Period
to 24 November 2017

The following table provides summary statistics for contract job vacancies advertised in Hertfordshire with a requirement for JSON skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited JSON over the 6 months to 24 November 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.

JSON
East of England > Hertfordshire
6 months to
24 Nov 2017
Same period 2016 Same period 2015
Rank 49 84 92
Rank change year-on-year +35 +8 -8
Contract jobs citing JSON 59 16 12
As % of all contract IT jobs advertised in Hertfordshire 3.70% 1.15% 0.74%
As % of the Libraries, Frameworks & Software Standards category 15.36% 4.92% 3.05%
Number of daily rates quoted 15 5 6
Hertfordshire median daily rate £425 £425 £313
Median daily rate % change year-on-year - +36.00% -19.22%
10th Percentile £380 £304 £294
90th Percentile £517 £495 £375
East of England median daily rate £513 £325 £350
% change year-on-year +57.69% -7.14% -6.67%
Number of hourly rates quoted 0 0 0
Hertfordshire median hourly rate - - -
East of England median hourly rate £62.50 £34.25 £31.52
% change year-on-year +82.48% +8.66% -15.95%

JSON is in the Software Libraries and Frameworks 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 technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
Hertfordshire
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 384 325 394
As % of all contract IT jobs advertised in Hertfordshire 24.09% 23.33% 24.46%
Number of daily rates quoted 213 195 209
Hertfordshire median daily rate £425 £400 £375
Median daily rate % change year-on-year +6.25% +6.67% +3.09%
10th Percentile £275 £263 £225
90th Percentile £585 £538 £525
East of England median daily rate £425 £400 £385
% change year-on-year +6.25% +3.90% +2.67%
Number of hourly rates quoted 1 2 12
Hertfordshire median hourly rate £15.00 £34.81 £20.94
Median hourly rate % change year-on-year -56.91% +66.29% -49.55%
East of England median hourly rate £42.75 £36.00 £37.50
% change year-on-year +18.75% -4.00% +7.91%

JSON
Job Vacancy Trend in Hertfordshire

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

Job vacancy trend for JSON in Hertfordshire

JSON
Contractor Daily Rate Trend in Hertfordshire

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

Contractor daily rate trend for JSON in Hertfordshire

JSON
Contractor Daily Rate Histogram in Hertfordshire

The daily rate distribution of IT jobs citing JSON in Hertfordshire over the 6 months to 24 November 2017.

Contractor daily rate histogram for JSON in Hertfordshire

JSON
Contractor Hourly Rate Trend in Hertfordshire

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing JSON in Hertfordshire.

Contractor hourly rate trend for JSON in Hertfordshire

JSON
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 JSON within the Hertfordshire region over the 6 months to 24 November 2017. 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 +18 37 £425 +15.25%
Rickmansworth -1 5 - -
Hatfield - 3 £400 -
Stevenage - 2 - -
Hemel Hempstead +5 1 £450 -
Waltham Cross - 1 £563 -
JSON
East of England

For the 6 months to 24 November 2017, IT contractor jobs citing JSON 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 Hertfordshire region with a requirement for JSON.

1 46 (77.97%) Java
2 41 (69.49%) SQL
3 38 (64.41%) Spring
4 37 (62.71%) MVC
5 36 (61.02%) JSP
6 34 (57.63%) Spring MVC
7 33 (55.93%) Finance
8 24 (40.68%) JavaScript
9 19 (32.20%) XML
10 17 (28.81%) HTML
11 14 (23.73%) .NET
11 14 (23.73%) Agile Software Development
12 12 (20.34%) Web Services
12 12 (20.34%) CSS
12 12 (20.34%) HTML5
13 11 (18.64%) XSLT
13 11 (18.64%) IBM
14 10 (16.95%) French Language
14 10 (16.95%) REST
15 9 (15.25%) RESTful
16 8 (13.56%) CSS3
16 8 (13.56%) TDD
16 8 (13.56%) Linux
16 8 (13.56%) J2EE
17 7 (11.86%) MySQL
17 7 (11.86%) JUnit
17 7 (11.86%) SQL Server
17 7 (11.86%) OO
17 7 (11.86%) Eclipse
17 7 (11.86%) Ruby

