JSON Contract Job Trends in the South East

JSON
England > South East

The table below provides summary statistics and contractor rates for jobs advertised in the South East requiring JSON skills. It covers contract job vacancies from the 6 months leading up to 26 October 2025, with comparisons to the same periods in the previous two years.

6 months to
26 Oct 2025
Same period 2024 Same period 2023
Rank 137 152 153
Rank change year-on-year +15 +1 +13
Contract jobs citing JSON 33 29 58
As % of all contract jobs in the South East 0.90% 0.69% 1.05%
As % of the Libraries, Frameworks & Software Standards category 5.32% 4.21% 6.60%
Number of daily rates quoted 26 14 41
10th Percentile £456 £381 £363
25th Percentile £463 £500 £406
Median daily rate (50th Percentile) £475 £535 £533
Median % change year-on-year -11.21% +0.47% -3.18%
75th Percentile £534 £587 £588
90th Percentile £600 £658 £600
England median daily rate £513 £525 £535
% change year-on-year -2.29% -1.87% -2.73%
Number of hourly rates quoted 0 0 4
10th Percentile - - £60.13
25th Percentile - - £64.06
Median hourly rate - - £68.75
75th Percentile - - £70.00
90th Percentile - - -
England median hourly rate £37.50 £40.00 £70.00
% change year-on-year -6.25% -42.86% -6.67%

All Software Libraries and Frameworks
South East

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 the South East.

Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 620 689 879
As % of all contract IT jobs advertised in the South East 16.90% 16.35% 15.93%
Number of daily rates quoted 444 448 558
10th Percentile £280 £325 £313
25th Percentile £378 £409 £415
Median daily rate (50th Percentile) £475 £525 £525
Median % change year-on-year -9.52% - -4.55%
75th Percentile £575 £626 £625
90th Percentile £625 £671 £688
England median daily rate £510 £550 £550
% change year-on-year -7.27% - -4.35%
Number of hourly rates quoted 13 24 40
10th Percentile £17.06 £35.81 £50.00
25th Percentile £46.25 £60.58 £54.00
Median hourly rate £50.00 £66.25 £58.55
Median % change year-on-year -24.53% +13.16% -9.93%
75th Percentile £55.00 £70.00 £71.63
90th Percentile £73.00 - £78.00
England median hourly rate £54.85 £65.00 £55.50
% change year-on-year -15.62% +17.12% -14.62%

JSON
Job Vacancy Trend in the South East

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

JSON job vacancy trend in the South East

JSON
Daily Rate Trend in the South East

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

Contractor daily rate distribution trend for jobs in the South East citing JSON

JSON
Daily Rate Histogram in the South East

Daily rate distribution for jobs citing JSON in the South East over the 6 months to 26 October 2025.

Daily rate histogram for JSON in the South East

JSON
Hourly Rate Trend in the South East

Contractor hourly rate distribution trend for jobs in the South East citing JSON.

Contractor hourly rate distribution trend for jobs in the South East citing JSON

JSON
Contract Job Locations in the South East

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 East region over the 6 months to 26 October 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
Thames Valley +11 17 £500 -4.76% 18
Berkshire +5 12 £525 - 14
Surrey +7 11 £475 -12.84% 2
Buckinghamshire +4 4 £475 - 2
Hampshire +5 3 £600 -11.11% 8
West Sussex -5 2 £525 +16.67%
Oxfordshire -9 1 - - 3
JSON
England

