Period
to 23 May 2018

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 23 May 2018 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
23 May 2018
Same period 2017 Same period 2016
Rank 108 94 144
Rank change year-on-year -14 +50 +15
Contract jobs citing JSON 2,366 2,209 1,842
As % of all contract IT jobs advertised in the UK 2.35% 2.45% 1.75%
As % of the Libraries, Frameworks & Software Standards category 7.15% 7.66% 6.12%
Number of daily rates quoted 1,543 1,511 1,305
UK median daily rate £475 £450 £425
Median daily rate % change year-on-year +5.56% +5.88% +10.03%
10th Percentile £325 £313 £310
90th Percentile £600 £575 £575
UK excluding London median daily rate £450 £415 £400
% change year-on-year +8.43% +3.75% +10.34%
Number of hourly rates quoted 10 28 13
UK median hourly rate £43.75 £35.50 £50.00
Median hourly rate % change year-on-year +23.24% -29.00% +33.33%
10th Percentile £19.85 £19.25 £19.71
90th Percentile £75.00 £61.83 £57.70
UK excluding London median hourly rate £45.00 £37.00 £55.00
% change year-on-year +21.62% -32.73% +46.67%

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 33,090 28,841 30,122
As % of all contract IT jobs advertised in the UK 32.83% 31.96% 28.54%
Number of daily rates quoted 23,303 19,927 20,999
UK median daily rate £475 £438 £425
Median daily rate % change year-on-year +8.57% +2.94% +6.25%
10th Percentile £313 £300 £288
90th Percentile £625 £606 £600
UK excluding London median daily rate £413 £400 £375
% change year-on-year +3.13% +6.67% +3.45%
Number of hourly rates quoted 334 353 439
UK median hourly rate £42.27 £40.26 £38.00
Median hourly rate % change year-on-year +4.98% +5.95% +8.57%
10th Percentile £16.25 £16.03 £13.50
90th Percentile £65.83 £53.75 £57.00
UK excluding London median hourly rate £41.00 £40.00 £37.50
% change year-on-year +2.50% +6.67% +7.14%

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 23 May 2018.

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 23 May 2018.

Contractor hourly rate histogram for JSON in the UK

JSON
Top 16 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 23 May 2018. 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 -12 2,177 £475 +5.56% 589
UK excluding London -23 1,205 £450 +8.43% 422
London 0 1,101 £493 +3.68% 216
South East +7 395 £475 +11.76% 92
North of England -44 233 £425 - 107
Midlands +1 203 £400 -5.88% 81
East of England -14 154 £513 +20.59% 33
North West +12 148 £425 +3.03% 79
West Midlands -11 110 £400 -15.34% 53
East Midlands +19 92 £400 +6.67% 28
South West +3 86 £375 - 60
Scotland -17 84 £430 +18.62% 27
Yorkshire -57 60 £425 -5.56% 17
Northern Ireland +4 37 £431 +18.90% 12
North East -43 25 £398 +3.25% 11
Wales -30 15 £375 -8.54% 10

For the 6 months to 23 May 2018, 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 with a requirement for JSON.

1 1,250 (52.83%) Agile Software Development
2 1,176 (49.70%) Java
3 1,006 (42.52%) XML
4 892 (37.70%) REST
5 880 (37.19%) JavaScript
6 721 (30.47%) Git (software)
7 718 (30.35%) Web Services
8 713 (30.14%) TDD
9 650 (27.47%) HTML
10 590 (24.94%) CSS
11 549 (23.20%) RESTful
12 548 (23.16%) SQL
13 543 (22.95%) SOAP
13 543 (22.95%) Scrum
14 484 (20.46%) Continuous Integration
15 482 (20.37%) C#
16 468 (19.78%) Jenkins
17 466 (19.70%) Test Automation
18 457 (19.32%) Finance
19 454 (19.19%) Linux
20 436 (18.43%) .NET
21 434 (18.34%) AngularJS
22 433 (18.30%) DevOps
23 431 (18.22%) Spring
24 405 (17.12%) SQL Server
25 391 (16.53%) HTML5
26 386 (16.31%) jQuery
27 381 (16.10%) Node.js
28 358 (15.13%) Amazon AWS
29 337 (14.24%) Microservices

