Period
to 18 April 2019

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 April 2019 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 Apr 2019
Same period 2018 Same period 2017
Rank 23 20 17
Rank change year-on-year -3 -3 +6
Contract jobs citing Linux 93 109 95
As % of all contract IT jobs advertised in Hertfordshire 6.68% 7.39% 7.69%
As % of the Operating Systems category 30.90% 33.33% 39.09%
Number of daily rates quoted 41 59 56
Hertfordshire median daily rate £380 £400 £350
Median daily rate % change year-on-year -5.00% +14.29% -22.22%
10th Percentile £160 £263 £150
90th Percentile £571 £573 £575
East of England median daily rate £425 £425 £413
% change year-on-year - +3.03% -5.71%
Number of hourly rates quoted 11 3 3
Hertfordshire median hourly rate £35.00 £46.50 £31.50
Median hourly rate % change year-on-year -24.73% +47.62% -23.17%
10th Percentile £20.50 £45.75 £30.75
90th Percentile £51.75 £47.25 £49.45
East of England median hourly rate £31.75 £45.00 £37.50
% change year-on-year -29.44% +20.00% -

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 301 327 243
As % of all contract IT jobs advertised in Hertfordshire 21.61% 22.17% 19.68%
Number of daily rates quoted 148 165 139
Hertfordshire median daily rate £350 £375 £325
Median daily rate % change year-on-year -6.67% +15.38% -13.33%
10th Percentile £137 £160 £130
90th Percentile £519 £550 £575
East of England median daily rate £375 £363 £350
% change year-on-year +3.45% +3.57% -
Number of hourly rates quoted 49 53 24
Hertfordshire median hourly rate £13.00 £13.00 £14.50
Median hourly rate % change year-on-year - -10.34% -9.38%
10th Percentile £11.17 £8.83 £10.34
90th Percentile £49.35 £29.20 £29.25
East of England median hourly rate £16.00 £15.25 £20.76
% change year-on-year +4.92% -26.52% +18.60%

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 April 2019.

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
Contractor Hourly Rate Histogram in Hertfordshire

The hourly rate distribution of IT jobs citing Linux in Hertfordshire over the 6 months to 18 April 2019.

Contractor hourly rate histogram 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 April 2019. 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 0 33 £175 - 5
Watford -11 12 £350 -28.21% 4
Hatfield +8 9 £170 -57.50% 2
Rickmansworth +2 4 £415 +10.67%
Welwyn Garden City -2 4 £550 +98.20%
Borehamwood +1 3 - - 4
Waltham Cross - 3 £300 - 2
St Albans +2 2 £550 +83.33% 3
Hemel Hempstead -1 1 - - 3
Harpenden - 1 £375 - 3
Linux
East of England

For the 6 months to 18 April 2019, 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 (46.24%) Windows
2 36 (38.71%) C++
3 35 (37.63%) Software Engineering
4 28 (30.11%) Java
5 24 (25.81%) Microsoft
5 24 (25.81%) Aerospace
5 24 (25.81%) Git (software)
6 23 (24.73%) TCP/IP
6 23 (24.73%) JavaScript
7 22 (23.66%) C
7 22 (23.66%) Visual Studio
8 21 (22.58%) Web Services
8 21 (22.58%) Degree
8 21 (22.58%) Agile Software Development
9 20 (21.51%) Security Cleared
9 20 (21.51%) Ethernet
9 20 (21.51%) Eclipse
10 19 (20.43%) ActiveX
10 19 (20.43%) C#
10 19 (20.43%) .NET
10 19 (20.43%) MFC
10 19 (20.43%) Scrum
10 19 (20.43%) NetBeans
10 19 (20.43%) Military
10 19 (20.43%) OpenGL
10 19 (20.43%) DirectX
10 19 (20.43%) SC Cleared
10 19 (20.43%) Mathematics
10 19 (20.43%) Qt
10 19 (20.43%) Node.js

