Top Software Engineer Jobs in London

6 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Information Technology
Design, build, and operate cloud-native backend services in Go for Neo4j Aura IAM. Develop custom Kubernetes operators/controllers, drive platform architecture, and implement secure service-to-service authentication (JWT, mTLS, SPIFFE/SPIRE). Collaborate with product, infrastructure, and security teams and produce clear technical documentation.
Top Skills: AWSAzureGCPGoJwtKubernetesKubernetes OperatorsMtlsSpiffeSpire
6 Days AgoSaved
In-Office
London, UK
Expert/Leader
Expert/Leader
Artificial Intelligence • Natural Language Processing • Generative AI
Lead technical strategy and roadmap for developer productivity infrastructure. Design and build scalable, reliable distributed systems, build environments, package/dependency management, CI/CD and developer tooling to enable fast, reproducible builds and improve engineering workflows across a large monorepo.
Top Skills: Bazel Remote Execution ApiBuildbarnBuildbuddyBuildkiteDockerGithub ActionsGithub ApiGoJenkinsNixNixosPythonRust
Reposted 6 Days AgoSaved
In-Office or Remote
London, UK
Senior level
Senior level
Software
The Software Engineer will manage data collection for model training, operate cloud infrastructure, and collaborate on data management strategy to enhance Speechify's AI capabilities.
Top Skills: BashDockerGCPPythonTerraform
Reposted 6 Days AgoSaved
In-Office or Remote
London, UK
Mid level
Mid level
Software
The Software Engineer will design and maintain backend APIs, enhance performance, collaborate on B2B solutions, and align architecture with product strategy.
Top Skills: AWSAzureDockerGCPKubernetesNode.jsTs
Reposted 6 Days AgoSaved
In-Office or Remote
London, UK
Senior level
Senior level
Software
The Senior iOS Engineer will lead product decisions, enhance the iOS app, maintain app architecture, and ensure excellent user experiences.
Top Skills: Ci/CdFastlaneGitMultithreadingSwiftSwiftui
6 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Marketing Tech • Software
Build and operate production-grade AI tools, agents, and workflows to accelerate product development. Partner with teams to embed agentic workflows, define guardrails and governance, measure adoption and model performance, and deliver scalable, observable, and secure AI-native capabilities.
Top Skills: Agent OrchestrationAgentic PlatformsCost ControlsData PrivacyEvalsLlm ApisMcp IntegrationsObservabilityPromptingRag (Retrieval-Augmented Generation)SecurityTelemetryTool-Calling/Functions
Reposted 11 Days AgoSaved
Easy Apply
Hybrid
London, UK
Easy Apply
Senior level
Senior level
AdTech • Artificial Intelligence • Marketing Tech • Software • Analytics
The Senior Software Engineer will lead the architecture and development of the Zeta Marketing Platform's Addressability part, focusing on real-time data processing, mentoring developers, and collaborating across teams to build scalable solutions.
Top Skills: AkkaAWSCloud ArchitectureDistributed SystemsJavaNosql DatabasesPlay FrameworkRelational DatabasesScalaTerraformZio
12 Days AgoSaved
Hybrid
London, UK
Senior level
Senior level
eCommerce • Information Technology • Marketing Tech • Software
Design and build scalable serverless solutions on GCP using Node.js, React and Next.js. Map large PIM datasets to retailer formats, own microservices and deployments, champion TDD and observability, mentor engineers, and collaborate cross-functionally to deliver customer-focused sales enablement tools.
Top Skills: Google Cloud Platform (Gcp)JavaScriptMicroservicesNext.JsNode.jsProduct Information Management (Pim)ReactServerless
Reposted 6 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Artificial Intelligence • Machine Learning • Generative AI
The role involves building infrastructure for AI agent execution environments, ensuring system reliability and optimizing performance at scale.
Top Skills: AIAPIsCi/Cd SystemsContainersDistributed SystemsSandboxingVirtualization
Reposted 6 Days AgoSaved
Remote or Hybrid
London, UK
Entry level
Entry level
Fintech • Software • Financial Services • Cryptocurrency
Dragonfly is seeking Software Engineers for various portfolio companies, focusing on crypto technologies. Engineers of all experience levels are needed across multiple stacks.
Top Skills: BlockchainDataDevOpsMachine LearningProtocolSecuritySmart Contracts
Reposted 6 Days AgoSaved
Remote or Hybrid
London, UK
Junior
Junior
Fintech • Software • Financial Services • Cryptocurrency
Seeking software engineers with at least 2 years of production backend experience, interested in crypto and blockchain technologies, for roles with portfolio companies.
Top Skills: BlockchainOpen-Source TechnologiesSoftware Engineering
Reposted 6 Days AgoSaved
Remote or Hybrid
London, UK
Senior level
Senior level
Pet
The Software Engineer role involves developing high-quality web and mobile applications, collaborating with cross-functional teams, and ensuring core engineering practices while maintaining a strong user focus.
Top Skills: DjangoPythonReactReact Native
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Reposted 6 Days AgoSaved
Hybrid
London, UK
Mid level
Mid level
Artificial Intelligence • Machine Learning • Big Data Analytics
The Software Engineer will develop AI solutions for defense, implement engineering patterns, collaborate with teams, and ensure high-quality code and deployments.
