Period
to 23 February 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 23 February 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
23 Feb 2020
Same period 2019 Same period 2018
Rank 11 7 8
Rank change year-on-year -4 +1 0
Contract jobs citing JavaScript 485 860 979
As % of all contract IT jobs advertised in the City of London 10.46% 12.72% 13.76%
As % of the Programming Languages category 21.61% 24.10% 25.79%
Number of daily rates quoted 366 718 839
City of London median daily rate £525 £500 £500
Median daily rate % change year-on-year +5.00% - +6.67%
10th Percentile £363 £375 £363
90th Percentile £650 £668 £638
Central London median daily rate £525 £500 £500
% change year-on-year +5.00% - +8.11%
Number of hourly rates quoted 4 1 1
City of London median hourly rate £48.50 £19.00 £27.09
Median hourly rate % change year-on-year +155.26% -29.86% -
10th Percentile £44.75 £18.50 £25.66
90th Percentile £52.78 £19.50 £28.52
Central London median hourly rate £48.50 £19.00 £27.09
% change year-on-year +155.26% -29.86% -

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 2,244 3,569 3,796
As % of all contract IT jobs advertised in the City of London 48.40% 52.80% 53.36%
Number of daily rates quoted 1,772 2,950 3,232
City of London median daily rate £525 £525 £525
10th Percentile £381 £400 £363
90th Percentile £688 £675 £700
Central London median daily rate £525 £525 £513
% change year-on-year - +2.44% +7.89%
Number of hourly rates quoted 16 5 15
City of London median hourly rate £36.75 £37.09 £21.50
Median hourly rate % change year-on-year -0.92% +72.51% -21.82%
10th Percentile £22.83 £18.28 £17.75
90th Percentile £57.13 £40.15 £59.80
Central London median hourly rate £35.00 £28.87 £21.50
% change year-on-year +21.24% +34.27% -21.82%

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 23 February 2020.

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
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 23 February 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 +17 15 £450 -5.26% 1
London Bridge -7 2 £600 +20.00%
JavaScript
Central London

For the 6 months to 23 February 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.

1 222 (45.77%) HTML
2 210 (43.30%) CSS
3 201 (41.44%) Agile Software Development
4 137 (28.25%) React
5 123 (25.36%) AngularJS
6 116 (23.92%) Java
7 102 (21.03%) TDD
8 93 (19.18%) Node.js
9 92 (18.97%) Front End Development
10 90 (18.56%) Finance
10 90 (18.56%) C#
11 84 (17.32%) Python
12 77 (15.88%) .NET
13 75 (15.46%) HTML5
14 73 (15.05%) TypeScript
15 70 (14.43%) AWS
16 69 (14.23%) Azure
16 69 (14.23%) DevOps
