Period
to 13 December 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 13 December 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
13 Dec 2018
Same period 2017 Same period 2016
Rank 88 76 73
Rank change year-on-year -12 -3 +6
Contract jobs citing Open Source 13 27 30
As % of all contract IT jobs advertised in Hertfordshire 0.81% 1.68% 2.13%
As % of the Processes & Methodologies category 0.99% 2.03% 2.72%
Number of daily rates quoted 11 18 16
Hertfordshire median daily rate £413 £456 £395
Median daily rate % change year-on-year -9.59% +15.51% -21.00%
10th Percentile £275 £388 £241
90th Percentile £500 £569 £594
East of England median daily rate £525 £500 £418
% change year-on-year +5.00% +19.76% -16.50%
Number of hourly rates quoted 0 0 0
Hertfordshire median hourly rate - - -
East of England median hourly rate £35.00 - £42.75

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 1,317 1,329 1,102
As % of all contract IT jobs advertised in Hertfordshire 82.00% 82.91% 78.32%
Number of daily rates quoted 805 675 629
Hertfordshire median daily rate £425 £400 £413
Median daily rate % change year-on-year +6.25% -3.03% -
10th Percentile £205 £206 £223
90th Percentile £569 £575 £550
East of England median daily rate £450 £425 £400
% change year-on-year +5.88% +6.25% -
Number of hourly rates quoted 72 63 58
Hertfordshire median hourly rate £17.71 £19.00 £29.75
Median hourly rate % change year-on-year -6.82% -36.13% +39.98%
10th Percentile £12.51 £13.00 £10.00
90th Percentile £48.18 £47.00 £53.75
East of England median hourly rate £17.97 £33.33 £31.50
% change year-on-year -46.08% +5.81% +29.55%

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 13 December 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 13 December 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
St Albans +4 3 £300 -35.14% 1
Hatfield +4 2 £413 -25.84% 2
Welwyn Garden City - 2 - -
Watford -9 1 £300 -29.41% 3
Hemel Hempstead - 1 £275 -
Open Source
East of England

For the 6 months to 13 December 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 8 (61.54%) Web Services
2 7 (53.85%) ASP.NET
2 7 (53.85%) C#
2 7 (53.85%) .NET
3 6 (46.15%) SQL
3 6 (46.15%) Java
3 6 (46.15%) SQL Server
3 6 (46.15%) OO
4 5 (38.46%) Agile Software Development
4 5 (38.46%) Microsoft
5 4 (30.77%) MVC
5 4 (30.77%) Finance
5 4 (30.77%) ASP.NET MVC
5 4 (30.77%) Amazon AWS
5 4 (30.77%) PHP
6 3 (23.08%) Apache Spark
6 3 (23.08%) Apache Hive
6 3 (23.08%) Big Data
6 3 (23.08%) Hadoop
6 3 (23.08%) Python
6 3 (23.08%) SOA
6 3 (23.08%) CSS
6 3 (23.08%) JavaScript
6 3 (23.08%) HTML
6 3 (23.08%) T-SQL
7 2 (15.38%) Oracle
7 2 (15.38%) JUnit
7 2 (15.38%) ODBC
7 2 (15.38%) Linux
7 2 (15.38%) Kerberos

