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Top Software Engineer Jobs in London

4 Days AgoSaved
Easy Apply
Remote
London, UK
Easy Apply
Mid level
Mid level
Software
As a Backend Software Engineer, you'll engage in full-cycle project development, enhance system performance and reliability, and collaborate with your team to improve observability features using various programming languages and technologies.
Top Skills: CC++GoGrafanaKafkaKubernetesPrometheusPythonRust
Reposted 18 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Gaming
Lead the architecture and development of advanced software systems, mentor engineers, define standards, and ensure high reliability in software solutions.
Top Skills: C#Ci/CdGitUnity
Reposted 13 Days AgoSaved
In-Office or Remote
London, UK
Senior level
Senior level
Artificial Intelligence • Machine Learning • Generative AI
The Software Engineer will design, build, and scale privacy features and infrastructure for OpenAI's products, ensuring user privacy through advanced technologies and collaborating with cross-functional teams.
Top Skills: Cloud Orchestration SystemsConfidential ComputingEnd-To-End EncryptionKubernetesTrusted Execution Environments
Reposted 13 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Payments • Software
Build and maintain APIs and systems for money movement, debug production issues, mentor engineers, and collaborate with stakeholders.
Top Skills: APIsProgramming Languages
Reposted 13 Days AgoSaved
In-Office or Remote
London, UK
Senior level
Senior level
Software
As a Senior Backend Software Engineer, you will develop and maintain the SaaS platform, focusing on user-centric design and implementation using a variety of technologies. Your role involves collaborating with teams to meet customer needs and enhance the product.
Top Skills: .Net CoreC#Circle CiDockerGoogle Cloud PlatformKubernetesLinuxPostgresRabbitMQReactTerraformTypescript
Reposted 13 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Fintech
Join Optiver's London Autotrading team to develop and optimize software for high-frequency trading systems, ensuring rigorous performance and reliability in trading operations.
Top Skills: CC++Python
19 Days AgoSaved
Hybrid
London, UK
Senior level
Senior level
Fintech • Mobile • Payments • Software • Financial Services
The Senior Software Engineer will build a fraud engine for the Receive Risk team, focusing on high-performance, low-latency systems and collaborating with various teams to deliver features while managing risk.
Top Skills: JavaKafkaMessaging SystemsMicroservicesRabbitMQSQL
Reposted 4 Days AgoSaved
Easy Apply
London, UK
Easy Apply
Mid level
Mid level
Cloud • Software
The Lead Golang Software Engineer develops server solutions, leads technical designs and code reviews, mentors colleagues, and ensures the quality of engineering practices in the Commercial Systems unit.
Top Skills: AICloudData ScienceGoIotPerformance EngineeringSecuritySoftware EngineeringUbuntu
Reposted 4 Days AgoSaved
Easy Apply
Remote
London, UK
Easy Apply
Mid level
Mid level
Cloud • Software
The Python Software Engineer will develop and maintain test automation tools for hardware certification and improve Linux testing methods.
Top Skills: CCheckboxLinuxPythonUbuntu
Reposted 4 Days AgoSaved
Easy Apply
In-Office or Remote
London, UK
Easy Apply
Mid level
Mid level
Cloud • Software
You will build and maintain container images, automate CI/CD processes, engage with the community, and mentor junior team members in a collaborative environment.
Top Skills: Concourse CiDockerGithub ActionsGoJenkinsKubernetesPython
Reposted 4 Days AgoSaved
Easy Apply
London, UK
Easy Apply
Senior level
Senior level
Cloud • Software
Lead Python Software Engineer responsible for developing solutions, collaborating on designs, mentoring team members, and enhancing engineering practices.
Top Skills: AirbytePythonRangerTemporalTrino
Reposted 4 Days AgoSaved
Easy Apply
Remote
London, UK
Easy Apply
Mid level
Mid level
Cloud • Software
Develop and enhance dqlite, a distributed SQLite database, including debugging, implementing features, and engaging with the open source community.
