The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Data Mining skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Data Mining over the 3 months to 22 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
22 Mar 2017
Same period 2016 Same period 2015
Data Mining
London / City of London
Rank 144 134 162
Rank change year-on-year -10 +28  
Contract jobs citing Data Mining 7 17 30
As % of all contract IT jobs advertised in the City of London 0.24% 0.52% 0.60%
As % of the Database & Business Intelligence category 0.88% 1.87% 2.44%
Number of daily rates quoted 4 12 20
Median daily rate £531 £475 £463
Median daily rate % change year-on-year +11.84% +2.70%  
90% offered a daily rate of more than £411 £275 £286
10% offered a daily rate of more than £550 £581 £650
UK excluding London median daily rate £388 £375 £345
% change year-on-year +3.33% +8.69%  
Number of hourly rates quoted 0 1 0
Median hourly rate - £16.52 -
UK excluding London median hourly rate £21.00 £15.00 £25.00
% change year-on-year +40.00% -40.00%  

Data Mining 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 794 908 1229
As % of all contract IT job vacancies advertised in the City of London 26.73% 27.78% 24.56%
Number of daily rates quoted 629 731 951
Median daily rate £488 £475 £450
Median daily rate % change year-on-year +2.63% +5.55%  
90% offered a daily rate of more than £350 £338 £310
10% offered a daily rate of more than £625 £600 £588
UK excluding London median daily rate £395 £388 £375
% change year-on-year +1.93% +3.33%  
Number of hourly rates quoted 1 5 5
Median hourly rate £22.34 £19.00 £36.00
Median hourly rate % change year-on-year +17.55% -47.22%  
UK excluding London median hourly rate £30.25 £33.00 £32.50
% change year-on-year -8.33% +1.53%  

Data Mining
Job Vacancy Trend in the City of London

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

Job vacancy trend for Data Mining in the City of London

Data Mining
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 Mining in the City of London.

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

Data Mining
Contractor Daily Rate Histogram in the City of London

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

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

Data Mining
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 Mining in the City of London.

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

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

For the 6 months to 22 March 2017, IT contractor jobs citing Data Mining 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 Mining.

1 16 (61.54%) SQL
2 10 (38.46%) Data Management
2 10 (38.46%) Data Quality
3 9 (34.62%) Data Modelling
4 8 (30.77%) Business Intelligence
5 7 (26.92%) ETL
5 7 (26.92%) MS Excel
5 7 (26.92%) Data Warehouse
5 7 (26.92%) Data Analysis
5 7 (26.92%) R
5 7 (26.92%) Analytics
5 7 (26.92%) Analytical Skills
6 6 (23.08%) Tableau
6 6 (23.08%) Degree
6 6 (23.08%) Visualisation
6 6 (23.08%) Python
6 6 (23.08%) Oracle
6 6 (23.08%) Finance
7 5 (19.23%) Teradata
7 5 (19.23%) SQL Server
7 5 (19.23%) MS Office
7 5 (19.23%) SAS
7 5 (19.23%) Microsoft
7 5 (19.23%) SPSS
7 5 (19.23%) Data Integration
7 5 (19.23%) Computer Science
7 5 (19.23%) Agile Software Development
8 4 (15.38%) Retail
8 4 (15.38%) Statistics
8 4 (15.38%) Statistical Analysis

