Period
to 17 September 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 17 September 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
17 Sep 2021
Same period 2020 Same period 2019
Rank 147 133 112
Rank change year-on-year -14 -21 +3
Contract jobs citing JSON 1,144 524 1,808
As % of all contract jobs advertised in England 1.80% 1.99% 2.21%
As % of the Libraries, Frameworks & Software Standards category 6.07% 6.19% 7.00%
Number of daily rates quoted 741 321 1,172
10th Percentile £380 £331 £350
25th Percentile £430 £406 £413
Median daily rate (50th Percentile) £500 £475 £500
Median % change year-on-year +5.26% -5.00% +5.26%
75th Percentile £600 £550 £575
90th Percentile £713 £600 £659
UK median daily rate £500 £450 £496
% change year-on-year +11.11% -9.18% +5.43%
Number of hourly rates quoted 31 4 20
10th Percentile £26.00 £47.65 £48.03
25th Percentile £46.95 £47.88 £52.50
Median hourly rate £65.50 £51.75 £60.00
Median % change year-on-year +26.57% -13.75% +6.04%
75th Percentile £68.38 £54.25 £75.63
90th Percentile £73.45 £54.70 £122.50
UK median hourly rate £65.50 £51.75 £60.00
% change year-on-year +26.57% -13.75% +11.56%

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 18,851 8,460 25,847
As % of all contract IT jobs advertised in England 29.68% 32.12% 31.61%
Number of daily rates quoted 13,711 6,038 18,337
10th Percentile £363 £325 £342
25th Percentile £425 £413 £408
Median daily rate (50th Percentile) £525 £500 £500
Median % change year-on-year +5.00% - +5.26%
75th Percentile £625 £598 £575
90th Percentile £700 £688 £650
UK median daily rate £525 £500 £495
% change year-on-year +5.00% +1.01% +4.21%
Number of hourly rates quoted 193 70 225
10th Percentile £18.52 £21.20 £17.45
25th Percentile £31.25 £30.00 £27.50
Median hourly rate £49.00 £45.00 £45.50
Median % change year-on-year +8.89% -1.10% +8.84%
75th Percentile £63.00 £54.52 £53.75
90th Percentile £71.50 £63.23 £63.75
UK median hourly rate £49.00 £44.75 £45.00
% change year-on-year +9.50% -0.56% +8.36%

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 17 September 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 17 September 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 17 September 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 +22 626 £525 +5.00% 165
South East -7 138 £495 +9.36% 55
North of England -39 133 £470 +9.94% 64
Midlands -70 73 £450 +3.45% 43
North West -23 68 £480 +18.52% 38
West Midlands -49 66 £450 +4.17% 28
South West -39 53 £400 -23.81% 34
East of England -14 51 £500 -4.76% 19
Yorkshire -57 45 £475 - 16
North East +3 22 £425 +7.87% 10
East Midlands -49 6 £425 -15.00% 15
JSON
UK

For the 6 months to 17 September 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.

1 536 (46.85%) Agile Software Development
2 506 (44.23%) XML
3 400 (34.97%) SQL
4 391 (34.18%) Java
5 389 (34.00%) Git (software)
6 373 (32.60%) REST
7 334 (29.20%) Azure
8 331 (28.93%) JavaScript
9 320 (27.97%) Jenkins
10 316 (27.62%) DevOps
11 272 (23.78%) Python
12 258 (22.55%) Social Skills
13 255 (22.29%) HTML
14 230 (20.10%) SOAP
15 226 (19.76%) Web Services
16 217 (18.97%) Microservices
17 215 (18.79%) AWS
18 209 (18.27%) Oracle
19 206 (18.01%) Linux
20 205 (17.92%) Finance
