Lead Principal Front-End Engineer

About Blockchain.com Blockchain.com connects people to the world of cryptocurrency. Since 2011, the company has supported over 90 million wallet holders and more than 40 million verified users, processing more than $1 trillion in transactions. Role Overview The Institutional team at Blockchain.com is looking for a Front-End Engineer based in London. This group focuses on building tools and experiences for institutional clients in the crypto space. What You Will Do Collaborate with colleagues to deliver front-end solutions for institutional products Contribute to a culture that values courage, productivity, and continuous improvement Work to optimize processes and deliver results that matter Grow your skills by learning from others and sharing knowledge What We Look For Strong interest in front-end engineering and digital assets Team player who values collaboration and learning Commitment to high standards and impactful work Based in London or willing to work from the London office

About HookAt Hook, we are revolutionizing customer growth through the power of artificial intelligence and machine learning. Our innovative solutions empower businesses to accurately forecast revenue, enhance customer loyalty, and unlock significant value from their existing customer base.As a Series A startup, we are proud to be ranked 33rd among the Sifted fastest-growing startups. With substantial funding from leading investors across Europe and the US, including Balderton Capital and Lightspeed, we collaborate with some of the most dynamic companies globally. We seek passionate individuals eager to contribute to our vision of transforming customer engagement while building an exceptional workplace culture.The RoleWe are on the lookout for a talented Front End Engineer to enhance the user experience of Hook’s products. You will collaborate with our design and product teams to translate complex data and workflows into seamless, user-friendly interfaces. Utilizing TypeScript and cutting-edge front-end frameworks, your work will result in fast, scalable, and user-approved interfaces.This role offers you the chance to take ownership of features from inception to deployment while having a real impact on our front-end architecture and practices as we expand.Your ResponsibilitiesDesign and implement high-quality, maintainable front-end features using TypeScript and frameworks like React.Work closely with product designers to create polished, user-centric interfaces.Convert complex data insights into clear, engaging visualizations and dashboards.Optimize components for speed, scalability, and accessibility across various browsers and devices.Contribute to the evolution of our front-end architecture and development standards.Collaborate with back-end engineers to design APIs and integrate new functionalities.Provide innovative ideas that shape the appearance and performance of Hook’s product.Who You AreA proficient front-end engineer with extensive experience in TypeScript, React, and modern web technologies.Dedicated to building performant, accessible interfaces that enhance user experience.

Front-End EngineerLocation: LondonDESCRIPTIONJoin us in revolutionizing the video production and distribution landscape with our innovative cloud-based platform designed for live, social, and mobile content. Our cutting-edge platform simplifies the complexities of professional video creation and dissemination, and we proudly collaborate with industry giants such as Sky Sports, BT Sport, Eurosport, and many others.As a part of our team, you will play a crucial role in working alongside top broadcasters and rights holders, while integrating seamlessly with major social media platforms like Facebook, Instagram, and YouTube. Our partnership with Facebook Live makes us a preferred global choice for live streaming solutions.Powered by Amazon Web Services, our platform is meticulously designed for scalability and high availability, ensuring that our global client base receives uninterrupted service. Here, you will thrive in an agile environment where you can experiment with the latest technologies without sacrificing reliability or speed.We believe in nurturing talent from the ground up, which is why we focus on hiring talented graduates and junior engineers. On your first day, you will be paired with a dedicated mentor who will support you in overcoming technical challenges and help you carve out your niche within our dynamic team, whether it's in video, data, front-end, architecture, or streaming. Regular performance evaluations will guide your career progression.We are committed to fostering a happy and engaged workforce, encouraging our engineers to leverage the latest technologies and take on comprehensive responsibilities from design and architecture to production support. This unique approach has cultivated a supportive environment that retains top talent, with many of our senior engineers starting as graduates and advancing to leadership roles.We value camaraderie and enjoy social activities as a team, ensuring that our workplace feels like a family. If you are passionate about technology and innovation, then you are in the right place!As a Front-End Engineer, you will be integral to developing a browser-based video editing tool akin to Premiere Pro or Final Cut, crafting beautiful and reusable UI components, and tackling functionality challenges within our web applications. You will work with state-of-the-art technologies such as Media Source Extensions, Canvas, React, ES6, Webpack, styled-components, and Storybook.Join us and continue your journey of learning and growth!

Join us at Magentic as a Front-end Product Engineer and play a pivotal role in revolutionizing how professionals at leading global companies utilize AI in their everyday tasks. Here, you will have the opportunity to influence the core product experience for enterprise users as they collaborate with advanced AI agents to achieve unprecedented outcomes.If you are passionate about exploring the latest advancements in human-computer interaction, this is the place for you.We are at the forefront of AI innovation, developing next-generation agentic systems capable of managing comprehensive procurement workflows. Our mission is to fortify global manufacturing supply chains, tapping into a $3 trillion market opportunity.Excitingly, we are backed by renowned investors including Sequoia Capital, and you will be collaborating with a remarkably talented team comprised of experts from OpenAI, Meta, Revolut, NASA, and McKinsey.

