Period
to 6 December 2019

The following table provides summary statistics for contract job vacancies advertised in Central London with a requirement for Data Quality skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Data Quality over the 6 months to 6 December 2019 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Data Quality
London > Central London
6 months to
6 Dec 2019
Same period 2018 Same period 2017
Rank 162 201 202
Rank change year-on-year +39 +1 -38
Contract jobs citing Data Quality 86 104 78
As % of all contract IT jobs advertised in Central London 1.19% 1.11% 0.90%
As % of the Quality Assurance & Compliance category 12.08% 12.34% 7.05%
Number of daily rates quoted 60 80 59
Central London median daily rate £518 £513 £475
Median daily rate % change year-on-year +0.98% +7.89% -
10th Percentile £261 £259 £300
90th Percentile £653 £588 £700
London median daily rate £500 £475 £475
% change year-on-year +5.26% - -
Number of hourly rates quoted 0 0 1
Central London median hourly rate - - £65.00
London median hourly rate £25.50 £22.44 £60.00
% change year-on-year +13.64% -62.60% +208.21%

Data Quality is in the Quality Assurance and Compliance category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Central London with a requirement for quality assurance or compliance skills.

All Quality Assurance and Compliance Skills
Central London
Contract vacancies with a requirement for quality assurance or compliance skills 712 843 1,106
As % of all contract IT jobs advertised in Central London 9.83% 9.02% 12.74%
Number of daily rates quoted 509 636 847
Central London median daily rate £488 £475 £488
Median daily rate % change year-on-year +2.63% -2.56% +2.63%
10th Percentile £296 £273 £307
90th Percentile £675 £644 £675
London median daily rate £493 £475 £480
% change year-on-year +3.68% -1.04% +3.78%
Number of hourly rates quoted 4 13 11
Central London median hourly rate £17.98 £19.00 £15.00
Median hourly rate % change year-on-year -5.36% +26.67% -67.74%
London median hourly rate £18.70 £26.50 £20.00
% change year-on-year -29.43% +32.50% -

Data Quality
Job Vacancy Trend in Central London

Job postings citing Data Quality as a percentage of all IT jobs advertised in Central London.

Job vacancy trend for Data Quality in Central London

Data Quality
Contractor Daily Rate Trend in Central London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Data Quality in Central London.

Contractor daily rate trend for Data Quality in Central London

Data Quality
Contractor Daily Rate Histogram in Central London

The daily rate distribution of IT jobs citing Data Quality in Central London over the 6 months to 6 December 2019.

Contractor daily rate histogram for Data Quality in Central London

Data Quality
Contractor Hourly Rate Trend in Central London

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Data Quality in Central London.

Contractor hourly rate trend for Data Quality in Central London

Data Quality
Contract Job Locations in Central London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Data Quality within the Central London region over the 6 months to 6 December 2019. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London +37 72 £520 -0.95% 23
Southwark +23 5 £450 -18.18%
City of Westminster +4 3 £550 +69.23%
West End of London +25 1 - -
Data Quality
London

For the 6 months to 6 December 2019, IT contractor jobs citing Data Quality also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the Central London region with a requirement for Data Quality.

1 41 (47.67%) SQL
2 32 (37.21%) Finance
3 26 (30.23%) Business Intelligence
4 24 (27.91%) Data Analysis
5 22 (25.58%) Data Modelling
5 22 (25.58%) ETL
6 21 (24.42%) Data Warehouse
7 20 (23.26%) Agile Software Development
7 20 (23.26%) Data Management
8 17 (19.77%) Data Governance
9 15 (17.44%) Analytics
10 14 (16.28%) Migration
10 14 (16.28%) Power BI
10 14 (16.28%) Power Platform
11 13 (15.12%) Problem-Solving
11 13 (15.12%) Microsoft
11 13 (15.12%) SQL Server
11 13 (15.12%) Microsoft Excel
12 12 (13.95%) Oracle
12 12 (13.95%) Stakeholder Management
12 12 (13.95%) SQL Server Integration Services
13 11 (12.79%) Data Migration
13 11 (12.79%) Data Architecture
13 11 (12.79%) Analytical Skills
14 10 (11.63%) Data Science
14 10 (11.63%) Big Data
14 10 (11.63%) Python
15 9 (10.47%) Banking
15 9 (10.47%) Machine Learning
16 8 (9.30%) Azure

