Period
to 9 April 2020

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 9 April 2020 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
9 Apr 2020
Same period 2019 Same period 2018
Rank 11 10 8
Rank change year-on-year -1 -2 0
Contract jobs citing JavaScript 427 832 951
As % of all contract jobs advertised in the City of London 10.37% 12.21% 13.51%
As % of the Programming Languages category 21.01% 23.69% 25.17%
Number of daily rates quoted 311 684 816
Median daily rate £525 £500 £500
Median daily rate % change year-on-year +5.00% - +10.99%
10th Percentile £363 £395 £363
90th Percentile £675 £650 £638
Central London median daily rate £525 £500 £500
% change year-on-year +5.00% - +8.11%
Number of hourly rates quoted 8 8 1
Median hourly rate £48.50 £35.00 £27.09
Median hourly rate % change year-on-year +38.57% +29.20% -
10th Percentile £35.00 £28.30 £25.66
90th Percentile £57.50 £83.28 £28.52
Central London median hourly rate £48.50 £35.00 £27.09
% change year-on-year +38.57% +29.20% -

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 2,032 3,512 3,778
As % of all contract IT jobs advertised in the City of London 49.37% 51.55% 53.68%
Number of daily rates quoted 1,572 2,842 3,228
Median daily rate £525 £525 £525
10th Percentile £381 £400 £363
90th Percentile £688 £675 £713
Central London median daily rate £525 £525 £513
% change year-on-year - +2.44% +7.89%
Number of hourly rates quoted 19 15 19
Median hourly rate £38.50 £22.50 £21.50
Median hourly rate % change year-on-year +71.11% +4.65% -24.15%
10th Percentile £24.50 £18.28 £15.95
90th Percentile £58.25 £56.50 £52.10
Median hourly rate £35.00 £28.75 £21.50
% change year-on-year +21.74% +33.72% -24.15%

JavaScript
Job Vacancy Trend in the City of London

Job postings citing JavaScript as a proportion 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

3-month moving average daily rate quoted in jobs citing JavaScript in the City of London.

Daily rate trend for JavaScript in the City of London

JavaScript
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing JavaScript in the City of London over the 6 months to 9 April 2020.

Daily rate histogram for JavaScript in the City of London

JavaScript
Contractor Hourly Rate Trend in the City of London

3-month moving average hourly rates quoted in jobs citing JavaScript in the City of London.

Hourly rate trend for JavaScript in the City of London

JavaScript
Hourly Rate Histogram in the City of London

Hourly rate distribution of jobs citing JavaScript in the City of London over the 6 months to 9 April 2020.

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 9 April 2020. 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
Moorgate +20 7 £450 -5.26% 1
London Bridge +1 2 £600 +20.00%
JavaScript
Central London

For the 6 months to 9 April 2020, 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.

1 192 (44.96%) HTML
2 184 (43.09%) CSS
3 174 (40.75%) Agile Software Development
4 123 (28.81%) React
5 101 (23.65%) Java
6 93 (21.78%) AngularJS
7 91 (21.31%) Node.js
8 84 (19.67%) TDD
9 83 (19.44%) Finance
10 75 (17.56%) Front End Development
11 72 (16.86%) Python
12 69 (16.16%) HTML5
13 66 (15.46%) C#
14 65 (15.22%) .NET
14 65 (15.22%) Git (software)
15 62 (14.52%) SQL
16 60 (14.05%) AWS
17 57 (13.35%) Continuous Integration
18 55 (12.88%) TypeScript
19 54 (12.65%) DevOps
19 54 (12.65%) Redux
20 52 (12.18%) User Experience
21 51 (11.94%) Azure
22 44 (10.30%) Jenkins
23 43 (10.07%) Test Automation
24 42 (9.84%) Scrum
25 40 (9.37%) Software Engineering
26 37 (8.67%) Ruby
26 37 (8.67%) Banking
26 37 (8.67%) Greenfield Project

