Data Cleansing Jobs in London

26 to 50 of 163 Data Cleansing Jobs in London

Data Analyst

London Area, United Kingdom
Harrington Starr
Data Analyst x2 | City of London | Leading Brokerage | £80,000-£100,000 basic + Bonus Our client is a leading Brokerage who are looking to enhance their Data team with the addition of a 2 Data Analysts in London to join to help maximise the capabilities of their established business units. … You will work closely with a high performing group of data engineers and architects. This role will suit candidates with strong stakeholder management skills or consulting backgrounds who can help bridge the gap between the business and technology departments. For this department it will be a hybrid set up, requiring 3 days a week in the London … are we looking for? Advanced proficiency in SQL (T-SQL, PL/SQL, Databricks SQL) Experience using scripting languages such as Python, PowerShell etc. Data Modelling, cleansing and enrichment. Experience with Microsoft Azure. Strong knowledge of ETL/ELT tools and experience navigating data pipelines. Creating BI models and dashboards, ideally in Power More ❯
Posted:

Senior Data Engineer - Snowflake

London, England, United Kingdom
Hybrid / WFH Options
iO Associates - UK/EU
Title: Senior Data Engineer Salary: Up to £100,000 D.O.E Location: London (Hybrid 3 Days on site) Are you a Data Engineer ready to make a real impact in a company that values innovation, autonomy, and excellence? iO Associates is recruiting for a high-growth, forward-thinking investment firm that sits at the intersection … of finance and technology - and they're looking for a Data Engineering Specialist to join their collaborative data team. This is a unique chance to step into a role that offers both technical ownership and strategic influence, within a business that's genuinely committed to doing things differently. Our client is known for backing … and resolve data quality issues, supporting business users with self-service access. Develop Python-based automation tools and scalable pipelines. Conduct data validation, cleansing, and rigorous testing to maintain data integrity. Mentor junior engineers and champion best practices in data management and engineering. Investigate and resolve challenges More ❯
Posted:

Senior Data Engineer - Snowflake

South East London, England, United Kingdom
Hybrid / WFH Options
iO Associates - UK/EU
Title: Senior Data Engineer Salary: Up to £100,000 D.O.E Location: London (Hybrid 3 Days on site) Are you a Data Engineer ready to make a real impact in a company that values innovation, autonomy, and excellence? iO Associates is recruiting for a high-growth, forward-thinking investment firm that sits at the intersection … of finance and technology - and they're looking for a Data Engineering Specialist to join their collaborative data team. This is a unique chance to step into a role that offers both technical ownership and strategic influence, within a business that's genuinely committed to doing things differently. Our client is known for backing … and resolve data quality issues, supporting business users with self-service access. Develop Python-based automation tools and scalable pipelines. Conduct data validation, cleansing, and rigorous testing to maintain data integrity. Mentor junior engineers and champion best practices in data management and engineering. Investigate and resolve challenges More ❯
Posted:

Finance Data Analyst

City Of London, England, United Kingdom
Hybrid / WFH Options
Cedar
Finance Data Analyst (6-month FTC) Salary: £60,000 - £80,000 (dependent on experience) Location: London (hybrid - 3 days in the office per week) Start date: ASAP (the hiring manager is only looking to interview candidates who have a maximum of 1-weeks notice) Our client, a leading retail company, is seeking a commercially astute and delivery … high-value outcomes. Key Responsibilities Support delivery of new finance systems, tools, and processes, including purchase ordering and supplier income management. Own end-to-end data cleansing activities to ensure seamless transitions. Partner with project managers, IT teams, and third-party vendors to ensure solutions are fit-for-purpose. Lead/support system testing, data … deliver under pressure. Excellent communication and stakeholder management skills, across finance and non-finance teams. Comfortable working in ambiguous, fast-changing environments with competing priorities. Experience with testing, data migration, or finance system implementation is highly beneficial. If you're looking to join a forward-thinking retailer and play a key role in driving meaningful change in More ❯
Posted:

Moody's Insurance Solutions Graduate Program 2025-Data Science

London, United Kingdom
Moody's Investors Service
risk. As part of the Moody's Insurance Solutions Graduate Program, you'll work with the people, teams, and companies leading the way in the use of models, data, analytics, and technology to derive relevant insights across the insurance lifecycle. Our insurance customers use our models, data, analytics, and technology to assess catastrophe, climate … part of this mission you are crucial to our future, and we are committed to supporting yours as well. Skills and Competencies: Applied experience collecting, processing, and using data to solve a problem or answer a question. Working knowledge of a computer programming language (examples include SQL, R/tidyverse, Python, Microsoft Excel, Julia, and Fortran) with … utilized across teams and organizations within Moody's Insurance Solutions. The ideal candidate for this position is interested in a broad range of work spanning data cleansing, data analysis/data analytics, programming, tool development, data pipelines, gaining an in-depth knowledge of catastrophe modeling and the More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Data Quality Assurance Engineer