Data Quality
Co-occurring IT Skills in Central London by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 6 (6.98%) SharePoint
2 2 (2.33%) Apache Spark
2 2 (2.33%) Confluence
3 1 (1.16%) Apache Airflow
3 1 (1.16%) ArcGIS
3 1 (1.16%) ArcSDE
3 1 (1.16%) SAS
Applications
1 13 (15.12%) Microsoft Excel
2 5 (5.81%) Microsoft Office
3 3 (3.49%) MS Visio
4 2 (2.33%) Microsoft PowerPoint
Business Applications
1 2 (2.33%) Dynamics CRM
2 1 (1.16%) SAP MDG
Cloud Services
1 14 (16.28%) Power Platform
2 8 (9.30%) Azure
3 6 (6.98%) Amazon S3
4 5 (5.81%) Amazon EMR
4 5 (5.81%) AWS
4 5 (5.81%) AWS Lambda
4 5 (5.81%) Serverless
5 4 (4.65%) Dynamics 365
6 3 (3.49%) Microsoft Flow
6 3 (3.49%) PowerApps
7 1 (1.16%) Azure Data Factory
7 1 (1.16%) GCP
7 1 (1.16%) GitHub
7 1 (1.16%) PaaS
7 1 (1.16%) SaaS
Communications & Networking
1 3 (3.49%) TCP/IP
2 1 (1.16%) PuTTY
2 1 (1.16%) Wi-Fi
Database & Business Intelligence
1 21 (24.42%) Data Warehouse
2 14 (16.28%) Power BI
3 13 (15.12%) SQL Server
4 12 (13.95%) SQL Server Integration Services
5 10 (11.63%) Big Data
6 7 (8.14%) SQL Server Reporting Services
7 6 (6.98%) Amazon Redshift
7 6 (6.98%) Data Lake
7 6 (6.98%) Relational Database
8 4 (4.65%) Azure SQL Data Warehouse
8 4 (4.65%) Azure SQL Database
8 4 (4.65%) Hadoop
8 4 (4.65%) NoSQL
9 3 (3.49%) Apache Hive
9 3 (3.49%) Oracle BI EE
9 3 (3.49%) Oracle Reports
10 2 (2.33%) Data Mining
10 2 (2.33%) DB2
10 2 (2.33%) OLAP
10 2 (2.33%) Star Schema
Development Applications
1 4 (4.65%) Git (software)
2 3 (3.49%) JIRA
3 2 (2.33%) Selenium
4 1 (1.16%) Bitbucket Server
4 1 (1.16%) Visual Studio
General
1 32 (37.21%) Finance
2 9 (10.47%) Banking
3 6 (6.98%) Advertising
3 6 (6.98%) Public Sector
4 3 (3.49%) Front Office
4 3 (3.49%) Legal
5 2 (2.33%) Back Office
5 2 (2.33%) Retail
6 1 (1.16%) Investment Banking
6 1 (1.16%) Marketing
Job Titles
1 34 (39.53%) Analyst
2 23 (26.74%) Data Analyst
3 19 (22.09%) Developer
4 8 (9.30%) Architect
4 8 (9.30%) Data Architect
4 8 (9.30%) SQL Developer
5 7 (8.14%) SQL Analyst
6 6 (6.98%) SQL Data Analyst
7 5 (5.81%) Business Intelligence Developer
7 5 (5.81%) Consultant
7 5 (5.81%) Data Warehouse Developer
7 5 (5.81%) Senior Architect
7 5 (5.81%) Senior Data Architect
8 3 (3.49%) Administrator
8 3 (3.49%) Data Consultant
8 3 (3.49%) Data Manager
8 3 (3.49%) ETL Developer
8 3 (3.49%) IT Support
8 3 (3.49%) IT Support Analyst
8 3 (3.49%) Support Analyst
Libraries, Frameworks & Software Standards
1 7 (8.14%) XML
2 4 (4.65%) HTML
3 2 (2.33%) Kafka
3 2 (2.33%) Web Services
4 1 (1.16%) .NET
4 1 (1.16%) Ajax
4 1 (1.16%) AngularJS
4 1 (1.16%) CSS
