JavaScript Contracts in London

JavaScript (including ECMAScript)
England > London

The table below provides summary statistics for contract job vacancies advertised in London requiring JavaScript skills. It includes a benchmarking guide to the contractor rates offered in vacancies that cited JavaScript over the 6 months leading up to 4 June 2025, comparing them to the same period in the previous two years.

6 months to
4 Jun 2025
Same period 2024 Same period 2023
Rank 28 28 24
Rank change year-on-year 0 -4 -7
Contract jobs citing JavaScript 821 1,112 1,803
As % of all contract jobs advertised in London 6.80% 6.38% 7.05%
As % of the Programming Languages category 17.20% 17.14% 17.63%
Number of daily rates quoted 600 875 1,339
10th Percentile £380 £402 £413
25th Percentile £427 £475 £475
Median daily rate (50th Percentile) £575 £600 £575
Median % change year-on-year -4.17% +4.35% -2.71%
75th Percentile £717 £800 £700
90th Percentile £838 £850 £788
England median daily rate £525 £550 £550
% change year-on-year -4.55% - -
Number of hourly rates quoted 11 2 12
10th Percentile - £41.68 £35.10
25th Percentile £33.25 £43.06 £36.41
Median hourly rate £34.50 £45.75 £58.75
Median % change year-on-year -24.59% -22.13% +23.68%
75th Percentile £39.89 £48.06 £74.06
90th Percentile £45.75 £49.23 £75.00
England median hourly rate £57.75 £65.00 £70.00
% change year-on-year -11.15% -7.14% +30.17%

All Programming Languages
London

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 London.

Contract vacancies with a requirement for coding skills 4,774 6,488 10,227
As % of all contract IT jobs advertised in London 39.52% 37.24% 39.98%
Number of daily rates quoted 3,338 4,942 7,712
10th Percentile £378 £375 £413
25th Percentile £436 £463 £500
Median daily rate (50th Percentile) £550 £575 £600
Median % change year-on-year -4.35% -4.17% -
75th Percentile £713 £700 £738
90th Percentile £825 £838 £825
England median daily rate £525 £540 £563
% change year-on-year -2.78% -4.09% +2.36%
Number of hourly rates quoted 39 53 74
10th Percentile £28.68 £23.80 £25.75
25th Percentile £33.25 £33.07 £39.31
Median hourly rate £37.50 £50.50 £60.00
Median % change year-on-year -25.74% -15.83% +23.71%
75th Percentile £53.75 £62.50 £75.00
90th Percentile £71.25 £72.50 £88.50
England median hourly rate £62.00 £62.50 £62.50
% change year-on-year -0.80% - +19.62%

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 4 June 2025.

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 4 June 2025.

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 4 June 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
Central London +12 118 £550 +2.33% 129
West London -7 11 £499 -0.24% 211
South London -5 7 £489 +8.61% 5
East London +5 4 £580 +7.41% 21
JavaScript
England

