The median contractor rate for a Data Scientist was £550 per day in advertised job vacancies in the City of London during the 3 months to 25 March 2017.

The first table below provides contractor rate benchmarking and summary statistics including a comparison to 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 Scientist
London / City of London
Rank 134 145 181
Rank change year-on-year +11 +36  
Contract jobs requiring a Data Scientist 21 14 14
As % of all contract IT jobs advertised in the City of London 0.69% 0.42% 0.28%
As % of the Job Titles category 0.73% 0.44% 0.29%
Number of daily rates quoted 17 12 9
Median daily rate £550 £581 £575
Median daily rate % change year-on-year -5.37% +1.08%  
90% offered a daily rate of more than £458 £506 £443
10% offered a daily rate of more than £625 £648 £640
UK excluding London median daily rate £481 £550 £425
% change year-on-year -12.54% +29.41%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - £16.00

The next table is for comparison with the above and includes summary statistics for all job roles in contract job vacancies advertised in the City of London. Most job vacancies include a discernible job title. As such, the figures in the first row provide an indication of the number of contract jobs in our overall sample.

Contract IT Job Roles
City of London
Contract job vacancies with a job title containing a recognized job role 2886 3173 4864
As % of all contract IT job vacancies advertised in the City of London 95.25% 95.40% 96.03%
Number of daily rates quoted 2244 2526 3664
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 £313 £300 £276
10% offered a daily rate of more than £650 £625 £613
UK excluding London median daily rate £400 £388 £375
% change year-on-year +3.22% +3.33%  
Number of hourly rates quoted 32 47 75
Median hourly rate £19.00 £20.00 £18.60
Median hourly rate % change year-on-year -4.97% +7.50%  
90% offered a hourly rate of more than £13.50 £12.00 £12.50
10% offered a hourly rate of more than £29.38 £45.40 £27.37
UK excluding London median hourly rate £17.50 £20.00 £17.22
% change year-on-year -12.50% +16.14%  

Data Scientist
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London that featured Data Scientist in the job title.

Job vacancy trend for Data Scientist in the City of London

Data Scientist
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 Scientist in the City of London.

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

Data Scientist
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Data Scientist in the City of London over the 3 months to 25 March 2017.

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

Data Scientist Skill Set
Top 30 Related IT Skills in the City of London

For the 6 months to 25 March 2017, Data Scientist contract jobs required the following IT 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 featuring Data Scientist in the job title.

1 34 (85.00%) Python
2 23 (57.50%) R
3 21 (52.50%) Machine Learning
3 21 (52.50%) Algorithms
4 20 (50.00%) Big Data
4 20 (50.00%) SQL
5 19 (47.50%) Hadoop
6 15 (37.50%) Computer Science
6 15 (37.50%) Apache Spark
7 14 (35.00%) Scala
7 14 (35.00%) Java
8 13 (32.50%) Statistics
9 12 (30.00%) Mathematics
9 12 (30.00%) PhD
10 11 (27.50%) Analytics
11 9 (22.50%) A/B Testing
12 8 (20.00%) Analytical Skills
12 8 (20.00%) Data Visualisation
12 8 (20.00%) Degree
12 8 (20.00%) Visualisation
13 7 (17.50%) Apache Hive
14 6 (15.00%) Neural Network
14 6 (15.00%) Data Modelling
14 6 (15.00%) ETL
14 6 (15.00%) Tableau
14 6 (15.00%) Apache Pig
14 6 (15.00%) Anomaly Detection
15 5 (12.50%) scikit-learn
15 5 (12.50%) Predictive Modelling
16 4 (10.00%) Software Engineering

