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 30 April 2025, comparing them to the same period in the previous two years.

6 months to
30 Apr 2025
Same period 2024 Same period 2023
Rank 261 231 198
Rank change year-on-year -30 -33 -25
Contract jobs citing JSON 295 455 791
As % of all contract jobs advertised in the UK 1.01% 1.04% 1.33%
As % of the Libraries, Frameworks & Software Standards category 4.45% 5.08% 5.69%
Number of daily rates quoted 233 318 557
10th Percentile £363 £404 £413
25th Percentile £448 £463 £463
Median daily rate (50th Percentile) £500 £538 £525
Median % change year-on-year -6.98% +2.38% -4.55%
75th Percentile £594 £600 £675
90th Percentile £669 £675 £800
UK excluding London median daily rate £492 £534 £500
% change year-on-year -7.87% +6.80% -0.05%
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 6,629 8,962 13,891
As % of all contract IT jobs advertised in the UK 22.67% 20.56% 23.27%
Number of daily rates quoted 4,551 6,219 10,140
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 £780 £769 £775
UK excluding London median daily rate £490 £500 £500
% change year-on-year -2.00% - -
Number of hourly rates quoted 112 231 153
10th Percentile £27.14 £21.25 £31.60
25th Percentile £48.25 £40.00 £48.50
Median hourly rate £65.00 £46.18 £65.00
Median % change year-on-year +40.75% -28.95% +32.65%
75th Percentile £68.75 £65.00 £75.00
90th Percentile £82.87 £75.00 £80.25
UK excluding London median hourly rate £65.00 £47.50 £64.00
% change year-on-year +36.84% -25.78% +30.61%

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 30 April 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 16 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 30 April 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 -57 216 £513 -4.65% 248
London -50 127 £540 +0.14% 100
UK excluding London +21 117 £492 -7.87% 169
Work from Home -24 98 £500 -7.41% 197
South East +48 39 £500 -2.44% 40
Scotland +14 28 £500 -2.44% 13
North of England 0 23 £447 -16.29% 49
North West -1 17 £447 -16.29% 31
Northern Ireland - 13 £408 - 4
Midlands +15 10 £563 -2.51% 16
West Midlands +10 7 £575 -1.08% 8
Yorkshire +6 6 £615 -1.36% 16
East of England +28 4 £300 -42.58% 25
East Midlands +7 3 £367 -36.40% 8
South West +25 1 £375 -30.23% 14
Wales - 1 - - 11

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 (6.10%) Confluence
2 17 (5.76%) Apache Spark
3 15 (5.08%) Apache
4 14 (4.75%) Anypoint
5 12 (4.07%) Mule
6 7 (2.37%) SharePoint
7 6 (2.03%) Jupyter
7 6 (2.03%) Oracle SOA Suite
7 6 (2.03%) WebSphere
8 5 (1.69%) Moodle
8 5 (1.69%) Mule ESB
