Period
to 18 February 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 18 February 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
18 Feb 2018
Same period 2017 Same period 2016
Rank 102 93 154
Rank change year-on-year -9 +61 +7
Contract jobs citing JSON 2,333 2,362 1,745
As % of all contract IT jobs advertised in the UK 2.34% 2.48% 1.62%
As % of the Libraries, Frameworks & Software Standards category 7.32% 7.87% 5.58%
Number of daily rates quoted 1,614 1,616 1,281
UK median daily rate £450 £434 £400
Median daily rate % change year-on-year +3.69% +8.50% +1.60%
10th Percentile £319 £313 £300
90th Percentile £602 £575 £550
UK excluding London median daily rate £448 £410 £388
% change year-on-year +9.15% +5.81% +3.33%
Number of hourly rates quoted 15 26 12
UK median hourly rate £62.50 £35.50 £43.25
Median hourly rate % change year-on-year +76.06% -17.92% +15.33%
10th Percentile £26.35 £23.63 £20.20
90th Percentile £63.75 £44.13 £57.73
UK excluding London median hourly rate £62.50 £36.00 £50.00
% change year-on-year +73.61% -28.00% +33.33%

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 31,860 30,025 31,270
As % of all contract IT jobs advertised in the UK 31.90% 31.54% 28.96%
Number of daily rates quoted 22,699 20,767 21,661
UK median daily rate £463 £425 £415
Median daily rate % change year-on-year +8.82% +2.41% +3.75%
10th Percentile £313 £300 £281
90th Percentile £625 £600 £588
UK excluding London median daily rate £400 £400 £375
% change year-on-year - +6.67% +3.45%
Number of hourly rates quoted 336 337 550
UK median hourly rate £40.00 £40.00 £38.50
Median hourly rate % change year-on-year - +3.90% +10.00%
10th Percentile £18.13 £15.40 £16.25
90th Percentile £53.75 £52.00 £56.58
UK excluding London median hourly rate £41.61 £38.63 £39.00
% change year-on-year +7.73% -0.96% +11.43%

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 18 February 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 18 February 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 18 February 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 -7 2,175 £470 +7.43% 632
UK excluding London +3 1,204 £448 +9.15% 493
London -17 1,092 £475 +1.50% 190
South East +25 385 £464 +9.12% 100
North of England -34 232 £425 - 156
East of England +25 201 £500 +42.86% 55
Midlands +14 172 £413 -1.79% 80
North West +5 139 £400 -0.12% 94
West Midlands +15 102 £425 -1.73% 45
South West -16 93 £400 +12.68% 51
Scotland +12 85 £400 +6.67% 26
East Midlands -4 68 £400 +6.67% 35
Yorkshire -58 49 £438 -2.78% 47
North East -9 41 £475 +20.63% 15
Northern Ireland +13 35 £425 +21.43% 10