JavaScript
Co-occurring Skills and Capabilities in London 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 61 (7.43%) Apache Airflow
2 44 (5.36%) Apache
3 22 (2.68%) SharePoint
4 17 (2.07%) Apache Spark
5 15 (1.83%) Confluence
6 10 (1.22%) CMS
7 6 (0.73%) nginx
8 4 (0.49%) Drupal
9 3 (0.37%) Adobe Experience Manager
9 3 (0.37%) BizTalk Server
9 3 (0.37%) Headless CMS
9 3 (0.37%) IIS
10 2 (0.24%) Appian
10 2 (0.24%) ArcGIS
10 2 (0.24%) govService
10 2 (0.24%) Microsoft Exchange
10 2 (0.24%) Oracle SOA Suite
10 2 (0.24%) Tomcat
11 1 (0.12%) Magnolia
Applications
1 4 (0.49%) Adobe XD
1 4 (0.49%) Sketch
2 3 (0.37%) Microsoft Excel
2 3 (0.37%) Microsoft Office
3 2 (0.24%) Adobe Creative Suite
3 2 (0.24%) Microsoft PowerPoint
3 2 (0.24%) Microsoft Project
4 1 (0.12%) Adobe After Effects
4 1 (0.12%) Adobe Illustrator
4 1 (0.12%) InVision
4 1 (0.12%) MS Visio
4 1 (0.12%) Photoshop
4 1 (0.12%) Trello
Business Applications
1 41 (4.99%) Dynamics CRM
2 6 (0.73%) Shopify
3 3 (0.37%) Endur
3 3 (0.37%) Salesforce CRM
4 2 (0.24%) NetSuite
4 2 (0.24%) OpenText MBPM
4 2 (0.24%) Oracle BPM
4 2 (0.24%) Oracle EBS
5 1 (0.12%) FastStats
5 1 (0.12%) FLEXCUBE
5 1 (0.12%) Magento
Cloud Services
1 324 (39.46%) AWS
2 205 (24.97%) Azure
3 126 (15.35%) GCP
4 87 (10.60%) Serverless
5 74 (9.01%) Power Platform
6 63 (7.67%) Azure DevOps
7 62 (7.55%) dbt
8 61 (7.43%) GitHub
9 53 (6.46%) AWS Lambda
10 51 (6.21%) Power Automate
11 50 (6.09%) Dynamics 365
12 47 (5.72%) PowerApps
13 33 (4.02%) Snowflake
14 28 (3.41%) Amazon S3
14 28 (3.41%) GitHub Actions
15 25 (3.05%) Azure Logic Apps
16 23 (2.80%) Amazon SQS
17 20 (2.44%) Azure Functions
18 19 (2.31%) Azure Data Factory
18 19 (2.31%) Entra ID
Communications & Networking
1 26 (3.17%) HTTP
2 10 (1.22%) DNS
3 9 (1.10%) HTTPS
4 5 (0.61%) TCP/IP
5 4 (0.49%) DHCP
5 4 (0.49%) Intranet
5 4 (0.49%) SSL
6 3 (0.37%) Firewall
6 3 (0.37%) POP3
6 3 (0.37%) SMTP
6 3 (0.37%) VPN
7 2 (0.24%) Intrusion Detection
8 1 (0.12%) Broadband
8 1 (0.12%) IPsec
8 1 (0.12%) Kerberos
Database & Business Intelligence
1 104 (12.67%) PostgreSQL
2 62 (7.55%) SQL Server
3 61 (7.43%) Amazon Athena
3 61 (7.43%) Apache Iceberg
3 61 (7.43%) Dremio
4 59 (7.19%) Apache Arrow
5 47 (5.72%) NoSQL
6 42 (5.12%) Data Lake
7 35 (4.26%) MongoDB
8 34 (4.14%) Apache Ignite
9 33 (4.02%) Power BI
10 30 (3.65%) DynamoDB
11 21 (2.56%) Redis
12 18 (2.19%) SQL Server Reporting Services
13 16 (1.95%) Relational Database
14 15 (1.83%) Big Data
15 14 (1.71%) MySQL
16 11 (1.34%) Amazon RDS
16 11 (1.34%) Hadoop
17 10 (1.22%) Neo4j
Development Applications
1 134 (16.32%) Git
2 63 (7.67%) Jenkins
3 54 (6.58%) JIRA
4 40 (4.87%) Cypress.io
5 34 (4.14%) GitLab
6 29 (3.53%) Bitbucket
7 23 (2.80%) webpack
8 22 (2.68%) Selenium
9 21 (2.56%) SonarQube
9 21 (2.56%) TeamCity
10 19 (2.31%) REST Assured
11 16 (1.95%) JMeter
11 16 (1.95%) Postman
12 13 (1.58%) JUnit
12 13 (1.58%) Maven