London, United Kingdom
Hybrid / WFH Options
IAG Loyalty
global customers. We're on a truly exciting journey of growth and transformation - we're going places! This is where you come in. The opportunity As a Senior Data Quality Assurance Engineer, you'll play a vital role in ensuring the accuracy, integrity, and reliability of data within our organisation. You'll be responsible … for developing and implementing data quality standards, processes, and best practices to maintain high data quality throughout the data lifecycle. Your expertise in data validation, testing methodologies, and quality assurance techniques will contribute to the successful delivery of data-driven initiatives and enable us to … you'll get up to In this role, you will be responsible for designing and executing comprehensive data validation strategies, including data profiling, cleansing, and transformation, to identify and rectify data quality issues. You'll conduct data quality assessments and audits to ensure adherence to standards and More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Data Migration Consultant - Syniti

London, United Kingdom
Hybrid / WFH Options
Capgemini
Press Tab to Move to Skip to Content Link Select how often (in days) to receive an alert: The Job You're Considering The Enterprise Data Management practice within the Insights and Data business unit of Capgemini; a global practice involved in Enterprise Data Management, Cloud Platforms, Enterprise Content Management and … AI & Analytics. The Enterprise Data Management provides services on Information Strategy, Data Governance, Master Data Management, Data Architecture, Data Migration and Lifecycle Management. We help our clients build an enterprise-class data platform that allows them to move ahead in their journey … including migrating data to SAP S/4HANA and/or ECC systems from SAP and non-SAP source systems. • Data Profiling and Cleansing: Expertise in leading and implementing solutions for data profiling, data cleansing, and data enrichment within an SAP context. Your More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Data Engineer

London, United Kingdom
Hybrid / WFH Options
iO Associates
Title: Senior Data Engineer Salary: Up to £100,000 D.O.E Location: London (Hybrid 3 Days on site) Are you a data engineer ready to make a real impact in a company that values innovation, autonomy, and excellence? iO Associates is recruiting for a high-growth, forward-thinking investment firm that sits at the intersection … of finance and technology - and they're looking for a Data Engineering Specialist to join their collaborative data team. This is a unique chance to step into a role that offers both technical ownership and strategic influence, within a business that's genuinely committed to doing things differently. Our client is known for backing … and resolve data quality issues, supporting business users with self-service access. Develop Python-based automation tools and scalable pipelines. Conduct data validation, cleansing, and rigorous testing to maintain data integrity. Mentor junior engineers and champion best practices in data management and engineering. Investigate and resolve challenges More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Data Engineering Associate

London, UK
Metyis
Metyis is growing! We are looking for a Data Engineering Associate with 3-4 years of experience to join our Data and Analytics team in London. Who we are Metyis is a global and forward-thinking firm operating across a wide range of industries, developing and delivering Big Data, Digital Commerce … We are Metyis. Partners for Impact. What we offer Interact with senior stakeholders at our clients on regular basis to drive their business towards impactful change. Working with Data Scientists to take data throughout its lifecycle - acquisition, exploration, data cleaning, integration, analysis, interpretation, and visualization. Become part of a fast-growing … business challenges in a range of domains. Collect functional and non-functional requirements, consider technical environments, business constraints, and enterprise organizations. Support our clients in executing their Big Data strategies by designing and building operational data platforms: ETL pipelines, data anonymization pipelines, data lakes, near real-time streaming More ❯
Posted:

Senior Marketing Data Analyst

London, United Kingdom
Hybrid / WFH Options
Funding Circle UK
Senior Marketing Data Analyst We are looking for a Senior Marketing Data Analyst in our Data team. As a Senior Marketing Data Analyst, you will be expected to develop in depth knowledge of Funding Circle's Marketing activities and products. You will be an expert in marketing analytics … and, in addition to performing analytical work you will support analytical initiatives and the development of a data driven maturity within Funding Circle. Who are we? We're Funding Circle. We back small businesses to succeed. At Funding Circle, we believe the world needs small businesses. That's why we've made it our mission to help … the finance they need to grow. With more than a decade of expertise under our belt, we've built a game-changer of a platform with cutting-edge data and technology that's reshaping the landscape of SME lending. Say goodbye to lengthy applications and hello to lightning-fast decisions! In just minutes, SMEs across the UK More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Lead Product Analyst

