Period
to 16 August 2018

The following table provides summary statistics for contract job vacancies advertised in Hertfordshire with a requirement for Open Source skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Open Source over the 6 months to 16 August 2018 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.

Open Source
East of England > Hertfordshire
6 months to
16 Aug 2018
Same period 2017 Same period 2016
Rank 77 69 78
Rank change year-on-year -8 +9 +4
Contract jobs citing Open Source 17 21 11
As % of all contract IT jobs advertised in Hertfordshire 1.08% 1.63% 0.76%
As % of the Processes & Methodologies category 1.32% 2.00% 0.96%
Number of daily rates quoted 8 15 4
Hertfordshire median daily rate £388 £550 £569
Median daily rate % change year-on-year -29.55% -3.30% +22.97%
10th Percentile £293 £418 £526
90th Percentile £649 £575 £623
East of England median daily rate £525 £525 £350
% change year-on-year - +50.00% -12.50%
Number of hourly rates quoted 0 0 0
Hertfordshire median hourly rate - - -
East of England median hourly rate - - £43.75

Open Source is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Hertfordshire with a requirement for process or methodology skills.

All Process and Methodology Skills
Hertfordshire
Contract vacancies with a requirement for process or methodology skills 1,289 1,049 1,150
As % of all contract IT jobs advertised in Hertfordshire 81.89% 81.38% 79.20%
Number of daily rates quoted 742 544 616
Hertfordshire median daily rate £413 £411 £400
Median daily rate % change year-on-year +0.30% +2.81% +5.12%
10th Percentile £210 £213 £220
90th Percentile £569 £588 £550
East of England median daily rate £438 £425 £400
% change year-on-year +2.94% +6.25% +3.23%
Number of hourly rates quoted 94 66 47
Hertfordshire median hourly rate £17.32 £16.82 £25.00
Median hourly rate % change year-on-year +2.97% -32.72% +35.14%
10th Percentile £11.10 £11.76 £9.70
90th Percentile £46.25 £45.75 £53.75
East of England median hourly rate £17.50 £26.00 £25.00
% change year-on-year -32.69% +4.00% +9.89%

Open Source
Job Vacancy Trend in Hertfordshire

Job postings citing Open Source as a percentage of all IT jobs advertised in Hertfordshire.

Job vacancy trend for Open Source in Hertfordshire

Open Source
Contractor Daily Rate Trend in Hertfordshire

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Open Source in Hertfordshire.

Contractor daily rate trend for Open Source in Hertfordshire

Open Source
Contractor Daily Rate Histogram in Hertfordshire

The daily rate distribution of IT jobs citing Open Source in Hertfordshire over the 6 months to 16 August 2018.

Contractor daily rate histogram for Open Source in Hertfordshire

Open Source
Contract Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Open Source within the Hertfordshire region over the 6 months to 16 August 2018. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Watford +3 8 £363 -27.50% 2
St Albans -2 2 £288 -37.84% 2
Hemel Hempstead - 1 £400 - 1
Open Source
East of England

For the 6 months to 16 August 2018, IT contractor jobs citing Open Source also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the Hertfordshire region with a requirement for Open Source.

1 11 (64.71%) OO
2 9 (52.94%) MVC
2 9 (52.94%) HTML
2 9 (52.94%) JavaScript
2 9 (52.94%) PHP
2 9 (52.94%) CSS
2 9 (52.94%) Relational Database
3 8 (47.06%) Linux
3 8 (47.06%) E-Commerce
4 7 (41.18%) HTTP
4 7 (41.18%) XSL
4 7 (41.18%) Apache
4 7 (41.18%) MySQL
4 7 (41.18%) LAMP
4 7 (41.18%) OO PHP
4 7 (41.18%) Zend
4 7 (41.18%) Magento
4 7 (41.18%) XHTML
5 6 (35.29%) Java
6 5 (29.41%) Web Services
6 5 (29.41%) Hadoop
7 4 (23.53%) Apache Hive
7 4 (23.53%) Git (software)
7 4 (23.53%) Mathematics
7 4 (23.53%) Apache Pig
7 4 (23.53%) MapReduce
7 4 (23.53%) Apache Spark
7 4 (23.53%) Machine Learning
7 4 (23.53%) Big Data
7 4 (23.53%) Python

