Period
to 25 November 2017

The median contractor rate for a Data Scientist was £578 per day in advertised job vacancies in the City of London during the 6 months to 25 November 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.

Data Scientist
Central London > City of London
6 months to
25 Nov 2017
Same period 2016 Same period 2015
Rank 224 222 256
Rank change year-on-year -2 +34 +32
Contract jobs requiring a Data Scientist 28 21 14
As % of all contract IT jobs advertised in the City of London 0.39% 0.32% 0.15%
As % of the Job Titles category 0.42% 0.33% 0.16%
Number of daily rates quoted 24 20 12
City of London median daily rate £578 £500 £531
Median daily rate % change year-on-year +15.50% -5.88% -7.61%
10th Percentile £288 £423 £407
90th Percentile £775 £621 £625
Central London median daily rate £578 £500 £531
% change year-on-year +15.50% -5.88% -7.61%
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

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

All Contract IT Job Vacancies
City of London
Contract vacancies in the City of London with a recognized job title 6706 6360 8632
% of contract IT jobs with a recognized job title 94.44% 95.48% 95.34%
Number of daily rates quoted 5298 5043 6784
City of London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +2.86%
10th Percentile £313 £313 £275
90th Percentile £688 £663 £650
Central London median daily rate £500 £475 £450
% change year-on-year +5.26% +5.56% +5.88%
Number of hourly rates quoted 90 77 125
City of London median hourly rate £18.00 £17.25 £19.00
Median hourly rate % change year-on-year +4.35% -9.21% +8.57%
10th Percentile £11.25 £11.50 £10.20
90th Percentile £30.75 £48.40 £39.50
Central London median hourly rate £18.40 £17.00 £18.00
% change year-on-year +8.22% -5.56% +5.88%

Data Scientist
Job Vacancy Trend in the City of London

Job postings that featured Data Scientist in the job title as a percentage of all IT jobs advertised in the City of London.

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 6 months to 25 November 2017.

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

Data Scientist Skill Set
Top 30 Co-occurring IT Skills in the City of London

For the 6 months to 25 November 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 25 (89.29%) Python
2 16 (57.14%) Machine Learning
3 15 (53.57%) R
3 15 (53.57%) Apache Spark
4 14 (50.00%) Big Data
5 12 (42.86%) Hadoop
5 12 (42.86%) Analytics
5 12 (42.86%) SQL
6 11 (39.29%) Algorithms
7 10 (35.71%) Visualisation
8 8 (28.57%) Statistics
9 7 (25.00%) Mathematics
9 7 (25.00%) Tableau
10 5 (17.86%) Natural Language Processing
10 5 (17.86%) MongoDB
10 5 (17.86%) Scala
10 5 (17.86%) Amazon AWS
10 5 (17.86%) Predictive Modelling
10 5 (17.86%) scikit-learn
10 5 (17.86%) Pandas
10 5 (17.86%) Marketing
10 5 (17.86%) Degree
10 5 (17.86%) Computer Science
10 5 (17.86%) A/B Testing
11 4 (14.29%) Random Forest
11 4 (14.29%) PhD
11 4 (14.29%) Information Retrieval
11 4 (14.29%) NumPy
11 4 (14.29%) Apache Hive
11 4 (14.29%) Data Visualisation