City of London, London, United Kingdom
Harnham
include: Leading the design, implementation, and analysis of A/B tests to assess product performance and enhance customer experiences Using SQL to extract, analyse, and visualise product data, delivering actionable insights that support decision-making Collaborating closely with Product, Engineering, and Marketing teams to define KPIs and success metrics Building and maintaining dashboards and reporting tools … product analytics role, with deep expertise in A/B testing and experimentation Advanced SQL skills and a strong ability to query and manipulate complex datasets Familiarity with data visualisation tools such as Tableau or Power BI Proven experience working with large datasets, including data cleaning and validation Excellent communication skills, with the ability More ❯
Posted:

Lead Product Analyst

London Area, United Kingdom
Harnham
include: Leading the design, implementation, and analysis of A/B tests to assess product performance and enhance customer experiences Using SQL to extract, analyse, and visualise product data, delivering actionable insights that support decision-making Collaborating closely with Product, Engineering, and Marketing teams to define KPIs and success metrics Building and maintaining dashboards and reporting tools … product analytics role, with deep expertise in A/B testing and experimentation Advanced SQL skills and a strong ability to query and manipulate complex datasets Familiarity with data visualisation tools such as Tableau or Power BI Proven experience working with large datasets, including data cleaning and validation Excellent communication skills, with the ability More ❯
Posted:

Lead Product Analyst

South East London, England, United Kingdom
Harnham
include: Leading the design, implementation, and analysis of A/B tests to assess product performance and enhance customer experiences Using SQL to extract, analyse, and visualise product data, delivering actionable insights that support decision-making Collaborating closely with Product, Engineering, and Marketing teams to define KPIs and success metrics Building and maintaining dashboards and reporting tools … product analytics role, with deep expertise in A/B testing and experimentation Advanced SQL skills and a strong ability to query and manipulate complex datasets Familiarity with data visualisation tools such as Tableau or Power BI Proven experience working with large datasets, including data cleaning and validation Excellent communication skills, with the ability More ❯
Posted:

CRM Support Exec

London, United Kingdom
Hybrid / WFH Options
Nigel Frank International
environments, including sandbox and production instances. Customize entities, forms, views, dashboards, workflows, business process flows, and security roles. Implement updates, patches, and upgrades while ensuring system stability and data integrity. User Management and Support: Manage user accounts, licenses, roles, and permissions to maintain security and compliance. Provide day-to-day support to end users, troubleshoot issues, and … Management: Oversee integrations with other enterprise systems (ERP, marketing automation, BI tools, etc.). Manage data import/export processes, data cleansing Ensure data security, compliance, and governance policies are enforced. Customisation and Development Liaison: Work with developers to manage custom plugins, workflows, and API integrations. Review and … system health reports and usage metrics to leadership. Continuously assess and optimise system configurations to improve user experience and business outcomes. Governance and Compliance: Enforce organisational policies on data privacy, security, and regulatory compliance within the D365 environment. Manage audit logs, security settings, and user activity monitoring. Participate in internal and external audits related to CRM systems. More ❯
Employment Type: Permanent
Salary: £35000 - £40000/annum Additional Benefits
Posted:

Python Developer

London, England, United Kingdom
VE3
with 2–3 years of experience to contribute to scalable, innovative software solutions. You’ll collaborate with cross-functional teams to design, build, and maintain applications that power data-driven decision-making and automation. Key Responsibilities Develop and optimize data processing pipelines for large-scale datasets. Design, implement, and maintain scalable applications using Python. … Collaborate with data scientists to integrate ML models into production systems. Build and deploy RESTful APIs and microservices to support frontend and data services. Perform data wrangling, cleaning, and transformation for analytics and reporting. Write clean, modular, and high-performance code with strong documentation. Ensure application security, performance, and scalability across … services. Stay up-to-date with the latest technologies in data engineering and Python development. Requirements Technical Skills 2–3 years of hands-on experience as a Python Developer. Strong proficiency in Python 3.x and frameworks such as Flask , FastAPI , or Django . Solid experience with data libraries like Pandas , NumPy , and Dask . More ❯
Posted:

Python Developer

South East London, England, United Kingdom
VE3
with 2–3 years of experience to contribute to scalable, innovative software solutions. You’ll collaborate with cross-functional teams to design, build, and maintain applications that power data-driven decision-making and automation. Key Responsibilities Develop and optimize data processing pipelines for large-scale datasets. Design, implement, and maintain scalable applications using Python. … Collaborate with data scientists to integrate ML models into production systems. Build and deploy RESTful APIs and microservices to support frontend and data services. Perform data wrangling, cleaning, and transformation for analytics and reporting. Write clean, modular, and high-performance code with strong documentation. Ensure application security, performance, and scalability across … services. Stay up-to-date with the latest technologies in data engineering and Python development. Requirements Technical Skills 2–3 years of hands-on experience as a Python Developer. Strong proficiency in Python 3.x and frameworks such as Flask , FastAPI , or Django . Solid experience with data libraries like Pandas , NumPy , and Dask . More ❯
Posted:

