Period
to 6 July 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 6 July 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
6 Jul 2020
Same period 2019 Same period 2018
Rank 15 8 8
Rank change year-on-year -7 0 0
Contract jobs citing JavaScript 244 813 964
As % of all contract jobs advertised in the City of London 8.87% 12.17% 13.45%
As % of the Programming Languages category 18.07% 24.35% 25.32%
Number of daily rates quoted 169 673 792
Median daily rate £500 £500 £500
10th Percentile £361 £406 £363
90th Percentile £650 £636 £638
Central London median daily rate £500 £500 £500
Number of hourly rates quoted 5 7 1
Median hourly rate £35.00 £35.00 £55.00
Median hourly rate % change year-on-year - -36.36% -
10th Percentile £33.65 £32.50 £47.50
90th Percentile £57.50 £92.20 £62.50
Central London median hourly rate £35.00 £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 1,350 3,339 3,808
As % of all contract IT jobs advertised in the City of London 49.09% 49.96% 53.12%
Number of daily rates quoted 1,009 2,718 3,191
Median daily rate £525 £525 £525
10th Percentile £375 £406 £363
90th Percentile £688 £675 £694
Central London median daily rate £525 £525 £525
Number of hourly rates quoted 14 22 21
Median hourly rate £35.00 £28.75 £21.50
Median hourly rate % change year-on-year +21.74% +33.72% -
10th Percentile £24.48 £21.00 £12.75
90th Percentile £57.20 £56.50 £38.47
Median hourly rate £35.00 £35.00 £21.50
% change year-on-year - +62.79% -

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 6 July 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 6 July 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 6 July 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 +21 3 £450 -
JavaScript
Central London

For the 6 months to 6 July 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 97 (39.75%) Agile Software Development
2 95 (38.93%) HTML
3 94 (38.52%) CSS
4 73 (29.92%) React
5 71 (29.10%) Java
6 63 (25.82%) Node.js
7 51 (20.90%) SQL
8 50 (20.49%) Finance
9 49 (20.08%) Python
10 47 (19.26%) .NET
10 47 (19.26%) TDD
11 44 (18.03%) AngularJS
12 42 (17.21%) C#
13 41 (16.80%) Front End Development
14 37 (15.16%) Git (software)
15 35 (14.34%) User Experience
16 34 (13.93%) Jenkins
16 34 (13.93%) Continuous Integration
17 33 (13.52%) DevOps
18 31 (12.70%) Azure
19 30 (12.30%) HTML5
19 30 (12.30%) Redux
20 29 (11.89%) AWS
20 29 (11.89%) SQL Server
21 27 (11.07%) TypeScript
22 26 (10.66%) Kubernetes
23 25 (10.25%) Banking
23 25 (10.25%) Software Engineering
24 24 (9.84%) Scrum
24 24 (9.84%) Microservices

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 12 (4.92%) Elasticsearch
2 9 (3.69%) CMS
3 7 (2.87%) Apache Spark
4 6 (2.46%) Confluence
4 6 (2.46%) SharePoint
5 4 (1.64%) Tornado
6 3 (1.23%) Apache
7 2 (0.82%) Cloud Foundry
7 2 (0.82%) Drupal
7 2 (0.82%) IIS
7 2 (0.82%) nginx
8 1 (0.41%) Apache Solr
8 1 (0.41%) EPiServer
8 1 (0.41%) JBoss
8 1 (0.41%) SharePoint 2010
8 1 (0.41%) Sitecore CMS
8 1 (0.41%) Tomcat
8 1 (0.41%) WebLogic
8 1 (0.41%) WebSphere
8 1 (0.41%) WordPress
Applications
1 9 (3.69%) Photoshop
2 6 (2.46%) Acrobat
3 4 (1.64%) Microsoft Excel