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 2 (2.15%) Apache
2 1 (1.08%) BizTalk Server
2 1 (1.08%) Jetty
2 1 (1.08%) nginx
2 1 (1.08%) OpenStack
2 1 (1.08%) Tomcat
Applications
1 1 (1.08%) GNU Octave
1 1 (1.08%) Microsoft Office
1 1 (1.08%) Simulink
Business Applications
1 2 (2.15%) Magento
1 2 (2.15%) MFGPRO
Cloud Services
1 6 (6.45%) Amazon AWS
2 3 (3.23%) Microsoft Azure
3 2 (2.15%) Cloud Computing
3 2 (2.15%) Google Cloud Platform
4 1 (1.08%) Akamai
4 1 (1.08%) Amazon CloudWatch
4 1 (1.08%) Amazon S3
4 1 (1.08%) Azure Active Directory
4 1 (1.08%) Datadog
4 1 (1.08%) GitHub
4 1 (1.08%) Office 365
4 1 (1.08%) OpenShift
4 1 (1.08%) SaaS
4 1 (1.08%) Virtual Private Cloud
Communications & Networking
1 23 (24.73%) TCP/IP
2 20 (21.51%) Ethernet
3 12 (12.90%) Firewall
3 12 (12.90%) Wireless
4 9 (9.68%) 5G
4 9 (9.68%) DNS
4 9 (9.68%) LAN
5 8 (8.60%) DHCP
5 8 (8.60%) HTTP
6 7 (7.53%) WAN
7 6 (6.45%) VoIP
8 5 (5.38%) Internet
9 4 (4.30%) BGP
9 4 (4.30%) VLAN
10 3 (3.23%) EIGRP
10 3 (3.23%) GLBP
10 3 (3.23%) IGMP
10 3 (3.23%) IGRP
10 3 (3.23%) Multicast
10 3 (3.23%) Wireshark
Database & Business Intelligence
1 9 (9.68%) MySQL
2 5 (5.38%) SQL Server
3 4 (4.30%) PostgreSQL
4 3 (3.23%) Oracle Database
5 2 (2.15%) MariaDB
5 2 (2.15%) Relational Database
5 2 (2.15%) SQL Server 2008
5 2 (2.15%) Sybase ASE
6 1 (1.08%) Amazon Aurora
6 1 (1.08%) Amazon DynamoDB
6 1 (1.08%) Amazon RDS
6 1 (1.08%) Redis
6 1 (1.08%) SQL Server Analysis Services
6 1 (1.08%) SQL Server Integration Services
6 1 (1.08%) SQL Server Reporting Services
Development Applications
1 24 (25.81%) Git (software)
2 22 (23.66%) Visual Studio
3 20 (21.51%) Eclipse
4 19 (20.43%) NetBeans
5 4 (4.30%) Subversion
6 3 (3.23%) GDB
6 3 (3.23%) Jenkins
6 3 (3.23%) Team Foundation Server
6 3 (3.23%) Valgrind
7 2 (2.15%) GitLab
7 2 (2.15%) Gradle
7 2 (2.15%) JIRA
7 2 (2.15%) TeamCity
8 1 (1.08%) Cucumber
8 1 (1.08%) IntelliJ
8 1 (1.08%) JBehave
8 1 (1.08%) Maven
8 1 (1.08%) Metasploit
8 1 (1.08%) Selenium
8 1 (1.08%) WebDriver
General
1 24 (25.81%) Aerospace
2 19 (20.43%) Military
3 8 (8.60%) Telecoms
4 7 (7.53%) Retail
5 4 (4.30%) Electronics
6 2 (2.15%) Back Office
6 2 (2.15%) Finance
6 2 (2.15%) Law
7 1 (1.08%) Avionics
7 1 (1.08%) Games
7 1 (1.08%) Manufacturing
7 1 (1.08%) Pharmaceutical
Job Titles
1 12 (12.90%) Developer
2 10 (10.75%) Embedded Engineer
3 8 (8.60%) Linux Engineer
4 6 (6.45%) Embedded C++ Engineer
4 6 (6.45%) Linux Support
4 6 (6.45%) Support Engineer
5 5 (5.38%) Linux Support Engineer
6 4 (4.30%) 2nd Line Engineer
6 4 (4.30%) 2nd Line Support
6 4 (4.30%) 2nd Line Support Engineer
6 4 (4.30%) Administrator
6 4 (4.30%) Consultant
6 4 (4.30%) IT Technician
6 4 (4.30%) Network Engineer
6 4 (4.30%) Software Developer
6 4 (4.30%) Software Engineer
7 3 (3.23%) Analyst
7 3 (3.23%) Network Consultant
7 3 (3.23%) Software Validation Engineer
7 3 (3.23%) Validation Engineer
Libraries, Frameworks & Software Standards
1 21 (22.58%) Web Services
2 19 (20.43%) .NET
2 19 (20.43%) ActiveX
2 19 (20.43%) DirectX
2 19 (20.43%) MFC
2 19 (20.43%) Node.js
2 19 (20.43%) OpenGL
2 19 (20.43%) Qt
3 6 (6.45%) HTML
4 5 (5.38%) XML
5 3 (3.23%) 802.1X
5 3 (3.23%) CSS
5 3 (3.23%) FreeSWITCH
6 2 (2.15%) LAMP
6 2 (2.15%) OAuth
6 2 (2.15%) Velocity
6 2 (2.15%) XHTML
6 2 (2.15%) XSL
7 1 (1.08%) CGI
7 1 (1.08%) SAML
