Period
to 18 February 2018

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

Linux
East of England > Hertfordshire
6 months to
18 Feb 2018
Same period 2017 Same period 2016
Rank 18 13 18
Rank change year-on-year -5 +5 +2
Contract jobs citing Linux 105 117 97
As % of all contract IT jobs advertised in Hertfordshire 6.87% 8.81% 7.15%
As % of the Operating Systems category 33.33% 43.33% 28.96%
Number of daily rates quoted 50 59 51
Hertfordshire median daily rate £378 £325 £433
Median daily rate % change year-on-year +16.15% -24.86% +6.79%
10th Percentile £213 £150 £275
90th Percentile £605 £496 £538
East of England median daily rate £425 £375 £425
% change year-on-year +13.33% -11.76% +6.25%
Number of hourly rates quoted 6 1 9
Hertfordshire median hourly rate £46.50 £52.50 £42.50
Median hourly rate % change year-on-year -11.43% +23.53% +26.87%
10th Percentile £37.88 £51.25 £33.75
90th Percentile £47.25 £53.75 £54.55
East of England median hourly rate £42.50 £35.50 £37.50
% change year-on-year +19.72% -5.33% -14.29%

Linux 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 Hertfordshire with a requirement for operating system skills.

All Operating Systems
Hertfordshire
Contract vacancies with a requirement for operating system skills 315 270 335
As % of all contract IT jobs advertised in Hertfordshire 20.62% 20.33% 24.71%
Number of daily rates quoted 152 137 158
Hertfordshire median daily rate £375 £325 £358
Median daily rate % change year-on-year +15.38% -9.09% -1.38%
10th Percentile £155 £150 £145
90th Percentile £550 £525 £489
East of England median daily rate £350 £339 £350
% change year-on-year +3.32% -3.21% -
Number of hourly rates quoted 46 20 53
Hertfordshire median hourly rate £13.00 £14.50 £15.50
Median hourly rate % change year-on-year -10.34% -6.45% -0.93%
10th Percentile £10.66 £10.00 £10.50
90th Percentile £46.63 £20.40 £41.45
East of England median hourly rate £16.63 £16.75 £17.75
% change year-on-year -0.72% -5.63% +7.58%

Linux
Job Vacancy Trend in Hertfordshire

Job postings citing Linux as a percentage of all IT jobs advertised in Hertfordshire.

Job vacancy trend for Linux in Hertfordshire

Linux
Contractor Daily Rate Trend in Hertfordshire

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

Contractor daily rate trend for Linux in Hertfordshire

Linux
Contractor Daily Rate Histogram in Hertfordshire

The daily rate distribution of IT jobs citing Linux in Hertfordshire over the 6 months to 18 February 2018.

Contractor daily rate histogram for Linux in Hertfordshire

Linux
Contractor Hourly Rate Trend in Hertfordshire

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

Contractor hourly rate trend for Linux in Hertfordshire

Linux
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 Linux within the Hertfordshire region 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
Watford -14 25 £500 +5.26% 11
Welwyn Garden City -1 16 £283 +88.33% 4
Hatfield -3 12 £225 -44.44% 11
Stevenage -7 12 - - 8
Rickmansworth -1 6 - -
Hemel Hempstead -1 5 £375 -6.25% 7
St Albans -6 1 £300 - 4
Linux
East of England

For the 6 months to 18 February 2018, IT contractor jobs citing Linux 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 Hertfordshire region with a requirement for Linux.

1 38 (36.19%) Windows
2 35 (33.33%) Java
3 32 (30.48%) SQL
4 28 (26.67%) Agile Software Development
5 27 (25.71%) E-Commerce
6 22 (20.95%) Oracle
7 21 (20.00%) Unix
7 21 (20.00%) Red Hat
8 19 (18.10%) Python
9 18 (17.14%) Perl
9 18 (17.14%) PHP
10 16 (15.24%) DB2
11 15 (14.29%) JavaScript
11 15 (14.29%) MySQL
11 15 (14.29%) Apache
11 15 (14.29%) MVC
11 15 (14.29%) Analytical Skills
12 13 (12.38%) VMware
12 13 (12.38%) Tomcat
13 12 (11.43%) DevOps
13 12 (11.43%) Continuous Integration
13 12 (11.43%) Red Hat Enterprise Linux
13 12 (11.43%) Bash Shell
13 12 (11.43%) Puppet
13 12 (11.43%) High Availability
14 11 (10.48%) MongoDB
14 11 (10.48%) Security Cleared
14 11 (10.48%) HTML
14 11 (10.48%) JMeter
14 11 (10.48%) Firewall

