Senior Full Stack Engineer I Growth Marketing Technology jobs in London – Browse 5,608 openings on RoboApply Jobs

Senior Full Stack Engineer I Growth Marketing Technology jobs in London

Open roles matching “Senior Full Stack Engineer I Growth Marketing Technology” with location signals for London. 5,608 active listings on RoboApply Jobs.

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runna logorunna logo
Full-time|On-site|Runna London

Join a dynamic team creating the leading training platform for runners!At Runna, we're dedicated to transforming everyday runners into elite athletes through our state-of-the-art app that offers world-class training, coaching, and a vibrant community. Whether you're aiming to improve your 5k time or gearing up for your first marathon, we are here to help you…

Jan 23, 2026
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Runna logoRunna logo
Full-time|On-site|Runna London

Join Our Visionary Team to Create the Premier Training Platform for RunnersAt Runna, we empower everyday runners to achieve their best by developing an exceptional app that offers top-tier training, coaching, and community support. Whether you're aiming to enhance your 5k performance or prepare for your inaugural marathon, we're here to guide you every step of the way.Our growth trajectory is remarkable! In November 2023, we successfully secured a $6.5M funding round led by JamJar, with contributions from Eka Ventures, Venrex, and Creator Ventures. In 2024, we were honored to be recognized by Apple as one of three global finalists for the iPhone App of the Year, showcasing the innovation and impact of our platform. The journey continued with our acquisition by Strava in 2025!Our aspirations are ambitious: we aim to be the leading global training platform for millions of runners worldwide. As we evolve with purpose, we seek passionate individuals who want to contribute to something meaningful and impactful. With Strava's recent acquisition propelling our mission forward, this is an extraordinary time to become a part of our journey. The Growth Team You’ll Be JoiningWe are on the lookout for a skilled, inquisitive, and experimentation-driven Senior Full Stack Engineer to join our Growth Engineering team. This team is responsible for critical aspects of the user journey at Runna, focusing on both web and app platforms to craft high-quality experiences that convert first-time visitors into dedicated subscribers. You will collaborate closely with product, design, and data teams, as well as our founders and CTO, to enhance how new users discover and engage with Runna.Your ResponsibilitiesDesign, develop, test, and deploy high-impact user journeys and subscription funnels aimed at transforming curious visitors into active, engaged subscribers.Create and execute experiments across both web and app (including onboarding processes, paywalls, and plan discovery experiences) to optimize conversion at every stage of the user journey.Work collaboratively with Product, Design, and Data teams to identify opportunities, establish clear success metrics, and make informed decisions based on experimental outcomes.Partner with other teams to ensure users enjoy a seamless and consistent experience as they navigate through various products and platforms.Implement and sustain the instrumentation, tracking, and tools necessary for understanding user behavior, quickly identifying issues, and accurately measuring impact.Take ownership of features and initiatives that drive user engagement and retention.

Feb 23, 2026
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Stacks logoStacks logo
Full-time|On-site|London

Join Stacks, a dynamic and innovative company at the forefront of growth marketing. We are seeking a passionate Growth Marketer who will play a pivotal role in driving our marketing strategies and initiatives. You will be responsible for developing, executing, and optimizing campaigns that attract and retain customers, leveraging data-driven insights to enhance our market presence.As a Growth Marketer, you will collaborate closely with cross-functional teams to identify growth opportunities and implement effective marketing tactics. Your creativity and analytical mindset will be key in designing engaging content and utilizing various digital channels to reach our target audience.

Apr 8, 2026
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Faculty logoFaculty logo
Full-time|On-site|London

Join our innovative team at Faculty as a Senior Full Stack Software Engineer. In this pivotal role, you will leverage cutting-edge technologies to design and implement robust software solutions, driving our mission to harness AI for impactful outcomes. Collaborating with cross-functional teams, you will address complex challenges and deliver high-quality products that meet user needs.If you are passionate about technology, enjoy problem-solving, and thrive in a dynamic environment, we want to hear from you!

