Period
to

The following table provides summary statistics for contract job vacancies advertised in 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 20 May 2022 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)
England > London
6 months to
20 May 2022
Same period 2021 Same period 2020
Rank 16 12 10
Rank change year-on-year -4 -2 -3
Contract jobs citing JavaScript 3,654 2,742 2,457
As % of all contract jobs advertised in London 9.39% 11.35% 12.25%
As % of the Programming Languages category 22.19% 23.87% 25.30%
Number of daily rates quoted 2,904 2,159 1,872
10th Percentile £419 £363 £363
25th Percentile £481 £438 £450
Median daily rate (50th Percentile) £588 £525 £536
Median % change year-on-year +11.90% -2.10% +7.25%
75th Percentile £688 £625 £630
90th Percentile £763 £700 £700
England median daily rate £550 £490 £488
% change year-on-year +12.24% +0.51% +2.63%
Number of hourly rates quoted 23 19 19
10th Percentile - £35.50 £17.40
25th Percentile £35.00 £41.79 £32.00
Median hourly rate £50.00 £55.00 £49.28
Median % change year-on-year -9.09% +11.62% +36.88%
75th Percentile £75.20 £68.00 £63.00
90th Percentile £78.77 £68.60 £66.33
England median hourly rate £55.25 £55.00 £50.00
% change year-on-year +0.45% +10.00% -

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 London with a requirement for coding skills.

All Programming Languages
London
Contract vacancies with a requirement for coding skills 16,464 11,489 9,712
As % of all contract IT jobs advertised in London 42.31% 47.56% 48.44%
Number of daily rates quoted 12,643 8,597 7,257
10th Percentile £413 £369 £370
25th Percentile £500 £450 £438
Median daily rate (50th Percentile) £600 £525 £525
Median % change year-on-year +14.29% - -
75th Percentile £704 £638 £625
90th Percentile £800 £713 £700
England median daily rate £550 £500 £500
% change year-on-year +10.00% - +2.56%
Number of hourly rates quoted 112 69 76
10th Percentile £31.03 £20.40 £18.48
25th Percentile £35.00 £30.68 £26.69
Median hourly rate £50.00 £45.00 £47.67
Median % change year-on-year +11.11% -5.59% +32.40%
75th Percentile £67.50 £63.75 £56.75
90th Percentile £77.45 £68.00 £64.31
England median hourly rate £50.00 £42.00 £43.25
% change year-on-year +19.05% -2.89% -1.05%

JavaScript
Job Vacancy Trend in London

Job postings citing JavaScript as a proportion of all IT jobs advertised in London.

Job vacancy trend for JavaScript in London

JavaScript
Contractor Daily Rate Trend in London

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

Daily rate trend for JavaScript in London

JavaScript
Daily Rate Histogram in London

Daily rate distribution for jobs citing JavaScript in London over the 6 months to 20 May 2022.

Daily rate histogram for JavaScript in London

JavaScript
Contractor Hourly Rate Trend in London

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

Hourly rate trend for JavaScript in London

JavaScript
Hourly Rate Histogram in London

Hourly rate distribution of jobs citing JavaScript in London over the 6 months to 20 May 2022.

Hourly rate histogram for JavaScript in London

JavaScript
Contract Job Locations in 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 London region over the 6 months to 20 May 2022. 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
Jobs
Central London -2 375 £550 +10.00% 247
West London -17 28 £625 +13.64% 65
South London -5 27 £625 +38.89% 19
East London -19 7 £575 +16.16% 73
North London -1 3 £475 +26.67% 2
JavaScript
England

For the 6 months to 20 May 2022, 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 London region with a requirement for JavaScript.