Wales -64 9 £400 -5.88% 15
Channel Islands +2 2 - -

For the 6 months to 18 February 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 1,322 (56.67%) Agile Software Development
2 1,225 (52.51%) Java
3 973 (41.71%) XML
4 856 (36.69%) REST
5 851 (36.48%) JavaScript
6 715 (30.65%) Web Services
7 671 (28.76%) Git (software)
8 669 (28.68%) HTML
9 649 (27.82%) TDD
10 600 (25.72%) RESTful
11 585 (25.08%) CSS
12 551 (23.62%) Scrum
13 550 (23.57%) SQL
14 546 (23.40%) SOAP
15 522 (22.37%) Spring
16 479 (20.53%) Linux
17 465 (19.93%) Finance
18 446 (19.12%) Jenkins
19 426 (18.26%) Test Automation
20 421 (18.05%) Continuous Integration
21 412 (17.66%) C#
22 404 (17.32%) HTML5
23 397 (17.02%) .NET
24 384 (16.46%) DevOps
25 375 (16.07%) AngularJS
26 356 (15.26%) Node.js
27 354 (15.17%) SQL Server
28 345 (14.79%) Amazon AWS
29 336 (14.40%) jQuery
30 306 (13.12%) 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
1 166 (7.12%) Apache
2 113 (4.84%) Confluence
2 113 (4.84%) Tomcat
3 107 (4.59%) JBoss
4 90 (3.86%) Oracle SOA Suite
5 70 (3.00%) Mule
6 65 (2.79%) Apache Spark
7 63 (2.70%) Elasticsearch
8 49 (2.10%) CMS
9 47 (2.01%) Oracle Service Bus
10 46 (1.97%) WebSphere
11 36 (1.54%) Apache Solr
11 36 (1.54%) WebLogic
12 31 (1.33%) Cloud Foundry
13 25 (1.07%) IIS
14 24 (1.03%) nginx
15 22 (0.94%) SharePoint
16 15 (0.64%) BizTalk Server
16 15 (0.64%) MQSeries
17 13 (0.56%) WildFly
Applications
1 37 (1.59%) Microsoft Excel
2 9 (0.39%) HipChat
2 9 (0.39%) MS Visio
3 7 (0.30%) Adobe Illustrator
3 7 (0.30%) Pipeline Pilot
3 7 (0.30%) Spreadsheet
4 6 (0.26%) Photoshop
5 4 (0.17%) Microsoft Office
6 2 (0.086%) Chatbot
6 2 (0.086%) InfoPath
7 1 (0.043%) Gephi
7 1 (0.043%) InVision
Business Applications
1 30 (1.29%) Payment Gateway
2 11 (0.47%) Dynamics CRM
2 11 (0.47%) Magento
3 3 (0.13%) BusinessWorks
3 3 (0.13%) Oracle ERP
3 3 (0.13%) Social Studio
3 3 (0.13%) Summit
3 3 (0.13%) WebTrends
4 2 (0.086%) NetSuite
4 2 (0.086%) Oracle EBS
4 2 (0.086%) Remedy ITSM
4 2 (0.086%) SAP BPC
4 2 (0.086%) SAP HCM
5 1 (0.043%) OpenText Process Suite
5 1 (0.043%) Oracle BPM
5 1 (0.043%) Oracle SCM
5 1 (0.043%) Pivotal CRM
5 1 (0.043%) ResourceLink
5 1 (0.043%) SAP CRM
5 1 (0.043%) SAP PM
Cloud Services
1 345 (14.79%) Amazon AWS
2 228 (9.77%) Microsoft Azure
3 167 (7.16%) GitHub
4 112 (4.80%) PaaS
5 80 (3.43%) IaaS
6 73 (3.13%) npm
7 60 (2.57%) Amazon EC2
8 57 (2.44%) Serverless
9 49 (2.10%) Amazon S3
9 49 (2.10%) SaaS
10 41 (1.76%) AWS Lambda
11 36 (1.54%) Virtual Private Cloud
12 34 (1.46%) AWS CloudFormation
13 30 (1.29%) Amazon ELB
14 29 (1.24%) OpenShift
