Period
to 16 August 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 16 August 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
16 Aug 2018
Same period 2017 Same period 2016
Rank 15 15 23
Rank change year-on-year 0 +8 -8
Contract jobs citing Linux 115 101 86
As % of all contract IT jobs advertised in Hertfordshire 7.31% 7.84% 5.92%
As % of the Operating Systems category 34.12% 34.35% 32.21%
Number of daily rates quoted 57 57 49
Hertfordshire median daily rate £400 £450 £375
Median daily rate % change year-on-year -11.11% +20.00% -
10th Percentile £308 £288 £203
90th Percentile £543 £575 £513
East of England median daily rate £450 £447 £400
% change year-on-year +0.61% +11.81% +6.67%
Number of hourly rates quoted 2 6 2
Hertfordshire median hourly rate £44.50 £31.50 £34.75
Median hourly rate % change year-on-year +41.27% -9.35% -13.13%
10th Percentile £41.60 £20.88 £31.33
90th Percentile £47.80 £32.25 £38.78
East of England median hourly rate £42.50 £37.50 £36.50
% change year-on-year +13.33% +2.74% -4.58%

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 337 294 267
As % of all contract IT jobs advertised in Hertfordshire 21.41% 22.81% 18.39%
Number of daily rates quoted 175 150 140
Hertfordshire median daily rate £350 £355 £356
Median daily rate % change year-on-year -1.41% -0.35% +1.79%
10th Percentile £125 £120 £156
90th Percentile £500 £575 £525
East of England median daily rate £400 £375 £350
% change year-on-year +6.67% +7.14% -
Number of hourly rates quoted 48 42 20
Hertfordshire median hourly rate £15.43 £15.00 £15.25
Median hourly rate % change year-on-year +2.87% -1.64% +2.69%
10th Percentile £10.34 £11.35 £10.50
90th Percentile £32.38 £32.25 £21.23
East of England median hourly rate £16.00 £17.50 £16.50
% change year-on-year -8.57% +6.06% -10.81%

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 16 August 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 16 August 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
Stevenage +6 34 £240 - 5
Welwyn Garden City -5 17 £325 -43.48% 1
Watford -3 15 £488 - 17
Hemel Hempstead -7 12 £400 +14.29% 4
Hatfield -9 7 £500 -9.09% 8
Rickmansworth -9 2 £375 -28.57% 2
Royston - 2 £413 - 1
Borehamwood - 1 - - 3
Linux
East of England

For the 6 months to 16 August 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 43 (37.39%) Windows
2 37 (32.17%) JavaScript
2 37 (32.17%) Software Engineering
3 35 (30.43%) Java
4 31 (26.96%) Git (software)
5 30 (26.09%) C++
6 29 (25.22%) SC Cleared
6 29 (25.22%) Security Cleared
7 28 (24.35%) TCP/IP
8 25 (21.74%) Bash Shell
8 25 (21.74%) Node.js
9 23 (20.00%) Agile Software Development
10 20 (17.39%) Red Hat Enterprise Linux
11 19 (16.52%) PowerShell
11 19 (16.52%) Microsoft
11 19 (16.52%) MySQL
11 19 (16.52%) Web Services
11 19 (16.52%) Eclipse
12 18 (15.65%) HTML
12 18 (15.65%) Configuration Management
12 18 (15.65%) Degree
13 17 (14.78%) Scrum
13 17 (14.78%) VMware
13 17 (14.78%) PHP
13 17 (14.78%) Jenkins
14 16 (13.91%) Qt
14 16 (13.91%) Analytical Skills
14 16 (13.91%) C
14 16 (13.91%) C#
14 16 (13.91%) Visual Studio

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 13 (11.30%) Apache
2 8 (6.96%) nginx
3 7 (6.09%) Elasticsearch
3 7 (6.09%) OpenStack
4 5 (4.35%) Tomcat
5 3 (2.61%) Confluence
5 3 (2.61%) WebSphere
6 2 (1.74%) JBoss
6 2 (1.74%) MQSeries
6 2 (1.74%) Oracle SOA Suite