9 3 (1.02%) CICS
9 3 (1.02%) WebLogic
10 2 (0.68%) Apache Solr
10 2 (0.68%) BizTalk Server
10 2 (0.68%) Oracle Workflow
11 1 (0.34%) CMS
11 1 (0.34%) IIS
11 1 (0.34%) nginx
11 1 (0.34%) WebLogic Portal
Applications
1 7 (2.37%) MS Visio
2 3 (1.02%) Microsoft Excel
2 3 (1.02%) Microsoft PowerPoint
3 1 (0.34%) Trello
Business Applications
1 12 (4.07%) Dynamics CRM
2 4 (1.36%) Oracle ERP
2 4 (1.36%) SAP S/4HANA
3 3 (1.02%) iTrent
4 2 (0.68%) Sparx Enterprise Architect
5 1 (0.34%) Actimize
5 1 (0.34%) BASE24
5 1 (0.34%) FastStats
Cloud Services
1 99 (33.56%) Azure
2 70 (23.73%) AWS
3 60 (20.34%) Serverless
4 43 (14.58%) Power Platform
5 34 (11.53%) Azure DevOps
6 33 (11.19%) GitHub
7 32 (10.85%) AWS Lambda
8 19 (6.44%) Power Automate
8 19 (6.44%) PowerApps
9 18 (6.10%) Dynamics 365
10 17 (5.76%) Azure Logic Apps
11 16 (5.42%) Amazon S3
12 15 (5.08%) Azure Monitor
13 14 (4.75%) GCP
14 11 (3.73%) Azure AKS
14 11 (3.73%) Azure Functions
15 9 (3.05%) Amazon Cognito
16 8 (2.71%) Amazon CloudWatch
16 8 (2.71%) Azure Sentinel
16 8 (2.71%) Azure Synapse Analytics
Communications & Networking
1 20 (6.78%) HTTP
2 9 (3.05%) SMTP
2 9 (3.05%) SSH
2 9 (3.05%) SSL
3 7 (2.37%) VPN
4 6 (2.03%) BGP
4 6 (2.03%) POP3
5 4 (1.36%) DNS
5 4 (1.36%) Firewall
5 4 (1.36%) FTP
5 4 (1.36%) Modbus
5 4 (1.36%) MQTT
5 4 (1.36%) Network Security
5 4 (1.36%) WAN
5 4 (1.36%) Wireshark
6 3 (1.02%) Cisco ASA
6 3 (1.02%) Cisco Nexus
6 3 (1.02%) Remote Desktop
6 3 (1.02%) SNMP
6 3 (1.02%) Telnet
Database & Business Intelligence
1 41 (13.90%) NoSQL
2 35 (11.86%) Relational Database
3 33 (11.19%) SQL Server
4 29 (9.83%) PostgreSQL
5 28 (9.49%) MongoDB
6 22 (7.46%) Parquet
7 20 (6.78%) DynamoDB
7 20 (6.78%) MySQL
7 20 (6.78%) Power BI
8 16 (5.42%) Azure SQL Database
8 16 (5.42%) RDBMS
9 15 (5.08%) SQL Server Reporting Services
10 12 (4.07%) Data Lake
11 11 (3.73%) Delta Lake
12 10 (3.39%) Apache Hive
12 10 (3.39%) Oracle Reports
13 8 (2.71%) Amazon Athena
14 7 (2.37%) Big Data
14 7 (2.37%) Data Warehouse
14 7 (2.37%) Hadoop
Development Applications
1 63 (21.36%) Git
2 29 (9.83%) JIRA
3 20 (6.78%) GitLab
4 17 (5.76%) Jenkins
5 15 (5.08%) Postman
6 11 (3.73%) Selenium
7 8 (2.71%) JUnit
8 6 (2.03%) Cucumber
8 6 (2.03%) Maven
8 6 (2.03%) NUnit
8 6 (2.03%) RStudio
8 6 (2.03%) Sonatype Nexus
8 6 (2.03%) Visual Studio
9 5 (1.69%) git-flow
9 5 (1.69%) PHPUnit
9 5 (1.69%) SonarQube
10 4 (1.36%) Bitbucket
10 4 (1.36%) JMeter
10 4 (1.36%) MSI
10 4 (1.36%) SoapUI
General
1 68 (23.05%) Social Skills
2 47 (15.93%) Finance
3 37 (12.54%) Banking
4 32 (10.85%) Public Sector
