Period
to 16 August 2018

The following table provides summary statistics for contract job vacancies advertised in 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 August 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
England > London
6 months to
16 Aug 2018
Same period 2017 Same period 2016
Rank 222 215 235
Rank change year-on-year -7 +20 -17
Contract jobs citing Data Quality 536 528 511
As % of all contract IT jobs advertised in London 1.18% 1.24% 1.13%
As % of the Quality Assurance & Compliance category 10.19% 10.13% 10.46%
Number of daily rates quoted 379 349 364
London median daily rate £500 £483 £475
Median daily rate % change year-on-year +3.63% +1.58% +5.56%
10th Percentile £313 £325 £300
90th Percentile £663 £675 £663
England median daily rate £475 £461 £450
% change year-on-year +3.09% +2.39% +4.65%
Number of hourly rates quoted 2 2 7
London median hourly rate £25.28 £93.75 £22.50
Median hourly rate % change year-on-year -73.04% +316.67% +17.75%
10th Percentile £17.05 £33.23 £15.05
90th Percentile £33.11 £161.28 £32.05
England median hourly rate £22.50 £17.50 £16.09
% change year-on-year +28.57% +8.76% -21.51%

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 London with a requirement for quality assurance or compliance skills.

All Quality Assurance and Compliance Skills
London
Contract vacancies with a requirement for quality assurance or compliance skills 5,260 5,213 4,886
As % of all contract IT jobs advertised in London 11.55% 12.20% 10.77%
Number of daily rates quoted 3,717 3,705 3,487
London median daily rate £488 £500 £450
Median daily rate % change year-on-year -2.50% +11.11% -
10th Percentile £301 £305 £265
90th Percentile £675 £675 £638
England median daily rate £450 £450 £420
% change year-on-year - +7.14% +5.00%
Number of hourly rates quoted 74 60 54
London median hourly rate £27.75 £20.25 £22.25
Median hourly rate % change year-on-year +37.04% -8.99% +11.25%
10th Percentile £14.00 £12.88 £13.73
90th Percentile £63.68 £50.00 £43.75
England median hourly rate £22.75 £20.00 £22.50
% change year-on-year +13.75% -11.11% +7.14%

Data Quality
Job Vacancy Trend in London

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

Job vacancy trend for Data Quality in London

Data Quality
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for Data Quality in London

Data Quality
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing Data Quality in London over the 6 months to 16 August 2018.

Contractor daily rate histogram for Data Quality in London

Data Quality
Contractor Hourly Rate Trend in London

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

Contractor hourly rate trend for Data Quality in London

Data Quality
Contractor Hourly Rate Histogram in London

The hourly rate distribution of IT jobs citing Data Quality in London over the 6 months to 16 August 2018.

Contractor hourly rate histogram for Data Quality in London

Data Quality
Contract Job Locations in 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 London region over the 6 months to 16 August 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
Central London -8 102 £543 +11.86% 22
South London -24 35 £550 -6.38% 2
West London -24 25 £250 -39.39% 11
East London -18 14 £469 +27.12% 2
Data Quality
England

For the 6 months to 16 August 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 London region with a requirement for Data Quality.

1 233 (43.47%) SQL
2 193 (36.01%) Finance
3 171 (31.90%) Data Modelling
4 160 (29.85%) Analytics
5 140 (26.12%) Data Warehouse
6 129 (24.07%) Big Data
7 112 (20.90%) Migration
8 107 (19.96%) ETL
9 105 (19.59%) Hadoop
10 103 (19.22%) Agile Software Development
11 101 (18.84%) Business Intelligence
12 99 (18.47%) Analytical Skills
13 97 (18.10%) Data Governance
14 93 (17.35%) Kafka
15 90 (16.79%) SQL Server
15 90 (16.79%) Data Migration
16 82 (15.30%) Data Analysis
16 82 (15.30%) Data Science
17 80 (14.93%) Apache Spark
18 75 (13.99%) Python
18 75 (13.99%) Microsoft Excel
19 72 (13.43%) Data Management
20 69 (12.87%) Apache Hive
21 66 (12.31%) Machine Learning
22 63 (11.75%) Data Architecture
23 61 (11.38%) Data Integration
23 61 (11.38%) Oracle
24 60 (11.19%) Visualisation
24 60 (11.19%) Oozie
25 58 (10.82%) Java

