Period
to 18 January 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 18 January 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
18 Jan 2021
Same period 2020 Same period 2019
Rank 122 135 100
Rank change year-on-year +13 -35 -2
Contract jobs citing JSON 717 1,268 2,335
As % of all contract jobs advertised in England 2.12% 1.93% 2.56%
As % of the Libraries, Frameworks & Software Standards category 6.88% 6.35% 7.42%
Number of daily rates quoted 611 833 1,567
Median daily rate £475 £475 £488
Median daily rate % change year-on-year - -2.56% +3.72%
10th Percentile £325 £330 £350
90th Percentile £613 £638 £625
UK median daily rate £450 £475 £475
% change year-on-year -5.26% - +5.56%
Number of hourly rates quoted 22 12 8
Median hourly rate £46.50 £49.68 £35.00
Median hourly rate % change year-on-year -6.39% +41.93% -11.95%
10th Percentile £21.75 £16.00 £28.51
90th Percentile £67.00 £53.70 £62.84
UK median hourly rate £51.00 £49.68 £35.00
% change year-on-year +2.67% +41.93% -11.95%

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 10,426 19,966 31,473
As % of all contract IT jobs advertised in England 30.84% 30.35% 34.52%
Number of daily rates quoted 7,429 14,205 22,626
Median daily rate £490 £500 £495
Median daily rate % change year-on-year -2.00% +1.01% +4.21%
10th Percentile £313 £335 £325
90th Percentile £663 £651 £638
UK median daily rate £482 £495 £480
% change year-on-year -2.63% +3.13% +3.78%
Number of hourly rates quoted 120 184 242
Median hourly rate £45.00 £46.00 £41.85
Median hourly rate % change year-on-year -2.17% +9.93% +4.61%
10th Percentile £22.10 £17.21 £18.55
90th Percentile £62.03 £78.75 £60.23
Median hourly rate £45.00 £46.00 £41.85
% change year-on-year -2.17% +9.93% +4.61%

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 18 January 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 18 January 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 18 January 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 -3 352 £520 +4.00% 117
North of England +69 132 £450 - 52
Midlands +29 93 £432 -6.59% 31
Yorkshire +59 91 £450 -13.46% 15
West Midlands +32 77 £428 -9.89% 19
South East +17 72 £370 -17.78% 39
North West +65 32 £433 -1.14% 35
South West +41 21 £425 - 23
East of England +43 17 £510 +13.33% 26
East Midlands +23 16 £500 +42.86% 12
North East +6 10 £413 - 2
JSON
UK

For the 6 months to 18 January 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.

1 362 (50.49%) Agile Software Development
2 344 (47.98%) Java
3 317 (44.21%) XML
4 243 (33.89%) REST
5 233 (32.50%) Git (software)
6 227 (31.66%) Jenkins
7 202 (28.17%) JavaScript
8 195 (27.20%) SQL
9 177 (24.69%) Web Services
10 173 (24.13%) DevOps
11 170 (23.71%) Azure
12 166 (23.15%) Microservices
13 165 (23.01%) JIRA
14 156 (21.76%) RESTful
15 154 (21.48%) AWS
16 152 (21.20%) Test Automation
16 152 (21.20%) Spring
17 151 (21.06%) HTML
18 146 (20.36%) SOAP
19 139 (19.39%) Scrum
20 134 (18.69%) Python
21 129 (17.99%) Oracle
22 125 (17.43%) Finance
23 119 (16.60%) TDD
24 117 (16.32%) Continuous Integration
