Period
to 17 November 2017

The following table provides summary statistics for contract job vacancies advertised in Croydon with a requirement for Unix skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Unix over the 6 months to 17 November 2017 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.

Unix
South London > Croydon
6 months to
17 Nov 2017
Same period 2016 Same period 2015
Rank 42 39 30
Rank change year-on-year -3 -9 -6
Contract jobs citing Unix 59 35 25
As % of all contract IT jobs advertised in Croydon 6.97% 6.32% 7.35%
As % of the Operating Systems category 26.82% 23.81% 23.36%
Number of daily rates quoted 38 16 16
Croydon median daily rate £543 £381 £450
Median daily rate % change year-on-year +42.30% -15.28% -21.05%
10th Percentile £408 £325 £393
90th Percentile £575 £481 £531
South London median daily rate £525 £410 £450
% change year-on-year +28.05% -8.89% +9.09%
Number of hourly rates quoted 0 0 0
Croydon median hourly rate - - -
South London median hourly rate - £49.19 -

Unix is in the Operating Systems 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 operating system skills.

All Operating Systems
Croydon
Contract vacancies with a requirement for operating system skills 220 147 107
As % of all contract IT jobs advertised in Croydon 25.97% 26.53% 31.47%
Number of daily rates quoted 141 61 69
Croydon median daily rate £475 £425 £450
Median daily rate % change year-on-year +11.76% -5.56% +12.50%
10th Percentile £220 £313 £299
90th Percentile £581 £523 £525
South London median daily rate £475 £425 £366
% change year-on-year +11.76% +16.25% +5.97%
Number of hourly rates quoted 1 1 4
Croydon median hourly rate £13.00 £15.00 £13.00
Median hourly rate % change year-on-year -13.33% +15.38% -16.13%
South London median hourly rate £47.83 £47.83 £17.50
% change year-on-year - +173.31% +9.38%

Unix
Job Vacancy Trend in Croydon

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

Job vacancy trend for Unix in Croydon

Unix
Contractor Daily Rate Trend in Croydon

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

Contractor daily rate trend for Unix in Croydon

Unix
Contractor Daily Rate Histogram in Croydon

The daily rate distribution of IT jobs citing Unix in Croydon over the 6 months to 17 November 2017.

Contractor daily rate histogram for Unix in Croydon

Unix
Contractor Hourly Rate Trend in Croydon

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Unix in Croydon.

Contractor hourly rate trend for Unix in Croydon

For the 6 months to 17 November 2017, IT contractor jobs citing Unix also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Croydon region with a requirement for Unix.

1 43 (72.88%) Security Cleared
2 37 (62.71%) JIRA
3 35 (59.32%) Agile Software Development
4 34 (57.63%) Confluence
5 32 (54.24%) SC Cleared
6 31 (52.54%) Java
7 29 (49.15%) Maven
8 28 (47.46%) Dependency Injection
9 27 (45.76%) Git (software)
9 27 (45.76%) RESTful
10 26 (44.07%) Relational Database
10 26 (44.07%) Microservices
10 26 (44.07%) SonarQube
11 25 (42.37%) WildFly
11 25 (42.37%) Liquibase
11 25 (42.37%) JPQL
11 25 (42.37%) Vagrant
11 25 (42.37%) Mockito
11 25 (42.37%) REST
11 25 (42.37%) CQRS
11 25 (42.37%) JAX-RS
11 25 (42.37%) Lambda Expressions
11 25 (42.37%) WireMock
11 25 (42.37%) Linux Command Line
11 25 (42.37%) Test Automation
11 25 (42.37%) Domain-Driven Design
11 25 (42.37%) Drools
11 25 (42.37%) Checkstyle
11 25 (42.37%) Java EE
11 25 (42.37%) Hibernate

