerce with our cutting-edge AI trade engine. Imagine simplifying international sales as easily as local transactions. We provide a comprehensive infrastructure that encompasses every regulation necessary for global selling. Just tell us what you're offering, and we'll guide you on how to sell it worldwide.Operating across 58+ tax jurisdictions, we can act as the Merchant of Record or Tax of Record, allowing you to transfer full liability or just the tax layer. From set-up to analysis, we manage it all, so you can focus on selling anything, anywhere, without compromise. The RoleWe are seeking a talented Frontend Engineer to craft user-friendly interfaces that simplify complex financial transactions. Collaborating closely with our engineering leadership, you'll design user experiences that drive international commerce, including merchant dashboards, payment processes, tax compliance tools, and AI-driven analytics.Your design philosophy should reflect our belief that great design involves knowing what to omit, creating an interface that feels intuitive and efficient. You'll face challenges like presenting real-time payment data, developing tax compliance solutions, and building merchant analytics tools. Additionally, you'll explore how emerging technologies can elevate our platform. What You'll GetWhile the work can be intense, the reward is significant: you'll be crafting interfaces for critical financial infrastructure managing hundreds of millions in transactions. You will have considerable influence over product and technical choices, collaborate with a small, skilled team, and refine how merchants interact with global commerce. If you're passionate about fintech design and frontend architecture, this is your opportunity. What You'll BuildModern, responsive merchant dashboardComplex financial workflows and payment interfacesTax compliance and reporting toolsTransaction monitoring and risk management interfacesAI-powered insights and advanced reporting tools

We are seeking a talented and experienced Senior Frontend Engineer to join our dynamic team at Pigment. In this role, you will have the opportunity to work with cutting-edge technologies and contribute to the development of innovative solutions that drive our business forward.Your responsibilities will include collaborating with cross-functional teams to design and implement user-friendly interfaces, optimizing application performance, and ensuring the highest quality standards in our products.

Ebury is at the forefront of empowering ambitious businesses to achieve global growth, and we extend this philosophy to our team members. Our culture promotes innovation, collaboration, and problem-solving, ensuring a supportive environment where every individual feels valued, included, and equipped to excel.If you're a team player eager to revolutionize global business operations, we invite you to connect with us. Let’s explore how Ebury can advance your career and allow you to shape the future.London Office - Hybrid: 4 days in the office, 1 day working from home

Anduril Industries is a pioneering defense technology firm dedicated to enhancing U.S. and allied military capabilities through innovative technology. By integrating the expertise, cutting-edge technology, and business models of the most forward-thinking companies of the 21st century into the defense sector, Anduril is revolutionizing the design, development, and deployment of military systems. Our family of systems operates on Lattice OS, an AI-driven platform that transforms vast data streams into a real-time, 3D command and control center. As we navigate an era of strategic competition, Anduril is resolutely focused on delivering advanced autonomy, AI technologies, computer vision, sensor fusion, and networking solutions to the military in a fraction of the time traditionally expected.ABOUT THE JOBThe Maneuver Dominance team at Anduril is at the forefront of developing operationally relevant, multi-asset autonomy. We are committed to building the next generation of autonomous capabilities by leveraging existing Anduril platforms such as Ghost and Altius, integrating third-party platforms into our Lattice ecosystem, and innovating groundbreaking systems that will redefine the battlefield. Our team creates software services and autonomy algorithms that address some of the most challenging problems faced by our clients.As a Frontend Engineer on the Maneuver Dominance team, you will take charge of several web applications that empower operators to design, plan, execute, and review missions for diverse fleets of autonomous systems. You will craft immersive, high-performance interfaces that convert complex operational data into clear, actionable workflows, facilitating the entire mission lifecycle. Above all, our engineers embody a “Whatever It Takes” ethos—executing tasks efficiently and pragmatically while maintaining a sharp focus on mission objectives and sound engineering principles to achieve successful outcomes with precision, punctuality, and quality.

Quantum Systems GmbH is seeking an experienced Frontend Engineer to join the UK team in London. This position focuses on building responsive, user-centered web interfaces for real-time control and monitoring of robotic swarms and sensor platforms. The role offers the chance to shape how users interact with advanced robotics technology. What You Will Do Design, develop, and refine frontend applications for controlling and visualizing robotic swarms and sensor data. Work with backend engineers to integrate APIs and ensure smooth data exchange between systems. Build intuitive, high-performance user interfaces using modern frameworks such as React or similar tools. Translate UX/UI designs into functional, production-ready applications in close partnership with designers. Uphold code quality, scalability, and maintainability through clean coding standards and code reviews. Diagnose and improve frontend performance, especially for real-time use cases. Who We're Looking For At least 5 years of professional experience in frontend engineering. Strong background in building user interfaces for complex, data-driven applications. Proficiency with modern frontend frameworks (React or similar). Comfort working closely with backend engineers and UX/UI designers. This role is based in London, Greater London, United Kingdom.

About Wahed Technologies Wahed Technologies is working to make finance accessible and ethical for everyone. Many traditional financial systems rely on interest (riba), which can create obstacles for those who want to manage their money and build wealth while staying true to their values. The team at Wahed is building an entirely interest-free financial ecosystem. Their products include Shariah-compliant equity ETFs, riba-free high-yield savings alternatives, and real estate investments without leverage. Team members are based in locations around the world and share a commitment to making finance more inclusive. The company is looking for people who want to tackle complex problems and help create a fairer financial future.

