Top Python Jobs in London

Design, build, operate, and improve cloud-native Kubernetes platforms. Maintain cluster health, GitOps, IaC (Terraform), CI/CD, observability, incident response, cost and performance optimisation. Partner with engineering teams, support deployments, reduce technical debt, and for Lead roles own roadmap, mentor engineers, and manage stakeholder priorities.

Build, optimise and stabilise AWS-based data pipelines (S3, Glue, Redshift, Lake Formation). Resolve technical debt, support the Architect on target-state design, collaborate with client engineering teams to transfer knowledge, and deliver production-ready platforms in regulated, high-volume gaming environments.

Own and operate Databricks-based data platform production support, build and migrate ETL/ELT pipelines to Databricks across Azure/AWS, optimize compute and performance, enforce Delta Lake architecture and data security, implement observability and CI/CD, support multi-tenant onboarding and on-call incident response, and maintain runbooks and SLA metrics.

Lead marketing analytics: own reporting frameworks, dashboards, and data quality; monitor KPIs; run A/B tests and experiments; build attribution, forecasting, segmentation, and budget-allocation models; automate workflows and drive continuous measurement improvements.

Lead a team of cloud engineers to design, implement, secure, and optimize cloud-native landing zones on Azure and GCP. Own IaC (Terraform/Ansible), container orchestration (Kubernetes/Docker), CI/CD, monitoring, cost and security optimization, cross-functional integration, documentation, and mentoring.

The Software Engineer will provide technical support to customers, collaborate with engineering teams, and drive customer success initiatives while leveraging Python and SQL expertise.

Design, deploy and support Azure integration solutions (Service Bus, Data Factory, APIM, Functions, Logic Apps). Build secure Azure infrastructure with IaC (Terraform), implement CI/CD (GitHub Actions), automate with PowerShell/Python, and provide operational support, monitoring, and documentation in a regulated environment.

Investigate and resolve the most complex customer support cases for cloud video security products. Reproduce issues in lab environments, analyze logs and network traces, collaborate with R&D, test fixes and workarounds, write technical documentation, and communicate status to customers and internal teams.

Investigate and resolve complex escalated issues for cloud video security products by reproducing problems in lab, analyzing logs and network traces, collaborating with R&D/test/support/sales, testing fixes and workarounds, writing technical documentation, and occasionally visiting customer sites.

The Data Engineer role focuses on developing predictive models and enhancing data engineering practices to support business objectives. Responsibilities include writing clean code, model evaluation, and collaboration with a global team to improve reporting and campaign management.

Design and build production-grade mission, behavior, and motion planning systems for autonomous ground vehicles in airport airside environments. Drive architecture and algorithm selection, prototype optimization- and learning-based planners, collaborate with perception/localization/controls teams, promote safety and engineering best practices, and mentor engineers.

Build and ship production-quality AI applications and reusable deployment assets (agents, orchestration, evaluation). Support enterprise rollouts, integrate with IT/cloud infrastructure, accelerate client adoption, and champion responsible AI while advising and collaborating with client teams.

Lead tuning and optimisation of sanctions screening models for EMEA, using SQL/Python/R and ML techniques. Design detection scenarios, coordinate implementations, run ATL/BTL tests, support model validation, prepare stakeholder reports, and ensure regulatory-aligned policy and documentation.

Build and operate scalable, fault-tolerant infrastructure and CI/CD pipelines for blockchain and traditional systems. Implement Infrastructure as Code, container orchestration, node provisioning and lifecycle management, improve resilience and observability, and provide on-call support to ensure 24/7 availability.

Provide day-to-day actuarial pricing support to underwriting teams, maintain and validate rating tools, rebuild models in hx Renew using Python, produce portfolio and regulatory reporting (PMDR, Actuarial Function Report), and support a multi-year pricing transformation while progressing toward actuarial qualifications.

Design, develop and tune threat-led detections using KQL and Microsoft Sentinel. Collaborate with the threat team and MSP SOC, implement detection-as-code/CI-CD, tune DLP and Insider Risk controls in Purview, support automation and reporting (Sentinel workbooks), document designs, and help maintain ISO 27001 compliance.

Conduct hands-on penetration tests across web, network, API, mobile, and cloud environments; simulate attacks, produce technical reports and executive summaries, collaborate on remediation, mentor junior testers, and stay current with emerging threats.

Develop and deliver end-to-end Kotlin/JVM services and features for greenfield and brownfield projects. Collaborate on design, code reviews, testing, deployment, monitoring, and integration with internal/external APIs and cross-functional teams to meet product goals.

Develop, verify and calibrate Infoworks ICM wastewater and urban drainage models; perform hydrological assessments; advise clients; support tenders and business development; promote SuDS and sustainable solutions; collaborate across UK, Ireland and France teams.

Hands-on Senior Platform Engineer to design, build, and maintain multi-cloud (AWS/GCP/Azure) platform infrastructure. Responsibilities include IaC (Terraform/Ansible), CI/CD and DevSecOps, Kubernetes (EKS/AKS/GKE) administration, observability, and developer self-service tooling. Mentor junior engineers, drive platform standards, and collaborate across engineering, security, and FinOps to ensure secure, reliable, and cost-effective platform delivery.

Lead architecture and engineering of account compromise detection, response, and remediation for Claude. Scope and deliver complex, adversarial-resilient detection systems, run incident investigations, design automated response flows, threat-model attacker behavior, drive cross-team alignment, set technical standards, and convert investigations into durable automated defenses.

Design, build and maintain high-quality, scalable margin and collateral systems. Collaborate with product and global teams, implement RESTful APIs, apply TDD and clean code, and solve complex engineering challenges in a fast-paced finance environment.

Front-office quant team role designing, implementing, testing and deploying high-performance valuation models and pricers for derivatives. Collaborate with trading desks, engineering, and risk to digitalize derivatives business, optimize performance, deploy models across platforms, support daily trading floor activities, and drive technical innovation.

Support building and maintaining a modern data lakehouse platform: implement storage standards, develop ingestion and transformation pipelines, capture lineage, enforce data quality, collaborate with analytics and business teams, follow governance/security practices, participate in agile delivery, and troubleshoot issues with senior engineers.

This role involves collecting data for model training, operating cloud infrastructure, and collaborating with scientists to enhance dataset quality and efficiency.