Period
to 17 August 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 17 August 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
17 Aug 2018
Same period 2017 Same period 2016
Rank 106 91 123
Rank change year-on-year -15 +32 +35
Contract jobs citing JSON 2,531 2,567 2,223
As % of all contract IT jobs advertised in the UK 2.46% 2.68% 2.04%
As % of the Libraries, Frameworks & Software Standards category 7.13% 8.27% 7.01%
Number of daily rates quoted 1,673 1,732 1,556
UK median daily rate £470 £450 £425
Median daily rate % change year-on-year +4.44% +5.88% +6.25%
10th Percentile £335 £319 £311
90th Percentile £600 £588 £556
UK excluding London median daily rate £450 £425 £400
% change year-on-year +5.88% +6.25% +6.67%
Number of hourly rates quoted 13 38 11
UK median hourly rate £45.00 £39.75 £45.00
Median hourly rate % change year-on-year +13.21% -11.67% +34.33%
10th Percentile £21.70 £18.47 £20.78
90th Percentile £72.19 £63.75 £57.50
UK excluding London median hourly rate £45.00 £41.50 £42.50
% change year-on-year +8.43% -2.35% +13.33%

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 35,514 31,046 31,700
As % of all contract IT jobs advertised in the UK 34.46% 32.43% 29.14%
Number of daily rates quoted 25,084 21,414 22,172
UK median daily rate £475 £450 £425
Median daily rate % change year-on-year +5.56% +5.88% +6.25%
10th Percentile £320 £306 £294
90th Percentile £625 £625 £588
UK excluding London median daily rate £425 £400 £383
% change year-on-year +6.19% +4.58% +2.00%
Number of hourly rates quoted 346 386 384
UK median hourly rate £41.52 £40.00 £36.00
Median hourly rate % change year-on-year +3.79% +11.11% -2.76%
10th Percentile £15.24 £16.00 £12.25
90th Percentile £57.50 £53.75 £50.00
UK excluding London median hourly rate £40.25 £40.00 £36.00
% change year-on-year +0.63% +11.11% -2.70%

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 17 August 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 17 August 2018.

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 17 August 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 -8 2,320 £475 +2.76% 529
UK excluding London -22 1,347 £450 +5.88% 408
London -9 1,130 £488 +2.63% 178
South East -12 426 £475 +2.70% 76
North of England -12 295 £414 -2.07% 98
Midlands +5 199 £425 -8.11% 62
North West +32 181 £400 - 66
East of England -30 169 £525 +10.53% 48
Scotland -8 115 £450 +16.13% 33
West Midlands -29 103 £450 -7.83% 29
South West -24 99 £375 +1.01% 66
East Midlands +13 96 £413 +3.13% 33
Yorkshire -38 79 £450 +2.86% 27
North East -32 35 £394 -2.42% 5
Wales -10 27 £400 -5.88% 13