About NevisNevis is revolutionizing the financial sector with the launch of the world's pioneering AI wealth management platform. In just nine months, we have successfully amassed over $50 billion in assets under management and we project to surpass $100 billion by year-end.Supported by leading investors, we have raised a total of $40 million from prominent firms including Sequoia Capital, ICONIQ, and Ribbit. This positions Nevis as one of the most highly funded and rapidly growing Series A startups in Europe.The RoleWe are seeking a passionate Frontend Software Engineer who appreciates the artistry of interfaces and sees code as a craft. In this pivotal role, you will design and develop Nevis’ core product, an innovative AI-native wealth management platform, and bring intelligent workflows to life for financial advisors around the world.You will collaborate closely with designers and backend engineers to swiftly transform ideas into reality. If you are enthusiastic about modern web technologies, value design excellence, and are eager to deliver impactful products, you will excel in our dynamic environment.What You’ll DoWork together with designers to create visually stunning and intuitive features.Translate intricate AI and financial data into user-friendly interfaces.Write clean, well-tested, and reusable code while mentoring others in best practices.Contribute to the evolution of our design system and enhance frontend craftsmanship.Rapidly prototype, solicit feedback, and iterate on solutions.Partner with backend engineers to seamlessly integrate APIs and visualize data.Pay meticulous attention to performance, accessibility, and the finer details that users appreciate.Who You AreYou possess extensive experience with TypeScript and a deep understanding of JavaScript.You are well-versed in React and eager to leverage the latest features.You have a thoughtful approach to component design, focusing on composable APIs and clear abstractions.You have an understanding of modern web dynamics including browser performance and the elements that contribute to a responsive interface.You are adept with contemporary tooling such as Vite, SCSS, and component libraries.You are proficient in delivering features from inception to production.

Why Join Socure?At Socure, we are at the forefront of establishing the identity trust infrastructure for the digital economy, ensuring the verification of 100% legitimate identities in real-time while preventing fraud before it occurs. Our mission is vast and our challenges are intricate, impacting businesses, governments, and millions of individuals worldwide every day.We seek individuals who are eager to embrace significant responsibilities. If you are someone who thrives in a fast-paced environment, thinks critically, acts with ownership, and is deeply committed to delivering precise solutions for our customers, you’ll find your place here. This is not a setting for those who prefer predictability or limited scope. If you are driven to help shape the future of identity with a team that maintains high standards, continue reading.As a Senior Frontend Engineer on our RiskOS team, you will play a crucial role in developing intuitive, high-performing, and reliable web applications that empower our users to proactively identify and mitigate risks. You will engage in every aspect of the software development lifecycle—from architectural design to implementation, testing, and production support. By leveraging modern frontend technologies and best practices, you will not only advocate for optimal solutions but also mentor fellow engineers. This role is ideal for frontend specialists who are passionate about creating design systems, enhancing user experiences, and making a considerable impact at scale.Your Key Responsibilities:Design and develop robust user interfaces based on high-fidelity designs and functional specifications of varying complexity.Collaborate closely with product managers, designers, and engineers to deliver a customer-focused product that exceeds expectations.Take ownership of features from design reviews to production deployment, ensuring high quality, usability, and performance.Develop comprehensive unit, integration, and end-to-end tests to ensure code robustness and extensive functional coverage.Translate complex technical and product challenges into manageable tasks and drive them to successful completion.

Join our dynamic team as a Senior Frontend Engineer at AECOM, where you will be at the forefront of developing innovative web applications and user interfaces. We are looking for an enthusiastic engineer with a passion for crafting seamless and engaging digital experiences. You will collaborate with cross-functional teams to design and implement robust solutions that enhance user interaction and satisfaction.

Join us at elasticstage as a Senior Frontend Engineer and play a crucial role in revolutionizing the music industry. Our innovative technology enables the production of on-demand vinyl records, providing a platform for music creators to effortlessly create and sell their music worldwide at no cost. We collaborate with top record labels, streaming services, digital providers, distributors, and renowned global artists to deliver a comprehensive solution for physical media. Our mission is to empower small and emerging artists, offering them seamless access to market their vinyl and CDs to fans through our state-of-the-art production and fulfillment centers across Europe, the USA, and Asia.The vinyl market has experienced consistent growth of over 20% annually for the past 16 years, and CDs are witnessing a resurgence for the first time in two decades. By 2030, we anticipate nearly 200 million music creators globally, with AI further accelerating this growth. Many artists aspire to have their music available on vinyl or CD for their friends, family, and fans, and our scalable on-demand technology makes this accessible without the burden of high costs or minimum orders. At elasticstage, we provide easy and affordable access to this burgeoning market.As a Senior Frontend Engineer, you will take ownership of our front-end platform, engaging in hands-on development while providing technical leadership and direction. You will collaborate closely with product, design, and backend engineering teams to deliver exceptional user experiences across our e-commerce platform, creator tools, and operational systems.Join us and contribute to scaling a dynamic, high-profile disruptor in the music industry!