Period
to 21 November 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 November 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 Nov 2017
Same period 2016 Same period 2015
Rank 91 91 152
Rank change year-on-year 0 +61 -2
Contract jobs citing JSON 2690 2591 1798
As % of all contract IT jobs advertised in the UK 2.61% 2.47% 1.58%
As % of the Libraries, Frameworks & Software Standards category 8.14% 8.15% 5.59%
Number of daily rates quoted 1836 1813 1326
UK median daily rate £450 £428 £400
Median daily rate % change year-on-year +5.26% +6.88% +3.23%
10th Percentile £319 £308 £300
90th Percentile £600 £575 £550
UK excluding London median daily rate £438 £400 £388
% change year-on-year +9.38% +3.23% +3.33%
Number of hourly rates quoted 34 21 12
UK median hourly rate £45.00 £36.50 £36.25
Median hourly rate % change year-on-year +23.29% +0.69% +3.57%
10th Percentile £18.40 £30.00 £30.13
90th Percentile £63.75 £48.75 £59.78
UK excluding London median hourly rate £45.00 £37.50 £35.00
% change year-on-year +20.00% +7.14% -

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 33044 31776 32166
As % of all contract IT jobs advertised in the UK 32.04% 30.34% 28.32%
Number of daily rates quoted 23329 22020 22052
UK median daily rate £450 £425 £410
Median daily rate % change year-on-year +5.88% +3.66% +2.50%
10th Percentile £313 £300 £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 380 363 552
UK median hourly rate £40.00 £37.50 £37.50
Median hourly rate % change year-on-year +6.67% - +8.70%
10th Percentile £18.45 £14.36 £15.00
90th Percentile £52.50 £51.60 £55.00
UK excluding London median hourly rate £41.00 £37.00 £37.50
% change year-on-year +10.81% -1.33% +10.74%

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 November 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 November 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 November 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 0 2479 £460 +6.98% 280
UK excluding London +13 1420 £438 +9.38% 208
London +2 1227 £475 +2.70% 94
South East +8 424 £470 +13.94% 51
North of England -6 273 £425 - 69
East of England +47 266 £513 +57.69% 14
Midlands -2 168 £450 +8.43% 32
North West -2 129 £398 -6.47% 49
South West -34 118 £371 +0.34% 20
West Midlands +15 107 £492 +18.46% 20
Scotland +41 105 £400 +14.29% 14
Yorkshire -25 82 £450 +5.88% 19
East Midlands -15 60 £425 +1.19% 12
North East +38 59 £450 +20.00% 1
Northern Ireland -5 46 £413 - 4
Wales -18 25 £425 -10.53% 4
Channel Islands - 5 - -

For the 6 months to 21 November 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 1642 (61.04%) Agile Software Development
2 1340 (49.81%) Java
3 1161 (43.16%) XML
4 1004 (37.32%) JavaScript
5 953 (35.43%) REST
6 933 (34.68%) HTML
7 852 (31.67%) CSS
8 789 (29.33%) Web Services
9 763 (28.36%) Git (software)
10 747 (27.77%) RESTful
11 729 (27.10%) TDD
12 660 (24.54%) Scrum
13 655 (24.35%) Spring
14 641 (23.83%) SQL
15 617 (22.94%) Finance
16 561 (20.86%) Linux
17 542 (20.15%) SOAP
18 522 (19.41%) HTML5
19 472 (17.55%) AngularJS
20 470 (17.47%) Test Automation
21 457 (16.99%) Jenkins
22 443 (16.47%) Continuous Integration
23 409 (15.20%) .NET
24 404 (15.02%) Node.js
25 401 (14.91%) jQuery
26 398 (14.80%) CSS3
