Period
to 15 June 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 15 June 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
15 Jun 2021
Same period 2020 Same period 2019
Rank 133 147 102
Rank change year-on-year +14 -45 +10
Contract jobs citing JSON 978 718 2,029
As % of all contract jobs advertised in England 1.99% 1.84% 2.45%
As % of the Libraries, Frameworks & Software Standards category 6.56% 5.97% 7.53%
Number of daily rates quoted 645 442 1,304
10th Percentile £350 £350 £350
25th Percentile £413 £413 £413
Median daily rate (50th Percentile) £495 £500 £500
Median % change year-on-year -1.00% - +5.26%
75th Percentile £570 £575 £575
90th Percentile £688 £625 £638
UK median daily rate £495 £475 £500
% change year-on-year +4.21% -5.00% +5.26%
Number of hourly rates quoted 32 8 23
10th Percentile £25.50 £42.63 £52.50
25th Percentile £50.54 £48.81 £55.00
Median hourly rate £60.50 £55.50 £60.00
Median % change year-on-year +9.01% -7.50% +33.33%
75th Percentile £65.66 £68.75 "
90th Percentile £72.50 £69.13 £122.50
UK median hourly rate £60.50 £55.50 £60.00
% change year-on-year +9.01% -7.50% +33.33%

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 14,903 12,036 26,952
As % of all contract IT jobs advertised in England 30.40% 30.86% 32.55%
Number of daily rates quoted 10,721 8,653 19,270
10th Percentile £350 £338 £341
25th Percentile £413 £413 £410
Median daily rate (50th Percentile) £500 £500 £500
75th Percentile £603 £600 £575
90th Percentile £700 £675 £650
UK median daily rate £500 £500 £490
% change year-on-year - +2.04% +4.26%
Number of hourly rates quoted 150 102 231
10th Percentile £22.02 £20.53 £17.25
25th Percentile £31.25 £31.63 £30.64
Median hourly rate £45.00 £46.46 £45.00
Median % change year-on-year -3.14% +3.24% +7.14%
75th Percentile £57.50 £57.50 £53.75
90th Percentile £65.59 £66.00 £60.00
UK median hourly rate £45.00 £46.00 £44.92
% change year-on-year -2.17% +2.42% +7.54%

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 15 June 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 15 June 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 15 June 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 +12 516 £500 -0.99% 153
South East +54 131 £440 -7.37% 52
North of England +20 113 £428 -0.58% 76
Midlands -9 72 £400 -8.05% 48
West Midlands +12 66 £394 -7.35% 32
North West +16 54 £444 +2.90% 44
South West -17 45 £425 -19.05% 32
East of England +19 44 £530 +0.95% 27
Yorkshire +4 41 £428 -14.50% 28
North East +17 18 £519 +23.88% 4
East Midlands -19 6 £425 -15.00% 16
JSON
UK

For the 6 months to 15 June 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.

1 438 (44.79%) XML
2 431 (44.07%) Agile Software Development
3 329 (33.64%) Java
4 321 (32.82%) SQL
5 304 (31.08%) Git (software)
6 287 (29.35%) REST
7 284 (29.04%) Azure
8 269 (27.51%) JavaScript
9 247 (25.26%) Jenkins
10 216 (22.09%) DevOps
11 210 (21.47%) HTML
11 210 (21.47%) Web Services
12 206 (21.06%) Social Skills
13 202 (20.65%) Python
14 196 (20.04%) Finance
15 193 (19.73%) AWS
16 181 (18.51%) RESTful
17 171 (17.48%) SOAP
18 170 (17.38%) Microservices
19 167 (17.08%) JIRA
20 161 (16.46%) Linux
20 161 (16.46%) Test Automation
