WebAssembly Jobs

WebAssembly (Wasm)
UK

The table below provides summary statistics for permanent job vacancies requiring WebAssembly skills. It includes a benchmarking guide to the annual salaries offered in vacancies that cited WebAssembly over the 6 months leading up to 28 May 2025, comparing them to the same period in the previous two years.

6 months to
28 May 2025
Same period 2024 Same period 2023
Rank 705 903 880
Rank change year-on-year +198 -23 +275
Permanent jobs citing WebAssembly 6 7 84
As % of all permanent jobs advertised in the UK 0.011% 0.007% 0.086%
As % of the Libraries, Frameworks & Software Standards category 0.065% 0.033% 0.29%
Number of salaries quoted 3 7 11
10th Percentile £63,000 £61,500 £37,000
25th Percentile £63,750 £71,250 £48,750
Median annual salary (50th Percentile) £70,000 £155,000 £70,000
Median % change year-on-year -54.84% +121.43% +21.74%
75th Percentile £85,000 £157,500 £75,000
90th Percentile £91,000 - £80,000
UK excluding London median annual salary £90,000 £62,500 £70,000
% change year-on-year +44.00% -10.71% +64.71%

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 permanent job vacancies requiring technical specification, industry standards, software libraries and framework skills.

Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 9,208 21,249 29,392
As % of all permanent jobs advertised in the UK 16.84% 20.80% 30.01%
Number of salaries quoted 5,664 15,856 18,240
10th Percentile £38,750 £36,250 £40,500
25th Percentile £51,250 £45,000 £51,000
Median annual salary (50th Percentile) £66,254 £60,000 £67,500
Median % change year-on-year +10.42% -11.11% +3.85%
75th Percentile £87,500 £78,750 £87,500
90th Percentile £112,350 £100,000 £106,250
UK excluding London median annual salary £60,000 £55,000 £57,500
% change year-on-year +9.09% -4.35% +4.55%

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
Salary Trend

3-month moving average salary quoted in jobs citing WebAssembly.

Salary trend for WebAssembly in the UK

WebAssembly
Salary Histogram

Salary distribution for jobs citing WebAssembly over the 6 months to 28 May 2025.

Salary histogram for WebAssembly in the UK

WebAssembly
Top 7 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing WebAssembly within the UK over the 6 months to 28 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Jobs
England +159 6 £70,000 -54.84% 160
Work from Home +120 5 £70,000 -54.84% 98
UK excluding London +196 4 £90,000 +44.00% 170
South East - 2 - - 36
Midlands - 1 - - 31
West Midlands - 1 - - 17
East of England - 1 £90,000 - 29

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:

Application Platforms
1 1 (16.67%) CMS
1 1 (16.67%) Sitefinity
Cloud Services
1 1 (16.67%) Azure
1 1 (16.67%) Azure DevOps
1 1 (16.67%) Figma
1 1 (16.67%) GitHub
1 1 (16.67%) GitHub Actions
Development Applications
1 3 (50.00%) Git
2 2 (33.33%) Cypress.io
2 2 (33.33%) Vite
2 2 (33.33%) webpack
3 1 (16.67%) JIRA
3 1 (16.67%) SpecFlow
General
1 2 (33.33%) Games
1 2 (33.33%) Law
Job Titles
1 3 (50.00%) Developer
1 3 (50.00%) Senior
2 2 (33.33%) .NET Developer
2 2 (33.33%) Blazor Developer
2 2 (33.33%) Front-End Engineer (Client-Side Engineer)
2 2 (33.33%) Gen AI Engineer
2 2 (33.33%) Senior Front-End Engineer (Client-Side Engineer)
2 2 (33.33%) UI Engineer
2 2 (33.33%) UX Engineer
3 1 (16.67%) Application Development Manager
3 1 (16.67%) Applications Development Manager
3 1 (16.67%) Applications Manager
3 1 (16.67%) Development Manager
3 1 (16.67%) Digital Developer
3 1 (16.67%) Senior Developer
3 1 (16.67%) Web Development Manager
3 1 (16.67%) Web Manager
Libraries, Frameworks & Software Standards
1 4 (66.67%) .NET
1 4 (66.67%) Blazor
1 4 (66.67%) CSS
1 4 (66.67%) HTML
2 3 (50.00%) .NET Framework
2 3 (50.00%) React
2 3 (50.00%) Svelte
2 3 (50.00%) Vue
3 2 (33.33%) Enzyme
3 2 (33.33%) Jest
3 2 (33.33%) Next.js
3 2 (33.33%) Node.js
3 2 (33.33%) OpenAPI
3 2 (33.33%) Parceljs
3 2 (33.33%) RESTful
4 1 (16.67%) AngularJS
4 1 (16.67%) Bootstrap
4 1 (16.67%) Entity Framework
4 1 (16.67%) HTML5
4 1 (16.67%) JSON
Miscellaneous
1 2 (33.33%) Algorithms
2 1 (16.67%) Legacy Applications
Processes & Methodologies
1 4 (66.67%) Agile
1 4 (66.67%) Artificial Intelligence
2 3 (50.00%) DevOps
2 3 (50.00%) Problem-Solving
2 3 (50.00%) Software Engineering
3 2 (33.33%) API Integration
3 2 (33.33%) Artificial Intelligence Engineering
3 2 (33.33%) CI/CD
3 2 (33.33%) Cloud Security
3 2 (33.33%) Containerisation
3 2 (33.33%) Data Science
3 2 (33.33%) Front End Development
3 2 (33.33%) Generative AI
3 2 (33.33%) Jamstack
3 2 (33.33%) LLM
3 2 (33.33%) Micro Frontends
3 2 (33.33%) Platform Engineering
3 2 (33.33%) Technology Strategy
3 2 (33.33%) Translating Business Requirements
3 2 (33.33%) User Experience
Programming Languages
1 6 (100.00%) JavaScript
2 4 (66.67%) C#
3 3 (50.00%) TypeScript
4 2 (33.33%) Go
4 2 (33.33%) Python
5 1 (16.67%) SQL
Quality Assurance & Compliance
1 2 (33.33%) Accessibility
Systems Management
1 2 (33.33%) Kubernetes