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 25 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.

3 months to
25 Mar 2017
Same period 2016 Same period 2015
Data Transformation
London / City of London
Rank 146 155 177
Rank change year-on-year +9 +22  
Contract jobs citing Data Transformation 9 4 18
As % of all contract IT jobs advertised in the City of London 0.30% 0.12% 0.36%
As % of the Processes & Methodologies category 0.35% 0.14% 0.43%
Number of daily rates quoted 3 4 13
Median daily rate £575 £538 £475
Median daily rate % change year-on-year +6.97% +13.15%  
90% offered a daily rate of more than £475 £388 £413
10% offered a daily rate of more than £675 £593 £715
UK excluding London median daily rate £400 £450 £365
% change year-on-year -11.11% +23.28%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - £25.05

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 2590 2921 4181
As % of all contract IT job vacancies advertised in the City of London 85.48% 87.82% 82.55%
Number of daily rates quoted 2034 2334 3226
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 £345 £325 £313
10% offered a daily rate of more than £625 £625 £625
UK excluding London median daily rate £410 £400 £400
% change year-on-year +2.50% +0.06%  
Number of hourly rates quoted 22 27 36
Median hourly rate £16.00 £20.89 £20.45
Median hourly rate % change year-on-year -23.40% +2.17%  
90% offered a hourly rate of more than £13.50 £14.20 £12.50
10% offered a hourly rate of more than £28.35 £47.50 £92.50
UK excluding London median hourly rate £36.00 £38.75 £30.00
% change year-on-year -7.09% +29.16%  

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 25 March 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 hourly rates quoted in IT contractor jobs citing Data Transformation in the City of London.

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

Data Transformation
Top 30 Related IT Skills in the City of London

For the 6 months to 25 March 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 17 (73.91%) SQL
2 16 (69.57%) Data Quality
3 14 (60.87%) Relational Database
4 13 (56.52%) R
4 13 (56.52%) Data Warehouse
5 12 (52.17%) Python
5 12 (52.17%) Data Modelling
5 12 (52.17%) Business Intelligence
5 12 (52.17%) SDLC
6 11 (47.83%) Data Management
7 10 (43.48%) Netezza
7 10 (43.48%) Degree
7 10 (43.48%) Teradata
7 10 (43.48%) C++
7 10 (43.48%) Oracle
7 10 (43.48%) Sybase
7 10 (43.48%) DB2
7 10 (43.48%) Data Structures
7 10 (43.48%) NoSQL
7 10 (43.48%) Predictive Modelling
7 10 (43.48%) Dimensional Modelling
8 8 (34.78%) ETL
8 8 (34.78%) Agile Software Development
9 5 (21.74%) Analytics
10 4 (17.39%) RDBMS
10 4 (17.39%) Management Information System
10 4 (17.39%) Data Acquisition
10 4 (17.39%) Data Enrichment
10 4 (17.39%) Data Analytics
10 4 (17.39%) Data Extraction