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 3 (23.08%) Apache Spark
2 2 (15.38%) Apache Solr
2 2 (15.38%) Jupyter
2 2 (15.38%) Oracle SOA Suite
2 2 (15.38%) SharePoint
3 1 (7.69%) Apache Pig
3 1 (7.69%) JBoss
Cloud Services
1 4 (30.77%) Amazon AWS
2 2 (15.38%) Office 365
3 1 (7.69%) Microsoft Azure
3 1 (7.69%) npm
Communications & Networking
1 2 (15.38%) Kerberos
2 1 (7.69%) HTTP
Database & Business Intelligence
1 6 (46.15%) SQL Server
2 3 (23.08%) Apache Hive
2 3 (23.08%) Big Data
2 3 (23.08%) Hadoop
3 2 (15.38%) HBase
3 2 (15.38%) RDBMS
3 2 (15.38%) Relational Database
3 2 (15.38%) Sqoop
Development Applications
1 2 (15.38%) JUnit
2 1 (7.69%) EasyMock
2 1 (7.69%) Git (software)
2 1 (7.69%) gulp
2 1 (7.69%) Hamcrest
2 1 (7.69%) Mockito
2 1 (7.69%) Selenium
2 1 (7.69%) SoapUI
General
1 4 (30.77%) Finance
Job Titles
1 8 (61.54%) Developer
2 6 (46.15%) .NET Developer
3 4 (30.77%) C# Developer
4 3 (23.08%) C# .NET Developer
4 3 (23.08%) SQL Developer
4 3 (23.08%) T-SQL Developer
5 2 (15.38%) Big Data Consultant
5 2 (15.38%) Consultant
5 2 (15.38%) Data Consultant
5 2 (15.38%) Hadoop Consultant
6 1 (7.69%) ASP.NET Developer
6 1 (7.69%) Data Scientist
6 1 (7.69%) Java Software Engineer
6 1 (7.69%) Senior Java Software Engineer
6 1 (7.69%) Senior Software Engineer
6 1 (7.69%) Senior Test Automation Engineer
6 1 (7.69%) Senior Test Engineer
6 1 (7.69%) Software Engineer
6 1 (7.69%) Test Engineer
6 1 (7.69%) UI Developer
Libraries, Frameworks & Software Standards
1 8 (61.54%) Web Services
2 7 (53.85%) .NET
2 7 (53.85%) ASP.NET
3 4 (30.77%) ASP.NET MVC
4 3 (23.08%) CSS
4 3 (23.08%) HTML
5 2 (15.38%) Anaconda
5 2 (15.38%) Apache Tez
5 2 (15.38%) HTML5
5 2 (15.38%) JSON
5 2 (15.38%) Kafka
5 2 (15.38%) Middleware
5 2 (15.38%) ODBC
5 2 (15.38%) REST
5 2 (15.38%) RESTful
6 1 (7.69%) ASP.NET MVC 4
6 1 (7.69%) CSS3
6 1 (7.69%) GWT
6 1 (7.69%) Node.js
6 1 (7.69%) Twitter Bootstrap
Miscellaneous
1 1 (7.69%) Algorithms
1 1 (7.69%) Data Structures
Operating Systems
1 2 (15.38%) Linux
Processes & Methodologies
1 6 (46.15%) OO
2 5 (38.46%) Agile Software Development
3 4 (30.77%) MVC
4 3 (23.08%) SOA
5 2 (15.38%) Collaborative Working
5 2 (15.38%) DevOps
5 2 (15.38%) Infrastructure Engineering
5 2 (15.38%) Mobile Development
5 2 (15.38%) Software Engineering
5 2 (15.38%) Translating Business Requirements
6 1 (7.69%) Data Science
6 1 (7.69%) Machine Learning
6 1 (7.69%) MapReduce
6 1 (7.69%) Mathematical Modelling
6 1 (7.69%) Mathematics
6 1 (7.69%) Software Testing
6 1 (7.69%) SOLID
6 1 (7.69%) Test Automation
6 1 (7.69%) Test Scripting
6 1 (7.69%) UML
Programming Languages
1 7 (53.85%) C#
2 6 (46.15%) Java
2 6 (46.15%) SQL
3 4 (30.77%) PHP
4 3 (23.08%) JavaScript
4 3 (23.08%) Python
4 3 (23.08%) T-SQL
5 1 (7.69%) ES6
5 1 (7.69%) ES7
Qualifications
1 2 (15.38%) SC Cleared
1 2 (15.38%) Security Cleared
System Software
1 2 (15.38%) Apache Flume
1 2 (15.38%) Apache ZooKeeper
1 2 (15.38%) HDFS
2 1 (7.69%) Active Directory
Systems Management
1 2 (15.38%) Ambari
1 2 (15.38%) Hadoop YARN
1 2 (15.38%) Oozie
Vendors
1 5 (38.46%) Microsoft
2 2 (15.38%) Alteryx
2 2 (15.38%) Hortonworks
2 2 (15.38%) MicroStrategy
2 2 (15.38%) Oracle
2 2 (15.38%) Tableau
2 2 (15.38%) Xamarin
3 1 (7.69%) Google