JSON Contracts

JSON
UK

The table below provides summary statistics for contract job vacancies 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 3 May 2025, comparing them to the same period in the previous two years.

6 months to
3 May 2025
Same period 2024 Same period 2023
Rank 252 225 196
Rank change year-on-year -27 -29 -24
Contract jobs citing JSON 301 452 791
As % of all contract jobs advertised in the UK 1.03% 1.04% 1.33%
As % of the Libraries, Frameworks & Software Standards category 4.51% 5.06% 5.73%
Number of daily rates quoted 236 315 554
10th Percentile £361 £403 £413
25th Percentile £447 £459 £463
Median daily rate (50th Percentile) £500 £538 £525
Median % change year-on-year -6.98% +2.38% -4.55%
75th Percentile £588 £600 £675
90th Percentile £667 £675 £804
UK excluding London median daily rate £475 £534 £500
% change year-on-year -11.05% +6.80% -
Number of hourly rates quoted 2 5 16
10th Percentile - - -
25th Percentile £91.25 £70.00 £70.00
Median hourly rate £92.50 £80.00 £72.50
Median % change year-on-year +15.63% +10.34% +60.61%
75th Percentile £93.75 £85.00 £75.00
90th Percentile - - -
UK excluding London median hourly rate - £80.00 £72.50
% change year-on-year - +10.34% +61.11%

All Software Libraries and Frameworks
UK

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.

Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 6,668 8,930 13,810
As % of all contract IT jobs advertised in the UK 22.76% 20.57% 23.26%
Number of daily rates quoted 4,572 6,198 10,066
10th Percentile £363 £338 £400
25th Percentile £425 £425 £463
Median daily rate (50th Percentile) £525 £530 £550
Median % change year-on-year -0.94% -3.64% -
75th Percentile £650 £650 £675
90th Percentile £787 £775 £775
UK excluding London median daily rate £490 £500 £500
% change year-on-year -2.00% - -
Number of hourly rates quoted 113 235 153
10th Percentile £27.18 £21.25 £31.60
25th Percentile £50.00 £40.00 £50.00
Median hourly rate £65.00 £46.18 £65.00
Median % change year-on-year +40.75% -28.95% +31.31%
75th Percentile £68.75 £65.00 £75.00
90th Percentile £82.79 £74.78 £80.25
UK excluding London median hourly rate £65.00 £47.50 £62.50
% change year-on-year +36.84% -24.00% +27.55%

JSON
Job Vacancy Trend

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

Job vacancy trend for JSON in the UK

JSON
Contractor Daily Rate Trend

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

Daily rate trend for JSON in the UK

JSON
Daily Rate Histogram

Daily rate distribution for jobs citing JSON over the 6 months to 3 May 2025.

Daily rate histogram for JSON in the UK

JSON
Contractor Hourly Rate Trend

3-month moving average hourly rates quoted in jobs citing JSON.

Hourly rate trend for JSON in the UK

JSON
Top 17 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing JSON within the UK over the 6 months to 3 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
England -45 222 £500 -7.02% 271
London -42 130 £535 -0.56% 126
UK excluding London +29 119 £475 -11.05% 173
Work from Home -28 97 £500 -7.41% 204
South East +43 41 £500 -2.44% 59
Scotland +15 27 £513 - 8
North of England -14 25 £447 -16.29% 36
North West +1 19 £447 -16.29% 20
Northern Ireland - 13 £408 - 4
Midlands +10 11 £563 -2.51% 16
West Midlands +7 7 £575 -1.08% 9
Yorkshire -2 5 £575 -7.78% 13
East of England +32 4 £300 -42.72% 30
East Midlands +12 4 £367 -36.40% 7
South West +11 1 £375 -31.82% 15
North East -14 1 £200 -59.23% 3
Wales - 1 - - 8

