Period
to 19 July 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 19 July 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
19 Jul 2018
Same period 2017 Same period 2016
Rank 185 163 165
Rank change year-on-year -22 +2 +10
Contract jobs citing Data Quality 69 80 75
As % of all contract IT jobs advertised in the City of London 0.98% 1.24% 1.09%
As % of the Quality Assurance & Compliance category 8.70% 8.42% 9.84%
Number of daily rates quoted 46 62 56
City of London median daily rate £475 £500 £469
Median daily rate % change year-on-year -5.00% +6.67% +4.17%
10th Percentile £225 £357 £356
90th Percentile £659 £675 £619
Central London median daily rate £548 £500 £475
% change year-on-year +9.50% +5.26% +2.70%
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 793 950 762
As % of all contract IT jobs advertised in the City of London 11.26% 14.74% 11.12%
Number of daily rates quoted 583 711 588
City of London median daily rate £475 £500 £475
Median daily rate % change year-on-year -5.00% +5.26% +5.56%
10th Percentile £310 £319 £306
90th Percentile £675 £675 £632
Central London median daily rate £495 £500 £450
% change year-on-year -1.00% +11.11% -
Number of hourly rates quoted 9 14 4
City of London median hourly rate £18.70 £14.93 £21.00
Median hourly rate % change year-on-year +25.29% -28.93% +18.38%
10th Percentile £13.52 £13.06 £18.95
90th Percentile £62.75 £30.35 £67.23
Central London median hourly rate £20.10 £14.80 £21.00
% change year-on-year +35.81% -29.52% +25.37%

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 19 July 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 19 July 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
Moorgate - 1 £450 -
Data Quality
Central London

For the 6 months to 19 July 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 27 (39.13%) SQL
2 21 (30.43%) ETL
3 20 (28.99%) Business Intelligence
4 19 (27.54%) Finance
5 18 (26.09%) Data Modelling
6 17 (24.64%) SQL Server
6 17 (24.64%) Analytics
7 16 (23.19%) Data Governance
8 14 (20.29%) Migration
8 14 (20.29%) Data Management
8 14 (20.29%) Data Warehouse
8 14 (20.29%) Python
9 13 (18.84%) Agile Software Development
9 13 (18.84%) Visualisation
9 13 (18.84%) Analytical Skills
9 13 (18.84%) Power BI
10 12 (17.39%) SQL Server Integration Services
11 11 (15.94%) Relational Database
12 10 (14.49%) T-SQL
13 9 (13.04%) Data Science
13 9 (13.04%) Problem-Solving
14 8 (11.59%) Microsoft Excel
14 8 (11.59%) XML
14 8 (11.59%) Data Analysis
14 8 (11.59%) Tableau
14 8 (11.59%) Data Cleansing
15 7 (10.14%) Hadoop
15 7 (10.14%) SQL Server Analysis Services
15 7 (10.14%) HBase
15 7 (10.14%) Big Data

