Period
to 23 September 2018

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 23 September 2018 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
23 Sep 2018
Same period 2017 Same period 2016
Rank 183 162 177
Rank change year-on-year -21 +15 -9
Contract jobs citing Data Quality 70 79 77
As % of all contract IT jobs advertised in the City of London 1.02% 1.17% 1.14%
As % of the Quality Assurance & Compliance category 10.29% 8.25% 9.80%
Number of daily rates quoted 49 65 67
City of London median daily rate £475 £475 £475
10th Percentile £310 £363 £360
90th Percentile £666 £675 £703
Central London median daily rate £525 £475 £475
% change year-on-year +10.53% - +5.56%
Number of hourly rates quoted 1 0 0
City of London median hourly rate £15.55 - -
Central London median hourly rate £15.55 - -

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 680 958 786
As % of all contract IT jobs advertised in the City of London 9.90% 14.22% 11.62%
Number of daily rates quoted 531 742 628
City of London median daily rate £475 £500 £475
Median daily rate % change year-on-year -5.00% +5.26% +5.56%
10th Percentile £300 £313 £313
90th Percentile £675 £688 £641
Central London median daily rate £475 £500 £475
% change year-on-year -5.00% +5.26% +5.56%
Number of hourly rates quoted 10 12 2
City of London median hourly rate £17.03 £15.00 £52.75
Median hourly rate % change year-on-year +13.50% -71.56% +205.80%
10th Percentile £13.85 £13.09 £25.18
90th Percentile £21.93 £26.63 £79.33
Central London median hourly rate £17.03 £15.00 £52.75
% change year-on-year +13.50% -71.56% +210.29%

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 23 September 2018.

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 23 September 2018. 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 - 9 £550 -
Moorgate - 1 £450 -
Data Quality
Central London

For the 6 months to 23 September 2018, 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 36 (51.43%) SQL
2 28 (40.00%) Analytics
3 24 (34.29%) Finance
4 23 (32.86%) Data Warehouse
5 20 (28.57%) Data Modelling
5 20 (28.57%) Business Intelligence
6 18 (25.71%) Data Science
7 16 (22.86%) ETL
8 15 (21.43%) SQL Server
8 15 (21.43%) Data Governance
9 14 (20.00%) Big Data
9 14 (20.00%) Hadoop
10 13 (18.57%) Visualisation
10 13 (18.57%) Kafka
11 12 (17.14%) Machine Learning
11 12 (17.14%) Analytical Skills
11 12 (17.14%) Power BI
12 11 (15.71%) Enterprise Data Warehouse
12 11 (15.71%) Star Schema
12 11 (15.71%) Migration
12 11 (15.71%) Data Management
12 11 (15.71%) SQL Server Integration Services
13 10 (14.29%) Agile Software Development
13 10 (14.29%) Python
13 10 (14.29%) OLAP
13 10 (14.29%) Apache Hive
13 10 (14.29%) Apache Spark
14 9 (12.86%) SQL Optimisation
14 9 (12.86%) Problem-Solving
14 9 (12.86%) OLAP Cube

