Period
to 20 November 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 20 November 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
20 Nov 2018
Same period 2017 Same period 2016
Rank 193 224 229
Rank change year-on-year +31 +5 +31
Contract jobs requiring a Data Scientist 59 27 21
As % of all contract IT jobs advertised in the City of London 0.84% 0.38% 0.32%
As % of the Job Titles category 0.88% 0.40% 0.33%
Number of daily rates quoted 36 23 20
City of London median daily rate £550 £580 £500
Median daily rate % change year-on-year -5.17% +16.00% -11.11%
10th Percentile £363 £283 £425
90th Percentile £688 £775 £621
Central London median daily rate £550 £580 £500
% change year-on-year -5.17% +16.00% -11.11%
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 6,726 6,715 6,308
% of contract IT jobs with a recognized job title 95.30% 94.70% 95.65%
Number of daily rates quoted 5,336 5,304 5,018
City of London median daily rate £500 £500 £475
Median daily rate % change year-on-year - +5.26% +5.56%
10th Percentile £306 £313 £313
90th Percentile £675 £677 £663
Central London median daily rate £500 £500 £475
% change year-on-year - +5.26% +5.56%
Number of hourly rates quoted 112 94 77
City of London median hourly rate £18.70 £17.00 £17.50
Median hourly rate % change year-on-year +10.00% -2.86% -7.89%
10th Percentile £13.00 £11.25 £11.50
90th Percentile £27.30 £29.29 £48.40
Central London median hourly rate £18.70 £18.10 £17.21
% change year-on-year +3.31% +5.19% -4.40%

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 20 November 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 20 November 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 59 (100.00%) Data Science
2 52 (88.14%) Python
3 41 (69.49%) Machine Learning
4 22 (37.29%) Finance
4 22 (37.29%) Mathematics
5 18 (30.51%) R
5 18 (30.51%) Algorithms
6 17 (28.81%) TensorFlow
6 17 (28.81%) SQL
7 16 (27.12%) Analytics
8 15 (25.42%) Prototyping
9 14 (23.73%) Hadoop
9 14 (23.73%) PhD
9 14 (23.73%) Degree
9 14 (23.73%) Statistics
10 13 (22.03%) Computer Science
10 13 (22.03%) Natural Language Processing
10 13 (22.03%) Big Data
10 13 (22.03%) Apache Spark
10 13 (22.03%) scikit-learn
11 12 (20.34%) Visualisation
12 11 (18.64%) Deep Learning
12 11 (18.64%) Banking
13 9 (15.25%) Data Mining
13 9 (15.25%) Scala
14 8 (13.56%) Predictive Modelling
14 8 (13.56%) Statistical Modelling
14 8 (13.56%) Java
14 8 (13.56%) Applied Mathematics
14 8 (13.56%) Artificial Intelligence

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 13 (22.03%) Apache Spark
2 6 (10.17%) Jupyter
3 4 (6.78%) Elasticsearch
3 4 (6.78%) SAS
4 1 (1.69%) Apache Pig
4 1 (1.69%) SharePoint
Applications
1 4 (6.78%) Chatbot
2 1 (1.69%) Microsoft Excel
Cloud Services
1 5 (8.47%) Amazon AWS
2 4 (6.78%) Google Cloud Platform
2 4 (6.78%) Microsoft Azure
3 2 (3.39%) Google Analytics
4 1 (1.69%) Adobe Analytics
