Period
to 24 September 2018

The median contractor rate for a Data Scientist was £550 per day in advertised job vacancies in the City of London during the 6 months to 24 September 2018.

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
24 Sep 2018
Same period 2017 Same period 2016
Rank 186 207 225
Rank change year-on-year +21 +18 +46
Contract jobs requiring a Data Scientist 56 30 14
As % of all contract IT jobs advertised in the City of London 0.81% 0.45% 0.21%
As % of the Job Titles category 0.85% 0.47% 0.22%
Number of daily rates quoted 35 26 14
City of London median daily rate £550 £578 £569
Median daily rate % change year-on-year -4.76% +1.54% -1.09%
10th Percentile £443 £299 £335
90th Percentile £633 £794 £753
Central London median daily rate £550 £575 £556
% change year-on-year -4.35% +3.37% -3.26%
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 6,577 6,384 6,415
% of contract IT jobs with a recognized job title 94.99% 95.23% 95.52%
Number of daily rates quoted 5,201 4,961 5,131
City of London median daily rate £500 £500 £475
Median daily rate % change year-on-year - +5.26% +5.56%
10th Percentile £313 £313 £306
90th Percentile £675 £675 £650
Central London median daily rate £500 £498 £463
% change year-on-year +0.50% +7.57% +2.78%
Number of hourly rates quoted 127 86 71
City of London median hourly rate £18.70 £18.05 £17.50
Median hourly rate % change year-on-year +3.60% +3.14% -2.78%
10th Percentile £13.00 £12.52 £11.25
90th Percentile £25.50 £30.38 £50.14
Central London median hourly rate £18.70 £18.40 £17.50
% change year-on-year +1.66% +5.11% -2.78%

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 24 September 2018.

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 24 September 2018, Data Scientist contract jobs required the following IT skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the City of London region featuring Data Scientist in the job title.

1 56 (100.00%) Data Science
2 51 (91.07%) Python
3 38 (67.86%) Machine Learning
4 27 (48.21%) Mathematics
5 24 (42.86%) R
6 20 (35.71%) PhD
7 18 (32.14%) Finance
7 18 (32.14%) Computer Science
7 18 (32.14%) Algorithms
8 17 (30.36%) Big Data
9 16 (28.57%) SQL
10 14 (25.00%) Hadoop
10 14 (25.00%) TensorFlow
11 13 (23.21%) Deep Learning
11 13 (23.21%) Prototyping
12 12 (21.43%) Natural Language Processing
12 12 (21.43%) Degree
13 11 (19.64%) Statistics
13 11 (19.64%) Banking
14 10 (17.86%) Analytics
14 10 (17.86%) Problem-Solving
15 9 (16.07%) Predictive Modelling
15 9 (16.07%) Scala
15 9 (16.07%) Data Analysis
16 8 (14.29%) Applied Mathematics
16 8 (14.29%) Visualisation
16 8 (14.29%) NoSQL
16 8 (14.29%) scikit-learn
16 8 (14.29%) Apache Spark
17 7 (12.50%) MATLAB