6 2 (1.74%) WebSphere Application Server
7 1 (0.87%) Adobe Experience Manager
7 1 (0.87%) CMS
7 1 (0.87%) IBM HTTP Server
7 1 (0.87%) IIS
7 1 (0.87%) WebLogic
Applications
1 1 (0.87%) HipChat
1 1 (0.87%) Microsoft Office
1 1 (0.87%) Microsoft PowerPoint
1 1 (0.87%) Microsoft Project
1 1 (0.87%) MS Visio
Business Applications
1 9 (7.83%) Magento
2 2 (1.74%) BusinessWorks
3 1 (0.87%) Dynamics CRM
Cloud Services
1 10 (8.70%) Google Cloud Platform
2 8 (6.96%) Amazon AWS
3 6 (5.22%) GitHub
4 4 (3.48%) Stackdriver
5 2 (1.74%) Heroku
6 1 (0.87%) Akamai
6 1 (0.87%) AWS CloudFormation
6 1 (0.87%) Cloud Computing
6 1 (0.87%) IaaS
Communications & Networking
1 28 (24.35%) TCP/IP
2 16 (13.91%) Ethernet
3 13 (11.30%) HTTP
4 12 (10.43%) Wireshark
5 8 (6.96%) Firewall
5 8 (6.96%) SSL
6 7 (6.09%) DNS
7 6 (5.22%) FTP
8 4 (3.48%) HTTPS
8 4 (3.48%) Wi-Fi
9 3 (2.61%) SAN
9 3 (2.61%) Wireless
10 2 (1.74%) BGP
10 2 (1.74%) DHCP
10 2 (1.74%) Internet
10 2 (1.74%) iSCSI
10 2 (1.74%) Network Security
10 2 (1.74%) OSPF
11 1 (0.87%) Cisco ASA
11 1 (0.87%) Cisco IOS
Database & Business Intelligence
1 19 (16.52%) MySQL
2 12 (10.43%) MongoDB
3 11 (9.57%) Relational Database
4 4 (3.48%) Big Data
4 4 (3.48%) DB2
4 4 (3.48%) PostgreSQL
4 4 (3.48%) RDBMS
4 4 (3.48%) SQL Server
5 3 (2.61%) Oracle Database
6 2 (1.74%) Apache Cassandra
6 2 (1.74%) NoSQL
7 1 (0.87%) Hadoop
7 1 (0.87%) Jackrabbit
7 1 (0.87%) Oracle Database 11g
7 1 (0.87%) Oracle Database 12c
Development Applications
1 31 (26.96%) Git (software)
2 19 (16.52%) Eclipse
3 17 (14.78%) Jenkins
4 16 (13.91%) NetBeans
4 16 (13.91%) Visual Studio
5 12 (10.43%) GDB
5 12 (10.43%) Rational DOORS
5 12 (10.43%) Rational Rhapsody
5 12 (10.43%) Rational Team Concert
6 5 (4.35%) Sonatype Nexus
7 4 (3.48%) Artifactory
7 4 (3.48%) JIRA
7 4 (3.48%) JUnit
7 4 (3.48%) Subversion
8 3 (2.61%) Gradle
8 3 (2.61%) Mocha
8 3 (2.61%) Mockito
9 2 (1.74%) Babel
9 2 (1.74%) git-flow
9 2 (1.74%) Jasmine
General
1 16 (13.91%) Military
2 15 (13.04%) Aerospace
3 12 (10.43%) Telecoms
4 11 (9.57%) Law
5 7 (6.09%) Retail
6 3 (2.61%) Finance
7 2 (1.74%) Advertising
7 2 (1.74%) Billing
8 1 (0.87%) Banking
8 1 (0.87%) Games
Job Titles
1 26 (22.61%) Developer
2 17 (14.78%) Software Engineer
3 12 (10.43%) C++ Software Engineer
4 11 (9.57%) DevOps Engineer
5 10 (8.70%) Administrator
5 10 (8.70%) Analyst
6 8 (6.96%) Active Directory Analyst
6 8 (6.96%) Data Analyst
6 8 (6.96%) Java Developer
6 8 (6.96%) Magento Developer
7 6 (5.22%) Linux Engineer
8 5 (4.35%) Consultant
8 5 (4.35%) DBA
8 5 (4.35%) Linux Administrator
8 5 (4.35%) Senior Developer
9 4 (3.48%) JavaScript Developer
9 4 (3.48%) MySQL DBA
9 4 (3.48%) Server Engineer
9 4 (3.48%) Windows Engineer
10 3 (2.61%) Linux Systems Administrator
Libraries, Frameworks & Software Standards
1 25 (21.74%) Node.js
2 19 (16.52%) Web Services
3 18 (15.65%) HTML
4 16 (13.91%) Qt
5 14 (12.17%) .NET
5 14 (12.17%) CSS
6 13 (11.30%) ActiveX
6 13 (11.30%) DirectX
6 13 (11.30%) MFC
6 13 (11.30%) OpenGL
7 11 (9.57%) AngularJS
8 10 (8.70%) LAMP
8 10 (8.70%) XHTML
9 7 (6.09%) XSL
10 6 (5.22%) Elastic Stack
10 6 (5.22%) Spring
11 5 (4.35%) HTML5
11 5 (4.35%) JMS
11 5 (4.35%) REST
12 3 (2.61%) SOAP
Miscellaneous
1 16 (13.91%) Analytical Skills
2 9 (7.83%) Data Centre
3 5 (4.35%) Clustering
4 4 (3.48%) Computer Science
4 4 (3.48%) Derivative
