Top Backend Developer Jobs in London

Reposted 21 Days AgoSaved
Remote
London, UK
Senior level
Senior level
Machine Learning • Software
As a Senior Fullstack Engineer, you will focus on backend development using Python/Django, and occasionally contribute to the React/Typescript frontend, working on user activation and product improvements.
Top Skills: DjangoPythonReactTypescript
Reposted 21 Days AgoSaved
In-Office or Remote
London, UK
Senior level
Senior level
Artificial Intelligence • Information Technology • Consulting
The Senior Backend Engineer will develop reliable cloud services, engage in teamwork, and address complex challenges primarily using Golang, Java, and Python.
Top Skills: GoJavaKubernetesPython
Reposted 22 Days AgoSaved
Remote
London, UK
Senior level
Senior level
Software
The Staff Backend Engineer will drive technical strategy, oversee critical system architecture, lead large projects, and mentor engineers to enhance telemetry data management at Grafana Labs.
Top Skills: CC++GoGrafanaKafkaKubernetesPrometheusPythonRust
Reposted 22 Days AgoSaved
Remote
London, UK
Senior level
Senior level
Fintech • Mobile • Payments • Software
Design, build, and support features for a monetization platform while ensuring reliability and performance as a senior backend engineer.
Top Skills: PostgresPythonReactSQL
Reposted 23 Days AgoSaved
Remote
London, UK
Expert/Leader
Expert/Leader
Artificial Intelligence • Security • Cybersecurity
The Backend Engineer will develop AI Agents, design scalable systems, integrate ML services, optimize performance, and mentor junior engineers.
Top Skills: AWSDockerKubernetesLangchainLlamaindexPython
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Reposted 23 Days AgoSaved
Remote
London, UK
Senior level
Senior level
Cloud • Software
The Senior Software Engineer will lead the development of a Python-based platform, enhancing a mature system for open-source collaboration, mentoring teams, and driving innovation.
Top Skills: DebianPostgresPythonUbuntu
25 Days AgoSaved
Remote
London, UK
Senior level
Senior level
Artificial Intelligence • Digital Media • Software • Generative AI
As a Senior Python Backend Engineer at VidRush, you'll build AI-driven video production systems, ship production-level ML/LLM services, and work closely with product teams while ensuring high autonomy and delivery speed.
Top Skills: LlmopsLlmsMlopsOpenaiPythonPyTorchVideo Processing
8 Months AgoSaved
In-Office
London, UK
Mid level
Mid level
Information Technology • Software • Cybersecurity
As a Lead Backend Engineer, you'll manage and enhance Proton's marketing technology systems, integrating tools and supporting campaigns while ensuring security and privacy standards.
Top Skills: HTTPPHPPythonRestSQL
8 Months AgoSaved
In-Office
London, UK
Mid level
Mid level
Information Technology • Software • Cybersecurity
As a Backend Engineer, you'll develop features for Proton Drive, collaborate with teams, perform code reviews, and implement testing strategies.
Top Skills: DockerHTTPMySQLNode.jsOpenapiPHPRestSQL
8 Months AgoSaved
In-Office
London, UK
Mid level
Mid level
Information Technology • Software • Cybersecurity
As a Backend Engineer, you'll design and develop backend APIs using PHP/Symfony, lead complex projects, and ensure high-quality service for B2B clients.
Top Skills: ConfluenceJIRAKubernetesMySQLPHPReactSymfony
8 Months AgoSaved
In-Office
London, UK
Mid level
Mid level
Information Technology • Software • Cybersecurity
The Backend Engineer will develop Proton's services, create scalable solutions, define APIs, and improve user experiences while collaborating with teams.
Top Skills: Php,Symfony,React,Kotlin,Swift,Rust,Kubernetes,Docker,Mysql,Redis,Openapi
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