Period
to 21 October 2020

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 21 October 2020 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
21 Oct 2020
Same period 2019 Same period 2018
Rank 112 113 112
Rank change year-on-year +1 -1 -17
Contract jobs citing JSON 679 1,892 2,411
As % of all contract jobs advertised in the UK 2.14% 2.23% 2.36%
As % of the Libraries, Frameworks & Software Standards category 6.93% 7.20% 6.75%
Number of daily rates quoted 530 1,207 1,670
Median daily rate £450 £488 £475
Median daily rate % change year-on-year -7.69% +2.63% +5.56%
10th Percentile £325 £348 £350
90th Percentile £600 £638 £613
UK excluding London median daily rate £450 £450 £450
Number of hourly rates quoted 23 22 12
Median hourly rate £35.00 £53.75 £35.00
Median hourly rate % change year-on-year -34.88% +53.57% -22.22%
UK excluding London median hourly rate £35.00 £52.25 £35.00
% change year-on-year -33.01% +49.29% -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 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 9,795 26,280 35,738
As % of all contract IT jobs advertised in the UK 30.91% 30.93% 34.92%
Number of daily rates quoted 6,493 18,270 25,155
Median daily rate £488 £500 £475
Median daily rate % change year-on-year -2.50% +5.26% +5.56%
10th Percentile £313 £338 £325
90th Percentile £675 £650 £638
UK excluding London median daily rate £439 £438 £425
% change year-on-year +0.26% +2.94% +6.25%
Number of hourly rates quoted 142 282 318
Median hourly rate £35.00 £43.50 £41.57
Median hourly rate % change year-on-year -19.54% +4.64% +3.93%
10th Percentile £25.26 £20.29 £15.60
90th Percentile £61.25 £69.75 £59.13
Median hourly rate £35.00 £42.50 £41.25
% change year-on-year -17.65% +3.03% +2.34%

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 21 October 2020.

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 21 October 2020.

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 21 October 2020. 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
England -3 572 £488 -2.40% 272
UK excluding London +27 361 £450 - 199
London -30 254 £520 -0.95% 102
Work from Home +4 174 £450 -5.26% 53
North of England +62 111 £443 -8.76% 47
Midlands +28 88 £435 -8.42% 39
West Midlands +23 69 £435 -10.77% 24
Yorkshire +48 68 £450 -10.00% 14
South East +7 47 £450 - 41
South West +38 41 £525 +16.67% 28
Northern Ireland +36 40 £450 - 1
North West +62 36 £425 -9.33% 28
Scotland -18 23 £425 -5.56% 19
East Midlands +48 19 £520 +30.00% 15
East of England +54 12 £475 +2.70% 15
North East +14 7 £413 - 5
Wales +19 2 £463 +11.45% 11

For the 6 months to 21 October 2020, 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.

1 323 (47.57%) Agile Software Development
2 309 (45.51%) Java
3 288 (42.42%) XML
4 253 (37.26%) REST
5 225 (33.14%) JavaScript
6 214 (31.52%) Git (software)
7 197 (29.01%) Jenkins
8 172 (25.33%) SQL
9 170 (25.04%) Web Services
10 162 (23.86%) DevOps
11 156 (22.97%) HTML
12 152 (22.39%) RESTful
13 146 (21.50%) SOAP
13 146 (21.50%) JIRA
14 145 (21.35%) Node.js
15 143 (21.06%) Test Automation
15 143 (21.06%) Scrum
16 140 (20.62%) Microservices
17 138 (20.32%) Azure
18 134 (19.73%) AWS
19 131 (19.29%) CSS
20 127 (18.70%) Security Cleared
21 124 (18.26%) Spring
21 124 (18.26%) Oracle
22 121 (17.82%) Python
23 116 (17.08%) SC Cleared
24 112 (16.49%) Continuous Integration
24 112 (16.49%) Finance
25 108 (15.91%) Confluence
26 107 (15.76%) Maven