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 24 (5.62%) CMS
2 10 (2.34%) Elasticsearch
3 8 (1.87%) Confluence
4 7 (1.64%) WebLogic
5 6 (1.41%) Adobe Experience Manager
5 6 (1.41%) Drupal
5 6 (1.41%) WebSphere
6 5 (1.17%) Apache
6 5 (1.17%) IIS
7 4 (0.94%) SharePoint
8 3 (0.70%) nginx
9 2 (0.47%) Apache Spark
9 2 (0.47%) Cloud Foundry
9 2 (0.47%) Oracle Workflow
9 2 (0.47%) SAP Portal
9 2 (0.47%) SharePoint 2010
9 2 (0.47%) Tomcat
9 2 (0.47%) WordPress
10 1 (0.23%) Appian
10 1 (0.23%) Tornado
Applications
1 6 (1.41%) Photoshop
2 4 (0.94%) InVision
2 4 (0.94%) Sketch
3 3 (0.70%) InDesign
4 2 (0.47%) Acrobat
4 2 (0.47%) Adobe XD
4 2 (0.47%) Lectora
5 1 (0.23%) Adobe Illustrator
5 1 (0.23%) Microsoft Excel
5 1 (0.23%) Zeplin
Business Applications
1 7 (1.64%) Dynamics CRM
2 4 (0.94%) Magento
3 1 (0.23%) SAP Hybris
Cloud Services
1 60 (14.05%) AWS
2 51 (11.94%) Azure
3 32 (7.49%) GitHub
4 29 (6.79%) GCP
5 17 (3.98%) Serverless
6 10 (2.34%) AWS Lambda
7 7 (1.64%) Route 53
8 6 (1.41%) Amazon SQS
8 6 (1.41%) Cloud Computing
8 6 (1.41%) npm
9 5 (1.17%) Amazon EC2
9 5 (1.17%) Amazon S3
9 5 (1.17%) Dynamics 365
9 5 (1.17%) Google Analytics
10 4 (0.94%) Amazon EKS
10 4 (0.94%) Amazon ELB
10 4 (0.94%) PaaS
11 3 (0.70%) Adobe Analytics
11 3 (0.70%) Apigee
11 3 (0.70%) Datadog
Communications & Networking
1 11 (2.58%) HTTP
2 6 (1.41%) Firewall
3 4 (0.94%) DNS
3 4 (0.94%) SSL
4 3 (0.70%) TCP/IP
5 1 (0.23%) AMQP
5 1 (0.23%) DHCP
5 1 (0.23%) DOCSIS
5 1 (0.23%) FTP
5 1 (0.23%) Intranet
5 1 (0.23%) MQTT
5 1 (0.23%) SNMP
Database & Business Intelligence
1 27 (6.32%) SQL Server
2 24 (5.62%) MySQL
3 21 (4.92%) NoSQL
4 18 (4.22%) PostgreSQL
5 14 (3.28%) MongoDB
6 10 (2.34%) Data Warehouse
6 10 (2.34%) Relational Database
7 9 (2.11%) Redis
8 6 (1.41%) SQL Server Reporting Services
9 5 (1.17%) Big Data
9 5 (1.17%) Neo4j
9 5 (1.17%) SQL Server Integration Services
10 4 (0.94%) OLAP
10 4 (0.94%) RDBMS
11 3 (0.70%) Amazon Athena
11 3 (0.70%) Amazon DynamoDB
11 3 (0.70%) QlikView
12 2 (0.47%) BigQuery
12 2 (0.47%) Cosmos DB
12 2 (0.47%) Qlik Sense
Development Applications
1 65 (15.22%) Git (software)
2 44 (10.30%) Jenkins
3 28 (6.56%) JIRA
4 14 (3.28%) CircleCI
5 10 (2.34%) git-flow
5 10 (2.34%) JUnit
5 10 (2.34%) Team Foundation Server
6 9 (2.11%) Gradle
6 9 (2.11%) JMeter
6 9 (2.11%) Selenium
6 9 (2.11%) Visual Studio
6 9 (2.11%) webpack
7 8 (1.87%) Cucumber