Data Scientist Skill Set
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 15 (37.50%) Apache Spark
2 6 (15.00%) Apache Pig
3 1 (2.50%) Elasticsearch
3 1 (2.50%) SAS
Applications
1 3 (7.50%) SPSS
2 2 (5.00%) Weka
3 1 (2.50%) MS Excel
Business Applications
1 1 (2.50%) SAP Oil and Gas
Cloud Services
1 2 (5.00%) Amazon AWS
2 1 (2.50%) Google Cloud Platform
2 1 (2.50%) Microsoft Azure
Communications & Networking
1 1 (2.50%) Internet
Database & Business Intelligence
1 20 (50.00%) Big Data
2 19 (47.50%) Hadoop
3 7 (17.50%) Apache Hive
4 4 (10.00%) Data Mining
5 3 (7.50%) MongoDB
5 3 (7.50%) Text Mining
6 2 (5.00%) Amazon Redshift
6 2 (5.00%) Apache Cassandra
6 2 (5.00%) HBase
6 2 (5.00%) NoSQL
6 2 (5.00%) QlikView
7 1 (2.50%) BigQuery
7 1 (2.50%) Cloudera CDH
7 1 (2.50%) Data Lake
7 1 (2.50%) GIS
7 1 (2.50%) Impala
7 1 (2.50%) Neo4j
7 1 (2.50%) Relational Database
General
1 4 (10.00%) Finance
2 3 (7.50%) Banking
2 3 (7.50%) Marketing
2 3 (7.50%) Retail
3 2 (5.00%) Telecoms
4 1 (2.50%) Electronics
4 1 (2.50%) Manufacturing
4 1 (2.50%) Multimedia
Libraries, Frameworks & Software Standards
1 5 (12.50%) scikit-learn
2 4 (10.00%) Natural Language Processing
2 4 (10.00%) Pandas
3 3 (7.50%) NumPy
4 1 (2.50%) D3.js
4 1 (2.50%) Flask
4 1 (2.50%) SciPy
4 1 (2.50%) TensorFlow
Miscellaneous
1 21 (52.50%) Algorithms
2 15 (37.50%) Computer Science
3 8 (20.00%) Analytical Skills
4 2 (5.00%) Enterprise Software
5 1 (2.50%) Social Media
5 1 (2.50%) Social Network
5 1 (2.50%) User Experience
5 1 (2.50%) Virtual Team
Operating Systems
1 1 (2.50%) Unix
Processes & Methodologies
1 21 (52.50%) Machine Learning
2 13 (32.50%) Statistics
3 12 (30.00%) Mathematics
4 11 (27.50%) Analytics
5 9 (22.50%) A/B Testing
6 8 (20.00%) Data Visualisation
6 8 (20.00%) Visualisation
7 6 (15.00%) Anomaly Detection
7 6 (15.00%) Data Modelling
7 6 (15.00%) ETL
7 6 (15.00%) Neural Network
8 5 (12.50%) Predictive Modelling
9 4 (10.00%) Business Intelligence
9 4 (10.00%) E-Commerce
9 4 (10.00%) Operations Research
9 4 (10.00%) Predictive Analytics
9 4 (10.00%) Software Engineering
10 3 (7.50%) Agile Software Development
10 3 (7.50%) Artificial Intelligence
10 3 (7.50%) OO
Programming Languages
1 34 (85.00%) Python
2 23 (57.50%) R
3 20 (50.00%) SQL
4 14 (35.00%) Java
4 14 (35.00%) Scala
5 4 (10.00%) C++
5 4 (10.00%) MATLAB
6 1 (2.50%) T-SQL
Qualifications
1 12 (30.00%) PhD
2 8 (20.00%) Degree
3 2 (5.00%) Postgraduate
Quality Assurance & Compliance
1 4 (10.00%) Data Quality
2 1 (2.50%) QA
Systems Management
1 1 (2.50%) Hadoop YARN
Vendors
1 6 (15.00%) Tableau
2 2 (5.00%) RapidMiner
3 1 (2.50%) Alteryx
3 1 (2.50%) Google
3 1 (2.50%) Hortonworks
3 1 (2.50%) SAP