Data Scientist Skill Set
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 15 (53.57%) Apache Spark
2 2 (7.14%) OpenStack
2 2 (7.14%) SAS
3 1 (3.57%) Apache
3 1 (3.57%) Elasticsearch
3 1 (3.57%) Jetty
3 1 (3.57%) Jupyter
3 1 (3.57%) nginx
Applications
1 3 (10.71%) SPSS
2 2 (7.14%) Weka
Cloud Services
1 5 (17.86%) Amazon AWS
2 3 (10.71%) GitHub
3 2 (7.14%) Microsoft Azure
4 1 (3.57%) Amazon EC2
4 1 (3.57%) Amazon Kinesis
4 1 (3.57%) Amazon S3
4 1 (3.57%) AWS CloudTrail
4 1 (3.57%) AWS Lambda
4 1 (3.57%) Azure Active Directory
4 1 (3.57%) CloudFront
4 1 (3.57%) Google Cloud Platform
4 1 (3.57%) Route 53
4 1 (3.57%) Serverless
4 1 (3.57%) Virtual Private Cloud
Database & Business Intelligence
1 14 (50.00%) Big Data
2 12 (42.86%) Hadoop
3 5 (17.86%) MongoDB
4 4 (14.29%) Apache Hive
5 2 (7.14%) Amazon Redshift
5 2 (7.14%) Data Lake
5 2 (7.14%) Data Mining
5 2 (7.14%) KNIME
5 2 (7.14%) QlikView
5 2 (7.14%) STATISTICA
6 1 (3.57%) Amazon DynamoDB
6 1 (3.57%) BusinessObjects
6 1 (3.57%) Data Warehouse
6 1 (3.57%) HDInsight
6 1 (3.57%) Impala
6 1 (3.57%) Neo4j
6 1 (3.57%) Power BI
6 1 (3.57%) Qlik Sense
6 1 (3.57%) Spotfire
6 1 (3.57%) SQL Server
Development Applications
1 1 (3.57%) Babel
1 1 (3.57%) Bower
1 1 (3.57%) Git (software)
1 1 (3.57%) Gradle
1 1 (3.57%) Grunt
1 1 (3.57%) Jenkins
1 1 (3.57%) Travis CI
General
1 5 (17.86%) Marketing
2 3 (10.71%) Finance
3 2 (7.14%) Retail
4 1 (3.57%) Local Government
4 1 (3.57%) Publishing
Libraries, Frameworks & Software Standards
1 5 (17.86%) Natural Language Processing
1 5 (17.86%) Pandas
1 5 (17.86%) scikit-learn
2 4 (14.29%) NumPy
3 3 (10.71%) Matplotlib
4 2 (7.14%) ggplot
4 2 (7.14%) JSON
4 2 (7.14%) Lucene
4 2 (7.14%) SciPy
4 2 (7.14%) TensorFlow
5 1 (3.57%) .NET
5 1 (3.57%) Dropwizard
5 1 (3.57%) HTML
5 1 (3.57%) Keras
5 1 (3.57%) PySpark
5 1 (3.57%) RabbitMQ
5 1 (3.57%) SparkR
5 1 (3.57%) Spring
5 1 (3.57%) Swagger
5 1 (3.57%) Torch
Miscellaneous
1 11 (39.29%) Algorithms
2 5 (17.86%) Computer Science
3 3 (10.71%) Analytical Skills
4 2 (7.14%) Linked Data
4 2 (7.14%) Semantic Web
5 1 (3.57%) Clustering
5 1 (3.57%) Data Structures
5 1 (3.57%) Management Information System
Operating Systems
1 2 (7.14%) Unix
Processes & Methodologies
1 16 (57.14%) Machine Learning
2 12 (42.86%) Analytics
3 10 (35.71%) Visualisation
4 8 (28.57%) Statistics
5 7 (25.00%) Mathematics
6 5 (17.86%) A/B Testing
6 5 (17.86%) Predictive Modelling
7 4 (14.29%) Data Visualisation
7 4 (14.29%) Information Retrieval
7 4 (14.29%) Random Forest
8 3 (10.71%) Artificial Intelligence
8 3 (10.71%) Data Analysis
9 2 (7.14%) Data Modelling
9 2 (7.14%) E-Commerce
9 2 (7.14%) Econometrics
9 2 (7.14%) Economics
9 2 (7.14%) Predictive Analytics
9 2 (7.14%) Software Engineering
9 2 (7.14%) Statistical Analysis
9 2 (7.14%) Use Case
Programming Languages
1 25 (89.29%) Python
2 15 (53.57%) R
3 12 (42.86%) SQL
4 5 (17.86%) Scala
5 3 (10.71%) Java
6 2 (7.14%) AWK
6 2 (7.14%) Bash Shell
6 2 (7.14%) sed
6 2 (7.14%) SPARQL
7 1 (3.57%) JavaScript
Qualifications
1 5 (17.86%) Degree
2 4 (14.29%) PhD
3 2 (7.14%) Master's Degree
4 1 (3.57%) Numerate Degree
Quality Assurance & Compliance
1 3 (10.71%) QA
2 1 (3.57%) Data Quality
System Software
1 1 (3.57%) Docker
1 1 (3.57%) Virtual Machines
Systems Management
1 1 (3.57%) Terraform
Vendors
1 7 (25.00%) Tableau
2 2 (7.14%) Hortonworks
3 1 (3.57%) Alteryx
3 1 (3.57%) Cognos
3 1 (3.57%) Databricks
3 1 (3.57%) Google
3 1 (3.57%) Microsoft
3 1 (3.57%) MicroStrategy