1 1,868 (51.12%) React
2 1,679 (45.95%) Agile
3 1,400 (38.31%) HTML
4 1,314 (35.96%) CSS
5 1,101 (30.13%) TypeScript
6 1,006 (27.53%) Finance
7 1,002 (27.42%) AWS
8 954 (26.11%) Node.js
9 937 (25.64%) Azure
10 914 (25.01%) Java
11 844 (23.10%) Full Stack Development
12 834 (22.82%) CI/CD
13 808 (22.11%) Python
14 770 (21.07%) DevOps
15 769 (21.05%) C#
16 761 (20.83%) AngularJS
17 750 (20.53%) SQL
18 735 (20.11%) Software Engineering
19 663 (18.14%) .NET
20 650 (17.79%) Front End Development
21 647 (17.71%) Git (software)
22 634 (17.35%) TDD
23 584 (15.98%) HTML5
24 558 (15.27%) Microservices
25 538 (14.72%) REST
26 504 (13.79%) Social Skills
27 503 (13.77%) Docker
28 498 (13.63%) Test Automation
29 439 (12.01%) Kubernetes
30 433 (11.85%) User Experience

JavaScript
Co-occurring IT Skills in 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
1 111 (3.04%) Confluence
2 84 (2.30%) CMS
3 65 (1.78%) Elasticsearch
4 59 (1.61%) Apache
5 55 (1.51%) SharePoint
6 29 (0.79%) IIS
7 28 (0.77%) OpenStack
7 28 (0.77%) Tomcat
8 27 (0.74%) Cloud Foundry
8 27 (0.74%) JBoss
8 27 (0.74%) nginx
9 23 (0.63%) Adobe Experience Manager
9 23 (0.63%) Drupal
10 22 (0.60%) BizTalk Server
11 21 (0.57%) Apache Airflow
11 21 (0.57%) WebSphere
12 19 (0.52%) WordPress
13 18 (0.49%) Apache Spark
14 15 (0.41%) Headless CMS
15 13 (0.36%) Ethereum
Applications
1 23 (0.63%) Sketch
2 20 (0.55%) Microsoft Excel
3 16 (0.44%) Adobe XD
4 12 (0.33%) Microsoft Office
5 9 (0.25%) Photoshop
6 8 (0.22%) Adobe Illustrator
7 6 (0.16%) InVision
7 6 (0.16%) Microsoft PowerPoint
8 5 (0.14%) Adobe Creative Suite
9 4 (0.11%) Microsoft Project
9 4 (0.11%) MS Visio
10 3 (0.082%) Maya
11 2 (0.055%) AutoCAD
11 2 (0.055%) Blender
11 2 (0.055%) Houdini
11 2 (0.055%) Spreadsheet
11 2 (0.055%) SPSS
12 1 (0.027%) 3ds Max
12 1 (0.027%) Adobe After Effects
12 1 (0.027%) FreeHand
Business Applications
1 40 (1.09%) Shopify
2 28 (0.77%) Dynamics CRM
3 13 (0.36%) Payment Gateway
4 10 (0.27%) Magento
5 5 (0.14%) Dynamics AX
5 5 (0.14%) Oracle EBS
5 5 (0.14%) Salesforce.com CRM
6 4 (0.11%) Oracle BPM
7 3 (0.082%) assyst
7 3 (0.082%) Dynamics GP
7 3 (0.082%) Oracle ERP
7 3 (0.082%) WebTrends
8 2 (0.055%) Oracle Applications
8 2 (0.055%) R3 Corda
8 2 (0.055%) Remedy ITSM
8 2 (0.055%) SAP Oil and Gas
8 2 (0.055%) Workday HCM
9 1 (0.027%) Quorum
9 1 (0.027%) SAP S/4HANA
9 1 (0.027%) Social Studio
Cloud Services
1 1,002 (27.42%) AWS
2 937 (25.64%) Azure
3 320 (8.76%) GCP
4 260 (7.12%) Serverless
5 254 (6.95%) GitHub
6 167 (4.57%) AWS Lambda
7 140 (3.83%) npm
8 103 (2.82%) SaaS
9 101 (2.76%) AWS CloudFormation
