Principal Backend Engineer at Monzo | Remote (UK)

Motorway is looking for a Mid-Level Frontend Engineer based in London. The focus is on building and refining web applications that support real customer needs. This position works closely with designers and backend engineers to transform concepts into reliable, polished features. Role overview The main responsibility is to develop and maintain web applications that are both user-friendly and visually appealing. Collaboration is a key part of the workflow, ensuring that each feature meets both design standards and technical requirements. What you will do Build and update web applications with a focus on usability Work alongside designers to create attractive, effective interfaces Collaborate with backend engineers to deliver complete product features Help develop solutions that enhance the overall customer experience

The Opportunity:We are seeking talented and motivated software engineers who take pride in their craft to join our Engineering team in London. As a successful candidate, you will collaborate with a cross-functional team that includes product managers and designers to deliver impactful solutions for both internal and external stakeholders. You will take ownership of the challenges your team tackles, ensuring that we maintain a high standard of quality in all our releases while being part of a high-performing international development team. If you are passionate about solving problems with code and desire to work with exceptional colleagues in a dynamic environment, this role is an excellent fit for you. Your Role:Design Solutions: Formulate optimal technical solutions to business challenges, contributing to an architectural vision aimed at positioning us as the world’s leading research platform.Ship Working Code: Primarily working with React on the frontend and Kotlin microservices with Postgres on the backend, along with legacy services in Ruby on Rails. We continually explore new technologies to enhance our stack.Deploy and Iterate: We frequently release updates to our users, utilizing CircleCI and Spinnaker for CI/CD, and swiftly gather feedback to inform subsequent iterations.Build Your Competency: Accelerate your learning by developing cutting-edge technology alongside experienced colleagues in a high-performance atmosphere. Engineers have access to our Learning & Development budget to enhance specific technical skills.Maintenance and Troubleshooting: Diligently monitor our services, identifying issues before users are impacted, diagnosing root causes, and deploying effective fixes. Who You Are:You likely hold a degree in a STEM field, but we welcome candidates who have honed their skills through alternative paths.Relevant Experience: You have worked at a similar level in a well-established Engineering team and are eager to elevate your career. We seek individuals with exceptional potential.Technical Proficiency: Frontend expertise with at least one framework, preferably React.Proven Impact: You have a track record of making significant contributions in your previous roles.

Location: London Start date: Immediate The Role: We are seeking exceptionally skilled and motivated software engineers who take pride in their craft to enhance our Engineering team based in London. As a successful candidate, you will collaborate within a cross-functional team that includes product managers and designers, working closely with the wider business to deliver effective code that addresses real-world challenges for both internal and external clients. You will take charge of the services overseen by your team, ensuring their development aligns with the overarching AlphaSights Engineering strategy, while also mentoring junior engineers. If you are passionate about problem-solving through coding and aspire to work alongside outstanding colleagues in a high-achievement environment, this position is ideal for you. What You’ll Do: Design Solutions: Define optimal technical solutions to business problems, contributing to a scalable architectural vision that aims to become the world's leading research platform. Ship Working Code: Our primary tech stack consists of React for the frontend and Kotlin microservices with Postgres for the backend, alongside some legacy services built in Ruby on Rails. We continually assess new technologies that could enhance our stack. Deploy and Iterate: We release updates frequently to our customers, utilizing CircleCI and Spinnaker for CI/CD, gathering feedback promptly to inform subsequent iterations. Build Your Competency: You will rapidly advance your skills by developing market-leading technology alongside experienced colleagues in a high-performance environment. Engineers can also utilize our L&D budget to accelerate their development of specific technical competencies. Maintenance and Troubleshooting: Diligently monitor our services to catch errors proactively, diagnose root causes, and deploy fixes before users are affected. Who You Are: You likely hold a degree in a STEM subject, but we are also open to candidates who have honed their skills through alternative pathways. Experience: Proven experience at a similar level within a mature Engineering team, with aspirations to elevate your career. We seek individuals with outstanding potential. Technical Expertise: Extensive knowledge in frontend engineering, including designing, building, and maintaining robust web applications.

blp-digital is looking for a Senior Frontend Engineer to work onsite in London. This role centers on building modern web applications, working closely with both designers and backend developers to deliver user experiences that are intuitive and reliable. Key responsibilities Lead the frontend development of both new and existing web applications Collaborate with designers to turn concepts into polished, effective interfaces Work with backend engineers to ensure seamless integration between frontend and backend systems Work location This position requires working onsite at the London office.

