51 to 75 of 80 Python Jobs in the City of Westminster

Data Scientist

Location
City of Westminster, England, United Kingdom
code, not notebooks. Expert Python. Comfortable in a real production codebase — you take a model from idea to production and monitor it. We use Python for ML/AI services and TypeScript around it, on AWS and PostgreSQL. Statistics you can defend. Experimental design, causal inference, measuring the real effect ...

Databricks Solution Engineer

Location
Westminster, West End, United Kingdom
within enterprise environments 4+ years of hands-on experience designing and implementing solutions on the Databricks Lakehouse Platform Strong expertise in Apache Spark, SQL, Python, Delta Lake, and modern data engineering practices Experience building and optimizing Extract, Transform, Load and Extract, Load, Transform data pipelines for scalable analytics and artificial … Databricks Lakehouse Platform. Design and implement scalable data and analytics solutions leveraging Databricks technologies Build, maintain, and optimize data pipelines using Apache Spark, SQL, Python, and Delta Lake Develop governed datasets and data products that support reporting, analytics, and artificial intelligence initiatives Partner with business stakeholders and technical teams ...

Senior Quant Developer: Risk, Trading & Data Modeling

Location
City of Westminster, England, United Kingdom
private equity. You will work with internal quant analysts, PMs and risk teams to enhance risk and trading data platforms. The role emphasizes strong Python skills, databases and cross-team collaboration, within Blackstone's technology organization. #J-18808-Ljbffr ...

Full-Stack Engineer — AI-Driven Web Apps & Integrations

Location
City of Westminster, England, United Kingdom
United Kingdom is seeking a Full Stack Engineer to design, build, and support scalable web applications and integrations. You will leverage Java, Python, and React to deliver AI-enabled features and secure, compliant solutions across customer-facing and internal platforms. You will collaborate with product, marketing, and partners to translate ...

Data Scientist, Retrieval & Agentic Systems — Hybrid London

Location
City of Westminster, England, United Kingdom
drive narrative generation, collaborating with Product and Engineering to advance the Corestream roadmap. The role requires 3+ years in DS/AI Eng, Python/SQL proficiency, and a strong product focus. #J-18808-Ljbffr ...

Production Engineering Manager

Location
City of Westminster, England, United Kingdom
scale distributed systems, including incident management, capacity planning, and performance optimizationExperience coding and debugging in at least one systems or scripting language (such as Python, C++, Go, or Bash) and contributing technically alongside a teamExperience setting team goals, managing execution against roadmaps, and communicating infrastructure strategy to technical ...

Python Software Engineer

Hiring Organisation
VIQU IT
Location
London, Covent Garden, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £500/day Inside IR35
Python/Applied AI Engineer – Contract Duration: 3 months Location: Remote IR35: Inside IR35 VIQU are in need of a Python engineer to support a customer with building an AI Chatbot using Python and LlamaIndex. Key Technologies: Python 3.12+ LlamaIndex/RAG Azure AI Foundry/OpenAI Typesense/Vector … Search PostgreSQL/Pydantic Plotly Dash Key Duties: Develop and enhance production-grade Python AI applications and chatbot capabilities. Build and improve RAG pipelines, retrieval and document search. Extend LlamaIndex agents, workflows, retrievers and tool-calling capabilities. Integrate LLMs, APIs, databases and structured organisational data. Improve AI answer quality, citations ...

Platform / DevOps Engineer

Location
City of Westminster, England, United Kingdom
delivery pipelines. Docker fluency building, slimming, tagging, and shipping images through a registry. Deep understanding in VPC, Subnets, Routing, Gateways, trust boundaries. Comfortable in Python and Bash to glue systems together and automate operations. Security instincts. Sound secrets management and least‐privilege IAM as a default, not an afterthought. Polyglot … comfort. You can read across Python, TypeScript, and Java well enough to unblock a build or debug a pipeline you don't need to own those apps, just keep them shipping. A bias to ship and automate. You'd rather write the automation once than do the manual step twice. ...

Vice President, Identity and Access Management

Location
City of Westminster, England, United Kingdom
An exciting opportunity is available to join this group for a senior experienced leader with a technical background in Identity & Access Management. They will lead the team and provide the technical capability to support the ...

