Period
to 16 June 2019

The following table provides summary statistics for contract job vacancies advertised in the City of 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 16 June 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
Central London > City of London
6 months to
16 Jun 2019
Same period 2018 Same period 2017
Rank 132 204 148
Rank change year-on-year +72 -56 +2
Contract jobs citing Data Quality 104 50 86
As % of all contract IT jobs advertised in the City of London 1.63% 0.73% 1.38%
As % of the Quality Assurance & Compliance category 18.74% 6.75% 9.36%
Number of daily rates quoted 80 33 63
City of London median daily rate £550 £475 £500
Median daily rate % change year-on-year +15.79% -5.00% +5.26%
10th Percentile £409 £413 £356
90th Percentile £576 £686 £675
Central London median daily rate £550 £550 £494
% change year-on-year - +11.39% +3.95%
Number of hourly rates quoted 2 1 0
City of London median hourly rate £12.75 £15.55 -
Median hourly rate % change year-on-year -18.01% - -
Central London median hourly rate £12.75 £15.55 -
% change year-on-year -18.01% - -

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 the City of London with a requirement for quality assurance or compliance skills.

All Quality Assurance and Compliance Skills
City of London
Contract vacancies with a requirement for quality assurance or compliance skills 555 741 919
As % of all contract IT jobs advertised in the City of London 8.67% 10.75% 14.79%
Number of daily rates quoted 415 540 674
City of London median daily rate £500 £488 £500
Median daily rate % change year-on-year +2.56% -2.50% +5.26%
10th Percentile £325 £313 £313
90th Percentile £654 £675 £675
Central London median daily rate £500 £500 £500
Number of hourly rates quoted 9 8 13
City of London median hourly rate £17.66 £18.53 £14.85
Median hourly rate % change year-on-year -4.67% +24.75% -52.86%
10th Percentile £11.50 £13.81 £13.00
90th Percentile £71.76 £65.38 £20.70
Central London median hourly rate £18.58 £21.50 £14.75
% change year-on-year -13.58% +45.76% -53.17%

Data Quality
Job Vacancy Trend in the City of London

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

Job vacancy trend for Data Quality in the City of London

Data Quality
Contractor Daily Rate Trend in the City of London

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

Contractor daily rate trend for Data Quality in the City of London

Data Quality
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Data Quality in the City of London over the 6 months to 16 June 2019.

Contractor daily rate histogram for Data Quality in the City of London

Data Quality
Contractor Hourly Rate Trend in the City of London

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

Contractor hourly rate trend for Data Quality in the City of London

Data Quality
Contract Job Locations in the City of 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 City of London region over the 6 months to 16 June 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
London Bridge - 46 £550 -
Data Quality
Central London

For the 6 months to 16 June 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 City of London region with a requirement for Data Quality.

1 78 (75.00%) SQL
2 69 (66.35%) Analytics
3 66 (63.46%) Data Modelling
4 64 (61.54%) Data Warehouse
4 64 (61.54%) Finance
5 51 (49.04%) Data Science
6 50 (48.08%) Machine Learning
6 50 (48.08%) Big Data
6 50 (48.08%) Kafka
7 47 (45.19%) Star Schema
8 46 (44.23%) Apache Spark
8 46 (44.23%) Enterprise Data Warehouse
9 45 (43.27%) OLAP Cube
9 45 (43.27%) Oozie
9 45 (43.27%) Hadoop
9 45 (43.27%) Apache Hive
9 45 (43.27%) OLAP
9 45 (43.27%) SQL Optimisation
10 20 (19.23%) Business Intelligence
10 20 (19.23%) Agile Software Development
11 17 (16.35%) Analytical Skills
12 16 (15.38%) Data Governance
12 16 (15.38%) Python
13 14 (13.46%) ETL
14 13 (12.50%) Microsoft
14 13 (12.50%) Data Analysis
14 13 (12.50%) Problem-Solving
15 12 (11.54%) Power Platform
15 12 (11.54%) Power BI
15 12 (11.54%) Migration