JSON
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 18 (5.98%) Confluence
2 17 (5.65%) Apache Spark
3 15 (4.98%) Apache
4 14 (4.65%) Anypoint
5 12 (3.99%) Mule
6 7 (2.33%) SharePoint
7 6 (1.99%) Jupyter
7 6 (1.99%) Oracle SOA Suite
7 6 (1.99%) WebSphere
8 5 (1.66%) Moodle
8 5 (1.66%) Mule ESB
9 3 (1.00%) CICS
9 3 (1.00%) WebLogic
10 2 (0.66%) Apache Solr
10 2 (0.66%) BizTalk Server
10 2 (0.66%) CMS
10 2 (0.66%) Oracle Workflow
11 1 (0.33%) IBM HTTP Server
11 1 (0.33%) nginx
11 1 (0.33%) WebLogic Portal
Applications
1 7 (2.33%) MS Visio
2 3 (1.00%) Microsoft Excel
2 3 (1.00%) Microsoft PowerPoint
3 1 (0.33%) MadCap Flare
3 1 (0.33%) Trello
Business Applications
1 12 (3.99%) Dynamics CRM
2 4 (1.33%) Oracle ERP
2 4 (1.33%) SAP S/4HANA
3 3 (1.00%) iTrent
4 2 (0.66%) Sparx Enterprise Architect
5 1 (0.33%) Actimize
5 1 (0.33%) BASE24
5 1 (0.33%) FastStats
Cloud Services
1 104 (34.55%) Azure
2 71 (23.59%) AWS
3 59 (19.60%) Serverless
4 44 (14.62%) Power Platform
5 36 (11.96%) Azure DevOps
6 33 (10.96%) GitHub
7 31 (10.30%) AWS Lambda
8 19 (6.31%) Power Automate
8 19 (6.31%) PowerApps
9 18 (5.98%) Dynamics 365
10 17 (5.65%) Azure Logic Apps
11 15 (4.98%) Amazon S3
11 15 (4.98%) Azure Monitor
11 15 (4.98%) GCP
12 11 (3.65%) Azure AKS
12 11 (3.65%) Azure Functions
13 8 (2.66%) Amazon Cognito
13 8 (2.66%) Azure Sentinel
13 8 (2.66%) Azure Synapse Analytics
13 8 (2.66%) GitHub Actions
Communications & Networking
1 22 (7.31%) HTTP
2 9 (2.99%) SMTP
2 9 (2.99%) SSH
2 9 (2.99%) SSL
3 7 (2.33%) VPN
4 6 (1.99%) BGP
4 6 (1.99%) POP3
5 4 (1.33%) DNS
5 4 (1.33%) Firewall
5 4 (1.33%) FTP
5 4 (1.33%) Modbus
5 4 (1.33%) MQTT
5 4 (1.33%) Network Security
5 4 (1.33%) WAN
5 4 (1.33%) Wireshark
6 3 (1.00%) LAN
6 3 (1.00%) MPLS
6 3 (1.00%) SMS
6 3 (1.00%) SNMP
6 3 (1.00%) TCP/IP
Database & Business Intelligence
1 40 (13.29%) NoSQL
2 36 (11.96%) Relational Database
3 34 (11.30%) SQL Server
4 29 (9.63%) PostgreSQL
5 28 (9.30%) MongoDB
6 21 (6.98%) Parquet
6 21 (6.98%) Power BI
7 20 (6.64%) MySQL
8 19 (6.31%) DynamoDB
9 16 (5.32%) Azure SQL Database
9 16 (5.32%) RDBMS
10 14 (4.65%) SQL Server Reporting Services
11 12 (3.99%) Data Lake
12 11 (3.65%) Delta Lake
13 10 (3.32%) Apache Hive
13 10 (3.32%) Oracle Reports
14 7 (2.33%) Amazon Athena
14 7 (2.33%) Big Data
14 7 (2.33%) Data Warehouse
14 7 (2.33%) Hadoop
Development Applications
1 65 (21.59%) Git
2 29 (9.63%) JIRA
3 20 (6.64%) GitLab
4 16 (5.32%) Jenkins
5 14 (4.65%) Postman
6 12 (3.99%) Selenium
7 8 (2.66%) JUnit
8 7 (2.33%) Visual Studio
9 6 (1.99%) Maven
9 6 (1.99%) RStudio
10 5 (1.66%) Cucumber
10 5 (1.66%) git-flow
10 5 (1.66%) NUnit
10 5 (1.66%) PHPUnit
10 5 (1.66%) Sonatype Nexus
11 4 (1.33%) JMeter
