Period
to 23 October 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 October 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 Oct 2018
Same period 2017 Same period 2016
Rank 109 92 98
Rank change year-on-year -17 +6 +56
Contract jobs citing JSON 2,444 2,635 2,547
As % of all contract IT jobs advertised in the UK 2.36% 2.63% 2.42%
As % of the Libraries, Frameworks & Software Standards category 6.78% 8.14% 7.94%
Number of daily rates quoted 1,667 1,799 1,822
UK median daily rate £475 £450 £425
Median daily rate % change year-on-year +5.56% +5.88% +6.25%
10th Percentile £346 £319 £310
90th Percentile £610 £600 £575
UK excluding London median daily rate £450 £425 £400
% change year-on-year +5.88% +6.25% +3.90%
Number of hourly rates quoted 12 37 12
UK median hourly rate £35.00 £45.00 £42.50
Median hourly rate % change year-on-year -22.22% +5.88% +21.43%
10th Percentile £29.15 £18.21 £30.58
90th Percentile £60.76 £63.75 £49.95
UK excluding London median hourly rate £35.00 £45.00 £42.50
% change year-on-year -22.22% +5.88% +17.24%

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 36,035 32,354 32,070
As % of all contract IT jobs advertised in the UK 34.83% 32.29% 30.43%
Number of daily rates quoted 25,391 22,723 22,288
UK median daily rate £475 £450 £425
Median daily rate % change year-on-year +5.56% +5.88% +6.25%
10th Percentile £325 £313 £296
90th Percentile £638 £625 £588
UK excluding London median daily rate £425 £400 £388
% change year-on-year +6.25% +3.23% +3.33%
Number of hourly rates quoted 316 369 377
UK median hourly rate £41.57 £40.00 £37.50
Median hourly rate % change year-on-year +3.93% +6.67% -
10th Percentile £15.94 £18.40 £13.50
90th Percentile £59.38 £52.50 £50.40
UK excluding London median hourly rate £41.25 £40.40 £36.00
% change year-on-year +2.10% +12.23% -4.00%

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 October 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 October 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 23 October 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 -6 2,279 £475 +5.56% 603
UK excluding London -28 1,333 £450 +5.88% 471
London -21 1,076 £500 +5.26% 184
South East +5 459 £463 - 108
North of England -9 276 £408 -1.21% 121
Midlands +7 211 £438 -4.89% 88
North West +21 158 £400 +6.67% 63
East of England -40 140 £525 +7.69% 47
West Midlands -1 138 £450 -9.09% 45
South West -17 115 £395 +5.33% 57
Scotland -11 109 £431 +7.81% 36
Yorkshire -13 87 £425 -5.56% 44
East Midlands +22 73 £413 -2.94% 43
North East -20 31 £450 -5.26% 14
Wales -18 27 £400 -5.88% 8
Northern Ireland -11 2 - - 8
Channel Islands -8 1 - -