Applied AI Engineer, Markets Operations - Associate

Location
Westminster, West End, United Kingdom
specialists, operations stakeholders, and business partners to improve operational workflows, controls, and the software development lifecycle. You will focus on hands-on engineering across Python services, APIs, data pipelines, infrastructure, monitoring, and production readiness. You will build domain knowledge across Markets Operations and translate real workflow pain points into durable … Skills Hold a Bachelor's or Master's degree in Computer Science, Software Engineering, a related field, or equivalent practical experience Demonstrate strong Python programming skills Design, develop, and integrate RESTful APIs, such as with FastAPI Build and support ETL and data pipeline engineering workflows Apply Infrastructure as Code practices ...

QA & Test Infrastructure Engineer

Location
City of Westminster, England, United Kingdom
What You\'ll Own Test Infrastructure and Frameworks Build and own the test frameworks and harnesses our engineers use across services written in Java, Python, and TypeScript. Own test execution in CI: parallelisation, sharding, caching, selective test runs based on what changed, and keeping the feedback loop fast enough that … This is a software engineering role and you\'ll be judged on the code you write. Strong programming ability in at least one of Python, Java, or TypeScript, and comfort reading all three. Our services span them. Real experience owning test automation in CI/CD, including the unglamorous work ...

Lead Machine Learning Engineer

Location
City of Westminster, England, United Kingdom
Machine Learning algorithms (e.g. Logistic Regression, Random Forest, XGBoost, etc.) and modern Deep Learning algorithms (e.g. BERT, LSTM, etc.) < Strong knowledge of SQL and Python's ecosystem for data analysis (Jupyter, Pandas, Scikit Learn, Matplotlib) Strong software development skills (Python is the preferred language) Proven experience in deploying ML/ ...

Senior Data Scientist, Product Analytics

Location
City of Westminster, England, United Kingdom
area Translate complex multilingual data insights into compelling narratives for product, engineering, and executive audiences; influence roadmap prioritization through data. Write advanced SQL and Python to build scalable, automated analytics pipelines and self-serve dashboards Collaborate with cross-functional teams to architect and implement end-to-end data pipelines … experience building ML/NLP models at production scale (e.g., text classification, semantic similarity, quality scoring) You have advanced proficiency in SQL and Python, with ability to write clean, production-quality code You have experience working with large-scale, unstructured text data and LLMs — including prompt design, evaluation (e.g., golden ...

ML Ops Engineer

Location
City of Westminster, England, United Kingdom
dependency layers. Reliability, security and engineering quality Improve system robustness, scalability and cost efficiency through automation, observability and infrastructure as code. Write production‐grade Python for long-running services, deployment tooling and ML workflows. Establish testing, validation, release and incident-management practices for ML systems. Collaborate with platform, security … platform. Exposure to regulated or high-reliability production environments. Experience with PyTorch or similar ML frameworks and model‐serving technologies. Technology environment Language: Python ML tooling: PyTorch or similar frameworks, experiment tracking and model registries Workflow orchestration: ML workflows for training, validation, deployment and retraining 3-7 years' professional experience ...

Sr Lead Software Engineer Commodities UK

Location
City of Westminster, England, United Kingdom
skills Formal training or certification on software engineering concepts and advanced applied experience Experience working with Front Office Trading Desks High proficiency in Python Strong problem-solving skills, with the ability to diagnose and resolve complex reporting and system issues Proven ability to liaise with business users such as Product … little to no oversight Practical cloud native experience Preferred qualifications, capabilities, and skills Hands-on experience developing on the Athena platform or a comparable Python risk management platform Domain knowledge of Commodities products and derisking workflows Experience building or integrating Risk and PnL reporting infrastructure in a Front Office environment ...

Engineering Team Lead | Tech | London, UK

Location
City of Westminster, England, United Kingdom
direction for Virtual Personas Delivery of the Product roadmap Managing a team consisting of a range of skillsets and experience Full stack development, across Python/FastAPI services and React/TypeScript front ends Continuously improving the team's processes for iterative development, including embedding automated testing and CI quality … supporting, and encouraging our developers Conducting regular 121's, setting objectives and assisting with tailored development plans Our engineering environment includes technologies such as Python (FastAPI), LangChain/LangGraph for multi-agent LLM orchestration, React/TypeScript, PostgreSQL, MongoDB, Redis, Azure (App Service, Container Registry, Blob Storage), Docker, GitHub Actions ...

Lead Risk Software Engineer LDN

Location
Westminster, West End, United Kingdom
hackajob is partnering directly with JPMorganChase to hire for this role. JOB DESCRIPTION We are seeking an experienced Senior Python Developer to join our Athena Rates development team to work on Risk and PnL framework in Rates LOB. In this role, you will architect, design, develop, and integrate sophisticated solutions … finance, delivering high-impact systems that enable critical risk management and profit & loss analysis for our trading operations. Key Responsibilities As a Senior Python Developer on our team, you will build and maintain robust software solutions for rates trading activities. You will collaborate closely with quantitative analysts, traders, risk managers ...

