76 to 100 of 139 Data Cleansing Jobs in London

We are looking for Data Engineers suitable for a group of world-class investment and trading firms that are actively expanding their data engineering functions. Each environment is highly technical, research-driven, and deeply data-centric — offering the opportunity to work on systems and pipelines that directly influence investment decisions. These … positions sit within core data teams, responsible for building and maintaining the infrastructure that underpins everything from quantitative research to real-time trading and analytics. You’ll work closely with developers, data scientists, and researchers to ensure clean, accurate, and reliable data is available across the business. This is a fantastic … years’ experience) who want to accelerate their development in an environment that values intellectual curiosity, technical depth, and end-to-end ownership. The Role Design, build, and optimise data pipelines and ETL processes that feed critical research and trading systems. Engineer scalable, automated solutions for data ingestion, cleaning, and validation across multiple structured and More ❯

We are looking for Data Engineers suitable for a group of world-class investment and trading firms that are actively expanding their data engineering functions. Each environment is highly technical, research-driven, and deeply data-centric — offering the opportunity to work on systems and pipelines that directly influence investment decisions. These … positions sit within core data teams, responsible for building and maintaining the infrastructure that underpins everything from quantitative research to real-time trading and analytics. You’ll work closely with developers, data scientists, and researchers to ensure clean, accurate, and reliable data is available across the business. This is a fantastic … years’ experience) who want to accelerate their development in an environment that values intellectual curiosity, technical depth, and end-to-end ownership. The Role Design, build, and optimise data pipelines and ETL processes that feed critical research and trading systems. Engineer scalable, automated solutions for data ingestion, cleaning, and validation across multiple structured and More ❯

We are looking for Data Engineers suitable for a group of world-class investment and trading firms that are actively expanding their data engineering functions. Each environment is highly technical, research-driven, and deeply data-centric — offering the opportunity to work on systems and pipelines that directly influence investment decisions. These … positions sit within core data teams, responsible for building and maintaining the infrastructure that underpins everything from quantitative research to real-time trading and analytics. You’ll work closely with developers, data scientists, and researchers to ensure clean, accurate, and reliable data is available across the business. This is a fantastic … years’ experience) who want to accelerate their development in an environment that values intellectual curiosity, technical depth, and end-to-end ownership. The Role Design, build, and optimise data pipelines and ETL processes that feed critical research and trading systems. Engineer scalable, automated solutions for data ingestion, cleaning, and validation across multiple structured and More ❯

We are looking for Data Engineers suitable for a group of world-class investment and trading firms that are actively expanding their data engineering functions. Each environment is highly technical, research-driven, and deeply data-centric — offering the opportunity to work on systems and pipelines that directly influence investment decisions. These … positions sit within core data teams, responsible for building and maintaining the infrastructure that underpins everything from quantitative research to real-time trading and analytics. You’ll work closely with developers, data scientists, and researchers to ensure clean, accurate, and reliable data is available across the business. This is a fantastic … years’ experience) who want to accelerate their development in an environment that values intellectual curiosity, technical depth, and end-to-end ownership. The Role Design, build, and optimise data pipelines and ETL processes that feed critical research and trading systems. Engineer scalable, automated solutions for data ingestion, cleaning, and validation across multiple structured and More ❯

HubSpot Data Specialist Contract: 3-4 months | Day Rate: £350-£300 per day Outside IR35 | Remote (UK-based) Overview We're partnering with a fast-growing business in the [events/SaaS] space to find an experienced CRM & Data Consultant who can take ownership of a HubSpot data project from start … ideal for someone who's analytical, highly autonomous, and confident navigating complex datasets within HubSpot. The Opportunity The business has already made an initial start on a CRM data audit with the help of a previous contractor, but the data remains inconsistent and requires a complete review and rebuild. You'll play a pivotal … clear communication while working remotely and autonomously. About You Expert-level HubSpot experience - able to work independently with minimal direction. Proven track record managing data audits, cleansing, and enrichment projects. Experience working on large-scale event projects or within a SaaS environment is highly desirable. Strong analytical and problem-solving mindset. Excellent communication and stakeholder management More ❯