For the 6 months to 23 October 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 1,295 (52.99%) Agile Software Development
2 1,094 (44.76%) Java
3 1,035 (42.35%) XML
4 948 (38.79%) JavaScript
5 923 (37.77%) REST
6 763 (31.22%) HTML
7 740 (30.28%) Git (software)
8 684 (27.99%) CSS
9 675 (27.62%) TDD
10 646 (26.43%) Web Services
11 582 (23.81%) SQL
12 566 (23.16%) SOAP
13 530 (21.69%) Scrum
14 525 (21.48%) Jenkins
15 504 (20.62%) RESTful
16 499 (20.42%) DevOps
17 470 (19.23%) Test Automation
18 460 (18.82%) Finance
19 456 (18.66%) Continuous Integration
20 451 (18.45%) C#
21 445 (18.21%) AngularJS
22 431 (17.64%) Linux
23 423 (17.31%) HTML5
24 422 (17.27%) Spring
25 418 (17.10%) Microsoft Azure
26 402 (16.45%) .NET
27 387 (15.83%) Microservices
28 384 (15.71%) JIRA
29 364 (14.89%) Node.js
30 347 (14.20%) jQuery

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
1 222 (9.08%) Confluence
2 136 (5.56%) Tomcat
3 129 (5.28%) Apache
4 107 (4.38%) Elasticsearch
5 88 (3.60%) Apache Spark
5 88 (3.60%) Mule
6 74 (3.03%) JBoss
7 69 (2.82%) CMS
7 69 (2.82%) Oracle SOA Suite
8 63 (2.58%) WebLogic
9 54 (2.21%) nginx
10 48 (1.96%) Apache Solr
11 47 (1.92%) IIS
12 42 (1.72%) Oracle Service Bus
13 40 (1.64%) WebSphere
14 26 (1.06%) Adobe Experience Manager
14 26 (1.06%) SharePoint
15 25 (1.02%) OpenStack
16 16 (0.65%) Drupal
17 15 (0.61%) Cloud Foundry
Applications
1 23 (0.94%) Microsoft Excel
2 14 (0.57%) Photoshop
3 5 (0.20%) Microsoft Office
3 5 (0.20%) MS Visio
4 4 (0.16%) Adobe Illustrator
5 3 (0.12%) Adobe Creative Suite
5 3 (0.12%) Microsoft Project
6 2 (0.082%) Maya
7 1 (0.041%) 3ds Max
7 1 (0.041%) Blender
7 1 (0.041%) Chatbot
7 1 (0.041%) InfoPath
7 1 (0.041%) InVision
7 1 (0.041%) Microsoft PowerPoint
7 1 (0.041%) Mingle
7 1 (0.041%) SketchUp
7 1 (0.041%) Spreadsheet
Business Applications
1 25 (1.02%) Dynamics CRM
2 10 (0.41%) Magento
3 7 (0.29%) Salesforce.com CRM
4 5 (0.20%) Remedy ITSM
4 5 (0.20%) SAP FI-CA
4 5 (0.20%) SAP PSCD
5 4 (0.16%) Fredhopper
5 4 (0.16%) SAP Hybris
6 3 (0.12%) Oracle EBS
6 3 (0.12%) Payment Gateway
7 2 (0.082%) BusinessWorks
7 2 (0.082%) Distributed Ledger
7 2 (0.082%) OpenCart
7 2 (0.082%) Oracle Applications
7 2 (0.082%) Oracle EBS R12
7 2 (0.082%) Oracle Financials
7 2 (0.082%) R3 Corda
7 2 (0.082%) Summit
8 1 (0.041%) Eloqua
8 1 (0.041%) ScheduALL
Cloud Services
1 418 (17.10%) Microsoft Azure
2 317 (12.97%) Amazon AWS
3 140 (5.73%) PaaS
4 133 (5.44%) GitHub
5 115 (4.71%) npm
6 110 (4.50%) IaaS
7 93 (3.81%) Amazon S3
8 89 (3.64%) Serverless
9 53 (2.17%) SaaS
10 42 (1.72%) Amazon EC2
11 38 (1.55%) AWS Lambda
12 37 (1.51%) Azure Functions
13 36 (1.47%) Azure Active Directory