11 4 (1.33%) MSI
11 4 (1.33%) SoapUI
11 4 (1.33%) SonarQube
11 4 (1.33%) WebDriver
General
1 73 (24.25%) Social Skills
2 46 (15.28%) Finance
3 37 (12.29%) Banking
4 32 (10.63%) Public Sector
5 29 (9.63%) Analytical Skills
6 10 (3.32%) Telecoms
7 8 (2.66%) Documentation Skills
8 7 (2.33%) Front Office
8 7 (2.33%) Marketing
8 7 (2.33%) Presentation Skills
9 5 (1.66%) Billing
9 5 (1.66%) Inclusion and Diversity
9 5 (1.66%) Investment Banking
10 4 (1.33%) Financial Institution
11 3 (1.00%) Law
11 3 (1.00%) Retail Banking
12 2 (0.66%) General Ledger
12 2 (0.66%) Retail
12 2 (0.66%) Wholesale Banking
13 1 (0.33%) Corporate Banking
Job Titles
1 128 (42.52%) Developer
2 30 (9.97%) Senior
3 29 (9.63%) Architect
4 22 (7.31%) Senior Developer
5 21 (6.98%) Data Engineer
5 21 (6.98%) ServiceNow Developer
6 19 (6.31%) Java Developer
7 18 (5.98%) Lead
8 14 (4.65%) MuleSoft Developer
8 14 (4.65%) Software Engineer
9 13 (4.32%) Analyst
9 13 (4.32%) AWS Engineer
9 13 (4.32%) DBA
10 12 (3.99%) Solutions Architect
11 10 (3.32%) Azure Engineer
11 10 (3.32%) Full-Stack Developer
12 9 (2.99%) Lead Developer
12 9 (2.99%) PostgreSQL DBA
13 8 (2.66%) Administrator
13 8 (2.66%) Network Engineer
Libraries, Frameworks & Software Standards
1 151 (50.17%) XML
2 83 (27.57%) REST
3 64 (21.26%) SOAP
4 62 (20.60%) RESTful
5 61 (20.27%) Web Services
6 59 (19.60%) HTML
7 48 (15.95%) CSS
8 43 (14.29%) .NET
9 34 (11.30%) React
10 31 (10.30%) AngularJS
11 26 (8.64%) Kafka
12 23 (7.64%) OAuth
12 23 (7.64%) YAML
13 19 (6.31%) Node.js
14 18 (5.98%) Apache Avro
14 18 (5.98%) RAML
15 16 (5.32%) .NET Framework
15 16 (5.32%) HTML5 Canvas
16 15 (4.98%) Swagger
17 14 (4.65%) ASP.NET Web API
Miscellaneous
1 21 (6.98%) Product Ownership
2 20 (6.64%) Data Structures
3 12 (3.99%) Enterprise Software
4 11 (3.65%) Onboarding
5 10 (3.32%) Distributed Systems
5 10 (3.32%) Linux Command Line
5 10 (3.32%) Reference Data
6 9 (2.99%) Cloud Native
7 8 (2.66%) Derivative
8 7 (2.33%) Equities
8 7 (2.33%) Equity Derivative
8 7 (2.33%) Greenfield Project
9 6 (1.99%) CSOC
10 5 (1.66%) Cyber Threat
10 5 (1.66%) e-Learning
10 5 (1.66%) Frameworx
10 5 (1.66%) Management Information System
10 5 (1.66%) Replication
10 5 (1.66%) TM Forum
10 5 (1.66%) VLE
Operating Systems
1 17 (5.65%) Linux
2 12 (3.99%) Unix
3 9 (2.99%) Android
4 5 (1.66%) Apple iOS
5 3 (1.00%) Windows
6 2 (0.66%) CentOS
7 1 (0.33%) AIX
7 1 (0.33%) Red Hat Enterprise Linux
7 1 (0.33%) Windows Server
7 1 (0.33%) zOS
Processes & Methodologies
1 119 (39.53%) Agile
2 81 (26.91%) DevOps
3 79 (26.25%) CI/CD
4 68 (22.59%) Problem-Solving
5 41 (13.62%) Scrum
6 38 (12.62%) Microservices
7 34 (11.30%) Software Engineering
