Period
to 19 June 2019

The following table provides summary statistics for contract job vacancies advertised in the City of London 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 June 2019 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)
Central London > City of London
6 months to
19 Jun 2019
Same period 2018 Same period 2017
Rank 9 8 8
Rank change year-on-year -1 0 0
Contract jobs citing JavaScript 768 921 810
As % of all contract IT jobs advertised in the City of London 11.92% 13.35% 13.05%
As % of the Programming Languages category 23.85% 25.40% 26.10%
Number of daily rates quoted 624 756 685
City of London median daily rate £500 £500 £475
Median daily rate % change year-on-year - +5.26% +11.63%
10th Percentile £406 £363 £325
90th Percentile £625 £638 £638
Central London median daily rate £500 £500 £475
% change year-on-year - +5.26% +11.76%
Number of hourly rates quoted 7 1 0
City of London median hourly rate £35.00 £55.00 -
Median hourly rate % change year-on-year -36.36% - -
Central London median hourly rate £35.00 £55.00 -
% change year-on-year -36.36% - -

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 the City of London with a requirement for coding skills.

All Programming Languages
City of London
Contract vacancies with a requirement for coding skills 3,220 3,626 3,103
As % of all contract IT jobs advertised in the City of London 49.98% 52.57% 50.01%
Number of daily rates quoted 2,617 3,052 2,517
City of London median daily rate £525 £525 £500
Median daily rate % change year-on-year - +5.00% +5.26%
10th Percentile £406 £363 £328
90th Percentile £675 £700 £659
Central London median daily rate £525 £525 £500
% change year-on-year - +5.00% +8.11%
Number of hourly rates quoted 22 21 7
City of London median hourly rate £28.75 £21.50 £28.35
Median hourly rate % change year-on-year +33.72% -24.15% +9.02%
10th Percentile £21.00 £12.75 £16.65
90th Percentile £56.50 £48.25 £39.70
Central London median hourly rate £35.00 £21.50 £28.35
% change year-on-year +62.79% -24.15% +9.02%

JavaScript
Job Vacancy Trend in the City of London

Job postings citing JavaScript as a percentage of all IT jobs advertised in the City of London.

Job vacancy trend for JavaScript in the City of London

JavaScript
Contractor Daily Rate Trend in the City of London

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

Contractor daily rate trend for JavaScript in the City of London

JavaScript
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing JavaScript in the City of London over the 6 months to 19 June 2019.

Contractor daily rate histogram for JavaScript in the City of London

JavaScript
Contractor Hourly Rate Trend in the City of London

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

Contractor hourly rate trend for JavaScript in the City of London

JavaScript
Contractor Hourly Rate Histogram in the City of London

The hourly rate distribution of IT jobs citing JavaScript in the City of London over the 6 months to 19 June 2019.

Contractor hourly rate histogram for JavaScript in the City of London

JavaScript
Contract Job Locations in the City of London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing JavaScript within the City of London region over the 6 months to 19 June 2019. 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
London Bridge -5 69 £500 +5.26%
Moorgate -18 2 - -
JavaScript
Central London

For the 6 months to 19 June 2019, 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 City of London region with a requirement for JavaScript.

1 395 (51.43%) HTML
2 380 (49.48%) Agile Software Development
3 352 (45.83%) CSS
4 253 (32.94%) React
5 203 (26.43%) Java
6 184 (23.96%) Node.js
7 183 (23.83%) AngularJS
8 177 (23.05%) HTML5
9 168 (21.88%) TDD
10 140 (18.23%) Git (software)
11 135 (17.58%) Finance
12 132 (17.19%) SQL
13 126 (16.41%) C#
13 126 (16.41%) Redux
14 118 (15.36%) .NET
15 117 (15.23%) Front End Development
16 106 (13.80%) MVC
16 106 (13.80%) Scrum
17 105 (13.67%) DevOps
18 100 (13.02%) Software Engineering
19 99 (12.89%) Microservices
20 93 (12.11%) Docker
20 93 (12.11%) ES6
20 93 (12.11%) Amazon AWS
20 93 (12.11%) Python
21 92 (11.98%) TypeScript
22 88 (11.46%) BDD
23 86 (11.20%) jQuery
24 83 (10.81%) Microsoft Azure
25 82 (10.68%) REST