Data Quality
Co-occurring IT Skills in 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 80 (14.93%) Apache Spark
2 40 (7.46%) SharePoint
3 27 (5.04%) Apache
4 19 (3.54%) SAS
5 9 (1.68%) Elasticsearch
6 8 (1.49%) Apache Pig
7 5 (0.93%) Confluence
8 2 (0.37%) Luigi
8 2 (0.37%) Oracle Coherence
8 2 (0.37%) Tomcat
9 1 (0.19%) CMS
9 1 (0.19%) Drupal
9 1 (0.19%) Jupyter
9 1 (0.19%) WordPress
Applications
1 75 (13.99%) Microsoft Excel
2 14 (2.61%) Microsoft PowerPoint
3 11 (2.05%) Microsoft Office
4 6 (1.12%) MS Visio
5 2 (0.37%) Shockwave
5 2 (0.37%) Spreadsheet
6 1 (0.19%) Blender
6 1 (0.19%) SPSS
6 1 (0.19%) Stata
Business Applications
1 7 (1.31%) Dynamics CRM
2 5 (0.93%) HFM
3 4 (0.75%) Line 500
3 4 (0.75%) Sage X3
4 3 (0.56%) NetSuite
4 3 (0.56%) SAP HR
4 3 (0.56%) SAP S/4HANA
5 2 (0.37%) Oracle EBS
5 2 (0.37%) Oracle Procure-to-Pay
5 2 (0.37%) Sage CRM
5 2 (0.37%) SAP HCM
5 2 (0.37%) SAP R/3
6 1 (0.19%) Cognos TM1
6 1 (0.19%) Markit EDM
6 1 (0.19%) Raiser's Edge
6 1 (0.19%) SAP ERP
6 1 (0.19%) SAP MM
6 1 (0.19%) SAP SD
6 1 (0.19%) Unit4 Business World
6 1 (0.19%) Workday HCM
Cloud Services
1 51 (9.51%) Amazon AWS
2 26 (4.85%) Microsoft Azure
3 13 (2.43%) SaaS
4 10 (1.87%) G Suite
4 10 (1.87%) GitHub
4 10 (1.87%) IaaS
4 10 (1.87%) PaaS
5 8 (1.49%) Amazon EMR
5 8 (1.49%) Amazon Kinesis
5 8 (1.49%) AWS Lambda
5 8 (1.49%) Serverless
6 6 (1.12%) Amazon S3
7 5 (0.93%) Dynamics 365
7 5 (0.93%) Google Analytics
7 5 (0.93%) Google Cloud Platform
8 4 (0.75%) Azure Data Factory
8 4 (0.75%) iPaaS
9 3 (0.56%) Cloud Computing
9 3 (0.56%) Google Tag Manager
9 3 (0.56%) Office 365
Communications & Networking
1 7 (1.31%) Intranet
2 5 (0.93%) Kerberos
2 5 (0.93%) SMS
3 4 (0.75%) FTP
4 3 (0.56%) Firewall
4 3 (0.56%) HTTP
4 3 (0.56%) HTTPS
4 3 (0.56%) SSL
4 3 (0.56%) VLAN
4 3 (0.56%) VPN
5 2 (0.37%) Junos
Database & Business Intelligence
1 140 (26.12%) Data Warehouse
2 129 (24.07%) Big Data
3 105 (19.59%) Hadoop
4 90 (16.79%) SQL Server
5 69 (12.87%) Apache Hive
6 55 (10.26%) Enterprise Data Warehouse
6 55 (10.26%) Relational Database
7 54 (10.07%) Star Schema
8 51 (9.51%) OLAP
9 49 (9.14%) OLAP Cube
10 46 (8.58%) SQL Server Integration Services
11 33 (6.16%) Power BI
12 32 (5.97%) NoSQL
13 29 (5.41%) HBase
14 25 (4.66%) SQL Server Reporting Services
15 18 (3.36%) Data Lake
15 18 (3.36%) SQL Server Analysis Services
16 17 (3.17%) Adabas
16 17 (3.17%) PostgreSQL
16 17 (3.17%) RDBMS
Development Applications
1 17 (3.17%) Visual Studio
2 16 (2.99%) Git (software)
3 13 (2.43%) Jenkins
4 12 (2.24%) Visual Studio Team System
5 10 (1.87%) JIRA
6 9 (1.68%) Team Foundation Server
