Period
to 19 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 19 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
19 Nov 2017
Same period 2016 Same period 2015
Rank 92 91 153
Rank change year-on-year -1 +62 -1
Contract jobs citing JSON 2649 2587 1818
As % of all contract IT jobs advertised in the UK 2.61% 2.47% 1.59%
As % of the Libraries, Frameworks & Software Standards category 8.15% 8.13% 5.61%
Number of daily rates quoted 1803 1815 1339
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 £436 £400 £385
% change year-on-year +9.06% +3.90% +2.67%
Number of hourly rates quoted 34 21 11
UK median hourly rate £45.00 £36.50 £37.50
Median hourly rate % change year-on-year +23.29% -2.67% +7.14%
10th Percentile £18.40 £30.00 £31.25
90th Percentile £63.75 £48.75 £60.00
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 32518 31826 32407
As % of all contract IT jobs advertised in the UK 32.07% 30.35% 28.28%
Number of daily rates quoted 22959 22067 22211
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 373 364 554
UK median hourly rate £40.00 £37.50 £37.50
Median hourly rate % change year-on-year +6.67% - +7.14%
10th Percentile £18.10 £14.19 £15.01
90th Percentile £52.50 £51.40 £54.97
UK excluding London median hourly rate £41.00 £37.00 £37.50
% change year-on-year +10.81% -1.33% +10.29%

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 19 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 19 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 19 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 -1 2439 £460 +6.98% 229
UK excluding London +17 1410 £436 +9.06% 168
London +2 1195 £475 +2.98% 75
South East +6 419 £465 +12.73% 47
North of England -8 272 £425 +0.59% 46
East of England +48 264 £513 +57.69% 10
Midlands +5 167 £450 +7.14% 35
North West -1 128 £385 -9.41% 32
South West -26 118 £371 -1.00% 16
West Midlands +14 107 £492 +18.46% 19
Scotland +39 103 £400 +14.29% 8
Yorkshire -26 82 £450 +7.46% 12
North East +44 59 £450 +20.00% 2
East Midlands -11 59 £425 +1.19% 16
Northern Ireland 0 46 £413 - 1
Wales -18 25 £425 -10.53% 5
Channel Islands - 5 - -

For the 6 months to 19 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 1617 (61.04%) Agile Software Development
2 1324 (49.98%) Java
3 1147 (43.30%) XML
4 991 (37.41%) JavaScript
5 939 (35.45%) REST
6 916 (34.58%) HTML
7 838 (31.63%) CSS
8 771 (29.11%) Web Services
9 753 (28.43%) Git (software)
10 736 (27.78%) RESTful
11 714 (26.95%) TDD
12 651 (24.58%) Scrum
13 650 (24.54%) Spring
14 634 (23.93%) SQL
15 612 (23.10%) Finance
16 553 (20.88%) Linux
17 536 (20.23%) SOAP
18 514 (19.40%) HTML5
19 466 (17.59%) Test Automation
20 457 (17.25%) AngularJS
21 448 (16.91%) Jenkins
22 436 (16.46%) Continuous Integration
23 403 (15.21%) .NET
24 393 (14.84%) Node.js
25 392 (14.80%) jQuery
26 391 (14.76%) CSS3
27 388 (14.65%) MVC
28 385 (14.53%) C#
29 339 (12.80%) JIRA
30 333 (12.57%) 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
1 150 (5.66%) Confluence
2 142 (5.36%) Apache
3 125 (4.72%) Tomcat
4 113 (4.27%) Oracle SOA Suite
5 112 (4.23%) Mule