Unix
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 34 (57.63%) Confluence
2 25 (42.37%) WildFly
3 7 (11.86%) Oracle SOA Suite
4 5 (8.47%) Tomcat
5 3 (5.08%) Apache
6 2 (3.39%) IIS
6 2 (3.39%) JBoss
6 2 (3.39%) MQSeries
6 2 (3.39%) OpenStack
6 2 (3.39%) WebLogic
Business Applications
1 7 (11.86%) Oracle BPM
Cloud Services
1 20 (33.90%) Amazon AWS
2 1 (1.69%) iPaaS
Communications & Networking
1 7 (11.86%) VPN
2 4 (6.78%) NAS
2 4 (6.78%) Network Security
2 4 (6.78%) TCP/IP
3 2 (3.39%) Firewall
3 2 (3.39%) FTP
3 2 (3.39%) HTTP
3 2 (3.39%) HTTPS
3 2 (3.39%) IPsec
3 2 (3.39%) LAN
3 2 (3.39%) LDAP
3 2 (3.39%) OSPF
3 2 (3.39%) SAN
3 2 (3.39%) VLAN
3 2 (3.39%) VSAN
3 2 (3.39%) WAN
4 1 (1.69%) SSL
4 1 (1.69%) tcpdump
4 1 (1.69%) Wireshark
Database & Business Intelligence
1 26 (44.07%) Relational Database
2 25 (42.37%) RDBMS
3 17 (28.81%) Hadoop
4 14 (23.73%) PostgreSQL
5 10 (16.95%) Big Data
6 9 (15.25%) Oracle Database
7 2 (3.39%) Amazon DynamoDB
7 2 (3.39%) DataStax
7 2 (3.39%) HBase
7 2 (3.39%) MongoDB
7 2 (3.39%) SQL Server
Development Applications
1 37 (62.71%) JIRA
2 29 (49.15%) Maven
3 27 (45.76%) Git (software)
4 26 (44.07%) SonarQube
5 25 (42.37%) Checkstyle
5 25 (42.37%) JUnit
5 25 (42.37%) Liquibase
5 25 (42.37%) Mockito
5 25 (42.37%) Vagrant
6 14 (23.73%) Jenkins
7 8 (13.56%) Bitbucket
8 2 (3.39%) Codeship
8 2 (3.39%) Travis CI
9 1 (1.69%) Gradle
9 1 (1.69%) Hudson
9 1 (1.69%) JMeter
9 1 (1.69%) SoapUI
9 1 (1.69%) Subversion
General
1 5 (8.47%) Finance
Job Titles
1 25 (42.37%) Developer
2 23 (38.98%) Java Developer
3 12 (20.34%) SC Cleared Java Developer
4 8 (13.56%) Lead Developer
4 8 (13.56%) Lead Java Developer
5 6 (10.17%) Administrator
6 5 (8.47%) Consultant
6 5 (8.47%) DevOps Consultant
7 4 (6.78%) AWS DevOps
7 4 (6.78%) Big Data Specialist
7 4 (6.78%) DevOps Specialist
7 4 (6.78%) Linux Administrator
7 4 (6.78%) Unix Administrator
8 3 (5.08%) Analyst
8 3 (5.08%) Hadoop Consultant
9 2 (3.39%) AWS Consultant
9 2 (3.39%) AWS DevOps Engineer
9 2 (3.39%) AWS Engineer
9 2 (3.39%) Infrastructure Architect
9 2 (3.39%) Unix Analyst
Libraries, Frameworks & Software Standards
1 27 (45.76%) RESTful
2 25 (42.37%) Drools
2 25 (42.37%) Hibernate
2 25 (42.37%) Java EE
2 25 (42.37%) JAX-RS
2 25 (42.37%) JMS
2 25 (42.37%) Lambda Expressions
2 25 (42.37%) REST
2 25 (42.37%) WireMock
3 7 (11.86%) ActiveMQ
4 3 (5.08%) Web Services
5 2 (3.39%) AngularJS
