The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for NumPy skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited NumPy over the 3 months to 23 June 2017 with a comparison to the 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.

NumPy
London / City of London
3 months to
23 Jun 2017
Same period 2016 Same period 2015
Rank 163 163 197
Rank change year-on-year 0 +34  
Contract jobs citing NumPy 3 1 4
As % of all contract IT jobs advertised in the City of London 0.091% 0.030% 0.069%
As % of the Libraries, Frameworks & Software Standards category 0.24% 0.085% 0.23%
Number of daily rates quoted 3 0 4
Median daily rate £415 - £650
UK excluding London median daily rate £475 £388 -
% change year-on-year +22.58% -  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - £40.00 -

NumPy is in the industry standards, technical specifications and software library and framework skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the City of London with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
City of London
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 1250 1176 1729
As % of all contract IT job vacancies advertised in the City of London 37.88% 34.75% 29.75%
Number of daily rates quoted 1019 1007 1404
Median daily rate £500 £450 £430
Median daily rate % change year-on-year +11.00% +4.65%  
90% offered a daily rate of more than £360 £325 £315
10% offered a daily rate of more than £625 £575 £600
UK excluding London median daily rate £400 £375 £350
% change year-on-year +6.66% +7.14%  
Number of hourly rates quoted 6 1 12
Median hourly rate £24.86 £20.00 £24.23
Median hourly rate % change year-on-year +24.30% -17.45%  
90% offered a hourly rate of more than £21.50 £20.00 £15.64
10% offered a hourly rate of more than £26.80 £20.00 £187.50
UK excluding London median hourly rate £42.50 £36.00 £40.00
% change year-on-year +18.05% -10.00%  

NumPy
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing NumPy as a proportion of all contract or permanent IT jobs with a match in the Libraries, Frameworks & Software Standards category.

Job vacancy trend for NumPy in the City of London

NumPy
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 NumPy in the City of London.

Contractor daily rate trend for NumPy in the City of London

NumPy
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing NumPy in the City of London over the 3 months to 23 June 2017.

Contractor daily rate histogram for NumPy in the City of London

For the 6 months to 23 June 2017, IT contractor jobs citing NumPy also mentioned the following 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 with a requirement for NumPy.

1 11 (91.67%) Python
1 11 (91.67%) Pandas
2 7 (58.33%) Git (software)
3 5 (41.67%) REST
3 5 (41.67%) scikit-learn
4 4 (33.33%) Matplotlib
4 4 (33.33%) C#
4 4 (33.33%) JavaScript
4 4 (33.33%) SQL
4 4 (33.33%) .NET
4 4 (33.33%) Data Modelling
4 4 (33.33%) OO
5 3 (25.00%) Mathematics
5 3 (25.00%) Statistics
5 3 (25.00%) Django
5 3 (25.00%) RESTful
5 3 (25.00%) SciPy
5 3 (25.00%) Web Services
5 3 (25.00%) Linux
5 3 (25.00%) C++
5 3 (25.00%) PostgreSQL
5 3 (25.00%) Agile Software Development
5 3 (25.00%) Machine Learning
5 3 (25.00%) Analytical Skills
5 3 (25.00%) DevOps
5 3 (25.00%) Jupyter
6 2 (16.67%) Computer Vision
6 2 (16.67%) TensorFlow
6 2 (16.67%) Bokeh
6 2 (16.67%) React

