1 to 25 of 3,015 Python Jobs in London

99436955280Posted: 2026-08-19Location: London, England, United KingdomCategory: Technology, Applications Development, ProfessionalCompany: CitiWe are seeking a senior Python Developer within Risk Technology to join a multi-year strategic initiative: the design and delivery of AI-enabled automation across the end-to-end quantitative model lifecycle, covering all market risk … analysts, model validators, data engineers, and the program leadership to translate workflow automation requirements into robust, production-grade solutions.Key ResponsibilitiesEngineering & DeliveryDesign, develop, and maintain Python-based services, pipelines, and tools supporting automation of the quantitative model lifecycle across market risk and credit risk model families.Build and operate automated testing ...

monitoring, observability, exception management, and automation across Market Data and Integration workflows.The Senior Product Analyst will investigate complex data and workflow issues using SQL, Python, logs, dashboards, and source-system analysis; support UAT, regression testing, release readiness, production validation, defect triage, and post-release monitoring; and act as a senior … based data platforms.Ability to write clear functional specifications, data mappings, user stories, acceptance criteria, test scenarios, and operational documentation.Hands-on capability with SQL and Python for data investigation, validation, reconciliation, prototyping, automation, or issue analysis.Essential knowledge of key financial instruments and risk analytics concepts, including bonds, equities, credit default swaps ...

Systems Developer x 2 Purpose of Role/Job Overview We are seeking 2 talented and motivated Python Developers, one with 1-2 years experience and the other with 2-4 years of experience to join our clients technology team. You will play a key role in building, and maintaining … candidate who is driven to succeed, take ownership and pride in delivering exceptional levels of customer service. Key Accountabilities Design, develop, test, and maintain Python applications, scripts, and services Build and maintain APIs and integrations with third-party systems and internal platforms Write clean, well-documented, and testable code following ...

regulated environment. The role is Hybrid and requires onsite attendance in Central London 23 days per week. Technical Skills C#, ASP.NET Core, Entity Framework Python, FastAPI JavaScript, TypeScript React or Angular REST APIs, Swagger/OpenAPI SQL Server, PostgreSQL, NoSQL and vector databases Azure App Services, Azure Functions, API Management … front-end applications using modern JavaScript frameworks such as React or Angular Develop secure and scalable back-end services, APIs, and integrations using .NET, Python, and Azure services Design and implement AI-powered solutions including Agentic AI workflows, copilots, and intelligent automation services Integrate Large Language Models (LLMs), AI APIs ...

also contribute to engineering excellence through best practices, mentoring, and thoughtful technical direction.Job responsibilitiesDesign scalable, reusable data processing and data quality frameworks using Python, PySpark, and dbtBuild and optimize batch and streaming data pipelines with strong performance, fault tolerance, and observabilityDevelop and operate workflow orchestration (e.g., Apache Airflow) to schedule … manage data movement and transformationsModel and transform data for analytics using SQL and dbt to support business intelligence and reporting workloadsWrite production-grade Python/PySpark code with disciplined testing, performance tuning, and maintainable object-oriented designImplement infrastructure-as-code (e.g., Terraform) to provision and manage cloud-based data platform ...

Azure Container Apps, Azure Monitor, Azure SQL, Cosmos DB, Azure Data Lake, Fabric/OneLake.Data & Analytics: Databricks, Unity Catalog, Azure Data Factory, PySpark, Python, SQL, Power BI, data pipelines, transformations, reconciliation, and data quality.Application & Integration: .NET/.NET Core, Angular, REST APIs, microservices, authentication, authorization, and secure enterprise integration.DevOps & Delivery ...