8 33 (10.96%) Test Automation
9 31 (10.30%) API Management
9 31 (10.30%) Mentoring
10 29 (9.63%) Data Modelling
11 27 (8.97%) User Experience
12 26 (8.64%) Infrastructure as Code
13 23 (7.64%) API Development
13 23 (7.64%) Continuous Integration
14 21 (6.98%) Clean Code
14 21 (6.98%) ETL
14 21 (6.98%) ITSM
15 20 (6.64%) Analytics
16 19 (6.31%) Migration
Programming Languages
1 108 (35.88%) SQL
2 99 (32.89%) JavaScript
3 77 (25.58%) Python
4 60 (19.93%) Java
5 42 (13.95%) C#
6 27 (8.97%) TypeScript
7 26 (8.64%) PowerShell
8 17 (5.65%) Bash
9 15 (4.98%) Scala
10 12 (3.99%) Bicep
11 11 (3.65%) DataWeave
12 10 (3.32%) Kusto Query Language
13 8 (2.66%) Shell Script
13 8 (2.66%) T-SQL
14 7 (2.33%) Kotlin
14 7 (2.33%) PHP
14 7 (2.33%) Ruby
15 6 (1.99%) Perl
16 5 (1.66%) XPath
17 4 (1.33%) ABAP
Qualifications
1 44 (14.62%) Security Cleared
2 38 (12.62%) SC Cleared
3 20 (6.64%) Degree
4 7 (2.33%) AWS Certification
5 6 (1.99%) GIAC
6 5 (1.66%) SANS
7 4 (1.33%) Computer Science Degree
8 2 (0.66%) Azure Certification
8 2 (0.66%) BPSS Clearance
8 2 (0.66%) OCP
8 2 (0.66%) Oracle Certification
8 2 (0.66%) Sun Certification
9 1 (0.33%) CCNP
9 1 (0.33%) Cisco Certification
9 1 (0.33%) DV Cleared
9 1 (0.33%) JNCIP
9 1 (0.33%) Master's Degree
9 1 (0.33%) Microsoft Certification
Quality Assurance & Compliance
1 20 (6.64%) QA
2 12 (3.99%) Data Quality
3 9 (2.99%) GDPR
4 4 (1.33%) Accessibility
4 4 (1.33%) GRC
4 4 (1.33%) SLA
5 3 (1.00%) Disclosure Scotland
5 3 (1.00%) WCAG
6 2 (0.66%) DICOM
6 2 (0.66%) HL7
6 2 (0.66%) ISO/IEC 20000
6 2 (0.66%) SEPA
7 1 (0.33%) EMIR
7 1 (0.33%) ISO 8583
7 1 (0.33%) MiFID
7 1 (0.33%) PSD2
System Software
1 41 (13.62%) Docker
2 15 (4.98%) Active Directory
3 3 (1.00%) FreeRADIUS
3 3 (1.00%) iptables
4 2 (0.66%) HDFS
5 1 (0.33%) LXC
5 1 (0.33%) XYGATE
Systems Management
1 33 (10.96%) Kubernetes
2 14 (4.65%) Grafana
3 13 (4.32%) Single Sign-On
3 13 (4.32%) Terraform
4 9 (2.99%) Ansible
5 8 (2.66%) Prometheus
6 7 (2.33%) CloudHub
7 4 (1.33%) Nagios
8 3 (1.00%) Cacti
8 3 (1.00%) Netcool
8 3 (1.00%) Progress Chef
8 3 (1.00%) Proxmox
8 3 (1.00%) Puppet
8 3 (1.00%) ZABBIX
9 2 (0.66%) Kibana
10 1 (0.33%) Apache Ranger
10 1 (0.33%) Graylog
10 1 (0.33%) Istio
10 1 (0.33%) logstash
10 1 (0.33%) Oracle Identity Management
Vendors
1 45 (14.95%) Microsoft
2 44 (14.62%) Oracle
3 42 (13.95%) ServiceNow
4 20 (6.64%) MuleSoft
5 17 (5.65%) Salesforce
6 16 (5.32%) Databricks
7 12 (3.99%) SAP
8 9 (2.99%) Cisco
9 7 (2.33%) Splunk
10 5 (1.66%) Google
10 5 (1.66%) IBM
11 4 (1.33%) Dynatrace
11 4 (1.33%) LabVantage
11 4 (1.33%) OpenText
11 4 (1.33%) Palo Alto
11 4 (1.33%) Qualtrics
11 4 (1.33%) TIBCO
12 3 (1.00%) F5
12 3 (1.00%) Veracode
12 3 (1.00%) VMware