Quantitative Analyst

London, United Kingdom
Green Street
Position Overview Green Street's Forecasting & Data Science team is a tight knit group of enthusiastic quants, actively seeking individuals who are eager to tackle diverse quantitative challenges. We are looking for candidates who possess a strong coding acumen, thrive in a collaborative environment, and can adeptly apply statistical concepts to solving real world challenges in the … commercial real estate (CRE) space. Job Responsibilities Perform quantitative analysis to develop, enhance and expand Green Street's capabilities in commercial real estate forecasting, data analytics and other technical projects related to CRE Ability to collaborate effectively across multiple departments, including Market Analytics, Product and Technology teams Proficiently handle large databases and analyze complex datasets to derive … attitude and self-starting approach, thriving in a fast-paced environment Candidate Profile A master's or PhD degree in a quantitative science discipline, such as Economics, Statistics, Data Science, Econometrics, Math, or Financial Engineering 2+ years of experience with Python and SQL for data analysis and manipulation Demonstrated experience in data More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Associate (Analytics Specialist) - London, Wroclaw

London, United Kingdom
LEK
Associate (Analytics Specialist) - London, Wroclaw Location London, Wroclaw Job Description Associate (Data Scientist) - London, Wroclaw About L.E.K. Consulting L.E.K. Consulting is a global strategy consulting firm that addresses the most critical commercial issues for the leaders of some of the world's most successful businesses. Clients come to us time and again because we are proven to … at crucial moments, changing the trajectory of their enterprise, delivering improved business performance and creating greater shareholder returns. Our teams combine our core capabilities of research, benchmarking, modelling, data & analytics and strategy development to create game-changing insights and practical solutions that seize competitive advantage and unlock new growth opportunities. We enable clients to make critical decisions … are reused across the entire firm, and upskilling colleagues in using advanced analytical software You will be a fully-fledged member of both the Consulting practice and the Data & Analytics (D&A) team , enjoying the rapid learning curve of the Associate path while deepening your specialist technical expertise. The Associate (Analytics Specialist) role at L.E.K. offers exposure More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Assc Analytics & Model Analyst

London, United Kingdom
Moody's Investors Service
Location(s): Minster Building, 21 Mincing Lane, 2nd Floor, London, EC3R 7AG, GB Line Of Business: Insurance(INSURANCE) Job Category: ESG Analytics, Data & Research Experience Level: Experienced Hire At Moody's, we unite the brightest minds to turn today's risks into tomorrow's opportunities. We do this by striving to create an inclusive environment where everyone … invest in every relationship, lead with curiosity, champion diverse perspectives, turn inputs into actions, and uphold trust through integrity. Skills and Competencies Applied experience collecting, processing, and using data to solve a problem or answer a question is required as successful candidates will be drawing upon this skillset in their daily work. Possess a working knowledge of … custom data infrastructure and using it to produce modelling output that effectively communicates key modelling stories. o Invest time in learning about data cleansing, data analysis/data analytics, programming, tool development, data pipelines, and other skills that will enhance your ability to contribute More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Lead Data Engineer

London, England, United Kingdom
Hybrid / WFH Options
Sarafin Partners
A dynamic and prestigious professional services company based in the heart of the City of London is seeking a talented Data Engineer to join their team in this newly created role. This multifaceted position offers an exceptional opportunity for an experienced professional to work broadly across the business, planning, developing and implementing data solutions. … The successful candidate must possess strong analytical skills, in-depth understanding of data engineering principles and the ability to translate business requirements into high quality data solutions The main focus of the role will include: Designs and develops data pipelines for the preparation, transformation and loading of data … stores. Implement data quality check, validation rules, and profiling techniques to maintain high data integrity. Work on data cleansing and normalisation to ensure data usability for business reporting and analysis purposes. Communicate technical concepts to non-technical team members ensuring alignment on project goals and More ❯
Posted:

