Period
to

The following table provides summary statistics for contract job vacancies with a requirement for JSON skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited JSON over the 6 months to 1 July 2022 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

JSON
UK
6 months to
1 Jul 2022
Same period 2021 Same period 2020
Rank 164 141 150
Rank change year-on-year -23 +9 -45
Contract jobs citing JSON 1,515 1,267 754
As % of all contract jobs advertised in the UK 1.70% 1.93% 1.83%
As % of the Libraries, Frameworks & Software Standards category 6.31% 6.32% 6.00%
Number of daily rates quoted 974 854 473
10th Percentile £413 £350 £346
25th Percentile £463 £413 £408
Median daily rate (50th Percentile) £550 £497 £490
Median % change year-on-year +10.78% +1.33% -1.01%
75th Percentile £655 £575 £563
90th Percentile £750 £688 £615
UK excluding London median daily rate £525 £436 £475
% change year-on-year +20.41% -8.21% +2.70%
Number of hourly rates quoted 34 30 8
10th Percentile - £25.95 £42.63
25th Percentile £14.25 £50.79 £47.88
Median hourly rate £48.75 £63.00 £55.50
Median % change year-on-year -22.62% +13.51% -7.50%
75th Percentile £75.00 £65.89 £68.75
90th Percentile £77.50 £72.67 £69.13
UK excluding London median hourly rate £47.50 £59.00 £58.00
% change year-on-year -19.49% +1.72% +5.45%

JSON is in the Software Libraries and Frameworks category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
UK
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 23,996 20,055 12,574
As % of all contract IT jobs advertised in the UK 26.97% 30.48% 30.57%
Number of daily rates quoted 17,613 14,283 8,899
10th Percentile £400 £350 £333
25th Percentile £463 £413 £413
Median daily rate (50th Percentile) £550 £500 £500
Median % change year-on-year +10.00% - +2.56%
75th Percentile £671 £600 £588
90th Percentile £763 £688 £675
UK excluding London median daily rate £504 £450 £450
% change year-on-year +11.89% - -
Number of hourly rates quoted 231 195 112
10th Percentile £20.25 £20.01 £20.16
25th Percentile £35.00 £29.00 £31.11
Median hourly rate £52.50 £45.00 £45.50
Median % change year-on-year +16.67% -1.10% +1.21%
75th Percentile £65.75 £57.50 £57.50
90th Percentile £75.39 £66.30 £66.00
UK excluding London median hourly rate £55.00 £41.25 £45.00
% change year-on-year +33.33% -8.33% +2.48%

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 1 July 2022.

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
Hourly Rate Histogram

Hourly rate distribution of jobs citing JSON over the 6 months to 1 July 2022.

Hourly rate histogram 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 1 July 2022. 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 -35 1,189 £550 +10.78% 261
Work from Home -15 769 £550 +11.11% 104
London -36 632 £600 +20.00% 111
UK excluding London -23 510 £525 +20.41% 160
South East -31 136 £525 +16.67% 35
Midlands -6 115 £525 +23.53% 39
North of England -49 112 £500 +16.96% 30
West Midlands -7 103 £521 +22.59% 26
Scotland 0 67 £520 +20.93% 5
North West -30 63 £513 +20.59% 14
Yorkshire -31 42 £500 +16.96% 11
East of England -31 38 £577 +16.57% 23
South West -35 28 £575 +35.29% 17
East Midlands -4 11 £525 +23.53% 13
Northern Ireland +1 9 £500 +3.63%
Wales 0 9 £581 +66.07% 11
North East -18 7 £388 -25.30% 5

For the 6 months to 1 July 2022, IT contractor jobs citing JSON also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads with a requirement for JSON.