15 28 (1.20%) Google Cloud Platform
16 25 (1.07%) Route 53
17 21 (0.90%) Cloud Computing
18 19 (0.81%) Boomi
19 18 (0.77%) Azure Active Directory
Communications & Networking
1 140 (6.00%) HTTP
2 65 (2.79%) Internet
3 64 (2.74%) TCP/IP
4 61 (2.61%) SSL
5 50 (2.14%) Firewall
6 48 (2.06%) DNS
7 25 (1.07%) VPN
8 23 (0.99%) Bluetooth
9 18 (0.77%) Wi-Fi
10 17 (0.73%) FTP
11 14 (0.60%) Network Security
12 13 (0.56%) SMS
12 13 (0.56%) WAN
13 12 (0.51%) LAN
14 11 (0.47%) MPLS
15 10 (0.43%) HTTPS
15 10 (0.43%) Intranet
16 9 (0.39%) DHCP
16 9 (0.39%) Intrusion Detection
16 9 (0.39%) SSH
Database & Business Intelligence
1 354 (15.17%) SQL Server
2 250 (10.72%) Relational Database
3 194 (8.32%) MongoDB
4 193 (8.27%) NoSQL
5 166 (7.12%) MySQL
6 160 (6.86%) Big Data
7 157 (6.73%) PostgreSQL
8 125 (5.36%) Hadoop
9 110 (4.71%) RDBMS
10 83 (3.56%) Oracle Database
11 75 (3.21%) HBase
12 62 (2.66%) Redis
13 42 (1.80%) Apache Cassandra
14 35 (1.50%) Amazon RDS
14 35 (1.50%) SQL Server Integration Services
15 32 (1.37%) SQL Server 2014
16 28 (1.20%) Parquet
17 26 (1.11%) Power BI
18 25 (1.07%) Apache Hive
18 25 (1.07%) SQL Server 2012
Development Applications
1 671 (28.76%) Git (software)
2 446 (19.12%) Jenkins
3 278 (11.92%) JIRA
4 230 (9.86%) JUnit
5 224 (9.60%) Maven
6 178 (7.63%) Cucumber
7 170 (7.29%) Selenium
8 150 (6.43%) Subversion
9 135 (5.79%) Visual Studio
10 122 (5.23%) Eclipse
11 119 (5.10%) Gradle
12 100 (4.29%) IntelliJ
13 88 (3.77%) Team Foundation Server
14 83 (3.56%) TeamCity
15 81 (3.47%) Mockito
16 65 (2.79%) gulp
17 58 (2.49%) webpack
18 54 (2.31%) GitLab
19 53 (2.27%) NUnit
19 53 (2.27%) SoapUI
General
1 465 (19.93%) Finance
2 195 (8.36%) Banking
3 91 (3.90%) Marketing
4 84 (3.60%) Manufacturing
5 83 (3.56%) Telecoms
6 63 (2.70%) Electronics
7 56 (2.40%) Retail
8 45 (1.93%) Games
9 40 (1.71%) Legal
10 19 (0.81%) Front Office
11 18 (0.77%) Investment Banking
12 17 (0.73%) Law
12 17 (0.73%) Retail Banking
13 15 (0.64%) Advertising
14 14 (0.60%) Back Office
15 12 (0.51%) Billing
15 12 (0.51%) Publishing
16 6 (0.26%) Automotive
16 6 (0.26%) Music Industry
17 5 (0.21%) French Language
Job Titles
1 1,540 (66.01%) Developer
2 523 (22.42%) Java Developer
3 215 (9.22%) Senior Developer
4 209 (8.96%) Architect
5 152 (6.52%) JavaScript Developer
6 127 (5.44%) Full Stack Developer
7 124 (5.32%) Front End Developer (Client-Side Developer)
8 123 (5.27%) .NET Developer
9 110 (4.71%) C# Developer
10 100 (4.29%) Agile Developer
11 92 (3.94%) DevOps Engineer
12 87 (3.73%) Android Developer
13 82 (3.51%) Analyst
14 80 (3.43%) Scala Developer
