The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Data Mart skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Data Mart over the 3 months to 22 June 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 Mart
London / City of London
3 months to
22 Jun 2017
Same period 2016 Same period 2015
Rank 159 159 192
Rank change year-on-year 0 +33  
Contract jobs citing Data Mart 6 10 20
As % of all contract IT jobs advertised in the City of London 0.18% 0.29% 0.34%
As % of the Database & Business Intelligence category 0.69% 1.22% 1.33%
Number of daily rates quoted 5 9 7
Median daily rate £625 £600 £413
Median daily rate % change year-on-year +4.16% +45.45%  
90% offered a daily rate of more than £535 £478 £375
10% offered a daily rate of more than £685 £750 £430
UK excluding London median daily rate £475 £390 £375
% change year-on-year +21.79% +4.00%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

Data Mart is in the database and business intelligence 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 database and business intelligence skills.

Contract Database & Business Intelligence Skills
City of London
Contract job vacancies with a requirement for database and business intelligence skills 864 821 1499
As % of all contract IT job vacancies advertised in the City of London 26.21% 24.12% 25.79%
Number of daily rates quoted 678 654 1198
Median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.55%  
90% offered a daily rate of more than £375 £330 £325
10% offered a daily rate of more than £650 £625 £600
UK excluding London median daily rate £400 £388 £351
% change year-on-year +3.22% +10.55%  
Number of hourly rates quoted 2 5 7
Median hourly rate £21.50 £19.00 £30.00
Median hourly rate % change year-on-year +13.15% -36.66%  
UK excluding London median hourly rate £38.00 £31.27 £26.75
% change year-on-year +21.52% +16.89%  

Data Mart
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing Data Mart as a proportion of all contract or permanent IT jobs with a match in the Database & Business Intelligence category.

Job vacancy trend for Data Mart in the City of London

Data Mart
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 Mart in the City of London.

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

Data Mart
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Data Mart in the City of London over the 3 months to 22 June 2017.

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

Data Mart
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 Mart in the City of London.

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

For the 6 months to 22 June 2017, IT contractor jobs citing Data Mart 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 Mart.

1 10 (66.67%) Finance
1 10 (66.67%) Banking
2 9 (60.00%) SQL
2 9 (60.00%) Data Warehouse
3 7 (46.67%) Business Intelligence
4 5 (33.33%) ETL
4 5 (33.33%) SQL Server Integration Services
5 4 (26.67%) Murex MxML
5 4 (26.67%) Agile Software Development
5 4 (26.67%) Front Office
5 4 (26.67%) Murex
5 4 (26.67%) RDBMS
5 4 (26.67%) Oracle
5 4 (26.67%) SQL Server
5 4 (26.67%) Relational Database
6 3 (20.00%) Waterfall
6 3 (20.00%) Cognos Framework Manager
6 3 (20.00%) Data Modelling
6 3 (20.00%) Cognos
6 3 (20.00%) XSLT
6 3 (20.00%) Linux
6 3 (20.00%) .NET
6 3 (20.00%) Microsoft
6 3 (20.00%) Cognos Business Intelligence
7 2 (13.33%) SQL Server Analysis Services
7 2 (13.33%) SQL Server 2008
7 2 (13.33%) Git (software)
7 2 (13.33%) Visualisation
7 2 (13.33%) SQL Server Reporting Services
7 2 (13.33%) Subversion