Top Skills: CGoRaft
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Reposted 4 Days AgoSaved
Remote
London, UK
Mid level
Mid level
Healthtech
The Software Engineer will build customer-facing products for healthcare, focusing on full-stack feature development and user experience, while engaging with customers and iterating on the product based on feedback.
Top Skills: Fast ApiGCPGoPythonReactReact NativeTypescript
Reposted 4 Days AgoSaved
Remote
London, UK
Mid level
Mid level
Food
Build backend features for restaurant partners, identify technical opportunities, own projects, collaborate with a team, and ensure service quality and performance.
Top Skills: Cloud ServicesFlaskGoPythonRuby
Reposted 4 Days AgoSaved
Remote or Hybrid
London, UK
Senior level
Senior level
Energy
We are looking for a Senior Fullstack Software Engineer to join our team, working on building and optimizing systems for electric car leasing.
Top Skills: AWSGraphQLNext.JsNoSQLPostgresPythonReactTypescript
Reposted 4 Days AgoSaved
Easy Apply
Remote
London, UK
Easy Apply
Mid level
Mid level
Database • Analytics
Analyze and optimize ClickHouse database performance, develop performance tests, support engineering teams, collaborate with core teams, and engage with the open-source community.
Top Skills: C++Database InternalsUnix Systems
Reposted 14 Days AgoSaved
In-Office or Remote
London, UK
Mid level
Mid level
HR Tech • Other • Professional Services
As a Software Engineer, you will help train large-language models in code evaluation and training, focusing on Ruby, with an emphasis on code review and improvement.
Top Skills: Ruby
Reposted 14 Days AgoSaved
In-Office or Remote
London, UK
Mid level
Mid level
HR Tech • Other • Professional Services
Train large-language models to improve code quality by comparing snippets, providing feedback, and refining AI-generated code. Requires strong communication skills and attention to detail.
Top Skills: C
Reposted 14 Days AgoSaved
In-Office or Remote
London, UK
Mid level
Mid level
HR Tech • Other • Professional Services
Responsible for training large-language models by reviewing, ranking, and improving AI-generated code. Requires strong software engineering skills.
Top Skills: Java
Reposted 14 Days AgoSaved
Easy Apply
In-Office
London, UK
Easy Apply
Mid level
Mid level
Financial Services
The Software Engineer will build and optimize data processing systems, improve data quality, and manage automated data pipelines for internal teams.
Top Skills: C++DockerGoJavaKubernetesPythonSQL
Reposted 14 Days AgoSaved
Easy Apply
In-Office
London, UK
Easy Apply
Junior
Junior
Blockchain • Cryptocurrency
As a Backend Engineer, you will design, build, and maintain scalable backend services, collaborating with team members on new features and ensuring product quality.
Top Skills: JavaKotlinPostgresScala
Reposted 14 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Artificial Intelligence
Design and maintain microservices in a hybrid cloud environment, improve software reliability, and contribute to a collaborative developer community. Manage application lifecycle and support customer acquisition efforts through automation.
Top Skills: .Net CoreC#GrafanaKafkaKubernetesPostgres
Reposted 14 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Artificial Intelligence
As a Backend Software Engineer at DeepL, you'll design, implement, and maintain microservices, ensuring reliability and automating processes while collaborating with the engineering team to improve customer acquisition flows.
Top Skills: .Net CoreC#GrafanaKafkaKubernetesPostgres
Reposted 14 Days AgoSaved
Hybrid
London, UK
Mid level
Mid level
Fintech • Professional Services • Consulting
As a Financial Software Engineer, you will design, architect, and build systems to enhance liquidity access for Capital Market clients, while leading projects and mentoring junior members.
Top Skills: Financial SoftwareProgrammingSoftware EngineeringTechnology Agnostic
Reposted 14 Days AgoSaved
Hybrid
London, UK
Entry level
Entry level
Fintech • Professional Services • Consulting
As a Financial Software Engineer, you'll build and improve financial systems, ensuring access to liquidity and capital for clients, while engaging in client relations and technical tasks.
Top Skills: Client ManagementFinancial SystemsProgrammingSoftware Engineering
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