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 10 (14.29%) Apache Spark
2 4 (5.71%) SAS
2 4 (5.71%) SharePoint
3 1 (1.43%) Apache
Applications
1 6 (8.57%) Microsoft Excel
2 1 (1.43%) Microsoft Office
2 1 (1.43%) Microsoft PowerPoint
2 1 (1.43%) Spreadsheet
Business Applications
1 2 (2.86%) Dynamics CRM
2 1 (1.43%) NetSuite
2 1 (1.43%) Unica
Cloud Services
1 4 (5.71%) Microsoft Azure
2 3 (4.29%) Google Analytics
2 3 (4.29%) Google Cloud Platform
2 3 (4.29%) Google Tag Manager
3 2 (2.86%) Amazon AWS
3 2 (2.86%) Dynamics 365
4 1 (1.43%) AdWords
4 1 (1.43%) Amazon S3
4 1 (1.43%) Office 365
4 1 (1.43%) SaaS
Database & Business Intelligence
1 23 (32.86%) Data Warehouse
2 15 (21.43%) SQL Server
3 14 (20.00%) Big Data
3 14 (20.00%) Hadoop
4 12 (17.14%) Power BI
5 11 (15.71%) Enterprise Data Warehouse
5 11 (15.71%) SQL Server Integration Services
5 11 (15.71%) Star Schema
6 10 (14.29%) Apache Hive
6 10 (14.29%) OLAP
7 9 (12.86%) OLAP Cube
8 8 (11.43%) Relational Database
9 7 (10.00%) SQL Server Analysis Services
9 7 (10.00%) SQL Server Reporting Services
10 6 (8.57%) NoSQL
11 5 (7.14%) SQL Server 2016
12 4 (5.71%) HBase
12 4 (5.71%) Microsoft Analysis Services
12 4 (5.71%) MongoDB
13 3 (4.29%) Apache Cassandra
Development Applications
1 4 (5.71%) Subversion
2 3 (4.29%) Git (software)
3 2 (2.86%) Jenkins
4 1 (1.43%) Bundler
4 1 (1.43%) ERwin
4 1 (1.43%) RStudio
4 1 (1.43%) Team Foundation Server
4 1 (1.43%) Visual Studio
General
1 24 (34.29%) Finance
2 7 (10.00%) Marketing
3 4 (5.71%) Retail
4 3 (4.29%) Financial Institution
5 2 (2.86%) Banking
6 1 (1.43%) Games
6 1 (1.43%) German Language
6 1 (1.43%) Law
6 1 (1.43%) Legal
Job Titles
1 17 (24.29%) Analyst
2 15 (21.43%) Data Engineer
3 11 (15.71%) Data Analyst
4 10 (14.29%) Hadoop Engineer
5 9 (12.86%) Developer
6 5 (7.14%) Big Data Engineer
6 5 (7.14%) Consultant
6 5 (7.14%) Data Scientist
6 5 (7.14%) SQL Developer
7 4 (5.71%) Data Governance Specialist
8 3 (4.29%) Business Intelligence Developer
8 3 (4.29%) DBA
8 3 (4.29%) Python Engineer
8 3 (4.29%) SQL DBA
8 3 (4.29%) SQL Server Consultant
8 3 (4.29%) SQL Server DBA
8 3 (4.29%) SSAS Developer
8 3 (4.29%) SSIS Developer
8 3 (4.29%) T-SQL Developer
8 3 (4.29%) Web Analyst
Libraries, Frameworks & Software Standards
1 13 (18.57%) Kafka
2 4 (5.71%) Natural Language Processing
2 4 (5.71%) XML
3 3 (4.29%) jQuery
4 1 (1.43%) CSS
4 1 (1.43%) D3.js
4 1 (1.43%) LAMP
4 1 (1.43%) LAPP Stack
4 1 (1.43%) OpenNLP
4 1 (1.43%) RabbitMQ
4 1 (1.43%) React
4 1 (1.43%) SailPoint
4 1 (1.43%) Struts
Miscellaneous
1 12 (17.14%) Analytical Skills
2 6 (8.57%) Data Structures
3 5 (7.14%) Fixed Income
4 3 (4.29%) Algorithms
4 3 (4.29%) Equities
4 3 (4.29%) Management Information System
4 3 (4.29%) Reference Data
4 3 (4.29%) Replication
5 2 (2.86%) Greenfield Project
5 2 (2.86%) Mobile App
6 1 (1.43%) Mainframe
6 1 (1.43%) NHS
6 1 (1.43%) Self-Motivation
6 1 (1.43%) Taxonomies
6 1 (1.43%) Virtual Team
Operating Systems
1 2 (2.86%) Linux
Processes & Methodologies
1 28 (40.00%) Analytics
2 20 (28.57%) Business Intelligence
2 20 (28.57%) Data Modelling
3 18 (25.71%) Data Science
4 16 (22.86%) ETL
5 15 (21.43%) Data Governance
6 13 (18.57%) Visualisation
7 12 (17.14%) Machine Learning
8 11 (15.71%) Data Management
8 11 (15.71%) Migration
9 10 (14.29%) Agile Software Development
10 9 (12.86%) Problem-Solving
10 9 (12.86%) SQL Optimisation
11 7 (10.00%) Data Analysis
11 7 (10.00%) Mentoring
11 7 (10.00%) Statistics
12 6 (8.57%) Data Lineage
12 6 (8.57%) Project Management
13 5 (7.14%) Data Cleansing
13 5 (7.14%) Translating Business Requirements
Programming Languages
1 36 (51.43%) SQL
2 10 (14.29%) Python
3 8 (11.43%) T-SQL
4 6 (8.57%) R
5 3 (4.29%) JavaScript
5 3 (4.29%) MATLAB
6 2 (2.86%) C#
6 2 (2.86%) Java
6 2 (2.86%) Scala
7 1 (1.43%) Bash Shell
7 1 (1.43%) ES6
7 1 (1.43%) HiveQL
7 1 (1.43%) Natural
7 1 (1.43%) PL/SQL
7 1 (1.43%) Shell Script
7 1 (1.43%) VBA
Qualifications
1 6 (8.57%) Degree
2 3 (4.29%) PhD
3 1 (1.43%) SC Cleared
3 1 (1.43%) Security Cleared
Quality Assurance & Compliance
1 7 (10.00%) QA
2 3 (4.29%) SLA
3 1 (1.43%) GDPR
3 1 (1.43%) Solvency II
System Software
1 3 (4.29%) Apache Flume
2 2 (2.86%) Docker
Systems Management
1 9 (12.86%) Oozie
2 1 (1.43%) Grafana
2 1 (1.43%) Kibana
2 1 (1.43%) Terraform
Vendors
1 9 (12.86%) Microsoft
1 9 (12.86%) Tableau
2 7 (10.00%) Alteryx
3 6 (8.57%) Oracle
4 3 (4.29%) Google
4 3 (4.29%) Hortonworks
4 3 (4.29%) Tealium
5 2 (2.86%) IBM
5 2 (2.86%) Teradata
6 1 (1.43%) Ab Initio
6 1 (1.43%) Adobe
6 1 (1.43%) BISAM
6 1 (1.43%) Cloudera
6 1 (1.43%) GoldenSource
6 1 (1.43%) Salesforce.com
6 1 (1.43%) Siebel
6 1 (1.43%) Software AG
6 1 (1.43%) Sybase
6 1 (1.43%) Talend
6 1 (1.43%) Vertica