326 to 350 of 2,205 SQL Jobs in London

shape what gets covered and how.Proven analytics experience, ideally in media, B2B SaaS or fintech, owning analysis end-to-end and driving real decisions.Expert SQL for complex analysis, optimisation and reusable datasets.dbt & a cloud data warehouse (BigQuery, Snowflake or similar) — commercial experience building production models, tests and docs.Modern BI with ...

operating reliable pipelines, integrations, data models or platforms that serve real users and business-critical decisions. Strong programming fundamentals in Python, TypeScript and SQL at expert working level, covering testing, performance and maintainability, with the judgement to review others' code and hold a high-quality bar. Confidence building robust REST ...

Proven experience in Node.js development Strong knowledge of JavaScript (ES6+), asynchronous programming, and event-driven architecture.Experience with building and maintaining RESTful APIs.Solid understanding of SQL and NoSQL databases (e.g., MongoDB, PostgreSQL, MySQL).Familiarity with authentication and authorisation mechanisms (OAuth, JWT, etc.).Experience with version control systems like Git and GitHub ...

development experience delivering enterprise applications.Strong expertise in Appian Process Models, SAIL, Records/Data Fabric, Security, Reports, Rules, and Integrations.Experience with REST APIs, SQL, relational databases, and Agile development methodologies.Strong analytical, problem-solving, and communication skills.Appian Certified Senior Developer (or higher) preferred.Experience building workflow, case management, or process automation solutions.Experience ...

modern SDLC, TDD and code review.Data: Working with relational, columnar and vector stores, grounded in sound data-modelling principles.Languages: Python, Java, TypeScript/JavaScript, SQL and relevant AI SDKs.Communication: Clear written and verbal communication with technical peers and stakeholders.Measurement: Instrumenting solutions to capture usage, productivity and quality metrics against established ...

practice and knowledge sharing.• Partner with the Head of Analytics Engineering to shape the technical roadmap and future engineering capability.Key Technology Areas:Snowflake • DBT • SQL • Python • Git/CI/CD • Semantic Layers • Data Contracts • Data Quality & Observability • Snowflake Cortex • LLMs & AI Agents • AWSSkills & Experience:Must Have• Strong hands ...

optimise existing actuarial models and data workflows, ensuring outputs remain accurate, reliable and fit for purposeDevelop scalable analytical solutions using R, Python and SQL to improve data accessibility, modelling capability and operational efficiencyWork collaboratively with Actuarial, Data Science, Business Intelligence and Data Engineering teams to deliver high-quality data products ...

test code and promote maintainable engineering practices.Solid understanding of CI/CD pipelines, version control (Git), test-environment management and quality gates.Working knowledge of SQL and database testing, plus web, mobile and API testing.Leadership and CommunicationStrong analytical, problem-solving and decision-making skills, including the ability to communicate risk ...

from persistent storage through to clients.Strong Python experience, including modern web frameworks (we use FastAPI with Pydantic and strong typing).Deep working knowledge of SQL and relational data modelling.Excellent collaboration and communication, including the ability to explain complex systems and tradeoffs to non technical stakeholders.A strong product and customer mindset ...

change your mind as readily as you defend a position.Previous professional experience:Data transformations using dbt, including patterns for large, complex projectsData storage (SQL/NoSQL): schema design, modelling at scale, and multi-tenant isolationBack-end engineering: Python (nice to have: Typescript/Node.JS)Pipelines: streaming, CDC, correctness, replayability ...

problem, extracting defined spec, and prioritises shipping validated outcomes over perfect solutions, moving pilots to production at pace.Languages: Python, Java, TypeScript/JavaScript, SQL and relevant AI SDKs.Leadership and delivery management: Plans and sequences work, manages scope, dependencies and priorities, removes blockers, and drives delivery to keep innovation moving.Communication ...

platform with 100% infrastructure as codePackage applications in containers and deploy on Azure Kubernetes ServiceData Modelling: Use entity framework code first data with Azure SQL or a NoSQL DatabasesEnterprise Expertise: Build resilient Microservice integrated via a Cloud message busSecurity Practices: Comply with secure coding & infrastructure standards and policiesContinuous Delivery: Assist ...

effectiveness.· Bachelor’s or master’s degree in Statistics, Econometrics, Data Science, Economics, Applied Mathematics, Marketing Analytics, or related field.· Proficient in Python, R, SQL, Excel, and visualisation tools; experience with Databricks, Azure, or other cloud/data platforms is a plus.· Strong understanding of econometrics, regression, Bayesian statistics ...