17 66 (13.61%) Git (software)
18 64 (13.20%) Redux
19 61 (12.58%) SQL
20 58 (11.96%) Continuous Integration
21 57 (11.75%) Microservices
22 56 (11.55%) Test Automation
23 48 (9.90%) Greenfield Project
23 48 (9.90%) Scrum
24 45 (9.28%) MVC
24 45 (9.28%) User Experience
25 44 (9.07%) Docker
25 44 (9.07%) SQL Server

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 35 (7.22%) CMS
2 12 (2.47%) Confluence
2 12 (2.47%) SharePoint
3 9 (1.86%) IIS
4 7 (1.44%) Apache
4 7 (1.44%) Drupal
4 7 (1.44%) Elasticsearch
4 7 (1.44%) WebLogic
5 6 (1.24%) Adobe Experience Manager
5 6 (1.24%) Sitecore CMS
5 6 (1.24%) Umbraco
5 6 (1.24%) WebSphere
6 5 (1.03%) SharePoint 2013
6 5 (1.03%) WordPress
7 4 (0.82%) JBoss
8 3 (0.62%) Cloud Foundry
8 3 (0.62%) Oracle Workflow
9 2 (0.41%) Appian
9 2 (0.41%) Ethereum
9 2 (0.41%) Hyperledger
Applications
1 4 (0.82%) Photoshop
2 3 (0.62%) InDesign
2 3 (0.62%) InVision
2 3 (0.62%) Sketch
3 2 (0.41%) Adobe XD
3 2 (0.41%) Lectora
4 1 (0.21%) Adobe Illustrator
4 1 (0.21%) Microsoft Excel
4 1 (0.21%) Microsoft PowerPoint
4 1 (0.21%) MS Visio
Business Applications
1 14 (2.89%) Dynamics CRM
2 4 (0.82%) Magento
3 2 (0.41%) Distributed Ledger
3 2 (0.41%) R3 Corda
4 1 (0.21%) SAP Hybris
4 1 (0.21%) SDL Web 8
Cloud Services
1 70 (14.43%) AWS
2 69 (14.23%) Azure
3 37 (7.63%) GCP
4 31 (6.39%) GitHub
5 16 (3.30%) Serverless
6 14 (2.89%) Cloud Computing
7 13 (2.68%) npm
7 13 (2.68%) PaaS
8 10 (2.06%) Amazon SQS
9 9 (1.86%) AWS Lambda
9 9 (1.86%) Route 53
9 9 (1.86%) SaaS
10 8 (1.65%) Dynamics 365
11 7 (1.44%) Amazon EC2
12 6 (1.24%) Amazon ELB
13 5 (1.03%) Amazon S3
13 5 (1.03%) Google Analytics
14 4 (0.82%) AWS CloudFormation
14 4 (0.82%) OpenShift
15 3 (0.62%) Virtual Private Cloud
Communications & Networking
1 13 (2.68%) HTTP
2 11 (2.27%) Firewall
3 5 (1.03%) SSL
4 4 (0.82%) DNS
4 4 (0.82%) TCP/IP
5 3 (0.62%) FTP
6 2 (0.41%) Internet
6 2 (0.41%) Peer-to-Peer Networking
6 2 (0.41%) VPN
7 1 (0.21%) AMQP
7 1 (0.21%) DHCP
7 1 (0.21%) DOCSIS
7 1 (0.21%) Intranet
7 1 (0.21%) MQTT
7 1 (0.21%) SMTP
7 1 (0.21%) SNMP
7 1 (0.21%) SSH
Database & Business Intelligence
1 44 (9.07%) SQL Server
2 23 (4.74%) MySQL
3 21 (4.33%) MongoDB
4 19 (3.92%) PostgreSQL
5 18 (3.71%) NoSQL
6 10 (2.06%) Relational Database
7 8 (1.65%) Data Warehouse
7 8 (1.65%) Redis
8 7 (1.44%) SQL Server Integration Services
9 5 (1.03%) Apache Cassandra
9 5 (1.03%) Neo4j
9 5 (1.03%) RDBMS
9 5 (1.03%) SQL Server Reporting Services
10 4 (0.82%) Amazon DynamoDB
11 3 (0.62%) Amazon Athena
11 3 (0.62%) Blockchain
11 3 (0.62%) HBase
11 3 (0.62%) QlikView
12 2 (0.41%) SAP HANA
12 2 (0.41%) SQLite