Linux
Co-occurring 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 15 (14.29%) Apache
2 13 (12.38%) Tomcat
3 9 (8.57%) JBoss
4 8 (7.62%) Confluence
5 6 (5.71%) OpenStack
6 5 (4.76%) WebSphere
6 5 (4.76%) WebSphere Application Server
7 4 (3.81%) Apache Solr
7 4 (3.81%) nginx
8 3 (2.86%) CMS
9 2 (1.90%) Cloud Foundry
9 2 (1.90%) IIS
10 1 (0.95%) Adobe Experience Manager
10 1 (0.95%) MQSeries
10 1 (0.95%) Oracle SOA Suite
10 1 (0.95%) SharePoint
Applications
1 4 (3.81%) HipChat
2 2 (1.90%) Microsoft Office
Business Applications
1 10 (9.52%) Magento
2 6 (5.71%) Payment Gateway
3 2 (1.90%) SAP Business ByDesign
3 2 (1.90%) SAP Hybris
Cloud Services
1 9 (8.57%) Amazon AWS
2 6 (5.71%) Microsoft Azure
3 4 (3.81%) AWS CloudFormation
4 2 (1.90%) Amazon CloudWatch
4 2 (1.90%) Amazon ElastiCache
4 2 (1.90%) Amazon S3
4 2 (1.90%) AWS Lambda
4 2 (1.90%) Google Cloud Platform
4 2 (1.90%) PaaS
4 2 (1.90%) Route 53
4 2 (1.90%) Serverless
4 2 (1.90%) Virtual Private Cloud
5 1 (0.95%) Office 365
Communications & Networking
1 11 (10.48%) Firewall
2 7 (6.67%) Internet
3 6 (5.71%) TCP/IP
4 5 (4.76%) IPsec
4 5 (4.76%) VLAN
5 4 (3.81%) Diameter Protocol
5 4 (3.81%) MVNO
5 4 (3.81%) SS7
5 4 (3.81%) Value-Added Service
5 4 (3.81%) VoLTE
5 4 (3.81%) VoWiFi
5 4 (3.81%) VPN
6 3 (2.86%) HTTP
6 3 (2.86%) SAN
7 2 (1.90%) iSCSI
7 2 (1.90%) SNMP
7 2 (1.90%) SSL
7 2 (1.90%) Wireless
7 2 (1.90%) Wireshark
8 1 (0.95%) NAS
Database & Business Intelligence
1 16 (15.24%) DB2
2 15 (14.29%) MySQL
3 11 (10.48%) MongoDB
4 9 (8.57%) DbVisualizer
5 8 (7.62%) Relational Database
5 8 (7.62%) SQL Server
6 7 (6.67%) Oracle Database
6 7 (6.67%) PostgreSQL
7 6 (5.71%) RDBMS
8 5 (4.76%) Redis
9 4 (3.81%) Sybase ASE
10 3 (2.86%) Amazon RDS
11 1 (0.95%) Hazelcast
11 1 (0.95%) Jackrabbit
11 1 (0.95%) NoSQL
11 1 (0.95%) Oracle Reports
Development Applications
1 11 (10.48%) JMeter
2 10 (9.52%) Jenkins
3 9 (8.57%) JIRA
3 9 (8.57%) LoadRunner
3 9 (8.57%) The Grinder
4 8 (7.62%) Git (software)
5 6 (5.71%) Maven
6 5 (4.76%) Bitbucket
6 5 (4.76%) Gradle
6 5 (4.76%) Sonatype Nexus
7 4 (3.81%) Apache Ivy
7 4 (3.81%) Firebug
7 4 (3.81%) JUnit
7 4 (3.81%) Subversion
7 4 (3.81%) Vagrant
8 3 (2.86%) Checkstyle
8 3 (2.86%) Eclipse
8 3 (2.86%) Selenium
9 2 (1.90%) GDB
9 2 (1.90%) jMock
General
1 10 (9.52%) Telecoms
2 5 (4.76%) Finance
2 5 (4.76%) Games
3 4 (3.81%) Billing
