The following table provides summary statistics for contract job vacancies advertised in Hertfordshire with a requirement for Unix skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Unix over the 3 months to 23 March 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.

3 months to
23 Mar 2017
Same period 2016 Same period 2015
Unix
East of England / Hertfordshire
Rank 42 30 29
Rank change year-on-year -12 -1  
Contract jobs citing Unix 17 25 41
As % of all contract IT jobs advertised in Hertfordshire 2.79% 3.73% 5.88%
As % of the Operating Systems category 14.91% 18.25% 23.16%
Number of daily rates quoted 12 13 19
Median daily rate £370 £445 £388
Median daily rate % change year-on-year -16.85% +14.83%  
90% offered a daily rate of more than £268 £300 £220
10% offered a daily rate of more than £550 £545 £500
UK excluding London median daily rate £425 £400 £375
% change year-on-year +6.25% +6.66%  
Number of hourly rates quoted 2 0 0
Median hourly rate £31.50 - -
UK excluding London median hourly rate £31.50 £35.00 £35.50
% change year-on-year -10.00% -1.40%  

Unix is in the operating system skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Hertfordshire with a requirement for operating system skills.

Contract Operating System Skills
Hertfordshire
Contract job vacancies with a requirement for operating system skills 114 137 177
As % of all contract IT job vacancies advertised in Hertfordshire 18.72% 20.42% 25.39%
Number of daily rates quoted 62 69 73
Median daily rate £300 £388 £375
Median daily rate % change year-on-year -22.58% +3.33%  
90% offered a daily rate of more than £160 £185 £170
10% offered a daily rate of more than £550 £525 £500
UK excluding London median daily rate £388 £363 £335
% change year-on-year +6.89% +8.20%  
Number of hourly rates quoted 10 17 28
Median hourly rate £14.50 £16.00 £14.85
Median hourly rate % change year-on-year -9.37% +7.74%  
90% offered a hourly rate of more than £12.50 £13.50 £9.25
10% offered a hourly rate of more than £31.50 £38.00 £25.00
UK excluding London median hourly rate £15.15 £16.50 £15.50
% change year-on-year -8.18% +6.45%  

Unix
Job Vacancy Trend in Hertfordshire

The job posting trend of jobs advertised in Hertfordshire citing Unix as a proportion of all contract or permanent IT jobs with a match in the Operating Systems category.

Job vacancy trend for Unix in Hertfordshire

Unix
Contractor Daily Rate Trend in Hertfordshire

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

Contractor daily rate trend for Unix in Hertfordshire

Unix
Contractor Daily Rate Histogram in Hertfordshire

The daily rate distribution of IT jobs citing Unix in Hertfordshire over the 3 months to 23 March 2017.

Contractor daily rate histogram for Unix in Hertfordshire

Unix
Contractor Hourly Rate Trend in Hertfordshire

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

Contractor hourly rate trend for Unix in Hertfordshire

Unix
Contract Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Unix within the Hertfordshire region over the 3 months to 23 March 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Hatfield -5 8 £538 +2.38% 1
Watford -16 2 £265 -35.75% 4
Hemel Hempstead +3 1 £180 -57.39% 1
Stevenage +1 1 - -
Welwyn Garden City - 1 - -
Rickmansworth - 1 £313 -
Unix
East of England

Unix
Top 30 Related IT Skills in Hertfordshire

For the 6 months to 23 March 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 Hertfordshire region with a requirement for Unix.

1 42 (72.41%) Linux
2 25 (43.10%) Windows
3 16 (27.59%) SQL
4 15 (25.86%) Agile Software Development
5 14 (24.14%) Java
6 13 (22.41%) Shell Script
6 13 (22.41%) DevOps
7 11 (18.97%) Active Directory
7 11 (18.97%) Oracle
8 10 (17.24%) QA
9 9 (15.52%) Continuous Integration
9 9 (15.52%) SC Cleared
9 9 (15.52%) Security Cleared
9 9 (15.52%) Perl
9 9 (15.52%) EFT
10 8 (13.79%) Internet
10 8 (13.79%) Red Hat
10 8 (13.79%) Open Source
10 8 (13.79%) Analytical Skills
10 8 (13.79%) Opscode Chef
11 7 (12.07%) Mentoring
11 7 (12.07%) Red Hat Enterprise Linux
11 7 (12.07%) TDD
11 7 (12.07%) Spring
11 7 (12.07%) IBM
11 7 (12.07%) Solaris
11 7 (12.07%) Web Services
12 6 (10.34%) Apache
12 6 (10.34%) FTP
12 6 (10.34%) SOA