7 8 (1.87%) GitLab
7 8 (1.87%) Maven
8 7 (1.64%) Ant
8 7 (1.64%) gulp
8 7 (1.64%) Mockito
8 7 (1.64%) Travis CI
9 6 (1.41%) Babel
General
1 83 (19.44%) Finance
2 37 (8.67%) Banking
3 19 (4.45%) Marketing
4 12 (2.81%) Front Office
5 11 (2.58%) Investment Banking
6 9 (2.11%) Public Sector
7 7 (1.64%) Publishing
8 6 (1.41%) Advertising
9 5 (1.17%) Games
9 5 (1.17%) Law
9 5 (1.17%) Retail
9 5 (1.17%) Telecoms
10 3 (0.70%) Electronics
10 3 (0.70%) Fire and Rescue
10 3 (0.70%) Manufacturing
11 2 (0.47%) Back Office
11 2 (0.47%) Housing Association
11 2 (0.47%) International Banking
11 2 (0.47%) Legal
11 2 (0.47%) Retail Banking
Job Titles
1 299 (70.02%) Developer
2 65 (15.22%) React Developer
3 61 (14.29%) JavaScript Developer
4 55 (12.88%) Front End Developer (Client-Side Developer)
5 51 (11.94%) Full Stack Developer
6 39 (9.13%) Senior Developer
7 24 (5.62%) Java Developer
8 20 (4.68%) Python Developer
9 19 (4.45%) C# Developer
10 17 (3.98%) Node.js Developer
11 16 (3.75%) .NET Developer
11 16 (3.75%) Architect
11 16 (3.75%) HTML Developer
12 14 (3.28%) DevOps Engineer
13 13 (3.04%) Angular Developer
13 13 (3.04%) Senior JavaScript Developer
14 12 (2.81%) Consultant
14 12 (2.81%) Designer
14 12 (2.81%) Web Developer
15 11 (2.58%) PHP Developer
Libraries, Frameworks & Software Standards
1 192 (44.96%) HTML
2 184 (43.09%) CSS
3 123 (28.81%) React
4 93 (21.78%) AngularJS
5 91 (21.31%) Node.js
6 69 (16.16%) HTML5
7 65 (15.22%) .NET
8 54 (12.65%) Redux
9 35 (8.20%) jQuery
10 34 (7.96%) RESTful
11 32 (7.49%) CSS3
12 28 (6.56%) Web Services
13 27 (6.32%) REST
14 26 (6.09%) Sass
15 23 (5.39%) Vue.js
16 20 (4.68%) ASP.NET
17 19 (4.45%) JSON
17 19 (4.45%) XML
18 18 (4.22%) Spring
19 16 (3.75%) SOAP
Miscellaneous
1 52 (12.18%) User Experience
2 37 (8.67%) Greenfield Project
3 24 (5.62%) Mobile App
4 20 (4.68%) Analytical Skills
4 20 (4.68%) Enterprise Software
5 13 (3.04%) Data Structures
6 12 (2.81%) Self-Motivation
7 10 (2.34%) Foreign Exchange (FX)
8 9 (2.11%) Mobile Payment
9 7 (1.64%) Hedge funds
9 7 (1.64%) W3C
10 5 (1.17%) Public Cloud
10 5 (1.17%) Virtual Team
11 4 (0.94%) Algorithms
11 4 (0.94%) iPad
11 4 (0.94%) Video on Demand
12 3 (0.70%) BYOD
12 3 (0.70%) Fixed Income
12 3 (0.70%) Social Media
12 3 (0.70%) Video\Live Streaming
Operating Systems
1 27 (6.32%) Linux
2 9 (2.11%) Windows
3 8 (1.87%) Android
4 5 (1.17%) Apple iOS
4 5 (1.17%) Unix
5 2 (0.47%) Ubuntu