14 35 (1.43%) OpenShift
15 32 (1.31%) Google Analytics
15 32 (1.31%) Google Cloud Platform
16 31 (1.27%) Apigee
17 29 (1.19%) Amazon SQS
18 26 (1.06%) BrowserStack
18 26 (1.06%) NuGet
Communications & Networking
1 268 (10.97%) HTTP
2 72 (2.95%) SSL
3 58 (2.37%) TCP/IP
4 37 (1.51%) Firewall
5 35 (1.43%) DNS
5 35 (1.43%) VPN
6 30 (1.23%) Internet
7 22 (0.90%) HTTPS
8 19 (0.78%) DHCP
9 17 (0.70%) Reverse Proxy
10 16 (0.65%) FTP
11 13 (0.53%) Network Security
12 12 (0.49%) WAN
12 12 (0.49%) X.509
13 11 (0.45%) Cisco ASA
14 9 (0.37%) AMQP
14 9 (0.37%) Bluetooth
14 9 (0.37%) IPsec
14 9 (0.37%) Remote Desktop
15 8 (0.33%) MQTT
Database & Business Intelligence
1 337 (13.79%) SQL Server
2 254 (10.39%) MongoDB
3 221 (9.04%) NoSQL
4 214 (8.76%) Relational Database
5 186 (7.61%) MySQL
6 177 (7.24%) PostgreSQL
7 134 (5.48%) Hadoop
8 129 (5.28%) Big Data
9 74 (3.03%) RDBMS
10 65 (2.66%) HBase
11 62 (2.54%) Data Warehouse
12 60 (2.45%) Oracle Database
13 55 (2.25%) Apache Cassandra
14 51 (2.09%) Redis
15 46 (1.88%) Azure SQL Database
16 37 (1.51%) SQL Server Integration Services
17 36 (1.47%) SQLite
18 35 (1.43%) SQL Server 2016
19 34 (1.39%) SQL Server Reporting Services
20 33 (1.35%) Cosmos DB
Development Applications
1 740 (30.28%) Git (software)
2 525 (21.48%) Jenkins
3 384 (15.71%) JIRA
4 255 (10.43%) Selenium
5 213 (8.72%) JUnit
6 212 (8.67%) Maven
7 187 (7.65%) Subversion
8 179 (7.32%) Cucumber
9 130 (5.32%) Visual Studio
10 120 (4.91%) Visual Studio Team System
11 109 (4.46%) Team Foundation Server
12 95 (3.89%) Eclipse
13 92 (3.76%) SoapUI
14 82 (3.36%) IntelliJ
15 78 (3.19%) Gradle
15 78 (3.19%) gulp
16 73 (2.99%) Ant
16 73 (2.99%) webpack
17 71 (2.91%) Bitbucket
18 59 (2.41%) WebDriver
General
1 460 (18.82%) Finance
2 194 (7.94%) Banking
3 94 (3.85%) Marketing
4 76 (3.11%) Telecoms
5 67 (2.74%) Manufacturing
6 65 (2.66%) Retail
7 63 (2.58%) Electronics
8 53 (2.17%) Front Office
9 43 (1.76%) Games
10 36 (1.47%) Investment Banking
11 23 (0.94%) Advertising
12 20 (0.82%) Back Office
13 19 (0.78%) Financial Institution
13 19 (0.78%) Legal
14 10 (0.41%) Law
15 8 (0.33%) Automotive
16 6 (0.25%) French Language
17 5 (0.20%) Online Betting
17 5 (0.20%) Publishing
18 4 (0.16%) Billing
Job Titles
1 1,614 (66.04%) Developer
2 499 (20.42%) Java Developer
3 212 (8.67%) Architect
4 171 (7.00%) Senior Developer
5 147 (6.01%) .NET Developer
6 113 (4.62%) C# Developer
7 111 (4.54%) React Developer
8 108 (4.42%) Front End Developer (Client-Side Developer)
9 105 (4.30%) DevOps Engineer
10 94 (3.85%) Full Stack Developer
10 94 (3.85%) JavaScript Developer
11 88 (3.60%) Scala Developer
12 84 (3.44%) Senior Java Developer