Unix
Top Related IT Skills in Hertfordshire 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 6 (10.34%) Apache
2 5 (8.62%) Oracle Service Bus
2 5 (8.62%) Oracle SOA Suite
2 5 (8.62%) WebLogic
3 4 (6.90%) WebSphere
4 3 (5.17%) Tomcat
5 2 (3.45%) Confluence
5 2 (3.45%) nginx
6 1 (1.72%) IIS
Applications
1 2 (3.45%) MS Office
2 1 (1.72%) Windchill
Business Applications
1 2 (3.45%) Magento
1 2 (3.45%) Oracle EBS
1 2 (3.45%) Oracle EBS R12
2 1 (1.72%) Teamcenter
Cloud Services
1 3 (5.17%) Amazon AWS
2 1 (1.72%) GitHub
Communications & Networking
1 8 (13.79%) Internet
2 6 (10.34%) FTP
3 4 (6.90%) LDAP
4 3 (5.17%) Firewall
4 3 (5.17%) LAN
5 2 (3.45%) DHCP
5 2 (3.45%) DNS
5 2 (3.45%) TCP/IP
6 1 (1.72%) OpenLDAP
6 1 (1.72%) WAN
6 1 (1.72%) Wireless
6 1 (1.72%) WLAN
Database & Business Intelligence
1 6 (10.34%) Big Data
2 5 (8.62%) Apache Cassandra
2 5 (8.62%) NoSQL
3 4 (6.90%) SQL Server
4 3 (5.17%) Oracle Database
5 2 (3.45%) DB2
5 2 (3.45%) DbVisualizer
5 2 (3.45%) Oracle Database 12c
5 2 (3.45%) PostgreSQL
6 1 (1.72%) BusinessObjects XI
6 1 (1.72%) MySQL
6 1 (1.72%) Oracle BI Publisher
6 1 (1.72%) Oracle Database 11g
6 1 (1.72%) Oracle Reports
6 1 (1.72%) SQL Server 2005
Development Applications
1 6 (10.34%) Cucumber
2 5 (8.62%) JIRA
3 4 (6.90%) Git (software)
3 4 (6.90%) Jenkins
3 4 (6.90%) Selenium
3 4 (6.90%) SoapUI
3 4 (6.90%) WebDriver
4 2 (3.45%) Appium
4 2 (3.45%) Atlassian Bamboo
4 2 (3.45%) HP UFT
4 2 (3.45%) JBehave
4 2 (3.45%) JUnit
4 2 (3.45%) Maven
4 2 (3.45%) Mockito
4 2 (3.45%) Moq
4 2 (3.45%) TeamCity
5 1 (1.72%) Android Studio
5 1 (1.72%) Eclipse
General
1 5 (8.62%) Finance
2 4 (6.90%) Banking
3 3 (5.17%) Advertising
3 3 (5.17%) Retail
4 2 (3.45%) Financial Institution
4 2 (3.45%) Telecoms
5 1 (1.72%) Back Office
5 1 (1.72%) Games
5 1 (1.72%) Manufacturing
5 1 (1.72%) Publishing
Job Titles
1 9 (15.52%) Consultant
2 7 (12.07%) Service Desk Engineer
2 7 (12.07%) Unix Consultant
3 6 (10.34%) Analyst
3 6 (10.34%) Developer
4 5 (8.62%) Java Developer
5 4 (6.90%) Applications Support
5 4 (6.90%) Architect
5 4 (6.90%) Automation Tester
5 4 (6.90%) AWS DevOps
5 4 (6.90%) Java Automation Tester
5 4 (6.90%) Selenium Automation Tester
5 4 (6.90%) Selenium Tester
5 4 (6.90%) Senior Developer
5 4 (6.90%) Senior Java Developer
5 4 (6.90%) Support Engineer
5 4 (6.90%) Tester
6 3 (5.17%) Active Directory Engineer
6 3 (5.17%) Senior DevOps
6 3 (5.17%) Service Desk Support
Libraries, Frameworks & Software Standards
1 7 (12.07%) Spring
1 7 (12.07%) Web Services
2 6 (10.34%) Middleware
2 6 (10.34%) Oracle Fusion
3 5 (8.62%) XML
4 4 (6.90%) Gherkin
4 4 (6.90%) HTML
5 3 (5.17%) .NET
5 3 (5.17%) J2EE
5 3 (5.17%) JSON
5 3 (5.17%) REST
5 3 (5.17%) RESTful
6 2 (3.45%) .NET Framework
6 2 (3.45%) Hibernate
6 2 (3.45%) LAMP
6 2 (3.45%) SOAP
7 1 (1.72%) ASP.NET