10 97 (2.65%) PaaS
11 85 (2.33%) Power Platform
12 81 (2.22%) IaaS
13 70 (1.92%) Amazon S3
14 67 (1.83%) Amazon EC2
15 55 (1.51%) Azure Functions
16 52 (1.42%) Microsoft 365
16 52 (1.42%) PowerApps
17 47 (1.29%) OpenShift
18 46 (1.26%) Amazon CloudWatch
19 43 (1.18%) Dynamics 365
Communications & Networking
1 82 (2.24%) Internet
2 66 (1.81%) HTTP
3 42 (1.15%) DNS
4 32 (0.88%) Firewall
5 31 (0.85%) RTMP
6 20 (0.55%) SSL
7 14 (0.38%) TCP/IP
8 13 (0.36%) Broadband
8 13 (0.36%) HTTPS
9 12 (0.33%) DMZ
10 10 (0.27%) VPN
11 8 (0.22%) tcpdump
12 6 (0.16%) AMQP
12 6 (0.16%) Intranet
13 5 (0.14%) DHCP
13 5 (0.14%) SSH
13 5 (0.14%) WAN
14 4 (0.11%) Bluetooth
15 3 (0.082%) POP3
15 3 (0.082%) SMTP
Database & Business Intelligence
1 333 (9.11%) SQL Server
2 219 (5.99%) PostgreSQL
3 207 (5.67%) Relational Database
4 172 (4.71%) MongoDB
5 170 (4.65%) NoSQL
6 160 (4.38%) MySQL
7 79 (2.16%) Amazon DynamoDB
8 70 (1.92%) Redis
9 59 (1.61%) Power BI
10 52 (1.42%) RDBMS
11 49 (1.34%) Big Data
12 29 (0.79%) Apache Cassandra
13 28 (0.77%) SQL Server Integration Services
14 27 (0.74%) Azure SQL Database
15 26 (0.71%) Amazon RDS
16 22 (0.60%) Oracle Database
17 18 (0.49%) Data Warehouse
17 18 (0.49%) GIS
18 17 (0.47%) Data Lake
18 17 (0.47%) SQL Server Reporting Services
Development Applications
1 647 (17.71%) Git (software)
2 382 (10.45%) Jenkins
3 278 (7.61%) JIRA
4 224 (6.13%) webpack
5 222 (6.08%) Cypress.io
6 144 (3.94%) Maven
7 121 (3.31%) GitLab
8 108 (2.96%) Cucumber
9 105 (2.87%) Grunt
10 104 (2.85%) Selenium
11 95 (2.60%) TeamCity
12 82 (2.24%) Gradle
13 72 (1.97%) Postman
14 70 (1.92%) JUnit
15 67 (1.83%) gulp
16 64 (1.75%) Bitbucket
17 63 (1.72%) Artifactory
17 63 (1.72%) Visual Studio
18 59 (1.61%) Protractor
19 53 (1.45%) Jasmine
General
1 1,006 (27.53%) Finance
2 504 (13.79%) Social Skills
3 427 (11.69%) Front Office
4 349 (9.55%) Banking
5 168 (4.60%) Analytical Skills
6 151 (4.13%) Investment Banking
7 146 (4.00%) Public Sector
8 88 (2.41%) Retail
9 77 (2.11%) Marketing
10 53 (1.45%) Presentation Skills
11 51 (1.40%) Legal
12 43 (1.18%) Games
13 37 (1.01%) Law
14 33 (0.90%) Manufacturing
15 31 (0.85%) Publishing
16 27 (0.74%) Telecoms
17 26 (0.71%) Financial Institution
18 21 (0.57%) Retail Banking
19 18 (0.49%) Back Office
20 17 (0.47%) Documentation Skills
Job Titles
1 2,527 (69.16%) Developer
2 591 (16.17%) React Developer
3 408 (11.17%) JavaScript Developer
4 401 (10.97%) Software Engineer
5 393 (10.76%) Full Stack Developer
6 378 (10.34%) Senior Developer
7 376 (10.29%) Front End Developer (Client-Side Developer)