21 199 (17.40%) RESTful
22 197 (17.22%) C#
23 194 (16.96%) CSS
24 191 (16.70%) Spring
25 189 (16.52%) Test Automation
26 179 (15.65%) GitHub
27 176 (15.38%) JIRA
27 176 (15.38%) .NET
28 174 (15.21%) Windows
29 171 (14.95%) Problem-Solving

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
1 105 (9.18%) Confluence
2 55 (4.81%) WebLogic
3 49 (4.28%) Apache
4 41 (3.58%) Apache Spark
5 33 (2.88%) Elasticsearch
6 29 (2.53%) CMS
6 29 (2.53%) Tomcat
7 19 (1.66%) JBoss
8 17 (1.49%) nginx
9 13 (1.14%) IIS
9 13 (1.14%) OpenStack
10 12 (1.05%) Apache Airflow
11 10 (0.87%) Headless CMS
12 9 (0.79%) Mule
12 9 (0.79%) Oracle SOA Suite
12 9 (0.79%) WordPress
13 8 (0.70%) BizTalk Server
13 8 (0.70%) WebSphere
14 7 (0.61%) Jetty
14 7 (0.61%) Oracle Workflow
Applications
1 21 (1.84%) Microsoft Excel
2 11 (0.96%) Chatbot
2 11 (0.96%) Microsoft Office
3 8 (0.70%) Adobe Creative Suite
3 8 (0.70%) InVision
3 8 (0.70%) Microsoft PowerPoint
3 8 (0.70%) Sketch
4 5 (0.44%) MS Visio
5 4 (0.35%) Microsoft Project
6 2 (0.17%) Mingle
6 2 (0.17%) Photoshop
7 1 (0.087%) Adobe XD
7 1 (0.087%) Spreadsheet
Business Applications
1 21 (1.84%) SunGard Martini
2 11 (0.96%) Magento
3 8 (0.70%) Dynamics CRM
3 8 (0.70%) Oracle ERP
4 6 (0.52%) SAP FI-CA
4 6 (0.52%) SAP PSCD
4 6 (0.52%) Sparx Enterprise Architect
5 5 (0.44%) Social Studio
6 2 (0.17%) SAP CRM
7 1 (0.087%) BusinessWorks
7 1 (0.087%) Distributed Ledger
7 1 (0.087%) Dynamics AX
7 1 (0.087%) Endur
7 1 (0.087%) NetSuite
7 1 (0.087%) Oracle BPM
7 1 (0.087%) Oracle Cash Management
7 1 (0.087%) Oracle Retail
7 1 (0.087%) Remedy ITSM
7 1 (0.087%) Tesseract
7 1 (0.087%) Workday HCM
Cloud Services
1 334 (29.20%) Azure
2 215 (18.79%) AWS
3 179 (15.65%) GitHub
4 71 (6.21%) Serverless
5 64 (5.59%) PaaS
6 62 (5.42%) IaaS
7 51 (4.46%) AWS Lambda
8 50 (4.37%) Power Platform
9 46 (4.02%) GCP
10 45 (3.93%) Azure Data Factory
11 43 (3.76%) Amazon S3
12 39 (3.41%) Azure Logic Apps
12 39 (3.41%) SaaS
13 35 (3.06%) OpenShift
14 32 (2.80%) Amazon EC2
15 31 (2.71%) AWS CloudFormation
16 30 (2.62%) Azure Service Bus
17 26 (2.27%) Azure Active Directory
17 26 (2.27%) Azure Cosmos DB
17 26 (2.27%) Azure Storage
Communications & Networking
1 88 (7.69%) HTTP
2 42 (3.67%) DNS
3 38 (3.32%) TCP/IP
4 37 (3.23%) Internet
5 26 (2.27%) LAN
6 23 (2.01%) FTP
7 22 (1.92%) SSL
8 21 (1.84%) VSAN
9 19 (1.66%) Firewall
10 17 (1.49%) WAN
11 15 (1.31%) Software-Defined Networking
12 13 (1.14%) 3GPP
12 13 (1.14%) SGSN
13 11 (0.96%) SSH
14 9 (0.79%) SNMP
15 8 (0.70%) DHCP
15 8 (0.70%) Remote Desktop
15 8 (0.70%) VPN
16 7 (0.61%) Intranet
16 7 (0.61%) RTMP
Database & Business Intelligence
1 148 (12.94%) SQL Server
2 121 (10.58%) Relational Database
3 99 (8.65%) NoSQL
4 72 (6.29%) Oracle Database
5 70 (6.12%) PostgreSQL
6 60 (5.24%) Data Warehouse
7 59 (5.16%) MySQL
8 55 (4.81%) MongoDB
9 52 (4.55%) SQL Server Integration Services
10 50 (4.37%) Data Lake
11 42 (3.67%) Big Data
11 42 (3.67%) Power BI
12 33 (2.88%) Hadoop
13 31 (2.71%) BusinessObjects
13 31 (2.71%) Oracle Database 12c
14 29 (2.53%) Metadata
14 29 (2.53%) RDBMS
15 25 (2.19%) Azure SQL Database
15 25 (2.19%) Parquet
16 22 (1.92%) Tableau
Development Applications
1 389 (34.00%) Git (software)
2 320 (27.97%) Jenkins
3 176 (15.38%) JIRA