4 1 (1.69%) Amazon Kinesis
Database & Business Intelligence
1 14 (23.73%) Hadoop
2 13 (22.03%) Big Data
3 9 (15.25%) Data Mining
4 6 (10.17%) NoSQL
5 4 (6.78%) Apache Hive
6 3 (5.08%) Apache Cassandra
6 3 (5.08%) HBase
6 3 (5.08%) MongoDB
6 3 (5.08%) Sqoop
7 2 (3.39%) Blockchain
7 2 (3.39%) Neo4j
7 2 (3.39%) PostgreSQL
7 2 (3.39%) Spotfire
8 1 (1.69%) Amazon Athena
8 1 (1.69%) Amazon Redshift
8 1 (1.69%) Data Warehouse
8 1 (1.69%) Oracle Database
8 1 (1.69%) QlikView
8 1 (1.69%) Relational Database
8 1 (1.69%) Text Mining
Development Applications
1 2 (3.39%) Git (software)
1 2 (3.39%) GitLab
2 1 (1.69%) Jenkins
2 1 (1.69%) RStudio
General
1 22 (37.29%) Finance
2 11 (18.64%) Banking
3 5 (8.47%) Marketing
4 3 (5.08%) Retail
5 2 (3.39%) Investment Banking
6 1 (1.69%) Electronics
Libraries, Frameworks & Software Standards
1 17 (28.81%) TensorFlow
2 13 (22.03%) Natural Language Processing
2 13 (22.03%) scikit-learn
3 5 (8.47%) Keras
3 5 (8.47%) Pandas
4 4 (6.78%) Kafka
5 3 (5.08%) NumPy
6 2 (3.39%) Node.js
6 2 (3.39%) PyMC3
6 2 (3.39%) PySpark
6 2 (3.39%) SciPy
6 2 (3.39%) SpaCy
7 1 (1.69%) Anaconda
7 1 (1.69%) Caffe
7 1 (1.69%) Deeplearning4j
7 1 (1.69%) Elastic Stack
7 1 (1.69%) MLlib
7 1 (1.69%) Theano
7 1 (1.69%) XGBoost
Miscellaneous
1 18 (30.51%) Algorithms
2 13 (22.03%) Computer Science
3 8 (13.56%) Analytical Skills
4 3 (5.08%) Data Structures
4 3 (5.08%) User Experience
5 1 (1.69%) Greenfield Project
5 1 (1.69%) Management Information System
Processes & Methodologies
1 59 (100.00%) Data Science
2 41 (69.49%) Machine Learning
3 22 (37.29%) Mathematics
4 16 (27.12%) Analytics
5 15 (25.42%) Prototyping
6 14 (23.73%) Statistics
7 12 (20.34%) Visualisation
8 11 (18.64%) Deep Learning
9 8 (13.56%) Applied Mathematics
9 8 (13.56%) Artificial Intelligence
9 8 (13.56%) Predictive Modelling
9 8 (13.56%) Statistical Modelling
10 7 (11.86%) Problem-Solving
11 6 (10.17%) Agile Software Development
11 6 (10.17%) Data Analysis
11 6 (10.17%) Predictive Analytics
12 5 (8.47%) Econometrics
12 5 (8.47%) Linear Programming
12 5 (8.47%) Mentoring
13 4 (6.78%) Linear Regression
Programming Languages
1 52 (88.14%) Python
2 18 (30.51%) R
3 17 (28.81%) SQL
4 9 (15.25%) Scala
5 8 (13.56%) Java
6 5 (8.47%) MATLAB
7 3 (5.08%) C++
8 2 (3.39%) Bash Shell
8 2 (3.39%) Cypher
9 1 (1.69%) VBA
Qualifications
1 14 (23.73%) Degree
1 14 (23.73%) PhD
2 4 (6.78%) Master's Degree
3 2 (3.39%) Computer Science Degree
3 2 (3.39%) Security Cleared
4 1 (1.69%) Numerate Degree
Quality Assurance & Compliance
1 7 (11.86%) QA
2 6 (10.17%) Data Quality
System Software
1 3 (5.08%) Apache Flume
1 3 (5.08%) Docker
Systems Management
1 2 (3.39%) Kubernetes
2 1 (1.69%) Kibana
Vendors
1 5 (8.47%) Google
2 4 (6.78%) Hortonworks
3 3 (5.08%) Tableau
4 2 (3.39%) IBM
4 2 (3.39%) Oracle
5 1 (1.69%) Adobe
5 1 (1.69%) Bloomberg
5 1 (1.69%) Microsoft
5 1 (1.69%) Omniture
5 1 (1.69%) Reuters