14 80 (3.43%) Senior Java Developer
15 79 (3.39%) React Developer
15 79 (3.39%) Software Engineer
16 75 (3.21%) Integration Developer
17 74 (3.17%) SQL Developer
18 71 (3.04%) C# .NET Developer
Libraries, Frameworks & Software Standards
1 973 (41.71%) XML
2 856 (36.69%) REST
3 715 (30.65%) Web Services
4 669 (28.68%) HTML
5 600 (25.72%) RESTful
6 585 (25.08%) CSS
7 546 (23.40%) SOAP
8 522 (22.37%) Spring
9 404 (17.32%) HTML5
10 397 (17.02%) .NET
11 375 (16.07%) AngularJS
12 356 (15.26%) Node.js
13 336 (14.40%) jQuery
14 275 (11.79%) CSS3
15 231 (9.90%) React
16 216 (9.26%) Ajax
17 202 (8.66%) J2EE
18 174 (7.46%) Middleware
19 161 (6.90%) Hibernate
20 142 (6.09%) Kafka
Miscellaneous
1 184 (7.89%) User Experience
2 162 (6.94%) Greenfield Project
3 141 (6.04%) Mobile App
4 106 (4.54%) Analytical Skills
5 96 (4.11%) Computer Science
6 90 (3.86%) Data Structures
7 54 (2.31%) Enterprise Software
8 51 (2.19%) Linux Command Line
9 43 (1.84%) Virtual Team
10 35 (1.50%) Management Information System
11 30 (1.29%) Clustering
11 30 (1.29%) Video on Demand
12 29 (1.24%) Algorithms
13 24 (1.03%) Data Centre
14 23 (0.99%) Video\Live Streaming
15 22 (0.94%) DataPower
15 22 (0.94%) Foreign Exchange (FX)
15 22 (0.94%) Hybrid Cloud
16 20 (0.86%) Fat Client
16 20 (0.86%) Thin Client
Operating Systems
1 479 (20.53%) Linux
2 237 (10.16%) Unix
3 187 (8.02%) Windows
4 175 (7.50%) Android
5 114 (4.89%) Apple iOS
6 85 (3.64%) Red Hat Enterprise Linux
7 62 (2.66%) Windows Server
8 43 (1.84%) Mac OS X
9 26 (1.11%) Windows Server 2012
10 15 (0.64%) Solaris
11 14 (0.60%) HPUX
12 12 (0.51%) Windows 7
13 11 (0.47%) Ubuntu
13 11 (0.47%) Windows 8
14 8 (0.34%) CentOS
15 4 (0.17%) Windows Server 2008
16 2 (0.086%) AIX
16 2 (0.086%) Fedora
16 2 (0.086%) Windows 10
17 1 (0.043%) Amazon Linux
Processes & Methodologies
1 1,322 (56.67%) Agile Software Development
2 649 (27.82%) TDD
3 551 (23.62%) Scrum
4 426 (18.26%) Test Automation
5 421 (18.05%) Continuous Integration
6 384 (16.46%) DevOps
7 306 (13.12%) Microservices
8 295 (12.64%) MVC
9 281 (12.04%) BDD
10 265 (11.36%) OO
11 244 (10.46%) SOA
12 219 (9.39%) Unit Testing
13 195 (8.36%) Open Source
14 191 (8.19%) Front End Development
15 186 (7.97%) Web Development
16 181 (7.76%) Kanban
17 178 (7.63%) Software Engineering
18 158 (6.77%) Continuous Delivery
19 139 (5.96%) Configuration Management
20 133 (5.70%) Business Intelligence
Programming Languages
1 1,225 (52.51%) Java
2 851 (36.48%) JavaScript
3 550 (23.57%) SQL
4 412 (17.66%) C#
5 237 (10.16%) Python
6 191 (8.19%) Scala
7 179 (7.67%) Ruby
8 125 (5.36%) Shell Script