Development Applications
1 66 (13.61%) Git (software)
2 41 (8.45%) Jenkins
3 29 (5.98%) JIRA
4 21 (4.33%) gulp
5 18 (3.71%) TeamCity
5 18 (3.71%) Visual Studio
6 16 (3.30%) Cucumber
7 15 (3.09%) webpack
8 14 (2.89%) Grunt
9 13 (2.68%) Octopus Deploy
10 12 (2.47%) Selenium
10 12 (2.47%) Team Foundation Server
11 10 (2.06%) Maven
11 10 (2.06%) Mocha
12 9 (1.86%) Babel
12 9 (1.86%) Gradle
12 9 (1.86%) JMeter
13 7 (1.44%) CircleCI
13 7 (1.44%) git-flow
13 7 (1.44%) GitLab
General
1 90 (18.56%) Finance
2 41 (8.45%) Banking
3 24 (4.95%) Marketing
4 15 (3.09%) Front Office
5 14 (2.89%) Investment Banking
6 10 (2.06%) Public Sector
7 8 (1.65%) Advertising
7 8 (1.65%) Telecoms
8 6 (1.24%) Games
9 5 (1.03%) Retail
10 4 (0.82%) Electronics
10 4 (0.82%) Law
10 4 (0.82%) Manufacturing
10 4 (0.82%) Publishing
11 3 (0.62%) Automotive
11 3 (0.62%) Fire and Rescue
12 2 (0.41%) Back Office
12 2 (0.41%) Housing Association
12 2 (0.41%) Retail Banking
13 1 (0.21%) Pharmaceutical
Job Titles
1 356 (73.40%) Developer
2 71 (14.64%) React Developer
3 63 (12.99%) Front End Developer (Client-Side Developer)
4 58 (11.96%) JavaScript Developer
5 52 (10.72%) Full Stack Developer
6 47 (9.69%) Senior Developer
7 37 (7.63%) Java Developer
8 28 (5.77%) C# Developer
9 24 (4.95%) Angular Developer
10 23 (4.74%) Python Developer
11 21 (4.33%) .NET Developer
12 16 (3.30%) Node.js Developer
13 15 (3.09%) DevOps Engineer
13 15 (3.09%) HTML Developer
14 14 (2.89%) Architect
15 13 (2.68%) PHP Developer
15 13 (2.68%) Web Developer
16 12 (2.47%) Software Engineer
16 12 (2.47%) SQL Developer
17 11 (2.27%) Consultant
Libraries, Frameworks & Software Standards
1 222 (45.77%) HTML
2 210 (43.30%) CSS
3 137 (28.25%) React
4 123 (25.36%) AngularJS
5 93 (19.18%) Node.js
6 77 (15.88%) .NET
7 75 (15.46%) HTML5
8 64 (13.20%) Redux
9 38 (7.84%) RESTful
10 36 (7.42%) jQuery
10 36 (7.42%) REST
11 35 (7.22%) CSS3
12 34 (7.01%) Web Services
13 30 (6.19%) JSON
13 30 (6.19%) Spring
14 29 (5.98%) Sass
15 27 (5.57%) XML
16 26 (5.36%) ASP.NET
17 23 (4.74%) Twitter Bootstrap
18 22 (4.54%) Vue.js
Miscellaneous
1 48 (9.90%) Greenfield Project
2 45 (9.28%) User Experience
3 25 (5.15%) Analytical Skills
4 21 (4.33%) Enterprise Software
5 18 (3.71%) Mobile App
6 13 (2.68%) Foreign Exchange (FX)
6 13 (2.68%) Self-Motivation
7 11 (2.27%) Data Structures
8 9 (1.86%) Hedge funds
9 8 (1.65%) W3C
10 6 (1.24%) Mobile Payment
10 6 (1.24%) Virtual Team
11 5 (1.03%) Algorithms
12 4 (0.82%) Equities
12 4 (0.82%) Social Media
13 3 (0.62%) BYOD
13 3 (0.62%) iPad
13 3 (0.62%) Public Cloud
13 3 (0.62%) Video on Demand
13 3 (0.62%) Video\Live Streaming