Data Mart
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 1 (6.67%) SAS
1 1 (6.67%) SharePoint
Applications
1 1 (6.67%) Microsoft Excel
Business Applications
1 3 (20.00%) Cognos Business Intelligence
Database & Business Intelligence
1 9 (60.00%) Data Warehouse
2 5 (33.33%) SQL Server Integration Services
3 4 (26.67%) RDBMS
3 4 (26.67%) Relational Database
3 4 (26.67%) SQL Server
4 3 (20.00%) Cognos Framework Manager
5 2 (13.33%) SQL Server 2008
5 2 (13.33%) SQL Server 2014
5 2 (13.33%) SQL Server Analysis Services
5 2 (13.33%) SQL Server Reporting Services
6 1 (6.67%) Big Data
6 1 (6.67%) Data Lake
6 1 (6.67%) MarkLogic
6 1 (6.67%) Microsoft Analysis Services
6 1 (6.67%) Power BI
6 1 (6.67%) SAS EBI
6 1 (6.67%) SQL Server 2012
Development Applications
1 2 (13.33%) Git (software)
1 2 (13.33%) Subversion
2 1 (6.67%) ERwin
2 1 (6.67%) JIRA
2 1 (6.67%) Talend Open Studio
2 1 (6.67%) Visual Studio
General
1 10 (66.67%) Banking
1 10 (66.67%) Finance
2 4 (26.67%) Front Office
3 2 (13.33%) Back Office
4 1 (6.67%) Legal
Job Titles
1 11 (73.33%) Developer
2 5 (33.33%) Senior Developer
3 4 (26.67%) Business Intelligence Developer
3 4 (26.67%) Murex Developer
4 3 (20.00%) Cognos BI Developer
4 3 (20.00%) Cognos Developer
4 3 (20.00%) Integration Developer
4 3 (20.00%) Senior Murex Developer
4 3 (20.00%) SQL Developer
4 3 (20.00%) SQL Server Developer
5 2 (13.33%) Architect
5 2 (13.33%) Data Architect
5 2 (13.33%) Senior SQL Developer
5 2 (13.33%) Senior SQL Server Developer
6 1 (6.67%) .NET Developer
6 1 (6.67%) Data Modeller
6 1 (6.67%) Data Warehouse Architect
6 1 (6.67%) Murex MxML Developer
6 1 (6.67%) SQL Server BI Developer
6 1 (6.67%) Team Leader
Libraries, Frameworks & Software Standards
1 4 (26.67%) Murex MxML
2 3 (20.00%) .NET
2 3 (20.00%) XSLT
3 2 (13.33%) XML
4 1 (6.67%) Web Services
4 1 (6.67%) XSL
Miscellaneous
1 1 (6.67%) Analytical Skills
1 1 (6.67%) Data Structures
Operating Systems
1 3 (20.00%) Linux
Processes & Methodologies
1 7 (46.67%) Business Intelligence
2 5 (33.33%) ETL
3 4 (26.67%) Agile Software Development
4 3 (20.00%) Data Modelling
4 3 (20.00%) Waterfall
5 2 (13.33%) Visualisation
6 1 (6.67%) Analytics
6 1 (6.67%) Data Analysis
6 1 (6.67%) Data Cleansing
6 1 (6.67%) Data Flow Diagram
6 1 (6.67%) Data Governance
6 1 (6.67%) Data Integration
6 1 (6.67%) Dimensional Modelling
6 1 (6.67%) ETL Development
6 1 (6.67%) Kimball Methodology
6 1 (6.67%) Migration
6 1 (6.67%) Performance Tuning
6 1 (6.67%) SDLC
6 1 (6.67%) Stakeholder Management
6 1 (6.67%) Supplier Management
Programming Languages
1 9 (60.00%) SQL
2 2 (13.33%) T-SQL
3 1 (6.67%) C
3 1 (6.67%) C#
3 1 (6.67%) Korn
3 1 (6.67%) PL/SQL
3 1 (6.67%) Shell Script
System Software
1 1 (6.67%) Oracle RAC
Vendors
1 4 (26.67%) Murex
1 4 (26.67%) Oracle
2 3 (20.00%) Cognos
2 3 (20.00%) Microsoft
3 2 (13.33%) Informatica
4 1 (6.67%) Cisco
4 1 (6.67%) IBM
4 1 (6.67%) Sybase
4 1 (6.67%) Talend
4 1 (6.67%) Teradata