Period
to 17 September 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 17 September 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
17 Sep 2019
Same period 2018 Same period 2017
Rank 18 17 16
Rank change year-on-year -1 -1 +6
Contract jobs citing Linux 114 114 113
As % of all contract IT jobs advertised in Hertfordshire 8.17% 7.09% 8.18%
As % of the Operating Systems category 38.13% 32.11% 35.31%
Number of daily rates quoted 45 55 54
Hertfordshire median daily rate £425 £400 £423
Median daily rate % change year-on-year +6.25% -5.33% +12.67%
10th Percentile £304 £313 £295
90th Percentile £533 £523 £575
East of England median daily rate £425 £445 £428
% change year-on-year -4.49% +4.09% +1.79%
Number of hourly rates quoted 3 3 8
Hertfordshire median hourly rate £47.50 £46.50 £31.50
Median hourly rate % change year-on-year +2.15% +47.62% -
10th Percentile £42.25 £41.95 £24.83
90th Percentile £51.75 £48.25 £46.38
East of England median hourly rate £47.50 £45.00 £40.00
% change year-on-year +5.56% +12.50% +25.00%

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 299 355 320
As % of all contract IT jobs advertised in Hertfordshire 21.42% 22.09% 23.15%
Number of daily rates quoted 138 188 154
Hertfordshire median daily rate £378 £325 £375
Median daily rate % change year-on-year +16.15% -13.33% +7.14%
10th Percentile £127 £125 £124
90th Percentile £538 £462 £575
East of England median daily rate £375 £400 £375
% change year-on-year -6.25% +6.67% +7.14%
Number of hourly rates quoted 41 45 46
Hertfordshire median hourly rate £15.86 £15.86 £15.50
Median hourly rate % change year-on-year - +2.32% +6.90%
10th Percentile £11.17 £11.18 £12.09
90th Percentile £52.50 £46.45 £36.75
East of England median hourly rate £15.93 £16.50 £18.00
% change year-on-year -3.45% -8.33% +9.09%

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 17 September 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
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 17 September 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 -9 25 £425 +3.66% 6
Watford -8 23 £463 -5.13% 15
Hemel Hempstead +10 17 £450 +12.50% 8
Hatfield +2 7 £490 +8.89% 6
Welwyn Garden City +7 3 £380 +16.92% 4
St Albans +6 3 £500 - 8
Rickmansworth +6 2 £450 +18.42%
Bishop's Stortford - 1 £500 - 1
Welwyn - 1 - - 1
Linux
East of England

For the 6 months to 17 September 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 60 (52.63%) Windows
2 39 (34.21%) Java
2 39 (34.21%) TCP/IP
3 37 (32.46%) Agile Software Development
4 32 (28.07%) Software Engineering
5 31 (27.19%) JavaScript
5 31 (27.19%) Scrum
6 30 (26.32%) C++
6 30 (26.32%) Web Services
6 30 (26.32%) Security Cleared
6 30 (26.32%) SC Cleared
6 30 (26.32%) Git (software)
7 27 (23.68%) Microsoft
8 26 (22.81%) Active Directory
8 26 (22.81%) Degree
9 24 (21.05%) Military
9 24 (21.05%) Ethernet
9 24 (21.05%) Aerospace
10 23 (20.18%) Eclipse
10 23 (20.18%) Unix
10 23 (20.18%) .NET
10 23 (20.18%) Mathematics
11 22 (19.30%) Node.js
12 21 (18.42%) GLSL
12 21 (18.42%) Qt
12 21 (18.42%) HLSL
12 21 (18.42%) VMware
12 21 (18.42%) NetBeans
12 21 (18.42%) MFC