4 3 (2.86%) Retail
5 2 (1.90%) Banking
5 2 (1.90%) Financial Institution
6 1 (0.95%) Aerospace
6 1 (0.95%) Military
Job Titles
1 30 (28.57%) Developer
2 9 (8.57%) Analyst
2 9 (8.57%) Network Engineer
3 8 (7.62%) Administrator
3 8 (7.62%) Consultant
3 8 (7.62%) Java Developer
4 7 (6.67%) DevOps Engineer
4 7 (6.67%) Support Engineer
4 7 (6.67%) Systems Administrator
5 6 (5.71%) Lead Developer
5 6 (5.71%) Linux Administrator
5 6 (5.71%) Linux Systems Administrator
5 6 (5.71%) Senior Developer
6 5 (4.76%) Magento Developer
6 5 (4.76%) Performance Consultant
6 5 (4.76%) Ruby Developer
6 5 (4.76%) Senior Ruby Developer
6 5 (4.76%) Support Analyst
7 4 (3.81%) Design Engineer
7 4 (3.81%) Performance Analyst
Libraries, Frameworks & Software Standards
1 11 (10.48%) HTML
2 9 (8.57%) .NET
2 9 (8.57%) CSS
3 8 (7.62%) Web Services
4 6 (5.71%) AngularJS
4 6 (5.71%) LAMP
4 6 (5.71%) Spring
4 6 (5.71%) XHTML
5 5 (4.76%) Hibernate
5 5 (4.76%) HTML5
5 5 (4.76%) Ruby on Rails
6 4 (3.81%) J2EE
6 4 (3.81%) LEMP Stack
6 4 (3.81%) REST
6 4 (3.81%) XML
7 3 (2.86%) CSS3
7 3 (2.86%) JSP
7 3 (2.86%) LAPP Stack
7 3 (2.86%) Spring MVC
7 3 (2.86%) Twitter Bootstrap
Miscellaneous
1 15 (14.29%) Analytical Skills
2 6 (5.71%) Computer Science
3 5 (4.76%) Distributed Denial-of-Service
3 5 (4.76%) Greenfield Project
4 4 (3.81%) Client/Server
4 4 (3.81%) Linux Command Line
4 4 (3.81%) Management Information System
4 4 (3.81%) Mobile App
5 3 (2.86%) Fintech
6 2 (1.90%) Clustering
6 2 (1.90%) Data Centre
6 2 (1.90%) Derivative
6 2 (1.90%) User Experience
7 1 (0.95%) Algorithms
7 1 (0.95%) Data Structures
7 1 (0.95%) Device Driver
7 1 (0.95%) Digital TV
7 1 (0.95%) PDA
7 1 (0.95%) PKI
7 1 (0.95%) STB
Operating Systems
1 38 (36.19%) Windows
2 21 (20.00%) Unix
3 12 (11.43%) Red Hat Enterprise Linux
4 9 (8.57%) AIX
5 7 (6.67%) Solaris
6 6 (5.71%) CentOS
6 6 (5.71%) Windows Server
7 3 (2.86%) Kali Linux
8 2 (1.90%) DC/OS
8 2 (1.90%) Ubuntu
8 2 (1.90%) Windows Server 2003
9 1 (0.95%) Android
9 1 (0.95%) Apple iOS
9 1 (0.95%) FreeBSD
9 1 (0.95%) HPUX
9 1 (0.95%) VxWorks
9 1 (0.95%) Windows Embedded Compact
9 1 (0.95%) Windows Server 2008
9 1 (0.95%) Windows Server 2012
Processes & Methodologies
1 28 (26.67%) Agile Software Development
2 27 (25.71%) E-Commerce
3 15 (14.29%) MVC
4 12 (11.43%) Continuous Integration
4 12 (11.43%) DevOps
4 12 (11.43%) High Availability