7 7 (1.31%) Subversion
8 6 (1.12%) ERwin
9 5 (0.93%) PowerDesigner
10 3 (0.56%) Cucumber
10 3 (0.56%) Toad
10 3 (0.56%) VSS/SourceSafe
11 2 (0.37%) ER Studio
11 2 (0.37%) XMLSpy
12 1 (0.19%) HP UFT
12 1 (0.19%) JMeter
12 1 (0.19%) MSTest
12 1 (0.19%) Selenium
12 1 (0.19%) SoapUI
12 1 (0.19%) SpecFlow
General
1 193 (36.01%) Finance
2 48 (8.96%) Banking
3 22 (4.10%) Retail
4 20 (3.73%) Marketing
5 14 (2.61%) Publishing
6 12 (2.24%) Pharmaceutical
7 9 (1.68%) Investment Banking
8 8 (1.49%) Legal
9 7 (1.31%) Financial Institution
10 6 (1.12%) Law
10 6 (1.12%) Private Banking
10 6 (1.12%) Retail Banking
11 3 (0.56%) Games
11 3 (0.56%) Manufacturing
11 3 (0.56%) Telecoms
12 2 (0.37%) Advertising
12 2 (0.37%) Back Office
12 2 (0.37%) French Language
12 2 (0.37%) Front Office
12 2 (0.37%) Multimedia
Job Titles
1 144 (26.87%) Analyst
2 97 (18.10%) Developer
3 89 (16.60%) Data Analyst
4 79 (14.74%) Data Engineer
5 73 (13.62%) Architect
6 56 (10.45%) Hadoop Engineer
7 41 (7.65%) Data Architect
8 28 (5.22%) Big Data Engineer
9 27 (5.04%) Data Manager
10 25 (4.66%) Project Manager
11 24 (4.48%) Consultant
12 21 (3.92%) Solutions Architect
13 20 (3.73%) Business Analyst
13 20 (3.73%) Business Intelligence Analyst
14 16 (2.99%) Data Quality Analyst
14 16 (2.99%) SQL Developer
15 15 (2.80%) Data Migration Manager
15 15 (2.80%) Migration Manager
16 14 (2.61%) Big Data Developer
16 14 (2.61%) Data Consultant
Libraries, Frameworks & Software Standards
1 93 (17.35%) Kafka
2 45 (8.40%) XML
3 38 (7.09%) REST
4 29 (5.41%) HTML
5 21 (3.92%) HTML5
6 18 (3.36%) JSON
7 14 (2.61%) .NET
7 14 (2.61%) CSS
8 12 (2.24%) SOAP
9 9 (1.68%) JMS
9 9 (1.68%) Natural Language Processing
10 8 (1.49%) Ajax
10 8 (1.49%) Web Services
10 8 (1.49%) XHTML
11 7 (1.31%) RESTful
12 6 (1.12%) MDX
13 5 (0.93%) jQuery
13 5 (0.93%) React
13 5 (0.93%) XML Schema
14 4 (0.75%) AngularJS
Miscellaneous
1 99 (18.47%) Analytical Skills
2 36 (6.72%) Reference Data
3 33 (6.16%) Management Information System
4 27 (5.04%) Computer Science
5 18 (3.36%) Data Structures
6 17 (3.17%) Hedge funds
7 14 (2.61%) Mainframe
8 13 (2.43%) NHS
9 11 (2.05%) Credit Risk
10 10 (1.87%) Greenfield Project
10 10 (1.87%) Self-Motivation
11 9 (1.68%) Algorithms
12 8 (1.49%) CMDB
13 7 (1.31%) Data Centre
13 7 (1.31%) Derivative
13 7 (1.31%) Fixed Income
14 6 (1.12%) Equities
14 6 (1.12%) Taxonomies
15 5 (0.93%) Equity Derivative
15 5 (0.93%) Equity Risk
Operating Systems
1 28 (5.22%) Linux
2 7 (1.31%) Unix
3 4 (0.75%) Windows
Processes & Methodologies
1 171 (31.90%) Data Modelling
2 160 (29.85%) Analytics
3 112 (20.90%) Migration
4 107 (19.96%) ETL