Join us as a Front-end Engineer at Magentic, where you will play a pivotal role in shaping the way leading enterprises interact with AI on a daily basis. You will enhance the core product experience for users as they collaborate with AI agents to achieve what they once thought was impossible.If you’re passionate about human-computer interaction and eager to work at the forefront of AI technology, we want to hear from you!We are breaking new ground with innovative agentic systems capable of managing entire procurement workflows. Our mission is to empower global manufacturing supply chains to adapt in a constantly evolving world, targeting a $3 trillion market opportunity.Excitement continues as we are backed by top-tier investors, including Sequoia Capital, and you will be collaborating with a highly skilled team drawn from industry giants such as OpenAI, Meta, Revolut, NASA, and McKinsey.

Role Overview Vega is hiring a Front-end Engineer in London. This position focuses on building and improving web interfaces that serve a wide range of users. The work centers on creating responsive, accessible designs and collaborating with colleagues from different teams. What You Will Do Work with cross-functional teams to design and implement user interfaces Use HTML, CSS, and JavaScript to build and refine web pages Contribute to a consistent and positive user experience across Vega’s products Ensure designs adapt smoothly to different devices and screen sizes Key Skills Proficiency in HTML, CSS, and JavaScript Experience developing responsive web interfaces Ability to collaborate with team members from different disciplines This role is based in London.

About Clear Street:At Clear Street, our mission is to empower sophisticated investors with seamless access to every asset across various markets, all through a unified platform designed for speed, transparency, and scalability.We equip our clients with cutting-edge technology, tools, and services that were once exclusive to the largest financial institutions, all rebuilt on modern infrastructure. Our cloud-native, end-to-end capital markets platform not only supports investor growth today but is also revolutionizing their interactions with markets for the future.Discover more at https://clearstreet.io. The Role:As a Senior Front-end Software Engineer, you will play a pivotal role in developing our flagship product, Clear Street Studio, offering a state-of-the-art prime brokerage experience. You will confront challenging problems that require careful trade-offs to deliver clean and efficient solutions. Your expertise will elevate our standards in providing exceptional solutions that enhance user experience and maintain high service level agreements (SLAs).This position is integral to engineering the next iteration of our advanced Studio (portal) tailored for a diverse clientele, including hedge funds, traders, and portfolio managers.

Join Multiverse, an innovative upskilling platform at the forefront of AI and technology adoption. We partner with over 1,500 organizations to reshape the workforce through transformative learning experiences.Our apprenticeships cater to individuals across all ages and career stages, equipping them with essential AI, data, and tech skills. Our learners have generated more than $2 billion in ROI for their employers by applying their new skills to enhance productivity and performance metrics.In June 2022, we secured a $220 million Series D funding round, co-led by StepStone Group, Lightspeed Venture Partners, and General Catalyst, achieving a post-money valuation of $1.7 billion and becoming the UK’s first EdTech unicorn.With a robust operational presence and a team of over 800, we have ambitious plans for further expansion. Our vision is to create a world where technology skills unlock individual potential and drive results. Become part of Multiverse and help us empower the workforce to thrive in the age of AI.We believe that the most remarkable user experiences arise from the synergy of outstanding design and engineering. We are seeking a Front End Engineer focused on our Design System, which is pivotal in delivering top-tier UX to nearly half a million learners.Design engineering is a diverse field; we welcome both design-savvy engineers and technically inclined designers. You'll be instrumental in developing our design system and other essential frontend projects while exploring how emerging technologies (AI, agentic tools) can revolutionize development practices.The OpportunityAs part of a multidisciplinary team that encompasses brand, product design, and engineering, your primary focus will be to enhance and evolve Multiverse’s design system, ensuring our suite of applications is consistent, accessible, and high-performing at scale.Additionally, you will investigate how agentic workflows and AI-driven tools can facilitate innovative working methods—allowing teams to prototype, experiment, and implement changes across applications swiftly. Your contributions will redefine collaboration between design and engineering and help pioneer the next generation of design engineering at Multiverse.What We Mean by an “Agentic Design System”We aim to elevate our design system to enable swift modifications across our applications in minutes, rather than days.Our goal is to empower product and design teams to prototype and experiment without compromising quality through vibe-coded interfaces.We seek to provide our developers and designers with top-tier tools to enhance their creative processes.

