Period
to 16 December 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 December 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 Dec 2018
Same period 2017 Same period 2016
Rank 18 18 11
Rank change year-on-year 0 -7 +6
Contract jobs citing Linux 120 124 132
As % of all contract IT jobs advertised in Hertfordshire 7.61% 7.78% 9.21%
As % of the Operating Systems category 32.97% 37.80% 43.71%
Number of daily rates quoted 53 57 71
Hertfordshire median daily rate £380 £425 £325
Median daily rate % change year-on-year -10.59% +30.77% -17.72%
10th Percentile £250 £226 £150
90th Percentile £553 £588 £475
East of England median daily rate £450 £400 £375
% change year-on-year +12.50% +6.67% -7.41%
Number of hourly rates quoted 13 8 0
Hertfordshire median hourly rate £42.50 £45.25 -
Median hourly rate % change year-on-year -6.08% - -
East of England median hourly rate £42.50 £42.00 £35.00
% change year-on-year +1.19% +20.00% -6.67%

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 364 328 302
As % of all contract IT jobs advertised in Hertfordshire 23.08% 20.59% 21.07%
Number of daily rates quoted 193 161 155
Hertfordshire median daily rate £325 £363 £350
Median daily rate % change year-on-year -10.34% +3.57% -0.28%
10th Percentile £134 £129 £150
90th Percentile £475 £550 £525
East of England median daily rate £390 £350 £348
% change year-on-year +11.43% +0.72% -0.71%
Number of hourly rates quoted 52 40 19
Hertfordshire median hourly rate £15.93 £15.00 £13.00
Median hourly rate % change year-on-year +6.20% +15.38% -13.33%
10th Percentile £12.03 £12.38 £10.00
90th Percentile £44.98 £47.25 £17.55
East of England median hourly rate £16.50 £26.44 £16.50
% change year-on-year -37.59% +60.24% -2.94%

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 December 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
Contractor Hourly Rate Histogram in Hertfordshire

The hourly rate distribution of IT jobs citing Linux in Hertfordshire over the 6 months to 16 December 2018.

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 16 December 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 +13 47 £420 - 9
Watford -8 14 £363 -30.95% 12
Hatfield 0 8 £431 -21.59% 10
Rickmansworth -7 8 £380 -27.62% 1
Welwyn Garden City -8 8 £425 +49.12%
Waltham Cross - 4 £300 - 1
Royston - 3 £369 - 2
Hemel Hempstead -10 2 £300 -20.00% 4
St Albans +2 1 - - 4
Borehamwood - 1 £350 -
Harpenden - 1 £375 -
Linux
East of England

For the 6 months to 16 December 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 59 (49.17%) Windows
2 40 (33.33%) Software Engineering
3 33 (27.50%) Agile Software Development
3 33 (27.50%) Java
4 31 (25.83%) C++
5 30 (25.00%) SC Cleared
5 30 (25.00%) Security Cleared
6 28 (23.33%) TCP/IP
7 25 (20.83%) JavaScript
8 24 (20.00%) C#
8 24 (20.00%) .NET
8 24 (20.00%) Microsoft
9 23 (19.17%) Aerospace
9 23 (19.17%) Visual Studio
10 22 (18.33%) Web Services
10 22 (18.33%) Git (software)
11 21 (17.50%) ITIL
11 21 (17.50%) Node.js
12 20 (16.67%) C
12 20 (16.67%) Python
12 20 (16.67%) Eclipse
12 20 (16.67%) Scrum
13 19 (15.83%) NetBeans
13 19 (15.83%) Military
13 19 (15.83%) Qt
13 19 (15.83%) Degree
13 19 (15.83%) Ethernet
14 18 (15.00%) Mathematics
15 17 (14.17%) ActiveX
15 17 (14.17%) MFC