5 29 (9.83%) Analytical Skills
6 10 (3.39%) Telecoms
7 8 (2.71%) Documentation Skills
8 7 (2.37%) Front Office
8 7 (2.37%) Marketing
8 7 (2.37%) Presentation Skills
9 5 (1.69%) Billing
9 5 (1.69%) Inclusion and Diversity
9 5 (1.69%) Investment Banking
10 4 (1.36%) Financial Institution
11 3 (1.02%) Law
11 3 (1.02%) Retail Banking
12 2 (0.68%) General Ledger
12 2 (0.68%) Retail
12 2 (0.68%) Wholesale Banking
13 1 (0.34%) Legal
Job Titles
1 124 (42.03%) Developer
2 32 (10.85%) Senior
3 29 (9.83%) Architect
4 23 (7.80%) Senior Developer
5 21 (7.12%) Data Engineer
5 21 (7.12%) ServiceNow Developer
6 19 (6.44%) Java Developer
7 17 (5.76%) Lead
8 14 (4.75%) MuleSoft Developer
8 14 (4.75%) Software Engineer
9 13 (4.41%) AWS Engineer
9 13 (4.41%) DBA
10 12 (4.07%) Analyst
10 12 (4.07%) Solutions Architect
11 10 (3.39%) Azure Engineer
11 10 (3.39%) Full-Stack Developer
12 9 (3.05%) Lead Developer
12 9 (3.05%) PostgreSQL DBA
13 8 (2.71%) Administrator
13 8 (2.71%) Network Engineer
Libraries, Frameworks & Software Standards
1 143 (48.47%) XML
2 80 (27.12%) REST
3 62 (21.02%) RESTful
4 61 (20.68%) SOAP
4 61 (20.68%) Web Services
5 55 (18.64%) HTML
6 46 (15.59%) CSS
7 43 (14.58%) .NET
8 30 (10.17%) AngularJS
8 30 (10.17%) React
9 25 (8.47%) Kafka
10 24 (8.14%) YAML
11 23 (7.80%) OAuth
12 18 (6.10%) Apache Avro
12 18 (6.10%) RAML
13 17 (5.76%) .NET Framework
13 17 (5.76%) Node.js
14 16 (5.42%) HTML5 Canvas
15 15 (5.08%) ASP.NET Web API
16 14 (4.75%) Swagger
Miscellaneous
1 21 (7.12%) Product Ownership
2 20 (6.78%) Data Structures
3 12 (4.07%) Enterprise Software
4 11 (3.73%) Onboarding
5 10 (3.39%) Distributed Systems
5 10 (3.39%) Linux Command Line
5 10 (3.39%) Reference Data
6 9 (3.05%) Cloud Native
7 8 (2.71%) Derivative
8 7 (2.37%) Equities
8 7 (2.37%) Equity Derivative
8 7 (2.37%) Greenfield Project
9 6 (2.03%) CSOC
10 5 (1.69%) Cyber Threat
10 5 (1.69%) e-Learning
10 5 (1.69%) Management Information System
10 5 (1.69%) Mobile App
10 5 (1.69%) Replication
10 5 (1.69%) TM Forum
10 5 (1.69%) VLE
Operating Systems
1 17 (5.76%) Linux
2 11 (3.73%) Unix
3 9 (3.05%) Android
4 5 (1.69%) Apple iOS
5 3 (1.02%) Windows
6 2 (0.68%) CentOS
7 1 (0.34%) Red Hat Enterprise Linux
7 1 (0.34%) VMS
7 1 (0.34%) Windows Server
7 1 (0.34%) zOS
Processes & Methodologies
1 116 (39.32%) Agile
2 81 (27.46%) DevOps
3 79 (26.78%) CI/CD
4 66 (22.37%) Problem-Solving
5 40 (13.56%) Scrum
6 37 (12.54%) Microservices
7 34 (11.53%) Software Engineering
8 31 (10.51%) Mentoring
8 31 (10.51%) Test Automation
9 29 (9.83%) API Management
9 29 (9.83%) Data Modelling
10 27 (9.15%) Infrastructure as Code