24 117 (16.32%) Confluence
24 117 (16.32%) Spring Boot
25 113 (15.76%) CSS
25 113 (15.76%) GitHub
26 111 (15.48%) Maven

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
1 117 (16.32%) Confluence
2 58 (8.09%) Mule
3 56 (7.81%) WebLogic
4 46 (6.42%) Red Hat Fuse
5 39 (5.44%) Cloud Foundry
6 35 (4.88%) JBoss
7 32 (4.46%) WebSphere
8 28 (3.91%) Apache Spark
9 23 (3.21%) Apache
9 23 (3.21%) Tomcat
10 21 (2.93%) Elasticsearch
11 19 (2.65%) Oracle SOA Suite
12 15 (2.09%) BizTalk Server
13 14 (1.95%) SharePoint
14 13 (1.81%) Oracle Service Bus
15 12 (1.67%) MQSeries
16 11 (1.53%) CMS
16 11 (1.53%) OpenStack
17 10 (1.39%) Apache ServiceMix
17 10 (1.39%) IIS
Applications
1 22 (3.07%) Microsoft Office
2 11 (1.53%) Microsoft Excel
3 8 (1.12%) Chatbot
3 8 (1.12%) Photoshop
4 4 (0.56%) Adobe XD
5 3 (0.42%) MS Visio
5 3 (0.42%) Spreadsheet
6 2 (0.28%) Microsoft PowerPoint
6 2 (0.28%) Microsoft Project
7 1 (0.14%) Figma
7 1 (0.14%) Fusion 360
7 1 (0.14%) GIMP
Business Applications
1 16 (2.23%) SAP FI-CA
2 14 (1.95%) Dynamics CRM
3 9 (1.26%) SAP PSCD
3 9 (1.26%) Sparx Enterprise Architect
4 7 (0.98%) Dynamics AX
5 5 (0.70%) Dynamics NAV
6 4 (0.56%) BusinessWorks
6 4 (0.56%) SAP Hybris
7 3 (0.42%) Magento
7 3 (0.42%) Minerva
7 3 (0.42%) Oracle ERP
7 3 (0.42%) SAP TEM
8 2 (0.28%) Payment Gateway
9 1 (0.14%) Oracle Applications
9 1 (0.14%) Salesforce.com CRM
9 1 (0.14%) SAP CRM
9 1 (0.14%) SAP ERP
9 1 (0.14%) SAP S/4HANA
9 1 (0.14%) Summit
Cloud Services
1 170 (23.71%) Azure
2 154 (21.48%) AWS
3 113 (15.76%) GitHub
4 57 (7.95%) IaaS
5 53 (7.39%) PaaS
5 53 (7.39%) Slack
6 48 (6.69%) Power Platform
7 30 (4.18%) Amazon S3
8 28 (3.91%) PowerApps
9 26 (3.63%) Serverless
10 24 (3.35%) SaaS
11 23 (3.21%) Apigee
11 23 (3.21%) Logic Apps
12 18 (2.51%) GCP
13 17 (2.37%) Amazon ECS
13 17 (2.37%) Boomi
13 17 (2.37%) Power Automate
14 16 (2.23%) Amazon SQS
15 15 (2.09%) Azure Data Factory
15 15 (2.09%) Google Analytics
Communications & Networking
1 94 (13.11%) HTTP
2 20 (2.79%) TCP/IP
3 16 (2.23%) Internet
4 13 (1.81%) SSL
5 12 (1.67%) LAN
6 10 (1.39%) F5 BIG-IP GTM
6 10 (1.39%) WAN
7 9 (1.26%) Software-Defined Networking
8 8 (1.12%) Firewall
9 7 (0.98%) Network Security
9 7 (0.98%) Remote Desktop
10 6 (0.84%) 3GPP
10 6 (0.84%) SGSN
11 5 (0.70%) DNS
11 5 (0.70%) SSH
12 4 (0.56%) DVB
12 4 (0.56%) SMTP
13 3 (0.42%) DSL
13 3 (0.42%) Ethernet
13 3 (0.42%) MPLS
Database & Business Intelligence
1 85 (11.85%) SQL Server
2 76 (10.60%) PostgreSQL
3 61 (8.51%) MongoDB
4 54 (7.53%) MySQL
4 54 (7.53%) Relational Database
5 53 (7.39%) NoSQL
6 35 (4.88%) Hadoop
7 34 (4.74%) Oracle Database
8 33 (4.60%) Power BI
9 28 (3.91%) Data Warehouse
10 21 (2.93%) Azure SQL Database
11 20 (2.79%) RDBMS
12 18 (2.51%) Apache Hive
13 17 (2.37%) Cosmos DB
14 16 (2.23%) Big Data
15 15 (2.09%) Tableau
16 14 (1.95%) SQL Server Integration Services
17 13 (1.81%) Amazon DynamoDB
18 11 (1.53%) Apache Cassandra
18 11 (1.53%) Parquet
Development Applications
1 233 (32.50%) Git (software)
2 227 (31.66%) Jenkins
3 165 (23.01%) JIRA
4 111 (15.48%) Maven
5 96 (13.39%) JUnit