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 8 (6.67%) Confluence
2 7 (5.83%) Tomcat
3 4 (3.33%) GlassFish
4 3 (2.50%) Apache
4 3 (2.50%) Elasticsearch
5 2 (1.67%) nginx
5 2 (1.67%) OpenStack
5 2 (1.67%) Oracle SOA Suite
5 2 (1.67%) SharePoint
6 1 (0.83%) BizTalk Server
6 1 (0.83%) Cloud Foundry
6 1 (0.83%) WebLogic
6 1 (0.83%) WebSphere
Applications
1 3 (2.50%) Microsoft Office
2 1 (0.83%) HipChat
Business Applications
1 2 (1.67%) MFGPRO
Cloud Services
1 12 (10.00%) Amazon AWS
2 6 (5.00%) Microsoft Azure
3 2 (1.67%) AWS CloudFormation
3 2 (1.67%) Google Cloud Platform
3 2 (1.67%) Office 365
4 1 (0.83%) Cloud Computing
4 1 (0.83%) Heroku
4 1 (0.83%) IaaS
4 1 (0.83%) Stackdriver
Communications & Networking
1 28 (23.33%) TCP/IP
2 19 (15.83%) Ethernet
3 14 (11.67%) Firewall
4 9 (7.50%) Wireshark
5 7 (5.83%) DHCP
5 7 (5.83%) DNS
5 7 (5.83%) VoIP
6 6 (5.00%) LAN
7 5 (4.17%) HTTP
8 4 (3.33%) FTP
8 4 (3.33%) IGMP
8 4 (3.33%) Internet
8 4 (3.33%) OSPF
8 4 (3.33%) PBX
8 4 (3.33%) RTCP
8 4 (3.33%) RTP
8 4 (3.33%) SNMP
8 4 (3.33%) VLAN
8 4 (3.33%) WAN
8 4 (3.33%) Wireless
Database & Business Intelligence
1 12 (10.00%) SQL Server
2 8 (6.67%) MySQL
2 8 (6.67%) Sybase ASE
3 7 (5.83%) SQL Server 2008
4 5 (4.17%) MongoDB
5 4 (3.33%) SQL Server Analysis Services
5 4 (3.33%) SQL Server Integration Services
5 4 (3.33%) SQL Server Reporting Services
6 3 (2.50%) MariaDB
7 2 (1.67%) PostgreSQL
8 1 (0.83%) Big Data
8 1 (0.83%) DB2
8 1 (0.83%) Oracle Database
8 1 (0.83%) RDBMS
8 1 (0.83%) Relational Database
Development Applications
1 23 (19.17%) Visual Studio
2 22 (18.33%) Git (software)
3 20 (16.67%) Eclipse
4 19 (15.83%) NetBeans
5 13 (10.83%) Jenkins
6 10 (8.33%) JIRA
7 9 (7.50%) GDB
8 8 (6.67%) Subversion
9 5 (4.17%) Rational DOORS
9 5 (4.17%) Rational Rhapsody
9 5 (4.17%) Rational Team Concert
9 5 (4.17%) Team Foundation Server
10 4 (3.33%) Valgrind
11 3 (2.50%) TeamCity
12 2 (1.67%) Artifactory
12 2 (1.67%) Gradle
12 2 (1.67%) JUnit
12 2 (1.67%) Maven
12 2 (1.67%) Selenium
13 1 (0.83%) jMock
General
1 23 (19.17%) Aerospace
2 19 (15.83%) Military
3 7 (5.83%) Finance
3 7 (5.83%) Law
4 6 (5.00%) Telecoms
5 3 (2.50%) Pharmaceutical
6 2 (1.67%) Back Office
7 1 (0.83%) Advertising
7 1 (0.83%) Avionics
7 1 (0.83%) Electronics
7 1 (0.83%) Retail
Job Titles
1 24 (20.00%) Developer
2 15 (12.50%) Analyst
3 14 (11.67%) Administrator
4 12 (10.00%) Linux Administrator
5 10 (8.33%) Linux Engineer
6 9 (7.50%) Software Engineer
6 9 (7.50%) SQL Developer
7 7 (5.83%) Active Directory Analyst
7 7 (5.83%) Data Analyst
7 7 (5.83%) Embedded Engineer
8 6 (5.00%) Support Engineer
9 5 (4.17%) C++ Software Engineer
9 5 (4.17%) DevOps Engineer
9 5 (4.17%) Linux Developer
9 5 (4.17%) Linux Systems Administrator
9 5 (4.17%) Network Engineer
9 5 (4.17%) Systems Administrator
9 5 (4.17%) Unix Engineer
9 5 (4.17%) Unix Support
9 5 (4.17%) Unix Support Engineer
Libraries, Frameworks & Software Standards
1 24 (20.00%) .NET
2 22 (18.33%) Web Services
3 21 (17.50%) Node.js
4 19 (15.83%) Qt
5 17 (14.17%) ActiveX
5 17 (14.17%) DirectX
5 17 (14.17%) MFC
5 17 (14.17%) OpenGL
6 5 (4.17%) HTML
7 4 (3.33%) FreeSWITCH
7 4 (3.33%) LDAP
7 4 (3.33%) XML
8 3 (2.50%) AngularJS
8 3 (2.50%) CSS
9 2 (1.67%) ASP.NET
9 2 (1.67%) ASP.NET MVC
9 2 (1.67%) Elastic Stack
9 2 (1.67%) HTML5
9 2 (1.67%) LAMP
9 2 (1.67%) REST
Miscellaneous
1 6 (5.00%) Data Centre
2 4 (3.33%) Analytical Skills