About OLIXAt OLIX, we are at the forefront of a technological revolution. As AI technology evolves at an unprecedented rate, we face a significant infrastructure challenge. The old hardware paradigms are no longer sufficient to meet the skyrocketing demands of the industry. Our solution, the Optical Tensor Processing Unit (OTPU), is poised to redefine the standards of performance and energy efficiency, paving the way for the next century's economic advancements.The Role:We are seeking an Engineering Manager for our Frontend Compiler team. In this pivotal role, you will lead a dynamic group of six engineers, overseeing the frontend of our OTPU compiler stack. Your responsibilities will span from machine learning framework ingestion to MLIR-based intermediate representation (IR) design and its transformation. Collaborating closely with backend compiler teams, architecture, and customer integration teams, you will ensure that our frontend choices lead to a superior customer experience and optimal hardware performance.As an experienced engineering manager, you will harness your technical acumen and proven leadership skills to cultivate an exceptional team focused on achieving tangible customer and business outcomes. Your ability to foster tightly-knit collaboration across various disciplines will be crucial in driving our projects forward efficiently.

About EdraAt Edra, we tackle one of the most complex challenges in enterprise AI: while AI models are broadly applicable, company processes are uniquely tailored. Our innovative AI agents learn the intricacies of these processes and optimize their operations accordingly.As a Series A startup backed by Sequoia and other top venture capital firms, we're rapidly expanding our teams in New York and London. Our engineering team consists of highly skilled engineers, AI researchers, and strategic thinkers who share the conviction that extraordinary talent is the cornerstone of groundbreaking innovations.The RoleWe are on the lookout for Product Engineers who are passionate about the art of software development. Ideal candidates will excel in strong typing, thoughtful API design, and robust data modeling, ensuring our systems are enjoyable for other engineers to engage with. As an early member of the engineering team at Edra, you will not only influence product development but also help shape our engineering culture, tooling, and foundational technologies.Our approach is both intentional and thorough. We believe there should be no divide between building and shipping; you will transition from the drawing board to production and assume full responsibility for the results. We prioritize crafting robust solutions over hastily delivering fragile outputs, and we view speed and quality as mutually reinforcing, rather than opposing factors.What You'll DoDevelop high-quality user-facing product experiences primarily using TypeScript and React.Engage in frontend architecture decision-making.Collaborate closely with design teams to contribute to product direction and design, articulating clear rationale behind interface decisions.Take ownership of your projects: gather context, manage dependencies, and drive tasks to completion autonomously.Adapt to various roles as necessary, whether building a component library, collaborating with designers, or debugging issues at the API level.Work collaboratively within a cross-functional team of engineers and AI specialists.Shape the technical direction by selecting tools, establishing patterns, and setting conventions that the team will rely on for years to come.Commit to continuous personal growth and knowledge sharing within the team.While primarily focused on frontend development, a solid understanding of backend systems will be necessary for troubleshooting.

Join a Transformative OrganizationAt Palantir, we create groundbreaking software that revolutionizes data-driven decision-making and operations. Our platforms empower partners to develop life-saving medications, anticipate supply chain disruptions, locate missing children, and much more by delivering crucial data to those who need it most.About the RolePalantir Foundry is an all-encompassing platform designed for data-driven decision-making. We are redefining how organizations securely integrate their data, enabling them to construct reliable and essential applications on a unified foundation. Our clients utilize Foundry to conduct in-depth analyses that drive core operational strategies. They can also develop sophisticated applications such as operational dashboards, alert management systems, and resource allocation tools powered by advanced machine learning models.As a Senior Front End Software Engineer specializing in application development for Foundry, you will play a key role in designing the tools employed by thousands of users to create the advanced applications that fuel their businesses. Your responsibilities will include architecting and developing user interfaces, managing state, and implementing access patterns to facilitate data-intensive workflows that are both powerful and user-friendly. One day, you may engage with users to gain insights into their needs and pinpoint product enhancements; the next, you could collaborate with your teammates to address intricate UX challenges by integrating customer feedback and insights from various industries.You will routinely tackle complex technical challenges that require you to outline solution designs and identify incremental steps for delivering new features. This includes owning the APIs and schemas that underpin your frontend code and collaborating with backend engineers to develop them.We seek engineers who are dedicated to solving real-world issues and enabling both developers and end-users to achieve optimal results. If you are passionate about creating reliable, high-performance, and scalable systems, as well as designing robust APIs and primitives, this role offers a unique opportunity to significantly influence our products and the individuals who utilize them.Frontline OpportunityFoundry Software Engineers may have the chance to participate in Frontline, a distinctive program that offers a short-term assignment with customers. This immersive experience allows you to work directly with users, gaining valuable insights into how our products are applied and the challenges faced by our clients. Unlike traditional engineering roles, Frontline exposes you to complex, ambiguous problems, empowering you to innovate solutions that directly enhance user experiences.