/CD pipeline ownership, model versioning, automated testing and live system monitoring - not as adjacent knowledge but as daily practice.Strong proficiency in Python and SQL; solid REST and event-driven API integration experience including enterprise systems such as SAP (via SAP Joule) or Salesforce.Hands-on experience with Azure AI Foundry ...

combination of the following, with particular emphasis on strong technical capabilities: Technical Capabilities Strong data manipulation and analysis skills. Programming using Python and SQL (additional languages are a benefit). Dashboarding using Tableau and/or Power BI and data visualisation using common data science packages (Matplotlib, Seaborn, kepler.gl, etc. ...

Argus, and related market data services.Experience integrating data through REST APIs, FIX, WebSockets, SFTP, streaming technologies, and vendor SDKs.Strong programming capabilities in Python, C#, SQL, and modern integration technologies.Practical experience with Azure, Databricks, Snowflake, and cloud-native data platforms.Experience working with Kafka, Solace, RMDS/TREP, and real-time messaging ...

Tech: C#, ASP.Net MVC, Angular 5, MVC, MVC, SQL, AWS, Fullstack Challenge: Develop Greenfield systems and increase functionality for existing high transaction/high traffic platforms. Pay: 60k, Share Options Firm: Global Software firm in the business intelligence and Performance space. Location: SloughC# ASP.NET FullStack Developer – Get .NET CoreQuant Capital … Develop complex queries and algorithms for condensing and reporting on large datasets with minimum response times, for a variety of data sources including Microsoft SQL Server, Oracle, PostgreSQL and Excel, and new Big Data sources • Take an active part in coming up with new ideas and discussing specifications with senior ...

controls, 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 … cloud-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 ...

stability and scalability as TradingHub continues to grow Requirements Proficiency with C#, Python or Java Strong experience of working within financial markets Proficiency with SQL-related technologies Knowledge of AWS or other cloud native technologies Evidence of exceptional analytical and problem-solving skills High attention to detail and keen ...

transactions or consulting Advanced Excel and financial modelling skills, with a track record of building complex, bespoke models Exposure to Power BI, Power Query, SQL, VBA or Python advantageous, though not essential Strong numerical and analytical skills, with the ability to structure and solve ambiguous modelling challenges Excellent written ...

design methodologies - Inmon, Kimball, and Data Vault 2.0 - with the judgement to apply the right pattern for the right use case. Technical Skills: Expert SQL and Python; hands-on experience with dbt (data build tool) or equivalent transformation frameworks. AWS Integration : Solid understanding of AWS IAM, S3 data lake patterns ...

design methodologies - Inmon, Kimball, and Data Vault 2.0 - with the judgement to apply the right pattern for the right use case. Technical Skills: Expert SQL and Python; hands-on experience with dbt (data build tool) or equivalent transformation frameworks. AWS Integration : Solid understanding of AWS IAM, S3 data lake patterns ...

this skill further when working with non-technical audiences. Experience using at least one data-focused programming or analytical language, such as Python, R, SQL, PySpark or similar. Role is placed within the Advanced Analytics function, supporting the strategic Insights Engine programme. The project aims to move retail colleagues away ...

such as Airflow).Stream/Message Queues: Solid understanding of event-driven architectures and streaming processing via Apache Kafka.Strong Programming Foundations: Proficiency in Python, SQL, or an Object-Oriented language (Java/Scala).Nice to HavesExperience operating data assets within a regulated SOX/PCAOB compliance environment.Familiarity with cloud data ...

advocate for using the right tech for the right task, we often leverage the following technologies: Python, TypeScript/JavaScript, React, Node, Flask, SQL, cloud infra, CI/CD).Exceptional time management to meet your responsibilities in a complex and largely autonomous work environment.Strong communication skills, both verbal and written ...