6 71 (9.90%) Sonatype Nexus
7 60 (8.37%) Mockito
8 55 (7.67%) Android Studio
8 55 (7.67%) Xcode
9 48 (6.69%) CocoaPods
10 47 (6.56%) Selenium
11 44 (6.14%) IntelliJ
12 42 (5.86%) Cucumber
13 36 (5.02%) SoapUI
14 33 (4.60%) Gradle
15 30 (4.18%) Postman
16 28 (3.91%) Visual Studio
17 26 (3.63%) JMeter
18 25 (3.49%) SonarQube
19 23 (3.21%) GitLab
General
1 125 (17.43%) Finance
2 98 (13.67%) Public Sector
3 59 (8.23%) Banking
4 36 (5.02%) Marketing
5 35 (4.88%) Telecoms
6 33 (4.60%) Manufacturing
7 32 (4.46%) Electronics
8 16 (2.23%) Retail
9 14 (1.95%) Law
10 9 (1.26%) Local Government
11 8 (1.12%) Retail Banking
12 7 (0.98%) Advertising
12 7 (0.98%) Pharmaceutical
13 4 (0.56%) Police
14 3 (0.42%) Front Office
15 2 (0.28%) Automotive
15 2 (0.28%) French Language
15 2 (0.28%) Investment Banking
15 2 (0.28%) Publishing
16 1 (0.14%) Private Banking
Job Titles
1 331 (46.16%) Developer
2 114 (15.90%) Java Developer
3 111 (15.48%) Architect
4 39 (5.44%) Senior Developer
5 36 (5.02%) Data Engineer
6 34 (4.74%) Analyst
7 33 (4.60%) Solutions Architect
8 31 (4.32%) Integration Developer
9 30 (4.18%) DevOps Engineer
10 27 (3.77%) Senior Java Developer
11 25 (3.49%) Consultant
11 25 (3.49%) iOS Developer
12 24 (3.35%) Lead Developer
13 23 (3.21%) Azure Engineer
14 20 (2.79%) Front End Developer (Client-Side Developer)
14 20 (2.79%) Software Engineer
15 19 (2.65%) Integration Architect
16 18 (2.51%) React Developer
17 16 (2.23%) Senior Integration Developer
17 16 (2.23%) Test Analyst
Libraries, Frameworks & Software Standards
1 317 (44.21%) XML
2 243 (33.89%) REST
3 177 (24.69%) Web Services
4 156 (21.76%) RESTful
5 152 (21.20%) Spring
6 151 (21.06%) HTML
7 146 (20.36%) SOAP
8 117 (16.32%) Spring Boot
9 113 (15.76%) CSS
10 110 (15.34%) Node.js
11 98 (13.67%) React
12 88 (12.27%) .NET
13 70 (9.76%) HTML5
14 61 (8.51%) XSLT
15 55 (7.67%) Apache Camel
16 49 (6.83%) RabbitMQ
17 47 (6.56%) Middleware
18 45 (6.28%) J2EE
19 44 (6.14%) Kafka
20 43 (6.00%) jQuery
Miscellaneous
1 95 (13.25%) Mobile App
2 48 (6.69%) User Experience
3 26 (3.63%) Enterprise Software
4 25 (3.49%) Analytical Skills
4 25 (3.49%) Data Structures
5 16 (2.23%) Linux Command Line
6 15 (2.09%) Public Cloud
7 14 (1.95%) Data Centre
7 14 (1.95%) iPad
8 12 (1.67%) Mobile Payment
9 11 (1.53%) Cloud Native
10 10 (1.39%) Derivative
10 10 (1.39%) Management Information System
11 9 (1.26%) Private Cloud
11 9 (1.26%) Social Media
11 9 (1.26%) Virtual Team
11 9 (1.26%) W3C
12 8 (1.12%) Self-Motivation
13 7 (0.98%) iPhone
13 7 (0.98%) NHS
Operating Systems
1 97 (13.53%) Linux
2 78 (10.88%) Android
3 69 (9.62%) Apple iOS
4 64 (8.93%) Unix
5 55 (7.67%) Windows
6 25 (3.49%) Red Hat Enterprise Linux
7 16 (2.23%) Windows Server
8 14 (1.95%) Windows Server 2012
9 9 (1.26%) Mac OS X
10 6 (0.84%) Debian
10 6 (0.84%) Ubuntu
11 4 (0.56%) Amazon Linux
11 4 (0.56%) Windows Server 2008
12 3 (0.42%) CentOS
12 3 (0.42%) CoreOS
12 3 (0.42%) VMS
12 3 (0.42%) Windows Server 2016
13 1 (0.14%) Solaris
13 1 (0.14%) webOS
13 1 (0.14%) Windows 7
Processes & Methodologies