Feb 24, 2026
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Fleek logoFleek logo
Full-time|On-site|London

Join Us in Revolutionizing the Fashion Supply Chain!Every year, the fashion industry generates over 100 billion garments, with a staggering 60% ending up in landfills—not due to lack of demand, but because the supply chain for secondhand fashion is outdated and inefficient.At Fleek, we are committed to changing this narrative. Our mission is to position secondhand fashion as the preferred choice, by developing a robust infrastructure that supports the global secondhand clothing market through a B2B marketplace and AI-driven systems that digitize the supply chain.With Fleek, vintage shops, online resellers, and retail buyers can source high-quality secondhand inventory directly from wholesalers and rag houses across various countries. Our innovative solution, FleekSort, is an AI model specifically designed for secondhand fashion, enabling grading, pricing, and categorization of items with just a photo, transforming an opaque and manual trade into a clear, searchable, and tradable global inventory.Since our inception in 2022, we have rescued 9 million items from landfills and have seen our growth triple year-on-year. We have successfully raised approximately $50M from leading investors such as a16z, Y Combinator, Burda Principal Investments, and HV Capital, and recently completed our Series B funding round. Our advisors and private investors include key figures from Depop, Shopify, and Postmates.Currently, we cater to thousands of resellers and retailers across the UK, Europe, and the US. With projections of the secondhand fashion market reaching $350B by 2027, Fleek is poised to establish the AI-powered operational and financial backbone for global secondhand commerce.Are you ready to contribute to a cause that truly matters and drive change swiftly? If so, we want to hear from you!About the RoleWe are on the lookout for a highly technical and innovative Full-Stack Growth Builder who will redefine how customer lifecycle marketing propels growth at Fleek. This role transcends traditional CRM responsibilities; you will design and implement the entire system from data collection to strategic execution, making AI your primary toolkit.Your responsibilities will include creating intelligent CRM systems that identify the optimal timing, channel, and messaging for customer outreach, utilizing real-time user signals and context. You will also establish robust experimentation frameworks to accurately measure the impact of lifecycle messaging while avoiding over-attribution. Furthermore, you will spearhead the use of AI-driven content generation and personalization, ensuring a balance between scalability, quality, and relevance.As we scale our marketplace from thousands to tens of thousands of active buyers, you will be instrumental in building our data infrastructure in real-time.

Mar 20, 2026
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Ki Insurance logo
Full-time|On-site|London, England, United Kingdom

Who Are We? At Ki Insurance, our influence can be seen in various groundbreaking headlines. From insuring space shuttles to world tours, wind farms, and even the legs of footballers, our impact is substantial.Our mission aims to digitally disrupt and transform a 335-year-old industry. Collaborating with Google and UCL, we have developed a platform that leverages algorithms, machine learning, and large language models, enabling insurance brokers to receive quotes in mere seconds rather than days.As the largest global algorithmic insurance carrier, Ki is the fastest-growing syndicate within the Lloyd's of London market, achieving a remarkable $100 million in profit within just three years.Our teams consist of diverse talents working in an agile, cross-functional environment, dedicated to delivering the best possible experience for our customers. With ambitious goals ahead, we seek exceptional minds to challenge the status quo and help us explore new heights.Your Role:As a Senior Full Stack Engineer, you'll be an integral part of our development team, contributing to our broker platform, which is vital to Ki's success. Our multi-disciplinary team combines expertise in software and data engineering, full stack development, platform operations, algorithm research, and data science. We focus on delivering impactful features through an iterative and analytical approach.Your Responsibilities: Develop robust and scalable software for critical web-based applications.Create visually appealing, functional, and efficient web and mobile sites that enhance these applications.Design, build, test, document, and maintain APIs and integrations.Implement quality control through industry-standard practices such as automated testing, pair programming, and code reviews.Collaborate with the Product team to translate end-user requirements into effective technical solutions.Document technical designs and analyses.Evaluate current system architecture for growth and improvement opportunities.Construct mock-ups or prototypes for exploring and troubleshooting new initiatives.Engage with the Product team and UX designers to review designs, implement new features, and ensure an exceptional user experience.Investigate new ideas and emerging technologies, rapidly developing prototypes.Promote and enhance the engineering team’s principles and methodologies.Act as a domain expert for Ki’s core technologies.Mentor and coach colleagues in engineering and business aspects.