5 2 (3.39%) Apache Camel
5 2 (3.39%) Guice
5 2 (3.39%) Kafka
5 2 (3.39%) LAPP Stack
5 2 (3.39%) RESTEasy
6 1 (1.69%) D3.js
6 1 (1.69%) Highcharts JS
6 1 (1.69%) HTML5
Miscellaneous
1 25 (42.37%) Linux Command Line
2 4 (6.78%) Analytical Skills
3 3 (5.08%) Public Cloud
4 2 (3.39%) Data Centre
5 1 (1.69%) iPad
Operating Systems
1 25 (42.37%) VMS
2 24 (40.68%) Linux
3 12 (20.34%) Red Hat Enterprise Linux
4 7 (11.86%) CentOS
5 5 (8.47%) AIX
6 2 (3.39%) SUSE
6 2 (3.39%) Windows
6 2 (3.39%) Windows Server
6 2 (3.39%) Windows Server 2003
6 2 (3.39%) Windows Server 2008
6 2 (3.39%) Windows Server 2012
7 1 (1.69%) Solaris
Processes & Methodologies
1 35 (59.32%) Agile Software Development
2 28 (47.46%) Dependency Injection
3 26 (44.07%) Microservices
4 25 (42.37%) CQRS
4 25 (42.37%) Domain-Driven Design
4 25 (42.37%) OO
4 25 (42.37%) OOA/OOD
4 25 (42.37%) Test Automation
5 22 (37.29%) DevOps
6 10 (16.95%) Continuous Delivery
7 9 (15.25%) Continuous Integration
8 7 (11.86%) SOA
9 5 (8.47%) Load Balancing
9 5 (8.47%) Scrum
9 5 (8.47%) User Stories
10 4 (6.78%) Build Automation
10 4 (6.78%) Root Cause Analysis
11 3 (5.08%) Integration Testing
11 3 (5.08%) ITIL
12 2 (3.39%) BCP
Programming Languages
1 31 (52.54%) Java
2 25 (42.37%) JPQL
3 14 (23.73%) SQL
4 7 (11.86%) Python
5 5 (8.47%) Bash Shell
6 3 (5.08%) Groovy
6 3 (5.08%) JavaScript
6 3 (5.08%) Ruby
7 2 (3.39%) Go
7 2 (3.39%) Perl
7 2 (3.39%) Scala
8 1 (1.69%) Korn
8 1 (1.69%) Shell Script
Qualifications
1 43 (72.88%) Security Cleared
2 32 (54.24%) SC Cleared
3 5 (8.47%) BPSS Clearance
4 1 (1.69%) Degree
Quality Assurance & Compliance
1 2 (3.39%) Sarbanes-Oxley
1 2 (3.39%) SLA
2 1 (1.69%) QA
System Software
1 11 (18.64%) VMware Infrastructure
2 10 (16.95%) HDFS
3 8 (13.56%) vCloud
4 5 (8.47%) Docker
5 2 (3.39%) Active Directory
5 2 (3.39%) Samba
5 2 (3.39%) vSphere
6 1 (1.69%) Virtual Machines
Systems Management
1 23 (38.98%) Puppet
2 9 (15.25%) Ambari
2 9 (15.25%) ZABBIX
3 5 (8.47%) Ansible
3 5 (8.47%) Kubernetes
4 3 (5.08%) logstash
4 3 (5.08%) Terraform
5 2 (3.39%) Opscode Chef
6 1 (1.69%) Icinga
6 1 (1.69%) Nagios
Vendors
1 15 (25.42%) Oracle
2 11 (18.64%) VMware
3 10 (16.95%) Hortonworks
4 5 (8.47%) Red Hat
5 4 (6.78%) NetApp
6 3 (5.08%) F5
7 2 (3.39%) CheckPoint
7 2 (3.39%) Citrix
7 2 (3.39%) Dell
7 2 (3.39%) EMC
7 2 (3.39%) Google
7 2 (3.39%) Microsoft
7 2 (3.39%) Splunk
8 1 (1.69%) ServiceNow