1 693 (45.74%) Agile
2 635 (41.91%) XML
3 579 (38.22%) REST
4 564 (37.23%) Java
5 552 (36.44%) SQL
6 485 (32.01%) JavaScript
7 467 (30.83%) DevOps
8 457 (30.17%) Git (software)
9 439 (28.98%) Jenkins
10 364 (24.03%) Social Skills
11 360 (23.76%) CI/CD
12 354 (23.37%) HTML
13 350 (23.10%) Azure
14 340 (22.44%) Microservices
15 337 (22.24%) Web Services
16 331 (21.85%) AWS
17 313 (20.66%) CSS
18 305 (20.13%) Oracle
18 305 (20.13%) Python
19 303 (20.00%) SOAP
19 303 (20.00%) Scrum
20 293 (19.34%) JIRA
21 276 (18.22%) Finance
22 275 (18.15%) Test Automation
23 266 (17.56%) Spring
24 257 (16.96%) Linux
25 246 (16.24%) RESTful
26 223 (14.72%) React
27 221 (14.59%) Security Cleared
28 217 (14.32%) TDD

JSON
Co-occurring IT Skills by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 191 (12.61%) Confluence
2 50 (3.30%) CMS
3 40 (2.64%) Apache
3 40 (2.64%) Tomcat
4 35 (2.31%) WebLogic
5 32 (2.11%) IIS
6 29 (1.91%) Cloud Foundry
6 29 (1.91%) Mule
7 25 (1.65%) Oracle SOA Suite
7 25 (1.65%) WebSphere
8 21 (1.39%) Sitecore CMS
9 20 (1.32%) nginx
10 16 (1.06%) Adobe Experience Manager
10 16 (1.06%) SharePoint
11 14 (0.92%) Umbraco
12 12 (0.79%) Apache Spark
13 11 (0.73%) Apache Airflow
14 9 (0.59%) Apache Solr
15 8 (0.53%) JBoss
15 8 (0.53%) Jetty
Applications
1 35 (2.31%) Microsoft Excel
2 10 (0.66%) MS Visio
3 9 (0.59%) Microsoft Office
4 6 (0.40%) Chatbot
5 5 (0.33%) Sketch
6 3 (0.20%) Microsoft Project
7 2 (0.13%) Microsoft PowerPoint
8 1 (0.066%) Adobe Illustrator
8 1 (0.066%) Adobe XD
8 1 (0.066%) Photoshop
Business Applications
1 33 (2.18%) Oracle ERP
2 17 (1.12%) NetSuite
2 17 (1.12%) SAP FI-CA
2 17 (1.12%) SAP PSCD
3 12 (0.79%) Dynamics CRM
4 11 (0.73%) Shopify
5 7 (0.46%) Oracle Applications
5 7 (0.46%) Payment Gateway
6 6 (0.40%) Sparx Enterprise Architect
7 5 (0.33%) Oracle EBS
7 5 (0.33%) SAP Hybris
7 5 (0.33%) SunGard Martini
8 2 (0.13%) assyst
8 2 (0.13%) BondVision
8 2 (0.13%) Dynamics AX
8 2 (0.13%) Dynamics NAV
8 2 (0.13%) Magento
8 2 (0.13%) WebTrends
9 1 (0.066%) Oracle Procure-to-Pay
9 1 (0.066%) Salesforce.com CRM
Cloud Services
1 350 (23.10%) Azure
2 331 (21.85%) AWS
3 186 (12.28%) GitHub
4 128 (8.45%) PaaS
5 121 (7.99%) Azure DevOps
6 104 (6.86%) Serverless
7 92 (6.07%) SaaS
8 83 (5.48%) Power Platform
9 82 (5.41%) AWS Lambda
10 64 (4.22%) Amazon S3
11 62 (4.09%) GCP
12 58 (3.83%) IaaS
13 53 (3.50%) AWS CloudFormation
14 41 (2.71%) OpenShift
15 40 (2.64%) npm
16 37 (2.44%) Amazon ECS