Northern Ireland +2 23 £431 +7.75% 12
Channel Islands -7 1 - -

For the 6 months to 17 August 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 1,335 (52.75%) Agile Software Development
2 1,222 (48.28%) Java
3 1,094 (43.22%) XML
4 997 (39.39%) JavaScript
5 928 (36.67%) REST
6 784 (30.98%) HTML
7 763 (30.15%) Git (software)
8 741 (29.28%) TDD
9 723 (28.57%) Web Services
10 706 (27.89%) CSS
11 583 (23.03%) Scrum
12 577 (22.80%) RESTful
13 576 (22.76%) SQL
14 561 (22.17%) SOAP
15 498 (19.68%) Jenkins
16 491 (19.40%) Continuous Integration
17 489 (19.32%) Finance
18 485 (19.16%) Test Automation
19 481 (19.00%) C#
20 473 (18.69%) DevOps
21 468 (18.49%) Linux
22 465 (18.37%) AngularJS
23 461 (18.21%) .NET
24 456 (18.02%) Spring
25 441 (17.42%) HTML5
26 410 (16.20%) SQL Server
26 410 (16.20%) Node.js
27 407 (16.08%) jQuery
28 374 (14.78%) Microsoft Azure
29 364 (14.38%) 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
1 205 (8.10%) Confluence
2 148 (5.85%) Tomcat
3 145 (5.73%) Apache
4 116 (4.58%) Apache Spark
5 103 (4.07%) Elasticsearch
6 101 (3.99%) Oracle SOA Suite
7 91 (3.60%) Mule
8 71 (2.81%) WebLogic
9 69 (2.73%) JBoss
10 66 (2.61%) IIS
11 60 (2.37%) Oracle Service Bus
12 58 (2.29%) CMS
13 52 (2.05%) WebSphere
14 44 (1.74%) nginx
15 41 (1.62%) Apache Solr
16 33 (1.30%) SharePoint
17 30 (1.19%) Cloud Foundry
18 24 (0.95%) GemFire
19 23 (0.91%) Adobe Experience Manager
20 22 (0.87%) WebSphere Application Server
Applications
1 38 (1.50%) Microsoft Excel
2 15 (0.59%) Microsoft Office
3 11 (0.43%) MS Visio
3 11 (0.43%) Photoshop
4 7 (0.28%) Microsoft Project
5 5 (0.20%) Adobe Creative Suite
5 5 (0.20%) CATIA
5 5 (0.20%) Maya
6 4 (0.16%) Adobe Illustrator
6 4 (0.16%) Blender
7 3 (0.12%) InVision
8 1 (0.040%) 3ds Max
8 1 (0.040%) HipChat
8 1 (0.040%) InfoPath
8 1 (0.040%) Microsoft PowerPoint
8 1 (0.040%) SketchUp
8 1 (0.040%) Spreadsheet
Business Applications
1 18 (0.71%) Dynamics CRM
2 7 (0.28%) Magento
3 6 (0.24%) Oracle EBS
4 5 (0.20%) BusinessWorks
4 5 (0.20%) DELMIA
4 5 (0.20%) ENOVIA
5 3 (0.12%) Oracle ERP
5 3 (0.12%) Teamcenter
6 2 (0.079%) Payment Gateway
6 2 (0.079%) Remedy ITSM
6 2 (0.079%) SAP Hybris
6 2 (0.079%) SAP PM
6 2 (0.079%) Summit
7 1 (0.040%) Distributed Ledger
7 1 (0.040%) NetSuite
7 1 (0.040%) Oracle Retail
7 1 (0.040%) R3 Corda
7 1 (0.040%) Salesforce.com CRM
7 1 (0.040%) ScheduALL
7 1 (0.040%) TIBCO BusinessEvents
Cloud Services
1 374 (14.78%) Microsoft Azure
2 331 (13.08%) Amazon AWS
3 154 (6.08%) PaaS
4 125 (4.94%) npm
5 119 (4.70%) GitHub
6 94 (3.71%) Amazon S3
6 94 (3.71%) IaaS
7 58 (2.29%) Serverless
8 43 (1.70%) OpenShift