At Synthesia, the preeminent AI video platform for businesses, we empower over 90% of the Fortune 100 to enhance their visual communication. Established in 2017 and headquartered in London, our teams span Europe and the US, dedicated to reshaping how organizations communicate and develop skills.As AI redefines the workplace, we strive to create innovative solutions that keep people at the heart of successful enterprises.With our recent $200 million Series E funding round, we are now valued at $4 billion, with total funding exceeding $530 million from esteemed investors, including Accel, NVentures (Nvidia's VC arm), Kleiner Perkins, GV, and Evantic Capital, along with the founders and operators of Stripe, Datadog, Miro, and Webflow.

Join Jane Street as a Front End Software Engineer, where your passion for front-end development and user-interface design will drive the creation of innovative browser-based tools for our trading infrastructure. As we cater to expert users, our goal is to uphold an exceptional user experience while crafting tools that are both flexible and powerful enough to meet the demands of our highly engaged clientele. In this role, you will not only contribute to individual tools but also identify opportunities to develop libraries and abstractions that encapsulate common interaction patterns, enhancing our development practices and overall approach to UI development.

We encourage you to apply for the position that aligns most closely with your skills and experience. If our team identifies a better fit for you in another role, we will reach out with that opportunity.Position Overview:As a Front-end Developer at Squarepoint, you will play a pivotal role in enhancing the user experience on our advanced research and trading platforms. Utilizing React and TypeScript, you will create fully-functional applications that enable real-time data access and facilitate the exploration of extensive data sets crucial to our trading workflows and operations.Your efforts will significantly contribute to swift decision-making and help maintain our competitive edge in a fast-paced trading landscape.

Role Overview Methods is hiring a Front-End Developer in London. This role focuses on building responsive, interactive user interfaces that improve the experience for end users. Collaboration with designers and back-end developers is a regular part of the work, ensuring web applications function smoothly and look polished. What You Will Do Develop user interfaces for web applications Work with designers to translate visual concepts into code Coordinate with back-end developers to integrate APIs and services Ensure applications are responsive across devices Location This position is based in London, England, United Kingdom.

Kaluza is looking for a Software Engineer II with a focus on front end development. This role is available in Bristol, Edinburgh, or London. Key responsibilities Collaborate with cross-functional teams to design and build features for Kaluza’s platforms. Develop responsive, high-performing user interfaces. Contribute to scalable applications that enhance the user experience. Work locations Bristol, England, United Kingdom Edinburgh, Scotland, United Kingdom London, England, United Kingdom

At Solve Intelligence, we are revolutionizing the global Intellectual Property landscape with cutting-edge AI infrastructure. We are seeking an innovative Full-Stack Engineer with a Front-End Focus to shape the future of human interaction with next-generation AI technology. Role Overview: Full-Stack EngineerJoin our exceptionally skilled engineering team in London, where chat interfaces are just the beginning. Your contributions will go beyond dashboard creation to redefine UI/UX paradigms for AI-assisted legal workflows, crafting interfaces that did not exist just 18 months ago.Your Responsibilities:AI Interface Design: Spearhead the development of our user interface, transcending basic chat to create advanced, intuitive tools tailored for intricate IP processes.Feature Development: Quickly prototype and deploy new features informed by direct customer feedback from prestigious law firms.Full-Cycle Delivery: While your expertise lies in front-end development, you will also engage in back-end tasks to ensure smooth, reliable, and rapid feature implementation.Document Editor Integration: Take ownership of integrating and customizing sophisticated document editors (like TinyMCE/CKEditor) to meet the rigorous drafting needs of patent attorneys.Engineering Standards: As a key early team member, you will help establish benchmarks for code quality, development speed, and design excellence across our entire tech stack. About Solve IntelligenceWe are a rapidly growing startup that is transforming the Intellectual Property industry.Growth: Consistent 20-30% month-over-month revenue growth, serving over 200 global IP teams including DLA Piper and various tech boutiques and enterprises.Proven Efficiency: Our users report significant efficiency gains of 50-90% utilizing our AI platform.Investment: Recently highlighted in Sifted after our $40M Series B funding announcement, bringing our total funding to $55M from top-tier investors including Y Combinator, 20VC, Visionaries, and others.

Join our dynamic team at dev2 as a Front End Developer specializing in innovative flight solutions. We are looking for a creative and skilled individual who is passionate about building user-friendly web applications. You will collaborate with designers and backend developers to create seamless and engaging user experiences.Your role will involve utilizing cutting-edge technologies to enhance the functionality and aesthetic of our flight-related applications. If you thrive in a fast-paced environment and are eager to contribute to the aviation industry, we want to hear from you!

We are seeking a talented Front End Developer with a strong background in Vue.js to join our dynamic team in Central London. As a key player in our development projects, you will be responsible for building user-friendly web applications that deliver exceptional user experiences.Your expertise in Vue.js will be crucial as you collaborate with designers and back-end developers to create seamless interfaces. You will have the opportunity to work on exciting projects that drive innovation and improve our products.