Open Source
Co-occurring IT Skills in Hertfordshire 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 7 (41.18%) Apache
2 4 (23.53%) Apache Pig
2 4 (23.53%) Apache Spark
3 1 (5.88%) JBoss
3 1 (5.88%) nginx
Business Applications
1 7 (41.18%) Magento
Cloud Services
1 3 (17.65%) Amazon AWS
2 1 (5.88%) Google Cloud Platform
2 1 (5.88%) IaaS
2 1 (5.88%) Microsoft Azure
2 1 (5.88%) PaaS
Communications & Networking
1 7 (41.18%) HTTP
2 1 (5.88%) Firewall
Database & Business Intelligence
1 9 (52.94%) Relational Database
2 7 (41.18%) MySQL
3 5 (29.41%) Hadoop
4 4 (23.53%) Apache Hive
4 4 (23.53%) Big Data
5 2 (11.76%) RDBMS
6 1 (5.88%) MongoDB
6 1 (5.88%) SQL Server
Development Applications
1 4 (23.53%) Git (software)
2 2 (11.76%) JUnit
3 1 (5.88%) EasyMock
3 1 (5.88%) Hamcrest
3 1 (5.88%) Mockito
3 1 (5.88%) Selenium
3 1 (5.88%) SoapUI
3 1 (5.88%) Vagrant
General
1 2 (11.76%) Finance
1 2 (11.76%) Retail
2 1 (5.88%) Telecoms
Job Titles
1 10 (58.82%) Developer
2 7 (41.18%) Magento Developer
3 4 (23.53%) Data Scientist
4 2 (11.76%) C# Developer
4 2 (11.76%) Full Stack Developer
4 2 (11.76%) Senior Data Scientist
5 1 (5.88%) ASP.NET Developer
5 1 (5.88%) C# ASP.NET Developer
5 1 (5.88%) Java Engineer
5 1 (5.88%) Java Software Engineer
5 1 (5.88%) Linux Administrator
5 1 (5.88%) Linux Systems Administrator
5 1 (5.88%) Senior Java Engineer
5 1 (5.88%) Senior Java Software Engineer
5 1 (5.88%) Senior Software Engineer
5 1 (5.88%) Senior Test Automation Engineer
5 1 (5.88%) Senior Test Engineer
5 1 (5.88%) Solaris Administrator
5 1 (5.88%) Solaris Systems Administrator
5 1 (5.88%) Test Engineer
Libraries, Frameworks & Software Standards
1 9 (52.94%) CSS
1 9 (52.94%) HTML
2 7 (41.18%) LAMP
2 7 (41.18%) XHTML
2 7 (41.18%) XSL
3 5 (29.41%) Web Services
4 2 (11.76%) .NET
4 2 (11.76%) ASP.NET
4 2 (11.76%) ASP.NET MVC
4 2 (11.76%) CSS3
4 2 (11.76%) HTML5
4 2 (11.76%) Middleware
4 2 (11.76%) REST
5 1 (5.88%) Deeplearning4j
5 1 (5.88%) LEMP Stack
5 1 (5.88%) MXNet
5 1 (5.88%) Natural Language Processing
5 1 (5.88%) Swing
5 1 (5.88%) TensorFlow
5 1 (5.88%) Theano
Miscellaneous
1 3 (17.65%) Algorithms
1 3 (17.65%) Data Structures
2 1 (5.88%) Computer Science
2 1 (5.88%) Enterprise Software
2 1 (5.88%) Public Cloud
Operating Systems
1 8 (47.06%) Linux
2 1 (5.88%) Solaris
Processes & Methodologies
1 11 (64.71%) OO
2 9 (52.94%) MVC
3 8 (47.06%) E-Commerce
4 7 (41.18%) OO PHP
5 4 (23.53%) Data Science
5 4 (23.53%) Machine Learning
5 4 (23.53%) MapReduce
5 4 (23.53%) Mathematics
6 3 (17.65%) Mathematical Modelling
6 3 (17.65%) Software Engineering
7 2 (11.76%) Agile Software Development
7 2 (11.76%) Visualisation
8 1 (5.88%) Artificial Intelligence
8 1 (5.88%) Logistics
8 1 (5.88%) Migration
8 1 (5.88%) Neural Network
8 1 (5.88%) Problem-Solving
8 1 (5.88%) Recommender Systems
8 1 (5.88%) Stakeholder Management
8 1 (5.88%) Support Vector Machines
Programming Languages
1 9 (52.94%) JavaScript
1 9 (52.94%) PHP
2 6 (35.29%) Java
3 4 (23.53%) Python
4 2 (11.76%) C#
4 2 (11.76%) R
4 2 (11.76%) Scala
4 2 (11.76%) SQL
5 1 (5.88%) Bash Shell
5 1 (5.88%) Bourne shell
5 1 (5.88%) Perl
5 1 (5.88%) PowerShell
5 1 (5.88%) Shell Script
5 1 (5.88%) VB
5 1 (5.88%) VBScript
Qualifications
1 2 (11.76%) SC Cleared
1 2 (11.76%) Security Cleared
2 1 (5.88%) Degree
2 1 (5.88%) Numerate Degree
Quality Assurance & Compliance
1 1 (5.88%) Data Quality
1 1 (5.88%) GCP
System Software
1 1 (5.88%) Active Directory
1 1 (5.88%) Virtual Servers
1 1 (5.88%) VMware Infrastructure
Vendors
1 7 (41.18%) Zend
2 2 (11.76%) Microsoft
3 1 (5.88%) Google
3 1 (5.88%) VMware