4 149 (13.02%) Maven
5 88 (7.69%) JUnit
6 68 (5.94%) Visual Studio
7 63 (5.51%) Subversion
8 60 (5.24%) Bitbucket
9 55 (4.81%) Selenium
10 54 (4.72%) Cucumber
11 51 (4.46%) Sonatype Nexus
12 49 (4.28%) Postman
13 41 (3.58%) TeamCity
14 38 (3.32%) Artifactory
15 36 (3.15%) Gradle
16 32 (2.80%) Xcode
17 31 (2.71%) Oracle APEX
17 31 (2.71%) SoapUI
18 30 (2.62%) Android Studio
19 25 (2.19%) Robot Framework
General
1 258 (22.55%) Social Skills
2 205 (17.92%) Finance
3 99 (8.65%) Banking
4 75 (6.56%) Analytical Skills
5 59 (5.16%) Public Sector
6 39 (3.41%) Documentation Skills
7 34 (2.97%) Investment Banking
8 27 (2.36%) Front Office
9 24 (2.10%) Manufacturing
9 24 (2.10%) Telecoms
10 23 (2.01%) Marketing
11 22 (1.92%) Influencing Skills
11 22 (1.92%) Presentation Skills
12 20 (1.75%) Retail
13 14 (1.22%) Back Office
14 8 (0.70%) Advertising
14 8 (0.70%) Retail Banking
15 7 (0.61%) Military
16 6 (0.52%) Inclusion and Diversity
16 6 (0.52%) Police
Job Titles
1 585 (51.14%) Developer
2 129 (11.28%) Java Developer
3 93 (8.13%) Architect
4 92 (8.04%) Senior Developer
5 58 (5.07%) DevOps Engineer
6 53 (4.63%) Analyst
6 53 (4.63%) Data Engineer
7 47 (4.11%) Front End Developer (Client-Side Developer)
8 41 (3.58%) Android Developer
9 39 (3.41%) Azure Engineer
10 38 (3.32%) .NET Developer
11 37 (3.23%) Full Stack Developer
12 36 (3.15%) iOS Developer
13 32 (2.80%) Cloud Engineer
14 31 (2.71%) Solutions Architect
15 30 (2.62%) C# Developer
16 28 (2.45%) Azure Developer
17 27 (2.36%) Python Developer
18 26 (2.27%) Software Engineer
19 25 (2.19%) Lead Developer
Libraries, Frameworks & Software Standards
1 506 (44.23%) XML
2 373 (32.60%) REST
3 255 (22.29%) HTML
4 230 (20.10%) SOAP
5 226 (19.76%) Web Services
6 199 (17.40%) RESTful
7 194 (16.96%) CSS
8 191 (16.70%) Spring
9 176 (15.38%) .NET
10 153 (13.37%) Node.js
11 130 (11.36%) Spring Boot
12 122 (10.66%) React
13 118 (10.31%) AngularJS
14 113 (9.88%) YAML
15 84 (7.34%) HTML5
16 71 (6.21%) .NET Core
17 67 (5.86%) .NET Framework
18 65 (5.68%) J2EE
18 65 (5.68%) jQuery
19 59 (5.16%) Kafka
Miscellaneous
1 64 (5.59%) User Experience
2 50 (4.37%) Mobile App
3 45 (3.93%) Data Centre
4 42 (3.67%) Public Cloud
5 37 (3.23%) Cloud Native
6 35 (3.06%) Data Structures
7 26 (2.27%) Client/Server
8 25 (2.19%) Derivative
9 21 (1.84%) Data Protection Act
9 21 (1.84%) Self-Motivation
10 19 (1.66%) Private Cloud
11 18 (1.57%) Reference Data
12 17 (1.49%) Animation
13 16 (1.40%) Linux Command Line
14 15 (1.31%) Enterprise Software
14 15 (1.31%) iPad
14 15 (1.31%) iPhone
15 13 (1.14%) Replication
16 12 (1.05%) Management Information System
17 11 (0.96%) NHS
Operating Systems
1 206 (18.01%) Linux
2 174 (15.21%) Windows
3 112 (9.79%) Unix
4 57 (4.98%) Android
5 47 (4.11%) Apple iOS
6 35 (3.06%) Windows Server
7 14 (1.22%) Red Hat Enterprise Linux
8 13 (1.14%) Windows Server 2016
9 11 (0.96%) CentOS
10 9 (0.79%) Windows Server 2012
11 6 (0.52%) Ubuntu
12 5 (0.44%) Mac OS X
13 4 (0.35%) Windows 10
13 4 (0.35%) Windows Server 2019
14 3 (0.26%) Mac OS
14 3 (0.26%) Windows 7
15 2 (0.17%) Solaris
15 2 (0.17%) VMS
16 1 (0.087%) CoreOS
16 1 (0.087%) Tizen
Processes & Methodologies
1 536 (46.85%) Agile Software Development
2 316 (27.62%) DevOps