21 155 (15.85%) CSS
22 148 (15.13%) Oracle
23 145 (14.83%) C#
24 139 (14.21%) Windows
24 139 (14.21%) Spring
25 133 (13.60%) Docker
26 125 (12.78%) .NET
27 124 (12.68%) TDD

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 97 (9.92%) Confluence
2 42 (4.29%) Apache Spark
3 36 (3.68%) WebLogic
4 26 (2.66%) Apache
5 25 (2.56%) OpenStack
6 23 (2.35%) Elasticsearch
7 22 (2.25%) CMS
8 18 (1.84%) Tomcat
9 14 (1.43%) SharePoint
10 11 (1.12%) Jadu
11 8 (0.82%) Anypoint
11 8 (0.82%) Apache Airflow
11 8 (0.82%) BizTalk Server
11 8 (0.82%) JBoss
11 8 (0.82%) Mule
11 8 (0.82%) WordPress
12 7 (0.72%) IIS
12 7 (0.72%) Oracle Workflow
12 7 (0.72%) WebSphere
13 6 (0.61%) Adobe Experience Manager
Applications
1 22 (2.25%) Chatbot
2 9 (0.92%) Photoshop
3 8 (0.82%) Microsoft Office
4 7 (0.72%) Adobe Creative Suite
4 7 (0.72%) InVision
4 7 (0.72%) Sketch
5 5 (0.51%) Microsoft Excel
6 4 (0.41%) MS Visio
7 3 (0.31%) Microsoft PowerPoint
8 1 (0.10%) Microsoft Project
8 1 (0.10%) Mingle
Business Applications
1 13 (1.33%) Sparx Enterprise Architect
2 12 (1.23%) SAP FI-CA
2 12 (1.23%) SAP PSCD
3 11 (1.12%) Magento
4 6 (0.61%) Oracle ERP
4 6 (0.61%) SunGard Martini
5 5 (0.51%) Dynamics CRM
6 4 (0.41%) Distributed Ledger
7 3 (0.31%) Summit
8 1 (0.10%) BusinessWorks
8 1 (0.10%) Endur
8 1 (0.10%) Oracle Applications
8 1 (0.10%) Oracle BPM
8 1 (0.10%) Oracle Cash Management
8 1 (0.10%) Salesforce.com CRM
8 1 (0.10%) SAP Hybris
8 1 (0.10%) Tesseract
8 1 (0.10%) Workday HCM
Cloud Services
1 284 (29.04%) Azure
2 193 (19.73%) AWS
3 123 (12.58%) GitHub
4 58 (5.93%) PaaS
5 57 (5.83%) IaaS
6 54 (5.52%) Power Platform
6 54 (5.52%) Serverless
7 48 (4.91%) Amazon S3
7 48 (4.91%) GCP
8 40 (4.09%) AWS Lambda
9 39 (3.99%) Azure Logic Apps
10 35 (3.58%) SaaS
11 30 (3.07%) Azure Data Factory
11 30 (3.07%) Azure Service Bus
12 29 (2.97%) OpenShift
13 28 (2.86%) Google Analytics
14 26 (2.66%) PowerApps
15 25 (2.56%) Amazon EC2
16 24 (2.45%) AWS CloudFormation
16 24 (2.45%) Azure Storage
Communications & Networking
1 68 (6.95%) HTTP
2 25 (2.56%) LAN
3 24 (2.45%) Software-Defined Networking
4 23 (2.35%) Internet
5 22 (2.25%) 3GPP
5 22 (2.25%) SGSN
6 21 (2.15%) DNS
6 21 (2.15%) TCP/IP
6 21 (2.15%) VSAN
7 13 (1.33%) Firewall
7 13 (1.33%) HTTPS
8 10 (1.02%) Remote Desktop
8 10 (1.02%) WAN
9 9 (0.92%) FTP
9 9 (0.92%) SNMP
9 9 (0.92%) SSH
10 8 (0.82%) RTMP
11 7 (0.72%) SSL
12 5 (0.51%) Ethernet
12 5 (0.51%) Wi-Fi
Database & Business Intelligence
1 112 (11.45%) SQL Server
2 109 (11.15%) Relational Database
3 68 (6.95%) PostgreSQL
4 64 (6.54%) NoSQL
5 55 (5.62%) Data Warehouse
6 51 (5.21%) Oracle Database
7 47 (4.81%) MySQL
8 42 (4.29%) MongoDB
9 40 (4.09%) RDBMS
10 38 (3.89%) SQL Server Integration Services
11 36 (3.68%) Big Data
12 35 (3.58%) Hadoop
13 33 (3.37%) Power BI
14 26 (2.66%) Azure SQL Database
15 25 (2.56%) Tableau
16 24 (2.45%) Data Lake
17 22 (2.25%) Apache Hive
18 21 (2.15%) Amazon RDS
19 19 (1.94%) Oracle Database 12c
19 19 (1.94%) Star Schema
Development Applications
1 304 (31.08%) Git (software)
2 247 (25.26%) Jenkins
3 167 (17.08%) JIRA
4 114 (11.66%) Maven
5 87 (8.90%) JUnit
6 53 (5.42%) Sonatype Nexus
7 48 (4.91%) Cucumber
7 48 (4.91%) Selenium