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
1 171 (7.23%) Apache
2 149 (6.30%) Confluence
3 111 (4.69%) Tomcat
4 102 (4.31%) Oracle SOA Suite
5 98 (4.14%) Apache Spark
6 93 (3.93%) Elasticsearch
7 81 (3.42%) JBoss
7 81 (3.42%) Mule
8 62 (2.62%) Oracle Service Bus
8 62 (2.62%) WebSphere
9 60 (2.54%) CMS
10 51 (2.16%) IIS
11 50 (2.11%) WebLogic
12 36 (1.52%) Cloud Foundry
13 35 (1.48%) Apache Solr
14 25 (1.06%) SharePoint
15 24 (1.01%) nginx
16 22 (0.93%) WebSphere Application Server
17 18 (0.76%) GemFire
18 15 (0.63%) Adobe Experience Manager
Applications
1 60 (2.54%) Microsoft Excel
2 16 (0.68%) Microsoft Office
3 11 (0.46%) MS Visio
4 8 (0.34%) Spreadsheet
5 7 (0.30%) Microsoft Project
5 7 (0.30%) Photoshop
6 5 (0.21%) CATIA
6 5 (0.21%) HipChat
7 4 (0.17%) Adobe Creative Suite
7 4 (0.17%) Maya
8 3 (0.13%) Adobe Illustrator
8 3 (0.13%) Blender
8 3 (0.13%) InVision
9 1 (0.042%) 3ds Max
9 1 (0.042%) Chatbot
9 1 (0.042%) InfoPath
9 1 (0.042%) Microsoft PowerPoint
Business Applications
1 10 (0.42%) Dynamics CRM
2 7 (0.30%) BusinessWorks
3 5 (0.21%) DELMIA
3 5 (0.21%) ENOVIA
3 5 (0.21%) Oracle EBS
3 5 (0.21%) Oracle ERP
4 4 (0.17%) Magento
4 4 (0.17%) Summit
5 3 (0.13%) Payment Gateway
5 3 (0.13%) Teamcenter
6 2 (0.085%) NetSuite
6 2 (0.085%) Pivotal CRM
6 2 (0.085%) Salesforce.com CRM
6 2 (0.085%) SAP PM
7 1 (0.042%) Distributed Ledger
7 1 (0.042%) Dynamics GP
7 1 (0.042%) Maximo
7 1 (0.042%) Oracle Retail
7 1 (0.042%) Remedy ITSM
7 1 (0.042%) ResourceLink
Cloud Services
1 358 (15.13%) Amazon AWS
2 333 (14.07%) Microsoft Azure
3 144 (6.09%) GitHub
4 143 (6.04%) PaaS
5 92 (3.89%) npm
6 86 (3.63%) IaaS
7 67 (2.83%) Amazon S3
8 57 (2.41%) Serverless
9 53 (2.24%) OpenShift
10 52 (2.20%) Amazon EC2
11 38 (1.61%) SaaS
12 36 (1.52%) Google Cloud Platform
13 33 (1.39%) AWS Lambda
14 31 (1.31%) AWS CloudFormation
15 28 (1.18%) Virtual Private Cloud
16 21 (0.89%) Azure Active Directory
17 20 (0.85%) BrowserStack
18 19 (0.80%) Amazon ELB
18 19 (0.80%) Boomi
18 19 (0.80%) Route 53
Communications & Networking
1 140 (5.92%) HTTP
2 49 (2.07%) Firewall
3 44 (1.86%) TCP/IP
4 42 (1.78%) SSL
5 36 (1.52%) DNS
6 33 (1.39%) Internet
7 22 (0.93%) VPN
8 20 (0.85%) FTP
9 16 (0.68%) Network Security
10 14 (0.59%) Intranet
11 13 (0.55%) HTTPS
11 13 (0.55%) WAN
12 12 (0.51%) SMS
13 11 (0.46%) LAN
14 10 (0.42%) AMQP
14 10 (0.42%) DHCP
14 10 (0.42%) Intrusion Detection
15 8 (0.34%) MPLS