7 1 (1.72%) Classic ASP
7 1 (1.72%) JMS
7 1 (1.72%) XML Messaging
Miscellaneous
1 9 (15.52%) EFT
2 8 (13.79%) Analytical Skills
3 5 (8.62%) Client/Server
4 3 (5.17%) Data Centre
4 3 (5.17%) Linux Command Line
5 1 (1.72%) Computer Science
5 1 (1.72%) EPoS
5 1 (1.72%) iPad
5 1 (1.72%) Management Information System
5 1 (1.72%) Mobile App
5 1 (1.72%) Security Operations Centre
5 1 (1.72%) Wiki
Operating Systems
1 42 (72.41%) Linux
2 25 (43.10%) Windows
3 7 (12.07%) Red Hat Enterprise Linux
3 7 (12.07%) Solaris
4 2 (3.45%) Windows Server 2008
5 1 (1.72%) Android
5 1 (1.72%) Apple iOS
5 1 (1.72%) Windows 7
5 1 (1.72%) Windows Mobile
5 1 (1.72%) Windows Server
5 1 (1.72%) Windows Server 2012
Processes & Methodologies
1 15 (25.86%) Agile Software Development
2 13 (22.41%) DevOps
3 9 (15.52%) Continuous Integration
4 8 (13.79%) Open Source
5 7 (12.07%) Mentoring
5 7 (12.07%) TDD
6 6 (10.34%) Service Design
6 6 (10.34%) SOA
6 6 (10.34%) Test Automation
7 5 (8.62%) Business Activity Monitoring
7 5 (8.62%) Cybersecurity
7 5 (8.62%) OO
8 4 (6.90%) BDD
8 4 (6.90%) E-Commerce
8 4 (6.90%) Information Security
8 4 (6.90%) ITIL
8 4 (6.90%) Technical Analysis
8 4 (6.90%) Test Scripting
9 3 (5.17%) SIEM
9 3 (5.17%) Software Testing
Programming Languages
1 16 (27.59%) SQL
2 14 (24.14%) Java
3 13 (22.41%) Shell Script
4 9 (15.52%) Perl
5 4 (6.90%) C
5 4 (6.90%) C#
5 4 (6.90%) JavaScript
5 4 (6.90%) Python
6 3 (5.17%) PowerShell
7 2 (3.45%) C++
7 2 (3.45%) PL/SQL
7 2 (3.45%) Ruby
8 1 (1.72%) VB
Qualifications
1 9 (15.52%) SC Cleared
1 9 (15.52%) Security Cleared
2 3 (5.17%) Degree
3 2 (3.45%) HNC
4 1 (1.72%) CISM
4 1 (1.72%) CISSP
4 1 (1.72%) IISP
4 1 (1.72%) ISEB
4 1 (1.72%) Oracle Certification
Quality Assurance & Compliance
1 10 (17.24%) QA
2 2 (3.45%) ISO/IEC 27001
2 2 (3.45%) PCI DSS
2 2 (3.45%) SDET
2 2 (3.45%) SLA
System Software
1 11 (18.97%) Active Directory
2 2 (3.45%) Docker
2 2 (3.45%) FreeRADIUS
2 2 (3.45%) vSphere
3 1 (1.72%) Oracle RAC
3 1 (1.72%) VMware Infrastructure
Systems Management
1 8 (13.79%) Opscode Chef
2 5 (8.62%) Puppet
3 2 (3.45%) Nagios
4 1 (1.72%) Ansible
4 1 (1.72%) CA Single Sign-On
4 1 (1.72%) Data Guard
4 1 (1.72%) Enterprise Manager Cloud Control
4 1 (1.72%) Host Intrusion Detection System
4 1 (1.72%) Nessus
4 1 (1.72%) OpenView
4 1 (1.72%) Oracle Enterprise Manager
4 1 (1.72%) Oracle RMAN
4 1 (1.72%) Packer
4 1 (1.72%) SCCM
4 1 (1.72%) Terraform
Vendors
1 11 (18.97%) Oracle
2 8 (13.79%) Red Hat
3 7 (12.07%) IBM
4 4 (6.90%) Dell
5 3 (5.17%) Cisco
5 3 (5.17%) HP
5 3 (5.17%) Microsoft
5 3 (5.17%) VMware
6 2 (3.45%) Atlassian
6 2 (3.45%) hybris
6 2 (3.45%) Sun
7 1 (1.72%) CA
7 1 (1.72%) Citrix
7 1 (1.72%) PTC
7 1 (1.72%) Remedy
7 1 (1.72%) Retalix
7 1 (1.72%) SAP
7 1 (1.72%) Siemens
7 1 (1.72%) Splunk
7 1 (1.72%) Toshiba