NumPy
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 3 (25.00%) Jupyter
2 1 (8.33%) Apache Pig
Applications
1 1 (8.33%) Weka
Cloud Services
1 1 (8.33%) Amazon AWS
1 1 (8.33%) Amazon EC2
1 1 (8.33%) AWS Lambda
1 1 (8.33%) GitHub
1 1 (8.33%) Google Cloud Platform
Database & Business Intelligence
1 3 (25.00%) PostgreSQL
2 2 (16.67%) Data Mining
2 2 (16.67%) MongoDB
2 2 (16.67%) SQL Server
3 1 (8.33%) Apache Cassandra
3 1 (8.33%) Apache Hive
3 1 (8.33%) HBase
3 1 (8.33%) NoSQL
Development Applications
1 7 (58.33%) Git (software)
2 2 (16.67%) Bower
2 2 (16.67%) Jenkins
2 2 (16.67%) Moq
2 2 (16.67%) MSTest
2 2 (16.67%) NUnit
2 2 (16.67%) Rhino Mocks
General
1 2 (16.67%) Finance
2 1 (8.33%) Marketing
Job Titles
1 6 (50.00%) Developer
2 4 (33.33%) Data Scientist
3 3 (25.00%) Django Developer
3 3 (25.00%) Python Developer
4 2 (16.67%) C# Developer
4 2 (16.67%) JavaScript Developer
4 2 (16.67%) Python/Django Developer
5 1 (8.33%) AWS Developer
5 1 (8.33%) Digital Developer
5 1 (8.33%) Machine Learning Engineer
5 1 (8.33%) Quantitative Strategist
5 1 (8.33%) Senior C# Developer
5 1 (8.33%) Senior Developer
Libraries, Frameworks & Software Standards
1 11 (91.67%) Pandas
2 5 (41.67%) REST
2 5 (41.67%) scikit-learn
3 4 (33.33%) .NET
3 4 (33.33%) Matplotlib
4 3 (25.00%) Django
4 3 (25.00%) RESTful
4 3 (25.00%) SciPy
4 3 (25.00%) Web Services
5 2 (16.67%) AngularJS
5 2 (16.67%) CSS
5 2 (16.67%) Flask
5 2 (16.67%) HTML
5 2 (16.67%) Node.js
5 2 (16.67%) React
5 2 (16.67%) TensorFlow
5 2 (16.67%) Twitter Bootstrap
5 2 (16.67%) WCF
5 2 (16.67%) WPF
5 2 (16.67%) XML
Miscellaneous
1 3 (25.00%) Analytical Skills
2 2 (16.67%) Derivative
3 1 (8.33%) Algorithms
3 1 (8.33%) Greenfield Project
Operating Systems
1 3 (25.00%) Linux
2 1 (8.33%) Android
2 1 (8.33%) Apple iOS
2 1 (8.33%) Windows
Processes & Methodologies
1 4 (33.33%) Data Modelling
1 4 (33.33%) OO
2 3 (25.00%) Agile Software Development
2 3 (25.00%) DevOps
2 3 (25.00%) Machine Learning
2 3 (25.00%) Mathematics
2 3 (25.00%) Statistics
3 2 (16.67%) Asset Management
3 2 (16.67%) Computer Vision
3 2 (16.67%) Continuous Improvement
3 2 (16.67%) Continuous Integration
3 2 (16.67%) Greeks
3 2 (16.67%) MVVM
3 2 (16.67%) Neural Network
3 2 (16.67%) Performance Tuning
3 2 (16.67%) Refactoring
3 2 (16.67%) Regression Analysis
3 2 (16.67%) Stress Testing
3 2 (16.67%) Test Automation
3 2 (16.67%) Unit Testing
Programming Languages
1 11 (91.67%) Python
2 4 (33.33%) C#
2 4 (33.33%) JavaScript
2 4 (33.33%) SQL
3 3 (25.00%) C++
4 2 (16.67%) Java
4 2 (16.67%) R
4 2 (16.67%) Scala
4 2 (16.67%) TypeScript
5 1 (8.33%) MATLAB
Qualifications
1 2 (16.67%) CFA
2 1 (8.33%) Degree
2 1 (8.33%) PhD
2 1 (8.33%) SC Cleared
2 1 (8.33%) Security Cleared
System Software
1 1 (8.33%) Docker
Vendors
1 2 (16.67%) Bloomberg
1 2 (16.67%) Tableau
2 1 (8.33%) Google