9 42 (1.66%) SaaS
10 40 (1.58%) Amazon EC2
11 28 (1.11%) Amazon SQS
12 26 (1.03%) Azure Functions
12 26 (1.03%) BrowserStack
12 26 (1.03%) Google Cloud Platform
13 25 (0.99%) AWS Lambda
14 22 (0.87%) Azure Active Directory
14 22 (0.87%) Force.com
14 22 (0.87%) Google Analytics
15 20 (0.79%) AWS CloudFormation
Communications & Networking
1 232 (9.17%) HTTP
2 58 (2.29%) TCP/IP
3 53 (2.09%) SSL
4 41 (1.62%) DNS
5 36 (1.42%) Internet
6 32 (1.26%) Firewall
7 25 (0.99%) FTP
8 24 (0.95%) VPN
9 20 (0.79%) HTTPS
10 15 (0.59%) DHCP
11 14 (0.55%) Reverse Proxy
12 13 (0.51%) AMQP
12 13 (0.51%) Cisco ASA
13 11 (0.43%) Network Security
14 10 (0.40%) WAN
15 9 (0.36%) SSH
15 9 (0.36%) X.509
16 8 (0.32%) DSL
16 8 (0.32%) IPsec
16 8 (0.32%) Remote Desktop
Database & Business Intelligence
1 410 (16.20%) SQL Server
2 265 (10.47%) Relational Database
3 223 (8.81%) MongoDB
4 212 (8.38%) NoSQL
5 209 (8.26%) PostgreSQL
6 198 (7.82%) MySQL
7 168 (6.64%) Big Data
8 161 (6.36%) Hadoop
9 101 (3.99%) HBase
10 83 (3.28%) RDBMS
11 71 (2.81%) Oracle Database
12 62 (2.45%) Data Warehouse
13 50 (1.98%) Apache Cassandra
14 46 (1.82%) Redis
15 44 (1.74%) Cosmos DB
16 43 (1.70%) DB2
16 43 (1.70%) SQL Server 2012
17 38 (1.50%) Azure SQL Database
18 35 (1.38%) SQL Server 2016
19 34 (1.34%) SQL Server 2014
Development Applications
1 763 (30.15%) Git (software)
2 498 (19.68%) Jenkins
3 360 (14.22%) JIRA
4 244 (9.64%) JUnit
5 223 (8.81%) Selenium
6 222 (8.77%) Maven
7 196 (7.74%) Subversion
8 192 (7.59%) Cucumber
9 144 (5.69%) Visual Studio
10 125 (4.94%) Visual Studio Team System
11 118 (4.66%) Eclipse
12 108 (4.27%) Gradle
13 104 (4.11%) Team Foundation Server
14 87 (3.44%) IntelliJ
15 85 (3.36%) gulp
16 75 (2.96%) SoapUI
17 69 (2.73%) Ant
18 64 (2.53%) Grunt
19 60 (2.37%) Bitbucket
20 58 (2.29%) webpack
General
1 489 (19.32%) Finance
2 168 (6.64%) Banking
3 102 (4.03%) Marketing
4 95 (3.75%) Telecoms
5 70 (2.77%) Manufacturing
6 68 (2.69%) Electronics
7 63 (2.49%) Retail
8 45 (1.78%) Games
9 39 (1.54%) Front Office
10 27 (1.07%) Legal
11 24 (0.95%) Investment Banking
12 19 (0.75%) Financial Institution
13 18 (0.71%) Advertising
14 11 (0.43%) Back Office
15 10 (0.40%) Law
16 8 (0.32%) Publishing
17 7 (0.28%) Automotive
18 5 (0.20%) Pharmaceutical
19 4 (0.16%) Retail Banking
19 4 (0.16%) Spanish Language
Job Titles
1 1,719 (67.92%) Developer
2 515 (20.35%) Java Developer
3 235 (9.28%) Architect
4 167 (6.60%) .NET Developer
5 165 (6.52%) Senior Developer
6 136 (5.37%) C# Developer
7 131 (5.18%) React Developer
8 127 (5.02%) Front End Developer (Client-Side Developer)
9 121 (4.78%) JavaScript Developer