JavaScript
Co-occurring IT Skills in the City of London 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 39 (5.08%) Confluence
2 36 (4.69%) Elasticsearch
3 24 (3.13%) CMS
4 19 (2.47%) SharePoint
5 11 (1.43%) WordPress
6 10 (1.30%) Apache
7 9 (1.17%) Drupal
8 7 (0.91%) Adobe Experience Manager
9 6 (0.78%) Apache Spark
9 6 (0.78%) Gunicorn
9 6 (0.78%) JBoss
9 6 (0.78%) nginx
10 5 (0.65%) Sitecore CMS
10 5 (0.65%) WebSphere
11 4 (0.52%) Cloud Foundry
11 4 (0.52%) EPiServer
11 4 (0.52%) Magnolia
12 3 (0.39%) GeoServer
12 3 (0.39%) Umbraco
12 3 (0.39%) WebLogic
Applications
1 6 (0.78%) Photoshop
2 5 (0.65%) Adobe Illustrator
2 5 (0.65%) Sketch
3 2 (0.26%) Microsoft Excel
4 1 (0.13%) Adobe Creative Suite
4 1 (0.13%) Microsoft Office
4 1 (0.13%) Zeplin
Business Applications
1 12 (1.56%) Dynamics CRM
2 6 (0.78%) Remedy ITSM
3 3 (0.39%) SAP Oil and Gas
4 2 (0.26%) Sage 200
4 2 (0.26%) SAP ERP
4 2 (0.26%) SAP S/4HANA
5 1 (0.13%) Eloqua
5 1 (0.13%) Magento
5 1 (0.13%) Oracle BPM
5 1 (0.13%) Salesforce.com CRM
5 1 (0.13%) SAP Hybris
5 1 (0.13%) SDL Web 8
5 1 (0.13%) SessionCam
5 1 (0.13%) Shopify
5 1 (0.13%) Workday HCM
Cloud Services
1 93 (12.11%) Amazon AWS
2 83 (10.81%) Microsoft Azure
3 33 (4.30%) GitHub
4 28 (3.65%) Serverless
5 26 (3.39%) Google Analytics
6 16 (2.08%) AWS Lambda
7 15 (1.95%) npm
8 13 (1.69%) Amazon SQS
9 12 (1.56%) Datadog
9 12 (1.56%) Google Cloud Platform
10 11 (1.43%) Dynamics 365
11 10 (1.30%) Heroku
12 9 (1.17%) Adobe Analytics
12 9 (1.17%) Amazon EC2
13 8 (1.04%) PaaS
14 7 (0.91%) Amazon S3
15 6 (0.78%) Office 365
15 6 (0.78%) SaaS
16 5 (0.65%) AWS CloudFormation
16 5 (0.65%) Yammer
Communications & Networking
1 24 (3.13%) HTTP
2 15 (1.95%) SSL
3 14 (1.82%) TCP/IP
4 13 (1.69%) DNS
4 13 (1.69%) FTP
5 3 (0.39%) Firewall
6 2 (0.26%) HTTPS
6 2 (0.26%) Internet
6 2 (0.26%) Intranet
6 2 (0.26%) VPN
6 2 (0.26%) Wireshark
7 1 (0.13%) 3GPP
7 1 (0.13%) Intrusion Detection
7 1 (0.13%) Network Security
7 1 (0.13%) Skype
7 1 (0.13%) SMTP
7 1 (0.13%) Sourcefire
Database & Business Intelligence
1 68 (8.85%) SQL Server
2 51 (6.64%) MongoDB
2 51 (6.64%) MySQL
3 48 (6.25%) PostgreSQL
4 34 (4.43%) NoSQL
5 29 (3.78%) Big Data
6 26 (3.39%) Redis
7 25 (3.26%) Relational Database
8 11 (1.43%) Apache Cassandra
8 11 (1.43%) SQL Server Reporting Services
9 10 (1.30%) Blockchain
10 8 (1.04%) Amazon RDS
11 7 (0.91%) Hadoop
12 6 (0.78%) SQL Server Integration Services
13 5 (0.65%) Amazon Athena
13 5 (0.65%) Amazon DynamoDB
13 5 (0.65%) Cosmos DB
14 4 (0.52%) Data Lake
14 4 (0.52%) InfluxDB
14 4 (0.52%) Power BI
Development Applications
1 140 (18.23%) Git (software)
2 67 (8.72%) JIRA
3 64 (8.33%) Jenkins
4 58 (7.55%) webpack
5 48 (6.25%) gulp
6 41 (5.34%) Cucumber
7 39 (5.08%) Selenium
