Period
to 11 April 2021

The following table provides summary statistics for contract job vacancies advertised in England 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 11 April 2021 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 > England
6 months to
11 Apr 2021
Same period 2020 Same period 2019
Rank 130 147 97
Rank change year-on-year +17 -50 +5
Contract jobs citing JSON 814 972 2,261
As % of all contract jobs advertised in England 1.95% 1.81% 2.56%
As % of the Libraries, Frameworks & Software Standards category 6.41% 5.96% 7.70%
Number of daily rates quoted 540 573 1,436
10th Percentile £325 £338 £350
25th Percentile £388 £400 £413
Median daily rate (50th Percentile) £475 £475 £500
Median % change year-on-year - -5.00% +5.26%
75th Percentile £550 £575 £572
90th Percentile £641 £638 £625
UK median daily rate £475 £475 £488
% change year-on-year - -2.56% +2.63%
Number of hourly rates quoted 21 15 14
10th Percentile £21.75 £22.10 £52.50
25th Percentile £25.50 £44.43 £53.13
Median hourly rate £51.00 £50.50 £55.00
Median % change year-on-year +0.99% -8.18% +22.22%
75th Percentile £58.00 £61.50 £60.00
90th Percentile £68.00 £68.75 £62.23
UK median hourly rate £53.00 £50.50 £55.00
% change year-on-year +4.95% -8.18% +22.22%

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 advertised in England with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
England
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 12,705 16,320 29,358
As % of all contract IT jobs advertised in England 30.43% 30.44% 33.24%
Number of daily rates quoted 9,179 11,644 21,185
10th Percentile £325 £338 £331
25th Percentile £406 £413 £406
Median daily rate (50th Percentile) £500 £500 £500
75th Percentile £592 £588 £575
90th Percentile £688 £675 £650
UK median daily rate £500 £500 £488
% change year-on-year - +2.56% +2.63%
Number of hourly rates quoted 148 152 247
10th Percentile £22.00 £19.79 £18.50
25th Percentile £31.25 £31.11 £27.75
Median hourly rate £45.00 £46.00 £44.00
Median % change year-on-year -2.17% +4.55% +7.98%
75th Percentile £57.50 £55.25 £52.50
90th Percentile £63.25 £73.75 £60.00
UK median hourly rate £45.00 £46.00 £43.00
% change year-on-year -2.17% +6.98% +6.83%

JSON
Job Vacancy Trend in England

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

Job vacancy trend for JSON in England

JSON
Contractor Daily Rate Trend in England

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

Daily rate trend for JSON in England

JSON
Daily Rate Histogram in England

Daily rate distribution for jobs citing JSON in England over the 6 months to 11 April 2021.

Daily rate histogram for JSON in England

JSON
Contractor Hourly Rate Trend in England

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

Hourly rate trend for JSON in England

JSON
Hourly Rate Histogram in England

Hourly rate distribution of jobs citing JSON in England over the 6 months to 11 April 2021.

Hourly rate histogram for JSON in England

JSON
Contract Job Locations in England

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing JSON within the England region over the 6 months to 11 April 2021. 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
Job
Vacancies
London +10 451 £500 - 118
North of England +30 100 £425 -1.73% 87
South East +39 94 £413 -8.33% 41
Midlands -8 65 £383 -5.72% 32
West Midlands +17 60 £383 -8.54% 24
Yorkshire +32 55 £425 -10.53% 33
South West +30 30 £438 +2.94% 18
North West +13 30 £375 -16.67% 50
East of England +31 28 £525 - 23
North East +18 16 £500 +21.21% 4
East Midlands -14 5 £395 +8.97% 8
JSON
UK

For the 6 months to 11 April 2021, 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 across the England region with a requirement for JSON.

