JSON Schema Contract Job Trends in London

JSON Schema
England > London

The table below provides summary statistics and contractor rates for jobs advertised in London requiring JSON Schema skills. It covers contract job vacancies from the 6 months leading up to 5 December 2025, with comparisons to the same periods in the previous two years.

6 months to
5 Dec 2025
Same period 2024 Same period 2023
Rank 382 385 396
Rank change year-on-year +3 +11 +166
Contract jobs citing JSON Schema 3 3 18
As % of all contract jobs in London 0.021% 0.019% 0.093%
As % of the Libraries, Frameworks & Software Standards category 0.080% 0.073% 0.36%
Number of daily rates quoted 1 1 13
10th Percentile - - £499
25th Percentile £430 £550 £566
Median daily rate (50th Percentile) £440 £600 £600
Median % change year-on-year -26.67% - -14.29%
75th Percentile £450 £650 £700
90th Percentile - - £740
England median daily rate £508 £675 £600
% change year-on-year -24.81% +12.50% -12.73%

All Software Libraries and Frameworks
London

JSON Schema 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 in London.

Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 3,749 4,100 5,024
As % of all contract IT jobs advertised in London 26.09% 25.96% 26.01%
Number of daily rates quoted 2,541 2,681 3,789
10th Percentile £356 £378 £400
25th Percentile £424 £463 £475
Median daily rate (50th Percentile) £525 £575 £588
Median % change year-on-year -8.70% -2.13% -2.08%
75th Percentile £653 £713 £700
90th Percentile £775 £838 £800
England median daily rate £503 £550 £550
% change year-on-year -8.64% - -4.51%
Number of hourly rates quoted 28 20 31
10th Percentile £34.16 £36.13 £32.00
25th Percentile £43.44 £38.44 £36.55
Median hourly rate £55.00 £48.75 £57.50
Median % change year-on-year +12.82% -15.22% -7.63%
75th Percentile £63.19 £63.13 £72.83
90th Percentile £77.03 £71.90 £86.56
England median hourly rate £57.30 £65.00 £54.50
% change year-on-year -11.85% +19.27% -16.15%

JSON Schema
Job Vacancy Trend in London

Historical trend showing the proportion of contract IT job postings citing JSON Schema relative to all contract IT jobs advertised in London.

JSON Schema job vacancy trend in London

JSON Schema
Daily Rate Trend in London

Contractor daily rate distribution trend for jobs in London citing JSON Schema.

Contractor daily rate distribution trend for jobs in London citing JSON Schema

JSON Schema
Co-Occurring Skills & Capabilities in London by Category

The following tables expand on the one above by listing co-occurrences grouped by category. They cover the same employment type, locality and period, with up to 20 co-occurrences shown in each category:

Application Platforms
1 1 (33.33%) Confluence
Cloud Services
1 1 (33.33%) Azure
1 1 (33.33%) Azure AKS
1 1 (33.33%) Azure DevOps
1 1 (33.33%) Azure Functions
1 1 (33.33%) Serverless
Development Applications
1 1 (33.33%) Git
1 1 (33.33%) Jenkins
1 1 (33.33%) JIRA
General
1 2 (66.67%) Banking
Job Titles
1 2 (66.67%) Developer
1 2 (66.67%) Senior
2 1 (33.33%) C# Developer
2 1 (33.33%) Data Modeller
2 1 (33.33%) Senior C# Developer
2 1 (33.33%) Senior Data Modeller
2 1 (33.33%) Senior Developer
2 1 (33.33%) UI Developer
Libraries, Frameworks & Software Standards
1 3 (100.00%) JSON
2 1 (33.33%) .NET
2 1 (33.33%) CSS
2 1 (33.33%) CSS3
2 1 (33.33%) GraphQL
2 1 (33.33%) HTML
2 1 (33.33%) HTML5
2 1 (33.33%) Kafka
2 1 (33.33%) React
Miscellaneous
1 1 (33.33%) Cloud Native
1 1 (33.33%) Reference Data
Processes & Methodologies
1 1 (33.33%) Agile
1 1 (33.33%) API Integration
1 1 (33.33%) Backlog Management
1 1 (33.33%) Business Intelligence
1 1 (33.33%) CI/CD
1 1 (33.33%) Containerisation
1 1 (33.33%) Data Analysis
1 1 (33.33%) Data Architecture
1 1 (33.33%) Data Integration
1 1 (33.33%) Data Management
1 1 (33.33%) Data Modelling
1 1 (33.33%) DevOps
1 1 (33.33%) Logical Data Model
1 1 (33.33%) Microservices
1 1 (33.33%) Physical Data Model
1 1 (33.33%) Reference Data Management
1 1 (33.33%) Responsive Web Design
1 1 (33.33%) Scrum
1 1 (33.33%) Test Automation
1 1 (33.33%) Validation
Programming Languages
1 1 (33.33%) C#
1 1 (33.33%) JavaScript
1 1 (33.33%) SQL
System Software
1 1 (33.33%) Docker
Vendors
1 1 (33.33%) Confluent
1 1 (33.33%) Oracle