Nov 10, 2025
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Civic Marketplace logoCivic Marketplace logo
Full-time|On-site|London, UK

Become Our Foundational Engineering Leader at Civic Marketplace!Are you driven by the potential of technology to foster significant change within communities? At Civic Marketplace, we are innovating the process by which local governments acquire and provide essential services, crafting the most user-friendly and effective procurement platform for the future.Why Choose Civic Marketplace?We are a mission-oriented startup dedicated to reshaping the operational landscape for local governments—eliminating obstacles, streamlining workflows, and ultimately enhancing outcomes for citizens. If you thrive in a startup environment and wish to join a purpose-driven team effecting genuine change, this role is tailored for you.Who We’re Seeking:We are in search of our inaugural engineering hire—a proactive technical leader prepared to take full ownership of our technology landscape. You will spearhead our technical vision, enhance our codebase, and assemble a high-performing team to achieve our ambitious objectives. You will be a pivotal figure in our expanding organization, with the autonomy to define our technological strategy and architecture.Key Responsibilities:Lead the execution of our full-stack development initiatives, ensuring seamless ownership of code from inception to deployment. You will be our full-time lead engineer, collaborating with teams to facilitate execution through the establishment of effective processes, setting clear expectations, managing risks, resource allocation, and removing impediments.Craft a quality assurance playbook for your teams, establishing standards for code reviews, pull requests, testing, and monitoring. You will actively contribute to coding while also delegating tasks and hiring talent as necessary, including working with freelancers.Demonstrate proficiency in REACT, marketplace dynamics, payment infrastructure, and hybrid development approaches utilizing both custom and no-code/low-code solutions.Ensure your team manages the operation of data, systems, and applications in production, driving the resolution of critical issues through root cause analysis.Foster hiring, motivation, and professional growth among team members by developing a deep understanding of their motivations, strengths, and growth opportunities. Align personal growth opportunities with organizational impact.

Aug 27, 2025
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Eucalyptus logoEucalyptus logo
Full-time|On-site|UK - HQ - London

About EucalyptusAt Eucalyptus, we are dedicated to ensuring that good health lasts a lifetime. With over 1 billion individuals battling obesity globally, leading to preventable chronic conditions, our mission is to create superior long-term care solutions.Euc is the innovative force behind Juniper, one of the largest weight-management programs in the world that integrates GLP-1 medication with personalized nutrition, movement support, and clinician-led care from prescribers, nurses, health coaches, pharmacists, and dietitians. Our published clinical research indicates that our comprehensive clinical and behavioral strategies enable patients to achieve four times more weight loss during their Juniper treatment.Our Growth Story:Achieved 130% year-over-year revenue growth while reducing cash burn by 90%, securing over $100M from notable investors such as BOND, NewView, Blackbird, and Airtree.Supported more than 350k patients struggling with obesity across five international markets.Received a selective NICE endorsement to deliver services to the NHS.Customized our offerings to meet the needs of thousands of patients in Germany and Japan. Help shape Juniper and our growing product ecosystem with full-stack impactThe Shop/Ecosystem squad is committed to diversifying Juniper into new product lines and areas of care, ensuring patients find the right products and services precisely when they need them. One of the most exciting projects will be a recommendations tool, developed in close collaboration with our Data Science team, aimed at enhancing how patients engage with Juniper and various product lines across both web and mobile platforms.

Feb 21, 2026
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Flatiron Health logoFlatiron Health logo
Full-time|On-site|London office

Flatiron Health is hiring a Senior Full Stack Software Engineer for its London office. This role centers on building data-driven tools and products that support better cancer care. The team’s mission is to improve and extend lives by drawing insights from the experiences of people affected by cancer. About Flatiron Health Flatiron Health works with cancer centers across the US, Europe, and Asia, transforming real-world patient data into evidence that can inform care and research. Teams include oncologists, data scientists, software engineers, epidemiologists, and product specialists, all collaborating to advance oncology. What You’ll Do Design and build technology solutions with engineering teams based in the US, UK, Germany, and Japan. Work closely with oncologists, clinicians, product leaders, and quantitative scientists to solve technical and business challenges. Help shape team roadmaps and contribute to ongoing technical improvements. Support the growth and culture of Flatiron’s European engineering teams. Develop creative approaches to complex problems in healthcare technology. Iterate quickly on products while following engineering best practices for quality and security. Work with complex data pipelines and a range of data processing tools. Bring or build deep knowledge of the UK healthcare landscape, especially around data sources, security, privacy, and new trends. Who We’re Looking For Full Stack Software Engineer with 4-8 years of relevant experience. Comfortable working in a fast-moving setting and able to think creatively and adapt quickly. Interested in a technology-driven culture that values innovation and measurable business impact. Experienced in agile development and object-oriented programming languages such as Python, Java, C#, or SQL, and open to learning new technologies. Knowledge of healthcare systems, especially in the UK, is a plus. This role offers the chance to work alongside experts from multiple disciplines and make a meaningful contribution to cancer care through technology.