9 109 (4.67%) PowerShell
10 96 (4.11%) ES6
11 95 (4.07%) XPath
12 93 (3.99%) PHP
13 85 (3.64%) PL/SQL
14 75 (3.21%) TypeScript
15 70 (3.00%) Perl
16 69 (2.96%) T-SQL
17 67 (2.87%) Apple Swift
17 67 (2.87%) Groovy
18 55 (2.36%) Bash Shell
19 54 (2.31%) C++
Qualifications
1 174 (7.46%) Degree
2 165 (7.07%) Security Cleared
3 123 (5.27%) SC Cleared
4 62 (2.66%) Computer Science Degree
5 19 (0.81%) DV Cleared
6 14 (0.60%) Numerate Degree
7 12 (0.51%) AWS Certification
8 9 (0.39%) BPSS Clearance
9 8 (0.34%) CISSP
9 8 (0.34%) Master's Degree
10 7 (0.30%) GCED
10 7 (0.30%) GCFA
10 7 (0.30%) GCIA
10 7 (0.30%) GCIH
10 7 (0.30%) GIAC
10 7 (0.30%) GREM
10 7 (0.30%) GSEC
10 7 (0.30%) PhD
11 6 (0.26%) Microsoft Certification
12 5 (0.21%) ISEB
Quality Assurance & Compliance
1 116 (4.97%) QA
2 38 (1.63%) Data Quality
3 31 (1.33%) MiFID
4 19 (0.81%) GDPR
5 17 (0.73%) Disclosure Scotland
6 15 (0.64%) PCI DSS
7 13 (0.56%) EMIR
8 12 (0.51%) Dodd-Frank
8 12 (0.51%) GCP
9 11 (0.47%) ISO/IEC 27001
10 9 (0.39%) CESG Infosec
10 9 (0.39%) HL7
10 9 (0.39%) HMG Security Policy Framework
11 7 (0.30%) SLA
12 5 (0.21%) PMO
13 4 (0.17%) ISO 20022
13 4 (0.17%) PSD2
13 4 (0.17%) WCAG
14 2 (0.086%) Sarbanes-Oxley
System Software
1 279 (11.96%) Docker
2 79 (3.39%) Active Directory
3 52 (2.23%) Apache ZooKeeper
4 47 (2.01%) HDFS
5 24 (1.03%) Hyper-V
6 17 (0.73%) Virtual Machines
7 15 (0.64%) VMware Infrastructure
8 14 (0.60%) Oracle Clusterware
8 14 (0.60%) Oracle RAC
9 12 (0.51%) Firmware
10 10 (0.43%) Apache Flume
11 9 (0.39%) Microsoft Virtual Server
11 9 (0.39%) Virtual Servers
12 4 (0.17%) LXC
13 3 (0.13%) KVM
14 1 (0.043%) VMware Workstation
14 1 (0.043%) Xen
14 1 (0.043%) XenApp
Systems Management
1 184 (7.89%) Puppet
2 95 (4.07%) Ansible
3 79 (3.39%) Opscode Chef
4 46 (1.97%) Hadoop YARN
5 45 (1.93%) Kubernetes
5 45 (1.93%) Terraform
6 40 (1.71%) Grafana
7 31 (1.33%) Kibana
8 25 (1.07%) Nagios
9 21 (0.90%) logstash
10 19 (0.81%) WSUS
11 18 (0.77%) Graylog
11 18 (0.77%) Single Sign-On
12 14 (0.60%) BladeLogic
12 14 (0.60%) Data Guard
12 14 (0.60%) Oracle Flashback
12 14 (0.60%) Oracle RMAN
13 13 (0.56%) Rundeck
14 12 (0.51%) StatsD
15 11 (0.47%) Tivoli
Vendors
1 294 (12.60%) Oracle
2 235 (10.07%) Microsoft
3 85 (3.64%) Google
4 74 (3.17%) SAP
5 61 (2.61%) WSO2
6 60 (2.57%) Red Hat
7 55 (2.36%) IBM
7 55 (2.36%) Splunk
8 46 (1.97%) Apigee
9 35 (1.50%) Perforce
10 32 (1.37%) Atlassian
11 30 (1.29%) Salesforce.com
12 29 (1.24%) webMethods
13 27 (1.16%) Adobe
14 26 (1.11%) TIBCO
15 24 (1.03%) Apple
15 24 (1.03%) MuleSoft
16 21 (0.90%) Xamarin
17 18 (0.77%) Capita
17 18 (0.77%) VMware