13 11 (1.34%) CircleCI
14 9 (1.10%) Gatling
14 9 (1.10%) SoapUI
15 8 (0.97%) Mocha
15 8 (0.97%) Mockito
General
1 254 (30.94%) Finance
2 186 (22.66%) Social Skills
3 156 (19.00%) Banking
4 149 (18.15%) Front Office
5 95 (11.57%) Analytical Skills
6 76 (9.26%) Investment Banking
7 72 (8.77%) Public Sector
8 31 (3.78%) Marketing
9 17 (2.07%) Presentation Skills
10 13 (1.58%) Retail
11 11 (1.34%) Financial Institution
11 11 (1.34%) Inclusion and Diversity
11 11 (1.34%) Telecoms
12 8 (0.97%) Back Office
12 8 (0.97%) Organisational Skills
13 6 (0.73%) Legal
13 6 (0.73%) Local Government
14 5 (0.61%) Advertising
14 5 (0.61%) Documentation Skills
15 4 (0.49%) Retail Banking
Job Titles
1 466 (56.76%) Developer
2 158 (19.24%) Software Engineer
3 124 (15.10%) Senior
4 87 (10.60%) Developer/Software Engineer
4 87 (10.60%) Full-Stack Developer
5 77 (9.38%) AWS Engineer
6 71 (8.65%) React Developer
7 61 (7.43%) AWS Software Engineer
8 60 (7.31%) Architect
9 54 (6.58%) Lead
10 53 (6.46%) Senior Developer
11 52 (6.33%) Python Developer
12 51 (6.21%) AWS Developer
13 50 (6.09%) Python Engineer
14 46 (5.60%) Python Software Engineer
15 44 (5.36%) Java Engineer
16 42 (5.12%) Java Developer
17 40 (4.87%) Senior Software Engineer
18 38 (4.63%) Java Software Engineer
19 33 (4.02%) Solutions Architect
Libraries, Frameworks & Software Standards
1 328 (39.95%) React
2 241 (29.35%) HTML
3 235 (28.62%) CSS
4 200 (24.36%) Node.js
5 149 (18.15%) AngularJS
6 142 (17.30%) .NET
7 103 (12.55%) REST
8 95 (11.57%) Redux
9 94 (11.45%) Vue
10 79 (9.62%) RESTful
11 76 (9.26%) Pandas
12 74 (9.01%) Web Services
13 73 (8.89%) NumPy
14 71 (8.65%) SciPy
15 56 (6.82%) HTML5
16 47 (5.72%) SOAP
17 45 (5.48%) JSON
18 42 (5.12%) jQuery
19 40 (4.87%) Protocol Buffers
19 40 (4.87%) Spring
Miscellaneous
1 115 (14.01%) Fixed Income
2 100 (12.18%) Foreign Exchange (FX)
3 73 (8.89%) Equities
4 59 (7.19%) Hedge funds
5 37 (4.51%) Derivative
6 30 (3.65%) Product Ownership
7 25 (3.05%) Greenfield Project
8 22 (2.68%) Pricing Data
9 20 (2.44%) Cloud Native
9 20 (2.44%) Data Structures
10 19 (2.31%) Algorithms
10 19 (2.31%) Enterprise Software
11 16 (1.95%) Mobile App
11 16 (1.95%) Self-Motivation
12 11 (1.34%) CMDB
12 11 (1.34%) Data Protection Act
13 10 (1.22%) Low-Code
13 10 (1.22%) Public Cloud
14 9 (1.10%) Management Information System
14 9 (1.10%) Onboarding
Operating Systems
1 31 (3.78%) Linux
2 25 (3.05%) Windows
3 20 (2.44%) Unix
4 12 (1.46%) Android
5 10 (1.22%) Windows Server
6 9 (1.10%) Apple iOS
7 4 (0.49%) Red Hat Enterprise Linux
8 3 (0.37%) CentOS
9 2 (0.24%) Mac OS X
10 1 (0.12%) SUSE
Processes & Methodologies
1 391 (47.62%) Agile
2 216 (26.31%) Software Engineering
3 192 (23.39%) CI/CD
4 167 (20.34%) DevOps
5 149 (18.15%) Full-Stack Development
6 123 (14.98%) Problem-Solving
7 115 (14.01%) Asset Management
8 114 (13.89%) Investment Management
9 106 (12.91%) Microservices
