The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Data Transformation skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Data Transformation over the 3 months to 26 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 Transformation
London / City of London
3 months to
26 Jun 2017
Same period 2016 Same period 2015
Rank 159 152 187
Rank change year-on-year -7 +35  
Contract jobs citing Data Transformation 10 13 19
As % of all contract IT jobs advertised in the City of London 0.30% 0.39% 0.33%
As % of the Processes & Methodologies category 0.34% 0.46% 0.40%
Number of daily rates quoted 10 8 12
Median daily rate £485 £455 £475
Median daily rate % change year-on-year +6.59% -4.21%  
90% offered a daily rate of more than £473 £435 £384
10% offered a daily rate of more than £600 £513 £680
UK excluding London median daily rate £450 £425 £363
% change year-on-year +5.88% +17.24%  
Number of hourly rates quoted 0 0 1
Median hourly rate - - £19.72
UK excluding London median hourly rate £51.00 - -

Data Transformation is in the process and methodology 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 process and methodology skills.

Contract Process & Methodology Skills
City of London
Contract job vacancies with a requirement for process and methodology skills 2925 2856 4712
As % of all contract IT job vacancies advertised in the City of London 88.16% 85.89% 81.13%
Number of daily rates quoted 2250 2341 3708
Median daily rate £500 £475 £468
Median daily rate % change year-on-year +5.26% +1.60%  
90% offered a daily rate of more than £350 £335 £325
10% offered a daily rate of more than £650 £625 £625
UK excluding London median daily rate £415 £400 £380
% change year-on-year +3.75% +5.26%  
Number of hourly rates quoted 23 23 56
Median hourly rate £20.00 £19.00 £24.50
Median hourly rate % change year-on-year +5.26% -22.44%  
90% offered a hourly rate of more than £14.75 £12.50 £15.07
10% offered a hourly rate of more than £41.00 £35.20 £55.50
UK excluding London median hourly rate £34.00 £28.50 £30.00
% change year-on-year +19.29% -5.00%  

Data Transformation
Job Vacancy Trend in the City of London

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

Job vacancy trend for Data Transformation in the City of London

Data Transformation
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 Transformation in the City of London.

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

Data Transformation
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Data Transformation in the City of London over the 3 months to 26 June 2017.

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

Data Transformation
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 Transformation in the City of London.

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

For the 6 months to 26 June 2017, IT contractor jobs citing Data Transformation 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 Transformation.

1 10 (52.63%) SQL
2 9 (47.37%) Data Quality
2 9 (47.37%) Relational Database
3 8 (42.11%) Agile Software Development
4 6 (31.58%) Data Management
4 6 (31.58%) Management Information System
4 6 (31.58%) Business Intelligence
4 6 (31.58%) Oracle
4 6 (31.58%) Data Modelling
4 6 (31.58%) Analytics
4 6 (31.58%) R
5 5 (26.32%) NoSQL
5 5 (26.32%) Dimensional Modelling
5 5 (26.32%) Predictive Modelling
5 5 (26.32%) Degree
5 5 (26.32%) Data Analytics
5 5 (26.32%) Data Structures
5 5 (26.32%) SDLC
5 5 (26.32%) ETL
5 5 (26.32%) Python
5 5 (26.32%) Data Warehouse
5 5 (26.32%) C++
5 5 (26.32%) Sybase
5 5 (26.32%) DB2
5 5 (26.32%) Teradata
5 5 (26.32%) Finance
5 5 (26.32%) Netezza
6 4 (21.05%) Data Enrichment
6 4 (21.05%) Data Acquisition
6 4 (21.05%) RDBMS

