Period
to 21 September 2017

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 September 2017 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 Sep 2017
Same period 2016 Same period 2015
Rank 92 103 156
Rank change year-on-year +11 +53 -5
Contract jobs citing JSON 2600 2444 1824
As % of all contract IT jobs advertised in the UK 2.63% 2.27% 1.61%
As % of the Libraries, Frameworks & Software Standards category 8.20% 7.69% 5.77%
Number of daily rates quoted 1746 1735 1335
UK median daily rate £450 £425 £400
Median daily rate % change year-on-year +5.88% +6.25% -
10th Percentile £319 £311 £296
90th Percentile £588 £569 £550
UK excluding London median daily rate £425 £400 £375
% change year-on-year +6.25% +6.67% +4.17%
Number of hourly rates quoted 42 12 15
UK median hourly rate £42.50 £42.50 £33.64
Median hourly rate % change year-on-year - +26.34% -3.89%
10th Percentile £19.25 £22.28 £18.27
90th Percentile £63.75 £49.95 £57.55
UK excluding London median hourly rate £45.00 £40.00 £36.25
% change year-on-year +12.50% +10.34% +12.32%

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 31704 31776 31607
As % of all contract IT jobs advertised in the UK 32.10% 29.53% 27.85%
Number of daily rates quoted 22005 22231 21414
UK median daily rate £450 £425 £400
Median daily rate % change year-on-year +5.88% +6.25% +3.23%
10th Percentile £310 £295 £275
90th Percentile £625 £588 £588
UK excluding London median daily rate £400 £388 £375
% change year-on-year +3.23% +3.33% +7.14%
Number of hourly rates quoted 390 382 505
UK median hourly rate £40.00 £36.00 £37.50
Median hourly rate % change year-on-year +11.11% -4.00% +7.14%
10th Percentile £16.24 £13.25 £15.02
90th Percentile £53.75 £50.00 £53.25
UK excluding London median hourly rate £40.00 £36.00 £37.50
% change year-on-year +11.11% -4.00% +14.50%

JSON
Job Vacancy Trend

Job postings citing JSON as a percentage of all IT jobs advertised.

Job vacancy trend for JSON in the UK

JSON
Contractor Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing JSON.

Contractor daily rate trend for JSON in the UK

JSON
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing JSON over the 6 months to 21 September 2017.

Contractor daily rate histogram for JSON in the UK

JSON
Contractor Hourly Rate Trend

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing JSON.

Contractor hourly rate trend for JSON in the UK

JSON
Contractor Hourly Rate Histogram

The hourly rate distribution of IT jobs citing JSON over the 6 months to 21 September 2017.

Contractor 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 September 2017. 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 +4 2336 £461 +8.47% 271
UK excluding London +25 1440 £425 +6.25% 187
London +10 1094 £475 +5.56% 97
South East +2 426 £463 +8.82% 43
North of England -3 264 £404 -1.88% 54
East of England +67 246 £475 +18.75% 29
Midlands +3 185 £463 +11.45% 20
West Midlands +20 121 £494 +19.07% 15
Scotland +80 114 £395 +12.86% 10
North West -11 114 £375 -11.76% 37
South West -33 108 £360 -4.00% 28
Yorkshire -5 104 £445 +11.25% 14
Northern Ireland -2 67 £413 - 3
East Midlands -20 63 £400 -2.44% 5
North East +65 44 £450 +24.14% 3
Wales +8 26 £438 +18.24%
Channel Islands - 9 - -

For the 6 months to 21 September 2017, IT contractor jobs citing JSON also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads with a requirement for JSON.