Data Transformation
Top Related 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 3 (13.04%) Apache Spark
2 1 (4.35%) Apache
2 1 (4.35%) Elasticsearch
2 1 (4.35%) IPython
2 1 (4.35%) Jupyter
Applications
1 1 (4.35%) MS Excel
1 1 (4.35%) MS Office
1 1 (4.35%) SPSS
Business Applications
1 1 (4.35%) SAP ERP
Cloud Services
1 1 (4.35%) Amazon AWS
1 1 (4.35%) GitHub
Database & Business Intelligence
1 14 (60.87%) Relational Database
2 13 (56.52%) Data Warehouse
3 10 (43.48%) DB2
3 10 (43.48%) NoSQL
4 4 (17.39%) RDBMS
5 3 (13.04%) Big Data
6 2 (8.70%) BusinessObjects
6 2 (8.70%) BusinessObjects Business Intelligence
6 2 (8.70%) Data Lake
6 2 (8.70%) Enterprise Data Warehouse
6 2 (8.70%) Hadoop
7 1 (4.35%) Apache Hive
7 1 (4.35%) BusinessObjects Web Intelligence
7 1 (4.35%) Flink
7 1 (4.35%) Presto
7 1 (4.35%) SAP BW
7 1 (4.35%) SQL Server
7 1 (4.35%) SQL Server 2008
Development Applications
1 1 (4.35%) Git (software)
1 1 (4.35%) GoCD
1 1 (4.35%) JIRA
1 1 (4.35%) Vagrant
1 1 (4.35%) Visual Studio
General
1 1 (4.35%) Banking
1 1 (4.35%) Finance
1 1 (4.35%) Investment Banking
1 1 (4.35%) Marketing
1 1 (4.35%) Retail
Job Titles
1 13 (56.52%) Analyst
2 12 (52.17%) Data Analyst
3 7 (30.43%) SQL Analyst
3 7 (30.43%) SQL Data Analyst
4 6 (26.09%) Oracle Analyst
4 6 (26.09%) Teradata Analyst
5 5 (21.74%) Architect
5 5 (21.74%) Data Architect
5 5 (21.74%) Data Engineer
5 5 (21.74%) Developer
6 4 (17.39%) ETL Developer
6 4 (17.39%) Lead Data Architect
7 2 (8.70%) Data Scientist
7 2 (8.70%) ETL Analyst
7 2 (8.70%) Test Analyst
8 1 (4.35%) Big Data Architect
8 1 (4.35%) ERP Analyst
8 1 (4.35%) Risk Project Manager
8 1 (4.35%) Transformation Analyst
8 1 (4.35%) Workday Analyst
Libraries, Frameworks & Software Standards
1 2 (8.70%) Pandas
1 2 (8.70%) scikit-learn
2 1 (4.35%) Kafka
2 1 (4.35%) SAP CO-PA
2 1 (4.35%) Velocity
2 1 (4.35%) Web Services
Miscellaneous
1 10 (43.48%) Data Structures
2 4 (17.39%) Management Information System
3 3 (13.04%) Algorithms
4 2 (8.70%) Analytical Skills
4 2 (8.70%) Computer Science
4 2 (8.70%) Enterprise Software
Processes & Methodologies
1 12 (52.17%) Business Intelligence
1 12 (52.17%) Data Modelling
1 12 (52.17%) SDLC
2 11 (47.83%) Data Management
3 10 (43.48%) Dimensional Modelling
3 10 (43.48%) Predictive Modelling
4 8 (34.78%) Agile Software Development
4 8 (34.78%) ETL
5 5 (21.74%) Analytics
6 4 (17.39%) Data Acquisition
6 4 (17.39%) Data Analytics
6 4 (17.39%) Data Enrichment
6 4 (17.39%) Data Extraction
7 3 (13.04%) Data Architecture
7 3 (13.04%) Machine Learning
8 2 (8.70%) Anomaly Detection
8 2 (8.70%) Data Validation
8 2 (8.70%) Defect Management
8 2 (8.70%) Integration Testing
8 2 (8.70%) System Integration Testing
Programming Languages
1 17 (73.91%) SQL
2 13 (56.52%) R
3 12 (52.17%) Python
4 10 (43.48%) C++
5 3 (13.04%) Scala
6 1 (4.35%) T-SQL
Qualifications
1 10 (43.48%) Degree
2 1 (4.35%) ISTQB
Quality Assurance & Compliance
1 16 (69.57%) Data Quality
2 1 (4.35%) MiFID
System Software
1 1 (4.35%) Apache Flume
Systems Management
1 1 (4.35%) Ansible
Vendors
1 10 (43.48%) Netezza
1 10 (43.48%) Oracle
1 10 (43.48%) Sybase
1 10 (43.48%) Teradata
2 2 (8.70%) SAP
3 1 (4.35%) Microsoft
3 1 (4.35%) Workday
City, London
onezeero.
Rate: £400 - £500 per day
Posted: 2 days ago
City, London
People Source Consulting
Rate: £500 - £650 per day
Posted: 22 hours ago