6 97 (3.66%) Apache Spark
7 95 (3.59%) JBoss
8 75 (2.83%) Oracle Service Bus
9 56 (2.11%) CMS
10 53 (2.00%) Elasticsearch
11 52 (1.96%) WebSphere
12 48 (1.81%) WebLogic
13 41 (1.55%) Apache Solr
14 39 (1.47%) IIS
15 35 (1.32%) nginx
16 29 (1.09%) SharePoint
17 27 (1.02%) Cloud Foundry
18 19 (0.72%) Drupal
19 17 (0.64%) BizTalk Server
20 16 (0.60%) SAS
Applications
1 14 (0.53%) Microsoft Excel
2 13 (0.49%) MS Visio
3 10 (0.38%) Pipeline Pilot
4 9 (0.34%) Adobe Illustrator
4 9 (0.34%) Photoshop
5 5 (0.19%) HipChat
5 5 (0.19%) Microsoft Office
6 2 (0.076%) InfoPath
7 1 (0.038%) Chatbot
7 1 (0.038%) Gephi
7 1 (0.038%) Microsoft Project
Business Applications
1 30 (1.13%) Payment Gateway
2 20 (0.76%) Dynamics CRM
3 15 (0.57%) Magento
4 4 (0.15%) Oracle BPM
4 4 (0.15%) Shopify
5 2 (0.076%) Oracle EBS
5 2 (0.076%) Oracle ERP
5 2 (0.076%) Oracle Receivables
5 2 (0.076%) Remedy ITSM
5 2 (0.076%) SAP BPC
5 2 (0.076%) SAP HCM
5 2 (0.076%) Social Studio
5 2 (0.076%) WebTrends
6 1 (0.038%) BASE24
6 1 (0.038%) Dynamics NAV
6 1 (0.038%) OpenText Process Suite
6 1 (0.038%) Oracle SCM
6 1 (0.038%) RMDS
6 1 (0.038%) SAP CRM
6 1 (0.038%) Summit
Cloud Services
1 302 (11.40%) Amazon AWS
2 165 (6.23%) Microsoft Azure
3 124 (4.68%) GitHub
4 110 (4.15%) PaaS
5 80 (3.02%) SaaS
6 79 (2.98%) IaaS
7 71 (2.68%) npm
8 65 (2.45%) Serverless
9 47 (1.77%) Amazon EC2
10 33 (1.25%) AWS Lambda
11 32 (1.21%) Amazon S3
12 26 (0.98%) AWS CloudFormation
13 21 (0.79%) Azure Active Directory
13 21 (0.79%) Virtual Private Cloud
14 18 (0.68%) Amazon ELB
14 18 (0.68%) Office 365
15 16 (0.60%) Route 53
15 16 (0.60%) Salesforce Service Cloud
16 15 (0.57%) Cloud Computing
17 12 (0.45%) Salesforce Sales Cloud
Communications & Networking
1 199 (7.51%) HTTP
2 61 (2.30%) Internet
2 61 (2.30%) TCP/IP
3 58 (2.19%) SSL
4 50 (1.89%) DNS
5 25 (0.94%) Firewall
6 20 (0.76%) VPN
6 20 (0.76%) Wi-Fi
7 19 (0.72%) Bluetooth
8 16 (0.60%) Network Security
9 11 (0.42%) FTP
10 9 (0.34%) HTTPS
10 9 (0.34%) RTSP
11 8 (0.30%) AMQP
11 8 (0.30%) MPLS
11 8 (0.30%) SMS
12 7 (0.26%) LDAP
12 7 (0.26%) MQTT
12 7 (0.26%) SSH
13 6 (0.23%) DSL
Database & Business Intelligence
1 333 (12.57%) SQL Server
2 302 (11.40%) MongoDB
3 264 (9.97%) NoSQL
4 250 (9.44%) Relational Database
5 224 (8.46%) Big Data
6 171 (6.46%) PostgreSQL
7 163 (6.15%) MySQL
8 151 (5.70%) Hadoop
9 89 (3.36%) RDBMS
10 77 (2.91%) HBase
11 76 (2.87%) Oracle Database
12 61 (2.30%) Apache Cassandra
13 60 (2.27%) Redis
14 44 (1.66%) Apache Hive
15 39 (1.47%) BusinessObjects
16 27 (1.02%) Data Warehouse
17 24 (0.91%) SQL Server Integration Services
18 22 (0.83%) SQL Server 2014
19 21 (0.79%) SQL Server 2012
20 19 (0.72%) Amazon RDS
Development Applications
1 753 (28.43%) Git (software)
2 448 (16.91%) Jenkins
3 339 (12.80%) JIRA
4 301 (11.36%) Maven
5 263 (9.93%) JUnit
6 211 (7.97%) Subversion
7 175 (6.61%) Cucumber
8 157 (5.93%) IntelliJ
9 132 (4.98%) Selenium
10 131 (4.95%) Eclipse
11 115 (4.34%) Gradle
12 107 (4.04%) Visual Studio
13 102 (3.85%) gulp
14 92 (3.47%) Grunt
15 88 (3.32%) Mockito
16 81 (3.06%) SoapUI