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
1 108 (15.91%) Confluence
2 79 (11.63%) Mule
3 53 (7.81%) WebLogic
4 51 (7.51%) Red Hat Fuse
5 39 (5.74%) Cloud Foundry
6 34 (5.01%) Oracle SOA Suite
6 34 (5.01%) Tomcat
7 29 (4.27%) JBoss
8 28 (4.12%) Apache
9 22 (3.24%) WebSphere
10 21 (3.09%) Oracle Service Bus
11 20 (2.95%) Elasticsearch
12 17 (2.50%) Apache Spark
13 12 (1.77%) IIS
14 11 (1.62%) MQSeries
15 10 (1.47%) nginx
16 8 (1.18%) SharePoint
17 7 (1.03%) Apache ServiceMix
17 7 (1.03%) BizTalk Server
17 7 (1.03%) OpenStack
Applications
1 23 (3.39%) Microsoft Office
2 18 (2.65%) Microsoft Excel
3 8 (1.18%) Photoshop
4 6 (0.88%) MS Visio
5 5 (0.74%) Chatbot
5 5 (0.74%) Figma
6 4 (0.59%) Adobe Illustrator
6 4 (0.59%) Microsoft PowerPoint
6 4 (0.59%) Sketch
6 4 (0.59%) Zeplin
7 3 (0.44%) Adobe XD
8 2 (0.29%) Spreadsheet
9 1 (0.15%) GIMP
Business Applications
1 15 (2.21%) Dynamics CRM
2 12 (1.77%) SAP FI-CA
3 7 (1.03%) Dynamics AX
3 7 (1.03%) Oracle ERP
3 7 (1.03%) Sparx Enterprise Architect
4 4 (0.59%) Dynamics NAV
4 4 (0.59%) Oracle Applications
5 3 (0.44%) SAP Hybris
6 2 (0.29%) Oracle BPM
6 2 (0.29%) Payment Gateway
6 2 (0.29%) Siebel CRM
7 1 (0.15%) BusinessWorks
7 1 (0.15%) Magento
7 1 (0.15%) Maximo
7 1 (0.15%) Oracle EBS
7 1 (0.15%) SAP ERP
7 1 (0.15%) SAP PSCD
7 1 (0.15%) SAP S/4HANA
Cloud Services
1 138 (20.32%) Azure
2 134 (19.73%) AWS
3 96 (14.14%) GitHub
4 58 (8.54%) Slack
5 49 (7.22%) PaaS
6 40 (5.89%) IaaS
7 36 (5.30%) Power Platform
8 28 (4.12%) GCP
9 27 (3.98%) Amazon S3
10 26 (3.83%) SaaS
11 23 (3.39%) Serverless
12 21 (3.09%) Apigee
13 20 (2.95%) Logic Apps
13 20 (2.95%) npm
14 15 (2.21%) Amazon CloudWatch
15 14 (2.06%) Amazon EC2
15 14 (2.06%) PowerApps
16 13 (1.91%) AWS Lambda
17 12 (1.77%) Azure Data Factory
18 11 (1.62%) Boomi
Communications & Networking
1 74 (10.90%) HTTP
2 26 (3.83%) SSL
3 23 (3.39%) DNS
4 21 (3.09%) TCP/IP
5 14 (2.06%) Firewall
5 14 (2.06%) Reverse Proxy
6 13 (1.91%) Internet
7 11 (1.62%) F5 BIG-IP GTM
8 10 (1.47%) Remote Desktop
9 8 (1.18%) SSH
10 7 (1.03%) Ethernet
10 7 (1.03%) FTP
10 7 (1.03%) LAN
10 7 (1.03%) Network Security
10 7 (1.03%) WAN
11 5 (0.74%) DKIM
11 5 (0.74%) Software-Defined Networking
12 4 (0.59%) DSL
12 4 (0.59%) SDH
12 4 (0.59%) SONET
Database & Business Intelligence
1 97 (14.29%) SQL Server
2 62 (9.13%) PostgreSQL
3 58 (8.54%) MongoDB
4 55 (8.10%) Relational Database
5 45 (6.63%) MySQL
6 39 (5.74%) Oracle Database
7 34 (5.01%) Hadoop
8 29 (4.27%) Power BI
9 27 (3.98%) NoSQL
10 26 (3.83%) Data Warehouse
11 21 (3.09%) SQL Server Integration Services
12 20 (2.95%) Amazon DynamoDB
13 19 (2.80%) Big Data
14 18 (2.65%) Azure SQL Database
14 18 (2.65%) RDBMS
15 15 (2.21%) Apache Hive
15 15 (2.21%) Oracle Reports
16 14 (2.06%) SQL Server Reporting Services
17 13 (1.91%) Cosmos DB
18 12 (1.77%) Data Lake
Development Applications
1 214 (31.52%) Git (software)
2 197 (29.01%) Jenkins
3 146 (21.50%) JIRA
4 107 (15.76%) Maven
5 83 (12.22%) JUnit
6 63 (9.28%) Sonatype Nexus
7 57 (8.39%) Selenium
8 51 (7.51%) Cucumber
8 51 (7.51%) Mockito
9 42 (6.19%) CocoaPods
9 42 (6.19%) Xcode