5 3 (2.61%) Linux Command Line
5 3 (2.61%) Management Information System
5 3 (2.61%) Replication
6 1 (0.87%) Client/Server
6 1 (0.87%) Device Driver
6 1 (0.87%) Enterprise Software
6 1 (0.87%) Mobile App
6 1 (0.87%) NHS
6 1 (0.87%) PACS
6 1 (0.87%) Private Cloud
6 1 (0.87%) Security Operations Centre
6 1 (0.87%) Self-Motivation
6 1 (0.87%) Virtual Team
6 1 (0.87%) Wiki
Operating Systems
1 43 (37.39%) Windows
2 20 (17.39%) Red Hat Enterprise Linux
3 11 (9.57%) Unix
4 8 (6.96%) CentOS
4 8 (6.96%) Solaris
5 6 (5.22%) Windows Server 2003
5 6 (5.22%) Windows Server 2012
6 5 (4.35%) HPUX
6 5 (4.35%) Windows Server
7 3 (2.61%) Ubuntu
8 2 (1.74%) Fedora
9 1 (0.87%) AIX
9 1 (0.87%) DC/OS
9 1 (0.87%) Debian
9 1 (0.87%) SUSE
9 1 (0.87%) SUSE Linux Enterprise Server
9 1 (0.87%) Windows 7
Processes & Methodologies
1 37 (32.17%) Software Engineering
2 23 (20.00%) Agile Software Development
3 18 (15.65%) Configuration Management
4 17 (14.78%) Scrum
5 15 (13.04%) DevOps
6 14 (12.17%) Mathematics
6 14 (12.17%) UML
7 13 (11.30%) Continuous Integration
8 12 (10.43%) MVC
8 12 (10.43%) OO
9 10 (8.70%) E-Commerce
10 9 (7.83%) Problem-Solving
10 9 (7.83%) TDD
11 8 (6.96%) BDD
11 8 (6.96%) Data Analysis
11 8 (6.96%) Data Cleansing
11 8 (6.96%) Microservices
11 8 (6.96%) OO PHP
11 8 (6.96%) Open Source
11 8 (6.96%) Security Management
Programming Languages
1 37 (32.17%) JavaScript
2 35 (30.43%) Java
3 30 (26.09%) C++
4 25 (21.74%) Bash Shell
5 19 (16.52%) PowerShell
6 17 (14.78%) PHP
7 16 (13.91%) C
7 16 (13.91%) C#
8 13 (11.30%) GLSL
8 13 (11.30%) HLSL
9 12 (10.43%) Perl
9 12 (10.43%) Python
10 11 (9.57%) Shell Script
11 10 (8.70%) SQL
12 7 (6.09%) Ruby
13 4 (3.48%) ES6
13 4 (3.48%) Java 8
13 4 (3.48%) Korn
14 3 (2.61%) VB
14 3 (2.61%) VBScript
Qualifications
1 29 (25.22%) SC Cleared
1 29 (25.22%) Security Cleared
2 18 (15.65%) Degree
3 1 (0.87%) AWS Certification
3 1 (0.87%) CCNP
3 1 (0.87%) Cisco Certification
3 1 (0.87%) Computer Science Degree
3 1 (0.87%) Master's Degree
3 1 (0.87%) MBA
3 1 (0.87%) PMI Certification
3 1 (0.87%) PMP
3 1 (0.87%) RHCE
Quality Assurance & Compliance
1 3 (2.61%) QA
2 2 (1.74%) ISO/IEC 27001
3 1 (0.87%) ECSS
3 1 (0.87%) GCP
3 1 (0.87%) ISO 9001
3 1 (0.87%) SLA
System Software
1 10 (8.70%) Active Directory
1 10 (8.70%) VMware Infrastructure
2 8 (6.96%) Xen
3 7 (6.09%) Docker
4 3 (2.61%) VMware NSX
5 2 (1.74%) Virtual Servers
5 2 (1.74%) XenApp
5 2 (1.74%) XenDesktop
6 1 (0.87%) Ceph
6 1 (0.87%) FreeRADIUS
6 1 (0.87%) VMware ESXi
Systems Management
1 15 (13.04%) Opscode Chef
1 15 (13.04%) Puppet
2 12 (10.43%) Ansible
3 8 (6.96%) WSUS
4 6 (5.22%) Terraform
5 5 (4.35%) Kibana
5 5 (4.35%) logstash
6 4 (3.48%) HAProxy
7 3 (2.61%) Docker Swarm
7 3 (2.61%) Kubernetes
7 3 (2.61%) Red Hat Satellite
7 3 (2.61%) Salt
8 1 (0.87%) Grafana
8 1 (0.87%) HP Quality Center
8 1 (0.87%) Mesos
8 1 (0.87%) Prometheus
8 1 (0.87%) Rancher
8 1 (0.87%) SCOM
8 1 (0.87%) vCenter Server
8 1 (0.87%) vRealize
Vendors
1 19 (16.52%) Microsoft
2 17 (14.78%) VMware
3 15 (13.04%) Red Hat
4 13 (11.30%) Splunk
5 10 (8.70%) Zend
6 9 (7.83%) Google
7 8 (6.96%) Percona
8 7 (6.09%) Oracle
9 5 (4.35%) Atlassian
9 5 (4.35%) F5
9 5 (4.35%) NetApp
9 5 (4.35%) New Relic
10 4 (3.48%) IBM
10 4 (3.48%) SolarWinds
11 3 (2.61%) Capita
11 3 (2.61%) Citrix
11 3 (2.61%) MuleSoft
11 3 (2.61%) webMethods
12 2 (1.74%) SAP
12 2 (1.74%) WSO2