1 372 (45.70%) Agile Software Development
2 357 (43.86%) XML
3 302 (37.10%) Java
4 247 (30.34%) SQL
5 229 (28.13%) REST
6 228 (28.01%) Azure
7 224 (27.52%) Git (software)
8 220 (27.03%) JavaScript
9 215 (26.41%) Jenkins
10 202 (24.82%) Web Services
11 189 (23.22%) RESTful
12 186 (22.85%) HTML
13 179 (21.99%) DevOps
14 158 (19.41%) AWS
15 155 (19.04%) Finance
16 151 (18.55%) SOAP
17 146 (17.94%) Test Automation
17 146 (17.94%) Microservices
18 142 (17.44%) CSS
19 141 (17.32%) JIRA
20 139 (17.08%) Python
21 123 (15.11%) Docker
22 121 (14.86%) Oracle
23 119 (14.62%) Spring
24 115 (14.13%) Continuous Integration
25 114 (14.00%) TDD
26 113 (13.88%) Scrum
27 110 (13.51%) Kubernetes
28 109 (13.39%) C#
28 109 (13.39%) Linux

JSON
Co-occurring IT Skills in England 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 87 (10.69%) Confluence
2 38 (4.67%) WebLogic
3 29 (3.56%) Apache Spark
4 22 (2.70%) WebSphere
5 21 (2.58%) Mule
6 20 (2.46%) CMS
6 20 (2.46%) OpenStack
6 20 (2.46%) Red Hat Fuse
7 18 (2.21%) Apache
7 18 (2.21%) Cloud Foundry
7 18 (2.21%) JBoss
8 17 (2.09%) Tomcat
9 16 (1.97%) SharePoint
10 14 (1.72%) Jadu
11 13 (1.60%) BizTalk Server
12 12 (1.47%) Elasticsearch
13 11 (1.35%) Oracle SOA Suite
14 10 (1.23%) Anypoint
15 7 (0.86%) MQSeries
16 6 (0.74%) Oracle Service Bus
Applications
1 20 (2.46%) Chatbot
2 12 (1.47%) Microsoft Office
3 11 (1.35%) Photoshop
4 3 (0.37%) Microsoft Excel
4 3 (0.37%) Microsoft PowerPoint
4 3 (0.37%) MS Visio
5 2 (0.25%) Adobe XD
5 2 (0.25%) Spreadsheet
6 1 (0.12%) Fusion 360
6 1 (0.12%) Microsoft Project
Business Applications
1 13 (1.60%) SAP FI-CA
1 13 (1.60%) SAP PSCD
2 10 (1.23%) Sparx Enterprise Architect
3 4 (0.49%) Oracle ERP
4 3 (0.37%) BusinessWorks
4 3 (0.37%) Distributed Ledger
4 3 (0.37%) Magento
4 3 (0.37%) Minerva
4 3 (0.37%) SAP TEM
4 3 (0.37%) Summit
5 2 (0.25%) SAP Hybris
6 1 (0.12%) Dynamics CRM
6 1 (0.12%) Dynamics NAV
6 1 (0.12%) Oracle Applications
6 1 (0.12%) Oracle BPM
6 1 (0.12%) Salesforce.com CRM
6 1 (0.12%) SAP CRM
6 1 (0.12%) Tesseract
Cloud Services
1 228 (28.01%) Azure
2 158 (19.41%) AWS
3 98 (12.04%) GitHub
4 57 (7.00%) IaaS
5 55 (6.76%) PaaS
6 47 (5.77%) Power Platform
7 41 (5.04%) Serverless
8 40 (4.91%) Amazon S3
9 38 (4.67%) GCP
10 31 (3.81%) Logic Apps
10 31 (3.81%) SaaS
11 28 (3.44%) PowerApps
12 24 (2.95%) OpenShift
13 21 (2.58%) Google Analytics
13 21 (2.58%) Slack
14 20 (2.46%) Azure Data Factory
14 20 (2.46%) Boomi