Apr 15, 2026
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Axon Enterprise, Inc. logoAxon Enterprise, Inc. logo
Full-time|On-site|London, England, United Kingdom

Join Axon, a leader in technology-driven public safety solutions, as a Senior Full Stack Engineer. In this role, you will leverage your expertise to develop innovative software solutions that empower law enforcement agencies around the globe. You’ll work on a diverse range of projects, collaborating with a talented team to build scalable applications that enhance efficiency in public safety.

Apr 29, 2026
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Fanvue logo
Full-time|Remote|Remote with London office

Join Us in Revolutionizing the Creator Economy with AIFanvue is a rapidly expanding platform at the forefront of creator monetization worldwide. Our AI-driven, creator-centric platform empowers creators to connect, engage, and earn directly from their audiences on a larger scale. After securing our recent Series A funding, Fanvue has achieved over $100M in annual recurring revenue and continues to experience triple-digit year-over-year growth, supporting countless creators and millions of fans globally.At the heart of Fanvue’s revenue model are our checkout and payment systems. This position is dedicated to developing fast, reliable, and scalable checkout and fintech solutions that significantly influence creator earnings, fan conversion, and overall revenue expansion. Your ResponsibilitiesWe are seeking a Full Stack Engineer to contribute to Fanvue’s checkout, payment, and fintech functionalities. This impactful role will focus on designing and managing end-to-end payment processes, encompassing frontend checkout experiences and backend payment services, subscriptions, and payouts.You will collaborate closely with Product, Design, and fellow engineers to rapidly deliver revenue-critical features while upholding high standards of reliability, security, and scalability. Key ActivitiesDesign, develop, and deploy comprehensive checkout and payment solutions across both web and backend platformsOwn and optimize frontend checkout processes to enhance conversion rates and reduce friction for usersDevelop and sustain backend services for subscriptions, messaging payments, and payoutsIntegrate with payment providers and manage retries, fallbacks, and edge case scenariosCollaborate intimately with Product and Design teams to explore monetization and conversion optimization strategiesEnsure payment systems are dependable, observable, and secure in a production environmentTroubleshoot and resolve issues across the entire stack, from user interface to payment processingLeverage data and experimentation to inform product and technical decisions Your ProfileProven experience in full stack engineering, with a strong focus on backend systemsProficient in navigating both frontend and backend codebasesExperience with contemporary web technologies including TypeScript, Node.js, React, and relational databases

Jan 16, 2026
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Intercom logoIntercom logo
Full-time|On-site|London, England

At Intercom, we are redefining customer service through innovative AI technology. Our mission is to empower businesses to deliver exceptional customer experiences.Our advanced AI agent, Fin, is at the forefront of customer service AI, enabling businesses to provide continuous, high-quality support. When paired with our Helpdesk, it evolves into the Intercom Customer Service Suite, offering enhanced AI support for complex queries that necessitate human intervention.Since our inception in 2011, we have gained the trust of nearly 30,000 businesses worldwide, setting new benchmarks in customer service. Our core values drive us to push boundaries, work with urgency, and create substantial value for our clients.What’s the opportunity?Our website is the heart of our brand—serving as the primary resource for information about Intercom’s products and the leading source of leads for our demand generation team. Intercom.com and Fin.ai are pivotal in bridging awareness, product marketing, demand generation, and customer support, necessitating a robust and reliable infrastructure alongside sleek user-facing interfaces.We are seeking a Senior Full Stack Engineer to join our Team Web. This role is perfect for someone who is eager to create engaging front-end experiences while also developing the backend systems and tools that support them. You will significantly influence the future of our website, engaging with product marketers, designers, and engineers throughout the organization.Explore the team's latest work here.What will I be doing?Designing, building, and maintaining comprehensive web solutions, encompassing modern user interfaces, backend services, APIs, and infrastructure.Collaborating with design, brand, marketing, and content teams to ensure seamless, high-performing experiences across web and mobile platforms.Developing backend logic and APIs, managing data flows, and integrating systems with third-party platforms.Enhancing website performance by implementing best practices in front-end development, such as lazy loading and efficient asset management.Setting up and managing infrastructure using tools like Vercel, AWS, Cloudfront, Terraform, and CI/CD pipelines.

