Period
to 19 February 2019

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 19 February 2019.

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
19 Feb 2019
Same period 2018 Same period 2017
Rank 200 222 200
Rank change year-on-year +22 -22 +30
Contract jobs requiring a Data Scientist 60 26 37
As % of all contract IT jobs advertised in the City of London 0.88% 0.37% 0.61%
As % of the Job Titles category 0.93% 0.39% 0.64%
Number of daily rates quoted 38 21 32
City of London median daily rate £550 £575 £500
Median daily rate % change year-on-year -4.35% +15.00% -11.11%
10th Percentile £407 £450 £425
90th Percentile £686 £775 £636
Central London median daily rate £550 £575 £500
% change year-on-year -4.35% +15.00% -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 6,452 6,669 5,810
% of contract IT jobs with a recognized job title 94.62% 94.46% 95.64%
Number of daily rates quoted 5,052 5,300 4,605
City of London median daily rate £500 £500 £475
Median daily rate % change year-on-year - +5.26% -
10th Percentile £305 £313 £313
90th Percentile £675 £688 £663
Central London median daily rate £500 £500 £475
% change year-on-year - +5.26% +5.56%
Number of hourly rates quoted 69 98 72
City of London median hourly rate £18.70 £16.25 £18.35
Median hourly rate % change year-on-year +15.08% -11.44% -8.22%
10th Percentile £12.25 £11.25 £12.53
90th Percentile £35.00 £31.68 £54.51
Central London median hourly rate £18.70 £18.00 £17.50
% change year-on-year +3.89% +2.86% -12.46%

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 19 February 2019.

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 19 February 2019, 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 (98.33%) Data Science
2 50 (83.33%) Python
3 42 (70.00%) Machine Learning
4 25 (41.67%) Analytics
5 22 (36.67%) Apache Spark
6 19 (31.67%) SQL
7 17 (28.33%) PhD
7 17 (28.33%) Finance
7 17 (28.33%) Mathematics
7 17 (28.33%) Big Data
8 16 (26.67%) Algorithms
9 14 (23.33%) Hadoop
9 14 (23.33%) Amazon AWS
9 14 (23.33%) Degree
9 14 (23.33%) Computer Science
9 14 (23.33%) Statistics
10 13 (21.67%) R
10 13 (21.67%) Statistical Modelling
10 13 (21.67%) TensorFlow
11 12 (20.00%) Master's Degree
11 12 (20.00%) PySpark
12 11 (18.33%) Deep Learning
12 11 (18.33%) Artificial Intelligence
13 10 (16.67%) Predictive Analytics
13 10 (16.67%) Analytical Skills
13 10 (16.67%) Natural Language Processing
13 10 (16.67%) Visualisation
13 10 (16.67%) scikit-learn
14 9 (15.00%) Prototyping
14 9 (15.00%) Data Analysis