12 21 (18.42%) 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 11 (9.65%) Apache
2 8 (7.02%) nginx
2 8 (7.02%) OpenStack
2 8 (7.02%) Tomcat
3 3 (2.63%) BizTalk Server
4 1 (0.88%) Elasticsearch
4 1 (0.88%) Jetty
4 1 (0.88%) Oracle Service Bus
4 1 (0.88%) Oracle SOA Suite
4 1 (0.88%) SharePoint
4 1 (0.88%) WebLogic
Applications
1 5 (4.39%) Microsoft Office
2 1 (0.88%) Microsoft Excel
2 1 (0.88%) Microsoft PowerPoint
Business Applications
1 4 (3.51%) Magento
Cloud Services
1 20 (17.54%) AWS
2 12 (10.53%) Azure
2 12 (10.53%) GCP
3 4 (3.51%) SaaS
4 3 (2.63%) Amazon CloudWatch
4 3 (2.63%) Datadog
4 3 (2.63%) IaaS
4 3 (2.63%) PaaS
5 2 (1.75%) Amazon S3
6 1 (0.88%) GitHub
6 1 (0.88%) OpenShift
Communications & Networking
1 39 (34.21%) TCP/IP
2 24 (21.05%) Ethernet
3 11 (9.65%) WAN
4 10 (8.77%) LAN
4 10 (8.77%) SAN
5 7 (6.14%) Wireless
6 6 (5.26%) HTTP
7 4 (3.51%) Broadband
7 4 (3.51%) DNS
7 4 (3.51%) iSCSI
7 4 (3.51%) SSH
8 3 (2.63%) 5G
9 2 (1.75%) NAS
10 1 (0.88%) 4G
10 1 (0.88%) DHCP
10 1 (0.88%) FTP
10 1 (0.88%) HTTPS
10 1 (0.88%) LTE
10 1 (0.88%) RNC
10 1 (0.88%) SSL
Database & Business Intelligence
1 18 (15.79%) MySQL
2 12 (10.53%) Relational Database
3 7 (6.14%) BigQuery
4 6 (5.26%) Oracle Database
4 6 (5.26%) PostgreSQL
4 6 (5.26%) SQL Server
5 4 (3.51%) Redis
6 3 (2.63%) Amazon Aurora
6 3 (2.63%) Amazon DynamoDB
6 3 (2.63%) Amazon RDS
6 3 (2.63%) Oracle Exadata
7 2 (1.75%) Apache Cassandra
8 1 (0.88%) Big Data
8 1 (0.88%) Data Warehouse
8 1 (0.88%) MongoDB
8 1 (0.88%) NoSQL
8 1 (0.88%) Oracle Database 12c
8 1 (0.88%) Oracle ODI
8 1 (0.88%) SQL Server Analysis Services
8 1 (0.88%) Sybase ASE
Development Applications
1 30 (26.32%) Git (software)
2 23 (20.18%) Eclipse
3 21 (18.42%) NetBeans
3 21 (18.42%) Visual Studio
4 3 (2.63%) Jenkins
4 3 (2.63%) JIRA
5 2 (1.75%) AppScan
5 2 (1.75%) Burp Suite
5 2 (1.75%) gcov
5 2 (1.75%) Gradle
5 2 (1.75%) Rational DOORS
5 2 (1.75%) Rational Rhapsody
5 2 (1.75%) Rational Team Concert
5 2 (1.75%) SoapUI
6 1 (0.88%) Gatling
6 1 (0.88%) GitLab
6 1 (0.88%) gulp
6 1 (0.88%) Maven
6 1 (0.88%) Selenium
6 1 (0.88%) Sonatype Nexus
General
1 24 (21.05%) Aerospace
1 24 (21.05%) Military
2 13 (11.40%) Law
3 11 (9.65%) Telecoms
4 7 (6.14%) Back Office
5 5 (4.39%) Finance
6 4 (3.51%) Retail
7 3 (2.63%) Banking
7 3 (2.63%) Games
8 2 (1.75%) Investment Banking
9 1 (0.88%) Manufacturing
Job Titles
1 17 (14.91%) Developer
2 14 (12.28%) Analyst
3 10 (8.77%) Infrastructure Engineer
4 9 (7.89%) Active Directory Analyst
5 7 (6.14%) Architect
6 6 (5.26%) Infrastructure Architect
6 6 (5.26%) PHP Developer
6 6 (5.26%) Software Engineer
7 5 (4.39%) Administrator
7 5 (4.39%) SOC Analyst
7 5 (4.39%) Technical Analyst
8 4 (3.51%) Embedded Engineer
8 4 (3.51%) Full Stack Developer
8 4 (3.51%) Microsoft Engineer
8 4 (3.51%) Microsoft Infrastructure Engineer
9 3 (2.63%) DBA
9 3 (2.63%) Delivery Manager
9 3 (2.63%) Security Incident Analyst
9 3 (2.63%) Senior Developer
9 3 (2.63%) Unix Administrator
Libraries, Frameworks & Software Standards
1 30 (26.32%) Web Services
2 23 (20.18%) .NET
3 22 (19.30%) Node.js
4 21 (18.42%) ActiveX
4 21 (18.42%) DirectX
4 21 (18.42%) MFC
4 21 (18.42%) OpenGL
4 21 (18.42%) Qt
5 13 (11.40%) LAMP
