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Top Backend Developer Jobs in London

Reposted 10 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Fintech • Payments • Financial Services
As a Senior Product Engineer (Backend), you'll design and develop APIs and SDKs for embedded insurance and retirement benefits, focusing on system architecture, incident response, and enhancing developer experiences.
Top Skills: .NetAWSAzureOrmSQL
Reposted 10 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Fintech • Payments • Financial Services
As a Backend Product Engineer, you'll design APIs and SDKs for embedded insurance, enhance developer experience, and collaborate with cross-functional teams while growing into a senior role.
Top Skills: .NetAWSAzureSQL
Reposted 10 Days AgoSaved
Remote
London, UK
Mid level
Mid level
Pet • Travel
The Senior Backend Engineer will enhance platform capabilities using Python/Django, improving architecture, mentoring, and collaborating on features that drive member value.
Top Skills: Python,Django,Sql,Github Actions,Sentry,Datadog
Reposted 10 Days AgoSaved
In-Office or Remote
London, UK
Senior level
Senior level
Blockchain • Consulting
Lead the design, development, and maintenance of backend systems and APIs, ensuring scalability and security. Collaborate with cross-functional teams, maintain coding standards, and optimize performance while mentoring junior developers.
Top Skills: AWSCloudflareDockerEthers.JsGitKubernetesMongoDBNode.jsRedisTypescript
11 Days AgoSaved
In-Office or Remote
London, UK
Senior level
Senior level
Artificial Intelligence • Machine Learning • Social Media • Software • App development
The Senior Back End Developer participates in architecture design, develops application functionality, implements services, and ensures quality in a high-load environment.
Top Skills: .Net CoreC#DockerElkGrafanaKubernetesMicrosoft Sql ServerNoSQLPrometheusRabbitMQ
Reposted 20 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Gaming • Software • Metaverse
The role involves providing backend technical support for gaming projects, developing online services, and collaborating with global game studios to optimize backend performance and stability.
Top Skills: AnsibleAWSAzureC++EtcdGCPGoJenkinsKafkaKubernetesMicroservicesMongoDBMySQLPostgresRabbitMQRedisZookeeper
21 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Artificial Intelligence • Information Technology • Machine Learning • Consulting • Automation
The role involves developing and maintaining back-end systems for e-commerce platforms using .Net technologies, ensuring data delivery and optimizing application logic. Responsible for integrating API services and enhancing application performance.
Top Skills: .NetAjaxAngular.JsAsp.NetAws CloudAzureC#CSS3HTML5JasmineJavaScriptJqueryKnockout.JsNode.jsRestSql Server 2012Wcf
11 Days AgoSaved
Remote
London, UK
Senior level
Senior level
Gaming • Software • Automation
As a Lead Backend Engineer, you will enhance platform reliability, manage a small team, and lead architectural decisions to build scalable systems.
Top Skills: AWSDockerFlaskMypyPostgresPytestPythonS3SqsTerraform
Reposted 11 Days AgoSaved
Remote
London, UK
Senior level
Senior level
HR Tech
The Senior Backend Engineer will develop and maintain APIs and tools, collaborate on cross-team projects, and mentor junior engineers. Must be experienced in Elixir and Postgres, and familiar with CI/CD practices.
Top Skills: AWSDockerElixirGitlabKubernetesNext.JsPhoenixPostgresReact
Reposted 11 Days AgoSaved
Easy Apply
Remote
London, UK
Easy Apply
Senior level
Senior level
Information Technology • Security • Cybersecurity
The Senior Software Engineer will develop and maintain backend services, focusing on performance and scalability while collaborating with teams to meet business and security objectives.
Top Skills: AWSAzureDockerGoGoogle Cloud PlatformKotlinKubernetesNeo4JRestful Apis
Reposted 21 Days AgoSaved
In-Office or Remote
London, UK
Senior level
Senior level
Cloud • Software • Analytics
The Senior Back-End Software Engineer will implement features, improve logic, write integrations with APIs, and contribute to design discussions within a startup environment.
Top Skills: AWSDjangoDockerK8SPostgres
22 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Artificial Intelligence • Real Estate • Software
As a Backend Engineer at The Flex, you will design and scale APIs, build automation processes, and integrate various platforms to enhance the guest experience in renting homes.