Data Mining
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 5 (19.23%) SAS
2 2 (7.69%) Apache Pig
3 1 (3.85%) Apache Spark
3 1 (3.85%) Confluence
3 1 (3.85%) Elasticsearch
Applications
1 7 (26.92%) MS Excel
2 5 (19.23%) MS Office
2 5 (19.23%) SPSS
3 2 (7.69%) Weka
Business Applications
1 1 (3.85%) RMDS
Cloud Services
1 3 (11.54%) Amazon AWS
1 3 (11.54%) IaaS
1 3 (11.54%) PaaS
Communications & Networking
1 3 (11.54%) DKIM
1 3 (11.54%) DMARC
1 3 (11.54%) Internet
1 3 (11.54%) SMTP
Database & Business Intelligence
1 7 (26.92%) Data Warehouse
2 5 (19.23%) SQL Server
3 4 (15.38%) Big Data
3 4 (15.38%) OLAP
3 4 (15.38%) QlikView
4 3 (11.54%) Apache Hive
4 3 (11.54%) BusinessObjects
4 3 (11.54%) MS Access
4 3 (11.54%) NoSQL
4 3 (11.54%) Oracle OLAP
5 2 (7.69%) Apache Cassandra
5 2 (7.69%) DataStage
5 2 (7.69%) Hadoop
5 2 (7.69%) HBase
5 2 (7.69%) MongoDB
5 2 (7.69%) Oracle BI EE
5 2 (7.69%) Pentaho
5 2 (7.69%) PowerPivot
5 2 (7.69%) Spotfire
5 2 (7.69%) SQL Server Integration Services
Development Applications
1 2 (7.69%) JIRA
2 1 (3.85%) Git (software)
General
1 6 (23.08%) Finance
2 4 (15.38%) Retail
3 3 (11.54%) Marketing
4 2 (7.69%) Banking
5 1 (3.85%) Multimedia
5 1 (3.85%) Telecoms
Job Titles
1 8 (30.77%) Analyst
2 7 (26.92%) Data Analyst
2 7 (26.92%) Developer
3 4 (15.38%) Data Scientist
4 3 (11.54%) Business Developer
4 3 (11.54%) Business Intelligence Manager
4 3 (11.54%) SAP BusinessObjects (BO) Developer
5 2 (7.69%) Business Analyst
5 2 (7.69%) Business Data Analyst
5 2 (7.69%) Business Manager
6 1 (3.85%) Administrator
6 1 (3.85%) Consultant
6 1 (3.85%) Database Developer
6 1 (3.85%) DBA
6 1 (3.85%) Lead Developer
6 1 (3.85%) Programme Manager
6 1 (3.85%) Programmer
6 1 (3.85%) Senior Developer
6 1 (3.85%) SQL Developer
6 1 (3.85%) Technical Analyst
Libraries, Frameworks & Software Standards
1 2 (7.69%) MDX
1 2 (7.69%) NumPy
2 1 (3.85%) .NET
2 1 (3.85%) D3.js
2 1 (3.85%) FIX Protocol
2 1 (3.85%) FpML
2 1 (3.85%) HTML
2 1 (3.85%) HTML5
2 1 (3.85%) Kafka
2 1 (3.85%) Natural Language Processing
2 1 (3.85%) Regular Expression
2 1 (3.85%) scikit-learn
2 1 (3.85%) TensorFlow
Miscellaneous
1 7 (26.92%) Analytical Skills
2 5 (19.23%) Computer Science
3 3 (11.54%) Algorithms
4 1 (3.85%) Data Structures
4 1 (3.85%) Derivative
4 1 (3.85%) Fixed Income
4 1 (3.85%) FMCG
4 1 (3.85%) Social Media
4 1 (3.85%) Social Network
4 1 (3.85%) User Experience
Operating Systems
1 1 (3.85%) Windows
Processes & Methodologies
1 10 (38.46%) Data Management
2 9 (34.62%) Data Modelling
3 8 (30.77%) Business Intelligence
4 7 (26.92%) Analytics
4 7 (26.92%) Data Analysis
4 7 (26.92%) ETL
5 6 (23.08%) Visualisation
6 5 (19.23%) Agile Software Development
6 5 (19.23%) Data Integration
7 4 (15.38%) Data Architecture
7 4 (15.38%) Data Governance
7 4 (15.38%) Machine Learning
7 4 (15.38%) Process Improvement
7 4 (15.38%) Statistical Analysis
7 4 (15.38%) Statistics
8 3 (11.54%) Customer Insight
8 3 (11.54%) Data Visualisation
8 3 (11.54%) Software Architecture
8 3 (11.54%) Stakeholder Engagement
8 3 (11.54%) Web Application Development
Programming Languages
1 16 (61.54%) SQL
2 7 (26.92%) R
3 6 (23.08%) Python
4 4 (15.38%) Java
4 4 (15.38%) VBA
5 2 (7.69%) MATLAB
5 2 (7.69%) Scala
6 1 (3.85%) C#
6 1 (3.85%) C++
Qualifications
1 6 (23.08%) Degree
2 3 (11.54%) SC Cleared
2 3 (11.54%) Security Cleared
3 1 (3.85%) CBAP
3 1 (3.85%) ISEB
3 1 (3.85%) PhD
Quality Assurance & Compliance
1 10 (38.46%) Data Quality
2 3 (11.54%) HMG Security Policy Framework
3 1 (3.85%) MiFID
3 1 (3.85%) QA
Vendors
1 6 (23.08%) Oracle
1 6 (23.08%) Tableau
2 5 (19.23%) Microsoft
2 5 (19.23%) Teradata
3 3 (11.54%) Cognos
3 3 (11.54%) Informatica
3 3 (11.54%) MicroStrategy
4 2 (7.69%) Ab Initio
4 2 (7.69%) DataFlux
4 2 (7.69%) IBM
4 2 (7.69%) Netezza
5 1 (3.85%) Alteryx
5 1 (3.85%) JD Edwards
5 1 (3.85%) RapidMiner
5 1 (3.85%) Symantec
5 1 (3.85%) Varonis