WebAssembly Contracts

WebAssembly (Wasm)
UK

The table below provides summary statistics for contract job vacancies requiring WebAssembly skills. It includes a benchmarking guide to the contractor rates offered in vacancies that cited WebAssembly over the 6 months leading up to 23 May 2025, comparing them to the same period in the previous two years.

6 months to
23 May 2025
Same period 2024 Same period 2023
Rank 519 - 676
Rank change year-on-year - - +155
Contract jobs citing WebAssembly 2 0 6
As % of all contract jobs advertised in the UK 0.007% - 0.011%
As % of the Libraries, Frameworks & Software Standards category 0.031% - 0.046%
Number of daily rates quoted 2 0 2
10th Percentile £358 - £533
25th Percentile £370 - £546
Median daily rate (50th Percentile) £394 - £584
Median % change year-on-year - - -15.09%
75th Percentile £420 - £613
90th Percentile £434 - £621
UK excluding London median daily rate - - -

All Software Libraries and Frameworks
UK

WebAssembly falls under the Software Libraries and Frameworks category. For comparison with the information above, the following table provides summary statistics for all contract job vacancies requiring technical specification, industry standards, software libraries and framework skills.

Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 6,513 8,901 13,096
As % of all contract IT jobs advertised in the UK 22.72% 20.98% 23.13%
Number of daily rates quoted 4,467 6,193 9,549
10th Percentile £363 £350 £400
25th Percentile £415 £425 £463
Median daily rate (50th Percentile) £525 £535 £550
Median % change year-on-year -1.87% -2.73% -
75th Percentile £638 £650 £675
90th Percentile £775 £775 £775
UK excluding London median daily rate £475 £500 £500
% change year-on-year -5.00% - -
Number of hourly rates quoted 104 249 146
10th Percentile £27.43 £21.25 £25.75
25th Percentile £38.89 £43.00 £50.35
Median hourly rate £62.50 £47.50 £65.00
Median % change year-on-year +31.58% -26.92% +30.00%
75th Percentile £68.75 £65.00 £75.00
90th Percentile £81.35 £74.44 £81.00
UK excluding London median hourly rate £65.00 £47.50 £65.00
% change year-on-year +36.84% -26.92% +30.00%

WebAssembly
Job Vacancy Trend

Job postings citing WebAssembly as a proportion of all IT jobs advertised.

Job vacancy trend for WebAssembly in the UK

WebAssembly
Contractor Daily Rate Trend

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

Daily rate trend for WebAssembly in the UK

WebAssembly
Top 1 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing WebAssembly within the UK over the 6 months to 23 May 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
Work from Home - 2 £394 - 102

WebAssembly
Co-occurring Skills and Capabilities 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:

Cloud Services
1 2 (100.00%) SaaS
Development Applications
1 2 (100.00%) GitLab
Job Titles
1 1 (50.00%) Developer
1 1 (50.00%) Front-End Engineer (Client-Side Engineer)
1 1 (50.00%) JavaScript Developer
1 1 (50.00%) Senior
1 1 (50.00%) Senior Developer
1 1 (50.00%) Senior JavaScript Developer
Libraries, Frameworks & Software Standards
1 2 (100.00%) Playwright
1 2 (100.00%) React
Miscellaneous
1 1 (50.00%) Virtual Team
Processes & Methodologies
1 2 (100.00%) B2B
2 1 (50.00%) Async-Await
2 1 (50.00%) Asynchronous Programming
2 1 (50.00%) Customer-Centricity
2 1 (50.00%) End-to-End Testing
2 1 (50.00%) Front End Development
2 1 (50.00%) Full-Stack Development
2 1 (50.00%) Performance Tuning
2 1 (50.00%) Problem-Solving
2 1 (50.00%) User Experience
Programming Languages
1 2 (100.00%) TypeScript
2 1 (50.00%) JavaScript
System Software
1 2 (100.00%) Docker
Systems Management
1 2 (100.00%) Grafana
1 2 (100.00%) Kubernetes
1 2 (100.00%) Prometheus
Vendors
1 2 (100.00%) Google