JavaScript Contract Job Trends in the City of Westminster

JavaScript (including ECMAScript)
Central London > City of Westminster

The table below provides summary statistics and contractor rates for jobs advertised in the City of Westminster requiring JavaScript skills. It covers vacancies from the 6 months leading up to 20 September 2025, with comparisons to the same periods in the previous two years.

 6 months to
20 Sep 2025		 Same period 2024 Same period 2023
Rank 11 11 12
Rank change year-on-year 0 +1 +1
Contract jobs citing JavaScript 3 2 5
As % of all contract jobs advertised in the City of Westminster 6.67% 4.17% 8.62%
As % of the Programming Languages category 16.67% 14.29% 20.00%
Number of daily rates quoted 2 2 5
10th Percentile £255 £451 £360
25th Percentile £291 £453 £375
Median daily rate (50th Percentile) £353 £463 £515
Median % change year-on-year -23.78% -10.19% -14.17%
75th Percentile £414 £478 £563
90th Percentile £451 £484 £743
Central London median daily rate £525 £588 £550
% change year-on-year -10.64% +6.82% -1.79%

All Programming Languages
City of Westminster

JavaScript falls under the Programming Languages category. For comparison with the information above, the following table provides summary statistics for all contract job vacancies requiring coding skills in the City of Westminster.

Contract vacancies with a requirement for coding skills 18 14 25
As % of all contract IT jobs advertised in the City of Westminster 40.00% 29.17% 43.10%
Number of daily rates quoted 16 14 25
10th Percentile £384 £454 £360
25th Percentile £434 £536 £508
Median daily rate (50th Percentile) £475 £575 £600
Median % change year-on-year -17.39% -4.17% -
75th Percentile £576 £694 £850
90th Percentile £631 £788 £918
Central London median daily rate £575 £575 £605
% change year-on-year - -4.96% +2.98%

JavaScript
Job Vacancy Trend in the City of Westminster

Job postings citing JavaScript as a proportion of all IT jobs advertised in the City of Westminster.

Job vacancy trend for JavaScript in the City of Westminster

JavaScript
Daily Rate Trend in the City of Westminster

Contractor daily rate distribution trend for jobs in the City of Westminster citing JavaScript.

Contractor daily rate distribution trend for jobs in the City of Westminster citing JavaScript

JavaScript
Daily Rate Histogram in the City of Westminster

Daily rate distribution for jobs citing JavaScript in the City of Westminster over the 6 months to 20 September 2025.

Daily rate histogram for JavaScript in the City of Westminster

JavaScript
Hourly Rate Trend in the City of Westminster

Contractor hourly rate distribution trend for jobs in the City of Westminster citing JavaScript.

Contractor hourly rate distribution trend for jobs in the City of Westminster citing JavaScript

JavaScript
Contract Job Locations in the City of Westminster

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 Westminster region over the 6 months to 20 September 2025. 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
Paddington +2 2 £353 -21.67%
Westminster -4 1 - - 3
JavaScript
Central London

JavaScript
Co-occurring Skills and Capabilities in the City of Westminster by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 1 (33.33%) Confluence
1 1 (33.33%) Mattermost
Cloud Services
1 2 (66.67%) GCP
2 1 (33.33%) AWS
2 1 (33.33%) Azure
2 1 (33.33%) BrowserStack
2 1 (33.33%) Datadog
2 1 (33.33%) GitHub
2 1 (33.33%) Stackdriver
Communications & Networking
1 1 (33.33%) Firewall
1 1 (33.33%) STUN
Database & Business Intelligence
1 2 (66.67%) MongoDB
1 2 (66.67%) PostgreSQL
1 2 (66.67%) Redis
2 1 (33.33%) MySQL
2 1 (33.33%) NoSQL
Development Applications
1 2 (66.67%) Cypress.io
1 2 (66.67%) GitLab
2 1 (33.33%) JIRA
2 1 (33.33%) Mocha
2 1 (33.33%) Postman
General
1 2 (66.67%) Social Skills
1 2 (66.67%) Telecoms
2 1 (33.33%) Analytical Skills
Job Titles
1 1 (33.33%) Automation Engineer
1 1 (33.33%) DevOps Engineer
Libraries, Frameworks & Software Standards
1 2 (66.67%) Node.js
2 1 (33.33%) Elastic Stack
2 1 (33.33%) Fastify
2 1 (33.33%) GraphQL
2 1 (33.33%) Jest
2 1 (33.33%) Loki
2 1 (33.33%) OAuth
2 1 (33.33%) OAuth2
2 1 (33.33%) OpenAPI
2 1 (33.33%) OpenID
2 1 (33.33%) RESTful
2 1 (33.33%) Swagger
2 1 (33.33%) WebRTC
2 1 (33.33%) YAML
Miscellaneous
1 1 (33.33%) Cloud Native
Operating Systems
1 1 (33.33%) Linux
Processes & Methodologies
1 3 (100.00%) CI/CD
1 3 (100.00%) DevOps
2 2 (66.67%) Agile
2 2 (66.67%) Problem-Solving
3 1 (33.33%) Application Security
3 1 (33.33%) Asynchronous Programming
3 1 (33.33%) Cross-Browser Testing
3 1 (33.33%) Digital Transformation Programme
3 1 (33.33%) Functional Testing
3 1 (33.33%) GitOps
3 1 (33.33%) High Availability
3 1 (33.33%) Microservices
3 1 (33.33%) Non-Blocking Code
3 1 (33.33%) Open Source
3 1 (33.33%) Root Cause Analysis
3 1 (33.33%) Scrum
3 1 (33.33%) Secure Coding
3 1 (33.33%) Test Automation
3 1 (33.33%) Test Management
3 1 (33.33%) Zero Trust
Programming Languages
1 2 (66.67%) Python
2 1 (33.33%) Bash
2 1 (33.33%) SQL
Qualifications
1 1 (33.33%) DV Cleared
1 1 (33.33%) SC Cleared
1 1 (33.33%) Security Cleared
Quality Assurance & Compliance
1 1 (33.33%) Accessibility
1 1 (33.33%) QA
1 1 (33.33%) WCAG
System Software
1 2 (66.67%) Docker
Systems Management
1 2 (66.67%) Grafana
1 2 (66.67%) Kubernetes
2 1 (33.33%) Ansible
2 1 (33.33%) Argo
2 1 (33.33%) Prometheus
2 1 (33.33%) Puppet
2 1 (33.33%) Terraform
Vendors
1 1 (33.33%) Google
1 1 (33.33%) Splunk
6 JavaScript jobs in the City of Westminster