Work Location: London (Office Based) The Role The role will be integral to realizing the customer's vision and strategy in transforming some of their critical application and data engineering components. As a global financial markets infrastructure and data provider , the customer leverages cutting-edge technologies to support its core services and business requirements. … This role is critical in enabling the technical thought leadership and excellence required for that purpose. Your Responsibilities Design, build, and optimise scalable data pipelines for batch and streaming workloads. Develop … and manage dataflows and semantic models to support analytics-related business requirements. Implement complex transformations, aggregations, and joins ensuring performance and reliability. Apply robust data validations, cleansing, and profiling techniques to ensure data accuracy and consistency. Implement role-based access, data masking, and compliance protocols. Performance tune and optimise jobs More ❯

Data Analyst – Contract (6 months) | Hybrid/Remote | £350–£450/day Are you a data analyst who thrives on complex challenges and wants to make a real impact in the finance tech infrastructure space? We’re working with a leading organisation that’s investing heavily in data-driven decision-making … reports in Tableau, ensuring clarity and actionable insights for senior stakeholders. Work closely with both technical and non-technical teams to gather requirements and translate them into compelling data stories. Cleanse, profile, and model data using SQL, DBT, and Snowflake. Contribute to projects involving cloud data infrastructure (AWS preferred, especially S3 … experience with other platforms also valued). Support the evolution of data processes - potential to get involved in broader SQL, DBT, and AWS financial data projects. What we’re looking for: Proven expertise in Tableau (development and design), with a strong portfolio or Tableau Public profile. Advanced SQL skills; hands-on experience with Snowflake More ❯

Data Analyst – Contract (6 months) | Hybrid/Remote | £350–£450/day Are you a data analyst who thrives on complex challenges and wants to make a real impact in the finance tech infrastructure space? We’re working with a leading organisation that’s investing heavily in data-driven decision-making … reports in Tableau, ensuring clarity and actionable insights for senior stakeholders. Work closely with both technical and non-technical teams to gather requirements and translate them into compelling data stories. Cleanse, profile, and model data using SQL, DBT, and Snowflake. Contribute to projects involving cloud data infrastructure (AWS preferred, especially S3 … experience with other platforms also valued). Support the evolution of data processes - potential to get involved in broader SQL, DBT, and AWS financial data projects. What we’re looking for: Proven expertise in Tableau (development and design), with a strong portfolio or Tableau Public profile. Advanced SQL skills; hands-on experience with Snowflake More ❯

Data Analyst – Contract (6 months) | Hybrid/Remote | £350–£450/day Are you a data analyst who thrives on complex challenges and wants to make a real impact in the finance tech infrastructure space? We’re working with a leading organisation that’s investing heavily in data-driven decision-making … reports in Tableau, ensuring clarity and actionable insights for senior stakeholders. Work closely with both technical and non-technical teams to gather requirements and translate them into compelling data stories. Cleanse, profile, and model data using SQL, DBT, and Snowflake. Contribute to projects involving cloud data infrastructure (AWS preferred, especially S3 … experience with other platforms also valued). Support the evolution of data processes - potential to get involved in broader SQL, DBT, and AWS financial data projects. What we’re looking for: Proven expertise in Tableau (development and design), with a strong portfolio or Tableau Public profile. Advanced SQL skills; hands-on experience with Snowflake More ❯

Data Analyst – Contract (6 months) | Hybrid/Remote | £350–£450/day Are you a data analyst who thrives on complex challenges and wants to make a real impact in the finance tech infrastructure space? We’re working with a leading organisation that’s investing heavily in data-driven decision-making … reports in Tableau, ensuring clarity and actionable insights for senior stakeholders. Work closely with both technical and non-technical teams to gather requirements and translate them into compelling data stories. Cleanse, profile, and model data using SQL, DBT, and Snowflake. Contribute to projects involving cloud data infrastructure (AWS preferred, especially S3 … experience with other platforms also valued). Support the evolution of data processes - potential to get involved in broader SQL, DBT, and AWS financial data projects. What we’re looking for: Proven expertise in Tableau (development and design), with a strong portfolio or Tableau Public profile. Advanced SQL skills; hands-on experience with Snowflake More ❯

and technical requirements, transforming them into actionable deliverables. Develop and maintain the benefits realisation profile, ensuring traceability of business value and ownership. Provide expertise on Mainframe LAM processes, data, and roles. Define clear and testable acceptance criteria to validate delivery outcomes. Analyse the Target Operating Model (TOM) and migration strategy to refine scope, identify changes, and support … to support business and technical decision-making. Work closely with Business and IT stakeholders to elicit, validate, and document functional and non-functional requirements. Define the approach for data analysis, migration, and data cleansing. Model and optimise business processes using BPMN tools (e.g. Adonis, Visio). Support solution design, integration, and migration strategies to … standards (e.g. SAML, OAuth). Hands-on experience onboarding applications into IAM platforms and implementing process improvements. Strong analytical and problem-solving skills with the ability to interpret data and drive informed decisions. Excellent communication and stakeholder management skills - comfortable engaging with both technical teams and senior stakeholders. Skilled in business process modelling and documentation (BPMN). More ❯