Miscellaneous
1 9 (9.68%) Data Centre
2 2 (2.15%) Analytical Skills
2 2 (2.15%) FMCG
2 2 (2.15%) Hybrid Cloud
2 2 (2.15%) Self-Motivation
2 2 (2.15%) VHDL
2 2 (2.15%) Virtual Team
3 1 (1.08%) Clustering
3 1 (1.08%) Data Structures
3 1 (1.08%) Field-Programmable Gate Array
3 1 (1.08%) Graphic Design
3 1 (1.08%) Handset
3 1 (1.08%) HP Superdome
3 1 (1.08%) Linux Command Line
3 1 (1.08%) Machine to Machine
3 1 (1.08%) Private Cloud
3 1 (1.08%) Replication
3 1 (1.08%) Smart Meter
Operating Systems
1 43 (46.24%) Windows
2 13 (13.98%) Unix
3 7 (7.53%) Windows Server
4 5 (5.38%) Red Hat Enterprise Linux
5 3 (3.23%) CentOS
5 3 (3.23%) Ubuntu
5 3 (3.23%) Windows Server 2008
5 3 (3.23%) Windows Server 2012
6 2 (2.15%) Debian
6 2 (2.15%) Embedded Linux
6 2 (2.15%) Oracle Linux
6 2 (2.15%) Solaris
6 2 (2.15%) SUSE
7 1 (1.08%) HPUX
7 1 (1.08%) Kali Linux
7 1 (1.08%) VMS
Processes & Methodologies
1 35 (37.63%) Software Engineering
2 21 (22.58%) Agile Software Development
3 19 (20.43%) Mathematics
3 19 (20.43%) Scrum
4 7 (7.53%) Problem-Solving
5 6 (6.45%) ITIL
5 6 (6.45%) Validation
6 5 (5.38%) Continuous Integration
6 5 (5.38%) OO
7 4 (4.30%) Data Analysis
7 4 (4.30%) High Availability
7 4 (4.30%) Open Source
7 4 (4.30%) Test Automation
8 3 (3.23%) E-Commerce
8 3 (3.23%) Embedded Software Development
8 3 (3.23%) Infrastructure Engineering
8 3 (3.23%) Load Balancing
8 3 (3.23%) Migration
8 3 (3.23%) Performance Tuning
9 2 (2.15%) Network Virtualisation
Programming Languages
1 36 (38.71%) C++
2 28 (30.11%) Java
3 23 (24.73%) JavaScript
4 22 (23.66%) C
5 19 (20.43%) C#
5 19 (20.43%) GLSL
5 19 (20.43%) HLSL
6 13 (13.98%) Python
7 8 (8.60%) Embedded C++
8 7 (7.53%) SQL
9 6 (6.45%) Perl
10 5 (5.38%) Bash Shell
10 5 (5.38%) PowerShell
11 4 (4.30%) Embedded C
12 2 (2.15%) Java 8
12 2 (2.15%) PHP
12 2 (2.15%) Shell Script
12 2 (2.15%) T-SQL
13 1 (1.08%) Assembly Language
13 1 (1.08%) Tcl
Qualifications
1 21 (22.58%) Degree
2 20 (21.51%) Security Cleared
3 19 (20.43%) SC Cleared
4 1 (1.08%) Computer Science Degree
4 1 (1.08%) LPIC
4 1 (1.08%) PhD
4 1 (1.08%) RHCE
4 1 (1.08%) RHCT
Quality Assurance & Compliance
1 2 (2.15%) ISO/IEC 27001
1 2 (2.15%) SLA
System Software
1 8 (8.60%) Active Directory
2 7 (7.53%) VMware Infrastructure
3 5 (5.38%) Hyper-V
3 5 (5.38%) KVM
4 3 (3.23%) VirtualBox
5 2 (2.15%) Docker
5 2 (2.15%) VMware ESXi
5 2 (2.15%) vSphere
6 1 (1.08%) Firmware
6 1 (1.08%) Microsoft Virtual Server
6 1 (1.08%) vCloud
6 1 (1.08%) Virtual Desktop
6 1 (1.08%) Virtual Machines
6 1 (1.08%) Virtual Servers
6 1 (1.08%) VMware Server
Systems Management
1 4 (4.30%) Puppet
2 3 (3.23%) Opscode Chef
2 3 (3.23%) vCenter Server
3 2 (2.15%) Kubernetes
3 2 (2.15%) NetBackup
3 2 (2.15%) SELinux
4 1 (1.08%) Ansible
4 1 (1.08%) Docker Swarm
4 1 (1.08%) Hyperic
4 1 (1.08%) Nessus
4 1 (1.08%) Nmap
4 1 (1.08%) SCCM
4 1 (1.08%) SCOM
4 1 (1.08%) Sysdig
4 1 (1.08%) Terraform
4 1 (1.08%) vRealize
Vendors
1 24 (25.81%) Microsoft
2 11 (11.83%) VMware
3 9 (9.68%) Cisco
4 6 (6.45%) Citrix
4 6 (6.45%) Oracle
5 5 (5.38%) Red Hat
6 4 (4.30%) Fortinet
7 3 (3.23%) Arista
7 3 (3.23%) F5
7 3 (3.23%) HP
7 3 (3.23%) Juniper
7 3 (3.23%) Palo Alto
7 3 (3.23%) Symantec
8 2 (2.15%) Dell
8 2 (2.15%) Sybase
8 2 (2.15%) Zend
9 1 (1.08%) Atmel
9 1 (1.08%) Qualys
9 1 (1.08%) SolarWinds
9 1 (1.08%) Tufin