The Role: We are seeking exceptionally talented and motivated software engineers who take pride in their craft to join our Engineering team based in London. Successful candidates will become an integral part of a cross-functional team comprising product managers and designers, collaborating closely with the entire organization to produce effective code that addresses real-world challenges for both internal and external clients. You will have ownership of the issues that your team tackles, maintaining a high standard of quality in all releases while working within a top-performing international development environment. If you are passionate about solving problems with code and aspire to work alongside exceptional colleagues in a high-achieving atmosphere, this opportunity is perfect for you. What You Will Do: Design Solutions: Identify optimal technical solutions to business challenges, contributing to an architectural vision aimed at establishing the world's leading research platform. Ship Working Code: Our primary tech stack includes React for frontend development and Kotlin microservices with Postgres for backend, alongside some legacy services in Ruby on Rails. We maintain a proactive stance on evaluating new technologies that could enhance our stack. Deploy and Iterate: We frequently deploy to our customers, utilizing CircleCI and Spinnaker for CI/CD, and rapidly gather feedback to guide our next iterations. Build Your Competency: You will quickly learn by developing market-leading technology alongside experienced colleagues in a high-performance environment. Engineers have access to our L&D budget for the accelerated development of specific technical skills. Maintenance and Troubleshooting: Vigilantly monitor our services, identifying errors before they impact users, diagnosing root causes, and deploying effective fixes.

About LendableLendable is committed to revolutionizing the way individuals access credit and save money. As one of the UK's most dynamic fintech firms, we are proud to have achieved significant milestones:Recognized as one of the UK’s newest unicorns, with a growing team of over 700 professionals.Ranked among the fastest-growing technology companies in the UK.Profitable since 2017.Supported by leading investors such as Balderton Capital and Goldman Sachs.Highly rated by customers, boasting a 4.9 rating on Trustpilot based on thousands of reviews.We have successfully reimagined the Big Three consumer finance products: loans, credit cards, and car finance, enabling us to deliver funds to our customers in minutes rather than days.As we continue to expand, our ambitions are set on capturing the two largest Western markets—the UK and the US—where vast financial resources remain tied up in outdated systems and cumbersome processes.Why Join Us?Empower Yourself: Enjoy the autonomy to make impactful decisions that shape the success of Lendable from day one.Collaborate with Talent: Work within intimate teams of exceptional individuals who are adept at problem-solving and innovative thinking.Innovate In-House: Develop cutting-edge technology using advanced data sources, machine learning, and AI to streamline operations.About the RoleWe are seeking a skilled Mid-Level PHP Engineer to enhance our UK Loans team.Our engineering division consists of over 160 dedicated engineers across various disciplines, including backend, frontend, mobile, and platform.In this role, you will engage in diverse activities, from creating and integrating new APIs to improve the customer experience, to optimizing our lending platforms and participating in in-depth architectural discussions. There are numerous challenges ahead, and we are eager to find the right talent to join us.