8 278 (7.61%) Java Developer
9 264 (7.22%) Developer/Software Engineer
10 249 (6.81%) Python Developer
11 237 (6.49%) .NET Developer
12 195 (5.34%) AWS Engineer
13 161 (4.41%) AWS Developer
13 161 (4.41%) AWS Software Engineer
14 160 (4.38%) Angular Developer
15 147 (4.02%) UI Developer
16 127 (3.48%) Architect
17 115 (3.15%) Node.js Developer
18 113 (3.09%) DevOps Engineer
19 109 (2.98%) Java Engineer
Libraries, Frameworks & Software Standards
1 1,868 (51.12%) React
2 1,400 (38.31%) HTML
3 1,314 (35.96%) CSS
4 954 (26.11%) Node.js
5 761 (20.83%) AngularJS
6 663 (18.14%) .NET
7 584 (15.98%) HTML5
8 538 (14.72%) REST
9 350 (9.58%) Redux
10 337 (9.22%) CSS3
11 298 (8.16%) RESTful
12 293 (8.02%) Web Services
13 278 (7.61%) GraphQL
14 268 (7.33%) Spring
15 255 (6.98%) jQuery
16 229 (6.27%) Vue.js
17 228 (6.24%) .NET Core
18 225 (6.16%) ASP.NET
18 225 (6.16%) Sass
19 207 (5.67%) JSON
Miscellaneous
1 433 (11.85%) User Experience
2 251 (6.87%) Hedge funds
3 248 (6.79%) Derivative
4 246 (6.73%) Equities
5 236 (6.46%) Greenfield Project
6 203 (5.56%) Foreign Exchange (FX)
7 165 (4.52%) Fixed Income
8 121 (3.31%) Mobile App
9 81 (2.22%) Public Cloud
10 77 (2.11%) Cloud Native
11 71 (1.94%) Data Structures
12 69 (1.89%) Enterprise Software
13 59 (1.61%) Self-Motivation
14 55 (1.51%) Algorithms
14 55 (1.51%) Blockchain
15 53 (1.45%) Management Information System
16 43 (1.18%) Virtual Team
17 28 (0.77%) Hybrid Cloud
17 28 (0.77%) Linux Command Line
18 25 (0.68%) Renewable Energy
Operating Systems
1 257 (7.03%) Linux
2 151 (4.13%) Windows
3 96 (2.63%) Android
4 93 (2.55%) Unix
5 84 (2.30%) Apple iOS
6 25 (0.68%) Red Hat Enterprise Linux
7 13 (0.36%) Windows Server
8 9 (0.25%) Mac OS X
9 7 (0.19%) CentOS
9 7 (0.19%) Mac OS
10 6 (0.16%) Amazon Linux
10 6 (0.16%) Windows 10
11 5 (0.14%) Solaris
12 4 (0.11%) Oracle Linux
13 3 (0.082%) Fedora
13 3 (0.082%) SUSE
13 3 (0.082%) Ubuntu
14 2 (0.055%) Alpine Linux
15 1 (0.027%) Windows Server 2016
15 1 (0.027%) Windows Server 2019
Processes & Methodologies
1 1,679 (45.95%) Agile
2 844 (23.10%) Full Stack Development
3 834 (22.82%) CI/CD
4 770 (21.07%) DevOps
5 735 (20.11%) Software Engineering
6 650 (17.79%) Front End Development
7 634 (17.35%) TDD
8 558 (15.27%) Microservices
9 498 (13.63%) Test Automation
10 426 (11.66%) Scrum
11 354 (9.69%) Asset Management
12 329 (9.00%) Analytics
13 295 (8.07%) Continuous Integration
14 292 (7.99%) Investment Management
15 281 (7.69%) Problem-Solving
16 277 (7.58%) Web Development
17 261 (7.14%) SDLC
18 241 (6.60%) OO
19 225 (6.16%) Fintech
20 222 (6.08%) BDD