27 392 (14.57%) MVC
28 390 (14.50%) C#
29 347 (12.90%) JIRA
30 340 (12.64%) SQL Server

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
1 154 (5.72%) Confluence
2 144 (5.35%) Apache
3 126 (4.68%) Tomcat
4 114 (4.24%) Oracle SOA Suite
5 113 (4.20%) Mule
6 97 (3.61%) Apache Spark
7 96 (3.57%) JBoss
8 76 (2.83%) Oracle Service Bus
9 57 (2.12%) CMS
10 54 (2.01%) Elasticsearch
11 52 (1.93%) WebSphere
12 49 (1.82%) WebLogic
13 41 (1.52%) Apache Solr
14 39 (1.45%) IIS
15 35 (1.30%) nginx
16 30 (1.12%) SharePoint
17 28 (1.04%) Cloud Foundry
18 19 (0.71%) Drupal
19 17 (0.63%) BizTalk Server
20 16 (0.59%) SAS
Applications
1 15 (0.56%) Microsoft Excel
2 13 (0.48%) MS Visio
3 10 (0.37%) Pipeline Pilot
4 9 (0.33%) Adobe Illustrator
4 9 (0.33%) Photoshop
5 5 (0.19%) HipChat
5 5 (0.19%) Microsoft Office
6 2 (0.074%) InfoPath
7 1 (0.037%) Chatbot
7 1 (0.037%) Gephi
7 1 (0.037%) Microsoft Project
Business Applications
1 30 (1.12%) Payment Gateway
2 20 (0.74%) Dynamics CRM
3 16 (0.59%) Magento
4 4 (0.15%) Oracle BPM
4 4 (0.15%) Shopify
5 2 (0.074%) Oracle EBS
5 2 (0.074%) Oracle ERP
5 2 (0.074%) Oracle Receivables
5 2 (0.074%) Remedy ITSM
5 2 (0.074%) SAP BPC
5 2 (0.074%) SAP HCM
5 2 (0.074%) Social Studio
5 2 (0.074%) WebTrends
6 1 (0.037%) BASE24
6 1 (0.037%) Dynamics NAV
6 1 (0.037%) OpenText Process Suite
6 1 (0.037%) Oracle SCM
6 1 (0.037%) RMDS
6 1 (0.037%) SAP CRM
6 1 (0.037%) Summit
Cloud Services
1 312 (11.60%) Amazon AWS
2 166 (6.17%) Microsoft Azure
3 126 (4.68%) GitHub
4 110 (4.09%) PaaS
5 82 (3.05%) SaaS
6 79 (2.94%) IaaS
7 75 (2.79%) npm
8 66 (2.45%) Serverless
9 49 (1.82%) Amazon EC2
10 34 (1.26%) Amazon S3
10 34 (1.26%) AWS Lambda
11 26 (0.97%) AWS CloudFormation
12 22 (0.82%) Virtual Private Cloud
13 21 (0.78%) Azure Active Directory
14 19 (0.71%) Amazon ELB
15 18 (0.67%) Office 365
16 16 (0.59%) Cloud Computing
16 16 (0.59%) Route 53
16 16 (0.59%) Salesforce Service Cloud
17 12 (0.45%) Salesforce Sales Cloud
Communications & Networking
1 203 (7.55%) HTTP
2 66 (2.45%) Internet
3 63 (2.34%) TCP/IP
4 59 (2.19%) SSL
5 51 (1.90%) DNS
6 25 (0.93%) Firewall
7 21 (0.78%) Wi-Fi
8 20 (0.74%) Bluetooth
8 20 (0.74%) VPN
9 16 (0.59%) Network Security
10 11 (0.41%) FTP
11 9 (0.33%) HTTPS
11 9 (0.33%) RTSP
12 8 (0.30%) AMQP
12 8 (0.30%) MPLS
12 8 (0.30%) SMS
12 8 (0.30%) SSH
13 7 (0.26%) LDAP
13 7 (0.26%) MQTT
14 6 (0.22%) DSL
Database & Business Intelligence
1 340 (12.64%) SQL Server
2 303 (11.26%) MongoDB
3 269 (10.00%) NoSQL
4 254 (9.44%) Relational Database
5 227 (8.44%) Big Data
6 175 (6.51%) PostgreSQL
7 166 (6.17%) MySQL
8 156 (5.80%) Hadoop
9 92 (3.42%) RDBMS
10 79 (2.94%) HBase
11 77 (2.86%) Oracle Database
12 63 (2.34%) Redis
13 61 (2.27%) Apache Cassandra
14 44 (1.64%) Apache Hive
15 39 (1.45%) BusinessObjects
16 27 (1.00%) Data Warehouse
17 25 (0.93%) SQL Server Integration Services
18 23 (0.86%) SQL Server 2012
18 23 (0.86%) SQL Server 2014
19 20 (0.74%) SQL Server 2008
Development Applications
1 763 (28.36%) Git (software)
2 457 (16.99%) Jenkins
3 347 (12.90%) JIRA
4 304 (11.30%) Maven
5 264 (9.81%) JUnit
6 212 (7.88%) Subversion
7 178 (6.62%) Cucumber
8 157 (5.84%) IntelliJ
9 133 (4.94%) Eclipse
9 133 (4.94%) Selenium
10 116 (4.31%) Gradle
11 107 (3.98%) Visual Studio