4 1 (1.16%) JSON
4 1 (1.16%) MDX
4 1 (1.16%) NumPy
4 1 (1.16%) Pandas
4 1 (1.16%) REST
4 1 (1.16%) SciPy
4 1 (1.16%) SOAP
4 1 (1.16%) XSD
Miscellaneous
1 11 (12.79%) Analytical Skills
2 4 (4.65%) Management Information System
3 3 (3.49%) Algorithms
3 3 (3.49%) Data Structures
4 2 (2.33%) Derivative
4 2 (2.33%) Equities
4 2 (2.33%) Fixed Income
4 2 (2.33%) Foreign Exchange (FX)
4 2 (2.33%) Linked Data
4 2 (2.33%) NHS
4 2 (2.33%) Self-Motivation
5 1 (1.16%) Credit Risk
5 1 (1.16%) Data Protection Act
5 1 (1.16%) Freedom of Information
5 1 (1.16%) Freedom of Information Act
5 1 (1.16%) Hedge funds
5 1 (1.16%) Reference Data
5 1 (1.16%) Reinsurance
5 1 (1.16%) Replication
5 1 (1.16%) Tandem
Operating Systems
1 4 (4.65%) Linux
1 4 (4.65%) Unix
2 3 (3.49%) Windows
Processes & Methodologies
1 26 (30.23%) Business Intelligence
2 24 (27.91%) Data Analysis
3 22 (25.58%) Data Modelling
3 22 (25.58%) ETL
4 20 (23.26%) Agile Software Development
4 20 (23.26%) Data Management
5 17 (19.77%) Data Governance
6 15 (17.44%) Analytics
7 14 (16.28%) Migration
8 13 (15.12%) Problem-Solving
9 12 (13.95%) Stakeholder Management
10 11 (12.79%) Data Architecture
10 11 (12.79%) Data Migration
11 10 (11.63%) Data Science
12 9 (10.47%) Machine Learning
13 7 (8.14%) Decision-Making
13 7 (8.14%) Supplier Management
14 6 (6.98%) Artificial Intelligence
14 6 (6.98%) Master Data Management
14 6 (6.98%) Re-Platforming
Programming Languages
1 41 (47.67%) SQL
2 10 (11.63%) Python
3 8 (9.30%) Java
4 6 (6.98%) PL/SQL
5 5 (5.81%) Perl
5 5 (5.81%) R
5 5 (5.81%) Scala
5 5 (5.81%) T-SQL
6 4 (4.65%) JavaScript
7 3 (3.49%) C++
7 3 (3.49%) Shell Script
8 2 (2.33%) C#
8 2 (2.33%) MATLAB
9 1 (1.16%) Bash Shell
9 1 (1.16%) Cypher
9 1 (1.16%) Data Analysis Expressions (DAX)
9 1 (1.16%) VBA
Qualifications
1 4 (4.65%) Degree
1 4 (4.65%) Security Cleared
2 3 (3.49%) SC Cleared
3 1 (1.16%) BPSS Clearance
3 1 (1.16%) Computer Science Degree
3 1 (1.16%) MBA
3 1 (1.16%) PhD
Quality Assurance & Compliance
1 6 (6.98%) QA
2 3 (3.49%) GDPR
3 1 (1.16%) Basel III
3 1 (1.16%) EMIR
3 1 (1.16%) IFRS
3 1 (1.16%) IFRS 9
3 1 (1.16%) ISO/IEC 27001
3 1 (1.16%) MiFID
System Software
1 2 (2.33%) Active Directory
2 1 (1.16%) Docker
Systems Management
1 2 (2.33%) Oozie
Vendors
1 13 (15.12%) Microsoft
2 12 (13.95%) Oracle
3 6 (6.98%) Tableau
4 5 (5.81%) SAP
5 4 (4.65%) Sybase
6 3 (3.49%) Alteryx
6 3 (3.49%) Informatica
6 3 (3.49%) ServiceNow
6 3 (3.49%) Teradata
7 2 (2.33%) Ariba
7 2 (2.33%) Netezza
7 2 (2.33%) Siebel
8 1 (1.16%) Cognos
8 1 (1.16%) Databricks
8 1 (1.16%) Google
8 1 (1.16%) Salesforce.com
8 1 (1.16%) Talend