JSON
Co-Occurring Skills & Capabilities in the South East 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 2 (6.06%) Appian
1 2 (6.06%) Microsoft Exchange
1 2 (6.06%) Tomcat
2 1 (3.03%) CMS
2 1 (3.03%) Confluence
2 1 (3.03%) Headless CMS
2 1 (3.03%) IIS
2 1 (3.03%) nginx
Business Applications
1 1 (3.03%) Maximo
1 1 (3.03%) Salesforce CRM
Cloud Services
1 6 (18.18%) Azure
2 5 (15.15%) GitHub
2 5 (15.15%) SaaS
3 4 (12.12%) Azure DevOps
3 4 (12.12%) Serverless
4 3 (9.09%) AWS
4 3 (9.09%) AWS Lambda
4 3 (9.09%) Salesforce Service Cloud
5 2 (6.06%) Amazon S3
5 2 (6.06%) AtomSphere
5 2 (6.06%) AWS Step Functions
5 2 (6.06%) Boomi
5 2 (6.06%) Figma
5 2 (6.06%) Nutanix
5 2 (6.06%) Salesforce Sales Cloud
5 2 (6.06%) Tricentis Tosca
6 1 (3.03%) Amazon EventBridge
6 1 (3.03%) Azure Logic Apps
6 1 (3.03%) Kontent
6 1 (3.03%) prismic.io
Communications & Networking
1 9 (27.27%) NFC
1 9 (27.27%) PPP
2 4 (12.12%) HTTP
3 2 (6.06%) Firewall
3 2 (6.06%) VPN
4 1 (3.03%) BGP
4 1 (3.03%) DNS
4 1 (3.03%) Ethernet VPN
4 1 (3.03%) MPLS
4 1 (3.03%) TCP/IP
Database & Business Intelligence
1 3 (9.09%) Relational Database
2 1 (3.03%) Amazon Athena
2 1 (3.03%) Amazon RDS
2 1 (3.03%) Amazon Redshift
2 1 (3.03%) Metadata
2 1 (3.03%) MongoDB
2 1 (3.03%) MySQL
2 1 (3.03%) NoSQL
2 1 (3.03%) SQL Server
Development Applications
1 10 (30.30%) Eclipse
2 9 (27.27%) Valgrind
3 5 (15.15%) Git
4 3 (9.09%) GitLab
4 3 (9.09%) JIRA
4 3 (9.09%) Selenium
4 3 (9.09%) Visual Studio Code
5 2 (6.06%) Bitbucket
5 2 (6.06%) Browser DevTools
5 2 (6.06%) Cucumber
5 2 (6.06%) Robot Framework
5 2 (6.06%) SonarQube
5 2 (6.06%) UI Automator
6 1 (3.03%) Gradle
6 1 (3.03%) Maven
6 1 (3.03%) Postman
6 1 (3.03%) SoapUI
6 1 (3.03%) SpecFlow
General
1 6 (18.18%) Social Skills
2 3 (9.09%) Finance
3 2 (6.06%) Analytical Skills
3 2 (6.06%) Documentation Skills
3 2 (6.06%) Telecoms
4 1 (3.03%) Digital Healthcare
4 1 (3.03%) Public Sector
Job Titles
1 13 (39.39%) Senior
2 12 (36.36%) Developer
3 9 (27.27%) C++ Software Engineer
3 9 (27.27%) Development Engineer
3 9 (27.27%) Linux Engineer
3 9 (27.27%) Senior C++ Software Engineer
3 9 (27.27%) Senior Development Engineer
3 9 (27.27%) Senior Linux Engineer
3 9 (27.27%) Senior Software Development Engineer
3 9 (27.27%) Senior Software Engineer
3 9 (27.27%) Software Development Engineer
3 9 (27.27%) Software Engineer
4 6 (18.18%) Applications Engineer
5 5 (15.15%) Salesforce Developer
6 3 (9.09%) Cloud Developer
7 2 (6.06%) AWS Engineer
7 2 (6.06%) Integration Developer
7 2 (6.06%) Nutanix Engineer
7 2 (6.06%) UI/UX Developer
7 2 (6.06%) UX Developer
Libraries, Frameworks & Software Standards
1 23 (69.70%) XML
2 18 (54.55%) REST
3 9 (27.27%) Web Services
4 7 (21.21%) HTML
4 7 (21.21%) SOAP
5 5 (15.15%) Lightning Web Components
6 4 (12.12%) jQuery
6 4 (12.12%) RESTful
7 3 (9.09%) Ajax
7 3 (9.09%) CSS
7 3 (9.09%) NETCONF
8 2 (6.06%) AngularJS
8 2 (6.06%) Jinja
8 2 (6.06%) React
8 2 (6.06%) Semantic HTML
8 2 (6.06%) Vue
8 2 (6.06%) YANG
9 1 (3.03%) OAuth2
9 1 (3.03%) Protocol Buffers
9 1 (3.03%) WebSockets
Miscellaneous
1 9 (27.27%) Smartcard
2 2 (6.06%) Hybrid Cloud
2 2 (6.06%) Product Ownership
3 1 (3.03%) Cloud Native
3 1 (3.03%) Data Protection Act
3 1 (3.03%) Virtual Team
Operating Systems
1 12 (36.36%) Linux
2 9 (27.27%) Ubuntu
3 3 (9.09%) Windows
4 2 (6.06%) Red Hat Enterprise Linux
5 1 (3.03%) CentOS
5 1 (3.03%) Mac OS
5 1 (3.03%) Unix
5 1 (3.03%) Windows Server
Processes & Methodologies
1 12 (36.36%) Agile
1 12 (36.36%) CI/CD
1 12 (36.36%) User Experience
2 11 (33.33%) Front End Development
3 10 (30.30%) Software Engineering
4 9 (27.27%) Cryptography
4 9 (27.27%) DevOps
4 9 (27.27%) Memory Management
4 9 (27.27%) Multithreaded Programming
4 9 (27.27%) Multithreading
4 9 (27.27%) Problem-Solving
5 3 (9.09%) AI
5 3 (9.09%) Case Management
5 3 (9.09%) Containerisation
5 3 (9.09%) Microservices
5 3 (9.09%) Validation
5 3 (9.09%) Workflow
6 2 (6.06%) Migration
6 2 (6.06%) OO
6 2 (6.06%) Scrum
Programming Languages
1 20 (60.61%) JavaScript
2 16 (48.48%) Python
3 15 (45.45%) Java
4 13 (39.39%) C#
5 10 (30.30%) C++
6 5 (15.15%) SQL
7 4 (12.12%) PowerShell
8 3 (9.09%) Apex Code
8 3 (9.09%) SOQL
9 2 (6.06%) Groovy
9 2 (6.06%) T-SQL
10 1 (3.03%) C
10 1 (3.03%) Jython
10 1 (3.03%) PL/SQL
Qualifications
1 3 (9.09%) Security Cleared
2 2 (6.06%) Degree
2 2 (6.06%) DV Cleared
3 1 (3.03%) A+ Certification
3 1 (3.03%) Computer Science Degree
3 1 (3.03%) Network+ Certification
3 1 (3.03%) SC Cleared
Quality Assurance & Compliance
1 2 (6.06%) Accessibility
1 2 (6.06%) WCAG
System Software
1 4 (12.12%) Docker
2 2 (6.06%) Virtual Machines
Systems Management
1 4 (12.12%) Ansible
2 2 (6.06%) Kubernetes
2 2 (6.06%) Terraform
3 1 (3.03%) Kibana
Vendors
1 7 (21.21%) Salesforce
2 4 (12.12%) Microsoft
2 4 (12.12%) Red Hat
3 3 (9.09%) Cisco
4 2 (6.06%) Citrix
4 2 (6.06%) Oracle
4 2 (6.06%) Veracode
4 2 (6.06%) VMware
5 1 (3.03%) IBM
5 1 (3.03%) Pega
5 1 (3.03%) ServiceNow
5 1 (3.03%) Splunk
5 1 (3.03%) UiPath