Programming Languages
1 1,101 (30.13%) TypeScript
2 914 (25.01%) Java
3 808 (22.11%) Python
4 769 (21.05%) C#
5 750 (20.53%) SQL
6 189 (5.17%) ES6
7 149 (4.08%) PHP
8 141 (3.86%) PowerShell
9 137 (3.75%) Bash
10 122 (3.34%) Go
11 112 (3.07%) Ruby
12 76 (2.08%) C++
13 74 (2.03%) T-SQL
14 68 (1.86%) C
15 60 (1.64%) Apex Code
16 59 (1.61%) PL/SQL
17 52 (1.42%) Scala
17 52 (1.42%) Shell Script
18 40 (1.09%) Kotlin
19 39 (1.07%) Groovy
Qualifications
1 165 (4.52%) Security Cleared
2 160 (4.38%) Degree
3 133 (3.64%) SC Cleared
4 74 (2.03%) Computer Science Degree
5 31 (0.85%) BPSS Clearance
6 21 (0.57%) DV Cleared
7 12 (0.33%) ISTQB
8 11 (0.30%) AWS Certification
9 7 (0.19%) Master's Degree
9 7 (0.19%) TOGAF Certification
10 6 (0.16%) ISTQB Foundation Certification
10 6 (0.16%) ITIL Foundation Certificate
10 6 (0.16%) PMP
11 5 (0.14%) CISSP
12 4 (0.11%) Cisco Certification
12 4 (0.11%) Microsoft Certification
12 4 (0.11%) Numerate Degree
13 3 (0.082%) DBS Check
13 3 (0.082%) RHCE
13 3 (0.082%) RHCSA
Quality Assurance & Compliance
1 269 (7.36%) QA
2 147 (4.02%) Accessibility
3 24 (0.66%) WCAG
4 17 (0.47%) GDPR
5 15 (0.41%) PCI DSS
6 8 (0.22%) SLA
7 6 (0.16%) Data Quality
7 6 (0.16%) GRC
8 3 (0.082%) PMO
9 2 (0.055%) WAI
10 1 (0.027%) Disclosure Scotland
System Software
1 503 (13.77%) Docker
2 34 (0.93%) Active Directory
3 23 (0.63%) VMware Infrastructure
4 9 (0.25%) Ceph
5 7 (0.19%) VMware ESXi
6 5 (0.14%) Virtual Machines
7 3 (0.082%) Citrix Hypervisor
7 3 (0.082%) vSphere
8 2 (0.055%) Varnish
8 2 (0.055%) vCloud
8 2 (0.055%) VMware NSX
9 1 (0.027%) Firmware
9 1 (0.027%) Hyper-V
9 1 (0.027%) OpenDJ
9 1 (0.027%) Oracle RAC
9 1 (0.027%) zsh
Systems Management
1 439 (12.01%) Kubernetes
2 341 (9.33%) Terraform
3 130 (3.56%) Ansible
4 63 (1.72%) Puppet
5 51 (1.40%) Grafana
6 39 (1.07%) Prometheus
7 37 (1.01%) Kibana
7 37 (1.01%) Opscode Chef
8 16 (0.44%) Single Sign-On
9 14 (0.38%) Consul
10 13 (0.36%) Istio
11 12 (0.33%) logstash
12 10 (0.27%) Netcool
13 9 (0.25%) Salt
14 7 (0.19%) Argo
15 6 (0.16%) Packer
15 6 (0.16%) vRealize
16 5 (0.14%) HP Fortify
17 4 (0.11%) CloudForms
18 3 (0.082%) Opsgenie
Vendors
1 310 (8.48%) Microsoft
2 208 (5.69%) Oracle
3 133 (3.64%) Google
4 101 (2.76%) Salesforce.com
5 69 (1.89%) ServiceNow
6 65 (1.78%) Adobe
7 39 (1.07%) SAP
7 39 (1.07%) Splunk
8 37 (1.01%) Red Hat
9 35 (0.96%) Atlassian
10 33 (0.90%) Databricks
11 31 (0.85%) MuleSoft
12 29 (0.79%) VMware
13 25 (0.68%) IBM
14 20 (0.55%) Sitecore
15 15 (0.41%) AppDynamics
15 15 (0.41%) Cisco
16 13 (0.36%) Dynatrace
17 12 (0.33%) PayPal
17 12 (0.33%) WorldPay