Job Title: Marketing Data Analyst Location: London (Hybrid - 2-3 days/week in office) Salary: £35,000 A well-established professional services firm is seeking a Marketing Data Analyst to support its growing analytics and insights team. This is an ideal role for someone with a keen eye for data … to build a strong foundation in analytics within a collaborative, commercially focused environment. The Role: You'll work alongside experienced analysts and business stakeholders, helping to transform raw data into clear, actionable insights. From data preparation and cleaning to supporting dashboards and regular reporting, you'll play a key part in driving smarter decision … making across the business. What You'll Be Doing: Preparing, validating and analysing data from multiple internal systems Assisting with the creation and maintenance of dashboards and regular reports Supporting ad-hoc analysis and insight requests from across the business Working closely with the senior analytics team to continuously improve data processes What We More ❯

Our client, a leading organisation in the data and insights sector, is seeking a Junior Data Analyst to join their growing team. This is an exciting opportunity for individuals who are passionate about data and eager to start or develop a career in analytics. In this role, you will support data … business areas, helping to produce actionable insights that drive strategic decisions. Working closely with senior analysts and managers, you’ll gain valuable hands-on experience with real-world data and develop your technical and analytical skills in a collaborative, fast-paced environment. Key Responsibilities: Collect, clean, and manage data from multiple sources to ensure … and completeness. Prepare and maintain reports, dashboards, and visualisations for business stakeholders. Identify trends, patterns, and insights to support business decision-making. Collaborate with senior analysts to deliver data-driven solutions and recommendations. Maintain high standards of data integrity and ensure consistent reporting practices. Requirements: Strong numerical and analytical skills with an eye for More ❯

designs. Manage integrations between Salesforce and third-party applications using APIs, REST, and SOAP. Maintain data integrity through automation, validation rules, and data cleansing initiatives. Support Salesforce configuration activities, including Flows, Process Builder, and Reports/Dashboards. Provide technical documentation, testing, and deployment support across the full development lifecycle. Stay updated with Salesforce … Sales Cloud and Service Cloud and Financial Services Cloud Hands-on experience with Apex Classes, Triggers, Lightning Components (LWC), and Visualforce. Solid knowledge of Salesforce integrations, APIs, and data management practices. Experience with version control (e.g. GitHub) and Agile project methodologies. Salesforce Platform Developer I certification (Platform Developer II desirable). Excellent problem-solving skills and a More ❯

designs. Manage integrations between Salesforce and third-party applications using APIs, REST, and SOAP. Maintain data integrity through automation, validation rules, and data cleansing initiatives. Support Salesforce configuration activities, including Flows, Process Builder, and Reports/Dashboards. Provide technical documentation, testing, and deployment support across the full development lifecycle. Stay updated with Salesforce … Sales Cloud and Service Cloud and Financial Services Cloud Hands-on experience with Apex Classes, Triggers, Lightning Components (LWC), and Visualforce. Solid knowledge of Salesforce integrations, APIs, and data management practices. Experience with version control (e.g. GitHub) and Agile project methodologies. Salesforce Platform Developer I certification (Platform Developer II desirable). Excellent problem-solving skills and a More ❯

designs. Manage integrations between Salesforce and third-party applications using APIs, REST, and SOAP. Maintain data integrity through automation, validation rules, and data cleansing initiatives. Support Salesforce configuration activities, including Flows, Process Builder, and Reports/Dashboards. Provide technical documentation, testing, and deployment support across the full development lifecycle. Stay updated with Salesforce … Sales Cloud and Service Cloud and Financial Services Cloud Hands-on experience with Apex Classes, Triggers, Lightning Components (LWC), and Visualforce. Solid knowledge of Salesforce integrations, APIs, and data management practices. Experience with version control (e.g. GitHub) and Agile project methodologies. Salesforce Platform Developer I certification (Platform Developer II desirable). Excellent problem-solving skills and a More ❯

across tracks What You Bring Essential Skills & Experience Exceptional organization skills and attention to detail Strong communication and stakeholder management skills Proficiency in Microsoft Excel (formulas, pivot tables, data cleaning/analysis) Experience in time management and prioritization in an agile environment Demonstrated ability to solve problems and manage risks and issues effectively A collaborative, proactive, and More ❯