12 105 (3.90%) gulp
13 94 (3.49%) Grunt
14 88 (3.27%) Mockito
15 81 (3.01%) SoapUI
16 70 (2.60%) webpack
17 68 (2.53%) TeamCity
18 58 (2.16%) Team Foundation Server
19 56 (2.08%) Bitbucket
General
1 617 (22.94%) Finance
2 250 (9.29%) Banking
3 201 (7.47%) Marketing
4 191 (7.10%) Manufacturing
5 185 (6.88%) Telecoms
6 168 (6.25%) Electronics
7 71 (2.64%) Retail
8 41 (1.52%) Games
9 35 (1.30%) Legal
10 32 (1.19%) Publishing
11 24 (0.89%) Front Office
12 21 (0.78%) Advertising
13 19 (0.71%) Investment Banking
14 16 (0.59%) Law
15 11 (0.41%) French Language
16 10 (0.37%) Retail Banking
17 8 (0.30%) Automotive
18 7 (0.26%) Billing
19 6 (0.22%) Financial Institution
19 6 (0.22%) Local Government
Job Titles
1 1946 (72.34%) Developer
2 616 (22.90%) Java Developer
3 255 (9.48%) Senior Developer
4 217 (8.07%) JavaScript Developer
5 165 (6.13%) Architect
5 165 (6.13%) Front End Developer (Client-Side Developer)
6 155 (5.76%) Agile Developer
7 152 (5.65%) .NET Developer
8 151 (5.61%) Full Stack Developer
9 143 (5.32%) Scala Developer
10 127 (4.72%) Android Developer
11 113 (4.20%) C# Developer
12 112 (4.16%) Software Developer
13 109 (4.05%) Integration Developer
14 104 (3.87%) Angular Developer
15 89 (3.31%) SQL Developer
16 88 (3.27%) HTML Developer
17 87 (3.23%) Software Engineer
18 85 (3.16%) Consultant
19 80 (2.97%) UI Developer
Libraries, Frameworks & Software Standards
1 1161 (43.16%) XML
2 953 (35.43%) REST
3 933 (34.68%) HTML
4 852 (31.67%) CSS
5 789 (29.33%) Web Services
6 747 (27.77%) RESTful
7 655 (24.35%) Spring
8 542 (20.15%) SOAP
9 522 (19.41%) HTML5
10 472 (17.55%) AngularJS
11 409 (15.20%) .NET
12 404 (15.02%) Node.js
13 401 (14.91%) jQuery
14 398 (14.80%) CSS3
15 330 (12.27%) Ajax
16 228 (8.48%) React
17 198 (7.36%) Middleware
18 195 (7.25%) J2EE
18 195 (7.25%) Swagger
19 192 (7.14%) Spring Boot
Miscellaneous
1 255 (9.48%) User Experience
2 192 (7.14%) Greenfield Project
3 138 (5.13%) Mobile App
4 108 (4.01%) Computer Science
5 102 (3.79%) Data Structures
6 100 (3.72%) Analytical Skills
7 78 (2.90%) Enterprise Software
8 51 (1.90%) Virtual Team
9 44 (1.64%) Linux Command Line
10 34 (1.26%) Video on Demand
11 32 (1.19%) Algorithms
12 26 (0.97%) Data Centre
13 23 (0.86%) Video\Live Streaming
14 22 (0.82%) Management Information System
15 21 (0.78%) W3C
16 20 (0.74%) Animation
17 18 (0.67%) Replication
18 17 (0.63%) Cloud Native
19 16 (0.59%) Foreign Exchange (FX)
20 15 (0.56%) CMDB
Operating Systems
1 561 (20.86%) Linux
2 237 (8.81%) Unix
3 193 (7.17%) Android
4 141 (5.24%) Windows
5 127 (4.72%) Apple iOS
6 74 (2.75%) Red Hat Enterprise Linux
7 41 (1.52%) Mac OS X
8 33 (1.23%) Windows Server
9 28 (1.04%) Solaris
10 19 (0.71%) HPUX
11 18 (0.67%) Windows Server 2012
12 13 (0.48%) CentOS
13 12 (0.45%) AIX
14 9 (0.33%) Mac OS
15 6 (0.22%) Ubuntu
15 6 (0.22%) Windows 7
16 4 (0.15%) Windows 8
17 2 (0.074%) Fedora
17 2 (0.074%) Windows Server 2008
18 1 (0.037%) Debian
Processes & Methodologies
1 1642 (61.04%) Agile Software Development
2 729 (27.10%) TDD
3 660 (24.54%) Scrum
4 470 (17.47%) Test Automation
5 443 (16.47%) Continuous Integration
6 392 (14.57%) MVC
7 310 (11.52%) Microservices
8 296 (11.00%) Open Source
9 291 (10.82%) OO
10 287 (10.67%) DevOps