17 36 (2.38%) Amazon EC2
18 33 (2.18%) Apigee
18 33 (2.18%) Azure Data Factory
19 31 (2.05%) AWS CodePipeline
Communications & Networking
1 122 (8.05%) HTTP
2 58 (3.83%) Firewall
3 44 (2.90%) TCP/IP
4 35 (2.31%) DNS
5 22 (1.45%) MPLS
6 20 (1.32%) FTP
7 19 (1.25%) Internet
7 19 (1.25%) Network Security
8 17 (1.12%) LAN
9 16 (1.06%) BGP
9 16 (1.06%) VPN
9 16 (1.06%) WAN
10 15 (0.99%) SSL
11 13 (0.86%) HTTPS
12 12 (0.79%) Ethernet
13 11 (0.73%) F5 BIG-IP GTM
13 11 (0.73%) F5 BIG-IP LTM
13 11 (0.73%) MQTT
14 10 (0.66%) Ethernet VPN
14 10 (0.66%) Intrusion Detection
Database & Business Intelligence
1 190 (12.54%) SQL Server
2 166 (10.96%) Relational Database
3 140 (9.24%) MongoDB
4 127 (8.38%) NoSQL
5 98 (6.47%) PostgreSQL
6 97 (6.40%) Oracle Database
7 74 (4.88%) MySQL
8 64 (4.22%) Power BI
9 48 (3.17%) Amazon RDS
10 47 (3.10%) Oracle Database 12c
11 38 (2.51%) DynamoDB
12 37 (2.44%) Elasticsearch
13 36 (2.38%) RDBMS
14 35 (2.31%) Data Warehouse
15 33 (2.18%) Azure SQL Database
16 25 (1.65%) DB2
16 25 (1.65%) Redis
17 24 (1.58%) Data Lake
18 23 (1.52%) BusinessObjects
18 23 (1.52%) SQL Server Integration Services
Development Applications
1 457 (30.17%) Git (software)
2 439 (28.98%) Jenkins
3 293 (19.34%) JIRA
4 149 (9.83%) Maven
5 135 (8.91%) JUnit
6 111 (7.33%) Postman
6 111 (7.33%) Selenium
7 93 (6.14%) Bitbucket
8 90 (5.94%) GitLab
9 88 (5.81%) SoapUI
10 82 (5.41%) Cucumber
11 73 (4.82%) Visual Studio
12 57 (3.76%) Artifactory
13 52 (3.43%) Subversion
14 49 (3.23%) SonarQube
15 45 (2.97%) Mockito
16 44 (2.90%) Sonatype Nexus
17 43 (2.84%) JMeter
18 39 (2.57%) Eclipse
18 39 (2.57%) TeamCity
General
1 364 (24.03%) Social Skills
2 276 (18.22%) Finance
3 148 (9.77%) Banking
4 144 (9.50%) Public Sector
5 125 (8.25%) Analytical Skills
6 38 (2.51%) Investment Banking
7 33 (2.18%) Back Office
8 31 (2.05%) Marketing
9 26 (1.72%) Retail
9 26 (1.72%) Telecoms
10 22 (1.45%) Influencing Skills
11 21 (1.39%) Legal
11 21 (1.39%) Military
11 21 (1.39%) Police
12 19 (1.25%) Front Office
12 19 (1.25%) Presentation Skills
13 17 (1.12%) Documentation Skills
14 16 (1.06%) Billing
15 15 (0.99%) Games
16 14 (0.92%) Manufacturing
Job Titles
1 719 (47.46%) Developer
2 194 (12.81%) Java Developer
3 140 (9.24%) Architect
4 109 (7.19%) Senior Developer
5 108 (7.13%) Analyst
6 75 (4.95%) DevOps Engineer
7 63 (4.16%) Solutions Architect
8 57 (3.76%) Full Stack Developer
9 49 (3.23%) Senior Java Developer
10 48 (3.17%) Azure Engineer
10 48 (3.17%) Consultant