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 5 (7.25%) SharePoint
2 4 (5.80%) Apache
3 3 (4.35%) Elasticsearch
3 3 (4.35%) SAS
4 1 (1.45%) Apache Spark
4 1 (1.45%) WordPress
Applications
1 8 (11.59%) Microsoft Excel
2 2 (2.90%) Spreadsheet
3 1 (1.45%) Microsoft Office
3 1 (1.45%) Microsoft PowerPoint
3 1 (1.45%) MS Visio
Business Applications
1 1 (1.45%) NetSuite
1 1 (1.45%) PeopleSoft HCM
Cloud Services
1 6 (8.70%) Amazon AWS
2 4 (5.80%) Microsoft Azure
3 3 (4.35%) Google Analytics
3 3 (4.35%) Google Cloud Platform
3 3 (4.35%) Google Tag Manager
4 1 (1.45%) AdWords
4 1 (1.45%) Amazon S3
4 1 (1.45%) Office 365
4 1 (1.45%) SaaS
Database & Business Intelligence
1 17 (24.64%) SQL Server
2 14 (20.29%) Data Warehouse
3 13 (18.84%) Power BI
4 12 (17.39%) SQL Server Integration Services
5 11 (15.94%) Relational Database
6 7 (10.14%) Big Data
6 7 (10.14%) Hadoop
6 7 (10.14%) HBase
6 7 (10.14%) SQL Server Analysis Services
7 6 (8.70%) NoSQL
7 6 (8.70%) SQL Server Reporting Services
8 5 (7.25%) SQL Server 2016
9 4 (5.80%) Enterprise Data Warehouse
9 4 (5.80%) Microsoft Analysis Services
9 4 (5.80%) MongoDB
10 3 (4.35%) Apache Cassandra
10 3 (4.35%) BigQuery
10 3 (4.35%) Sqoop
11 2 (2.90%) PostgreSQL
11 2 (2.90%) PowerCenter
Development Applications
1 6 (8.70%) Git (software)
2 5 (7.25%) Jenkins
2 5 (7.25%) Subversion
3 2 (2.90%) PowerDesigner
3 2 (2.90%) Visual Studio Team System
4 1 (1.45%) Bundler
4 1 (1.45%) RStudio
4 1 (1.45%) Team Foundation Server
4 1 (1.45%) Visual Studio
4 1 (1.45%) VSS/SourceSafe
General
1 19 (27.54%) Finance
2 6 (8.70%) Marketing
3 3 (4.35%) Retail
4 2 (2.90%) Financial Institution
4 2 (2.90%) Law
4 2 (2.90%) Legal
5 1 (1.45%) Banking
5 1 (1.45%) Games
Job Titles
1 18 (26.09%) Analyst
2 16 (23.19%) Developer
3 12 (17.39%) Data Analyst
4 6 (8.70%) Consultant
4 6 (8.70%) Data Engineer
4 6 (8.70%) SQL Developer
5 4 (5.80%) Data Manager
5 4 (5.80%) Data Scientist
5 4 (5.80%) Python Engineer
5 4 (5.80%) SSIS Developer
6 3 (4.35%) Architect
6 3 (4.35%) Big Data Developer
6 3 (4.35%) Business Intelligence Developer
6 3 (4.35%) Data Consultant
6 3 (4.35%) Data Governance Specialist
6 3 (4.35%) Information Analyst
6 3 (4.35%) SQL Server Developer
6 3 (4.35%) SSAS Developer
6 3 (4.35%) T-SQL Developer
6 3 (4.35%) Web Analyst
Libraries, Frameworks & Software Standards
1 8 (11.59%) XML
2 7 (10.14%) Kafka
3 4 (5.80%) Natural Language Processing
4 3 (4.35%) JMS
4 3 (4.35%) jQuery
4 3 (4.35%) JSON
4 3 (4.35%) REST
4 3 (4.35%) SOAP
5 1 (1.45%) CSS
5 1 (1.45%) D3.js
5 1 (1.45%) LAMP
5 1 (1.45%) LAPP Stack
5 1 (1.45%) OpenNLP
5 1 (1.45%) RabbitMQ
5 1 (1.45%) React
5 1 (1.45%) Struts
Miscellaneous
1 13 (18.84%) Analytical Skills
2 7 (10.14%) Data Structures
3 5 (7.25%) Management Information System
4 4 (5.80%) Fixed Income
5 3 (4.35%) Algorithms
5 3 (4.35%) Reference Data
6 2 (2.90%) Equities
6 2 (2.90%) Greenfield Project
6 2 (2.90%) Mobile App
6 2 (2.90%) NHS
6 2 (2.90%) Replication
7 1 (1.45%) Mainframe
7 1 (1.45%) Self-Motivation
7 1 (1.45%) Taxonomies
Operating Systems
1 5 (7.25%) Linux
Processes & Methodologies
1 21 (30.43%) ETL
2 20 (28.99%) Business Intelligence
3 18 (26.09%) Data Modelling
4 17 (24.64%) Analytics
5 16 (23.19%) Data Governance
6 14 (20.29%) Data Management
6 14 (20.29%) Migration
7 13 (18.84%) Agile Software Development
7 13 (18.84%) Visualisation
8 9 (13.04%) Data Science
8 9 (13.04%) Problem-Solving
9 8 (11.59%) Data Analysis
9 8 (11.59%) Data Cleansing
10 7 (10.14%) Project Management
11 6 (8.70%) Data Architecture
11 6 (8.70%) Data Security
11 6 (8.70%) Decision-Making
11 6 (8.70%) Mentoring
11 6 (8.70%) Translating Business Requirements
12 5 (7.25%) Logical Data Model
Programming Languages
1 27 (39.13%) SQL
2 14 (20.29%) Python
3 10 (14.49%) T-SQL
4 5 (7.25%) Java
4 5 (7.25%) R
5 4 (5.80%) JavaScript
6 3 (4.35%) Bash Shell
6 3 (4.35%) MATLAB
7 2 (2.90%) C#
8 1 (1.45%) C
8 1 (1.45%) ES6
8 1 (1.45%) HiveQL
8 1 (1.45%) Natural
8 1 (1.45%) PL/SQL
8 1 (1.45%) Scala
8 1 (1.45%) Shell Script
8 1 (1.45%) VBA
Qualifications
1 6 (8.70%) Degree
1 6 (8.70%) Security Cleared
2 4 (5.80%) PhD
3 3 (4.35%) SC Cleared
4 2 (2.90%) DV Cleared
5 1 (1.45%) BPSS Clearance
5 1 (1.45%) DBS Check
Quality Assurance & Compliance
1 6 (8.70%) QA
2 3 (4.35%) GDPR
2 3 (4.35%) SLA
3 1 (1.45%) Solvency II
System Software
1 3 (4.35%) Apache Flume
2 2 (2.90%) Docker
Systems Management
1 1 (1.45%) Grafana
1 1 (1.45%) Kibana
1 1 (1.45%) Terraform
Vendors
1 8 (11.59%) Tableau
2 6 (8.70%) Alteryx
2 6 (8.70%) Hortonworks
2 6 (8.70%) Microsoft
2 6 (8.70%) Oracle
3 4 (5.80%) Cloudera
3 4 (5.80%) Informatica
4 3 (4.35%) Google
4 3 (4.35%) Tealium
5 2 (2.90%) Talend
6 1 (1.45%) Ab Initio
6 1 (1.45%) BISAM
6 1 (1.45%) FactSet
6 1 (1.45%) GoldenSource
6 1 (1.45%) Marketo
6 1 (1.45%) Netezza
6 1 (1.45%) Salesforce.com
6 1 (1.45%) Splunk
6 1 (1.45%) Teradata
6 1 (1.45%) Workday