Data Quality
Co-occurring IT Skills in the City of 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 46 (44.23%) Apache Spark
2 4 (3.85%) SharePoint
3 3 (2.88%) Apache
4 1 (0.96%) ArcGIS
4 1 (0.96%) BizTalk Server
4 1 (0.96%) Oracle SOA Suite
Applications
1 7 (6.73%) Microsoft Excel
2 2 (1.92%) Microsoft Office
3 1 (0.96%) Microsoft Project
Business Applications
1 2 (1.92%) Dynamics CRM
2 1 (0.96%) Markit EDM
Cloud Services
1 12 (11.54%) Power Platform
2 8 (7.69%) Microsoft Azure
3 5 (4.81%) Amazon AWS
4 4 (3.85%) Amazon S3
5 3 (2.88%) Dynamics 365
5 3 (2.88%) Force.com
6 2 (1.92%) Amazon CloudWatch
6 2 (1.92%) Amazon EC2
6 2 (1.92%) Amazon Glacier
6 2 (1.92%) Amazon SQS
6 2 (1.92%) AWS CloudFormation
6 2 (1.92%) AWS CloudTrail
6 2 (1.92%) Virtual Private Cloud
7 1 (0.96%) Google Analytics
7 1 (0.96%) Google Cloud Platform
Communications & Networking
1 1 (0.96%) HTTP
Database & Business Intelligence
1 64 (61.54%) Data Warehouse
2 50 (48.08%) Big Data
3 47 (45.19%) Star Schema
4 46 (44.23%) Enterprise Data Warehouse
5 45 (43.27%) Apache Hive
5 45 (43.27%) Hadoop
5 45 (43.27%) OLAP
5 45 (43.27%) OLAP Cube
6 12 (11.54%) Power BI
7 11 (10.58%) SQL Server
8 10 (9.62%) SQL Server Integration Services
9 7 (6.73%) SQL Server Reporting Services
10 6 (5.77%) NoSQL
11 5 (4.81%) SQL Server Analysis Services
12 4 (3.85%) Relational Database
13 3 (2.88%) Microsoft Analysis Services
14 2 (1.92%) Azure SQL Database
14 2 (1.92%) OLTP
14 2 (1.92%) Oracle BI EE
14 2 (1.92%) SQL Server 2012
Development Applications
1 10 (9.62%) Git (software)
2 2 (1.92%) ERwin
2 2 (1.92%) Jenkins
2 2 (1.92%) Team Foundation Server
3 1 (0.96%) Bitbucket Server
3 1 (0.96%) Eclipse
3 1 (0.96%) JIRA
3 1 (0.96%) Protractor
3 1 (0.96%) Selenium
3 1 (0.96%) SQL Server Management Studio (SSMS)
3 1 (0.96%) Subversion
3 1 (0.96%) Visual Studio
General
1 64 (61.54%) Finance
2 3 (2.88%) Advertising
3 2 (1.92%) Banking
3 2 (1.92%) Legal
3 2 (1.92%) Marketing
4 1 (0.96%) Back Office
4 1 (0.96%) Billing
4 1 (0.96%) Pharmaceutical
4 1 (0.96%) Telecoms
Job Titles
1 52 (50.00%) Data Engineer
2 45 (43.27%) Hadoop Engineer
3 18 (17.31%) Analyst
4 14 (13.46%) Developer
5 11 (10.58%) Data Analyst
6 7 (6.73%) Business Analyst
7 5 (4.81%) Python Developer
7 5 (4.81%) SQL Analyst
8 4 (3.85%) Analyst Developer
8 4 (3.85%) Business Intelligence Analyst
8 4 (3.85%) Business Intelligence Developer
8 4 (3.85%) Data Business Analyst
8 4 (3.85%) Data Modeller
9 3 (2.88%) Architect
9 3 (2.88%) Data Architect
9 3 (2.88%) Power BI Developer