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 22 (36.67%) Apache Spark
2 4 (6.67%) Jupyter
3 2 (3.33%) Elasticsearch
3 2 (3.33%) SAS
4 1 (1.67%) SharePoint
Applications
1 2 (3.33%) Microsoft Excel
2 1 (1.67%) Chatbot
2 1 (1.67%) Microsoft Office
2 1 (1.67%) Microsoft PowerPoint
Business Applications
1 1 (1.67%) Actimize
Cloud Services
1 14 (23.33%) Amazon AWS
2 6 (10.00%) Amazon EMR
2 6 (10.00%) Microsoft Azure
3 5 (8.33%) Google Cloud Platform
4 2 (3.33%) Cloud Computing
4 2 (3.33%) Google Analytics
5 1 (1.67%) Adobe Analytics
5 1 (1.67%) Amazon Kinesis
Database & Business Intelligence
1 17 (28.33%) Big Data
2 14 (23.33%) Hadoop
3 9 (15.00%) Data Mining
4 7 (11.67%) Apache Hive
5 4 (6.67%) Relational Database
6 2 (3.33%) Blockchain
6 2 (3.33%) Neo4j
6 2 (3.33%) PostgreSQL
6 2 (3.33%) Spotfire
7 1 (1.67%) BigQuery
7 1 (1.67%) Data Warehouse
7 1 (1.67%) NoSQL
7 1 (1.67%) Oracle Database
7 1 (1.67%) Qlik Sense
7 1 (1.67%) Text Mining
Development Applications
1 3 (5.00%) Git (software)
1 3 (5.00%) Jenkins
2 2 (3.33%) GitLab
3 1 (1.67%) RStudio
3 1 (1.67%) TeamCity
General
1 17 (28.33%) Finance
2 8 (13.33%) Banking
3 7 (11.67%) Retail
4 5 (8.33%) Marketing
5 2 (3.33%) Investment Banking
6 1 (1.67%) Retail Banking
Libraries, Frameworks & Software Standards
1 13 (21.67%) TensorFlow
2 12 (20.00%) PySpark
3 10 (16.67%) Natural Language Processing
3 10 (16.67%) scikit-learn
4 7 (11.67%) Pandas
5 5 (8.33%) NumPy
6 4 (6.67%) MLlib
6 4 (6.67%) PyMC3
6 4 (6.67%) Theano
7 3 (5.00%) Anaconda
7 3 (5.00%) Kafka
7 3 (5.00%) SpaCy
7 3 (5.00%) Torch
8 2 (3.33%) SciPy
9 1 (1.67%) Caffe
9 1 (1.67%) Keras
9 1 (1.67%) XGBoost
Miscellaneous
1 16 (26.67%) Algorithms
2 10 (16.67%) Analytical Skills
3 3 (5.00%) User Experience
4 2 (3.33%) Data Structures
4 2 (3.33%) Fintech
5 1 (1.67%) Greenfield Project
5 1 (1.67%) Social Media
Processes & Methodologies
1 59 (98.33%) Data Science
2 42 (70.00%) Machine Learning
3 25 (41.67%) Analytics
4 17 (28.33%) Mathematics
5 14 (23.33%) Computer Science
5 14 (23.33%) Statistics
6 13 (21.67%) Statistical Modelling
7 11 (18.33%) Artificial Intelligence
7 11 (18.33%) Deep Learning
8 10 (16.67%) Predictive Analytics
8 10 (16.67%) Visualisation
9 9 (15.00%) Data Analysis
9 9 (15.00%) Prototyping
10 7 (11.67%) Agile Software Development
11 6 (10.00%) Performance Optimisation
12 5 (8.33%) Problem-Solving
12 5 (8.33%) Software Engineering
13 4 (6.67%) Data Management
13 4 (6.67%) Econometrics
13 4 (6.67%) Refactoring
Programming Languages
1 50 (83.33%) Python
2 19 (31.67%) SQL
3 13 (21.67%) R
4 8 (13.33%) Scala
5 7 (11.67%) Java
6 2 (3.33%) Bash Shell
6 2 (3.33%) C++
6 2 (3.33%) Cypher
7 1 (1.67%) MATLAB
7 1 (1.67%) VBA
Qualifications
1 17 (28.33%) PhD
2 14 (23.33%) Degree
3 12 (20.00%) Master's Degree
4 4 (6.67%) Security Cleared
5 2 (3.33%) SC Cleared
Quality Assurance & Compliance
1 3 (5.00%) QA
2 2 (3.33%) Data Quality
System Software
1 5 (8.33%) Docker
Systems Management
1 2 (3.33%) Kubernetes
2 1 (1.67%) EMC NetWorker
Vendors
1 6 (10.00%) Cloudera
1 6 (10.00%) Hortonworks
2 4 (6.67%) Google
3 2 (3.33%) Microsoft
3 2 (3.33%) Oracle
3 2 (3.33%) Tableau
4 1 (1.67%) Adobe
4 1 (1.67%) Bloomberg
4 1 (1.67%) Reuters
4 1 (1.67%) Salesforce.com