Period
to 19 April 2018

The following table provides summary statistics for contract job vacancies advertised in Slough 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 19 April 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)
Berkshire > Slough
6 months to
19 Apr 2018
Same period 2017 Same period 2016
Rank 6 13 14
Rank change year-on-year +7 +1 +1
Contract jobs citing JavaScript 31 21 28
As % of all contract IT jobs advertised in Slough 11.44% 8.14% 6.36%
As % of the Programming Languages category 39.24% 25.30% 29.17%
Number of daily rates quoted 23 18 37
Slough median daily rate £400 £406 £350
Median daily rate % change year-on-year -1.54% +16.07% +18.64%
10th Percentile £376 £366 £245
90th Percentile £538 £450 £438
Berkshire median daily rate £380 £400 £375
% change year-on-year -5.00% +6.67% +7.14%
Number of hourly rates quoted 0 0 1
Slough median hourly rate - - £175.00
Berkshire median hourly rate - £46.00 £27.50
% change year-on-year - +67.27% -22.54%

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 Slough with a requirement for coding skills.

All Programming Languages
Slough
Contract vacancies with a requirement for coding skills 79 83 96
As % of all contract IT jobs advertised in Slough 29.15% 32.17% 21.82%
Number of daily rates quoted 57 60 63
Slough median daily rate £425 £400 £350
Median daily rate % change year-on-year +6.25% +14.29% +3.32%
10th Percentile £325 £310 £170
90th Percentile £540 £494 £456
Berkshire median daily rate £400 £400 £400
Number of hourly rates quoted 3 3 3
Slough median hourly rate £41.00 £41.00 £42.50
Median hourly rate % change year-on-year - -3.53% +30.77%
10th Percentile £40.50 £40.50 £19.05
90th Percentile £41.50 £41.50 £158.75
Berkshire median hourly rate £30.00 £24.75 £27.50
% change year-on-year +21.21% -10.00% -23.61%

JavaScript
Job Vacancy Trend in Slough

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

Job vacancy trend for JavaScript in Slough

JavaScript
Contractor Daily Rate Trend in Slough

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

Contractor daily rate trend for JavaScript in Slough

JavaScript
Contractor Daily Rate Histogram in Slough

The daily rate distribution of IT jobs citing JavaScript in Slough over the 6 months to 19 April 2018.

Contractor daily rate histogram for JavaScript in Slough

JavaScript
Contractor Hourly Rate Trend in Slough

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

Contractor hourly rate trend for JavaScript in Slough

For the 6 months to 19 April 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 Slough region with a requirement for JavaScript.

1 17 (54.84%) HTML
2 16 (51.61%) CSS
3 12 (38.71%) PHP
4 10 (32.26%) HTML5
4 10 (32.26%) Front End Development
5 9 (29.03%) Magento
5 9 (29.03%) CSS3
6 7 (22.58%) jQuery
6 7 (22.58%) E-Commerce
6 7 (22.58%) Finance
7 6 (19.35%) TDD
8 5 (16.13%) SQL
8 5 (16.13%) SOAP
8 5 (16.13%) User Experience
8 5 (16.13%) REST
8 5 (16.13%) Customer-Centricity
9 4 (12.90%) React
9 4 (12.90%) Analytical Skills
9 4 (12.90%) Problem-Solving
9 4 (12.90%) OO PHP
9 4 (12.90%) AngularJS
9 4 (12.90%) Agile Software Development
9 4 (12.90%) RESTful
9 4 (12.90%) Web Services
9 4 (12.90%) Linux
9 4 (12.90%) OO
9 4 (12.90%) Netcool
9 4 (12.90%) Telecoms
9 4 (12.90%) IBM
10 3 (9.68%) MVC

