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 3 months to 30 March 2017 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 / City of London
3 months to
30 Mar 2017
Same period 2016 Same period 2015
Rank 107 115 140
Rank change year-on-year +8 +25  
Contract jobs citing Data Quality 44 48 56
As % of all contract IT jobs advertised in the City of London 1.42% 1.41% 1.09%
As % of the Quality Assurance & Compliance category 9.65% 13.11% 10.39%
Number of daily rates quoted 31 31 42
Median daily rate £525 £463 £450
Median daily rate % change year-on-year +13.51% +2.77%  
90% offered a daily rate of more than £350 £350 £300
10% offered a daily rate of more than £675 £550 £621
UK excluding London median daily rate £425 £413 £400
% change year-on-year +3.03% +3.12%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £10.50 £15.00 £25.00
% change year-on-year -30.00% -40.00%  

Data Quality is in the quality assurance and compliance skills category. The next 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 and compliance skills.

Contract Quality Assurance & Compliance Skills
City of London
Contract job vacancies with a requirement for quality assurance and compliance skills 456 366 539
As % of all contract IT job vacancies advertised in the City of London 14.70% 10.75% 10.49%
Number of daily rates quoted 349 274 392
Median daily rate £519 £475 £445
Median daily rate % change year-on-year +9.21% +6.74%  
90% offered a daily rate of more than £328 £313 £275
10% offered a daily rate of more than £650 £625 £600
UK excluding London median daily rate £400 £400 £380
% change year-on-year - +5.26%  
Number of hourly rates quoted 6 3 1
Median hourly rate £13.75 £22.00 £19.14
Median hourly rate % change year-on-year -37.50% +14.97%  
UK excluding London median hourly rate £20.00 £40.00 £29.00
% change year-on-year -50.00% +37.93%  

Data Quality
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing Data Quality as a proportion of all contract or permanent IT jobs with a match in the Quality Assurance & Compliance category.

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 3 months to 30 March 2017.

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

For the 6 months to 30 March 2017, IT contractor jobs citing Data Quality also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the City of London region with a requirement for Data Quality.

1 63 (67.02%) SQL
2 57 (60.64%) Data Modelling
3 40 (42.55%) Data Warehouse
4 37 (39.36%) ETL
5 36 (38.30%) Data Management
6 30 (31.91%) Finance
7 25 (26.60%) Business Intelligence
8 23 (24.47%) Oracle
8 23 (24.47%) Data Analysis
9 21 (22.34%) Degree
10 18 (19.15%) Agile Software Development
10 18 (19.15%) Relational Database
11 17 (18.09%) Analytics
11 17 (18.09%) Python
12 15 (15.96%) Teradata
12 15 (15.96%) Data Transformation
12 15 (15.96%) R
13 14 (14.89%) Hadoop
13 14 (14.89%) Dimensional Modelling
14 12 (12.77%) Data Architecture
14 12 (12.77%) Data Structures
15 11 (11.70%) Big Data
15 11 (11.70%) Migration
15 11 (11.70%) Stakeholder Management
15 11 (11.70%) SQL Server
15 11 (11.70%) SDLC
16 10 (10.64%) Sybase
16 10 (10.64%) DB2
16 10 (10.64%) C++
16 10 (10.64%) MS Excel

