JSON Contracts in South London

JSON
London > South London

The table below provides summary statistics for contract job vacancies advertised in South London requiring JSON skills. It includes a benchmarking guide to the contractor rates offered in vacancies that cited JSON over the 6 months leading up to 1 May 2025, comparing them to the same period in the previous two years.

6 months to
1 May 2025
Same period 2024 Same period 2023
Rank 29 36 50
Rank change year-on-year +7 +14 0
Contract jobs citing JSON 6 6 5
As % of all contract jobs advertised in South London 3.24% 2.48% 1.30%
As % of the Libraries, Frameworks & Software Standards category 11.76% 10.34% 5.49%
Number of daily rates quoted 3 6 5
10th Percentile £433 £425 -
25th Percentile £444 £446 £413
Median daily rate (50th Percentile) £475 £510 £450
Median % change year-on-year -6.86% +13.33% -
75th Percentile £497 £531 -
90th Percentile £503 £538 £593
London median daily rate £535 £538 £575
% change year-on-year -0.56% -6.43% -2.54%

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 51 58 91
As % of all contract IT jobs advertised in South London 27.57% 23.97% 23.70%
Number of daily rates quoted 32 38 66
10th Percentile £380 £425 £438
25th Percentile £449 £453 £455
Median daily rate (50th Percentile) £498 £513 £500
Median % change year-on-year -2.93% +2.50% -13.87%
75th Percentile £638 £590 £649
90th Percentile £738 £671 £706
London median daily rate £575 £575 £600
% change year-on-year - -4.17% -
Number of hourly rates quoted 0 1 1
Median hourly rate - £38.16 £52.97
Median % change year-on-year - -27.97% +9.04%
London median hourly rate £52.50 £37.17 £66.00
% change year-on-year +41.24% -43.68% +35.86%

JSON
Job Vacancy Trend in South London

Job postings citing JSON as a proportion of all IT jobs advertised in South London.

Job vacancy trend for JSON in South London

JSON
Contractor Daily Rate Trend in South London

3-month moving average daily rate quoted in jobs citing JSON in South London.

Daily rate trend 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 1 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
Croydon +6 5 £475 -6.86%
Bromley - 1 - -
JSON
London

JSON
Co-occurring Skills and Capabilities in South 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 1 (16.67%) Confluence
Cloud Services
1 5 (83.33%) AWS
1 5 (83.33%) Serverless
2 3 (50.00%) Amazon MSK
2 3 (50.00%) AWS Lambda
2 3 (50.00%) AWS Step Functions
3 2 (33.33%) Amazon EC2
3 2 (33.33%) Amazon ECS
3 2 (33.33%) Amazon EKS
Database & Business Intelligence
1 3 (50.00%) Amazon RDS
1 3 (50.00%) Amazon Redshift
1 3 (50.00%) DynamoDB
1 3 (50.00%) Parquet
2 2 (33.33%) PostgreSQL
2 2 (33.33%) RDBMS
2 2 (33.33%) Relational Database
Development Applications
1 3 (50.00%) Jenkins
1 3 (50.00%) JUnit
2 2 (33.33%) JMeter
2 2 (33.33%) Mockito
3 1 (16.67%) Bitbucket
3 1 (16.67%) Git
3 1 (16.67%) JIRA
3 1 (16.67%) NUnit
3 1 (16.67%) Subversion
3 1 (16.67%) Xcode
General
1 5 (83.33%) Public Sector
2 1 (16.67%) Banking
2 1 (16.67%) Finance
2 1 (16.67%) Investment Banking
Job Titles
1 3 (50.00%) Data Engineer
1 3 (50.00%) Developer
2 2 (33.33%) Java Developer
2 2 (33.33%) Senior
2 2 (33.33%) Senior Developer
2 2 (33.33%) Senior Java Developer
3 1 (16.67%) iOS Developer
Libraries, Frameworks & Software Standards
1 3 (50.00%) Apache Avro
1 3 (50.00%) Kafka
1 3 (50.00%) REST
2 2 (33.33%) ActiveMQ
2 2 (33.33%) Apache Camel
2 2 (33.33%) Hibernate
2 2 (33.33%) HTML
2 2 (33.33%) jQuery
2 2 (33.33%) Spring
2 2 (33.33%) Spring Boot
2 2 (33.33%) Web Services
2 2 (33.33%) WireMock
2 2 (33.33%) XML
3 1 (16.67%) AngularJS
3 1 (16.67%) SOAP
3 1 (16.67%) SwiftUI
Miscellaneous
1 2 (33.33%) Distributed Systems
2 1 (16.67%) Virtual Team
Operating Systems
1 2 (33.33%) Unix
2 1 (16.67%) Apple iOS
Processes & Methodologies
1 6 (100.00%) Agile
2 3 (50.00%) Business Analysis
2 3 (50.00%) Data Ingestion
2 3 (50.00%) Data Modelling
2 3 (50.00%) Data Pipeline
2 3 (50.00%) ETL
2 3 (50.00%) Predictive Modelling
3 2 (33.33%) BDD
3 2 (33.33%) CI/CD
3 2 (33.33%) Microservices
3 2 (33.33%) Process Management
3 2 (33.33%) SDLC
3 2 (33.33%) TDD
3 2 (33.33%) Workflow
4 1 (16.67%) Design Patterns
4 1 (16.67%) iOS Development
4 1 (16.67%) Scrum
Programming Languages
1 5 (83.33%) Python
2 4 (66.67%) JavaScript
3 3 (50.00%) SQL
4 2 (33.33%) Java
4 2 (33.33%) Lua
4 2 (33.33%) Perl
4 2 (33.33%) PHP
4 2 (33.33%) Shell Script
5 1 (16.67%) C#
5 1 (16.67%) Swift
Qualifications
1 3 (50.00%) SC Cleared
1 3 (50.00%) Security Cleared
System Software
1 2 (33.33%) Docker
Systems Management
1 2 (33.33%) Kibana
1 2 (33.33%) Kubernetes
Vendors
1 2 (33.33%) Dynatrace
1 2 (33.33%) Splunk