8 29 (3.78%) Mocha
9 28 (3.65%) Visual Studio Team System
10 27 (3.52%) Jasmine
10 27 (3.52%) Team Foundation Server
11 26 (3.39%) GitLab
11 26 (3.39%) Grunt
11 26 (3.39%) Maven
12 22 (2.86%) TeamCity
13 21 (2.73%) Gatling
13 21 (2.73%) Subversion
14 20 (2.60%) Visual Studio
14 20 (2.60%) WebDriver
15 17 (2.21%) Babel
General
1 135 (17.58%) Finance
2 65 (8.46%) Banking
3 31 (4.04%) Retail
4 28 (3.65%) Front Office
5 19 (2.47%) Marketing
6 18 (2.34%) Investment Banking
7 9 (1.17%) Advertising
7 9 (1.17%) Law
8 8 (1.04%) Games
8 8 (1.04%) Publishing
9 5 (0.65%) Back Office
10 3 (0.39%) Financial Institution
11 2 (0.26%) Billing
11 2 (0.26%) Manufacturing
11 2 (0.26%) Pharmaceutical
12 1 (0.13%) Automotive
12 1 (0.13%) Electronics
12 1 (0.13%) Legal
12 1 (0.13%) Telecoms
12 1 (0.13%) Wholesale Banking
Job Titles
1 554 (72.14%) Developer
2 173 (22.53%) JavaScript Developer
3 139 (18.10%) React Developer
4 78 (10.16%) Front End Developer (Client-Side Developer)
5 67 (8.72%) Full Stack Developer
6 65 (8.46%) Senior Developer
7 61 (7.94%) Java Developer
8 43 (5.60%) .NET Developer
9 37 (4.82%) Angular Developer
10 28 (3.65%) UI Developer
11 26 (3.39%) JavaScript Engineer
12 25 (3.26%) Architect
12 25 (3.26%) Node.js Developer
13 23 (2.99%) C# Developer
13 23 (2.99%) Web Developer
14 22 (2.86%) Analyst
14 22 (2.86%) Python Developer
15 19 (2.47%) HTML Developer
16 18 (2.34%) Software Engineer
17 17 (2.21%) Software Developer
Libraries, Frameworks & Software Standards
1 395 (51.43%) HTML
2 352 (45.83%) CSS
3 253 (32.94%) React
4 184 (23.96%) Node.js
5 183 (23.83%) AngularJS
6 177 (23.05%) HTML5
7 126 (16.41%) Redux
8 118 (15.36%) .NET
9 86 (11.20%) jQuery
10 82 (10.68%) REST
11 81 (10.55%) Sass
12 70 (9.11%) CSS3
13 67 (8.72%) Twitter Bootstrap
14 66 (8.59%) RESTful
15 60 (7.81%) Spring
16 52 (6.77%) Web Services
17 44 (5.73%) JSON
18 43 (5.60%) ASP.NET Web API
18 43 (5.60%) GraphQL
19 40 (5.21%) XML
Miscellaneous
1 62 (8.07%) User Experience
2 59 (7.68%) Greenfield Project
3 38 (4.95%) Mobile App
4 32 (4.17%) Analytical Skills
5 17 (2.21%) Data Structures
6 13 (1.69%) Self-Motivation
7 9 (1.17%) Enterprise Software
7 9 (1.17%) Virtual Team
8 8 (1.04%) Algorithms
8 8 (1.04%) Data Protection Act
9 6 (0.78%) Social Media
9 6 (0.78%) W3C
10 5 (0.65%) Foreign Exchange (FX)
11 4 (0.52%) Equities
11 4 (0.52%) Equity Derivative
11 4 (0.52%) Fixed Income
11 4 (0.52%) Hedge funds
11 4 (0.52%) Video\Live Streaming
12 3 (0.39%) Derivative
12 3 (0.39%) Wiki
Operating Systems
1 81 (10.55%) Linux
2 30 (3.91%) Windows
3 22 (2.86%) Android
3 22 (2.86%) Apple iOS
4 19 (2.47%) Unix
5 4 (0.52%) Mac OS X
5 4 (0.52%) Windows Server
6 3 (0.39%) Ubuntu
6 3 (0.39%) VMS
6 3 (0.39%) Windows Server 2012