Data Analyst

London, United Kingdom
Hybrid / WFH Options
Salt Digital Recruitment
New Job Alert - Senior Data Analyst - Local Government Transformation A UK local authority is undertaking a significant, multi-year transformation programme across core service areas including Adult Social Care , Children's Services , and Housing . This programme is data-led and insight-driven, aiming to modernise outdated systems, improve service delivery, and foster a … culture of continuous improvement. We are seeking two experienced Data Analysts to support this work as part of a dynamic internal consultancy team. These roles will be embedded within services, working hands-on with real data challenges to inform critical decisions and reform frontline delivery. KEY RESPONSIBILITIES Cleanse, validate, and restructure complex datasets from … reporting, dashboards, visuals) Solid SQL skills (data extraction, cleaning, validation) Familiarity with relevant local government systems, ideally including: Liquid Logic, Mosaic, NEC, RIO, Academy, Jigsaw Experience cleansing and aligning data from multiple disconnected sources Strong understanding of public service data needs (e.g. adult social care, children's services, housing) Able More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Graduate Data Analyst

London Area, United Kingdom
Harnham
Graduate Data Analyst – London – Full-Time, Office-Based Excel | Data Cleaning | Reporting | Quantitative Analysis | Litigation Support Salary - £25,000 - £35,000 We're working with a boutique data analytics consultancy that partners with top law firms on high-profile commercial and regulatory disputes. They’re now looking for a Graduate Data Analyst to join their growing team in Central London. This is a fantastic opportunity for a numerically minded graduate to launch a career in data analytics, combining forensic analysis with client-facing work. You’ll be working on complex data sets, helping to quantify financial claims and support legal investigations. The … analysis to assess overcharging and commercial losses Producing clear, structured outputs in Excel and Word for legal and client use Supporting assumptions and models with logical frameworks when data is incomplete Liaising with law firms, clients and data suppliers to gather and validate inputs What they’re looking for: A 2:1 degree or More ❯
Posted:

Graduate Data Analyst

City of London, London, United Kingdom
Harnham
Graduate Data Analyst – London – Full-Time, Office-Based Excel | Data Cleaning | Reporting | Quantitative Analysis | Litigation Support Salary - £25,000 - £35,000 We're working with a boutique data analytics consultancy that partners with top law firms on high-profile commercial and regulatory disputes. They’re now looking for a Graduate Data Analyst to join their growing team in Central London. This is a fantastic opportunity for a numerically minded graduate to launch a career in data analytics, combining forensic analysis with client-facing work. You’ll be working on complex data sets, helping to quantify financial claims and support legal investigations. The … analysis to assess overcharging and commercial losses Producing clear, structured outputs in Excel and Word for legal and client use Supporting assumptions and models with logical frameworks when data is incomplete Liaising with law firms, clients and data suppliers to gather and validate inputs What they’re looking for: A 2:1 degree or More ❯
Posted:

Graduate Data Analyst

South East London, England, United Kingdom
Harnham
Graduate Data Analyst – London – Full-Time, Office-Based Excel | Data Cleaning | Reporting | Quantitative Analysis | Litigation Support Salary - £25,000 - £35,000 We're working with a boutique data analytics consultancy that partners with top law firms on high-profile commercial and regulatory disputes. They’re now looking for a Graduate Data Analyst to join their growing team in Central London. This is a fantastic opportunity for a numerically minded graduate to launch a career in data analytics, combining forensic analysis with client-facing work. You’ll be working on complex data sets, helping to quantify financial claims and support legal investigations. The … analysis to assess overcharging and commercial losses Producing clear, structured outputs in Excel and Word for legal and client use Supporting assumptions and models with logical frameworks when data is incomplete Liaising with law firms, clients and data suppliers to gather and validate inputs What they’re looking for: A 2:1 degree or More ❯
Posted:

Data Migration Lead

City of London, London, United Kingdom
Hybrid / WFH Options
Albany Beck
Data Migration Lead Location: London (Hybrid) Company: Albany Beck Employment Type: Permanent About Albany Beck Albany Beck is a consultancy firm that partners with some of the most forward-thinking organisations in financial services and beyond. We specialise in delivering high-impact, flexible solutions through a combination of deep industry expertise and dynamic talent. Our culture is … aims to modernise and streamline front-to-back operations, consolidate systems, and enhance digital capabilities across the client lifecycle. As part of this large-scale implementation, a dedicated Data Migration Lead is required to own and drive the end-to-end data migration strategy and execution. You will work closely with business stakeholders, technology … management platforms, ideally with prior exposure to Avaloq (desirable but not essential). Strong knowledge of data migration methodologies including data mapping, extraction, cleansing, transformation, reconciliation, and cutover planning. Experience working with legacy systems and managing complex data landscapes including customer, account, transaction, product, and portfolio data. Understanding of the More ❯
Posted:
Data Cleansing
London
10th Percentile
£41,950
25th Percentile
£50,000
Median
£67,500
75th Percentile
£85,000
90th Percentile
£95,250