1 1661 (63.88%) Agile Software Development
2 1230 (47.31%) Java
3 1140 (43.85%) XML
4 944 (36.31%) HTML
5 934 (35.92%) JavaScript
6 930 (35.77%) REST
7 890 (34.23%) CSS
8 787 (30.27%) Git (software)
9 735 (28.27%) RESTful
10 713 (27.42%) TDD
11 712 (27.38%) Web Services
12 694 (26.69%) Scrum
13 628 (24.15%) Finance
14 609 (23.42%) Spring
15 603 (23.19%) SQL
16 549 (21.12%) Linux
17 547 (21.04%) HTML5
18 507 (19.50%) Jenkins
19 486 (18.69%) Test Automation
20 482 (18.54%) Continuous Integration
20 482 (18.54%) SOAP
21 475 (18.27%) AngularJS
22 416 (16.00%) C#
22 416 (16.00%) MVC
23 405 (15.58%) jQuery
24 403 (15.50%) Ajax
25 395 (15.19%) CSS3
26 375 (14.42%) .NET
27 365 (14.04%) Node.js
28 358 (13.77%) Scala

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
1 161 (6.19%) Confluence
2 150 (5.77%) Apache
3 116 (4.46%) Tomcat
4 112 (4.31%) Mule
5 111 (4.27%) Oracle SOA Suite
6 90 (3.46%) JBoss
7 81 (3.12%) Apache Spark
8 77 (2.96%) Oracle Service Bus
8 77 (2.96%) WebSphere
9 65 (2.50%) CMS
10 60 (2.31%) Elasticsearch
11 56 (2.15%) WebLogic
12 47 (1.81%) IIS
13 44 (1.69%) nginx
14 32 (1.23%) SharePoint
15 29 (1.12%) Apache Solr
16 23 (0.88%) Cloud Foundry
17 17 (0.65%) Drupal
18 15 (0.58%) Mule ESB
18 15 (0.58%) SAS
Applications
1 15 (0.58%) Microsoft Excel
2 11 (0.42%) MS Visio
3 10 (0.38%) Photoshop
4 9 (0.35%) Adobe Illustrator
5 6 (0.23%) Microsoft Office
6 5 (0.19%) Pipeline Pilot
7 2 (0.077%) Adobe Creative Suite
7 2 (0.077%) HipChat
7 2 (0.077%) Spreadsheet
8 1 (0.038%) Microsoft Project
Business Applications
1 29 (1.12%) Payment Gateway
2 24 (0.92%) Dynamics CRM
3 9 (0.35%) Magento
4 4 (0.15%) Oracle BPM
5 3 (0.12%) Eloqua
5 3 (0.12%) Shopify
6 2 (0.077%) Oracle EBS
6 2 (0.077%) Oracle ERP
6 2 (0.077%) Oracle Receivables
6 2 (0.077%) SAP HCM
7 1 (0.038%) Adobe Campaign
7 1 (0.038%) BASE24
7 1 (0.038%) Dynamics NAV
7 1 (0.038%) JDE EnterpriseOne
7 1 (0.038%) OpenText Process Suite
7 1 (0.038%) RMDS
7 1 (0.038%) Salesforce.com CRM
7 1 (0.038%) Unica
Cloud Services
1 275 (10.58%) Amazon AWS
2 139 (5.35%) Microsoft Azure
3 127 (4.88%) GitHub
4 90 (3.46%) PaaS
5 75 (2.88%) SaaS
6 58 (2.23%) IaaS
7 50 (1.92%) npm
8 35 (1.35%) Amazon EC2
9 26 (1.00%) AWS Lambda
10 23 (0.88%) Amazon S3
10 23 (0.88%) AWS CloudFormation
11 21 (0.81%) Office 365
12 20 (0.77%) Azure Active Directory
13 17 (0.65%) Cloud Computing
14 16 (0.62%) Salesforce Service Cloud
15 15 (0.58%) OpenShift
16 13 (0.50%) Force.com
17 11 (0.42%) Google Cloud Platform
17 11 (0.42%) Salesforce Sales Cloud
18 9 (0.35%) Google Play
Communications & Networking