DevOps).Experience with cloud platforms (e.g., AWS, Azure, GCP) and their relevant services.AI/ML:Familiarity with AI/ML concepts and frameworks (e.g., Python, TensorFlow, PyTorch, LangChain, LlamaIndex).Direct experience in developing, integrating, and deploying agentic AI systems.Leadership & Soft Skills:Excellent problem-solving, analytical, and critical thinking skills.Strong communication ...

level and we are looking for data engineers who have a variety of different skills which include some of the below. · Strong proficiency in Python · Extensive experience with cloud platforms (AWS, GCP, or Azure) Experience with: o Data warehousing and lake architectures o ETL/ELT pipeline development ...

highly technical engineers. Demonstrated experience delivering enterprise-scale software platforms, APIs, and distributed systems. Strong proficiency in C++, Java (Spring Boot), and/or Python (FastAPI or similar), with the ability to guide engineering teams on architecture, design, and implementation.Experience designing, building, and supporting RESTful APIs and microservices-based architectures. ...

Nexus, etc.Good understanding on Containerisation solutions, e.g., K8, Docker, Kaniko, etc.Proficiency in at least one of the standard programming languages – Java/JavaScript, C#, Python, or similar Object-oriented programmingProficiency in at least one of the standard scripting languages – Terraform, Bash, Ansible, etc.Good understanding of Software engineering concepts, e.g., coding ...

orchestrating data flows between EBS and other applications.Technical Proficiencies: Proficiency in programming and scripting languages relevant to the enterprise stack. This may include Python/Django, Java or C# for application development. Solid skills in SQL and working with relational databases (particularly Oracle Database and PL/SQL) are required. ...

role-based access control, or entitlement governance at scaleAdvanced proficiency in one or more programming languages, frameworks, or platforms such as Java, Spring, Go, Python, Terraform, or KubernetesPractical cloud-native experience building and operating services on at least one public cloud provider, such as Amazon Web Services, Microsoft Azure ...

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level.As a Senior Lead Software Engineer at JPMorgan Chase within the Commercial & Investment Bank's Markets Research ...

DevOps & AutomationKnowledge in maintaining CI/CD pipelines using Azure DevOps, GitHub Actions, etc. for ADF, Databricks and ML models deployments.Develop automation scripts using Python, PowerShell, or Bash to reduce manual intervention and improve service reliability.SQL and Data Warehouse OperationsWrite, optimize, and troubleshoot SQL queries for:Data validationRoot cause analysisReport … orchestrationAzure Machine Learning: pipelines, model deployment, monitoringPower BI Service: dataset refreshes, access control, report diagnosticsDevOps & AutomationCI/CD: Azure DevOps, GitHub Actions, YAML pipelinesScripting: Python, PowerShellMonitoring: Azure Monitor, Log Analytics, Alerts, Application Insights SQL & Data WarehousingSQL skills for debugging, data validation, and optimizationExperience with Azure SQL DB, or SQL ServerFamiliarity ...

understanding of software engineering practices including Git/GitHub, CI/CD, development environments, testing and release management . Strong hands-on experience with Python and SQL . Experience working with modern cloud-based data platforms across AWS, Azure and/or GCP . Experience with contemporary data engineering technologies … ability to collaborate effectively with engineers, technical leads and wider stakeholders. Technical Environment Experience with some of the following technologies would be beneficial: Python SQL Cloud platforms – AWS, Azure or GCP Databricks Apache Spark/PySpark Kafka/event-driven architectures Airflow dbt Git/GitHub CI/CD Infrastructure ...

into Copilot scenarios, prompt flows, connectors and agent behaviours, defining secure, scalable solution architectures.Build and maintain AI components (e.g. RAG, classification, recommendation, summarisation) using Python and modern ML/LLM frameworks.Implement end-to-end MLOps pipelines for development, testing, deployment and monitoring of Copilot and AI solutions, and deploy them … Copilot and/or agentic AI solutions (e.g. Microsoft 365 Copilot extensions, Azure OpenAI-based copilots, custom AI assistants/agents).Strong proficiency in Python for AI/ML development, including use of common ML and data libraries (e.g. TensorFlow/PyTorch, scikit-learn, pandas, NumPy).Proven experience integrating ...

this position requires comfort with ambiguity, strong execution discipline, and accountability for results.Essential Job FunctionsDesign, build, and maintain reliable, scalable data pipelines using Python and PySpark on the Microsoft Azure data platform.Develop and operate batch and incremental data pipelines leveraging Azure Data Factory for orchestration and Azure Data Lake Storage … Computer Science, Data Analytics, or a related field, or equivalent experience.Minimum of 3–5 years of experience in data engineering or analytics engineering.Proficiency in Python for building and maintaining data pipelines, automation, and data processing workflows, including use of PySpark.Proficiency in SQL for querying, transformation, and analytical data processing.Solid understanding ...