Jan 28, 2026
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YASO logoYASO logo
Full-time|On-site|London, England, United Kingdom

About YASOYASO serves as the ultimate operating system tailored for international brands entering the Chinese market, crafted by a dedicated team of experts in China, technology, and startup operations. Our innovative plug-and-play solution seamlessly manages the entire spectrum of cross-border ecommerce and social commerce, encompassing store operations, pricing strategies, influencer collaborations, and logistics—all driven by our proprietary technology.We empower brands with complete visibility across all performance metrics, including traffic, conversion rates, revenue, influencer ROI, content management, and inventory levels. For the first time, brands can monitor and manage their business operations in China in real time, utilizing data that is transparent, measurable, and actionable.By transforming outdated legacy systems into a cohesive, data-driven infrastructure, YASO enables international brands to reclaim control over their growth trajectory in China.In light of our recent Series A funding round, we are excited to expand our global team across London, Shanghai, and beyond, as we redefine the future of cross-border retail.The RoleJoin our dynamic team to collaborate with our Product Manager and engineering professionals to develop customer-facing platform features and internal tools that facilitate a self-service experience for our enterprise customers. You will be responsible for deploying data integrations, operational tools, and independent product capabilities that are essential to scaling our customer base tenfold.Reporting directly to our Founder (James, located in London), you will engage daily with your team members, the Product Manager, and YASO's operations team in Shanghai. You will also have regular opportunities for in-person collaboration with our international teams across Europe and Shanghai.Within your first 60 days, you will have successfully deployed at least one feature that our operations team or customers utilize weekly, taking ownership of the entire process from inception to delivery.You WillDevelop end-to-end features from database schema to user interface that address genuine operational challenges and yield significant impact for our team and customers.Design and implement APIs that support both internal tools and customer-facing platform functionalities, ensuring security, scalability, and maintainability.Translate product requirements into technical solutions. Collaborate with our Product Manager to refine specifications, evaluate feasibility, and identify architectural concerns before they escalate.Take ownership of your code in production. Manage deployment, monitoring, troubleshooting performance issues, and maintaining the systems you create.Work asynchronously across time zones. Engage daily with our engineering team in Shanghai, contributing to a shared data infrastructure and our unified codebase.Participate in the EU-based on-call rotation to uphold system reliability.Influence our engineering culture through comprehensive code reviews, documentation, and sharing best practices with the team.Shape our roadmap by providing valuable technical insights on our strategic direction.

Nov 27, 2025
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Bluefish AI logoBluefish AI logo
Full-time|Remote|London, Remote in the UK

About the Role Join Bluefish AI as a Senior Full-Stack Engineer, where you'll play a pivotal role in merging product innovation, infrastructure, and AI-enhanced development. In this position, you'll design and construct scalable web applications, contributing to the technical backbone of our cutting-edge AI marketing platform. Your collaboration with AI engineers, product managers, and designers will ensure that we deliver features that are not only technically robust but also meet our customers' needs. We seek an individual with a strong product-oriented mindset who is genuinely invested in user outcomes beyond mere implementation. As a key team player, you will foster a culture of accountability, uphold high engineering standards, and drive continuous improvement. This includes mentoring fellow engineers, engaging in thoughtful design discussions, and helping the team maintain speed without sacrificing quality. This opportunity allows you to take ownership of critical systems, influence the technical roadmap, and contribute to the evolution of AI-powered marketing technology. This position is associated with our London office, but we offer remote working options for candidates within the UK.