1 246 (9.46%) HTTP
2 58 (2.23%) SSL
3 49 (1.88%) Internet
4 41 (1.58%) DNS
5 36 (1.38%) TCP/IP
6 14 (0.54%) VPN
7 12 (0.46%) Firewall
8 11 (0.42%) Bluetooth
8 11 (0.42%) Wi-Fi
9 10 (0.38%) Intranet
9 10 (0.38%) Network Security
10 9 (0.35%) FTP
10 9 (0.35%) HTTPS
11 7 (0.27%) LDAP
11 7 (0.27%) RTSP
12 6 (0.23%) AMQP
13 5 (0.19%) DSL
14 4 (0.15%) MPLS
14 4 (0.15%) tcpdump
14 4 (0.15%) X.509
Database & Business Intelligence
1 311 (11.96%) MongoDB
2 291 (11.19%) SQL Server
3 270 (10.38%) NoSQL
4 239 (9.19%) Relational Database
5 195 (7.50%) Big Data
6 157 (6.04%) PostgreSQL
7 156 (6.00%) MySQL
8 141 (5.42%) Hadoop
9 68 (2.62%) RDBMS
10 65 (2.50%) HBase
11 59 (2.27%) Apache Cassandra
12 50 (1.92%) Oracle Database
13 49 (1.88%) Redis
14 44 (1.69%) Apache Hive
15 38 (1.46%) BusinessObjects
16 30 (1.15%) Data Warehouse
16 30 (1.15%) SQL Server 2012
17 26 (1.00%) SQL Server Integration Services
18 25 (0.96%) SQL Server Reporting Services
19 18 (0.69%) SQL Server 2014
Development Applications
1 787 (30.27%) Git (software)
2 507 (19.50%) Jenkins
3 357 (13.73%) JIRA
4 299 (11.50%) Maven
5 288 (11.08%) JUnit
6 254 (9.77%) Subversion
7 185 (7.12%) Cucumber
8 164 (6.31%) IntelliJ
9 134 (5.15%) Selenium
10 118 (4.54%) Eclipse
11 116 (4.46%) Gradle
12 109 (4.19%) gulp
13 98 (3.77%) Mockito
14 94 (3.62%) Grunt
15 81 (3.12%) SoapUI
16 73 (2.81%) Visual Studio
17 72 (2.77%) Team Foundation Server
18 67 (2.58%) Ant
19 66 (2.54%) Bitbucket
20 64 (2.46%) Calabash
General
1 628 (24.15%) Finance
2 294 (11.31%) Banking
3 201 (7.73%) Marketing
4 198 (7.62%) Telecoms
5 194 (7.46%) Manufacturing
6 173 (6.65%) Electronics
7 68 (2.62%) Retail
8 45 (1.73%) Front Office
9 38 (1.46%) Games
10 25 (0.96%) Investment Banking
11 23 (0.88%) Publishing
12 22 (0.85%) Legal
13 17 (0.65%) Advertising
14 10 (0.38%) French Language
14 10 (0.38%) Law
15 8 (0.31%) International Banking
16 7 (0.27%) Local Government
16 7 (0.27%) Retail Banking
17 6 (0.23%) Corporate Banking
17 6 (0.23%) Financial Institution
Job Titles
1 1944 (74.77%) Developer
2 532 (20.46%) Java Developer
3 258 (9.92%) Senior Developer
4 180 (6.92%) Scala Developer
5 172 (6.62%) JavaScript Developer
6 167 (6.42%) .NET Developer
7 163 (6.27%) Agile Developer
8 162 (6.23%) Front End Developer (Client-Side Developer)
9 138 (5.31%) Android Developer
9 138 (5.31%) Architect
10 132 (5.08%) C# Developer
11 128 (4.92%) Full Stack Developer
12 119 (4.58%) Software Developer
13 111 (4.27%) Integration Developer
14 95 (3.65%) Angular Developer
15 91 (3.50%) C# .NET Developer
