Period
to 20 May 2018

The following table provides summary statistics for contract job vacancies advertised in Croydon with a requirement for JUnit skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited JUnit over the 6 months to 20 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.

JUnit
South London > Croydon
6 months to
20 May 2018
Same period 2017 Same period 2016
Rank 38 30 40
Rank change year-on-year -8 +10 -3
Contract jobs citing JUnit 74 18 17
As % of all contract IT jobs advertised in Croydon 6.50% 4.96% 3.19%
As % of the Development Applications category 20.85% 18.00% 15.60%
Number of daily rates quoted 54 3 6
Croydon median daily rate £550 £450 £408
Median daily rate % change year-on-year +22.22% +10.43% -
10th Percentile £408 £385 £344
90th Percentile £588 £524 £450
South London median daily rate £550 £481 £438
% change year-on-year +14.29% +10.00% -
Number of hourly rates quoted 0 0 0
Croydon median hourly rate - - -
South London median hourly rate - - -

JUnit is in the Development Applications category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Croydon with a requirement for development application skills.

All Development Application Skills
Croydon
Contract vacancies with a requirement for development application skills 355 100 109
As % of all contract IT jobs advertised in Croydon 31.20% 27.55% 20.45%
Number of daily rates quoted 249 42 79
Croydon median daily rate £475 £450 £425
Median daily rate % change year-on-year +5.56% +5.88% +13.33%
10th Percentile £390 £363 £310
90th Percentile £602 £540 £510
South London median daily rate £475 £450 £425
% change year-on-year +5.56% +5.88% +15.25%
Number of hourly rates quoted 0 0 1
Croydon median hourly rate - - £43.00
South London median hourly rate £40.71 £51.25 £43.00
% change year-on-year -20.58% +19.19% -

JUnit
Job Vacancy Trend in Croydon

Job postings citing JUnit as a percentage of all IT jobs advertised in Croydon.

Job vacancy trend for JUnit in Croydon

JUnit
Contractor Daily Rate Trend in Croydon

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing JUnit in Croydon.

Contractor daily rate trend for JUnit in Croydon

JUnit
Contractor Daily Rate Histogram in Croydon

The daily rate distribution of IT jobs citing JUnit in Croydon over the 6 months to 20 May 2018.

Contractor daily rate histogram for JUnit in Croydon

For the 6 months to 20 May 2018, IT contractor jobs citing JUnit 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 across the Croydon region with a requirement for JUnit.

1 70 (94.59%) Java
2 62 (83.78%) Mockito
3 61 (82.43%) RESTful
3 61 (82.43%) Git (software)
3 61 (82.43%) Agile Software Development
4 57 (77.03%) Microservices
5 56 (75.68%) SonarQube
5 56 (75.68%) Maven
6 50 (67.57%) REST
7 48 (64.86%) OO
8 46 (62.16%) Confluence
8 46 (62.16%) JIRA
9 44 (59.46%) Java 8
10 42 (56.76%) JAX-RS
10 42 (56.76%) Test Automation
11 39 (52.70%) Linux Command Line
12 38 (51.35%) Relational Database
12 38 (51.35%) Liquibase
12 38 (51.35%) Domain-Driven Design
12 38 (51.35%) JMS
12 38 (51.35%) RDBMS
13 37 (50.00%) OOA/OOD
13 37 (50.00%) Unix
13 37 (50.00%) Checkstyle
13 37 (50.00%) Dependency Injection
13 37 (50.00%) Lambda Expressions
13 37 (50.00%) CQRS
13 37 (50.00%) JPQL
14 36 (48.65%) WireMock
14 36 (48.65%) Drools