15 19 (2.33%) AWS Lambda
16 18 (2.21%) Azure Active Directory
17 15 (1.84%) Amazon SQS
Communications & Networking
1 74 (9.09%) HTTP
2 16 (1.97%) 3GPP
2 16 (1.97%) Internet
2 16 (1.97%) SGSN
2 16 (1.97%) Software-Defined Networking
2 16 (1.97%) TCP/IP
3 14 (1.72%) HTTPS
4 12 (1.47%) LAN
5 10 (1.23%) WAN
6 8 (0.98%) DNS
7 6 (0.74%) Firewall
7 6 (0.74%) FTP
7 6 (0.74%) Remote Desktop
7 6 (0.74%) RTMP
7 6 (0.74%) SSL
7 6 (0.74%) VSAN
8 5 (0.61%) IPv4
8 5 (0.61%) IPv6
8 5 (0.61%) iSCSI
8 5 (0.61%) SSH
Database & Business Intelligence
1 95 (11.67%) SQL Server
2 79 (9.71%) Relational Database
3 72 (8.85%) PostgreSQL
4 56 (6.88%) NoSQL
5 51 (6.27%) MySQL
6 43 (5.28%) MongoDB
7 42 (5.16%) RDBMS
8 39 (4.79%) Data Warehouse
9 28 (3.44%) Oracle Database
10 27 (3.32%) Big Data
10 27 (3.32%) Power BI
11 26 (3.19%) Cosmos DB
12 24 (2.95%) Hadoop
13 22 (2.70%) SQL Server Integration Services
13 22 (2.70%) Tableau
14 19 (2.33%) Azure SQL Database
15 17 (2.09%) Apache Hive
16 15 (1.84%) Parquet
17 13 (1.60%) Apache Cassandra
17 13 (1.60%) Snowflake Schema
Development Applications
1 224 (27.52%) Git (software)
2 215 (26.41%) Jenkins
3 141 (17.32%) JIRA
4 87 (10.69%) Maven
5 73 (8.97%) JUnit
6 43 (5.28%) Sonatype Nexus
7 42 (5.16%) Visual Studio
8 41 (5.04%) Xcode
9 37 (4.55%) Selenium
10 33 (4.05%) Gradle
11 31 (3.81%) SoapUI
12 30 (3.69%) Cucumber
12 30 (3.69%) Postman
13 28 (3.44%) Mockito
14 25 (3.07%) Android Studio
14 25 (3.07%) CocoaPods
15 24 (2.95%) IntelliJ
16 23 (2.83%) GitLab
16 23 (2.83%) Team Foundation Server
17 21 (2.58%) Eclipse
General
1 155 (19.04%) Finance
2 87 (10.69%) Public Sector
3 52 (6.39%) Banking
4 39 (4.79%) Telecoms
5 34 (4.18%) Marketing
6 28 (3.44%) Manufacturing
7 23 (2.83%) Electronics
7 23 (2.83%) Law
8 13 (1.60%) Local Government
9 9 (1.11%) Retail
10 8 (0.98%) Investment Banking
11 7 (0.86%) Legal
12 6 (0.74%) Pharmaceutical
12 6 (0.74%) Publishing
13 5 (0.61%) Advertising
14 4 (0.49%) French Language
14 4 (0.49%) Retail Banking
15 3 (0.37%) Front Office
15 3 (0.37%) Games
16 2 (0.25%) Back Office
Job Titles
1 372 (45.70%) Developer
2 112 (13.76%) Architect
3 103 (12.65%) Java Developer
4 53 (6.51%) Analyst
5 52 (6.39%) Senior Developer
6 41 (5.04%) DevOps Engineer
7 38 (4.67%) Front End Developer (Client-Side Developer)
8 36 (4.42%) Data Engineer
9 31 (3.81%) iOS Developer
10 30 (3.69%) Azure Engineer
10 30 (3.69%) Solutions Architect
11 28 (3.44%) Cloud Engineer
12 26 (3.19%) Data Architect