Mar 17, 2026
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Tipalti logoTipalti logo
Full-time|On-site|London, England, United Kingdom

Overview Join Tipalti, a dynamic fintech company located in the heart of London, dedicated to automating financial workflows for small and medium-sized businesses. Our engineering culture is robust, collaborative, and focused on making a tangible impact for our clients. As a Senior Full-Stack Engineer, you will merge hands-on engineering skills with a product-oriented mindset. You will define requirements, engage in technical discussions, and influence user experiences while managing the entire software development lifecycle. Responsibilities Develop robust, efficient, and well-tested code across the technology stack. Create new features and enhancements that align with product priorities. Participate in design and architecture discussions, shaping the technical direction. Review code with team members, ensuring clean code practices and quality standards are met. Collaborate closely with Product Managers to clarify requirements and propose solutions. Proactively identify questions, edge cases, and assist in refining specifications. Provide technical insights into prioritization and product decisions. Communicate effectively with designers, engineers, and stakeholders. Share knowledge and mentor colleagues as needed. Engage with external partners and vendors for integration work when necessary. Requirements Experience building across the full stack and a keen interest in learning new technologies. A passion for writing clean, maintainable, secure, and well-tested code. Strong collaboration skills and a preference for team environments. A curiosity about customer needs and the ability to translate them into technical solutions. A commitment to continuous learning and knowledge sharing within the team. Preferred Tech Skills Proficiency in JavaScript / TypeScript, Node.js, and React (or similar frameworks). Experience with REST APIs or microservices architecture. Familiarity with MongoDB. Knowledge of cloud services, particularly AWS. Why Join Tipalti? An open, inclusive, and supportive engineering culture.‍ Opportunities to build products utilized by some of the world’s fastest-growing companies. Equity options in a late-stage scale-up.

Mar 18, 2026
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Veeva Systems Inc. logoVeeva Systems Inc. logo
Full-time|Remote|United Kingdom - London

Veeva Systems stands at the forefront of the life sciences industry as a pioneering cloud-based organization. Our mission is clear: to empower life sciences companies to expedite the delivery of therapies to patients. Recognized as one of the fastest-growing SaaS companies, we achieved over $2 billion in revenue last year, with immense potential for further growth.At Veeva, our core values drive us: Do the Right Thing, Customer Success, Employee Success, and Speed. We are more than just a public company; we made history in 2021 by becoming a public benefit corporation, legally committed to balancing the interests of our customers, employees, society, and investors.As a Work Anywhere organization, we promote flexibility, allowing you to work remotely or in the office to thrive in the environment that suits you best.Join us in transforming the life sciences landscape and making a meaningful impact on our customers, employees, and communities.The RoleAs a Senior Full Stack Engineer at Veeva Link, you will contribute to creating the intelligence layer for life sciences. We focus on developing connected data applications that not only accelerate drug development but also enhance patient outcomes. Our belief is that merging high-quality data with cutting-edge software yields exceptional value.We prioritize execution, valuing speed, accuracy, and quality in our daily endeavors. Our engineering methodology emphasizes clear product definitions that lead to thoughtful technical designs, utilizing a modern tech stack to create reliable applications that deliver outstanding user experiences.Our work is centered around two key domains:Data-Driven InsightsWe craft sophisticated applications that analyze and comprehend global scientific and medical expertise, yielding impactful insights and AI-driven intelligence. Our engineers tackle complex challenges in data modeling, entity resolution, and advanced machine learning.Intelligent Business WorkflowsOur focus is on designing intelligent business workflows that significantly improve operational efficiency across the life sciences sector.

Sep 22, 2023
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Abound logoAbound logo
Full-time|On-site|London

About the Role Abound is hiring a Senior Full Stack Engineer in London. This position focuses on building and improving web applications, working across both front-end and back-end systems. The team values practical solutions and a collaborative approach. What You Will Do Design and implement scalable web applications Work with cross-functional teams to deliver new features Contribute to both front-end and back-end development Help create a strong user experience through thoughtful engineering What We’re Looking For Solid experience with both front-end and back-end technologies Comfort working closely with colleagues from different disciplines Ability to deliver reliable, maintainable code

Apr 14, 2026
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Humaans logoHumaans logo
Full-time|On-site|London