13 79 (3.23%) Agile Developer
14 77 (3.15%) Azure Engineer
15 76 (3.11%) Integration Developer
16 75 (3.07%) Lead Developer
17 69 (2.82%) UI Developer
18 65 (2.66%) Analyst
19 63 (2.58%) Consultant
Libraries, Frameworks & Software Standards
1 1,035 (42.35%) XML
2 923 (37.77%) REST
3 763 (31.22%) HTML
4 684 (27.99%) CSS
5 646 (26.43%) Web Services
6 566 (23.16%) SOAP
7 504 (20.62%) RESTful
8 445 (18.21%) AngularJS
9 423 (17.31%) HTML5
10 422 (17.27%) Spring
11 402 (16.45%) .NET
12 364 (14.89%) Node.js
13 347 (14.20%) jQuery
14 275 (11.25%) CSS3
15 252 (10.31%) React
16 213 (8.72%) J2EE
17 204 (8.35%) Ajax
18 187 (7.65%) Hibernate
19 177 (7.24%) RabbitMQ
20 162 (6.63%) Middleware
Miscellaneous
1 181 (7.41%) User Experience
2 173 (7.08%) Greenfield Project
3 153 (6.26%) Mobile App
4 119 (4.87%) Analytical Skills
5 91 (3.72%) Enterprise Software
6 76 (3.11%) Self-Motivation
7 58 (2.37%) Computer Science
8 57 (2.33%) Fintech
9 46 (1.88%) Data Structures
10 30 (1.23%) PKI
11 28 (1.15%) Public Cloud
11 28 (1.15%) Virtual Team
12 27 (1.10%) Algorithms
13 24 (0.98%) Linux Command Line
14 22 (0.90%) Data Centre
15 21 (0.86%) iPhone
16 20 (0.82%) DataPower
16 20 (0.82%) Management Information System
17 18 (0.74%) Animation
17 18 (0.74%) Fixed Income
Operating Systems
1 431 (17.64%) Linux
2 195 (7.98%) Windows
3 191 (7.82%) Unix
4 137 (5.61%) Apple iOS
5 128 (5.24%) Android
6 39 (1.60%) Windows Server
7 38 (1.55%) Ubuntu
8 27 (1.10%) Red Hat Enterprise Linux
9 16 (0.65%) Mac OS X
10 14 (0.57%) Windows Server 2012
11 11 (0.45%) CentOS
12 7 (0.29%) AIX
12 7 (0.29%) Embedded Linux
12 7 (0.29%) Windows 7
13 6 (0.25%) Windows 8
14 5 (0.20%) Debian
15 4 (0.16%) HPUX
15 4 (0.16%) Solaris
16 3 (0.12%) Mac OS
16 3 (0.12%) Windows Mobile
Processes & Methodologies
1 1,295 (52.99%) Agile Software Development
2 675 (27.62%) TDD
3 530 (21.69%) Scrum
4 499 (20.42%) DevOps
5 470 (19.23%) Test Automation
6 456 (18.66%) Continuous Integration
7 387 (15.83%) Microservices
8 342 (13.99%) MVC
9 338 (13.83%) BDD
10 247 (10.11%) Open Source
11 223 (9.12%) OO
12 212 (8.67%) Problem-Solving
12 212 (8.67%) SOA
13 195 (7.98%) Front End Development
14 181 (7.41%) Unit Testing
15 168 (6.87%) Kanban
16 153 (6.26%) Business Intelligence
17 150 (6.14%) Configuration Management
18 147 (6.01%) Analytics
19 141 (5.77%) Software Engineering
Programming Languages
1 1,094 (44.76%) Java
2 948 (38.79%) JavaScript
3 582 (23.81%) SQL
4 451 (18.45%) C#
5 269 (11.01%) Python
6 209 (8.55%) Java 8
7 185 (7.57%) Scala
8 181 (7.41%) Ruby
9 175 (7.16%) PowerShell
10 105 (4.30%) Groovy
11 97 (3.97%) PHP
12 86 (3.52%) Perl
13 85 (3.48%) PL/SQL