Data Transformation
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 (5.26%) Apache
1 1 (5.26%) Apache Spark
1 1 (5.26%) Cloud Foundry
1 1 (5.26%) Confluence
1 1 (5.26%) Elasticsearch
1 1 (5.26%) IPython
1 1 (5.26%) Jupyter
Applications
1 1 (5.26%) SPSS
Business Applications
1 1 (5.26%) SAP Oil and Gas
Cloud Services
1 2 (10.53%) Amazon AWS
2 1 (5.26%) Bluemix
2 1 (5.26%) GitHub
2 1 (5.26%) IBM Cloud
2 1 (5.26%) SoftLayer
Communications & Networking
1 2 (10.53%) Firewall
2 1 (5.26%) FTP
Database & Business Intelligence
1 9 (47.37%) Relational Database
2 5 (26.32%) Data Warehouse
2 5 (26.32%) DB2
2 5 (26.32%) NoSQL
3 4 (21.05%) RDBMS
4 2 (10.53%) Big Data
4 2 (10.53%) QlikView
5 1 (5.26%) Apache Hive
5 1 (5.26%) Data Lake
5 1 (5.26%) Flink
5 1 (5.26%) Hadoop
5 1 (5.26%) MongoDB
5 1 (5.26%) Oracle Database
5 1 (5.26%) PostgreSQL
5 1 (5.26%) Presto
5 1 (5.26%) SQL Server
Development Applications
1 1 (5.26%) Git (software)
1 1 (5.26%) GoCD
1 1 (5.26%) JIRA
1 1 (5.26%) Vagrant
General
1 5 (26.32%) Finance
2 2 (10.53%) Banking
2 2 (10.53%) Front Office
2 2 (10.53%) Marketing
3 1 (5.26%) Electronics
3 1 (5.26%) Manufacturing
3 1 (5.26%) Retail
3 1 (5.26%) Telecoms
Job Titles
1 8 (42.11%) Analyst
2 6 (31.58%) Data Analyst
3 5 (26.32%) Data Engineer
3 5 (26.32%) Developer
4 4 (21.05%) ETL Developer
5 3 (15.79%) Architect
5 3 (15.79%) Data Architect
5 3 (15.79%) Lead Data Architect
6 2 (10.53%) Business Analyst
6 2 (10.53%) Business Data Analyst
6 2 (10.53%) FX Business Analyst
7 1 (5.26%) .NET Developer
7 1 (5.26%) Murex Business Analyst
7 1 (5.26%) Oracle Analyst
7 1 (5.26%) Project Manager
7 1 (5.26%) Risk Manager
7 1 (5.26%) Senior .NET Developer
7 1 (5.26%) Senior Analyst
7 1 (5.26%) Senior C# Developer
7 1 (5.26%) Senior Developer
Libraries, Frameworks & Software Standards
1 2 (10.53%) D3.js
2 1 (5.26%) .NET
2 1 (5.26%) .NET Framework
2 1 (5.26%) Entity Framework
2 1 (5.26%) Kafka
2 1 (5.26%) Middleware
2 1 (5.26%) Node.js
2 1 (5.26%) Velocity
2 1 (5.26%) Web Services
2 1 (5.26%) XSLT
Miscellaneous
1 6 (31.58%) Management Information System
2 5 (26.32%) Data Structures
3 2 (10.53%) Foreign Exchange (FX)
4 1 (5.26%) Algorithms
4 1 (5.26%) Analytical Skills
4 1 (5.26%) Virtual Team
Operating Systems
1 3 (15.79%) Linux
2 1 (5.26%) Unix
2 1 (5.26%) Windows
Processes & Methodologies
1 8 (42.11%) Agile Software Development
2 6 (31.58%) Analytics
2 6 (31.58%) Business Intelligence
2 6 (31.58%) Data Management
2 6 (31.58%) Data Modelling
3 5 (26.32%) Data Analytics
3 5 (26.32%) Dimensional Modelling
3 5 (26.32%) ETL
3 5 (26.32%) Predictive Modelling
3 5 (26.32%) SDLC
4 4 (21.05%) Data Acquisition
4 4 (21.05%) Data Enrichment
4 4 (21.05%) Data Extraction
5 2 (10.53%) B2B
5 2 (10.53%) Business Analysis
5 2 (10.53%) DevOps
5 2 (10.53%) Digital Marketing
5 2 (10.53%) Migration
5 2 (10.53%) Straight-Through Processing
5 2 (10.53%) Visualisation
Programming Languages
1 10 (52.63%) SQL
2 6 (31.58%) R
3 5 (26.32%) C++
3 5 (26.32%) Python
4 1 (5.26%) C#
4 1 (5.26%) Java
4 1 (5.26%) PowerShell
4 1 (5.26%) Scala
4 1 (5.26%) T-SQL
Qualifications
1 5 (26.32%) Degree
2 1 (5.26%) SC Cleared
2 1 (5.26%) Security Cleared
Quality Assurance & Compliance
1 9 (47.37%) Data Quality
System Software
1 1 (5.26%) Apache Flume
Systems Management
1 1 (5.26%) Ansible
Vendors
1 6 (31.58%) Oracle
2 5 (26.32%) Netezza
2 5 (26.32%) Sybase
2 5 (26.32%) Teradata
3 2 (10.53%) Splunk
3 2 (10.53%) Tableau
4 1 (5.26%) Informatica
4 1 (5.26%) Microsoft
4 1 (5.26%) Murex
4 1 (5.26%) SAP