About UsAt Humaans, we are revolutionizing workplace infrastructure with our cutting-edge software tailored for rapidly scaling, global companies. What began as a record-keeping system has transformed into a comprehensive platform that empowers organizations to manage their workforce more intelligently. Our AI-driven tool, Athena, enables seamless orchestration across HR, IT, Finance, and Operations, allowing teams to act swiftly and confidently as they navigate their growth.We collaborate with dynamic teams across Europe and the US, including innovative AI companies like Lovable and Poolside, as well as established firms such as Quantexa and LinkedIn. Our clients seek more than just software; they look for the ability to scale efficiently and effectively amidst increasing complexity.Having secured $20 million in venture funding from renowned leaders and investment firms, we are poised for significant growth. If you are driven by ambition and eager to tackle challenging problems within a fast-paced environment, this is the opportunity for you.Our Technology StackWe leverage a robust tech stack that includes TypeScript, JavaScript, React, Node.js, PostgreSQL, and Redis. Our development process is streamlined with GitHub for version control and continuous integration, deploying on Kubernetes via Google Cloud Platform. We maintain a public REST API and utilize a real-time WebSocket API for our browser client. Our commitment to detail ensures high-quality user-facing features, while our focused approach enables rapid progress.Your Day-to-Day ResponsibilitiesContribute to product development from concept to launch.Develop end-to-end features, troubleshoot issues, enhance infrastructure, and provide customer support.Utilize backend TypeScript with Node.js, PostgreSQL, Redis, and Kubernetes.Implement frontend features using TypeScript and React.Help expand our third-party integration marketplace.Participate in technical architecture discussions.Assist sales and marketing teams as needed.

Feb 2, 2023
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Spotify Technology S.A. logoSpotify Technology S.A. logo
Full-time|On-site|London

Join our innovative team at Spotify for Authors (SFA), the premier platform revolutionizing the audiobook industry. As a Senior Full Stack Engineer, you will play a pivotal role in developing a robust web application that empowers publishers, authors, and narrators with essential tools for catalog management, performance tracking, and content distribution on Spotify. We are on an exciting journey to scale our user base to 100,000, utilizing a cutting-edge React/TypeScript frontend and Java backend services, complemented by data pipelines that enhance our audiobook ecosystem. At SFA, we are directly contributing to Spotify's key initiatives: improving audiobook accessibility, advancing content creation tools, and refining discovery mechanisms. Our philosophy embraces collaboration, where contributions know no boundaries, quality is a shared goal, and we leverage the latest technologies, including AI, to minimize manual tasks and amplify creative expression.

Apr 10, 2026
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Ki Insurance logo
Full-time|On-site|London, England, United Kingdom

Hello! Who are we?At Ki Insurance, our innovations are making headlines globally. From insuring space shuttles and world tours to safeguarding wind farms and even footballers’ legs, we cover it all.Our mission? To disrupt and revolutionize a market that has existed for 335 years. In collaboration with Google and UCL, we have developed a cutting-edge platform that utilizes algorithms, machine learning, and large language models to provide insurance brokers with quotes in mere seconds instead of days.As the largest global algorithmic insurance carrier and the fastest-growing syndicate in the Lloyd's of London market, we proudly achieved $100 million in profit within three years.Our diverse teams collaborate in an agile, cross-functional environment, striving to create the ultimate customer experience. With big ambitions ahead, we need brilliant minds to help us challenge the status quo and reach new heights.What’s your role?As a Staff Full-Stack Engineer on our Engineering team, you'll provide technical leadership for delivery squads and the broader engineering organization. Together with our engineering leadership, you will uphold engineering excellence and maintain high-quality standards through a culture of continuous improvement. You'll be hands-on, delivering impactful software directly and leading initiatives independently.Your responsibilities will include:Creating robust and scalable software for critical web-based applications.Developing engaging, efficient, and reusable web and mobile sites that enhance our applications.Designing, building, testing, documenting, and maintaining APIs and integrations.Implementing quality control measures through automated testing, pairing, and code reviews.Collaborating with the Product team to translate end-user requirements into effective technical solutions.Documenting technical designs and analyses.Evaluating current system architecture to identify areas for growth and improvement.Building mock-ups or prototypes to explore and troubleshoot new initiatives.Working closely with Product teams and UX designers to ensure top-notch user experiences.Exploring new ideas and emerging technologies to develop prototypes rapidly.Fostering a culture of continuous improvement throughout the team.

Dec 8, 2025

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