14 77 (3.15%) TypeScript
15 74 (3.03%) Bash Shell
15 74 (3.03%) ES6
16 67 (2.74%) Apple Swift
17 64 (2.62%) Objective-C
17 64 (2.62%) XPath
18 63 (2.58%) T-SQL
Qualifications
1 161 (6.59%) Security Cleared
2 114 (4.66%) SC Cleared
3 101 (4.13%) Degree
4 53 (2.17%) BPSS Clearance
5 34 (1.39%) Computer Science Degree
6 22 (0.90%) DV Cleared
7 14 (0.57%) AWS Certification
8 10 (0.41%) Microsoft Certification
9 9 (0.37%) ISTQB
10 7 (0.29%) CISSP
11 5 (0.20%) SSCP
12 4 (0.16%) ISEB
12 4 (0.16%) Numerate Degree
13 3 (0.12%) A+ Certification
13 3 (0.12%) MCSE
13 3 (0.12%) Sun Certification
14 2 (0.082%) CCIE
14 2 (0.082%) CCNP
14 2 (0.082%) Cisco Certification
14 2 (0.082%) TOGAF Certification
Quality Assurance & Compliance
1 108 (4.42%) QA
2 14 (0.57%) PSD2
3 11 (0.45%) Data Quality
3 11 (0.45%) WCAG
4 10 (0.41%) HMG Infosec
4 10 (0.41%) HMG Security Policy Framework
4 10 (0.41%) JSP 440
5 9 (0.37%) GDPR
6 8 (0.33%) PMO
7 5 (0.20%) PCI DSS
8 4 (0.16%) Disclosure Scotland
8 4 (0.16%) ISO 20022
8 4 (0.16%) ISO/IEC 27001
8 4 (0.16%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
8 4 (0.16%) WAI
9 3 (0.12%) ISO 9001
9 3 (0.12%) TickIT
10 2 (0.082%) HL7
11 1 (0.041%) GMP
11 1 (0.041%) MiFID
System Software
1 333 (13.63%) Docker
2 71 (2.91%) Active Directory
3 44 (1.80%) Apache ZooKeeper
4 30 (1.23%) HDFS
5 19 (0.78%) VMware Infrastructure
6 15 (0.61%) Virtual Machines
7 12 (0.49%) Hyper-V
8 8 (0.33%) VirtualBox
9 6 (0.25%) LXC
9 6 (0.25%) OpenAM
10 5 (0.20%) Postfix
11 4 (0.16%) OpenDJ
12 3 (0.12%) KVM
13 2 (0.082%) Microsoft App-V
13 2 (0.082%) NFS
13 2 (0.082%) Oracle RAC
13 2 (0.082%) vSphere
13 2 (0.082%) XenApp
13 2 (0.082%) XenDesktop
14 1 (0.041%) Veritas Cluster Server
Systems Management
1 112 (4.58%) Ansible
2 100 (4.09%) Puppet
3 72 (2.95%) Kubernetes
4 64 (2.62%) Terraform
5 62 (2.54%) Kibana
6 45 (1.84%) Opscode Chef
7 36 (1.47%) Grafana
8 35 (1.43%) Hadoop YARN
9 27 (1.10%) logstash
10 16 (0.65%) SCCM
11 14 (0.57%) SCOM
12 13 (0.53%) SCOrch
13 12 (0.49%) CloudForms
13 12 (0.49%) Single Sign-On
14 11 (0.45%) HockeyApp
15 9 (0.37%) Control-M
15 9 (0.37%) WSUS
16 8 (0.33%) Docker Swarm
16 8 (0.33%) Suricata
16 8 (0.33%) WebSphere Service Registry and Repository
Vendors
1 299 (12.23%) Microsoft
2 292 (11.95%) Oracle
3 168 (6.87%) Google
4 102 (4.17%) SAP
5 69 (2.82%) Adobe
6 67 (2.74%) WSO2
7 54 (2.21%) IBM
8 44 (1.80%) Atlassian
9 43 (1.76%) MuleSoft
10 40 (1.64%) Splunk
11 36 (1.47%) Talend
12 34 (1.39%) Apple
12 34 (1.39%) Salesforce.com
13 33 (1.35%) webMethods
14 31 (1.27%) Kony
15 29 (1.19%) VMware
16 27 (1.10%) Tableau
17 23 (0.94%) Dell
18 22 (0.90%) Cisco
18 22 (0.90%) Informatica