10 105 (12.79%) User Experience
11 101 (12.30%) Fintech
12 79 (9.62%) Mentoring
12 79 (9.62%) Test Automation
13 73 (8.89%) Analytics
13 73 (8.89%) Scrum
14 69 (8.40%) TDD
15 64 (7.80%) Front End Development
16 62 (7.55%) Clean Code
17 55 (6.70%) Containerisation
17 55 (6.70%) Web Development
Programming Languages
1 317 (38.61%) TypeScript
2 283 (34.47%) Python
3 245 (29.84%) Java
4 193 (23.51%) C#
5 164 (19.98%) SQL
6 34 (4.14%) PowerShell
7 33 (4.02%) C++
8 26 (3.17%) PHP
9 19 (2.31%) Go
10 18 (2.19%) Shell Script
11 17 (2.07%) Groovy
11 17 (2.07%) Ruby
12 15 (1.83%) Scala
13 14 (1.71%) Apex Code
13 14 (1.71%) Rust
14 13 (1.58%) T-SQL
15 12 (1.46%) Bicep
16 9 (1.10%) Perl
17 7 (0.85%) BeanShell
17 7 (0.85%) PL/SQL
Qualifications
1 131 (15.96%) Security Cleared
2 106 (12.91%) SC Cleared
3 53 (6.46%) Degree
4 28 (3.41%) Computer Science Degree
5 16 (1.95%) AWS Certification
6 12 (1.46%) AWS Certified Developer
6 12 (1.46%) DV Cleared
7 10 (1.22%) BPSS Clearance
8 4 (0.49%) Azure Certification
8 4 (0.49%) Microsoft Certification
9 3 (0.37%) Master's Degree
10 2 (0.24%) ISTQB
10 2 (0.24%) Sun Certification
11 1 (0.12%) CCA
11 1 (0.12%) CEH
11 1 (0.12%) CISSP
11 1 (0.12%) CTC Cleared
11 1 (0.12%) ITIL Certification
11 1 (0.12%) PMI Certification
11 1 (0.12%) PMP
Quality Assurance & Compliance
1 58 (7.06%) QA
2 57 (6.94%) Accessibility
3 15 (1.83%) WCAG
4 6 (0.73%) Data Quality
5 5 (0.61%) ISO/IEC 27001
6 3 (0.37%) EMIR
6 3 (0.37%) Government Security Classifications
6 3 (0.37%) GRC
6 3 (0.37%) HL7
6 3 (0.37%) MiFID
7 2 (0.24%) DICOM
7 2 (0.24%) GDPR
7 2 (0.24%) HMG Security Policy Framework
7 2 (0.24%) SLA
7 2 (0.24%) Software Quality Assurance
7 2 (0.24%) WAI
8 1 (0.12%) Actionable Recommendations
8 1 (0.12%) PCI DSS
System Software
1 79 (9.62%) Docker
2 27 (3.29%) Active Directory
3 6 (0.73%) Virtual Machines
4 5 (0.61%) OpenAM
4 5 (0.61%) OpenDJ
4 5 (0.61%) OpenIDM
4 5 (0.61%) VMware Infrastructure
5 3 (0.37%) vCloud
5 3 (0.37%) VMware Workstation
5 3 (0.37%) vSphere
6 1 (0.12%) RACF
Systems Management
1 106 (12.91%) Kubernetes
2 35 (4.26%) Terraform
3 14 (1.71%) Ansible
3 14 (1.71%) Single Sign-On
4 8 (0.97%) Grafana
5 7 (0.85%) Kibana
5 7 (0.85%) Prometheus
6 6 (0.73%) Puppet
7 4 (0.49%) Perfmon
8 2 (0.24%) Active Directory Federation Services
9 1 (0.12%) Argo
9 1 (0.12%) Nagios
9 1 (0.12%) Packer
9 1 (0.12%) Progress Chef
9 1 (0.12%) Rancher
9 1 (0.12%) Red Hat Satellite
9 1 (0.12%) Sysdig
Vendors
1 99 (12.06%) Microsoft
2 47 (5.72%) ServiceNow
3 43 (5.24%) Oracle
4 22 (2.68%) Databricks
4 22 (2.68%) Google
4 22 (2.68%) Salesforce
5 21 (2.56%) Adobe
6 15 (1.83%) OutSystems
7 13 (1.58%) SAP
8 12 (1.46%) Atlassian
8 12 (1.46%) Splunk
9 11 (1.34%) ForgeRock
10 9 (1.10%) Dynatrace
11 8 (0.97%) Cloudera
12 6 (0.73%) VMware
13 4 (0.49%) Bloomberg
13 4 (0.49%) Reuters
13 4 (0.49%) Sitecore
13 4 (0.49%) Sybase
13 4 (0.49%) Talend