Period
to 25 September 2018

The following table provides summary statistics for contract job vacancies advertised in Hertfordshire with a requirement for JavaScript skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited JavaScript over the 6 months to 25 September 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.

JavaScript (including ECMAScript)
East of England > Hertfordshire
6 months to
25 Sep 2018
Same period 2017 Same period 2016
Rank 8 13 16
Rank change year-on-year +5 +3 -8
Contract jobs citing JavaScript 159 124 108
As % of all contract IT jobs advertised in Hertfordshire 9.69% 8.82% 7.67%
As % of the Programming Languages category 29.39% 23.18% 22.13%
Number of daily rates quoted 110 119 45
Hertfordshire median daily rate £400 £425 £375
Median daily rate % change year-on-year -5.88% +13.33% +3.45%
10th Percentile £162 £297 £263
90th Percentile £539 £470 £506
East of England median daily rate £425 £375 £375
% change year-on-year +13.33% - +7.14%
Number of hourly rates quoted 0 1 5
Hertfordshire median hourly rate - £15.00 £43.00
Median hourly rate % change year-on-year - -65.12% -
East of England median hourly rate £35.29 £47.50 £31.70
% change year-on-year -25.71% +49.84% -20.75%

JavaScript is in the Programming Languages 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 coding skills.

All Programming Languages
Hertfordshire
Contract vacancies with a requirement for coding skills 541 535 488
As % of all contract IT jobs advertised in Hertfordshire 32.97% 38.05% 34.66%
Number of daily rates quoted 347 287 264
Hertfordshire median daily rate £400 £400 £375
Median daily rate % change year-on-year - +6.67% -
10th Percentile £250 £278 £227
90th Percentile £556 £588 £525
East of England median daily rate £425 £400 £375
% change year-on-year +6.25% +6.67% +1.25%
Number of hourly rates quoted 14 21 24
Hertfordshire median hourly rate £47.00 £20.76 £49.75
Median hourly rate % change year-on-year +126.45% -58.28% +53.08%
10th Percentile £17.85 £15.00 £19.73
90th Percentile £55.13 £46.50 £53.75
East of England median hourly rate £44.00 £40.00 £39.50
% change year-on-year +10.00% +1.27% +5.33%

JavaScript
Job Vacancy Trend in Hertfordshire

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

Job vacancy trend for JavaScript in Hertfordshire

JavaScript
Contractor Daily Rate Trend in Hertfordshire

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

Contractor daily rate trend for JavaScript in Hertfordshire

JavaScript
Contractor Daily Rate Histogram in Hertfordshire

The daily rate distribution of IT jobs citing JavaScript in Hertfordshire over the 6 months to 25 September 2018.

Contractor daily rate histogram for JavaScript in Hertfordshire

JavaScript
Contractor Hourly Rate Trend in Hertfordshire

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

Contractor hourly rate trend for JavaScript in Hertfordshire

JavaScript
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 JavaScript within the Hertfordshire region over the 6 months to 25 September 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 +13 47 £378 +0.67% 18
Stevenage +10 26 £450 - 7
Welwyn Garden City 0 17 £538 +13.16% 3
Hatfield +7 9 £425 +6.25% 6
St Albans +3 9 £313 -19.87% 9
Hemel Hempstead -10 9 £425 +18.06% 5
Rickmansworth -13 9 £344 -7.09%
Borehamwood 0 7 £475 +72.73% 5
Berkhamsted - 1 - - 1
JavaScript
East of England

For the 6 months to 25 September 2018, IT contractor jobs citing JavaScript 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 JavaScript.

1 86 (54.09%) HTML
1 86 (54.09%) CSS
2 69 (43.40%) C#
3 60 (37.74%) .NET
4 53 (33.33%) Java
5 51 (32.08%) Web Services
6 50 (31.45%) Agile Software Development
7 45 (28.30%) jQuery
8 41 (25.79%) Microsoft
9 40 (25.16%) Visual Studio
10 39 (24.53%) MVC
11 36 (22.64%) Software Engineering
11 36 (22.64%) Node.js
12 35 (22.01%) REST
12 35 (22.01%) ASP.NET
12 35 (22.01%) SQL
13 34 (21.38%) HTML5
14 33 (20.75%) Linux
15 29 (18.24%) Windows
16 28 (17.61%) Git (software)
17 27 (16.98%) Eclipse
17 27 (16.98%) SQL Server
18 25 (15.72%) Web Development
18 25 (15.72%) AngularJS
18 25 (15.72%) Front End Development
19 24 (15.09%) PowerShell
19 24 (15.09%) TCP/IP
19 24 (15.09%) Spring
19 24 (15.09%) Scrum
20 22 (13.84%) Military

