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Top Backend Developer Jobs in London

Reposted 5 Days Ago
Hybrid
London, UK
Mid level
Mid level
Cloud • Fintech • Information Technology • Machine Learning • Software • App development • Generative AI
As a Back-End Software Engineer, you'll design and develop cloud-based applications, drive innovation, and mentor engineers, ensuring high standards of software quality.
Top Skills: Apache HadoopApache SolrAWSAzureC#ElasticsearchGCPHiveJavaKafkaNoSQLPythonRabbitMQSparkSQLYarnZookeeper
Reposted 3 Days Ago
Hybrid
London, UK
Senior level
Senior level
Enterprise Web • Marketing Tech • Software
As a Senior Backend Engineer at Contentful, you will work within a cross-functional team to solve complex engineering problems, enhance APIs, and collaborate on content modeling. You will have opportunities to mentor others while using modern technologies like AWS and Docker to deliver impactful digital experiences.
Junior
Fintech • Mobile • Payments • Software • Financial Services
You will contribute to the development of scalable systems and improve financial crime controls focusing on customer onboarding. Responsibilities include building KYC processes and enhancing user experience within regional frameworks.
Top Skills: JavaKotlinMicroservicesSpring BootSQL
Reposted 17 Hours Ago
Hybrid
London, UK
Expert/Leader
Expert/Leader
Digital Media • eCommerce • Gaming • Mobile • News + Entertainment
In this role, you'll lead deployments, optimize implementations, and manage integrations for Crunchyroll's Partner Engineering team, enhancing services and partnerships. You will collaborate closely with various teams to improve operations, develop prototypes, and take initiatives from conception to deployment.
2 Days Ago
Hybrid
London, UK
Senior level
Senior level
Enterprise Web • Marketing Tech • Software
As a Senior Software Engineer at Contentful, you will work on a Content Platform team, solving complex engineering problems and enhancing REST and GraphQL API experiences. You will collaborate with cross-functional teams to build innovative solutions that connect and reuse content, leveraging modern services like AWS and Docker, while mentoring less experienced engineers.
Reposted 2 Days Ago
Remote
Hybrid
London, UK
Senior level
Senior level
Information Technology • Productivity • Software • Infrastructure as a Service (IaaS)
The Senior Software Engineer will contribute to developing and maintaining backend applications using Java and Kotlin, work on high-availability systems, support product requirements, and ensure system performance. Responsibilities include designing new applications, improving existing systems, coding, and monitoring system performance, all within an agile environment.
Reposted 3 Days Ago
Hybrid
London, UK
Senior level
Senior level
Fintech • Professional Services • Consulting • Energy • Financial Services • Cybersecurity • Generative AI
As a Senior Backend Engineer at Capco, you will work on transformative projects within the financial services sector, leveraging your expertise in Java and Spring Boot. You will be responsible for delivering cloud-based platforms and applications, employing Agile methodologies while ensuring high standards in software engineering practices. This role requires deep technical knowledge across various technologies, a passion for continuous improvement, and the ability to communicate complex ideas effectively.
Reposted 3 Days Ago
Hybrid
London, UK
Mid level
Mid level
Fintech • Professional Services • Consulting • Energy • Financial Services • Cybersecurity • Generative AI
As a Backend Engineer at Capco, you will work on transformative projects in the financial services sector, utilizing your expertise in Java and related technologies. You will contribute to innovative solutions while engaging with teams focused on continuous improvement, Agile methodologies, and cloud-based deployments.