10 115 (4.54%) Full Stack Developer
11 92 (3.63%) DevOps Engineer
12 91 (3.60%) Integration Developer
13 85 (3.36%) Scala Developer
14 76 (3.00%) C# .NET Developer
15 74 (2.92%) Lead Developer
16 73 (2.88%) Applications Developer
16 73 (2.88%) UI Developer
17 69 (2.73%) Azure Engineer
18 66 (2.61%) Agile Developer
18 66 (2.61%) Android Developer
Libraries, Frameworks & Software Standards
1 1,094 (43.22%) XML
2 928 (36.67%) REST
3 784 (30.98%) HTML
4 723 (28.57%) Web Services
5 706 (27.89%) CSS
6 577 (22.80%) RESTful
7 561 (22.17%) SOAP
8 465 (18.37%) AngularJS
9 461 (18.21%) .NET
10 456 (18.02%) Spring
11 441 (17.42%) HTML5
12 410 (16.20%) Node.js
13 407 (16.08%) jQuery
14 321 (12.68%) CSS3
15 286 (11.30%) React
16 263 (10.39%) Ajax
17 232 (9.17%) J2EE
18 209 (8.26%) Middleware
19 206 (8.14%) RabbitMQ
20 200 (7.90%) Hibernate
Miscellaneous
1 230 (9.09%) User Experience
2 215 (8.49%) Greenfield Project
3 183 (7.23%) Mobile App
4 106 (4.19%) Analytical Skills
5 72 (2.84%) Self-Motivation
6 69 (2.73%) Enterprise Software
7 68 (2.69%) Computer Science
8 45 (1.78%) Data Structures
9 44 (1.74%) Virtual Team
10 42 (1.66%) Fintech
11 40 (1.58%) Linux Command Line
12 37 (1.46%) Algorithms
13 34 (1.34%) Animation
14 24 (0.95%) Clustering
15 22 (0.87%) DataPower
16 21 (0.83%) Data Centre
16 21 (0.83%) PKI
17 19 (0.75%) Replication
18 17 (0.67%) Foreign Exchange (FX)
19 16 (0.63%) Wiki
Operating Systems
1 468 (18.49%) Linux
2 228 (9.01%) Unix
3 193 (7.63%) Windows
4 147 (5.81%) Android
5 133 (5.25%) Apple iOS
6 59 (2.33%) Windows Server
7 40 (1.58%) Ubuntu
8 32 (1.26%) Red Hat Enterprise Linux
9 20 (0.79%) CentOS
9 20 (0.79%) Mac OS X
9 20 (0.79%) Windows Server 2012
10 9 (0.36%) Debian
11 8 (0.32%) AIX
11 8 (0.32%) Mac OS
12 6 (0.24%) HPUX
12 6 (0.24%) Solaris
13 5 (0.20%) Embedded Linux
14 4 (0.16%) Windows 7
14 4 (0.16%) Windows Server 2008
15 3 (0.12%) Windows 2000 Server
Processes & Methodologies
1 1,335 (52.75%) Agile Software Development
2 741 (29.28%) TDD
3 583 (23.03%) Scrum
4 491 (19.40%) Continuous Integration
5 485 (19.16%) Test Automation
6 473 (18.69%) DevOps
7 364 (14.38%) Microservices
8 357 (14.11%) MVC
9 326 (12.88%) BDD
10 322 (12.72%) OO
11 250 (9.88%) SOA
12 225 (8.89%) Open Source
13 219 (8.65%) Front End Development
14 211 (8.34%) Problem-Solving
15 206 (8.14%) Unit Testing
16 151 (5.97%) Business Intelligence
17 149 (5.89%) Web Development
18 147 (5.81%) OOP
19 146 (5.77%) Kanban
20 145 (5.73%) SDLC
Programming Languages
1 1,222 (48.28%) Java
2 997 (39.39%) JavaScript
3 576 (22.76%) SQL
4 481 (19.00%) C#
5 302 (11.93%) Python
6 212 (8.38%) Java 8