Dynamics AX 2012 database Monitor performance, risks, and run optimisation queries Manage and execute backup and restore procedures Oversee database security and access control Lead data cleansing and archiving efforts in preparation for migration Support reporting activities using SSRS Maintain and update database schema documentation Prepare and manage test environments as needed Collaborate with the wider More ❯

Dynamics AX 2012 database Monitor performance, risks, and run optimisation queries Manage and execute backup and restore procedures Oversee database security and access control Lead data cleansing and archiving efforts in preparation for migration Support reporting activities using SSRS Maintain and update database schema documentation Prepare and manage test environments as needed Collaborate with the wider More ❯

Dynamics AX 2012 database Monitor performance, risks, and run optimisation queries Manage and execute backup and restore procedures Oversee database security and access control Lead data cleansing and archiving efforts in preparation for migration Support reporting activities using SSRS Maintain and update database schema documentation Prepare and manage test environments as needed Collaborate with the wider More ❯

Dynamics AX 2012 database Monitor performance, risks, and run optimisation queries Manage and execute backup and restore procedures Oversee database security and access control Lead data cleansing and archiving efforts in preparation for migration Support reporting activities using SSRS Maintain and update database schema documentation Prepare and manage test environments as needed Collaborate with the wider More ❯

you will do 🚀 Build fundamental models for education - solving the ultimate learning task of predicting student knowledge and optimal ‘next task’ Work with a vast amount of unique data - we have data from over 1M language tests, including text and voice data Create brand new dictionaries, applicable to any context - right … now it’s the English language, but in the future it could be other languages or even subjects such as Mathematics Analyse large amounts of diverse data - including data from every movie, book, and song Work in a cross-functional team and communicate with backend engineers and product managers Create new types of tests … meet-up in London, building a network of ML specialists Essential skills 🙏 Experience leading and mentoring other ML engineers Complete end-to-end experience - from finding and cleaning data all the way to monitoring models in production Experience taking complete ownership of entire ML systems and data pipelines in large-scale production systems Experience More ❯

you will do 🚀 Build fundamental models for education - solving the ultimate learning task of predicting student knowledge and optimal ‘next task’ Work with a vast amount of unique data - we have data from over 1M language tests, including text and voice data Create brand new dictionaries, applicable to any context - right … now it’s the English language, but in the future it could be other languages or even subjects such as Mathematics Analyse large amounts of diverse data - including data from every movie, book, and song Work in a cross-functional team and communicate with backend engineers and product managers Create new types of tests … meet-up in London, building a network of ML specialists Essential skills 🙏 Experience leading and mentoring other ML engineers Complete end-to-end experience - from finding and cleaning data all the way to monitoring models in production Experience taking complete ownership of entire ML systems and data pipelines in large-scale production systems Experience More ❯

you will do 🚀 Build fundamental models for education - solving the ultimate learning task of predicting student knowledge and optimal ‘next task’ Work with a vast amount of unique data - we have data from over 1M language tests, including text and voice data Create brand new dictionaries, applicable to any context - right … now it’s the English language, but in the future it could be other languages or even subjects such as Mathematics Analyse large amounts of diverse data - including data from every movie, book, and song Work in a cross-functional team and communicate with backend engineers and product managers Create new types of tests … meet-up in London, building a network of ML specialists Essential skills 🙏 Experience leading and mentoring other ML engineers Complete end-to-end experience - from finding and cleaning data all the way to monitoring models in production Experience taking complete ownership of entire ML systems and data pipelines in large-scale production systems Experience More ❯

you will do 🚀 Build fundamental models for education - solving the ultimate learning task of predicting student knowledge and optimal ‘next task’ Work with a vast amount of unique data - we have data from over 1M language tests, including text and voice data Create brand new dictionaries, applicable to any context - right … now it’s the English language, but in the future it could be other languages or even subjects such as Mathematics Analyse large amounts of diverse data - including data from every movie, book, and song Work in a cross-functional team and communicate with backend engineers and product managers Create new types of tests … meet-up in London, building a network of ML specialists Essential skills 🙏 Experience leading and mentoring other ML engineers Complete end-to-end experience - from finding and cleaning data all the way to monitoring models in production Experience taking complete ownership of entire ML systems and data pipelines in large-scale production systems Experience More ❯