10 41 (6.04%) Android Studio
11 35 (5.15%) IntelliJ
12 29 (4.27%) SoapUI
13 28 (4.12%) Postman
14 26 (3.83%) JMeter
15 23 (3.39%) Gradle
16 19 (2.80%) Ant
16 19 (2.80%) Toad
17 18 (2.65%) Eclipse
General
1 112 (16.49%) Finance
2 102 (15.02%) Public Sector
3 57 (8.39%) Banking
4 43 (6.33%) Marketing
5 42 (6.19%) Manufacturing
6 41 (6.04%) Telecoms
7 37 (5.45%) Electronics
8 17 (2.50%) Retail
9 10 (1.47%) Pharmaceutical
10 8 (1.18%) Investment Banking
11 7 (1.03%) Law
12 6 (0.88%) Retail Banking
13 5 (0.74%) Financial Institution
14 4 (0.59%) Advertising
14 4 (0.59%) Police
15 3 (0.44%) Front Office
16 2 (0.29%) Games
16 2 (0.29%) Legal
17 1 (0.15%) Automotive
17 1 (0.15%) Publishing
Job Titles
1 334 (49.19%) Developer
2 93 (13.70%) Java Developer
3 89 (13.11%) Architect
4 55 (8.10%) Senior Developer
5 32 (4.71%) Senior Java Developer
6 26 (3.83%) Analyst
6 26 (3.83%) JavaScript Developer
6 26 (3.83%) Solutions Architect
7 25 (3.68%) Integration Developer
8 23 (3.39%) DevOps Engineer
9 21 (3.09%) Consultant
10 20 (2.95%) Data Engineer
10 20 (2.95%) iOS Developer
10 20 (2.95%) React Developer
11 19 (2.80%) Front End Developer (Client-Side Developer)
11 19 (2.80%) Lead Developer
12 18 (2.65%) Azure Engineer
13 17 (2.50%) Full Stack Developer
13 17 (2.50%) Senior Integration Developer
14 16 (2.36%) .NET Developer
Libraries, Frameworks & Software Standards
1 288 (42.42%) XML
2 253 (37.26%) REST
3 170 (25.04%) Web Services
4 156 (22.97%) HTML
5 152 (22.39%) RESTful
6 146 (21.50%) SOAP
7 145 (21.35%) Node.js
8 131 (19.29%) CSS
9 124 (18.26%) Spring
10 106 (15.61%) Spring Boot
11 83 (12.22%) React
12 78 (11.49%) .NET
13 66 (9.72%) Kafka
14 56 (8.25%) XSLT
15 55 (8.10%) Apache Camel
16 54 (7.95%) WireMock
17 53 (7.81%) HTML5
18 51 (7.51%) jQuery
19 49 (7.22%) Middleware
20 45 (6.63%) Swagger
Miscellaneous
1 89 (13.11%) Mobile App
2 59 (8.69%) User Experience
3 30 (4.42%) Enterprise Software
4 29 (4.27%) Analytical Skills
5 18 (2.65%) Data Structures
6 14 (2.06%) Data Centre
7 12 (1.77%) Management Information System
7 12 (1.77%) Public Cloud
8 10 (1.47%) CMDB
8 10 (1.47%) Linux Command Line
9 8 (1.18%) Greenfield Project
9 8 (1.18%) Virtual Team
10 7 (1.03%) Derivative
10 7 (1.03%) Mobile Payment
10 7 (1.03%) PKI
11 6 (0.88%) Private Cloud
11 6 (0.88%) Self-Motivation
12 5 (0.74%) Cloud Native
12 5 (0.74%) Video on Demand
12 5 (0.74%) Video\Live Streaming
Operating Systems
1 96 (14.14%) Linux
2 73 (10.75%) Android
3 68 (10.01%) Windows
4 64 (9.43%) Apple iOS
5 50 (7.36%) Unix
6 36 (5.30%) Red Hat Enterprise Linux
7 26 (3.83%) Windows Server
8 21 (3.09%) Windows Server 2012
9 10 (1.47%) Ubuntu
10 9 (1.33%) Mac OS X
11 6 (0.88%) Windows Server 2016
12 5 (0.74%) CentOS
12 5 (0.74%) Debian
13 4 (0.59%) Amazon Linux
13 4 (0.59%) Oracle Linux
14 2 (0.29%) VMS
14 2 (0.29%) Windows 10
14 2 (0.29%) Windows Server 2008
15 1 (0.15%) OpenVMS
15 1 (0.15%) Solaris
Processes & Methodologies
1 323 (47.57%) Agile Software Development
2 162 (23.86%) DevOps
3 143 (21.06%) Scrum
3 143 (21.06%) Test Automation
4 140 (20.62%) Microservices