16 7 (0.30%) Bluetooth
16 7 (0.30%) VLAN
Database & Business Intelligence
1 405 (17.12%) SQL Server
2 270 (11.41%) Relational Database
3 187 (7.90%) MySQL
3 187 (7.90%) PostgreSQL
4 179 (7.57%) NoSQL
5 170 (7.19%) Big Data
6 153 (6.47%) Hadoop
7 148 (6.26%) MongoDB
8 112 (4.73%) HBase
9 100 (4.23%) RDBMS
10 78 (3.30%) Oracle Database
11 54 (2.28%) Data Warehouse
12 45 (1.90%) SQL Server 2014
13 40 (1.69%) Amazon RDS
14 39 (1.65%) Apache Cassandra
14 39 (1.65%) DB2
15 38 (1.61%) SQL Server Integration Services
16 37 (1.56%) SQL Server 2012
17 34 (1.44%) Apache Hive
17 34 (1.44%) Cosmos DB
Development Applications
1 721 (30.47%) Git (software)
2 468 (19.78%) Jenkins
3 316 (13.36%) JIRA
4 241 (10.19%) JUnit
5 223 (9.43%) Maven
6 192 (8.11%) Cucumber
7 180 (7.61%) Selenium
8 168 (7.10%) Subversion
9 150 (6.34%) Visual Studio
10 130 (5.49%) Eclipse
11 127 (5.37%) Gradle
12 107 (4.52%) Visual Studio Team System
13 100 (4.23%) Team Foundation Server
14 77 (3.25%) gulp
15 75 (3.17%) IntelliJ
16 71 (3.00%) NUnit
17 67 (2.83%) Mockito
18 60 (2.54%) Ant
19 55 (2.32%) TeamCity
20 51 (2.16%) Grunt
General
1 457 (19.32%) Finance
2 172 (7.27%) Banking
3 89 (3.76%) Telecoms
4 78 (3.30%) Marketing
5 70 (2.96%) Manufacturing
6 61 (2.58%) Electronics
7 50 (2.11%) Games
8 44 (1.86%) Retail
9 33 (1.39%) Front Office
9 33 (1.39%) Legal
10 21 (0.89%) Investment Banking
11 15 (0.63%) Financial Institution
12 14 (0.59%) Law
13 13 (0.55%) Back Office
14 12 (0.51%) Advertising
15 10 (0.42%) Retail Banking
16 7 (0.30%) Publishing
17 5 (0.21%) Billing
17 5 (0.21%) Pharmaceutical
17 5 (0.21%) Spanish Language
Job Titles
1 1,516 (64.07%) Developer
2 435 (18.39%) Java Developer
3 230 (9.72%) Architect
4 203 (8.58%) Senior Developer
5 153 (6.47%) .NET Developer
6 131 (5.54%) C# Developer
6 131 (5.54%) Front End Developer (Client-Side Developer)
7 115 (4.86%) JavaScript Developer
8 102 (4.31%) React Developer
9 100 (4.23%) Full Stack Developer
10 93 (3.93%) DevOps Engineer
11 89 (3.76%) C# .NET Developer
12 87 (3.68%) Agile Developer
13 81 (3.42%) Integration Developer
14 79 (3.34%) Android Developer
15 72 (3.04%) Node.js Developer
16 71 (3.00%) Analyst
17 70 (2.96%) Software Engineer
18 69 (2.92%) Scala Developer
19 68 (2.87%) Senior Java Developer
Libraries, Frameworks & Software Standards
1 1,006 (42.52%) XML
2 892 (37.70%) REST
3 718 (30.35%) Web Services
4 650 (27.47%) HTML
5 590 (24.94%) CSS
6 549 (23.20%) RESTful