JavaScript
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 16 (10.06%) Apache
2 12 (7.55%) SharePoint
3 11 (6.92%) SharePoint 2013
4 8 (5.03%) Tomcat
5 7 (4.40%) CMS
6 5 (3.14%) WordPress
7 4 (2.52%) Elasticsearch
8 3 (1.89%) IIS
9 2 (1.26%) nginx
9 2 (1.26%) NServiceBus
Applications
1 2 (1.26%) Microsoft Office
1 2 (1.26%) Photoshop
2 1 (0.63%) Adobe Creative Suite
Business Applications
1 6 (3.77%) Magento
2 4 (2.52%) Dynamics CRM
3 1 (0.63%) Payment Gateway
Cloud Services
1 16 (10.06%) Amazon AWS
2 11 (6.92%) Office 365
3 9 (5.66%) Microsoft Azure
4 6 (3.77%) Google Analytics
5 3 (1.89%) Heroku
6 2 (1.26%) Adobe Creative Cloud
7 1 (0.63%) npm
Communications & Networking
1 24 (15.09%) TCP/IP
2 21 (13.21%) Ethernet
3 8 (5.03%) Internet
4 7 (4.40%) HTTP
5 4 (2.52%) DNS
5 4 (2.52%) Firewall
6 3 (1.89%) FTP
6 3 (1.89%) SSL
7 1 (0.63%) SMS
Database & Business Intelligence
1 27 (16.98%) SQL Server
2 17 (10.69%) MySQL
3 12 (7.55%) MongoDB
4 10 (6.29%) Relational Database
5 6 (3.77%) Endeca
6 5 (3.14%) Sybase ASE
7 3 (1.89%) PostgreSQL
7 3 (1.89%) RDBMS
8 2 (1.26%) SQL Server 2008
8 2 (1.26%) SQL Server Reporting Services
9 1 (0.63%) Data Warehouse
9 1 (0.63%) NoSQL
9 1 (0.63%) SQL Server 2012
9 1 (0.63%) SQL Server Integration Services
Development Applications
1 40 (25.16%) Visual Studio
2 28 (17.61%) Git (software)
3 27 (16.98%) Eclipse
4 21 (13.21%) NetBeans
5 13 (8.18%) Team Foundation Server
6 11 (6.92%) gulp
6 11 (6.92%) Visual Studio Code
7 9 (5.66%) Subversion
8 6 (3.77%) Maven
9 5 (3.14%) Octopus Deploy
10 4 (2.52%) Grunt
10 4 (2.52%) IntelliJ
10 4 (2.52%) webpack
11 3 (1.89%) GitLab
11 3 (1.89%) Gradle
11 3 (1.89%) Spock
12 2 (1.26%) Gatling
12 2 (1.26%) Geb
13 1 (0.63%) Jenkins
13 1 (0.63%) Vagrant
General
1 22 (13.84%) Military
2 18 (11.32%) Aerospace
3 14 (8.81%) Retail
4 12 (7.55%) Finance
5 9 (5.66%) Marketing
6 8 (5.03%) Law
7 3 (1.89%) Advertising
7 3 (1.89%) Back Office
8 2 (1.26%) Multimedia
9 1 (0.63%) Automotive
9 1 (0.63%) Publishing
9 1 (0.63%) Telecoms
Job Titles
1 107 (67.30%) Developer
2 22 (13.84%) Java Developer
3 21 (13.21%) .NET Developer
4 18 (11.32%) Front End Developer (Client-Side Developer)
5 13 (8.18%) Full Stack Developer
6 12 (7.55%) Consultant
6 12 (7.55%) SharePoint Developer
7 11 (6.92%) C# Developer
7 11 (6.92%) JavaScript Developer
8 10 (6.29%) Senior Developer
9 9 (5.66%) C# .NET Developer
10 8 (5.03%) ASP.NET Developer
10 8 (5.03%) React Developer
10 8 (5.03%) SQL Developer
11 6 (3.77%) Automation Engineer
11 6 (3.77%) C# ASP.NET Developer
11 6 (3.77%) Junior
