JSON Contract Job Trends in South London

JSON
London > South London

The table below provides summary statistics and contractor rates for jobs advertised in South London requiring JSON skills. It covers contract job vacancies from the 6 months leading up to 13 April 2026, with comparisons to the same periods in the previous two years.

6 months to
13 Apr 2026
Same period 2025 Same period 2024
Rank 49 34 36
Rank change year-on-year -15 +2 +15
Contract jobs citing JSON 2 4 6
As % of all contract jobs in South London 0.62% 2.02% 2.46%
As % of the Libraries, Frameworks & Software Standards category 2.53% 8.00% 11.11%
Number of daily rates quoted 2 3 6
10th Percentile £470 £433 £425
25th Percentile £519 £444 £446
Median daily rate (50th Percentile) £625 £475 £510
Median % change year-on-year +31.58% -6.86% +13.33%
75th Percentile £719 £497 £531
90th Percentile £760 £503 £538
London median daily rate £550 £525 £540
% change year-on-year +4.76% -2.78% -6.09%

All Software Libraries and Frameworks
South London

JSON 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 South London.

Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 79 50 54
As % of all contract IT jobs advertised in South London 24.31% 25.25% 22.13%
Number of daily rates quoted 59 33 36
10th Percentile £462 £380 £425
25th Percentile £500 £450 £463
Median daily rate (50th Percentile) £521 £500 £538
Median % change year-on-year +4.10% -7.06% +7.60%
75th Percentile £548 £638 £609
90th Percentile £585 £738 £704
London median daily rate £538 £575 £575
% change year-on-year -6.52% - -4.17%
Number of hourly rates quoted 0 0 1
10th Percentile - - -
25th Percentile - - £37.08
Median hourly rate - - £38.16
Median % change year-on-year - - -27.97%
75th Percentile - - £39.23
90th Percentile - - -
London median hourly rate £43.50 £54.00 £37.17
% change year-on-year -19.44% +45.28% -44.52%

JSON
Job Vacancy Trend in South London

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

JSON job vacancy trend in South London

JSON
Daily Rate Trend in South London

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

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

JSON
Daily Rate Histogram in South London

Daily rate distribution for jobs citing JSON in South London over the 6 months to 13 April 2026.

Daily rate histogram for JSON in South London

JSON
Contract Job Locations in South London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing JSON within the South London region over the 6 months to 13 April 2026. 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
Bromley -2 1 £475 - 7
Croydon -17 1 £775 +63.16% 3
JSON
London

JSON
Co-Occurring Skills & Capabilities in South 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:

Cloud Services
1 1 (50.00%) AWS
1 1 (50.00%) Azure
1 1 (50.00%) Azure Service Bus
1 1 (50.00%) Boomi
1 1 (50.00%) GCP
1 1 (50.00%) iPaaS
1 1 (50.00%) SaaS
Communications & Networking
1 1 (50.00%) HTTP
Database & Business Intelligence
1 1 (50.00%) Metadata
Job Titles
1 1 (50.00%) Architect
1 1 (50.00%) Developer
1 1 (50.00%) Integration Architect
1 1 (50.00%) Java Developer
Libraries, Frameworks & Software Standards
1 1 (50.00%) GraphQL
1 1 (50.00%) Kafka
1 1 (50.00%) Middleware
1 1 (50.00%) OAuth
1 1 (50.00%) OAuth2
1 1 (50.00%) OpenAPI
1 1 (50.00%) OpenID
1 1 (50.00%) RabbitMQ
1 1 (50.00%) REST
1 1 (50.00%) SOAP
1 1 (50.00%) Swagger
1 1 (50.00%) XML
Miscellaneous
1 1 (50.00%) Data Protection Act
1 1 (50.00%) Legacy Systems
Processes & Methodologies
1 1 (50.00%) API Design
1 1 (50.00%) API Management
1 1 (50.00%) CI/CD
1 1 (50.00%) Data Pipeline
1 1 (50.00%) Data Protection
1 1 (50.00%) Event-Driven
1 1 (50.00%) Event-Driven Architecture
1 1 (50.00%) Integration Patterns
1 1 (50.00%) Mentoring
1 1 (50.00%) Metadata Management
1 1 (50.00%) Microservices
1 1 (50.00%) Observability
1 1 (50.00%) SFIA
1 1 (50.00%) Stakeholder Management
1 1 (50.00%) Technical Leadership
1 1 (50.00%) TOGAF
Programming Languages
1 1 (50.00%) Java
Qualifications
1 1 (50.00%) Azure Certification
1 1 (50.00%) SC Cleared
1 1 (50.00%) Security Cleared
1 1 (50.00%) TOGAF Certification
Vendors
1 1 (50.00%) Dynatrace
1 1 (50.00%) MuleSoft