Featured Jobs

Reposted 3 Days Ago
Hybrid
London, UK
Expert/Leader
Expert/Leader
Productivity • Software
As a Principal Software Engineer, you'll lead the engineering vision and technical direction for monday.com’s Data group, focusing on building and scaling their new Data Platform. You'll provide mentorship to engineering teams and collaborate across departments to influence product strategy and execution.
8 Days Ago
Hybrid
London, UK
Senior level
Senior level
Productivity • Software
Join monday.com as a Senior Backend Software Engineer focusing on scaling and enhancing the company's data platform, mondayDB 3.0. You'll develop new services, ensure integration, and improve resilience and logging practices while collaborating across teams.
6 Days Ago
Hybrid
London, UK
Senior level
Senior level
Productivity • Software
The Engineering Tech Lead - Backend will work on developing a new service to support the scaling needs of monday.com while ensuring seamless integration, resilience, and observability. This role entails technical leadership, collaboration across teams, and a focus on building a high-capacity data platform.
Senior level
HR Tech • Software
As a Staff/Principal Engineer in the Analytics and Insights Team at Personio, you will design and develop scalable analytical products while ensuring data integrity, implementing performance optimizations, and enforcing security measures. Collaboration with cross-functional teams and maintaining documentation are key responsibilities, alongside staying updated on industry trends.
6 Days Ago
Easy Apply
Remote
London, UK
Easy Apply
Senior level
Senior level
Big Data • Fintech • Mobile • Payments • Financial Services
As a Staff Software Engineer in Backend for Consumer Payments at Affirm, you will set technical strategy, collaborate across teams to ensure sustainable product development, own operational processes, and develop talent while maintaining high-quality coding practices. You will be instrumental in building backend systems at scale using payment technologies and lead efforts in system architecture and product features.
Top Skills: AWSKotlinKubernetesMySQLPythonSpark
Reposted 12 Days Ago
Hybrid
London, UK
Senior level
Senior level
Cloud • Fintech • Information Technology • Machine Learning • Software • App development • Generative AI
As a Staff Back-End Software Engineer at BlackLine, you will be responsible for designing, developing, and optimizing cloud-based backend services, mentoring junior engineers, and collaborating with teams to define and implement features. You will leverage cutting-edge technologies to drive innovation and enhance product delivery, ensuring high standards of quality and performance.
14 Hours Ago
Easy Apply
Remote
London, UK
Easy Apply
Senior level
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Conversational AI
As a Senior Backend Engineer at Smartcat, you will design and implement scalable backend services and APIs, collaborate with cross-functional teams for seamless integration, optimize application performance, and engage in code reviews and knowledge sharing.
Top Skills: .Net Core (C#)Amazon AwsElasticsearchElk (Efk)GrafanaKafkaMongoDBPostgresPrometheusPython
15 Days Ago
Hybrid
London, UK
Mid level
Mid level
Enterprise Web • Marketing Tech • Software
As a Backend Engineer at Contentful, you'll join a team focused on driving innovations in content management by developing APIs that facilitate connections and content delivery. You'll work with technologies like Node.js, TypeScript, SQL/NoSQL databases, and cloud services to enhance the platform's capabilities for a growing customer base.
Reposted 3 Days Ago
Easy Apply
Remote
London, UK
Easy Apply
Senior level
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Conversational AI
As a Senior Backend Engineer at Smartcat, you will design and implement scalable backend services and APIs, optimize application performance, collaborate with teams, troubleshoot production issues, and participate in code reviews.
Mid level
Financial Services
As a Lead Software Engineer at JPMorgan Chase, you will develop customer-centric fintech products, focusing on scalable, secure, and reliable software solutions. You will collaborate within agile teams, employing domain modeling and maintaining system performance, while also fostering a culture of sharing knowledge and adapting to change.
Mid level
Financial Services
As a Software Engineer III, you'll work collaboratively to develop customer-centric solutions using Java and Kotlin. Your responsibilities include structuring software for maintainability, ensuring security, optimizing data management, and maintaining system reliability. You'll also focus on leveraging the right technologies for problem-solving and contributing to a cloud-native multi-cloud environment.
Reposted 3 Days Ago
Hybrid
London, UK
Senior level
Senior level
Enterprise Web • Marketing Tech • Software
As a Senior Fullstack Engineer at Contentful, you will lead the design and development of scalable solutions, focusing on customer outcomes and driving innovation in digital content experiences. Your role involves collaborating with teams, solving complex problems, and integrating AI technologies while maintaining a strong ownership mentality throughout the product lifecycle.
Top Skills: AWSAzureDockerGCPJestKubernetesNode.jsPlaywrightReactTypescript
Reposted 17 Days Ago
Hybrid
London, UK
Mid level
Mid level
Productivity • Software
As an Engineering Manager at monday.com, you will lead the development of infrastructure features and manage a talented team of developers. Responsibilities include overseeing new feature development, collaborating with UI/UX design, and driving technical architecture and strategy to support scaling operations. You'll work in a fast-paced environment focused on product quality and user impact.
12 Days Ago
Remote
London, UK
Senior level
Senior level
Artificial Intelligence • Enterprise Web • Software
As a Senior Software Engineer, you'll build scalable distributed systems, enhance querying capabilities, and lead technical solutions while mentoring teammates and driving engineering excellence.
10 Hours Ago
London, UK
Senior level
Senior level
Legal Tech
The Senior Software Engineer, Backend will develop production-ready APIs and services for AI functionalities, improve system reliability and monitoring, and scale AI systems for legal use cases, collaborating with AI engineers and product teams.
Top Skills: AWSBigQueryDbtGithub ActionsGCPMongoDBNext.JsPostgresPrismaPythonReactRedisTailwindTerraformTrpcTypescript
Reposted 2 Days Ago
Hybrid
London, UK
Mid level
Mid level
Music
The role involves working across the full stack with a focus on backend development to enhance developer experience. Responsibilities include designing and maintaining tools, evaluating new technologies, and collaborating with other teams to improve productivity.
Senior level
Cloud • Computer Vision • Information Technology • Sales • Security • Cybersecurity
The Sr. Software Engineer will build and evolve cloud-based systems for real-time detection against targeted attacks, focusing on performance, scalability, and quality. Responsibilities include collaborative system design, code review, solving technical challenges in Go and Python, and mentoring team members.
Top Skills: AWSAzureCassandraElastic SearchGoKafkaKubernetesPythonRedis
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