7 543 (22.95%) SOAP
8 436 (18.43%) .NET
9 434 (18.34%) AngularJS
10 431 (18.22%) Spring
11 391 (16.53%) HTML5
12 386 (16.31%) jQuery
13 381 (16.10%) Node.js
14 287 (12.13%) CSS3
15 279 (11.79%) React
16 255 (10.78%) Ajax
17 206 (8.71%) J2EE
18 196 (8.28%) Middleware
19 180 (7.61%) Hibernate
20 171 (7.23%) Kafka
Miscellaneous
1 222 (9.38%) Greenfield Project
2 211 (8.92%) User Experience
3 177 (7.48%) Mobile App
4 107 (4.52%) Analytical Skills
5 67 (2.83%) Computer Science
6 53 (2.24%) Linux Command Line
6 53 (2.24%) Virtual Team
7 46 (1.94%) Clustering
8 45 (1.90%) Data Structures
8 45 (1.90%) Self-Motivation
9 44 (1.86%) Enterprise Software
10 34 (1.44%) Algorithms
11 27 (1.14%) Animation
12 24 (1.01%) Management Information System
13 23 (0.97%) Fat Client
13 23 (0.97%) Thin Client
14 21 (0.89%) Data Centre
15 19 (0.80%) DataPower
15 19 (0.80%) Hybrid Cloud
16 18 (0.76%) Derivative
Operating Systems
1 454 (19.19%) Linux
2 243 (10.27%) Unix
3 197 (8.33%) Windows
4 167 (7.06%) Android
5 120 (5.07%) Apple iOS
6 65 (2.75%) Windows Server
7 49 (2.07%) Red Hat Enterprise Linux
8 29 (1.23%) Mac OS X
9 24 (1.01%) Ubuntu
10 16 (0.68%) Windows Server 2012
11 15 (0.63%) CentOS
12 11 (0.46%) HPUX
12 11 (0.46%) Solaris
13 10 (0.42%) Debian
14 9 (0.38%) Windows 7
15 8 (0.34%) Windows 8
16 7 (0.30%) Mac OS
17 3 (0.13%) SUSE
17 3 (0.13%) Windows 2000 Server
17 3 (0.13%) Windows Server 2008
Processes & Methodologies
1 1,250 (52.83%) Agile Software Development
2 713 (30.14%) TDD
3 543 (22.95%) Scrum
4 484 (20.46%) Continuous Integration
5 466 (19.70%) Test Automation
6 433 (18.30%) DevOps
7 337 (14.24%) Microservices
8 320 (13.52%) MVC
9 312 (13.19%) OO
10 311 (13.14%) BDD
11 254 (10.74%) SOA
12 218 (9.21%) Unit Testing
13 197 (8.33%) Front End Development
14 188 (7.95%) Problem-Solving
15 177 (7.48%) Open Source
16 165 (6.97%) Software Engineering
17 138 (5.83%) Web Development
18 133 (5.62%) OOP
19 131 (5.54%) Business Intelligence
20 127 (5.37%) Continuous Delivery
Programming Languages
1 1,176 (49.70%) Java
2 880 (37.19%) JavaScript
3 548 (23.16%) SQL
4 482 (20.37%) C#
5 291 (12.30%) Python
6 208 (8.79%) Java 8
7 183 (7.73%) Scala
8 168 (7.10%) Ruby
9 155 (6.55%) PowerShell
10 109 (4.61%) Shell Script
11 97 (4.10%) XPath
12 89 (3.76%) ES6
13 83 (3.51%) TypeScript
14 79 (3.34%) PHP
15 72 (3.04%) Bash Shell
15 72 (3.04%) Perl
16 69 (2.92%) PL/SQL
17 65 (2.75%) Groovy
18 57 (2.41%) C++