17 69 (2.60%) webpack
18 67 (2.53%) TeamCity
19 58 (2.19%) Team Foundation Server
20 56 (2.11%) Bitbucket
General
1 612 (23.10%) Finance
2 250 (9.44%) Banking
3 200 (7.55%) Marketing
4 191 (7.21%) Manufacturing
5 185 (6.98%) Telecoms
6 168 (6.34%) Electronics
7 70 (2.64%) Retail
8 40 (1.51%) Games
9 34 (1.28%) Legal
10 32 (1.21%) Publishing
11 24 (0.91%) Front Office
12 21 (0.79%) Advertising
13 19 (0.72%) Investment Banking
14 15 (0.57%) Law
15 11 (0.42%) French Language
16 10 (0.38%) Retail Banking
17 8 (0.30%) Automotive
18 7 (0.26%) Billing
19 6 (0.23%) Financial Institution
19 6 (0.23%) Local Government
Job Titles
1 1914 (72.25%) Developer
2 608 (22.95%) Java Developer
3 249 (9.40%) Senior Developer
4 215 (8.12%) JavaScript Developer
5 163 (6.15%) Architect
5 163 (6.15%) Front End Developer (Client-Side Developer)
6 151 (5.70%) .NET Developer
6 151 (5.70%) Agile Developer
7 148 (5.59%) Full Stack Developer
8 142 (5.36%) Scala Developer
9 124 (4.68%) Android Developer
10 112 (4.23%) C# Developer
10 112 (4.23%) Software Developer
11 108 (4.08%) Integration Developer
12 100 (3.78%) Angular Developer
13 86 (3.25%) SQL Developer
14 85 (3.21%) Consultant
14 85 (3.21%) HTML Developer
14 85 (3.21%) Software Engineer
15 78 (2.94%) UI Developer
Libraries, Frameworks & Software Standards
1 1147 (43.30%) XML
2 939 (35.45%) REST
3 916 (34.58%) HTML
4 838 (31.63%) CSS
5 771 (29.11%) Web Services
6 736 (27.78%) RESTful
7 650 (24.54%) Spring
8 536 (20.23%) SOAP
9 514 (19.40%) HTML5
10 457 (17.25%) AngularJS
11 403 (15.21%) .NET
12 393 (14.84%) Node.js
13 392 (14.80%) jQuery
14 391 (14.76%) CSS3
15 328 (12.38%) Ajax
16 224 (8.46%) React
17 196 (7.40%) Middleware
18 194 (7.32%) Swagger
19 192 (7.25%) Spring Boot
20 191 (7.21%) J2EE
Miscellaneous
1 252 (9.51%) User Experience
2 191 (7.21%) Greenfield Project
3 136 (5.13%) Mobile App
4 108 (4.08%) Computer Science
5 102 (3.85%) Data Structures
6 96 (3.62%) Analytical Skills
7 77 (2.91%) Enterprise Software
8 51 (1.93%) Virtual Team
9 43 (1.62%) Linux Command Line
10 32 (1.21%) Algorithms
11 31 (1.17%) Video on Demand
12 24 (0.91%) Data Centre
13 21 (0.79%) Management Information System
13 21 (0.79%) Video\Live Streaming
13 21 (0.79%) W3C
14 19 (0.72%) Animation
15 18 (0.68%) Replication
16 17 (0.64%) Cloud Native
17 16 (0.60%) Foreign Exchange (FX)
18 15 (0.57%) CMDB
Operating Systems
1 553 (20.88%) Linux
2 235 (8.87%) Unix
3 187 (7.06%) Android
4 141 (5.32%) Windows
5 125 (4.72%) Apple iOS
6 71 (2.68%) Red Hat Enterprise Linux
7 39 (1.47%) Mac OS X
8 33 (1.25%) Windows Server
9 28 (1.06%) Solaris
10 19 (0.72%) HPUX
11 18 (0.68%) Windows Server 2012
12 13 (0.49%) CentOS
13 12 (0.45%) AIX
14 9 (0.34%) Mac OS
15 6 (0.23%) Ubuntu
15 6 (0.23%) Windows 7
16 4 (0.15%) Windows 8
17 2 (0.076%) Fedora
17 2 (0.076%) Windows Server 2008
18 1 (0.038%) Debian
Processes & Methodologies
1 1617 (61.04%) Agile Software Development
2 714 (26.95%) TDD
3 651 (24.58%) Scrum
4 466 (17.59%) Test Automation
5 436 (16.46%) Continuous Integration
6 388 (14.65%) MVC
7 304 (11.48%) Microservices
