Top Python Jobs in London

Build and maintain infrastructure, tools and services to support AI research and engineering. Deploy and operate services with Kubernetes and Docker, manage cloud infrastructure (Terraform/AWS), support CI/CD, and enable ML application deployment, orchestration, and accelerator hardware management.

The Machine Learning Engineer will design, train, deploy, and evaluate AI models to address public sector challenges, ensuring high-quality data training and evaluating systems.

Design and build evaluation, observability, and reliability infrastructure for AI/LLM/agent workflows. Define SLOs/SLIs, monitoring, drift detection, testing pipelines, and guardrails. Partner across platform, product, security, and data science teams to enable safe, scalable AI adoption and participate in on-call rotations.

Design and deploy machine learning models for financial document processing, optimize large language models, collaborate with cross-functional teams, and guide junior peers in a fast-paced environment.

Lead development of scalable marketing technology for automation, measurement, and personalization. Collaborate with engineering, data science, and analytics to build measurement and optimization tools, integrate generative AI, define requirements, write user stories and success metrics, and surface data infrastructure and schema for global marketing campaigns.

Lead analytics for Payment Operations risk: define KRI frameworks, set risk thresholds, build control assurance and reconciliation models, create reliable data pipelines and visualisations, and partner with risk and auditors to prevent financial loss and ensure compliance.

Build and maintain the Payin Platform that handles how money enters Wise. Design Payin Session and Payment abstractions, ensure reliability and scalability for high-volume transactions, collaborate across teams, write testable code, drive end-to-end ownership, and improve APIs and systems for excellent customer experience.

Build and scale Wise's Acquiring Platform to receive international payments. Design and implement backend services and RESTful APIs, integrate payment methods (Google Pay, Apple Pay, PIX, UPI), expand platform into ecommerce stores and PSPs, work on distributed systems, collaborate with stakeholders, and deliver shippable milestones.

Seeking a Senior Software Engineer for the Beacon Core Engineering team to design, build, deploy, and maintain software tools and assist clients using AI agents, focusing on quality code and collaboration.

Build and maintain Samsara's Cloud Governance Platform across AWS and GCP, focusing on cloud IAM guardrails, automated compliance controls, and software supply-chain security. Implement SAST/DAST and secure CI/CD patterns, design scalable, reliable systems, translate regulatory requirements into automated controls, collaborate cross-functionally, and own components end-to-end while mentoring teammates and shaping the roadmap.

Join BlackRock as a Quantitative Associate in Portfolio Risk, focusing on model development, data analysis, and automation in risk management processes, including AI integration.

Conduct research in visual generative modelling, multimodal learning and world models; design and run experiments, publish findings, and collaborate with engineering and silicon teams to align models with hardware-aware ML and AI compute.

Conduct hardware-aware AI research: generate ideas, design and run ML experiments, implement performant scalable systems, publish and present results, and collaborate with researchers, silicon and software engineers to guide next-generation AI hardware.

Serve as the technical lead for a portfolio of customers, designing and delivering SaaS integrations, driving adoption and measurable business outcomes, building reusable AI-first delivery artefacts, managing delivery scope and risks, and sharing best-practice patterns across the team.

The Senior Technical Support Engineer will provide expert support for Circle's API products, resolve technical issues, manage escalations, improve support processes, and contribute to the team’s goals for customer experience and operational excellence.

The Senior Forward Deployed Engineer will lead the technical design and implementation of AI solutions, manage projects end-to-end, and collaborate with teams to ensure successful deployments.

The role involves developing cloud platforms, deploying AI services, maintaining systems, and integrating third-party products in cloud environments.

As a C++ Engineer, you will develop machine learning features, integrate models, maintain SDKs, and collaborate across teams for software performance and enhancements.

Deliver platform transformation programmes for wealth, asset and banking clients. Lead implementation, integration, migration, testing and deployment activities. Gather and document business and technical requirements, optimise operating models and workflows, support data migration and system integration, and act as trusted advisor to stakeholders, vendors and project leadership.

The role involves driving transformation across investment platforms using Aladdin, supporting implementation, integration, and data migration, collaborating with stakeholders, and optimizing workflows.

Lead the Growth analytics team to deliver timely, accurate insights: curate datasets, surface metrics, perform statistical modelling, build repeatable explanatory frameworks, partner with data science and stakeholders, and communicate findings to influence company strategy. Manage and grow a team of analysts.

Generate insights to inform company and customer decisions by curating datasets, surfacing metrics, performing statistical modelling, and deep-dive analysis. Analyze growth drivers, customer segments and cohorts, and link acquisition/activity to marketing and product initiatives to measure realised financial returns. Communicate findings through data visualisation and stakeholder management.

The engineer will evaluate large-scale Linux systems, design workloads, build execution systems, interpret results, and ensure reliability for production readiness.

As a Senior Solutions Architect, you'll design integration solutions for insurance clients, lead technical evaluations, and guide sales cycles, ensuring seamless onboarding and integration of hx Renew.

Lead strategic projects to improve EMEA customer experience and uplift operational functions. Use data-driven analysis (SQL/R/Python, BI) to solve problems, align stakeholders, track progress, surface risks, and execute special deep-dive requests from leadership.