19 40 (1.69%) T-SQL
Qualifications
1 156 (6.59%) Degree
2 152 (6.42%) Security Cleared
3 118 (4.99%) SC Cleared
4 37 (1.56%) Computer Science Degree
5 29 (1.23%) BPSS Clearance
6 20 (0.85%) Numerate Degree
7 19 (0.80%) DV Cleared
8 11 (0.46%) TOGAF Certification
9 10 (0.42%) ISTQB
10 8 (0.34%) AWS Certification
10 8 (0.34%) ISEB
11 7 (0.30%) CESG Certified Professional
11 7 (0.30%) CISSP
11 7 (0.30%) IISP
12 6 (0.25%) GCFA
12 6 (0.25%) GCIA
12 6 (0.25%) GCIH
12 6 (0.25%) GIAC
12 6 (0.25%) GSEC
12 6 (0.25%) Master's Degree
Quality Assurance & Compliance
1 96 (4.06%) QA
2 24 (1.01%) MiFID
3 16 (0.68%) Data Quality
4 15 (0.63%) Dodd-Frank
4 15 (0.63%) EMIR
4 15 (0.63%) GCP
5 10 (0.42%) Disclosure Scotland
5 10 (0.42%) ISO/IEC 27001
6 8 (0.34%) CESG Infosec
6 8 (0.34%) HMG Security Policy Framework
6 8 (0.34%) PMO
6 8 (0.34%) PSD2
7 7 (0.30%) GDPR
8 6 (0.25%) ISO 20022
9 5 (0.21%) WAI
10 4 (0.17%) WCAG
11 3 (0.13%) HL7
12 2 (0.085%) PCI DSS
12 2 (0.085%) Sarbanes-Oxley
12 2 (0.085%) SLA
System Software
1 276 (11.67%) Docker
2 98 (4.14%) Active Directory
3 72 (3.04%) Apache ZooKeeper
4 69 (2.92%) HDFS
5 29 (1.23%) Hyper-V
6 28 (1.18%) Virtual Machines
7 14 (0.59%) VMware Infrastructure
8 6 (0.25%) vSphere
9 5 (0.21%) Oracle RAC
10 4 (0.17%) Apache Flume
11 3 (0.13%) KVM
11 3 (0.13%) LXC
11 3 (0.13%) Veritas Cluster Server
12 2 (0.085%) Firmware
12 2 (0.085%) NFS
12 2 (0.085%) Squid
12 2 (0.085%) Varnish
12 2 (0.085%) VirtualBox
12 2 (0.085%) Xen
12 2 (0.085%) XenApp
Systems Management
1 107 (4.52%) Puppet
2 97 (4.10%) Ansible
3 66 (2.79%) Opscode Chef
4 56 (2.37%) Terraform
5 54 (2.28%) Hadoop YARN
6 42 (1.78%) Kubernetes
7 24 (1.01%) Grafana
8 16 (0.68%) Kibana
8 16 (0.68%) Nagios
9 14 (0.59%) BladeLogic
10 12 (0.51%) Graylog
10 12 (0.51%) logstash
11 10 (0.42%) SCOM
11 10 (0.42%) SCVMM
12 9 (0.38%) HP Quality Center
13 8 (0.34%) Failover Clustering
13 8 (0.34%) IBM BigFix
13 8 (0.34%) Oozie
13 8 (0.34%) Single Sign-On
14 7 (0.30%) Control-M
Vendors
1 312 (13.19%) Oracle
2 250 (10.57%) Microsoft
3 100 (4.23%) Google
4 80 (3.38%) SAP
5 70 (2.96%) IBM
6 57 (2.41%) WSO2
7 54 (2.28%) Red Hat
8 52 (2.20%) Perforce
9 51 (2.16%) Salesforce.com
10 50 (2.11%) Splunk
11 41 (1.73%) Atlassian
12 38 (1.61%) Adobe
13 31 (1.31%) Tableau
14 28 (1.18%) Cloudera
15 27 (1.14%) Capita
16 25 (1.06%) Talend
17 23 (0.97%) MuleSoft
17 23 (0.97%) VMware
18 21 (0.89%) Apigee
19 20 (0.85%) Cisco