8 291 (10.99%) Open Source
9 290 (10.95%) OO
10 278 (10.49%) DevOps
11 263 (9.93%) SOA
12 251 (9.48%) Business Intelligence
13 249 (9.40%) BDD
14 244 (9.21%) Front End Development
15 237 (8.95%) Web Development
16 231 (8.72%) Unit Testing
17 220 (8.31%) Kanban
18 210 (7.93%) Software Engineering
19 175 (6.61%) Programme Management
20 168 (6.34%) Digital Marketing
Programming Languages
1 1324 (49.98%) Java
2 991 (37.41%) JavaScript
3 634 (23.93%) SQL
4 385 (14.53%) C#
5 302 (11.40%) Python
6 294 (11.10%) Scala
7 234 (8.83%) Ruby
8 133 (5.02%) XPath
9 100 (3.78%) PHP
10 99 (3.74%) Shell Script
11 97 (3.66%) ES6
12 85 (3.21%) PowerShell
13 83 (3.13%) T-SQL
14 82 (3.10%) Apple Swift
15 77 (2.91%) PL/SQL
16 74 (2.79%) TypeScript
17 73 (2.76%) Groovy
18 66 (2.49%) C++
19 57 (2.15%) Objective-C
19 57 (2.15%) Perl
Qualifications
1 184 (6.95%) Security Cleared
2 163 (6.15%) Degree
3 122 (4.61%) SC Cleared
4 69 (2.60%) Computer Science Degree
5 33 (1.25%) DV Cleared
6 13 (0.49%) BPSS Clearance
7 10 (0.38%) PhD
8 9 (0.34%) ISTQB
9 8 (0.30%) Master's Degree
10 7 (0.26%) AWS Certification
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
14 2 (0.076%) DBS Check
14 2 (0.076%) HND
14 2 (0.076%) Numerate Degree
Quality Assurance & Compliance
1 147 (5.55%) QA
2 51 (1.93%) Data Quality
3 21 (0.79%) MiFID
4 18 (0.68%) HL7
5 17 (0.64%) GDPR
6 15 (0.57%) PCI DSS
7 13 (0.49%) Disclosure Scotland
8 12 (0.45%) GPG13
9 11 (0.42%) EMIR
10 10 (0.38%) Dodd-Frank
11 6 (0.23%) SLA
12 4 (0.15%) PMO
13 3 (0.11%) COBIT
13 3 (0.11%) WCAG
14 2 (0.076%) GCP
14 2 (0.076%) ISO/IEC 27001
15 1 (0.038%) CESG Infosec
15 1 (0.038%) HMG Security Policy Framework
15 1 (0.038%) ISO 9001
15 1 (0.038%) PSD2
System Software
1 271 (10.23%) Docker
2 56 (2.11%) Active Directory
3 31 (1.17%) Apache ZooKeeper
4 27 (1.02%) HDFS
5 16 (0.60%) VMware Infrastructure
6 14 (0.53%) Oracle Clusterware
6 14 (0.53%) Oracle RAC
6 14 (0.53%) Virtual Machines
7 13 (0.49%) Hyper-V
8 9 (0.34%) 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 (0.23%) LXC
12 4 (0.15%) VirtualBox
13 3 (0.11%) UAG
14 2 (0.076%) Varnish
15 1 (0.038%) VMware Workstation
15 1 (0.038%) XenApp
Systems Management
1 189 (7.13%) Puppet
2 95 (3.59%) Ansible
3 70 (2.64%) Opscode Chef
4 40 (1.51%) Kubernetes
5 32 (1.21%) Kibana
5 32 (1.21%) Terraform
6 26 (0.98%) Hadoop YARN
7 25 (0.94%) Grafana
8 17 (0.64%) Rancher
9 15 (0.57%) logstash
10 14 (0.53%) Data Guard
10 14 (0.53%) Oracle Flashback
10 14 (0.53%) Oracle RMAN
11 13 (0.49%) WSUS
12 12 (0.45%) Nagios
13 11 (0.42%) StatsD
14 9 (0.34%) Oozie
14 9 (0.34%) ZABBIX
15 7 (0.26%) HP Quality Center
16 6 (0.23%) WebSphere Cast Iron
Vendors
1 329 (12.42%) Oracle
2 202 (7.63%) Microsoft
3 194 (7.32%) SAP
4 119 (4.49%) WSO2
5 111 (4.19%) Google
6 58 (2.19%) IBM
7 51 (1.93%) Perforce
8 45 (1.70%) Apigee
8 45 (1.70%) Red Hat
9 44 (1.66%) MuleSoft
10 35 (1.32%) Atlassian
11 29 (1.09%) Salesforce.com
12 28 (1.06%) Apple
12 28 (1.06%) webMethods
13 27 (1.02%) Splunk
14 24 (0.91%) Adobe
14 24 (0.91%) TIBCO
15 22 (0.83%) Xamarin
16 18 (0.68%) VMware
17 17 (0.64%) ServiceNow