Operating Systems
1 31 (6.39%) Linux
2 6 (1.24%) Android
2 6 (1.24%) Apple iOS
3 5 (1.03%) Windows
4 4 (0.82%) Unix
5 3 (0.62%) Red Hat Enterprise Linux
6 2 (0.41%) Ubuntu
7 1 (0.21%) Mac OS X
7 1 (0.21%) Solaris
Processes & Methodologies
1 201 (41.44%) Agile Software Development
2 102 (21.03%) TDD
3 92 (18.97%) Front End Development
4 69 (14.23%) DevOps
5 58 (11.96%) Continuous Integration
6 57 (11.75%) Microservices
7 56 (11.55%) Test Automation
8 48 (9.90%) Scrum
9 45 (9.28%) MVC
10 43 (8.87%) BDD
11 41 (8.45%) Software Engineering
12 36 (7.42%) Web Development
13 33 (6.80%) Pair Programming
14 29 (5.98%) Computer Science
14 29 (5.98%) Multithreading
15 28 (5.77%) Continuous Delivery
16 26 (5.36%) Unit Testing
17 25 (5.15%) SDLC
18 20 (4.12%) Fintech
18 20 (4.12%) Open Source
Programming Languages
1 116 (23.92%) Java
2 90 (18.56%) C#
3 84 (17.32%) Python
4 73 (15.05%) TypeScript
5 61 (12.58%) SQL
6 41 (8.45%) Ruby
7 39 (8.04%) PHP
8 29 (5.98%) Go
9 26 (5.36%) Scala
10 23 (4.74%) ES6
11 16 (3.30%) C++
12 14 (2.89%) Kotlin
13 13 (2.68%) Groovy
13 13 (2.68%) Java 8
14 9 (1.86%) PowerShell
15 5 (1.03%) Bash Shell
15 5 (1.03%) Elm
16 4 (0.82%) Clojure
16 4 (0.82%) ClojureScript
16 4 (0.82%) ES7
Qualifications
1 35 (7.22%) Degree
2 19 (3.92%) Computer Science Degree
3 18 (3.71%) Security Cleared
4 15 (3.09%) SC Cleared
5 5 (1.03%) Master's Degree
6 4 (0.82%) ISTQB
7 3 (0.62%) BC Cleared
8 2 (0.41%) CISSP
8 2 (0.41%) ISEB
8 2 (0.41%) Numerate Degree
9 1 (0.21%) BPSS Clearance
9 1 (0.21%) CTC Cleared
9 1 (0.21%) DV Cleared
Quality Assurance & Compliance
1 22 (4.54%) QA
2 10 (2.06%) WCAG
3 2 (0.41%) NIST
3 2 (0.41%) NIST 800
4 1 (0.21%) Data Quality
4 1 (0.21%) MiFID
4 1 (0.21%) PMO
4 1 (0.21%) SLA
System Software
1 44 (9.07%) Docker
2 5 (1.03%) Virtual Machines
3 2 (0.41%) Active Directory
3 2 (0.41%) OpenAM
3 2 (0.41%) OpenDJ
3 2 (0.41%) Varnish
Systems Management
1 32 (6.60%) Terraform
2 26 (5.36%) Kubernetes
3 11 (2.27%) Ansible
4 5 (1.03%) Single Sign-On
5 4 (0.82%) Puppet
6 3 (0.62%) Docker Swarm
7 2 (0.41%) Istio
7 2 (0.41%) MIIS
7 2 (0.41%) Opscode Chef
7 2 (0.41%) Prometheus
8 1 (0.21%) Consul
8 1 (0.21%) Control-M
8 1 (0.21%) Kibana
Vendors
1 31 (6.39%) Google
1 31 (6.39%) Microsoft
2 12 (2.47%) Adobe
2 12 (2.47%) Oracle
3 10 (2.06%) Sitecore
4 7 (1.44%) SAP
5 6 (1.24%) Facebook
5 6 (1.24%) Red Hat
6 5 (1.03%) Tealium
7 4 (0.82%) Atlassian
7 4 (0.82%) Okta
7 4 (0.82%) Salesforce.com
7 4 (0.82%) ServiceNow
8 3 (0.62%) New Relic
8 3 (0.62%) Perforce
8 3 (0.62%) WSO2
9 2 (0.41%) ForgeRock
9 2 (0.41%) Lets Encrypt
9 2 (0.41%) Xamarin
9 2 (0.41%) Zuora