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Top Full Stack Developer Jobs in London

Junior
Artificial Intelligence • HR Tech • Productivity • Software
As the first engineering hire, you will architect AI-native systems to automate wealth management and build financial simulators, working closely with the CTO.
Top Skills: AIBank-Grade EncryptionData PipelinesFinancial SimulationLlmsSoc 2 Compliance
17 Days AgoSaved
Hybrid
London, UK
Mid level
Mid level
Artificial Intelligence • HR Tech • Productivity • Software
As a Full Stack Engineer, you will develop and maintain the Liquid Brain software stack, focusing on software-hardware integration and collaboration with scientists to deliver scalable product features and APIs.
Top Skills: DjangoNext.JsPostgresPythonReact
Junior
Artificial Intelligence • HR Tech • Productivity • Software
Join a fast-growing startup as a Full Stack Engineer to build AI agents for automating AML operations, owning significant product areas and working directly with founders.
Top Skills: AWSNode.jsTypescript
Mid level
Artificial Intelligence • HR Tech • Productivity • Software
As the first technical hire, you'll build end-to-end product features, integrate AI models, and enhance application performance.
Top Skills: Next.JsPostgresPythonReactTypescript
Senior level
Artificial Intelligence • HR Tech • Productivity • Software
Join a seed-stage startup to develop user interfaces for AI agents, focusing on React applications and collaborating with the founding team.
Top Skills: PythonReactTailwindTypescript
8 Days AgoSaved
Remote
London, UK
Mid level
Mid level
Blockchain • Fintech • Payments • Cryptocurrency • Web3
As a Fullstack Engineer at MoonPay, you will architect and develop monetization products, collaborate across teams, maintain the codebase, and deploy high-quality applications on cloud services. You will also work on algorithmic pricing features and ensure effective experimentation methods are in place.
Top Skills: Argo CdDatadogGenai ToolsGitGitGoogle Cloud PlatformLaunch DarklyNode.jsReactReact NativeRedisTypescript
22 Days AgoSaved
Hybrid
London, UK
Senior level
Senior level
Fintech • Mobile • Payments • Software • Financial Services
The role involves contributing to the Dynamic Flow UI framework, supporting product teams in feature implementation, and enhancing developer tooling and experiences.
Top Skills: JavaKotlinReactSpring FrameworkTypescript
Reposted 17 Days AgoSaved
Hybrid
London, UK
Senior level
Senior level
Fitness
Lead architecture and technical strategy across mobile and backend systems, drive end-to-end feature delivery, mentor engineers, improve CI/CD and developer productivity, own releases, and collaborate with Product and Design to scale a high-performing engineering organization.
Top Skills: Api GatewayApollo ClientApp Store ConnectAppsyncAWSCdkCloudFormationDynamoDBEventbridgeFastlaneGithub ActionsGraphQLIntercomJavaScriptLambdaMaestroMixpanelNode.jsPlay StorePythonReact NativeRevenuecatS3SagemakerSentryServerlessSnowflakeSnsSqsSwiftuiTerraformTypescript
Reposted 17 Days AgoSaved
Hybrid
London, UK
Mid level
Mid level
Fintech • Software • Financial Services
Build end-to-end features across frontend and backend, design scalable secure services, write automated tests, debug to production, translate customer requirements, and collaborate across cross-functional teams.
Top Skills: AWSFigmaGoKubernetesMicroservicesNoSQLPythonReactRest ApisSQLTypescript
18 Days AgoSaved
Easy Apply
In-Office
London, UK
Easy Apply
Mid level
Mid level
Other
The Full Stack Engineer will design, develop, and deliver AI-enabled applications, ensuring strong stakeholder engagement and adherence to SDLC practices while applying UX/CX principles.
Top Skills: HTMLJavaScriptAzurePythonReact
Reposted 18 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Mobile • Software
Lead the design and development of full-stack solutions, mentor engineers, and ensure high-quality, scalable applications across frontend and backend platforms.
Top Skills: ApigeeAWSAzureDockerKotlinKubernetesNext.JsReactTypescript
Reposted 19 Days AgoSaved
Hybrid
London, UK
Senior level
Senior level
Fintech • Payments • Financial Services
Build and ship end-to-end web features: frontend and backend development, deployment, security and data-protection in a regulated environment. Drive architecture, observability, and code quality. Mentor junior engineers, handle production incidents, automate internal processes, and represent engineering in cross-functional planning to translate business goals into technical plans.
Top Skills: ExpressJavaScriptNext.JsNode.jsPostgresReactTypescript
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Reposted 19 Days AgoSaved
Hybrid
London, UK
Expert/Leader
Expert/Leader
Fintech • Payments • Financial Services
Lead full-stack development across product and technical architecture, build performant web interfaces, ensure security and data protection, own delivery milestones, mentor engineers, and represent engineering in cross-functional strategy.