6 1 (0.23%) AIX
6 1 (0.23%) Mac OS X
6 1 (0.23%) Red Hat Enterprise Linux
Processes & Methodologies
1 174 (40.75%) Agile Software Development
2 84 (19.67%) TDD
3 75 (17.56%) Front End Development
4 57 (13.35%) Continuous Integration
5 54 (12.65%) DevOps
6 43 (10.07%) Test Automation
7 42 (9.84%) Scrum
8 40 (9.37%) Software Engineering
9 36 (8.43%) BDD
10 34 (7.96%) Microservices
10 34 (7.96%) Web Development
11 30 (7.03%) MVC
12 29 (6.79%) Pair Programming
13 28 (6.56%) SDLC
14 27 (6.32%) Computer Science
15 26 (6.09%) Continuous Delivery
16 21 (4.92%) Continuous Improvement
16 21 (4.92%) Fintech
16 21 (4.92%) Open Source
17 20 (4.68%) OO
Programming Languages
1 101 (23.65%) Java
2 72 (16.86%) Python
3 66 (15.46%) C#
4 62 (14.52%) SQL
5 55 (12.88%) TypeScript
6 37 (8.67%) Ruby
7 36 (8.43%) PHP
8 21 (4.92%) Go
8 21 (4.92%) Scala
9 18 (4.22%) ES6
10 15 (3.51%) C++
11 14 (3.28%) Kotlin
12 13 (3.04%) Groovy
13 11 (2.58%) Java 8
13 11 (2.58%) PowerShell
14 7 (1.64%) Bash Shell
15 6 (1.41%) T-SQL
16 5 (1.17%) C
17 4 (0.94%) Perl
17 4 (0.94%) VBA
Qualifications
1 33 (7.73%) Degree
2 16 (3.75%) Computer Science Degree
3 11 (2.58%) Security Cleared
4 7 (1.64%) SC Cleared
5 4 (0.94%) Master's Degree
6 3 (0.70%) BC Cleared
6 3 (0.70%) ISTQB
7 2 (0.47%) BPSS Clearance
7 2 (0.47%) ISEB
7 2 (0.47%) Microsoft Certification
8 1 (0.23%) CTC Cleared
8 1 (0.23%) DV Cleared
Quality Assurance & Compliance
1 22 (5.15%) QA
2 5 (1.17%) WCAG
3 1 (0.23%) MiFID
3 1 (0.23%) PCI DSS
3 1 (0.23%) PMO
3 1 (0.23%) SLA
3 1 (0.23%) Solvency II
System Software
1 29 (6.79%) Docker
2 3 (0.70%) Active Directory
2 3 (0.70%) OpenAM
2 3 (0.70%) OpenDJ
3 1 (0.23%) Varnish
Systems Management
1 29 (6.79%) Kubernetes
2 24 (5.62%) Terraform
3 7 (1.64%) Ansible
4 5 (1.17%) Single Sign-On
5 4 (0.94%) Kibana
6 2 (0.47%) Istio
6 2 (0.47%) MIIS
6 2 (0.47%) Opscode Chef
6 2 (0.47%) Prometheus
6 2 (0.47%) Puppet
7 1 (0.23%) Control-M
7 1 (0.23%) Docker Swarm
7 1 (0.23%) Grafana
Vendors
1 26 (6.09%) Google
2 21 (4.92%) Microsoft
3 15 (3.51%) Adobe
4 10 (2.34%) Oracle
5 7 (1.64%) SAP
6 5 (1.17%) Tealium
7 4 (0.94%) Atlassian
7 4 (0.94%) Facebook
7 4 (0.94%) Okta
7 4 (0.94%) Salesforce.com
7 4 (0.94%) ServiceNow
8 3 (0.70%) Cognos
8 3 (0.70%) ForgeRock
9 2 (0.47%) GoCardless
9 2 (0.47%) Lets Encrypt
9 2 (0.47%) New Relic
9 2 (0.47%) Red Hat
9 2 (0.47%) Splunk
9 2 (0.47%) Xamarin
9 2 (0.47%) Zuora