11 265 (9.85%) SOA
12 259 (9.63%) BDD
13 251 (9.33%) Business Intelligence
14 247 (9.18%) Front End Development
15 242 (9.00%) Web Development
16 235 (8.74%) Unit Testing
17 224 (8.33%) Kanban
18 213 (7.92%) Software Engineering
19 175 (6.51%) Programme Management
20 168 (6.25%) Configuration Management
Programming Languages
1 1340 (49.81%) Java
2 1004 (37.32%) JavaScript
3 641 (23.83%) SQL
4 390 (14.50%) C#
5 309 (11.49%) Python
6 294 (10.93%) Scala
7 241 (8.96%) Ruby
8 134 (4.98%) XPath
9 104 (3.87%) PHP
10 101 (3.75%) Shell Script
11 100 (3.72%) ES6
12 85 (3.16%) PowerShell
13 84 (3.12%) T-SQL
14 83 (3.09%) Apple Swift
15 77 (2.86%) PL/SQL
16 76 (2.83%) Groovy
17 75 (2.79%) TypeScript
18 67 (2.49%) C++
19 62 (2.30%) Bash Shell
19 62 (2.30%) Perl
Qualifications
1 193 (7.17%) Security Cleared
2 167 (6.21%) Degree
3 130 (4.83%) SC Cleared
4 69 (2.57%) Computer Science Degree
5 33 (1.23%) DV Cleared
6 13 (0.48%) BPSS Clearance
7 10 (0.37%) PhD
8 9 (0.33%) AWS Certification
8 9 (0.33%) ISTQB
9 8 (0.30%) Master's Degree
10 7 (0.26%) Microsoft Certification
11 5 (0.19%) BC Cleared
12 4 (0.15%) ISEB
12 4 (0.15%) MCSD
12 4 (0.15%) MCSE
12 4 (0.15%) Sun Certification
13 3 (0.11%) ISTQB Foundation Certification
13 3 (0.11%) Numerate Degree
13 3 (0.11%) RHCE
14 2 (0.074%) DBS Check
Quality Assurance & Compliance
1 149 (5.54%) QA
2 51 (1.90%) Data Quality
3 21 (0.78%) MiFID
4 18 (0.67%) HL7
5 17 (0.63%) GDPR
6 15 (0.56%) PCI DSS
7 14 (0.52%) Disclosure Scotland
8 12 (0.45%) GPG13
9 11 (0.41%) EMIR
10 10 (0.37%) Dodd-Frank
11 6 (0.22%) SLA
12 4 (0.15%) PMO
13 3 (0.11%) COBIT
13 3 (0.11%) WCAG
14 2 (0.074%) GCP
14 2 (0.074%) ISO/IEC 27001
15 1 (0.037%) CESG Infosec
15 1 (0.037%) HMG Security Policy Framework
15 1 (0.037%) ISO 9001
15 1 (0.037%) PSD2
System Software
1 280 (10.41%) Docker
2 58 (2.16%) Active Directory
3 31 (1.15%) Apache ZooKeeper
4 27 (1.00%) HDFS
5 16 (0.59%) VMware Infrastructure
6 14 (0.52%) Oracle Clusterware
6 14 (0.52%) Oracle RAC
6 14 (0.52%) Virtual Machines
7 13 (0.48%) Hyper-V
8 10 (0.37%) Firmware
9 8 (0.30%) Microsoft Virtual Server
9 8 (0.30%) Virtual Servers
10 7 (0.26%) Apache Flume
10 7 (0.26%) Xen
11 6 (0.22%) LXC
12 4 (0.15%) VirtualBox
13 3 (0.11%) UAG
14 2 (0.074%) Varnish
15 1 (0.037%) VMware Workstation
15 1 (0.037%) XenApp
Systems Management
1 190 (7.06%) Puppet
2 96 (3.57%) Ansible
3 76 (2.83%) Opscode Chef
4 40 (1.49%) Kubernetes
5 33 (1.23%) Kibana
5 33 (1.23%) Terraform
6 26 (0.97%) Grafana
6 26 (0.97%) Hadoop YARN
7 17 (0.63%) Rancher
8 15 (0.56%) logstash
9 14 (0.52%) Data Guard
9 14 (0.52%) Oracle Flashback
9 14 (0.52%) Oracle RMAN
10 13 (0.48%) WSUS
11 12 (0.45%) Nagios
12 11 (0.41%) StatsD
13 9 (0.33%) Oozie
13 9 (0.33%) ZABBIX
14 7 (0.26%) HP Quality Center
15 6 (0.22%) WebSphere Cast Iron
Vendors
1 332 (12.34%) Oracle
2 206 (7.66%) Microsoft
3 194 (7.21%) SAP
4 120 (4.46%) WSO2
5 113 (4.20%) Google
6 58 (2.16%) IBM
7 52 (1.93%) Perforce
8 48 (1.78%) Red Hat
9 47 (1.75%) Apigee
10 44 (1.64%) MuleSoft
11 35 (1.30%) Atlassian
12 30 (1.12%) Splunk
13 29 (1.08%) Salesforce.com
13 29 (1.08%) webMethods
14 28 (1.04%) Apple
15 24 (0.89%) Adobe
15 24 (0.89%) TIBCO
16 23 (0.86%) Xamarin
17 18 (0.67%) VMware
18 17 (0.63%) ServiceNow