8 44 (4.50%) Visual Studio
9 40 (4.09%) Subversion
10 39 (3.99%) Xcode
11 36 (3.68%) Bitbucket
12 32 (3.27%) Postman
13 31 (3.17%) SoapUI
14 29 (2.97%) Gradle
15 26 (2.66%) Eclipse
16 25 (2.56%) TeamCity
17 24 (2.45%) Android Studio
17 24 (2.45%) IntelliJ
18 23 (2.35%) Artifactory
General
1 206 (21.06%) Social Skills
2 196 (20.04%) Finance
3 73 (7.46%) Banking
4 56 (5.73%) Public Sector
5 55 (5.62%) Analytical Skills
6 36 (3.68%) Telecoms
7 30 (3.07%) Documentation Skills
8 27 (2.76%) Manufacturing
9 21 (2.15%) Marketing
10 20 (2.04%) Influencing Skills
11 16 (1.64%) Investment Banking
12 14 (1.43%) Law
13 11 (1.12%) Retail
14 10 (1.02%) Electronics
15 9 (0.92%) Local Government
15 9 (0.92%) Presentation Skills
16 8 (0.82%) Back Office
16 8 (0.82%) Legal
17 7 (0.72%) Front Office
18 6 (0.61%) Publishing
Job Titles
1 438 (44.79%) Developer
2 107 (10.94%) Architect
3 84 (8.59%) Java Developer
4 72 (7.36%) Senior Developer
5 60 (6.13%) Analyst
6 55 (5.62%) DevOps Engineer
7 50 (5.11%) Data Engineer
8 46 (4.70%) Front End Developer (Client-Side Developer)
9 42 (4.29%) iOS Developer
10 38 (3.89%) Cloud Engineer
11 36 (3.68%) Android Developer
12 35 (3.58%) Azure Engineer
13 31 (3.17%) .NET Developer
13 31 (3.17%) C# Developer
14 30 (3.07%) Solutions Architect
15 27 (2.76%) Full Stack Developer
16 25 (2.56%) Consultant
17 24 (2.45%) Software Engineer
18 23 (2.35%) Python Developer
18 23 (2.35%) React Developer
Libraries, Frameworks & Software Standards
1 438 (44.79%) XML
2 287 (29.35%) REST
3 210 (21.47%) HTML
3 210 (21.47%) Web Services
4 181 (18.51%) RESTful
5 171 (17.48%) SOAP
6 155 (15.85%) CSS
7 139 (14.21%) Spring
8 125 (12.78%) .NET
9 109 (11.15%) Node.js
9 109 (11.15%) YAML
10 91 (9.30%) React
11 79 (8.08%) Spring Boot
12 78 (7.98%) AngularJS
13 68 (6.95%) HTML5
14 63 (6.44%) jQuery
15 53 (5.42%) J2EE
16 49 (5.01%) .NET Core
17 48 (4.91%) Kafka
18 46 (4.70%) CSS3
Miscellaneous
1 68 (6.95%) User Experience
2 47 (4.81%) Data Centre
3 44 (4.50%) Mobile App
4 33 (3.37%) Cloud Native
5 30 (3.07%) Public Cloud
6 25 (2.56%) Client/Server
6 25 (2.56%) Derivative
7 22 (2.25%) Data Structures
8 19 (1.94%) Animation
8 19 (1.94%) Linux Command Line
8 19 (1.94%) Reference Data
9 17 (1.74%) Enterprise Software
9 17 (1.74%) iPhone
10 16 (1.64%) iPad
11 15 (1.53%) Replication
12 13 (1.33%) Data Protection Act
12 13 (1.33%) Self-Motivation
13 12 (1.23%) Management Information System
14 11 (1.12%) Greenfield Project
14 11 (1.12%) W3C
Operating Systems
1 161 (16.46%) Linux
2 139 (14.21%) Windows
3 90 (9.20%) Unix
4 58 (5.93%) Apple iOS
5 51 (5.21%) Android
6 18 (1.84%) Windows Server
7 13 (1.33%) CentOS
8 11 (1.12%) Red Hat Enterprise Linux
9 10 (1.02%) Mac OS
10 7 (0.72%) Mac OS X
10 7 (0.72%) Ubuntu
11 4 (0.41%) Windows 10
11 4 (0.41%) Windows Server 2012
11 4 (0.41%) Windows Server 2016
12 3 (0.31%) VMS
13 2 (0.20%) Solaris
13 2 (0.20%) Windows Server 2019
14 1 (0.10%) AIX
14 1 (0.10%) CoreOS
14 1 (0.10%) Embedded Linux
Processes & Methodologies
1 431 (44.07%) Agile Software Development
2 216 (22.09%) DevOps
3 170 (17.38%) Microservices
4 161 (16.46%) Test Automation
5 124 (12.68%) TDD
6 112 (11.45%) Scrum
7 104 (10.63%) Continuous Integration