13 25 (3.07%) Full Stack Developer
13 25 (3.07%) Integration Developer
14 24 (2.95%) .NET Developer
14 24 (2.95%) C# Developer
15 23 (2.83%) Consultant
15 23 (2.83%) Senior Java Developer
16 21 (2.58%) SQL Developer
Libraries, Frameworks & Software Standards
1 357 (43.86%) XML
2 229 (28.13%) REST
3 202 (24.82%) Web Services
4 189 (23.22%) RESTful
5 186 (22.85%) HTML
6 151 (18.55%) SOAP
7 142 (17.44%) CSS
8 119 (14.62%) Spring
9 103 (12.65%) .NET
10 83 (10.20%) Node.js
10 83 (10.20%) React
11 74 (9.09%) HTML5
12 72 (8.85%) YAML
13 71 (8.72%) Spring Boot
14 57 (7.00%) XSLT
15 50 (6.14%) J2EE
16 46 (5.65%) CSS3
17 45 (5.53%) AngularJS
18 44 (5.41%) jQuery
19 40 (4.91%) Kafka
Miscellaneous
1 57 (7.00%) Mobile App
2 52 (6.39%) User Experience
3 41 (5.04%) Analytical Skills
4 27 (3.32%) Enterprise Software
5 26 (3.19%) Data Centre
6 24 (2.95%) Data Structures
7 23 (2.83%) Cloud Native
8 22 (2.70%) Linux Command Line
9 19 (2.33%) iPad
9 19 (2.33%) Public Cloud
10 18 (2.21%) Derivative
11 14 (1.72%) iPhone
12 13 (1.60%) Reference Data
12 13 (1.60%) Social Media
12 13 (1.60%) W3C
13 11 (1.35%) Animation
13 11 (1.35%) Client/Server
14 9 (1.11%) Graphic Design
14 9 (1.11%) Greenfield Project
15 8 (0.98%) Clustering
Operating Systems
1 109 (13.39%) Linux
2 73 (8.97%) Windows
3 72 (8.85%) Unix
4 59 (7.25%) Apple iOS
5 47 (5.77%) Android
6 10 (1.23%) Red Hat Enterprise Linux
7 9 (1.11%) Mac OS
7 9 (1.11%) Ubuntu
7 9 (1.11%) Windows Server
8 7 (0.86%) Mac OS X
9 5 (0.61%) CentOS
9 5 (0.61%) VMS
10 4 (0.49%) CoreOS
10 4 (0.49%) Debian
11 3 (0.37%) Solaris
11 3 (0.37%) Windows 10
11 3 (0.37%) Windows Server 2012
12 2 (0.25%) Windows Server 2008
13 1 (0.12%) webOS
13 1 (0.12%) Windows 7
Processes & Methodologies
1 372 (45.70%) Agile Software Development
2 179 (21.99%) DevOps
3 146 (17.94%) Microservices
3 146 (17.94%) Test Automation
4 115 (14.13%) Continuous Integration
5 114 (14.00%) TDD
6 113 (13.88%) Scrum
7 86 (10.57%) SOA
8 82 (10.07%) Data Modelling
9 81 (9.95%) Business Intelligence
10 60 (7.37%) Problem-Solving
11 59 (7.25%) MVC
11 59 (7.25%) OO
12 52 (6.39%) Migration
13 51 (6.27%) Software Engineering
14 50 (6.14%) Front End Development
14 50 (6.14%) Kanban
15 48 (5.90%) Waterfall
16 46 (5.65%) BDD
17 45 (5.53%) Open Source
Programming Languages
1 302 (37.10%) Java
2 247 (30.34%) SQL
3 220 (27.03%) JavaScript
4 139 (17.08%) Python
5 109 (13.39%) C#
6 70 (8.60%) PowerShell
7 67 (8.23%) PL/SQL