16 89 (3.42%) iOS Developer
17 85 (3.27%) Software Engineer
18 84 (3.23%) UI Developer
19 77 (2.96%) SOA Developer
Libraries, Frameworks & Software Standards
1 1140 (43.85%) XML
2 944 (36.31%) HTML
3 930 (35.77%) REST
4 890 (34.23%) CSS
5 735 (28.27%) RESTful
6 712 (27.38%) Web Services
7 609 (23.42%) Spring
8 547 (21.04%) HTML5
9 482 (18.54%) SOAP
10 475 (18.27%) AngularJS
11 405 (15.58%) jQuery
12 403 (15.50%) Ajax
13 395 (15.19%) CSS3
14 375 (14.42%) .NET
15 365 (14.04%) Node.js
16 228 (8.77%) XSLT
17 225 (8.65%) Play Framework
18 221 (8.50%) Swagger
19 210 (8.08%) Middleware
20 197 (7.58%) React
Miscellaneous
1 221 (8.50%) User Experience
2 194 (7.46%) Greenfield Project
3 146 (5.62%) Mobile App
4 102 (3.92%) Computer Science
5 88 (3.38%) Analytical Skills
6 73 (2.81%) Enterprise Software
7 63 (2.42%) Data Structures
8 47 (1.81%) Linux Command Line
9 45 (1.73%) Virtual Team
10 40 (1.54%) Algorithms
11 33 (1.27%) Animation
12 31 (1.19%) iPhone
13 28 (1.08%) iPad
14 26 (1.00%) Video on Demand
15 25 (0.96%) W3C
16 23 (0.88%) Data Centre
17 22 (0.85%) Foreign Exchange (FX)
18 19 (0.73%) Fintech
19 18 (0.69%) Management Information System
19 18 (0.69%) Social Media
Operating Systems
1 549 (21.12%) Linux
2 264 (10.15%) Unix
3 183 (7.04%) Android
4 132 (5.08%) Apple iOS
5 111 (4.27%) Windows
6 54 (2.08%) Red Hat Enterprise Linux
7 48 (1.85%) Mac OS X
8 26 (1.00%) Solaris
9 17 (0.65%) HPUX
9 17 (0.65%) Mac OS
10 15 (0.58%) Windows Server
11 11 (0.42%) AIX
12 8 (0.31%) Ubuntu
13 7 (0.27%) CentOS
14 4 (0.15%) Debian
15 3 (0.12%) Windows 7
15 3 (0.12%) Windows 8
15 3 (0.12%) Windows Server 2012
16 1 (0.038%) Kali Linux
16 1 (0.038%) Windows Server 2008
Processes & Methodologies
1 1661 (63.88%) Agile Software Development
2 713 (27.42%) TDD
3 694 (26.69%) Scrum
4 486 (18.69%) Test Automation
5 482 (18.54%) Continuous Integration
6 416 (16.00%) MVC
7 349 (13.42%) Microservices
8 348 (13.38%) Open Source
9 287 (11.04%) OO
10 284 (10.92%) SOA
11 238 (9.15%) Web Development
12 233 (8.96%) Business Intelligence
12 233 (8.96%) Front End Development
13 225 (8.65%) Unit Testing
14 219 (8.42%) BDD
15 218 (8.38%) DevOps
16 211 (8.12%) Software Engineering
17 194 (7.46%) Kanban
18 176 (6.77%) Digital Marketing
18 176 (6.77%) Programme Management
Programming Languages
1 1230 (47.31%) Java
2 934 (35.92%) JavaScript
3 603 (23.19%) SQL
4 416 (16.00%) C#
5 358 (13.77%) Scala
6 334 (12.85%) Python
7 268 (10.31%) Ruby
8 133 (5.12%) XPath
9 105 (4.04%) Shell Script
10 99 (3.81%) Apple Swift
11 84 (3.23%) PHP
12 79 (3.04%) Objective-C