7 2 (0.26%) Red Hat Enterprise Linux
7 2 (0.26%) Windows Server 2008
8 1 (0.13%) Amazon Linux
8 1 (0.13%) Debian
8 1 (0.13%) openSUSE
Processes & Methodologies
1 380 (49.48%) Agile Software Development
2 168 (21.88%) TDD
3 117 (15.23%) Front End Development
4 106 (13.80%) MVC
4 106 (13.80%) Scrum
5 105 (13.67%) DevOps
6 100 (13.02%) Software Engineering
7 99 (12.89%) Microservices
8 88 (11.46%) BDD
9 73 (9.51%) Web Development
10 72 (9.38%) Test Automation
11 60 (7.81%) Analytics
11 60 (7.81%) Continuous Integration
12 56 (7.29%) SDLC
13 52 (6.77%) Problem-Solving
14 46 (5.99%) E-Commerce
15 43 (5.60%) Fintech
16 40 (5.21%) Unit Testing
17 37 (4.82%) Computer Science
17 37 (4.82%) OO
Programming Languages
1 203 (26.43%) Java
2 132 (17.19%) SQL
3 126 (16.41%) C#
4 93 (12.11%) ES6
4 93 (12.11%) Python
5 92 (11.98%) TypeScript
6 46 (5.99%) PHP
7 34 (4.43%) Java 8
8 33 (4.30%) Ruby
9 22 (2.86%) Bash Shell
9 22 (2.86%) Scala
10 17 (2.21%) ES7
10 17 (2.21%) PowerShell
11 14 (1.82%) Perl
12 12 (1.56%) Go
12 12 (1.56%) Shell Script
12 12 (1.56%) T-SQL
13 11 (1.43%) Apex Code
14 10 (1.30%) C++
14 10 (1.30%) JSX
Qualifications
1 38 (4.95%) Degree
2 18 (2.34%) Computer Science Degree
3 13 (1.69%) Security Cleared
4 11 (1.43%) SC Cleared
5 4 (0.52%) BPSS Clearance
5 4 (0.52%) Numerate Degree
5 4 (0.52%) TOGAF Certification
6 3 (0.39%) ISTQB
6 3 (0.39%) Master's Degree
7 1 (0.13%) SAFe Agilist
Quality Assurance & Compliance
1 36 (4.69%) QA
2 6 (0.78%) Data Quality
2 6 (0.78%) PCI DSS
3 3 (0.39%) Solvency II
4 2 (0.26%) WCAG
5 1 (0.13%) COBIT
5 1 (0.13%) ISO/IEC 27001
5 1 (0.13%) NIST
System Software
1 93 (12.11%) Docker
2 7 (0.91%) Active Directory
3 3 (0.39%) VMware Infrastructure
4 1 (0.13%) Apache Flume
4 1 (0.13%) Apache ZooKeeper
4 1 (0.13%) etcd
4 1 (0.13%) HDFS
4 1 (0.13%) Virtual Machines
4 1 (0.13%) zsh
Systems Management
1 34 (4.43%) Kubernetes
2 22 (2.86%) Ansible
3 21 (2.73%) Terraform
4 13 (1.69%) Docker Swarm
5 8 (1.04%) Grafana
5 8 (1.04%) Puppet
6 6 (0.78%) Marathon
6 6 (0.78%) Mesos
7 5 (0.65%) Consul
7 5 (0.65%) Graphite
7 5 (0.65%) Kibana
7 5 (0.65%) ZABBIX
8 4 (0.52%) logstash
8 4 (0.52%) Opscode Chef
9 3 (0.39%) ITRS Geneos
9 3 (0.39%) Nagios
9 3 (0.39%) vRealize
9 3 (0.39%) vRealize Orchestrator
10 2 (0.26%) Single Sign-On
10 2 (0.26%) systemd
Vendors
1 58 (7.55%) Microsoft
2 46 (5.99%) Google
3 25 (3.26%) Splunk
4 21 (2.73%) Adobe
5 19 (2.47%) Oracle
6 14 (1.82%) Salesforce.com
7 11 (1.43%) ServiceNow
8 10 (1.30%) Atlassian
9 8 (1.04%) Perforce
9 8 (1.04%) SAP
9 8 (1.04%) Sonatype
10 6 (0.78%) BMC
10 6 (0.78%) New Relic
10 6 (0.78%) Remedy
10 6 (0.78%) Sitecore
11 5 (0.65%) Tableau
12 4 (0.52%) Cypress Semiconductor
12 4 (0.52%) MuleSoft
12 4 (0.52%) Tealium
12 4 (0.52%) Xamarin