platform delivery · Prepare and structure data so that it can be used effectively by AI-enabled analytics and data platform capabilities. · Work with SQL, Python, PySpark, notebooks or platform-native tooling to transform, test and expose data for downstream AI and analytics use cases. · Collaborate with data engineers and architects … Good understanding of data engineering or analytics engineering concepts, including data modelling, pipelines, ELT/ETL, data quality and analytical data products. · Experience using Python, PySpark, notebooks or equivalent platform tooling for data preparation, analysis, testing or automation. · Understanding of semantic models, business definitions, metrics, metadata and how they improve ...

delivering data, analytics or AI work, with a strong interest in tax, technology and transformation. Solid hands-on technical skills – for example SQL and Python, data manipulation and engineering, and exposure to generative AI/LLM tools, machine learning or analytics platforms such as Power BI or Alteryx. Experience with ...

expertise across:Modern data stack & DataOps (Snowflake, Databricks)Platform architecture & engineering (ETL/ELT, modelling, warehousing)Cloud platforms (AWS, Azure, GCP)Programming (SQL essential, Python, Spark, Java/Scala)Data governance & security (including GDPR)Advanced analytics & AI/MLExperience building and scaling enterprise data platforms and leading transformation at scaleWhat ...

privacy controlsSkills:• Strategic thinker with curious mindset and strong problem-solving skills• Ability to communicate complex concepts in a clear, concise manner• Languages: Terraform, Python, SQL, PowerShell.• CI/CD: Azure DevOps pipelines for data platform deployments.• Databricks: Delta Lake, Unity Catalog, Workflows, Notebooks, Clusters, MLflow.• Azure: ADLS Gen2, Azure ...

algorithms.Can explain how the models work to non-technical audiences, advocating for interpretability and audit best practices.Experience working with structured and unstructured datasets.Proficient in Python, leveraging key data science libraries (NumPy, Pandas, scikit-learn) and applying object-oriented programming principles to develop efficient, scalable solutionsHands-on experience experimenting with Generative ...

scalable solutions that power real-time trading and research in a fast-paced financial environment. We seek candidates with strong expertise in any of Python/KDB/C++, and who can leverage their knowledge of AI to drive innovation in data engineering, analytics, and automation.Experience leveraging AI in development … design, application functionality, and technical operations/processes to meet the demands of a rapidly evolving financial landscape.Serve as a subject matter expert in Python, KDB/Q, data engineering, and AI, contributing to firmwide best practices and technical excellence.Champion diversity, inclusion, and collaboration within large, global teams.Required Qualifications, Capabilities ...

overall delivery responsibility, who you can lean on and learn from to hone your skills around management and IT deliveries.You must have experience with Python and AWS.Key Activities:System development - both front-end, back-end and integrationsWorkflow planningProcess optimization and quality assuranceImplementing customer requirements for the design of new featuresAnalysis … Software Engineering, Computer Science, Information Technology or similarA curiosity to explore new technologiesIdeally a full-stack or backend technical background with experience in Python, with either Typescript or React and TerraformExperience across the full software development lifecycleAbility to code within projectsExperience in Databases, including MongoDB, SQL or Document DatabaseExperience ...

macro-first framework that auto-generates models across 26+ ad platforms.• Add new platform integrations and extend existing ones using platform YAML definitions and Python ingestion functions.• Contribute to the Python CLI tooling that orchestrates client onboarding, config compilation, and pipeline execution.• Help maintain GCP infrastructure (BigQuery, Cloud Run, Cloud … suggest improvements, and contribute to documentation (MkDocs).About YouRequired:• Experience with dbt - writing models, using Jinja basics, running tests and seeds.• Good knowledge of Python - comfortable writing scripts, working with libraries like Pandas, and reading existing codebases.• Expert knowledge of SQL - writing queries, joins, aggregations, and window functions.• Experience with ...