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 8 (14.29%) Apache Spark
2 5 (8.93%) SAS
3 4 (7.14%) Elasticsearch
3 4 (7.14%) Jupyter
4 1 (1.79%) Apache Pig
4 1 (1.79%) SharePoint
Applications
1 4 (7.14%) Chatbot
Cloud Services
1 2 (3.57%) Amazon AWS
1 2 (3.57%) Google Cloud Platform
1 2 (3.57%) Microsoft Azure
2 1 (1.79%) Adobe Analytics
2 1 (1.79%) Google Analytics
Database & Business Intelligence
1 17 (30.36%) Big Data
2 14 (25.00%) Hadoop
3 8 (14.29%) NoSQL
4 7 (12.50%) Data Mining
5 6 (10.71%) Apache Hive
6 5 (8.93%) Apache Cassandra
6 5 (8.93%) MongoDB
7 3 (5.36%) HBase
7 3 (5.36%) Sqoop
8 2 (3.57%) Neo4j
8 2 (3.57%) PostgreSQL
8 2 (3.57%) RDBMS
8 2 (3.57%) Relational Database
8 2 (3.57%) Spotfire
9 1 (1.79%) Amazon Athena
9 1 (1.79%) Amazon Redshift
9 1 (1.79%) Power BI
9 1 (1.79%) QlikView
9 1 (1.79%) SQL Server Analysis Services
9 1 (1.79%) SQL Server Reporting Services
Development Applications
1 2 (3.57%) GitLab
2 1 (1.79%) Git (software)
General
1 18 (32.14%) Finance
2 11 (19.64%) Banking
3 4 (7.14%) Marketing
4 2 (3.57%) Investment Banking
5 1 (1.79%) Electronics
5 1 (1.79%) Retail
Libraries, Frameworks & Software Standards
1 14 (25.00%) TensorFlow
2 12 (21.43%) Natural Language Processing
3 8 (14.29%) scikit-learn
4 6 (10.71%) Kafka
5 5 (8.93%) Keras
6 3 (5.36%) Pandas
7 2 (3.57%) Node.js
7 2 (3.57%) Torch
8 1 (1.79%) Caffe
8 1 (1.79%) Deeplearning4j
8 1 (1.79%) Elastic Stack
8 1 (1.79%) NumPy
8 1 (1.79%) OpenNLP
8 1 (1.79%) Theano
8 1 (1.79%) XGBoost
Miscellaneous
1 18 (32.14%) Algorithms
1 18 (32.14%) Computer Science
2 6 (10.71%) Analytical Skills
3 2 (3.57%) Data Structures
4 1 (1.79%) Greenfield Project
4 1 (1.79%) Management Information System
Processes & Methodologies
1 56 (100.00%) Data Science
2 38 (67.86%) Machine Learning
3 27 (48.21%) Mathematics
4 13 (23.21%) Deep Learning
4 13 (23.21%) Prototyping
5 11 (19.64%) Statistics
6 10 (17.86%) Analytics
6 10 (17.86%) Problem-Solving
7 9 (16.07%) Data Analysis
7 9 (16.07%) Predictive Modelling
8 8 (14.29%) Applied Mathematics
8 8 (14.29%) Visualisation
9 6 (10.71%) Software Engineering
9 6 (10.71%) Statistical Modelling
10 5 (8.93%) Mentoring
10 5 (8.93%) Open Source
10 5 (8.93%) Sentiment Analysis
11 4 (7.14%) Agile Software Development
11 4 (7.14%) Artificial Intelligence
11 4 (7.14%) Complexity Analysis
Programming Languages
1 51 (91.07%) Python
2 24 (42.86%) R
3 16 (28.57%) SQL
4 9 (16.07%) Scala
5 7 (12.50%) Java
5 7 (12.50%) MATLAB
6 2 (3.57%) Bash Shell
6 2 (3.57%) C++
6 2 (3.57%) Cypher
6 2 (3.57%) Julia
6 2 (3.57%) PL/SQL
Qualifications
1 20 (35.71%) PhD
2 12 (21.43%) Degree
3 2 (3.57%) Computer Science Degree
4 1 (1.79%) Master's Degree
4 1 (1.79%) Numerate Degree
Quality Assurance & Compliance
1 6 (10.71%) QA
2 5 (8.93%) Data Quality
System Software
1 3 (5.36%) Apache Flume
2 2 (3.57%) Docker
Systems Management
1 2 (3.57%) Kubernetes
2 1 (1.79%) Kibana
Vendors
1 4 (7.14%) Google
1 4 (7.14%) Hortonworks
2 3 (5.36%) Oracle
2 3 (5.36%) Tableau
3 2 (3.57%) IBM
4 1 (1.79%) Adobe
4 1 (1.79%) Microsoft
4 1 (1.79%) Omniture
4 1 (1.79%) Splunk