8 99 (10.12%) Data Modelling
9 95 (9.71%) MVC
10 93 (9.51%) Problem-Solving
11 84 (8.59%) Business Intelligence
12 80 (8.18%) Analytics
12 80 (8.18%) OO
13 75 (7.67%) SOA
14 74 (7.57%) Software Engineering
15 66 (6.75%) Front End Development
16 64 (6.54%) SDLC
17 62 (6.34%) Unit Testing
18 59 (6.03%) Migration
19 58 (5.93%) BDD
Programming Languages
1 329 (33.64%) Java
2 321 (32.82%) SQL
3 269 (27.51%) JavaScript
4 202 (20.65%) Python
5 145 (14.83%) C#
6 102 (10.43%) PowerShell
7 81 (8.28%) Java 8
8 78 (7.98%) PL/SQL
9 66 (6.75%) C++
10 48 (4.91%) Bash Shell
11 47 (4.81%) Apple Swift
12 46 (4.70%) Shell Script
13 44 (4.50%) PHP
14 43 (4.40%) Kotlin
15 41 (4.19%) TypeScript
16 40 (4.09%) Scala
17 31 (3.17%) T-SQL
18 30 (3.07%) Objective-C
19 29 (2.97%) C
20 18 (1.84%) VB.NET
Qualifications
1 124 (12.68%) Security Cleared
2 105 (10.74%) SC Cleared
3 42 (4.29%) Degree
4 19 (1.94%) Computer Science Degree
5 15 (1.53%) ISEB
5 15 (1.53%) ISTQB
6 14 (1.43%) ISTQB Foundation Certification
7 9 (0.92%) DV Cleared
8 7 (0.72%) Master's Degree
9 4 (0.41%) AWS Certification
10 2 (0.20%) BPSS Clearance
10 2 (0.20%) Cisco Certification
10 2 (0.20%) ITIL Certification
10 2 (0.20%) Numerate Degree
11 1 (0.10%) CCIE
11 1 (0.10%) CISM
11 1 (0.10%) CISSP
11 1 (0.10%) CITP
11 1 (0.10%) Postgraduate
11 1 (0.10%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 67 (6.85%) QA
2 38 (3.89%) Accessibility
3 22 (2.25%) OASIS TOSCA
4 13 (1.33%) GDPR
5 10 (1.02%) Data Quality
6 9 (0.92%) WCAG
7 8 (0.82%) HL7
8 2 (0.20%) Actionable Recommendations
8 2 (0.20%) ISO 20022
8 2 (0.20%) ISO 9000
8 2 (0.20%) TARGET2
9 1 (0.10%) Disclosure Scotland
9 1 (0.10%) HIPAA
9 1 (0.10%) PCI DSS
9 1 (0.10%) PSD2
9 1 (0.10%) RMADS
9 1 (0.10%) Sarbanes-Oxley
9 1 (0.10%) SEPA
9 1 (0.10%) SNOMED CT
System Software
1 133 (13.60%) Docker
2 38 (3.89%) VMware Infrastructure
3 33 (3.37%) VMware ESXi
4 31 (3.17%) Active Directory
5 22 (2.25%) KVM
5 22 (2.25%) LXC
6 15 (1.53%) vSphere
7 14 (1.43%) HDFS
8 13 (1.33%) Virtual Machines
9 11 (1.12%) Hyper-V
9 11 (1.12%) VMware NSX
10 3 (0.31%) Apache ZooKeeper
10 3 (0.31%) Firmware
11 2 (0.20%) NFS
12 1 (0.10%) RHEV
12 1 (0.10%) Virtual Desktop
12 1 (0.10%) Virtual Servers
12 1 (0.10%) VirtualBox
12 1 (0.10%) VMware Workstation
Systems Management
1 117 (11.96%) Ansible
2 99 (10.12%) Kubernetes
3 55 (5.62%) Terraform
4 37 (3.78%) Puppet
5 35 (3.58%) Grafana
6 28 (2.86%) Opscode Chef
6 28 (2.86%) Prometheus
7 24 (2.45%) vRealize
8 23 (2.35%) Docker Swarm
9 22 (2.25%) Cloudify
9 22 (2.25%) Juju
10 14 (1.43%) vCenter Server
11 10 (1.02%) Istio
11 10 (1.02%) PowerCLI
11 10 (1.02%) SCVMM
12 9 (0.92%) Kibana
13 6 (0.61%) BladeLogic
14 5 (0.51%) Fluentd
14 5 (0.51%) Rancher
15 4 (0.41%) Nagios
Vendors
1 148 (15.13%) Oracle
2 113 (11.55%) Microsoft
3 53 (5.42%) VMware
4 47 (4.81%) Red Hat
5 46 (4.70%) Google
6 42 (4.29%) SAP
7 38 (3.89%) Informatica
8 33 (3.37%) Cisco
8 33 (3.37%) Dell
9 31 (3.17%) webMethods
10 28 (2.86%) Splunk
11 26 (2.66%) BEA
11 26 (2.66%) HP
11 26 (2.66%) WSO2
12 25 (2.56%) Salesforce.com
13 23 (2.35%) Adobe
13 23 (2.35%) MuleSoft
14 22 (2.25%) Ericsson
14 22 (2.25%) Juniper
14 22 (2.25%) Mirantis