13 75 (2.88%) T-SQL
14 70 (2.69%) ES6
15 69 (2.65%) C++
16 66 (2.54%) TypeScript
17 64 (2.46%) Groovy
18 61 (2.35%) PowerShell
19 59 (2.27%) PL/SQL
20 58 (2.23%) Perl
Qualifications
1 151 (5.81%) Degree
2 117 (4.50%) Security Cleared
3 80 (3.08%) SC Cleared
4 70 (2.69%) Computer Science Degree
5 37 (1.42%) BPSS Clearance
6 14 (0.54%) DV Cleared
7 10 (0.38%) ISTQB
7 10 (0.38%) Master's Degree
8 6 (0.23%) AWS Certification
8 6 (0.23%) ISEB
8 6 (0.23%) Microsoft Certification
9 5 (0.19%) BC Cleared
9 5 (0.19%) PhD
10 3 (0.12%) ISTQB Foundation Certification
10 3 (0.12%) Sun Certification
11 2 (0.077%) MCSE
12 1 (0.038%) MCITP
12 1 (0.038%) PMI Certification
12 1 (0.038%) PMP
12 1 (0.038%) Six Sigma Black Belt
Quality Assurance & Compliance
1 141 (5.42%) QA
2 24 (0.92%) MiFID
3 19 (0.73%) Data Quality
4 18 (0.69%) PCI DSS
5 17 (0.65%) GDPR
6 15 (0.58%) Dodd-Frank
6 15 (0.58%) EMIR
7 13 (0.50%) HL7
8 12 (0.46%) GPG13
9 8 (0.31%) Disclosure Scotland
10 5 (0.19%) COBIT
10 5 (0.19%) WAI
10 5 (0.19%) WCAG
11 2 (0.077%) FATCA
11 2 (0.077%) GCP
12 1 (0.038%) Actionable Recommendations
12 1 (0.038%) ISO 9001
12 1 (0.038%) ISO/IEC 27001
12 1 (0.038%) SLA
System Software
1 236 (9.08%) Docker
2 41 (1.58%) Active Directory
3 27 (1.04%) Apache ZooKeeper
4 21 (0.81%) HDFS
5 12 (0.46%) Virtual Machines
6 11 (0.42%) VirtualBox
7 7 (0.27%) Xen
8 6 (0.23%) LXC
8 6 (0.23%) VMware Infrastructure
9 5 (0.19%) UAG
10 3 (0.12%) Firmware
10 3 (0.12%) Varnish
11 2 (0.077%) Apache Flume
12 1 (0.038%) Hyper-V
12 1 (0.038%) OpenAM
12 1 (0.038%) OpenDJ
12 1 (0.038%) OpenIDM
12 1 (0.038%) vCloud
12 1 (0.038%) VMware Workstation
12 1 (0.038%) XenApp
Systems Management
1 191 (7.35%) Puppet
2 83 (3.19%) Ansible
3 73 (2.81%) Opscode Chef
4 23 (0.88%) Hadoop YARN
5 21 (0.81%) Kubernetes
6 19 (0.73%) Kibana
7 15 (0.58%) Nagios
8 13 (0.50%) Terraform
9 11 (0.42%) Grafana
10 10 (0.38%) logstash
10 10 (0.38%) Oozie
10 10 (0.38%) Rancher
10 10 (0.38%) ZABBIX
11 8 (0.31%) Graphite
11 8 (0.31%) Mesos
11 8 (0.31%) StatsD
12 6 (0.23%) Docker Swarm
13 5 (0.19%) HP Quality Center
14 4 (0.15%) Ganglia
14 4 (0.15%) Salt
Vendors
1 308 (11.85%) Oracle
2 195 (7.50%) SAP
3 184 (7.08%) Microsoft
4 148 (5.69%) Google
5 146 (5.62%) WSO2
6 73 (2.81%) MuleSoft
7 72 (2.77%) IBM
8 50 (1.92%) Perforce
9 43 (1.65%) Apple
10 41 (1.58%) Salesforce.com
11 34 (1.31%) Red Hat
12 33 (1.27%) Apigee
13 31 (1.19%) Adobe
14 30 (1.15%) webMethods
15 26 (1.00%) Xamarin
16 23 (0.88%) Splunk
17 22 (0.85%) Atlassian
17 22 (0.85%) ServiceNow
17 22 (0.85%) Sitecore
18 19 (0.73%) Telerik