JSON
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 (11.86%) WebSphere
2 5 (8.47%) Apache
2 5 (8.47%) MQSeries
3 4 (6.78%) Tomcat
4 3 (5.08%) SharePoint
5 2 (3.39%) IIS
6 1 (1.69%) Adobe Experience Manager
6 1 (1.69%) CMS
6 1 (1.69%) OpenStack
6 1 (1.69%) WebSphere Application Server
Business Applications
1 5 (8.47%) Dynamics CRM
2 2 (3.39%) SAP HCM
3 1 (1.69%) Magento
3 1 (1.69%) Oracle Receivables
Cloud Services
1 5 (8.47%) SaaS
2 2 (3.39%) Amazon AWS
2 2 (3.39%) Boomi
2 2 (3.39%) Microsoft Azure
2 2 (3.39%) SuccessFactors
3 1 (1.69%) Google Cloud Platform
Communications & Networking
1 5 (8.47%) Internet
2 1 (1.69%) iSCSI
2 1 (1.69%) LDAP
2 1 (1.69%) OpenLDAP
2 1 (1.69%) SNMP
2 1 (1.69%) Wireless
Database & Business Intelligence
1 7 (11.86%) MySQL
1 7 (11.86%) SQL Server
2 4 (6.78%) PostgreSQL
2 4 (6.78%) Redis
2 4 (6.78%) Sybase ASE
3 3 (5.08%) RDBMS
3 3 (5.08%) Relational Database
3 3 (5.08%) SQL Server Reporting Services
4 2 (3.39%) MongoDB
5 1 (1.69%) DB2
5 1 (1.69%) Jackrabbit
Development Applications
1 7 (11.86%) Eclipse
1 7 (11.86%) Git (software)
1 7 (11.86%) JUnit
2 6 (10.17%) Visual Studio
3 5 (8.47%) Log4j
3 5 (8.47%) Mockito
3 5 (8.47%) Subversion
3 5 (8.47%) webpack
4 4 (6.78%) Bitbucket
4 4 (6.78%) Maven
4 4 (6.78%) Talend Open Studio
5 2 (3.39%) Protractor
6 1 (1.69%) Ant
6 1 (1.69%) NUnit
6 1 (1.69%) Team Foundation Server
6 1 (1.69%) WebDriver
6 1 (1.69%) WebSphere Studio Application Developer
General
1 33 (55.93%) Finance
2 10 (16.95%) French Language
3 4 (6.78%) Games
4 1 (1.69%) Retail
4 1 (1.69%) Telecoms
Job Titles
1 51 (86.44%) Developer
2 34 (57.63%) Java Developer
2 34 (57.63%) SQL Developer
3 31 (52.54%) JSP Developer
4 5 (8.47%) .NET Developer
4 5 (8.47%) Front End Developer (Client-Side Developer)
5 4 (6.78%) Integration Developer
5 4 (6.78%) Java Engineer
5 4 (6.78%) Technical Leader
6 3 (5.08%) .NET Team Leader
6 3 (5.08%) CRM Developer
6 3 (5.08%) Dynamics CRM Developer
6 3 (5.08%) Lead .NET Developer
6 3 (5.08%) Lead Developer
6 3 (5.08%) Team Leader
7 2 (3.39%) JavaScript Developer
7 2 (3.39%) Ruby Developer
7 2 (3.39%) Web Developer
7 2 (3.39%) WebSphere Developer
8 1 (1.69%) Consultant
Libraries, Frameworks & Software Standards
1 38 (64.41%) Spring
2 36 (61.02%) JSP
3 34 (57.63%) Spring MVC
4 19 (32.20%) XML
5 17 (28.81%) HTML
6 14 (23.73%) .NET
7 12 (20.34%) CSS
7 12 (20.34%) HTML5
7 12 (20.34%) Web Services
8 11 (18.64%) XSLT
9 10 (16.95%) REST
10 9 (15.25%) RESTful
11 8 (13.56%) CSS3
11 8 (13.56%) J2EE
12 6 (10.17%) WebSphere MQ
13 5 (8.47%) ASP.NET
13 5 (8.47%) EJB
13 5 (8.47%) JDBC
13 5 (8.47%) JMS
13 5 (8.47%) XSD
Miscellaneous
1 6 (10.17%) DataPower
2 4 (6.78%) Greenfield Project
3 3 (5.08%) Mobile App
4 2 (3.39%) Computer Science
5 1 (1.69%) Analytical Skills
Operating Systems
1 8 (13.56%) Linux
2 6 (10.17%) Unix
3 5 (8.47%) HPUX
3 5 (8.47%) Solaris
4 3 (5.08%) Windows
5 1 (1.69%) CentOS
5 1 (1.69%) Debian
5 1 (1.69%) Ubuntu
Processes & Methodologies
1 37 (62.71%) MVC
2 14 (23.73%) Agile Software Development
3 8 (13.56%) TDD
4 7 (11.86%) OO
5 6 (10.17%) API Development
5 6 (10.17%) E-Commerce
6 5 (8.47%) CRM
6 5 (8.47%) DevOps
6 5 (8.47%) Open Source
6 5 (8.47%) RAD
6 5 (8.47%) Web Development
7 4 (6.78%) BDD
7 4 (6.78%) Dependency Management
7 4 (6.78%) ETL
8 3 (5.08%) Configuration Management
8 3 (5.08%) Continuous Integration
8 3 (5.08%) Front End Development
8 3 (5.08%) Release Management
9 2 (3.39%) Test Automation
10 1 (1.69%) Cross-Browser Testing
Programming Languages
1 46 (77.97%) Java
2 41 (69.49%) SQL
3 24 (40.68%) JavaScript
4 7 (11.86%) Ruby
5 5 (8.47%) C#
6 4 (6.78%) T-SQL
7 3 (5.08%) VB.NET
8 2 (3.39%) Bash Shell
8 2 (3.39%) Perl
8 2 (3.39%) PowerShell
9 1 (1.69%) AWK
9 1 (1.69%) Python
9 1 (1.69%) sed
Qualifications
1 2 (3.39%) HND
1 2 (3.39%) Security Cleared
2 1 (1.69%) SC Cleared
Quality Assurance & Compliance
1 3 (5.08%) QA
System Software
1 1 (1.69%) VMware Infrastructure
Systems Management
1 6 (10.17%) WebSphere Cast Iron
2 4 (6.78%) Ansible
3 1 (1.69%) ZABBIX
Vendors
1 11 (18.64%) IBM
2 4 (6.78%) Microsoft
2 4 (6.78%) Sybase
2 4 (6.78%) Talend
3 3 (5.08%) Dell
3 3 (5.08%) Oracle
4 2 (3.39%) SAP
5 1 (1.69%) ATG
5 1 (1.69%) Blue Martini
5 1 (1.69%) Demandware
5 1 (1.69%) Elastic Path
5 1 (1.69%) EMC
5 1 (1.69%) Google
5 1 (1.69%) HP
5 1 (1.69%) hybris
5 1 (1.69%) Telerik
5 1 (1.69%) VMware