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 7 (7.45%) Apache Pig
2 4 (4.26%) Apache Spark
2 4 (4.26%) SAS
2 4 (4.26%) SharePoint
3 2 (2.13%) Confluence
3 2 (2.13%) Oracle Workflow
4 1 (1.06%) Oracle HTTP Server
Applications
1 10 (10.64%) MS Excel
2 4 (4.26%) MS Office
2 4 (4.26%) MS Visio
3 2 (2.13%) MS PowerPoint
3 2 (2.13%) SPSS
Business Applications
1 2 (2.13%) Dynamics AX
1 2 (2.13%) Dynamics CRM
1 2 (2.13%) Oracle EBS
2 1 (1.06%) Cognos TM1
2 1 (1.06%) HFM
2 1 (1.06%) Hyperion Planning
2 1 (1.06%) Oracle iProcurement
2 1 (1.06%) SAP ERP
2 1 (1.06%) thinkFolio
Cloud Services
1 1 (1.06%) Adobe Analytics
1 1 (1.06%) Amazon AWS
1 1 (1.06%) Google Analytics
Communications & Networking
1 1 (1.06%) HTTP
Database & Business Intelligence
1 40 (42.55%) Data Warehouse
2 18 (19.15%) Relational Database
3 14 (14.89%) Hadoop
4 11 (11.70%) Big Data
4 11 (11.70%) SQL Server
5 10 (10.64%) BusinessObjects
5 10 (10.64%) Data Mining
5 10 (10.64%) DB2
6 9 (9.57%) NoSQL
7 8 (8.51%) Apache Hive
8 5 (5.32%) RDBMS
8 5 (5.32%) SQL Server Integration Services
8 5 (5.32%) SQL Server Reporting Services
9 4 (4.26%) Impala
9 4 (4.26%) MS Access
9 4 (4.26%) Oracle ODI
9 4 (4.26%) SQL Server Analysis Services
10 3 (3.19%) Oracle OWB
10 3 (3.19%) Snowflake Schema
11 2 (2.13%) OLAP
Development Applications
1 3 (3.19%) ERwin
2 2 (2.13%) JIRA
General
1 30 (31.91%) Finance
2 6 (6.38%) Banking
3 5 (5.32%) Retail
4 2 (2.13%) French Language
4 2 (2.13%) Front Office
4 2 (2.13%) Legal
5 1 (1.06%) Financial Institution
5 1 (1.06%) Law
5 1 (1.06%) Marketing
Job Titles
1 41 (43.62%) Analyst
2 31 (32.98%) Data Analyst
3 23 (24.47%) Architect
4 20 (21.28%) Data Architect
5 17 (18.09%) Developer
6 10 (10.64%) SQL Analyst
7 9 (9.57%) SQL Data Analyst
8 6 (6.38%) Business Analyst
9 5 (5.32%) Business Intelligence Analyst
9 5 (5.32%) Consultant
9 5 (5.32%) Data Engineer
9 5 (5.32%) ETL Developer
9 5 (5.32%) Oracle Analyst
9 5 (5.32%) Teradata Analyst
10 4 (4.26%) Big Data Architect
10 4 (4.26%) Business Developer
10 4 (4.26%) Data Scientist
10 4 (4.26%) Lead Data Architect
10 4 (4.26%) Systems Analyst
11 3 (3.19%) SAS Analyst
Libraries, Frameworks & Software Standards
1 3 (3.19%) FIX Protocol
2 2 (2.13%) MDX
3 1 (1.06%) FpML
3 1 (1.06%) HTML
3 1 (1.06%) Middleware
3 1 (1.06%) REST
3 1 (1.06%) SAP CO-PA
3 1 (1.06%) Web Services
3 1 (1.06%) XML
Miscellaneous
1 12 (12.77%) Data Structures
2 9 (9.57%) Management Information System
3 8 (8.51%) Analytical Skills
4 5 (5.32%) Computer Science
5 4 (4.26%) Algorithms
5 4 (4.26%) Credit Risk
5 4 (4.26%) Reference Data
6 3 (3.19%) Data Protection Act
7 1 (1.06%) Derivative
7 1 (1.06%) Enterprise Software
7 1 (1.06%) Equities
7 1 (1.06%) Fixed Income
7 1 (1.06%) Foreign Exchange (FX)
7 1 (1.06%) Market Risk
7 1 (1.06%) Mobile App
7 1 (1.06%) Replication
7 1 (1.06%) Virtual Team
Operating Systems
1 7 (7.45%) Unix
2 4 (4.26%) Windows
3 3 (3.19%) Windows Server
4 2 (2.13%) Linux
5 1 (1.06%) Oracle Linux
5 1 (1.06%) Red Hat Enterprise Linux
Processes & Methodologies
1 57 (60.64%) Data Modelling
2 37 (39.36%) ETL
3 36 (38.30%) Data Management
4 25 (26.60%) Business Intelligence
5 23 (24.47%) Data Analysis
6 18 (19.15%) Agile Software Development
7 17 (18.09%) Analytics
8 15 (15.96%) Data Transformation
9 14 (14.89%) Dimensional Modelling
10 12 (12.77%) Data Architecture
11 11 (11.70%) Migration
11 11 (11.70%) SDLC
11 11 (11.70%) Stakeholder Management
12 10 (10.64%) Data Governance
12 10 (10.64%) Predictive Modelling
12 10 (10.64%) Statistics
13 9 (9.57%) Data Cleansing
13 9 (9.57%) Data Migration
14 8 (8.51%) Data Acquisition
14 8 (8.51%) Project Management
Programming Languages
1 63 (67.02%) SQL
2 17 (18.09%) Python
3 15 (15.96%) R
4 10 (10.64%) C++
5 5 (5.32%) PL/SQL
6 4 (4.26%) Java
6 4 (4.26%) T-SQL
6 4 (4.26%) VBA
7 2 (2.13%) Scala
8 1 (1.06%) JavaScript
Qualifications
1 21 (22.34%) Degree
2 1 (1.06%) BPSS Clearance
2 1 (1.06%) ISTQB
2 1 (1.06%) Security Cleared
Quality Assurance & Compliance
1 8 (8.51%) Solvency II
2 4 (4.26%) MiFID
3 2 (2.13%) PMO
3 2 (2.13%) QA
4 1 (1.06%) Disclosure Scotland
4 1 (1.06%) ISO20022
Systems Management
1 3 (3.19%) Tivoli
2 2 (2.13%) Control-M
3 1 (1.06%) Oracle EDQ
Vendors
1 23 (24.47%) Oracle
2 15 (15.96%) Teradata
3 10 (10.64%) Netezza
3 10 (10.64%) Sybase
3 10 (10.64%) Tableau
4 9 (9.57%) Microsoft
5 8 (8.51%) SAP
6 3 (3.19%) Alteryx
6 3 (3.19%) Informatica
7 1 (1.06%) Adobe
7 1 (1.06%) Cognos
7 1 (1.06%) Fidessa
7 1 (1.06%) Google
7 1 (1.06%) Hyperion
7 1 (1.06%) IBM
7 1 (1.06%) MicroStrategy
7 1 (1.06%) Red Hat
7 1 (1.06%) Siebel
7 1 (1.06%) Trillium
7 1 (1.06%) WorldPay
City, London
Spring Technology
Posted: 23 hours ago
City of London
British Red Cross
Rate: £27000 per annum
Posted: 6 days ago
City, London
Cadence Resourcing
Rate: £600 - £675 per day
Posted: 6 days ago
City, London
Oliver Bernard
Rate: £500 - £550 per day
Posted: Yesterday