4 2 (0.82%) Microsoft PowerPoint
5 1 (0.41%) InVision
5 1 (0.41%) Sketch
5 1 (0.41%) Zeplin
Business Applications
1 5 (2.05%) Dynamics CRM
2 3 (1.23%) Magento
3 2 (0.82%) Salesforce.com CRM
4 1 (0.41%) SAP Hybris
Cloud Services
1 31 (12.70%) Azure
2 29 (11.89%) AWS
3 18 (7.38%) GCP
4 14 (5.74%) GitHub
5 9 (3.69%) Serverless
6 7 (2.87%) npm
6 7 (2.87%) Power Platform
7 4 (1.64%) Amazon EKS
7 4 (1.64%) AWS Lambda
7 4 (1.64%) Cloud Computing
7 4 (1.64%) Dynamics 365
8 3 (1.23%) PaaS
8 3 (1.23%) Route 53
9 2 (0.82%) Amazon SQS
9 2 (0.82%) Datadog
9 2 (0.82%) OpenShift
10 1 (0.41%) Amazon Cognito
10 1 (0.41%) AWS CloudFormation
10 1 (0.41%) AWS Step Functions
10 1 (0.41%) Firebase
Communications & Networking
1 6 (2.46%) HTTP
2 4 (1.64%) DNS
2 4 (1.64%) Firewall
2 4 (1.64%) SSL
3 3 (1.23%) TCP/IP
4 1 (0.41%) FTP
4 1 (0.41%) Intranet
4 1 (0.41%) Kerberos
Database & Business Intelligence
1 29 (11.89%) SQL Server
2 18 (7.38%) NoSQL
3 17 (6.97%) MySQL
4 15 (6.15%) PostgreSQL
5 9 (3.69%) Big Data
5 9 (3.69%) Relational Database
5 9 (3.69%) SQL Server Integration Services
5 9 (3.69%) SQL Server Reporting Services
6 8 (3.28%) Data Warehouse
7 7 (2.87%) Power BI
8 5 (2.05%) MongoDB
8 5 (2.05%) Redis
9 4 (1.64%) Apache Hive
9 4 (1.64%) OLAP
9 4 (1.64%) SQL Server Analysis Services
10 3 (1.23%) RDBMS
11 2 (0.82%) Hadoop
11 2 (0.82%) Neo4j
11 2 (0.82%) QlikView
11 2 (0.82%) SQLite
Development Applications
1 37 (15.16%) Git (software)
2 34 (13.93%) Jenkins
3 13 (5.33%) JIRA
3 13 (5.33%) Team Foundation Server
4 9 (3.69%) CircleCI
5 8 (3.28%) Cucumber
5 8 (3.28%) GitLab
5 8 (3.28%) Selenium
6 7 (2.87%) Cypress.io
7 6 (2.46%) git-flow
7 6 (2.46%) Jasmine
7 6 (2.46%) Mocha
7 6 (2.46%) Visual Studio
8 5 (2.05%) Gradle
8 5 (2.05%) gulp
8 5 (2.05%) JUnit
9 4 (1.64%) JMeter
9 4 (1.64%) ProC
9 4 (1.64%) Protractor
9 4 (1.64%) Sonatype Nexus
General
1 50 (20.49%) Finance
2 25 (10.25%) Banking
3 11 (4.51%) Marketing
4 10 (4.10%) Front Office
5 7 (2.87%) Investment Banking
6 6 (2.46%) Public Sector
7 5 (2.05%) Law
8 4 (1.64%) Advertising
8 4 (1.64%) Publishing
9 3 (1.23%) International Banking
10 2 (0.82%) Games
10 2 (0.82%) Local Government
10 2 (0.82%) Retail Banking
11 1 (0.41%) Back Office
11 1 (0.41%) Financial Institution
11 1 (0.41%) Legal
11 1 (0.41%) Retail
Job Titles
1 163 (66.80%) Developer
2 34 (13.93%) React Developer
3 32 (13.11%) JavaScript Developer
4 29 (11.89%) Front End Developer (Client-Side Developer)
5 26 (10.66%) Full Stack Developer
6 20 (8.20%) Senior Developer
7 13 (5.33%) Java Developer
7 13 (5.33%) Python Developer
8 12 (4.92%) .NET Developer
9 11 (4.51%) DevOps Engineer
9 11 (4.51%) SQL Developer
10 10 (4.10%) Node.js Developer
11 9 (3.69%) HTML Developer
11 9 (3.69%) Senior React Developer
12 8 (3.28%) C# Developer
12 8 (3.28%) Designer
13 7 (2.87%) Architect
13 7 (2.87%) ASP.NET Developer
13 7 (2.87%) Platform Engineer
13 7 (2.87%) Senior JavaScript Developer
Libraries, Frameworks & Software Standards
1 95 (38.93%) HTML
2 94 (38.52%) CSS
3 73 (29.92%) React
4 63 (25.82%) Node.js
5 47 (19.26%) .NET
6 44 (18.03%) AngularJS
7 30 (12.30%) HTML5
7 30 (12.30%) Redux
8 23 (9.43%) jQuery