JUnit
Co-occurring IT Skills in Croydon 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 46 (62.16%) Confluence
2 21 (28.38%) WildFly
3 13 (17.57%) Tomcat
4 8 (10.81%) Apache
5 4 (5.41%) Apache ServiceMix
6 3 (4.05%) Apache Spark
6 3 (4.05%) JBoss
7 2 (2.70%) Elasticsearch
Cloud Services
1 33 (44.59%) Amazon AWS
2 18 (24.32%) Amazon EC2
3 2 (2.70%) Amazon CloudWatch
3 2 (2.70%) Amazon ELB
3 2 (2.70%) Amazon S3
3 2 (2.70%) Virtual Private Cloud
4 1 (1.35%) AWS Lambda
4 1 (1.35%) Sauce Labs
Communications & Networking
1 2 (2.70%) DNS
1 2 (2.70%) HTTP
1 2 (2.70%) OpenLDAP
1 2 (2.70%) OpenVPN
1 2 (2.70%) SSH
Database & Business Intelligence
1 38 (51.35%) RDBMS
1 38 (51.35%) Relational Database
2 16 (21.62%) PostgreSQL
3 3 (4.05%) DataStage
3 3 (4.05%) Hadoop
3 3 (4.05%) HBase
4 2 (2.70%) Amazon RDS
4 2 (2.70%) Big Data
5 1 (1.35%) Data Warehouse
5 1 (1.35%) SQL Server
Development Applications
1 62 (83.78%) Mockito
2 61 (82.43%) Git (software)
3 56 (75.68%) Maven
3 56 (75.68%) SonarQube
4 46 (62.16%) JIRA
5 38 (51.35%) Liquibase
6 37 (50.00%) Checkstyle
7 22 (29.73%) Jenkins
8 21 (28.38%) Vagrant
9 18 (24.32%) DbUnit
9 18 (24.32%) jMock
10 5 (6.76%) Selenium
11 4 (5.41%) Cucumber
12 3 (4.05%) Bitbucket
12 3 (4.05%) TestNG
13 2 (2.70%) Babel
13 2 (2.70%) SoapUI
13 2 (2.70%) Sonatype Nexus
13 2 (2.70%) WebDriver
13 2 (2.70%) webpack
General
1 2 (2.70%) Finance
2 1 (1.35%) Retail
Job Titles
1 50 (67.57%) Developer
2 48 (64.86%) Java Developer
3 18 (24.32%) SC Cleared Java Developer
4 7 (9.46%) BPM Developer
5 6 (8.11%) Agile Developer
5 6 (8.11%) Agile Java Developer
6 5 (6.76%) Senior Developer
6 5 (6.76%) Senior Java Developer
7 3 (4.05%) Scrum Master
7 3 (4.05%) Test Specialist
8 2 (2.70%) Automation Tester
8 2 (2.70%) Front End Developer (Client-Side Developer)
8 2 (2.70%) Full Stack Developer
8 2 (2.70%) JavaScript Developer
8 2 (2.70%) React Developer
8 2 (2.70%) Tester
8 2 (2.70%) XML Developer
9 1 (1.35%) AWS DevOps Engineer
9 1 (1.35%) Backend Developer
9 1 (1.35%) Big Data Specialist
Libraries, Frameworks & Software Standards
1 61 (82.43%) RESTful
2 50 (67.57%) REST
3 42 (56.76%) JAX-RS
4 38 (51.35%) JMS
5 37 (50.00%) Lambda Expressions
6 36 (48.65%) Drools
6 36 (48.65%) Hibernate
6 36 (48.65%) WireMock
7 30 (40.54%) Spring
8 21 (28.38%) Java EE
9 19 (25.68%) J2EE
10 18 (24.32%) PowerMock
10 18 (24.32%) SOAP
10 18 (24.32%) Web Services
11 17 (22.97%) Apache Camel
12 15 (20.27%) Spring Batch
12 15 (20.27%) Velocity
13 12 (16.22%) XML
14 2 (2.70%) CSS
14 2 (2.70%) HTML
Miscellaneous
1 39 (52.70%) Linux Command Line
2 15 (20.27%) Greenfield Project
3 1 (1.35%) Analytical Skills
3 1 (1.35%) Enterprise Software
3 1 (1.35%) NHS
3 1 (1.35%) Self-Motivation
Operating Systems
1 37 (50.00%) Unix
2 21 (28.38%) VMS
3 6 (8.11%) Linux
4 2 (2.70%) CentOS
5 1 (1.35%) Ubuntu
5 1 (1.35%) Windows
Processes & Methodologies
1 61 (82.43%) Agile Software Development
2 57 (77.03%) Microservices
3 48 (64.86%) OO
4 42 (56.76%) Test Automation
5 38 (51.35%) Domain-Driven Design
6 37 (50.00%) CQRS
6 37 (50.00%) Dependency Injection
6 37 (50.00%) OOA/OOD
7 35 (47.30%) Scrum
8 21 (28.38%) TDD
9 20 (27.03%) Continuous Integration
9 20 (27.03%) E-Commerce
10 19 (25.68%) BDD
11 17 (22.97%) Kanban
12 15 (20.27%) Virtual Infrastructure
12 15 (20.27%) Visualisation
13 4 (5.41%) Test Scripting
14 3 (4.05%) DevOps
14 3 (4.05%) Open Source
14 3 (4.05%) Validation
Programming Languages
1 70 (94.59%) Java
2 44 (59.46%) Java 8
3 37 (50.00%) JPQL
4 4 (5.41%) JavaScript
5 3 (4.05%) Scala
5 3 (4.05%) Shell Script
6 2 (2.70%) Bash Shell
6 2 (2.70%) ES6
6 2 (2.70%) Groovy
7 1 (1.35%) PL/SQL
7 1 (1.35%) SQL
Qualifications
1 31 (41.89%) Security Cleared
2 28 (37.84%) SC Cleared
3 9 (12.16%) BPSS Clearance
4 1 (1.35%) Degree
Quality Assurance & Compliance
1 4 (5.41%) Disclosure Scotland
2 1 (1.35%) GDPR
2 1 (1.35%) PMO
System Software
1 16 (21.62%) VMware Infrastructure
1 16 (21.62%) vSphere
2 3 (4.05%) Docker
2 3 (4.05%) HDFS
3 2 (2.70%) Postfix
3 2 (2.70%) Squid
3 2 (2.70%) vCloud
3 2 (2.70%) Virtual Machines
Systems Management
1 3 (4.05%) Kibana
1 3 (4.05%) Oozie
1 3 (4.05%) Puppet
2 2 (2.70%) Ansible
2 2 (2.70%) Docker Swarm
2 2 (2.70%) Kubernetes
2 2 (2.70%) logstash
2 2 (2.70%) Rancher
2 2 (2.70%) Rsyslog
2 2 (2.70%) Sysdig
2 2 (2.70%) Terraform
2 2 (2.70%) ZABBIX
3 1 (1.35%) Grafana
Vendors
1 18 (24.32%) VMware
2 2 (2.70%) Sonatype
3 1 (1.35%) Atlassian
3 1 (1.35%) Oracle