9 3 (2.88%) Report Analyst
9 3 (2.88%) Senior Developer
9 3 (2.88%) SQL BI Developer
9 3 (2.88%) SQL Reporting Analyst
Libraries, Frameworks & Software Standards
1 50 (48.08%) Kafka
2 6 (5.77%) HTML
3 4 (3.85%) Web Services
4 3 (2.88%) JSON
4 3 (2.88%) XML
5 2 (1.92%) Apache NiFi
5 2 (1.92%) JMS
5 2 (1.92%) REST
5 2 (1.92%) SOAP
5 2 (1.92%) Spring
6 1 (0.96%) .NET
6 1 (0.96%) MDX
6 1 (0.96%) NumPy
6 1 (0.96%) Pandas
6 1 (0.96%) Pyramid
6 1 (0.96%) RESTful
6 1 (0.96%) SciPy
Miscellaneous
1 17 (16.35%) Analytical Skills
2 11 (10.58%) Data Structures
3 4 (3.85%) Reference Data
4 3 (2.88%) Algorithms
4 3 (2.88%) Data Protection Act
4 3 (2.88%) NHS
5 2 (1.92%) Management Information System
5 2 (1.92%) Reinsurance
5 2 (1.92%) Virtual Team
6 1 (0.96%) Data Centre
6 1 (0.96%) Freedom of Information
6 1 (0.96%) Freedom of Information Act
6 1 (0.96%) Linked Data
6 1 (0.96%) Replication
6 1 (0.96%) Self-Motivation
6 1 (0.96%) Tandem
Operating Systems
1 7 (6.73%) Linux
2 1 (0.96%) Windows
Processes & Methodologies
1 69 (66.35%) Analytics
2 66 (63.46%) Data Modelling
3 51 (49.04%) Data Science
4 50 (48.08%) Machine Learning
5 45 (43.27%) SQL Optimisation
6 20 (19.23%) Agile Software Development
6 20 (19.23%) Business Intelligence
7 16 (15.38%) Data Governance
8 14 (13.46%) ETL
9 13 (12.50%) Data Analysis
9 13 (12.50%) Problem-Solving
10 12 (11.54%) Migration
11 10 (9.62%) Data Transformation
12 9 (8.65%) Asset Management
12 9 (8.65%) Data Integration
13 8 (7.69%) Data Analytics
13 8 (7.69%) Data Architecture
13 8 (7.69%) Data Management
13 8 (7.69%) Data Migration
13 8 (7.69%) Master Data Management
Programming Languages
1 78 (75.00%) SQL
2 16 (15.38%) Python
3 7 (6.73%) Bash Shell
4 5 (4.81%) Java
4 5 (4.81%) JavaScript
5 2 (1.92%) C#
5 2 (1.92%) Java 8
5 2 (1.92%) T-SQL
6 1 (0.96%) C++
6 1 (0.96%) Data Analysis Expressions (DAX)
6 1 (0.96%) PHP
6 1 (0.96%) R
6 1 (0.96%) VB.NET
6 1 (0.96%) VBA
Qualifications
1 8 (7.69%) Degree
2 6 (5.77%) Computer Science Degree
3 3 (2.88%) SC Cleared
3 3 (2.88%) Security Cleared
4 1 (0.96%) ISEB
Quality Assurance & Compliance
1 2 (1.92%) Solvency II
2 1 (0.96%) GDPR
2 1 (0.96%) ISO/IEC 27001
2 1 (0.96%) QA
System Software
1 5 (4.81%) Docker
Systems Management
1 45 (43.27%) Oozie
2 2 (1.92%) Ansible
2 2 (1.92%) Kubernetes
Vendors
1 13 (12.50%) Microsoft
2 9 (8.65%) Tableau
3 6 (5.77%) Oracle
4 5 (4.81%) Salesforce.com
5 3 (2.88%) Dell
5 3 (2.88%) MuleSoft
6 2 (1.92%) Siebel
7 1 (0.96%) Ariba
7 1 (0.96%) Bloomberg
7 1 (0.96%) Google
7 1 (0.96%) SAP
7 1 (0.96%) Zoho