Location: London Start date: Immediate The Role: Join AlphaSights as a dynamic and motivated Mid-Level Test Engineer within our Software Engineering Team. As a digital business, we prioritize continuous uptime, product quality, and exceptional user experience. This role is a crucial opportunity to make an immediate impact on our product development. Collaborating closely with Software Engineering and Product Management, your focus will be on designing and implementing automated testing solutions that ensure our applications are reliable, scalable, and adhere to the highest standards across frontend, backend, and APIs. In this position, you will be entrusted with specific areas of responsibility and expected to manage your time effectively. A positive, problem-solving mindset is essential, as is a passion for delivering seamless user experiences through robust test automation in a fast-paced environment. We seek a proactive and creative individual who enjoys collaboration and is dedicated to both personal growth and team success. You will have opportunities for on-the-job and classroom-based learning, diving into the field of IT with exposure to various technologies, regions, and challenges. Working primarily with teams in London and Portugal, you will also engage with colleagues from other offices across EMEA, the US, and Asia. What You’ll Do: Design and develop automated test plans and suites for various projects, validating software functionality and ensuring comprehensive regression coverage. Develop and maintain automated testing frameworks and infrastructure, providing tools for developers to test their own code. Lead test automation initiatives and conduct targeted manual testing as needed, such as exploratory testing, UI validation, and edge case verification. Create, manage, and maintain test data to support automated testing across environments, ensuring consistency and reproducibility of results. Support robust testing through API test automation, test data management, and cross-platform validation across browsers and devices. Collaborate with cross-functional teams to enhance product quality and user experience.

Join Our Innovative Team at FreetradeAt Freetrade, we're on a mission to simplify investing, making it accessible and affordable for everyone. Our goal is to empower individuals to maximize their savings and grow their wealth.We're building an exceptional team of innovators who are passionate about transforming the investment landscape. If you're someone who thrives on tackling challenging problems and crafting cutting-edge products, you will find your place here.The upcoming year, 2026, promises exciting developments for us. Following our partnership with IG Group, we will continue to operate independently while benefiting from their extensive resources and expertise.This year, we aim to elevate our offerings by introducing new features such as mutual funds, bonds, and family investment tools. We're also exploring the integration of AI to enhance our customer experience further.Why You Should Join Our Engineering Team?Become a crucial part of a team that is redefining the investment future. As a Software Engineer, you will be instrumental in creating and maintaining a robust and scalable platform that serves thousands of users daily. We embrace complex technical challenges, foster innovation, and develop solutions that make a tangible difference. Here, your contributions will influence investment decisions throughout the UK. Join us to transform ideas into reality.We are on the lookout for a talented Mid-Level Software Engineer to join our Backend Engineering team.Our Primary Tech Stack:NodeJS/TypescriptGoogle Cloud PlatformPostgreSQLKey Responsibilities:Deliver high-quality software solutions within set timelines, tackling complex problems by proposing multiple solutions and evaluating trade-offs to assist your team in making sound technical decisions.Address technical challenges by providing scalable and maintainable solutions efficiently, considering trade-offs.Understand the core features and KPIs of your product, collaborating closely with the Product Manager to drive product development.Be prepared for on-call responsibilities, effectively responding to high-priority issues and knowing when to escalate them.About You:You have a solid background in software engineering, with experience in the technologies we use.

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!

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

Our CultureAt Quantum Metric, our primary goal is to cultivate a happy, diverse, and inclusive workforce. We are dedicated to empowering our employees to reach their full potential by offering tailored coaching and training programs to accelerate their career paths in any direction they choose.As a remote-first organization, we appreciate the significance of fostering an engaged, diverse, and enjoyable work environment. We organize regular company-wide events, seasonal challenges, and local outings to balance out our virtual interactions. Furthermore, we have various Employee Resource Groups that create safe spaces to discuss and reflect on topics that affect us both personally and professionally, including navigating SaaS for the first time or overcoming obstacles faced by individuals from underrepresented backgrounds.We are equally passionate about building strong connections with our clients. You will not only collaborate with some of the most renowned brands globally but also establish lasting partnerships.At Quantum Metric, we value diverse experiences and educational backgrounds and do not expect you to fulfill every qualification for this position. What matters most is the unique perspective you can contribute and your commitment to our core values of passion, persistence, and integrity. About the RoleAs a Solutions Engineer at Quantum Metric, you will provide exceptional pre-sales technical support to the sales team. Engaging directly with customers, you will serve as the subject matter expert in customer experience management and Quantum Metric's offerings. Your responsibilities will include delivering product demonstrations that directly address customer pain points and highlight Quantum Metric's industry-leading CXM solutions. Throughout the sales cycle, you will lead proof of concepts, showcasing Quantum Metric's capabilities to meet and surpass customer expectations, often within their production environments.