Top Skills: APIsAws ServerlessDatabasesNode.jsPython/Fastapi
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Reposted 12 Days AgoSaved
Remote
London, UK
Senior level
Senior level
HR Tech
As a Senior Backend Engineer, you will build tools, APIs, and integrations, lead projects, mentor engineers, and improve platform performance within a cross-functional team.
Top Skills: AWSCi/CdDockerElixirGitlabKubernetesNext.JsPhoenixPostgresReact
Reposted 12 Days AgoSaved
Remote
London, UK
Senior level
Senior level
HR Tech
The Senior Backend Engineer will lead major projects, develop APIs, provide product feedback, mentor team members, and contribute to overall platform improvements.
Top Skills: AWSCi/CdDockerElixirGitlabKubernetesNext.JsPhoenixPostgresReact
Reposted 12 Days AgoSaved
Remote
London, UK
Senior level
Senior level
HR Tech
As a Senior Backend Engineer, you'll develop tools, APIs, and integrations using Elixir and Phoenix, while mentoring other engineers and contributing to team projects.
Top Skills: AWSCi/CdDockerElixirGitlabKubernetesNext.JsPhoenixPostgresReact
Reposted 12 Days AgoSaved
Remote
London, UK
Mid level
Mid level
Software • Analytics
The Backend Engineer will develop and manage high-throughput ingestion pipelines, ensuring data integrity and efficiency while working with distributed systems and processing billions of events daily.
Top Skills: Node.Js,Rust,Postgresql,Kafka,Redis
Reposted 12 Days AgoSaved
Remote
London, UK
Mid level
Mid level
Artificial Intelligence • Software • Cybersecurity
The Research Engineer will design and implement scalable distributed backend systems, deploying on AWS, and collaborating with cross-functional teams. Responsibilities include problem ownership and navigating ambiguity in system design and operation.
Top Skills: AWSCdkGoKotlinPostgresTerraformTypescript
Reposted 12 Days AgoSaved
In-Office or Remote
London, UK
Mid level
Mid level
Software
Seeking a Python backend engineer to develop SaaS solutions. Responsibilities include full development lifecycle, discussing issues, and documenting code.
Top Skills: PythonReactTypescript
Reposted 12 Days AgoSaved
In-Office or Remote
London, UK
Mid level
Mid level
Blockchain • Software • Web3
As a Backend Engineer, you will develop APIs for MetaMask, requiring strong skills in Node.js, Typescript, and distributed systems, while collaborating in an agile team.
Top Skills: AWSAzureCi/CdDockerEthers.JsGrafanaKubernetesNode.jsPostgresPrometheusSolidityTypescriptWeb3.Js
Reposted 22 Days AgoSaved
Easy Apply
In-Office
London, UK
Easy Apply
Mid level
Mid level
Healthtech
As a Backend Engineer, you will design and implement APIs, maintain AWS infrastructure, manage databases, and work with cross-functional teams to enhance Pelago’s core services.
Top Skills: AWSMySQLNode.jsTypescript
Reposted 22 Days AgoSaved
In-Office or Remote
London, UK
Mid level
Mid level
Fintech • Software • Financial Services
As a Backend Engineer at Pennylane, you will develop financial software, participate in project design and implementation, and support customers in a collaborative team environment.
Top Skills: AWSReactRubyRuby On RailsTypescript
23 Days AgoSaved
Hybrid
London, UK
Mid level
Mid level
Music
The Backend Engineer will build scalable backend solutions, lead projects, improve system architecture, and enhance engineering practices while collaborating with product managers and stakeholders.
Top Skills: BigQueryGCPJavaKubernetesScio
14 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 23 Days AgoSaved
Hybrid
London, UK
Mid level
Mid level
Software • Design
As a Backend Engineer at Rive, you will build and scale cloud services, develop APIs, maintain web applications, and improve system observability. You'll work collaboratively with customers and ensure code maintainability.
Top Skills: Aurora MysqlAWSAws CodepipelineBashC++CloudwatchDartDockerFlutterGithub ActionsJavaScriptNext.JsNode.jsOpentelemetrySentryTerraformTypescript
14 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Fintech • HR Tech • Payments • Financial Services
Join Deel as a Backend Engineer to develop APIs and fintech capabilities, solve complex payment and compliance challenges, and build on-chain financial infrastructure in a cross-functional team.
Top Skills: EthereumHardhatL1 FrameworksL2 FrameworksNode.jsPostgresSolidityTruffleTypescript
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