5 112 (16.49%) Continuous Integration
6 102 (15.02%) Kanban
7 100 (14.73%) TDD
8 85 (12.52%) Business Intelligence
9 74 (10.90%) SOA
10 73 (10.75%) Continuous Delivery
11 62 (9.13%) Analytics
12 55 (8.10%) Unit Testing
13 51 (7.51%) Android Development
14 48 (7.07%) MVC
15 47 (6.92%) BDD
15 47 (6.92%) Migration
15 47 (6.92%) Pair Programming
16 46 (6.77%) OO
17 45 (6.63%) Data Modelling
Programming Languages
1 309 (45.51%) Java
2 225 (33.14%) JavaScript
3 172 (25.33%) SQL
4 121 (17.82%) Python
5 67 (9.87%) C#
6 59 (8.69%) Kotlin
7 57 (8.39%) PL/SQL
7 57 (8.39%) PowerShell
8 55 (8.10%) Java 8
9 50 (7.36%) Apple Swift
10 48 (7.07%) ES6
11 34 (5.01%) Scala
12 31 (4.57%) T-SQL
12 31 (4.57%) XPath
13 29 (4.27%) Bash Shell
14 24 (3.53%) Ruby
14 24 (3.53%) Shell Script
15 18 (2.65%) VB.NET
16 17 (2.50%) C++
17 16 (2.36%) PHP
Qualifications
1 127 (18.70%) Security Cleared
2 116 (17.08%) SC Cleared
3 23 (3.39%) Degree
4 16 (2.36%) ISTQB
5 15 (2.21%) ISTQB Foundation Certification
6 12 (1.77%) ISEB
7 9 (1.33%) Computer Science Degree
7 9 (1.33%) TOGAF Certification
8 7 (1.03%) AWS Certification
9 6 (0.88%) DV Cleared
10 4 (0.59%) BPSS Clearance
11 2 (0.29%) CCNP
11 2 (0.29%) Cisco Certification
11 2 (0.29%) SANS
12 1 (0.15%) CCDP
12 1 (0.15%) CCIE
12 1 (0.15%) CCNA
12 1 (0.15%) CISM
12 1 (0.15%) CISSP
12 1 (0.15%) GIAC
Quality Assurance & Compliance
1 41 (6.04%) QA
2 7 (1.03%) WCAG
3 6 (0.88%) OASIS TOSCA
4 4 (0.59%) GDPR
4 4 (0.59%) PMO
5 2 (0.29%) HIPAA
5 2 (0.29%) ISO 20022
6 1 (0.15%) Data Quality
6 1 (0.15%) Disclosure Scotland
6 1 (0.15%) HL7
6 1 (0.15%) ISO/IEC 27001
6 1 (0.15%) NIST
6 1 (0.15%) NIST 800
6 1 (0.15%) PCI DSS
6 1 (0.15%) PSD2
6 1 (0.15%) RMADS
6 1 (0.15%) Sarbanes-Oxley
6 1 (0.15%) SEPA
6 1 (0.15%) TARGET2
System Software
1 67 (9.87%) Docker
2 18 (2.65%) Active Directory
3 14 (2.06%) VMware Infrastructure
4 12 (1.77%) HDFS
5 9 (1.33%) Hyper-V
5 9 (1.33%) VMware ESXi
6 6 (0.88%) NFS
7 5 (0.74%) GeoWebCache
7 5 (0.74%) VMware NSX
7 5 (0.74%) VMware Workstation
7 5 (0.74%) vSphere
8 3 (0.44%) Apache Flume
8 3 (0.44%) LXC
8 3 (0.44%) Virtual Machines
9 2 (0.29%) KVM
9 2 (0.29%) XenApp
10 1 (0.15%) NDS
10 1 (0.15%) NetIQ eDirectory
Systems Management
1 45 (6.63%) Kubernetes
2 35 (5.15%) Ansible
3 23 (3.39%) Terraform
4 16 (2.36%) Kibana
5 11 (1.62%) Grafana
6 10 (1.47%) Rancher
7 8 (1.18%) Single Sign-On
8 7 (1.03%) Puppet
9 6 (0.88%) PingFederate
10 5 (0.74%) HP Quality Center
10 5 (0.74%) Salt
11 4 (0.59%) Opscode Chef
11 4 (0.59%) Oracle ZFS
11 4 (0.59%) Prometheus
12 3 (0.44%) Docker Swarm
12 3 (0.44%) FortiGate
12 3 (0.44%) Forum Sentry
12 3 (0.44%) SCCM
12 3 (0.44%) SCVMM
13 2 (0.29%) Juju
Vendors
1 124 (18.26%) Oracle
2 86 (12.67%) Microsoft
3 63 (9.28%) Splunk
4 57 (8.39%) SAP
5 54 (7.95%) AppDynamics
6 46 (6.77%) Red Hat
7 34 (5.01%) MuleSoft
8 29 (4.27%) F5
9 28 (4.12%) webMethods
9 28 (4.12%) WSO2
10 25 (3.68%) Adobe
10 25 (3.68%) Google
11 22 (3.24%) Talend
12 19 (2.80%) Informatica
13 18 (2.65%) Dell
14 17 (2.50%) Axway
15 16 (2.36%) Blue Coat
15 16 (2.36%) Salesforce.com
15 16 (2.36%) VMware
16 14 (2.06%) Databricks