JavaScript
Co-occurring IT Skills in Slough 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 (9.68%) Drupal
2 2 (6.45%) Elasticsearch
3 1 (3.23%) Apache Spark
3 1 (3.23%) Confluence
3 1 (3.23%) WebLogic
Applications
1 3 (9.68%) InVision
1 3 (9.68%) OmniGraffle
1 3 (9.68%) UXPin
Business Applications
1 9 (29.03%) Magento
2 3 (9.68%) Payment Gateway
3 2 (6.45%) NetSuite
Cloud Services
1 2 (6.45%) iPaaS
1 2 (6.45%) Microsoft Azure
1 2 (6.45%) SaaS
2 1 (3.23%) Force.com
2 1 (3.23%) GitHub
Communications & Networking
1 2 (6.45%) Firewall
1 2 (6.45%) FTP
1 2 (6.45%) SNMP
1 2 (6.45%) SSH
1 2 (6.45%) TCP/IP
1 2 (6.45%) Telnet
2 1 (3.23%) Skype
Database & Business Intelligence
1 3 (9.68%) MySQL
2 2 (6.45%) Relational Database
3 1 (3.23%) Apache Cassandra
3 1 (3.23%) Apache Hive
3 1 (3.23%) Big Data
3 1 (3.23%) Data Warehouse
3 1 (3.23%) Hadoop
3 1 (3.23%) NoSQL
3 1 (3.23%) Star Schema
Development Applications
1 3 (9.68%) Axure RP
1 3 (9.68%) Balsamiq Mockups
1 3 (9.68%) Git (software)
1 3 (9.68%) PHPUnit
2 2 (6.45%) Jenkins
3 1 (3.23%) Cucumber
3 1 (3.23%) JIRA
3 1 (3.23%) Vagrant
General
1 7 (22.58%) Finance
2 4 (12.90%) Telecoms
3 1 (3.23%) Banking
3 1 (3.23%) Investment Banking
3 1 (3.23%) Manufacturing
3 1 (3.23%) Retail
Job Titles
1 22 (70.97%) Developer
2 11 (35.48%) Front End Developer (Client-Side Developer)
3 9 (29.03%) Magento Developer
4 4 (12.90%) Designer
4 4 (12.90%) PHP Developer
5 3 (9.68%) Drupal Developer
5 3 (9.68%) Full Stack Developer
5 3 (9.68%) PHP Magento Developer
5 3 (9.68%) React Developer
5 3 (9.68%) User Experience Researcher
5 3 (9.68%) UX Designer
6 2 (6.45%) Consultant
6 2 (6.45%) HTML Developer
6 2 (6.45%) Software Developer
6 2 (6.45%) Symfony Developer
7 1 (3.23%) HTML CSS Developer
7 1 (3.23%) Integration Developer
7 1 (3.23%) Java Developer
7 1 (3.23%) JavaScript Developer
7 1 (3.23%) PHP Symfony Developer
Libraries, Frameworks & Software Standards
1 17 (54.84%) HTML
2 16 (51.61%) CSS
3 10 (32.26%) HTML5
4 9 (29.03%) CSS3
5 7 (22.58%) jQuery
6 5 (16.13%) REST
6 5 (16.13%) SOAP
7 4 (12.90%) AngularJS
7 4 (12.90%) React
7 4 (12.90%) RESTful
7 4 (12.90%) Web Services
8 3 (9.68%) .NET Framework
8 3 (9.68%) Entity Framework
8 3 (9.68%) Framer.js
8 3 (9.68%) LAMP
8 3 (9.68%) LEMP Stack
8 3 (9.68%) Node.js
8 3 (9.68%) React Native
8 3 (9.68%) Sass
8 3 (9.68%) Symfony
Miscellaneous
1 5 (16.13%) User Experience
2 4 (12.90%) Analytical Skills
3 3 (9.68%) Computer Science
3 3 (9.68%) Mobile App
4 2 (6.45%) Data Structures
5 1 (3.23%) Greenfield Project
5 1 (3.23%) Linux Command Line
Operating Systems
1 4 (12.90%) Linux
2 2 (6.45%) Unix
2 2 (6.45%) Windows
Processes & Methodologies
1 10 (32.26%) Front End Development
2 7 (22.58%) E-Commerce
3 6 (19.35%) TDD
4 5 (16.13%) Customer-Centricity
5 4 (12.90%) Agile Software Development
5 4 (12.90%) OO
5 4 (12.90%) OO PHP
5 4 (12.90%) Problem-Solving
6 3 (9.68%) ERP
6 3 (9.68%) Logistics
6 3 (9.68%) Mobile Application Development
6 3 (9.68%) MVC
6 3 (9.68%) OOP
6 3 (9.68%) Prototyping
6 3 (9.68%) Software Engineering
6 3 (9.68%) User Stories
6 3 (9.68%) Validation
6 3 (9.68%) Wireframes
7 2 (6.45%) Continuous Improvement
7 2 (6.45%) Use Case
Programming Languages
1 12 (38.71%) PHP
2 5 (16.13%) SQL
3 3 (9.68%) C#
3 3 (9.68%) Java
4 2 (6.45%) Perl
4 2 (6.45%) Python
4 2 (6.45%) Shell Script
4 2 (6.45%) VBScript
5 1 (3.23%) Apex Code
5 1 (3.23%) ES6
5 1 (3.23%) SOQL
5 1 (3.23%) VB
Qualifications
1 3 (9.68%) Computer Science Degree
1 3 (9.68%) Degree
2 2 (6.45%) ITIL Certification
Quality Assurance & Compliance
1 3 (9.68%) PCI DSS
1 3 (9.68%) QA
System Software
1 2 (6.45%) Docker
Systems Management
1 4 (12.90%) Netcool
2 2 (6.45%) Netcool/OMNIbus
2 2 (6.45%) Tivoli
3 1 (3.23%) Ansible
3 1 (3.23%) Kubernetes
Vendors
1 4 (12.90%) IBM
2 2 (6.45%) Jitterbit
2 2 (6.45%) Remedy
2 2 (6.45%) ServiceNow
3 1 (3.23%) Oracle
3 1 (3.23%) Salesforce.com