11 6 (3.77%) Senior .NET Developer
11 6 (3.77%) Senior C# .NET Developer
11 6 (3.77%) Senior C# Developer
Libraries, Frameworks & Software Standards
1 86 (54.09%) CSS
1 86 (54.09%) HTML
2 60 (37.74%) .NET
3 51 (32.08%) Web Services
4 45 (28.30%) jQuery
5 36 (22.64%) Node.js
6 35 (22.01%) ASP.NET
6 35 (22.01%) REST
7 34 (21.38%) HTML5
8 25 (15.72%) AngularJS
9 24 (15.09%) Spring
10 21 (13.21%) Qt
11 16 (10.06%) ActiveX
11 16 (10.06%) DirectX
11 16 (10.06%) MFC
11 16 (10.06%) OpenGL
11 16 (10.06%) Spring Boot
12 15 (9.43%) React
13 14 (8.81%) RESTful
14 13 (8.18%) Hibernate
Miscellaneous
1 9 (5.66%) User Experience
2 8 (5.03%) Social Media
3 6 (3.77%) Greenfield Project
4 5 (3.14%) Algorithms
4 5 (3.14%) Internet of Things
5 3 (1.89%) Analytical Skills
6 1 (0.63%) Data Structures
Operating Systems
1 33 (20.75%) Linux
2 29 (18.24%) Windows
3 7 (4.40%) Windows Server
4 1 (0.63%) CentOS
4 1 (0.63%) Ubuntu
4 1 (0.63%) Windows Server 2012
Processes & Methodologies
1 50 (31.45%) Agile Software Development
2 39 (24.53%) MVC
3 36 (22.64%) Software Engineering
4 25 (15.72%) Front End Development
4 25 (15.72%) Web Development
5 24 (15.09%) Scrum
6 18 (11.32%) Mathematics
6 18 (11.32%) Workflow
7 16 (10.06%) TDD
8 13 (8.18%) E-Commerce
9 11 (6.92%) Microservices
9 11 (6.92%) OO
10 10 (6.29%) BDD
10 10 (6.29%) Kanban
10 10 (6.29%) OOP
11 9 (5.66%) Analytics
11 9 (5.66%) Domain-Driven Design
11 9 (5.66%) Migration
11 9 (5.66%) Unit Testing
12 8 (5.03%) SOA
Programming Languages
1 69 (43.40%) C#
2 53 (33.33%) Java
3 35 (22.01%) SQL
4 24 (15.09%) PowerShell
5 21 (13.21%) C++
6 18 (11.32%) PHP
7 16 (10.06%) GLSL
7 16 (10.06%) HLSL
8 15 (9.43%) T-SQL
9 9 (5.66%) Java 8
10 6 (3.77%) ES6
10 6 (3.77%) TypeScript
11 3 (1.89%) Groovy
11 3 (1.89%) Python
12 2 (1.26%) C
13 1 (0.63%) Go
Qualifications
1 21 (13.21%) Degree
2 19 (11.95%) Security Cleared
3 16 (10.06%) SC Cleared
Quality Assurance & Compliance
1 10 (6.29%) QA
2 3 (1.89%) WCAG
3 1 (0.63%) SLA
System Software
1 10 (6.29%) vSphere
2 8 (5.03%) Docker
3 4 (2.52%) VMware NSX
4 1 (0.63%) Active Directory
4 1 (0.63%) VMware Infrastructure
Systems Management
1 13 (8.18%) vRealize
1 13 (8.18%) vRealize Orchestrator
2 10 (6.29%) vCenter Server
3 4 (2.52%) Docker Swarm
3 4 (2.52%) Kubernetes
4 2 (1.26%) Mesos
Vendors
1 41 (25.79%) Microsoft
2 13 (8.18%) VMware
3 12 (7.55%) Nintex
4 8 (5.03%) Google
4 8 (5.03%) Sony
5 6 (3.77%) Zend
6 5 (3.14%) Adobe
6 5 (3.14%) Sybase
7 4 (2.52%) New Relic
8 3 (1.89%) hybris
9 1 (0.63%) Facebook
9 1 (0.63%) Omniture
9 1 (0.63%) Tableau
9 1 (0.63%) Twitter