1 362 (50.49%) Agile Software Development
2 173 (24.13%) DevOps
3 166 (23.15%) Microservices
4 152 (21.20%) Test Automation
5 139 (19.39%) Scrum
6 119 (16.60%) TDD
7 117 (16.32%) Continuous Integration
8 92 (12.83%) Kanban
9 87 (12.13%) Business Intelligence
10 81 (11.30%) SOA
11 79 (11.02%) Data Modelling
12 75 (10.46%) Continuous Delivery
13 58 (8.09%) Android Development
14 55 (7.67%) iOS Development
15 52 (7.25%) API Development
16 49 (6.83%) Analytics
16 49 (6.83%) Waterfall
17 48 (6.69%) BDD
17 48 (6.69%) OO
17 48 (6.69%) Pair Programming
Programming Languages
1 344 (47.98%) Java
2 202 (28.17%) JavaScript
3 195 (27.20%) SQL
4 134 (18.69%) Python
5 83 (11.58%) Java 8
6 82 (11.44%) Kotlin
7 77 (10.74%) C#
8 68 (9.48%) PL/SQL
9 64 (8.93%) Apple Swift
10 43 (6.00%) PowerShell
11 41 (5.72%) Scala
12 36 (5.02%) Shell Script
13 32 (4.46%) T-SQL
14 30 (4.18%) C++
15 28 (3.91%) XPath
16 26 (3.63%) Bash Shell
17 25 (3.49%) PHP
18 20 (2.79%) VB.NET
19 19 (2.65%) Ruby
20 13 (1.81%) C
Qualifications
1 110 (15.34%) Security Cleared
2 98 (13.67%) SC Cleared
3 24 (3.35%) Degree
4 15 (2.09%) ISTQB
4 15 (2.09%) ISTQB Foundation Certification
5 14 (1.95%) ISEB
6 13 (1.81%) Computer Science Degree
7 9 (1.26%) AWS Certification
8 8 (1.12%) TOGAF Certification
9 4 (0.56%) Cisco Certification
9 4 (0.56%) SANS
10 3 (0.42%) CISM
10 3 (0.42%) CISSP
10 3 (0.42%) DV Cleared
10 3 (0.42%) GIAC
10 3 (0.42%) Master's Degree
11 2 (0.28%) CCIE
11 2 (0.28%) CCNP
11 2 (0.28%) VCP6
11 2 (0.28%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 50 (6.97%) QA
2 16 (2.23%) GDPR
3 6 (0.84%) OASIS TOSCA
3 6 (0.84%) WCAG
4 3 (0.42%) HIPAA
4 3 (0.42%) ISO 20022
4 3 (0.42%) PCI DSS
4 3 (0.42%) RMADS
4 3 (0.42%) Sarbanes-Oxley
4 3 (0.42%) SLA
5 2 (0.28%) HL7
5 2 (0.28%) SEPA
5 2 (0.28%) TARGET2
6 1 (0.14%) ISO/IEC 27001
6 1 (0.14%) NIST
6 1 (0.14%) NIST 800
6 1 (0.14%) PMO
System Software
1 101 (14.09%) Docker
2 18 (2.51%) HDFS
3 8 (1.12%) VMware ESXi
4 7 (0.98%) LXC
5 6 (0.84%) Active Directory
5 6 (0.84%) KVM
6 5 (0.70%) VMware Infrastructure
6 5 (0.70%) VMware NSX
7 3 (0.42%) Apache ZooKeeper
8 2 (0.28%) Firmware
8 2 (0.28%) vSphere
9 1 (0.14%) NFS
9 1 (0.14%) Virtual Machines
Systems Management
1 79 (11.02%) Kubernetes
2 66 (9.21%) Ansible
3 37 (5.16%) Terraform
4 23 (3.21%) Grafana
5 16 (2.23%) Puppet
6 12 (1.67%) Docker Swarm
6 12 (1.67%) Prometheus
7 11 (1.53%) Kibana
8 6 (0.84%) Cloudify
8 6 (0.84%) Juju
8 6 (0.84%) Rancher
9 5 (0.70%) Hadoop YARN
10 4 (0.56%) Mesos
10 4 (0.56%) Opscode Chef
10 4 (0.56%) Packer
10 4 (0.56%) Single Sign-On
11 3 (0.42%) Consul
11 3 (0.42%) Forum Sentry
11 3 (0.42%) Oozie
11 3 (0.42%) PingFederate
Vendors
1 129 (17.99%) Oracle
2 85 (11.85%) Microsoft
3 64 (8.93%) Splunk
4 57 (7.95%) SAP
5 56 (7.81%) Red Hat
6 53 (7.39%) AppDynamics
7 44 (6.14%) webMethods
8 33 (4.60%) Google
8 33 (4.60%) MuleSoft
9 24 (3.35%) Adobe
10 22 (3.07%) WSO2
11 21 (2.93%) Salesforce.com
12 20 (2.79%) Axway
12 20 (2.79%) BEA
13 19 (2.65%) Dell
13 19 (2.65%) TIBCO
14 17 (2.37%) Cisco
14 17 (2.37%) F5
14 17 (2.37%) Informatica
14 17 (2.37%) Talend