8 65 (7.99%) Java 8
9 48 (5.90%) Apple Swift
10 45 (5.53%) Kotlin
11 43 (5.28%) Bash Shell
12 40 (4.91%) Shell Script
13 39 (4.79%) PHP
14 38 (4.67%) C++
15 30 (3.69%) T-SQL
16 26 (3.19%) Scala
17 22 (2.70%) Ruby
18 21 (2.58%) TypeScript
19 20 (2.46%) XPath
20 15 (1.84%) Objective-C
Qualifications
1 105 (12.90%) Security Cleared
2 88 (10.81%) SC Cleared
3 30 (3.69%) Degree
4 15 (1.84%) Computer Science Degree
5 14 (1.72%) ISEB
5 14 (1.72%) ISTQB
5 14 (1.72%) ISTQB Foundation Certification
6 8 (0.98%) AWS Certification
7 6 (0.74%) DV Cleared
8 4 (0.49%) Master's Degree
9 3 (0.37%) CISM
9 3 (0.37%) CISSP
9 3 (0.37%) GIAC
9 3 (0.37%) SANS
10 2 (0.25%) Cisco Certification
10 2 (0.25%) VCP6
10 2 (0.25%) VMware Certified Professional (VCP)
11 1 (0.12%) BPSS Clearance
11 1 (0.12%) Microsoft Certification
11 1 (0.12%) TOGAF Certification
Quality Assurance & Compliance
1 60 (7.37%) QA
2 18 (2.21%) GDPR
3 16 (1.97%) OASIS TOSCA
4 8 (0.98%) WCAG
5 5 (0.61%) Data Quality
6 4 (0.49%) HL7
7 3 (0.37%) HIPAA
7 3 (0.37%) PCI DSS
7 3 (0.37%) RMADS
7 3 (0.37%) Sarbanes-Oxley
7 3 (0.37%) SLA
8 2 (0.25%) Actionable Recommendations
8 2 (0.25%) ISO 9000
9 1 (0.12%) ISO 20022
9 1 (0.12%) SEPA
9 1 (0.12%) TARGET2
System Software
1 123 (15.11%) Docker
2 22 (2.70%) VMware ESXi
3 17 (2.09%) LXC
4 16 (1.97%) KVM
5 13 (1.60%) HDFS
6 11 (1.35%) Active Directory
7 8 (0.98%) VMware Infrastructure
8 6 (0.74%) VMware NSX
8 6 (0.74%) vSphere
9 3 (0.37%) Apache ZooKeeper
9 3 (0.37%) Firmware
9 3 (0.37%) Virtual Machines
10 2 (0.25%) NFS
Systems Management
1 110 (13.51%) Kubernetes
2 87 (10.69%) Ansible
3 51 (6.27%) Terraform
4 32 (3.93%) Grafana
5 22 (2.70%) Docker Swarm
6 21 (2.58%) Prometheus
6 21 (2.58%) Puppet
7 16 (1.97%) Cloudify
7 16 (1.97%) Juju
8 12 (1.47%) Opscode Chef
9 6 (0.74%) Istio
9 6 (0.74%) PowerCLI
9 6 (0.74%) vCenter Server
9 6 (0.74%) vRealize
10 5 (0.61%) Rancher
10 5 (0.61%) Red Hat Satellite
11 4 (0.49%) Hadoop YARN
11 4 (0.49%) Kibana
11 4 (0.49%) Mesos
11 4 (0.49%) Packer
Vendors
1 121 (14.86%) Oracle
2 95 (11.67%) Microsoft
3 56 (6.88%) SAP
4 50 (6.14%) Red Hat
5 42 (5.16%) Google
6 37 (4.55%) webMethods
7 31 (3.81%) Splunk
8 26 (3.19%) Dell
9 25 (3.07%) MuleSoft
10 24 (2.95%) Cisco
11 21 (2.58%) AppDynamics
12 20 (2.46%) BEA
12 20 (2.46%) Informatica
13 19 (2.33%) Salesforce.com
14 18 (2.21%) Adobe
15 16 (1.97%) Ericsson
15 16 (1.97%) Juniper
15 16 (1.97%) Mirantis
16 14 (1.72%) WSO2
17 13 (1.60%) ServiceNow