Top Skills: C#C++DockerGitlabGoJavaKubernetesPythonRust
Reposted 6 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Artificial Intelligence • Information Technology • Security • Consulting • Cybersecurity
As a Software Engineer Consultant, you will design, develop, and maintain secure software systems for public safety, working closely with clients and multidisciplinary teams.
Top Skills: AWSAzureC++DockerGitlab CiGoJavaJenkinsKubernetesNoSQLOpenapiPytestPythonRustSQL
12 Days AgoSaved
Hybrid
London, UK
Senior level
Senior level
Digital Media • Gaming • Information Technology • Software • Sports • Esports • Big Data Analytics
Build scalable, data-driven internal tools and services in Python to measure AI impact. Lead technical strategy, own end-to-end features from requirements through deployment and observability, partner with engineering and data teams, set squad-level technical direction, and mentor junior engineers.
Top Skills: APIsDashboarding/VisualizationData PipelinesData StoresObservabilityPython
7 Days AgoSaved
Hybrid
London, UK
Mid level
Mid level
Greentech • Energy • Renewable Energy
Build and operate production data pipelines and streaming integrations ingesting market data and asset telemetry. Partner with trading and data science teams to deliver data for forecasting models. Work with stakeholders to build integrations and analytical views and improve the data platform powering GAIA across the business.
Top Skills: CloudInfrastructure As CodeLlmsPythonSQL
7 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Healthtech • Biotech • Pharmaceutical
Design and build scalable scientific software, data pipelines and APIs to support research biology and drug discovery. Collaborate with scientists, data engineers and ML/ops to enable AI/ML, search and visualization while ensuring performance, reliability and security.
Top Skills: Ai/Ml IntegrationAPIsBack-End DevelopmentCloud-Native ArchitecturesData PipelinesDatabasesEvent-Driven ArchitectureFront-End DevelopmentMicroservicesModel Deployment
7 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Fintech • Software • Financial Services
Design, build and maintain Python-based systems and integrations for Risk, Finance & Compliance. Own end-to-end delivery: requirements, solution design, production deployment and support. Implement APIs, data pipelines, visualisations, data cleansing/enrichment, and platform improvements while collaborating with stakeholders and a small technical team.
Top Skills: Ai ToolsAws CdkAws CognitoAws Ecs/FargateAws LambdaAws Step FunctionsCloudwatchDockerDynamoDBFastapiKubernetesLarge Language ModelsModel Context ProtocolNumpyPandasPlotlyPython
7 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Artificial Intelligence • Cloud • Database • Infrastructure as a Service (IaaS)
Build and optimize low-level, high-performance software and cloud-scale storage systems for ML-focused data infrastructure. Design data layouts, compression strategies, and orchestration layers; drive performance engineering and systems-level improvements. Collaborate with a small team in New York or London, leveraging open-source tools and cloud warehouse architectures.
Top Skills: Apache ArrowClickhouseCloud Data WarehouseCudaDatafusionDuckdbParquetPyTorchRustVortex
Reposted 7 Days AgoSaved
In-Office
London, UK
Entry level
Entry level
Fintech • Payments • Software
As a Graduate Software Engineer at Ebury, you will design, develop, test, and deploy software solutions, collaborating with cross-functional teams and participating in the full software development lifecycle.
Top Skills: AWSAzureDockerGCPGoJavaKubernetesPython
Reposted 7 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Fintech • Payments • Financial Services
Build and maintain low-latency, high-throughput backend trading systems in Java. Develop order booking, execution, real-time risk and valuation features, optimize distributed systems for performance, and apply TDD/BDD, CI/CD and DevOps practices to deliver resilient 24/7 trading functionality.
Top Skills: AmqAsynchronous Event-Driven ArchitectureBddCi/CdDevOpsDistributed SystemsJavaKafkaPerformance TestingTdd
Reposted 7 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Big Data • Information Technology • Software • Analytics
The Software Engineer will develop betting solutions, create mathematical models, automate operations, and collaborate closely with data scientists.
Top Skills: Node.jsPythonSQLTypescript
Reposted 7 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Big Data • Information Technology • Software • Analytics
Develop advanced automation and visual data processing workflows using AI tools, focusing on computer vision and data streaming techniques while ensuring system reliability and scalability.
Top Skills: BeautifulsoupClaude CodeFfmpegNoSQLOpencvPythonPyTorchRtspScrapySeleniumSQLTensorFlowWebrtc
Reposted 7 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Fintech • Financial Services
The Senior Java Software Engineer will build and maintain payment integration systems, ensuring stability and accuracy while delivering robust scalable solutions in a fast-paced environment.
Top Skills: AWSGCPGrafanaJavaKubernetesPostgresTeamcityTerraform
Reposted 7 Days AgoSaved
Hybrid
London, UK
Mid level
Mid level
Fintech • Payments • Financial Services
Software Engineers at Zopa focus on building scalable microservices and solving financial problems, working collaboratively with various teams.
Top Skills: Aws Aurora PostgresDockerKafkaKotlinKubernetes
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