11 47 (3.10%) C# Developer
11 47 (3.10%) Front End Developer (Client-Side Developer)
12 46 (3.04%) Software Engineer
13 45 (2.97%) Data Engineer
14 43 (2.84%) AWS Engineer
14 43 (2.84%) React Developer
15 42 (2.77%) .NET Developer
16 39 (2.57%) C++ Developer
17 35 (2.31%) Test Analyst
Libraries, Frameworks & Software Standards
1 635 (41.91%) XML
2 579 (38.22%) REST
3 354 (23.37%) HTML
4 337 (22.24%) Web Services
5 313 (20.66%) CSS
6 303 (20.00%) SOAP
7 266 (17.56%) Spring
8 246 (16.24%) RESTful
9 223 (14.72%) React
10 208 (13.73%) .NET
11 198 (13.07%) Spring Boot
12 146 (9.64%) Node.js
13 137 (9.04%) AngularJS
14 102 (6.73%) jQuery
15 94 (6.20%) Kafka
16 90 (5.94%) .NET Framework
17 88 (5.81%) HTML5
17 88 (5.81%) YAML
18 86 (5.68%) J2EE
19 84 (5.54%) Ajax
Miscellaneous
1 135 (8.91%) User Experience
2 83 (5.48%) Mobile App
3 71 (4.69%) Public Cloud
4 51 (3.37%) Data Protection Act
5 45 (2.97%) Greenfield Project
6 43 (2.84%) Self-Motivation
7 40 (2.64%) Data Structures
8 37 (2.44%) Enterprise Software
9 27 (1.78%) Cloud Native
10 25 (1.65%) Fixed Income
11 24 (1.58%) Legacy Systems
12 23 (1.52%) Social Media
13 20 (1.32%) Linux Command Line
14 18 (1.19%) Hybrid Cloud
15 16 (1.06%) Legacy Applications
16 15 (0.99%) Management Information System
17 14 (0.92%) Reference Data
17 14 (0.92%) Reinsurance
18 13 (0.86%) Algorithms
18 13 (0.86%) IoT
Operating Systems
1 257 (16.96%) Linux
2 156 (10.30%) Windows
3 129 (8.51%) Unix
4 61 (4.03%) Android
5 44 (2.90%) Apple iOS
6 8 (0.53%) Mac OS
7 6 (0.40%) Mac OS X
8 5 (0.33%) CentOS
8 5 (0.33%) Red Hat Enterprise Linux
9 4 (0.26%) Ubuntu
9 4 (0.26%) Windows Server
10 2 (0.13%) Solaris
10 2 (0.13%) VMS
Processes & Methodologies
1 693 (45.74%) Agile
2 467 (30.83%) DevOps
3 360 (23.76%) CI/CD
4 340 (22.44%) Microservices
5 303 (20.00%) Scrum
6 275 (18.15%) Test Automation
7 217 (14.32%) TDD
8 195 (12.87%) Problem-Solving
9 151 (9.97%) Continuous Integration
10 143 (9.44%) Data Modelling
11 140 (9.24%) Software Engineering
12 138 (9.11%) Business Intelligence
12 138 (9.11%) Unit Testing
13 137 (9.04%) Full Stack Development
14 132 (8.71%) OO
15 128 (8.45%) Kanban
16 122 (8.05%) BDD
17 118 (7.79%) SDLC
18 112 (7.39%) ETL
19 109 (7.19%) Front End Development
Programming Languages
1 564 (37.23%) Java
2 552 (36.44%) SQL
3 485 (32.01%) JavaScript
4 305 (20.13%) Python
5 204 (13.47%) C#
6 125 (8.25%) TypeScript
7 122 (8.05%) PL/SQL
8 109 (7.19%) PowerShell
9 74 (4.88%) Ruby