Top Skills: ExpressJavaScriptNextjsNode.jsPostgresReactSwiftTypescript
Reposted 19 Days AgoSaved
In-Office or Remote
London, UK
Mid level
Mid level
Artificial Intelligence • Real Estate • Software
As a Full-Stack Engineer, you will design and build scalable web applications and APIs, integrate external partners, and automate operations for The Flex platform.
Top Skills: AWSFastapiNode.jsPythonReact
Reposted 11 Days AgoSaved
London, UK
Mid level
Mid level
Artificial Intelligence • Information Technology • Software • Cybersecurity
The role involves engineering, testing, and the development of advanced frontend components for an AI-driven cybersecurity product, integrating AI features and ensuring best practices are followed.
Top Skills: Ai/Ml FrameworksCSSHaystackHTMLJavaScriptLangchainLlamaindexPythonReact
Reposted 11 Days AgoSaved
London, UK
Senior level
Senior level
Artificial Intelligence • Information Technology • Software • Cybersecurity
The Fullstack Engineer will focus on product software engineering, agents framework engineering, and R&D in AI and cybersecurity. Responsibilities include hands-on engineering, testing, and integrating AI Agents into existing systems.
Top Skills: Generative AiHaystackLangchainLlamaindexPythonRag
Reposted 11 Days AgoSaved
London, UK
Senior level
Senior level
Artificial Intelligence • Information Technology • Software • Cybersecurity
The Fullstack Engineer will focus on DevOps, designing infrastructure and deployment pipelines, and collaborating on AI Agent features and cybersecurity solutions.
Top Skills: Ci/CdContainerizationGenerative AiHaystackLangchainLlamaindexOrchestrationPython
Reposted 22 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Cloud • Digital Media • Information Technology • Software
The Full Stack Developer will design and build cloud-native applications on AWS, working with both Python and modern front-end technologies like React and TypeScript. The role involves collaborating in Agile environments and ensuring high-quality deliverables through CI/CD practices.
Top Skills: AWSCi/CdDynamoDBLambdaPythonReactSqsTypescript
Reposted 22 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Fintech • Payments • Financial Services
Design and build complex web applications and scalable APIs across front-end and back-end. Implement UIs with modern frameworks, develop microservices, manage SQL/NoSQL databases, deploy containerized cloud solutions, and maintain automated testing and CI/CD pipelines while collaborating with clients and teams.
Top Skills: AngularAutomated TestingAzureC#Ci/CdDockerGCPGoJavaKubernetesMongoDBMySQLNextNode.jsPostgresPythonReactVue
An Hour AgoSaved
In-Office
London, UK
Senior level
Senior level
Artificial Intelligence • Software
The Fullstack Growth Engineer will build user engagement and monetization systems, focusing on growth, ecosystem features, and collaboration across functions to enhance user success and revenue generation.
Top Skills: AWSCloudflareGCPGithub ActionsGoGrafanaOtelReactRustTerraform
Reposted 13 Days AgoSaved
Remote
London, UK
Senior level
Senior level
Artificial Intelligence • Security • Cybersecurity
As a Full Stack Engineer, you will own the complete stack from UI to API, ensuring high-quality feature development and exceptional user experiences at a fast-paced startup.
Top Skills: FastapiPostgresPythonReactTailwindcssTypescript
23 Days AgoSaved
In-Office
London, UK
Junior
Junior
Fintech • Software • Consulting • Financial Services
As a Full Stack Software Engineer, you'll develop and scale the QLC Portal, optimizing performance, maintaining code quality, and collaborating with stakeholders.
Top Skills: EjsExpress.JsJavaScriptNext.JsNode.jsPostgresPrisma OrmReactSupabaseTailwind CssTypescript
Reposted 24 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Information Technology • Real Estate • Software
As a Full-Stack Engineer, you will enhance the consumer portal experience by developing a high-performance website using various technologies, focusing on React and TypeScript while collaborating across teams.
Top Skills: AWSGitGitlabGoGraphQLNext.JsNode.jsNxPythonReactReact NativeTypescriptVercel
YesterdaySaved
Hybrid
London, UK
Senior level
Senior level
Music
The Senior Fullstack Engineer will build scalable fullstack solutions for internationalization, collaborating with design and product teams to enhance global user experiences.
Top Skills: Backend TechnologiesDistributed SystemsFullstack SolutionsModern Frontend FrameworksScalable Web Applications
YesterdaySaved
In-Office
London, UK
Mid level
Mid level
eCommerce • Fitness • Retail
As a Full Stack Software Engineer, you will develop features for the Mirror App, Mobile Apps, and web applications, collaborating with product, QA, and customer support teams, while contributing to a revolutionary fitness technology.
Top Skills: AIApi GatewayAWSCloudFormationDynamoDBFlutterJIRALambdaS3
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