9 19 (7.79%) ASP.NET
10 16 (6.56%) CSS3
10 16 (6.56%) RESTful
11 13 (5.33%) REST
11 13 (5.33%) Vue.js
12 12 (4.92%) Web Services
13 11 (4.51%) .NET Core
13 11 (4.51%) Jest
14 10 (4.10%) Flask
14 10 (4.10%) Sass
15 9 (3.69%) Spring
Miscellaneous
1 35 (14.34%) User Experience
2 12 (4.92%) Analytical Skills
2 12 (4.92%) Greenfield Project
3 11 (4.51%) Enterprise Software
4 10 (4.10%) Mobile App
5 7 (2.87%) Data Structures
6 6 (2.46%) Foreign Exchange (FX)
6 6 (2.46%) Self-Motivation
7 4 (1.64%) Mobile Payment
8 3 (1.23%) Algorithms
8 3 (1.23%) Public Cloud
8 3 (1.23%) Video on Demand
9 2 (0.82%) Credit Risk
9 2 (0.82%) Fixed Income
9 2 (0.82%) iPad
9 2 (0.82%) Linux Command Line
9 2 (0.82%) N-Tier
9 2 (0.82%) Tandem
9 2 (0.82%) W3C
10 1 (0.41%) Hedge funds
Operating Systems
1 14 (5.74%) Linux
2 5 (2.05%) Android
2 5 (2.05%) Windows
3 3 (1.23%) Unix
4 2 (0.82%) Apple iOS
4 2 (0.82%) Mac OS X
5 1 (0.41%) AIX
Processes & Methodologies
1 97 (39.75%) Agile Software Development
2 47 (19.26%) TDD
3 41 (16.80%) Front End Development
4 34 (13.93%) Continuous Integration
5 33 (13.52%) DevOps
6 25 (10.25%) Software Engineering
7 24 (9.84%) Microservices
7 24 (9.84%) Scrum
8 22 (9.02%) Web Development
9 21 (8.61%) BDD
10 18 (7.38%) Continuous Improvement
10 18 (7.38%) SDLC
11 17 (6.97%) Computer Science
11 17 (6.97%) Test Automation
12 16 (6.56%) Unit Testing
13 15 (6.15%) Continuous Delivery
14 14 (5.74%) E-Commerce
15 13 (5.33%) Open Source
15 13 (5.33%) Problem-Solving
16 12 (4.92%) MVC
Programming Languages
1 71 (29.10%) Java
2 51 (20.90%) SQL
3 49 (20.08%) Python
4 42 (17.21%) C#
5 27 (11.07%) TypeScript
6 18 (7.38%) Ruby
7 17 (6.97%) PHP
8 15 (6.15%) Scala
9 13 (5.33%) Go
9 13 (5.33%) PowerShell
10 11 (4.51%) Groovy
10 11 (4.51%) T-SQL
11 9 (3.69%) Bash Shell
11 9 (3.69%) ES6
11 9 (3.69%) Kotlin
12 5 (2.05%) C
12 5 (2.05%) C++
12 5 (2.05%) Java 8
12 5 (2.05%) VBA
13 3 (1.23%) ES7
Qualifications
1 21 (8.61%) Degree
2 10 (4.10%) Security Cleared
3 6 (2.46%) Computer Science Degree
3 6 (2.46%) SC Cleared
4 3 (1.23%) BPSS Clearance
4 3 (1.23%) ISTQB
5 2 (0.82%) ISEB
5 2 (0.82%) Master's Degree
5 2 (0.82%) Microsoft Certification
6 1 (0.41%) BC Cleared
6 1 (0.41%) DBS Check
Quality Assurance & Compliance
1 12 (4.92%) QA
2 4 (1.64%) WCAG
3 3 (1.23%) Solvency II
4 1 (0.41%) Disclosure Scotland
4 1 (0.41%) MiFID
4 1 (0.41%) PCI DSS
System Software
1 24 (9.84%) Docker
2 4 (1.64%) Active Directory
3 3 (1.23%) OpenAM
3 3 (1.23%) OpenDJ
Systems Management
1 26 (10.66%) Kubernetes
2 16 (6.56%) Terraform
3 9 (3.69%) Ansible
4 4 (1.64%) Grafana
5 3 (1.23%) Kibana
5 3 (1.23%) Prometheus
6 2 (0.82%) Opscode Chef
6 2 (0.82%) Puppet
7 1 (0.41%) Docker Swarm
7 1 (0.41%) MIIS
Vendors
1 19 (7.79%) Microsoft
2 11 (4.51%) Google
3 9 (3.69%) Adobe
4 7 (2.87%) Salesforce.com
5 5 (2.05%) Oracle
6 4 (1.64%) Cloudera
6 4 (1.64%) Hortonworks
6 4 (1.64%) Tableau
7 3 (1.23%) Cognos
7 3 (1.23%) ForgeRock
7 3 (1.23%) Salesforce Marketing Cloud
8 2 (0.82%) Facebook
8 2 (0.82%) Lets Encrypt
8 2 (0.82%) SAP
8 2 (0.82%) ServiceNow
8 2 (0.82%) Sybase
9 1 (0.41%) Atlassian
9 1 (0.41%) GoCardless
9 1 (0.41%) Netezza
9 1 (0.41%) RapidMiner