7 195 (7.70%) Scala
8 186 (7.35%) Ruby
9 160 (6.32%) PowerShell
10 93 (3.67%) PHP
11 91 (3.60%) Groovy
12 90 (3.56%) ES6
13 86 (3.40%) Bash Shell
14 81 (3.20%) Perl
15 79 (3.12%) TypeScript
16 77 (3.04%) XPath
17 66 (2.61%) Shell Script
18 62 (2.45%) C++
18 62 (2.45%) PL/SQL
19 53 (2.09%) T-SQL
Qualifications
1 177 (6.99%) Security Cleared
2 139 (5.49%) Degree
3 129 (5.10%) SC Cleared
4 43 (1.70%) BPSS Clearance
5 36 (1.42%) Computer Science Degree
6 24 (0.95%) DV Cleared
7 12 (0.47%) Numerate Degree
8 11 (0.43%) ISTQB
9 10 (0.40%) AWS Certification
10 7 (0.28%) CESG Certified Professional
10 7 (0.28%) IISP
10 7 (0.28%) Microsoft Certification
11 6 (0.24%) ISEB
11 6 (0.24%) TOGAF Certification
12 5 (0.20%) CISMP
12 5 (0.20%) MCSE
13 4 (0.16%) Sun Certification
14 3 (0.12%) A+ Certification
14 3 (0.12%) Cisco Certification
14 3 (0.12%) CISSP
Quality Assurance & Compliance
1 86 (3.40%) QA
2 18 (0.71%) Data Quality
3 12 (0.47%) GCP
3 12 (0.47%) PMO
4 10 (0.40%) GDPR
5 8 (0.32%) PSD2
6 5 (0.20%) Dodd-Frank
6 5 (0.20%) EMIR
6 5 (0.20%) MiFID
6 5 (0.20%) WAI
7 4 (0.16%) Disclosure Scotland
8 3 (0.12%) ISO 20022
8 3 (0.12%) WCAG
9 2 (0.079%) HL7
10 1 (0.040%) PCI DSS
10 1 (0.040%) SLA
System Software
1 316 (12.49%) Docker
2 90 (3.56%) Active Directory
3 66 (2.61%) Apache ZooKeeper
4 57 (2.25%) HDFS
5 22 (0.87%) Hyper-V
5 22 (0.87%) Virtual Machines
6 21 (0.83%) VMware Infrastructure
7 10 (0.40%) VirtualBox
8 6 (0.24%) LXC
8 6 (0.24%) vSphere
9 5 (0.20%) Oracle RAC
10 4 (0.16%) OpenAM
10 4 (0.16%) OpenDJ
10 4 (0.16%) XenApp
11 3 (0.12%) Microsoft App-V
11 3 (0.12%) Veritas Cluster Server
11 3 (0.12%) XenDesktop
12 2 (0.079%) NFS
12 2 (0.079%) Samba
12 2 (0.079%) Varnish
Systems Management
1 109 (4.31%) Puppet
2 104 (4.11%) Ansible
3 67 (2.65%) Kubernetes
4 56 (2.21%) Terraform
5 46 (1.82%) Hadoop YARN
5 46 (1.82%) Opscode Chef
6 37 (1.46%) Kibana
7 28 (1.11%) Grafana
8 13 (0.51%) SCCM
8 13 (0.51%) SCOM
9 12 (0.47%) HAProxy
9 12 (0.47%) logstash
10 11 (0.43%) Single Sign-On
11 10 (0.40%) Docker Swarm
12 9 (0.36%) Control-M
12 9 (0.36%) WSUS
13 8 (0.32%) Oozie
13 8 (0.32%) Salt
14 6 (0.24%) Prometheus
14 6 (0.24%) vCenter Server
Vendors
1 324 (12.80%) Oracle
2 271 (10.71%) Microsoft
3 126 (4.98%) Google
4 111 (4.39%) SAP
5 72 (2.84%) IBM
6 60 (2.37%) Adobe
7 49 (1.94%) Salesforce.com
7 49 (1.94%) WSO2
8 48 (1.90%) Perforce
9 46 (1.82%) Atlassian
10 41 (1.62%) Tableau
11 35 (1.38%) Splunk
12 32 (1.26%) MuleSoft
13 31 (1.22%) Talend
14 30 (1.19%) VMware
15 28 (1.11%) Cloudera
16 27 (1.07%) Red Hat
17 25 (0.99%) Kony
18 24 (0.95%) Cisco
19 21 (0.83%) Informatica