5 103 (19.22%) Agile Software Development
6 101 (18.84%) Business Intelligence
7 97 (18.10%) Data Governance
8 90 (16.79%) Data Migration
9 82 (15.30%) Data Analysis
9 82 (15.30%) Data Science
10 72 (13.43%) Data Management
11 66 (12.31%) Machine Learning
12 63 (11.75%) Data Architecture
13 61 (11.38%) Data Integration
14 60 (11.19%) Visualisation
15 57 (10.63%) Problem-Solving
16 48 (8.96%) SQL Optimisation
17 47 (8.77%) Quality Management
18 42 (7.84%) Master Data Management
19 40 (7.46%) Data Visualisation
Programming Languages
1 233 (43.47%) SQL
2 75 (13.99%) Python
3 58 (10.82%) Java
4 32 (5.97%) C#
5 29 (5.41%) R
6 22 (4.10%) Scala
7 21 (3.92%) T-SQL
7 21 (3.92%) VBA
8 20 (3.73%) JavaScript
9 14 (2.61%) Natural
9 14 (2.61%) PL/SQL
10 13 (2.43%) C++
11 12 (2.24%) MATLAB
12 11 (2.05%) C
13 9 (1.68%) Bash Shell
14 8 (1.49%) Perl
15 5 (0.93%) VB.NET
16 4 (0.75%) Apex Code
16 4 (0.75%) ES6
17 3 (0.56%) Shell Script
Qualifications
1 47 (8.77%) Security Cleared
2 46 (8.58%) Degree
3 37 (6.90%) SC Cleared
4 17 (3.17%) Computer Science Degree
5 11 (2.05%) DV Cleared
6 9 (1.68%) PhD
7 8 (1.49%) ITIL Certification
8 5 (0.93%) BPSS Clearance
8 5 (0.93%) DBS Check
9 2 (0.37%) Six Sigma Black Belt
10 1 (0.19%) CISM
10 1 (0.19%) CISSP
10 1 (0.19%) CTC Cleared
10 1 (0.19%) ISEB
10 1 (0.19%) Master's Degree
10 1 (0.19%) Numerate Degree
10 1 (0.19%) PRINCE2 Certification
10 1 (0.19%) PRINCE2 Practitioner
10 1 (0.19%) TOGAF Certification
Quality Assurance & Compliance
1 25 (4.66%) SLA
2 21 (3.92%) QA
3 18 (3.36%) GDPR
4 4 (0.75%) IFRS
4 4 (0.75%) PMO
5 3 (0.56%) HL7
5 3 (0.56%) IFRS 9
5 3 (0.56%) ISO/IEC 27001
5 3 (0.56%) Solvency II
6 2 (0.37%) Basel II
7 1 (0.19%) MiFID
7 1 (0.19%) PCI DSS
7 1 (0.19%) SEPA
System Software
1 14 (2.61%) Apache Flume
2 8 (1.49%) Virtual Machines
3 4 (0.75%) HDFS
4 3 (0.56%) Docker
5 2 (0.37%) Active Directory
6 1 (0.19%) Oracle RAC
Systems Management
1 60 (11.19%) Oozie
2 10 (1.87%) Terraform
3 6 (1.12%) Consul
3 6 (1.12%) Packer
4 5 (0.93%) Ansible
5 3 (0.56%) Ambari
5 3 (0.56%) Hadoop YARN
5 3 (0.56%) Single Sign-On
6 2 (0.37%) Failover Clustering
6 2 (0.37%) Kibana
6 2 (0.37%) Microsoft Clustering
7 1 (0.19%) Grafana
Vendors
1 61 (11.38%) Oracle
2 51 (9.51%) Microsoft
3 34 (6.34%) SAP
4 31 (5.78%) Tableau
5 28 (5.22%) Talend
6 21 (3.92%) Informatica
7 19 (3.54%) Hortonworks
8 17 (3.17%) Google
9 15 (2.80%) IBM
9 15 (2.80%) Teradata
10 14 (2.61%) Software AG
11 13 (2.43%) Alteryx
11 13 (2.43%) Cloudera
11 13 (2.43%) ServiceNow
12 11 (2.05%) Ab Initio
13 9 (1.68%) Salesforce.com
14 8 (1.49%) Remedy
15 7 (1.31%) Cognos
16 6 (1.12%) Sybase
17 5 (0.93%) Hyperion