1 to 25 of 4,714 Python Jobs in London

solutions across data platforms, applications, and operational systems. Experience implementing CI/CD pipelines, automated testing, and modern software engineering practices. Strong proficiency in Python and SQL for enterprise data engineering and integration workloads. Deep understanding of how integration architectures and engineering practices influence data quality, observability, lineage, traceability ...

equivalent practical experience. Minimum 8 years of experience in backend development, with a strong focus on building scalable, high‐performance systems. Technical Skills: Python expertise, with hands‐on experience building backend services and APIs using FastAPI, Flask or similar. Experience in designing and developing end‐to‐end (E2E) tests ...

evaluate AI architectures, and you can sit in a room with engineers and contribute — not observe.Our primary stack is Java and React, with Python supporting scripting, data pipelines, and AI/ML integrations. Our engineering philosophy is AI-native — we expect you to understand and leverage large language models, agentic … regulated financial services environment.Technical Depth and Hands-On DeliveryPrototype solutions, contribute to technical design discussions, and validate approaches by building — using Java, React, or Python as the situation demands.Understand the current landscape of foundation models and make informed product decisions about when to use fine-tuning vs. RAG vs. prompt ...

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 … 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 ...

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 ...

using PySpark within Databricks environments.Proven experience building, publishing, and supporting dashboards and reports using Power BIStrong experience and programming skills in languages such as Python and SQL and the ability to write complex SQL queries.Project experience using one or more of the following technologies: Tableau, Power BI, Cloud, Azure ...

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. ...

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 ...

various Cloud (and related) technologies that will help you to develop your own toolkit.RequirementsSoftware Engineering:• Proficiency in programming languages used in ML, such as Python/Java.• Knowledge of software development best practices and methodologies.• Experience with version control systems (e.g., Git).• Familiarity with CI/CD tools … principles• Experience with cloud platforms (e.g., AWS, Google Cloud, Azure) and containerization tools (e.g., Docker, Kubernetes).• Proficiency in programming languages such as Python, experience with AI/ML frameworks (e.g., TensorFlow, PyTorch), and experience with MLOps frameworks/tools (e.g. Sagemaker pipelines, Azure ML Studio, VertexAI, Kubeflow, MLFlow, Seldon ...

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. ...

Application Engineer (Java/Python | Wealth Management) Location: London Centre 1 day a week Salary: £90,000 + 10 percent Bonus + Outstanding Benefits Build Innovative Technology for a Leading Wealth Management Firm Our client, a highly respected UK wealth management organisation, is looking for a talented Application Engineer with … strong Java and/or Python development experience to join its technology team. This role is ideal for someone who enjoys delivering scalable business-critical applications, working closely with stakeholders and leveraging technology to enhance adviser and client experiences within a wealth management environment. The Role You’ll play ...

Senior Python EngineerLondon (Hybrid/Flexible Working Available)Up to 80,000 + BenefitsAbout the RoleWe are seeking an experienced Senior Python Engineer to join our growing engineering team in London. You'll play a key role in designing, building, and scaling high-performance applications that power critical business functions … technical problems, influence architectural decisions, mentor developers, and help shape the future of our technology platform.What You'll Be DoingDesigning, developing, and maintaining scalable Python applications and servicesBuilding robust APIs and microservices architecturesWriting clean, maintainable, and well-tested codeCollaborating closely with Product Managers, Designers, and Engineering teamsDriving best practices ...

Engineering, Mathematics, or a related technical field Linux: understands the OS architecture, fluent user of the command line, can fluently speak either Perl or Python, UNIX scripting, Java Cloud native: skilled in building and running applications that fully leverages cloud computing, using technologies like microservices, containers, and dynamic orchestration … Exposure to release management tools is needed. Automation/Tools Development: Design/Develop/maintain automated tools for toil reduction, reporting based on python and other scripting language Preferred qualifications, capabilities, and skills KDB+ knowledge AWS experience Kubernetes Terraform We recognize that our people are our strength ...

proficient applied experience Hands‐on practical experience in system design, application development, testing, and operational stability Proficient in coding in one or more languages- Python Experience in developing, debugging, and maintaining code in a large corporate environment with one or more modern programming languages and database querying languages. Overall knowledge ...

platforms, role‐based access control, or entitlement governance at scale Advanced proficiency in one or more programming languages, frameworks, or platforms such as Go, Python, Java, Kubernetes or Terraform Practical cloud‐native experience building and operating services on at least one public cloud provider, such as Amazon Web Services, Microsoft ...

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 ...

teams. Required Skills & Experience Data Engineering & Development Strong expertise in SQL database development and optimization. Hands-on experience with: Snowflake DBT Azure Data Factory Python Experience designing and developing enterprise-scale data pipelines and integrations. Strong knowledge of data modeling, data warehousing, and ETL/ELT practices. Proven ability … data quality frameworks. Exposure to AI, analytics, and advanced data platform capabilities. Skills Azure DevOps, Data Validation, Azure Functions, Cloud Data Warehousing, SQL, Python About the company the company is a global digital transformation solutions provider. For more than 20 years, the company has worked side by side with ...

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 ...

complex datasets to generate actionable insights that inform business and product decisions Desirable: Hands-on coding and prototyping experience in AI/ML development (Python, TensorFlow, PyTorch) Experience with proof-of-concept development and technical validation of new AI technologies Background in data science or machine learning engineering with … operational systems Bachelor's or Master's degree in Computer Science, Engineering, Telecommunications, or related technical field Background in hands-on development with Python, Java, or similar languages (nice to have but not required for day-to-day work) Knowledge of AI ethics, responsible AI practices, and regulatory requirements relevant ...