Join our passionate team at Ledger, where we are dedicated to redefining the landscape of digital ownership. Our mission is to empower users, creators, and enterprises to take control of their value with unparalleled freedom through technology that is accessible to everyone. We thrive on innovation, fostering a culture of curiosity and problem-solving that encourages every team member to challenge norms and develop groundbreaking solutions. At Ledger, we are committed to making self-custody accessible, giving individuals the keys to their financial futures. If you’re eager to make a significant impact, we invite you to become part of our journey.As the leading global platform for digital assets and Web3, Ledger secures over 20% of the world’s crypto assets through our advanced hardware wallets, with more than 7.5 million units sold across 200 countries. With headquarters in Paris and offices in various locations including London, we employ around 600 skilled professionals dedicated to developing secure products and services that allow individuals and businesses to manage their crypto assets with confidence.The TeamYou will be an integral part of the E-commerce Engineering team, which is responsible for the entire customer experience on ledger.com. This team oversees the customer journey from discovery to checkout, utilizing a modern technology stack (Next.js, Shopify, Contentful, Vercel) to deliver high-performance, conversion-optimized experiences.In our dynamic, product-focused environment, we prioritize frequent deliveries and continuous optimization in performance, SEO, and conversion rates.What You’ll Be DoingAs a Senior Frontend Engineer, you will play a pivotal role in shaping the web experiences that millions of customers rely on. This hands-on position involves significant ownership, where you will lead complex projects from conception through to production, influence technical direction, and uplift team standards through mentorship.Your responsibilities will include:End-to-End Project OwnershipLead the development of impactful features from inception to deployment.

Senior Frontend Engineer - Elevate User Experiences Are you a seasoned Frontend Engineer looking to make a significant impact? Join our dynamic and agile delivery team at ClearScore, where we are dedicated to crafting innovative experiences for our users through the latest technologies. If you thrive in a high-performance, entrepreneurial environment that celebrates the art of developing cutting-edge products and tackling complex challenges, we want to hear from you! As a valued member of our established cross-functional squad, you will focus on advancing our design system, enhancing our logged-out website, and exploring other groundbreaking technologies. We foster a culture of continuous improvement and creativity, inviting new team members to share their ideas and methodologies. Bring your expertise, and we'll share our knowledge in a collaborative and enjoyable atmosphere. At ClearScore, our world-class engineers are pivotal in fulfilling our mission to enrich the financial lives of millions. To learn more about our technology stack, visit our 2026 Tech Radar. Discover our work culture through our Behavioural Principles and Engineering Principles. Explore additional insights on our Tech Blogs on Medium. Your Responsibilities: Design, develop, and maintain full-stack solutions using Node.js and TypeScript, delivering data-driven user interfaces and backend services. Create intuitive client UX utilizing design systems and server-driven UI frameworks. Optimize and scale databases for large-scale applications, employing SQL, PostgreSQL, and indexing strategies to ensure performance and maintainability. Collaborate closely with skilled colleagues to implement, monitor, and optimize real-time data pipelines with Kafka, ensuring robust message handling and distributed system performance to enhance your features. Take ownership of end-to-end performance optimization, both client-side and server-side. Lead the deployment and maintenance of production-grade code and databases across multiple global markets. Monitor post-release performance, utilizing tools for reliability and system health. Engage in an Agile environment, mentoring team members across various specializations and fostering a culture of learning and continuous improvement.