EMEA Marketing Measurement Lead

Location
City of Westminster, England, United Kingdom
discipline such as Statistics, Engineering, Sciences, or equivalent practical experience. 9 years of experience using analytics to solve product or business problems, coding (e.g., Python, R, SQL), querying databases or statistical analysis. 3 years of experience in people management, in leading, mentoring, and developing technical and analytical teams. Experience writing … reviewing, and maintaining code for data manipulation and analysis using programming languages (such as Python, R, SQL). Experience presenting to non-technical audiences. Preferred qualifications: PhD in a quantitative fields such as Statistics, Mathematics, Economics, Operations Research, Data Science. Experience in advanced marketing measurement methodologies (e.g., conversion lift ...

Credit & Commercial Manager

Location
Westminster, West End, United Kingdom
insights and qualitative feedback. Define and evolve a multi-channel commercial strategy that balances business growth with responsible lending. Discover insights from datasets using Python and SQL to uncover opportunities and optimise our strategy Stay ahead of competitors by monitoring trends, and acquisition channels and adapting quickly. Collaborate cross-functionally … refine strategies to maximise both customer value and business performance. What you'll need to succeed Daily coding experience, with proficiency in both Python and SQL ideally Experience in credit risk or commercial strategy roles, ideally within consumer lending or Motor Finance Strategic and analytical thinking , with the ability ...

Assistant Director -Data Science

Location
Westminster, West End, United Kingdom
architectures such as transformers, with the ability to assess where advanced approaches outperform classical methods and where they do not Strong programming skills in Python, with practical experience deploying machine learning models and services into production environments Practical experience using AI coding assistants and agentic developer tools such as Claude … augmented generation (RAG), and evaluation techniques, and the ability to apply them to real product challenges Experience with agentic AI frameworks and libraries in Python, such as AWS Bedrock AgentCore, LangChain/LangGraph, CrewAI, or the OpenAI Agents SDK, with an understanding of agent design patterns including tool use, orchestration ...

Marketing Analytics Lead

Location
City of Westminster, England, United Kingdom
familiarity with intent data (6sense), sales engagement platforms (Outreach, Salesloft, Gong), and conversational analytics Proficiency in SQL and at least one statistical programming language (Python, R, etc.) Experience with marketing platforms (Google Analytics, Salesforce, Marketo, etc.) Behavioural Expectations Strong background in bringing data to life for decision makers Skilled … familiarity with intent data (6sense), sales engagement platforms (Outreach, Salesloft, Gong), and conversational analytics Proficiency in SQL and at least one statistical programming language (Python, R, etc.) Experience with marketing platforms (Google Analytics, Salesforce, Marketo, etc.) Behavioural Expectations Strong background in bringing data to life for decision makers Skilled ...

Lead Site Reliability Engineer

Location
Westminster, West End, United Kingdom
Work as a core member of the software engineering team, participating in daily standups and design discussions. Contribute directly to the codebase (Java, Kotlin, Python) to implement reliability improvements, performance optimisations, bug fixes, and automation. Lead the design and rollout of modern SRE patterns across trading systems, including automated remediation … designing and implementing observability frameworks for mission critical systems. Proven ability to lead incident response and drive long term remediation. Solid programming skills in Python, Java, or Kotlin, with the ability to contribute production grade code. Experience with microservices, distributed systems, and event driven architectures. Strong understanding of CI/ ...

Senior Platform Engineer — Python & Platform Leader

Location
City of Westminster, England, United Kingdom
Apollo, Medialab’s marketing intelligence platform. You will shape how we build, ship and operate software across the business. This is a hands-on, Python-first role, collaborating with the Analytics team and Head of Data & Engineering to balance strategy with practical delivery. You will write production code ...

Lead Platform Engineer

Location
City of Westminster, England, United Kingdom
Apollo, while working closely with the Head of Data & Engineering on overall architecture and long-term direction. We’re looking for a hands-on, Python-first engineer who enjoys operating at both strategic and implementation levels: writing production code, setting standards, making technical decisions, and creating an environment where other … Apollo platform. Responsible for leading the design and development of our core applications and internal tools, including multiple production UIs built using Python-centric stacks (e.g. FastAPI, Jinja, HTMX, Tailwind). Responsible for making and guiding implementation decisions across backend services, APIs and application architecture. Contribute directly to production code ...