5 10 (9.52%) Continuous Delivery
5 10 (9.52%) Root Cause Analysis
5 10 (9.52%) Software Engineering
6 9 (8.57%) OO
6 9 (8.57%) Performance Monitoring
6 9 (8.57%) Performance Testing
6 9 (8.57%) Statistics
7 8 (7.62%) Collaborative Working
7 8 (7.62%) Configuration Management
8 7 (6.67%) Cybersecurity
8 7 (6.67%) Penetration Testing
8 7 (6.67%) Risk Management
8 7 (6.67%) SIEM
9 6 (5.71%) Disaster Recovery
Programming Languages
1 35 (33.33%) Java
2 32 (30.48%) SQL
3 19 (18.10%) Python
4 18 (17.14%) Perl
4 18 (17.14%) PHP
5 15 (14.29%) JavaScript
6 12 (11.43%) Bash Shell
7 10 (9.52%) Ruby
8 9 (8.57%) AWK
9 7 (6.67%) PowerShell
10 6 (5.71%) C
11 5 (4.76%) C++
12 4 (3.81%) PL/SQL
13 3 (2.86%) C#
13 3 (2.86%) Shell Script
14 2 (1.90%) BeanShell
14 2 (1.90%) Go
15 1 (0.95%) GLSL
15 1 (0.95%) HLSL
15 1 (0.95%) Scala
Qualifications
1 11 (10.48%) Security Cleared
2 9 (8.57%) SC Cleared
3 8 (7.62%) CISSP
4 7 (6.67%) Degree
5 5 (4.76%) CISM
5 5 (4.76%) CompTIA Security+
5 5 (4.76%) ITIL Certification
6 2 (1.90%) HND
6 2 (1.90%) RHCE
7 1 (0.95%) Computer Science Degree
7 1 (0.95%) DV Cleared
7 1 (0.95%) HNC
Quality Assurance & Compliance
1 7 (6.67%) ISO/IEC 27001
2 3 (2.86%) SLA
3 2 (1.90%) GCP
4 1 (0.95%) AS 2805
4 1 (0.95%) ISO 8583
4 1 (0.95%) PCI DSS
4 1 (0.95%) PMO
System Software
1 10 (9.52%) VMware Infrastructure
2 8 (7.62%) Active Directory
2 8 (7.62%) Docker
3 6 (5.71%) Virtual Servers
4 4 (3.81%) iptables
5 3 (2.86%) Xen
6 2 (1.90%) VMware NSX
6 2 (1.90%) XenApp
6 2 (1.90%) XenDesktop
7 1 (0.95%) VMware ESXi
Systems Management
1 12 (11.43%) Puppet
2 10 (9.52%) Ansible
3 9 (8.57%) Grafana
4 7 (6.67%) Opscode Chef
5 6 (5.71%) Kubernetes
5 6 (5.71%) Terraform
6 5 (4.76%) Mesos
7 4 (3.81%) Rancher
8 3 (2.86%) Docker Swarm
8 3 (2.86%) Nessus
8 3 (2.86%) Salt
8 3 (2.86%) WSUS
9 2 (1.90%) Marathon
9 2 (1.90%) Red Hat Satellite
9 2 (1.90%) SCCM
10 1 (0.95%) HP Fortify
10 1 (0.95%) Nagios
10 1 (0.95%) WMI
10 1 (0.95%) yum
Vendors
1 22 (20.95%) Oracle
2 21 (20.00%) Red Hat
3 13 (12.38%) VMware
4 9 (8.57%) AppDynamics
4 9 (8.57%) Atlassian
4 9 (8.57%) Dynatrace
4 9 (8.57%) New Relic
5 8 (7.62%) Microsoft
6 7 (6.67%) Citrix
6 7 (6.67%) hybris
6 7 (6.67%) Sun
7 6 (5.71%) IBM
7 6 (5.71%) Sybase
8 5 (4.76%) Cisco
8 5 (4.76%) Splunk
9 4 (3.81%) Intershop
9 4 (3.81%) Nokia
9 4 (3.81%) Tekelec
9 4 (3.81%) Zend
10 3 (2.86%) Sonatype