About Kernel Kernel builds AI-powered data solutions for RevOps teams working with CRM systems. The company is supported by $14M in Series A funding from investors linked to Plaid, OpenAI, and Slack. Kernel aims to provide an AI-first alternative to established data providers like Dun & Bradstreet. Teams at organizations such as Navan, Gong, Mistral, and AlphaSense use Kernel's products to streamline and improve their operations. The engineering team manages around 30 billion tokens daily and runs more than 1.8 million agents, all on a streamlined architecture with a single database and queue. For scale, Kernel's queue processes about 365 million transactions each day, comparable to Visa's daily volume. All of this is achieved by a small, focused team. Role Overview Kernel is looking for a Frontend Product Engineer in London. This is a T-shaped role with a strong emphasis on frontend work. The position involves working closely with both product and engineering to design and ship user-focused features, maintain infrastructure, and support Kernel's growth. While deep design skills are not required, a solid grasp of UI/UX principles and a sharp eye for detail matter. The team values proactive, adaptable engineers who communicate clearly. With a lean structure, engineers are trusted to make decisions and ship code independently. This role offers the chance to help drive Kernel's growth from $3M to $30M ARR, taking ownership of projects from start to finish and shaping product and infrastructure decisions. What You'll Do Design and build product features that improve user workflows Work with design, product, and engineering to deliver strong user experiences Write and maintain clean, scalable code across the stack Support the performance and reliability of large-scale data operations Automate workflows to boost developer efficiency and reduce manual steps Integrate with CRMs and external APIs Join roadmap discussions and contribute technical insights What You'll Bring At least 6 years of experience in software or product engineering Strong skills with frontend technologies and frameworks

Join our dynamic team as a Mid-Level Architectural Visualization Artist, where you'll be responsible for crafting stunning photorealistic digital content that showcases proposed buildings, landscapes, interiors, or products for our prestigious clients, which primarily include architects and real estate developers. This role is studio-based, allowing for collaboration and creativity in a vibrant environment.In this position, you will: Plan and create captivating visualizations using client-supplied materials. Work closely with fellow artists to develop and refine content. Utilize rendering engines to achieve magazine-quality, photorealistic results. Incorporate feedback and adapt content accordingly. Create additional assets such as furniture and props. Take charge of your personal learning and development, documenting your progress. Prepare educational materials for our engaging Friday showcase sessions. Provide constructive feedback to your peers. Contribute to and manage an extensive library of assets. Establish effective lighting setups and compositions. Offer insights and design expertise when required. Lead smaller projects with guidance. Engage with clients and design teams under supervision. Multi-task on various deliverables across different projects.

LocationLondon, UK - Hybrid – 3 days in office - Office location: Central London (Victoria area)About the RoleJoin our dynamic team as a Mobile/Frontend Engineer where you will leverage your expertise in React Native and TypeScript to enhance and develop a tablet-based Point of Sale (POS) application.This position is perfectly suited for individuals with a strong mobile development background grounded in frontend technologies. Most of our codebase is built using React Native, along with a bit of Next.js for our web interfaces.You will focus on elevating UI quality, optimizing performance, and crafting new features in a fast-paced startup setting where AI technology is an integral part of our development process.Key ResponsibilitiesDevelop and maintain features for our tablet-based POS applicationUtilize React Native and TypeScript extensivelyEnhance UI/UX quality and streamline the existing codebaseRefactor and optimize frontend code for improved performance and reliabilityCollaborate with product engineers and backend developersRapidly deliver new features while ensuring high standards of code qualityEffectively utilize AI-assisted development toolsRequired Experience & SkillsProven experience with React Native and TypeScriptBackground in frontend engineering (JavaScript, React ecosystem)Experience in developing mobile or tablet applications (excluding native Swift/Kotlin)Ability to enhance and maintain existing codebasesExperience in startup or fast-paced settingsAdept at rapidly iterating on product featuresPreferred QualificationsFamiliarity with Next.jsExperience in POS, payment systems, or fintech productsUnderstanding of AI-driven development workflowsExperience collaborating with product or design teamsWhat We ValueWe seek front-end engineers who are passionate about their craft and committed to delivering exceptional user experiences.

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.