3 217 (18.97%) Microservices
4 189 (16.52%) Test Automation
5 171 (14.95%) Problem-Solving
6 139 (12.15%) Continuous Integration
6 139 (12.15%) Scrum
6 139 (12.15%) TDD
7 136 (11.89%) Data Modelling
8 108 (9.44%) Analytics
9 104 (9.09%) MVC
10 102 (8.92%) Unit Testing
11 97 (8.48%) Software Engineering
12 94 (8.22%) Business Intelligence
12 94 (8.22%) OO
13 84 (7.34%) Full Stack Development
14 81 (7.08%) ETL
15 79 (6.91%) BDD
15 79 (6.91%) Configuration Management
16 77 (6.73%) SDLC
Programming Languages
1 400 (34.97%) SQL
2 391 (34.18%) Java
3 331 (28.93%) JavaScript
4 272 (23.78%) Python
5 197 (17.22%) C#
6 110 (9.62%) Java 8
7 106 (9.27%) PowerShell
8 92 (8.04%) PL/SQL
9 73 (6.38%) C++
10 72 (6.29%) Shell Script
11 59 (5.16%) Scala
12 57 (4.98%) TypeScript
13 54 (4.72%) Kotlin
14 47 (4.11%) Bash Shell
15 38 (3.32%) Apple Swift
16 35 (3.06%) ES6
17 34 (2.97%) T-SQL
18 30 (2.62%) PHP
19 29 (2.53%) C
20 27 (2.36%) Objective-C
Qualifications
1 132 (11.54%) Security Cleared
2 105 (9.18%) SC Cleared
3 72 (6.29%) Degree
4 20 (1.75%) Computer Science Degree
5 14 (1.22%) DV Cleared
6 13 (1.14%) Master's Degree
7 12 (1.05%) BPSS Clearance
7 12 (1.05%) ISTQB
8 11 (0.96%) ISTQB Foundation Certification
9 8 (0.70%) Numerate Degree
10 7 (0.61%) ISEB
11 5 (0.44%) ITIL Certification
12 2 (0.17%) Microsoft Certification
13 1 (0.087%) AWS Certification
13 1 (0.087%) CITP
13 1 (0.087%) DBS Check
Quality Assurance & Compliance
1 73 (6.38%) QA
2 38 (3.32%) Accessibility
3 19 (1.66%) WCAG
4 13 (1.14%) OASIS TOSCA
5 12 (1.05%) Data Quality
6 11 (0.96%) HL7
7 5 (0.44%) Disclosure Scotland
8 2 (0.17%) SLA
9 1 (0.087%) GDPR
9 1 (0.087%) ISO 20022
9 1 (0.087%) ISO/IEC 27001
9 1 (0.087%) PCI DSS
9 1 (0.087%) PSD2
9 1 (0.087%) SNOMED CT
9 1 (0.087%) SOC 1
9 1 (0.087%) SOC 2
9 1 (0.087%) TARGET2
System Software
1 148 (12.94%) Docker
2 54 (4.72%) Active Directory
3 43 (3.76%) VMware Infrastructure
4 24 (2.10%) Virtual Machines
5 23 (2.01%) VMware ESXi
6 20 (1.75%) vSphere
7 13 (1.14%) HDFS
7 13 (1.14%) KVM
7 13 (1.14%) LXC
7 13 (1.14%) VMware NSX
8 12 (1.05%) Hyper-V
9 6 (0.52%) NFS
10 5 (0.44%) Virtual Desktop
10 5 (0.44%) Virtual Servers
11 2 (0.17%) BitLocker
12 1 (0.087%) Apache ZooKeeper
12 1 (0.087%) Oracle RAC
12 1 (0.087%) RHEV
12 1 (0.087%) VirtualBox
12 1 (0.087%) VMware Workstation
Systems Management
1 143 (12.50%) Ansible
2 115 (10.05%) Kubernetes
3 79 (6.91%) Terraform
4 41 (3.58%) Puppet
5 33 (2.88%) Grafana
6 26 (2.27%) vRealize
7 25 (2.19%) Opscode Chef
8 23 (2.01%) Prometheus
9 21 (1.84%) BladeLogic
10 20 (1.75%) Kibana
11 19 (1.66%) vCenter Server
12 15 (1.31%) Docker Swarm
13 13 (1.14%) Cloudify
13 13 (1.14%) Juju
14 12 (1.05%) Nagios
15 11 (0.96%) SCVMM
16 9 (0.79%) logstash
16 9 (0.79%) PowerCLI
17 7 (0.61%) Istio
17 7 (0.61%) Single Sign-On
Vendors
1 209 (18.27%) Oracle
2 128 (11.19%) Microsoft
3 63 (5.51%) VMware
4 55 (4.81%) Informatica
5 42 (3.67%) Databricks
5 42 (3.67%) Google
5 42 (3.67%) Salesforce.com
6 40 (3.50%) webMethods
6 40 (3.50%) WSO2
7 39 (3.41%) Splunk
8 38 (3.32%) BEA
9 35 (3.06%) SAP
10 29 (2.53%) MuleSoft
11 28 (2.45%) AppDynamics
11 28 (2.45%) Red Hat
12 24 (2.10%) Dell
13 23 (2.01%) Adobe
14 21 (1.84%) IBM
14 21 (1.84%) New Relic
14 21 (1.84%) SunGard