10 69 (4.55%) C++
11 66 (4.36%) Shell Script
12 62 (4.09%) Scala
13 60 (3.96%) Bash
14 47 (3.10%) PHP
15 41 (2.71%) T-SQL
16 40 (2.64%) Kotlin
17 30 (1.98%) Go
18 27 (1.78%) C
18 27 (1.78%) ES6
19 26 (1.72%) VBScript
Qualifications
1 221 (14.59%) Security Cleared
2 184 (12.15%) SC Cleared
3 109 (7.19%) Degree
4 44 (2.90%) Computer Science Degree
5 30 (1.98%) AWS Certification
6 28 (1.85%) DV Cleared
7 25 (1.65%) ISEB
7 25 (1.65%) ISTQB
8 20 (1.32%) ISTQB Foundation Certification
9 14 (0.92%) BPSS Clearance
10 10 (0.66%) CEH
10 10 (0.66%) CISSP
10 10 (0.66%) Master's Degree
11 6 (0.40%) CISM
11 6 (0.40%) PMI Certification
11 6 (0.40%) PMP
12 4 (0.26%) CSSLP
12 4 (0.26%) GIAC
12 4 (0.26%) Microsoft Certification
13 3 (0.20%) OCPJP
Quality Assurance & Compliance
1 121 (7.99%) QA
2 94 (6.20%) Accessibility
3 35 (2.31%) WCAG
4 20 (1.32%) GDPR
5 10 (0.66%) Data Quality
6 9 (0.59%) ISO/IEC 27001
6 9 (0.59%) PCI DSS
7 8 (0.53%) NIST
8 7 (0.46%) SOC 2
9 5 (0.33%) ISO 20022
9 5 (0.33%) SLA
10 4 (0.26%) Actionable Recommendations
11 1 (0.066%) HL7
11 1 (0.066%) ISO 9001
11 1 (0.066%) PMO
11 1 (0.066%) SEPA
System Software
1 217 (14.32%) Docker
2 46 (3.04%) Active Directory
3 31 (2.05%) Virtual Machines
4 24 (1.58%) VMware Infrastructure
5 17 (1.12%) VMware NSX
6 12 (0.79%) vSphere
7 6 (0.40%) Virtual Desktop
8 4 (0.26%) KVM
8 4 (0.26%) NFS
9 3 (0.20%) HDFS
10 2 (0.13%) Firmware
10 2 (0.13%) OpenAM
11 1 (0.066%) OpenDJ
11 1 (0.066%) VirtualBox
11 1 (0.066%) VMware ESXi
11 1 (0.066%) VMware Workstation
Systems Management
1 182 (12.01%) Kubernetes
2 125 (8.25%) Terraform
3 120 (7.92%) Ansible
4 67 (4.42%) Puppet
5 45 (2.97%) Kibana
6 27 (1.78%) Grafana
7 26 (1.72%) Prometheus
8 16 (1.06%) Opscode Chef
9 15 (0.99%) Istio
10 12 (0.79%) BladeLogic
10 12 (0.79%) PowerCLI
10 12 (0.79%) vRealize
10 12 (0.79%) WMI
11 11 (0.73%) Single Sign-On
12 10 (0.66%) Nessus
13 9 (0.59%) logstash
13 9 (0.59%) Packer
14 8 (0.53%) vRealize Orchestrator
15 7 (0.46%) HP Fortify
15 7 (0.46%) Netcool
Vendors
1 305 (20.13%) Oracle
2 176 (11.62%) Microsoft
3 72 (4.75%) Google
4 63 (4.16%) Splunk
5 61 (4.03%) SAP
6 51 (3.37%) IBM
7 43 (2.84%) AppDynamics
8 36 (2.38%) MuleSoft
9 31 (2.05%) webMethods
10 30 (1.98%) Mercator
11 26 (1.72%) VMware
12 25 (1.65%) Adobe
12 25 (1.65%) ServiceNow
13 22 (1.45%) Sitecore
14 20 (1.32%) Informatica
14 20 (1.32%) Salesforce.com
15 19 (1.25%) Sparx
16 18 (1.19%) Atlassian
16 18 (1.19%) SolarWinds
17 16 (1.06%) Pega