11 25 (8.47%) User Experience
12 24 (8.14%) API Development
13 23 (7.80%) Continuous Integration
14 21 (7.12%) Clean Code
14 21 (7.12%) ITSM
15 20 (6.78%) Analytics
15 20 (6.78%) ETL
16 19 (6.44%) Full-Stack Development
Programming Languages
1 109 (36.95%) SQL
2 97 (32.88%) JavaScript
3 78 (26.44%) Python
4 59 (20.00%) Java
5 41 (13.90%) C#
6 26 (8.81%) TypeScript
7 25 (8.47%) PowerShell
8 17 (5.76%) Bash
9 15 (5.08%) Scala
10 12 (4.07%) Bicep
11 11 (3.73%) DataWeave
12 10 (3.39%) Kusto Query Language
13 8 (2.71%) PHP
13 8 (2.71%) Shell Script
13 8 (2.71%) T-SQL
14 7 (2.37%) Kotlin
14 7 (2.37%) Ruby
15 6 (2.03%) Perl
16 5 (1.69%) XPath
17 3 (1.02%) COBOL
Qualifications
1 44 (14.92%) Security Cleared
2 38 (12.88%) SC Cleared
3 20 (6.78%) Degree
4 8 (2.71%) AWS Certification
5 6 (2.03%) GIAC
6 5 (1.69%) SANS
7 4 (1.36%) Computer Science Degree
8 2 (0.68%) Azure Certification
8 2 (0.68%) BPSS Clearance
8 2 (0.68%) OCP
8 2 (0.68%) Oracle Certification
8 2 (0.68%) Sun Certification
9 1 (0.34%) CCNP
9 1 (0.34%) Cisco Certification
9 1 (0.34%) DV Cleared
9 1 (0.34%) JNCIP
9 1 (0.34%) Master's Degree
9 1 (0.34%) Microsoft Certification
Quality Assurance & Compliance
1 19 (6.44%) QA
2 11 (3.73%) Data Quality
3 9 (3.05%) GDPR
4 4 (1.36%) GRC
4 4 (1.36%) SLA
5 3 (1.02%) Disclosure Scotland
5 3 (1.02%) SEPA
6 2 (0.68%) Accessibility
6 2 (0.68%) DICOM
6 2 (0.68%) HL7
6 2 (0.68%) ISO/IEC 20000
7 1 (0.34%) ISO 8583
7 1 (0.34%) PSD2
7 1 (0.34%) WCAG
System Software
1 41 (13.90%) Docker
2 15 (5.08%) Active Directory
3 3 (1.02%) FreeRADIUS
3 3 (1.02%) iptables
4 2 (0.68%) HDFS
5 1 (0.34%) LXC
5 1 (0.34%) VirtualBox
5 1 (0.34%) VMware Infrastructure
5 1 (0.34%) XYGATE
Systems Management
1 33 (11.19%) Kubernetes
2 14 (4.75%) Grafana
2 14 (4.75%) Terraform
3 13 (4.41%) Single Sign-On
4 10 (3.39%) Ansible
5 8 (2.71%) Prometheus
6 7 (2.37%) CloudHub
7 4 (1.36%) Nagios
7 4 (1.36%) Puppet
8 3 (1.02%) Cacti
8 3 (1.02%) Netcool
8 3 (1.02%) Progress Chef
8 3 (1.02%) Proxmox
8 3 (1.02%) ZABBIX
9 2 (0.68%) Kibana
10 1 (0.34%) Apache Ranger
10 1 (0.34%) Graylog
10 1 (0.34%) Istio
10 1 (0.34%) logstash
10 1 (0.34%) Tivoli
Vendors
1 44 (14.92%) Microsoft
1 44 (14.92%) Oracle
2 42 (14.24%) ServiceNow
3 20 (6.78%) MuleSoft
4 16 (5.42%) Databricks
5 15 (5.08%) Salesforce
6 10 (3.39%) SAP
7 9 (3.05%) Cisco
8 7 (2.37%) Splunk
9 5 (1.69%) Google
10 4 (1.36%) IBM
10 4 (1.36%) LabVantage
10 4 (1.36%) OpenText
10 4 (1.36%) Palo Alto
10 4 (1.36%) Qualtrics
10 4 (1.36%) TIBCO
10 4 (1.36%) VMware
11 3 (1.02%) Dynatrace
11 3 (1.02%) Nokia
11 3 (1.02%) Veracode