3 3 (2.50%) Clustering
3 3 (2.50%) Fintech
3 3 (2.50%) Security Operations Centre
4 2 (1.67%) Device Driver
4 2 (1.67%) FMCG
4 2 (1.67%) Management Information System
5 1 (0.83%) Client/Server
5 1 (0.83%) Cloud Native
5 1 (0.83%) Derivative
5 1 (0.83%) Enterprise Software
5 1 (0.83%) Greenfield Project
5 1 (0.83%) Handset
5 1 (0.83%) HP Superdome
5 1 (0.83%) Machine to Machine
5 1 (0.83%) Mobile App
5 1 (0.83%) Private Cloud
5 1 (0.83%) Smart Meter
Operating Systems
1 59 (49.17%) Windows
2 14 (11.67%) Red Hat Enterprise Linux
3 13 (10.83%) Unix
4 8 (6.67%) Windows Server
5 6 (5.00%) Ubuntu
6 4 (3.33%) CentOS
6 4 (3.33%) Debian
6 4 (3.33%) HPUX
6 4 (3.33%) Solaris
6 4 (3.33%) Windows Server 2012
7 3 (2.50%) Windows Server 2008
8 1 (0.83%) DC/OS
8 1 (0.83%) Embedded Linux
8 1 (0.83%) VMS
Processes & Methodologies
1 40 (33.33%) Software Engineering
2 33 (27.50%) Agile Software Development
3 21 (17.50%) ITIL
4 20 (16.67%) Scrum
5 18 (15.00%) Mathematics
6 14 (11.67%) DevOps
7 12 (10.00%) Problem-Solving
8 9 (7.50%) Infrastructure Engineering
9 8 (6.67%) Data Analysis
10 7 (5.83%) Configuration Management
10 7 (5.83%) Data Cleansing
11 6 (5.00%) SIEM
11 6 (5.00%) Test Automation
11 6 (5.00%) UML
12 5 (4.17%) Incident Management
12 5 (4.17%) OO
12 5 (4.17%) Project Management
12 5 (4.17%) Validation
13 4 (3.33%) Information Security
13 4 (3.33%) Migration
Programming Languages
1 33 (27.50%) Java
2 31 (25.83%) C++
3 25 (20.83%) JavaScript
4 24 (20.00%) C#
5 20 (16.67%) C
5 20 (16.67%) Python
6 17 (14.17%) GLSL
6 17 (14.17%) HLSL
7 14 (11.67%) Perl
8 13 (10.83%) SQL
9 12 (10.00%) PowerShell
10 8 (6.67%) T-SQL
11 7 (5.83%) Bash Shell
12 4 (3.33%) Embedded C
13 3 (2.50%) Korn
13 3 (2.50%) PHP
13 3 (2.50%) Shell Script
14 2 (1.67%) Embedded C++
14 2 (1.67%) Java 8
14 2 (1.67%) Ruby
Qualifications
1 30 (25.00%) SC Cleared
1 30 (25.00%) Security Cleared
2 19 (15.83%) Degree
3 1 (0.83%) AWS Certification
3 1 (0.83%) CISM
3 1 (0.83%) CISSP
3 1 (0.83%) Computer Science Degree
3 1 (0.83%) LPIC
3 1 (0.83%) RHCE
3 1 (0.83%) RHCT
Quality Assurance & Compliance
1 2 (1.67%) ISO/IEC 27001
2 1 (0.83%) SLA
System Software
1 13 (10.83%) Active Directory
2 8 (6.67%) Docker
3 6 (5.00%) Hyper-V
3 6 (5.00%) VMware ESXi
4 4 (3.33%) KVM
4 4 (3.33%) VirtualBox
4 4 (3.33%) VMware Infrastructure
5 3 (2.50%) Postfix
5 3 (2.50%) Virtual Servers
6 1 (0.83%) Ceph
6 1 (0.83%) Firmware
6 1 (0.83%) FreeRADIUS
6 1 (0.83%) Microsoft Virtual Server
6 1 (0.83%) Squid
6 1 (0.83%) VMware NSX
6 1 (0.83%) vSphere
Systems Management
1 15 (12.50%) Puppet
2 5 (4.17%) Ansible
2 5 (4.17%) Opscode Chef
3 4 (3.33%) Terraform
4 3 (2.50%) Docker Swarm
4 3 (2.50%) Kubernetes
5 2 (1.67%) Red Hat Satellite
5 2 (1.67%) Salt
6 1 (0.83%) FortiGate
6 1 (0.83%) HAProxy
6 1 (0.83%) Kibana
6 1 (0.83%) logstash
6 1 (0.83%) Mesos
6 1 (0.83%) Nagios
6 1 (0.83%) Prometheus
6 1 (0.83%) SCCM
6 1 (0.83%) SCOM
6 1 (0.83%) SELinux
6 1 (0.83%) vCenter Server
6 1 (0.83%) yum
Vendors
1 24 (20.00%) Microsoft
2 16 (13.33%) VMware
3 13 (10.83%) Red Hat
4 10 (8.33%) Sybase
5 9 (7.50%) Atlassian
5 9 (7.50%) Cisco
5 9 (7.50%) Oracle
6 8 (6.67%) NetApp
7 3 (2.50%) Fortinet
7 3 (2.50%) Symantec
8 2 (1.67%) CheckPoint
8 2 (1.67%) Citrix
8 2 (1.67%) F5
8 2 (1.67%) HP
8 2 (1.67%) Juniper
8 2 (1.67%) McAfee
8 2 (1.67%) Palo Alto
8 2 (1.67%) Xamarin
9 1 (0.83%) New Relic
9 1 (0.83%) Sonatype