6 10 (8.77%) HTML
7 9 (7.89%) AngularJS
8 8 (7.02%) jQuery
8 8 (7.02%) Laravel
9 7 (6.14%) CSS
9 7 (6.14%) LEMP Stack
9 7 (6.14%) React
10 4 (3.51%) HTML5
10 4 (3.51%) REST
10 4 (3.51%) XHTML
10 4 (3.51%) XSL
Miscellaneous
1 8 (7.02%) Clustering
1 8 (7.02%) Data Centre
1 8 (7.02%) Mobile App
2 7 (6.14%) Analytical Skills
3 5 (4.39%) Linux Command Line
4 4 (3.51%) Data Structures
4 4 (3.51%) Management Information System
4 4 (3.51%) Public Cloud
5 3 (2.63%) Client/Server
5 3 (2.63%) Derivative
5 3 (2.63%) HP Superdome
5 3 (2.63%) Oracle Exalogic
5 3 (2.63%) Replication
5 3 (2.63%) Security Operations Centre
6 2 (1.75%) EMC Centera
6 2 (1.75%) EMC VMAX
6 2 (1.75%) EMC VNX
6 2 (1.75%) EMC VNXe
6 2 (1.75%) Private Cloud
7 1 (0.88%) VHDL
Operating Systems
1 60 (52.63%) Windows
2 23 (20.18%) Unix
3 16 (14.04%) Red Hat Enterprise Linux
4 14 (12.28%) Solaris
5 12 (10.53%) Windows Server
6 10 (8.77%) Ubuntu
7 9 (7.89%) AIX
7 9 (7.89%) CentOS
8 7 (6.14%) Windows Server 2012
9 3 (2.63%) HPUX
9 3 (2.63%) SUSE
9 3 (2.63%) VMS
10 2 (1.75%) Android
10 2 (1.75%) Apple iOS
10 2 (1.75%) Embedded Linux
10 2 (1.75%) Windows 2000
10 2 (1.75%) Windows Server 2003
10 2 (1.75%) Windows Server 2008
11 1 (0.88%) CoreOS
11 1 (0.88%) Data ONTAP
Processes & Methodologies
1 37 (32.46%) Agile Software Development
2 32 (28.07%) Software Engineering
3 31 (27.19%) Scrum
4 23 (20.18%) Mathematics
5 17 (14.91%) DevOps
5 17 (14.91%) ITIL
6 13 (11.40%) Data Analysis
7 12 (10.53%) Information Security
7 12 (10.53%) MVC
8 11 (9.65%) Performance Tuning
8 11 (9.65%) Problem-Solving
9 10 (8.77%) Cybersecurity
9 10 (8.77%) Data Cleansing
9 10 (8.77%) Infrastructure Engineering
9 10 (8.77%) SIEM
10 9 (7.89%) Capacity Management
10 9 (7.89%) Capacity Planning
10 9 (7.89%) E-Commerce
10 9 (7.89%) Mentoring
10 9 (7.89%) OO
Programming Languages
1 39 (34.21%) Java
2 31 (27.19%) JavaScript
3 30 (26.32%) C++
4 21 (18.42%) C#
4 21 (18.42%) GLSL
4 21 (18.42%) HLSL
5 19 (16.67%) Python
6 14 (12.28%) PHP
6 14 (12.28%) PowerShell
7 13 (11.40%) Shell Script
8 12 (10.53%) SQL
9 8 (7.02%) C
10 7 (6.14%) Perl
11 5 (4.39%) Bash Shell
12 4 (3.51%) Ruby
13 3 (2.63%) Embedded C++
14 2 (1.75%) Java 8
14 2 (1.75%) Korn
14 2 (1.75%) Objective-C
15 1 (0.88%) ES6
Qualifications
1 30 (26.32%) SC Cleared
1 30 (26.32%) Security Cleared
2 26 (22.81%) Degree
3 2 (1.75%) CEH
3 2 (1.75%) CISSP
3 2 (1.75%) Computer Science Degree
3 2 (1.75%) SANS
4 1 (0.88%) DV Cleared
4 1 (0.88%) MySQL Certification
4 1 (0.88%) RHCA
4 1 (0.88%) RHCE
Quality Assurance & Compliance
1 3 (2.63%) ISO/IEC 27001
2 2 (1.75%) COBIT
2 2 (1.75%) MISRA
System Software
1 26 (22.81%) Active Directory
2 16 (14.04%) VMware Infrastructure
3 10 (8.77%) Hyper-V
4 7 (6.14%) Docker
4 7 (6.14%) vSphere
5 6 (5.26%) ISA Server
6 5 (4.39%) SRDF
7 3 (2.63%) Ceph
7 3 (2.63%) NFS
7 3 (2.63%) Veritas Cluster Server
7 3 (2.63%) VMware ESXi
7 3 (2.63%) XenApp
7 3 (2.63%) XenDesktop
8 2 (1.75%) Veritas Volume Manager
9 1 (0.88%) Firmware
9 1 (0.88%) FreeRADIUS
Systems Management
1 15 (13.16%) Kubernetes
2 11 (9.65%) Terraform
3 7 (6.14%) Norton AntiVirus
3 7 (6.14%) vCenter Server
4 4 (3.51%) Ansible
4 4 (3.51%) Puppet
5 3 (2.63%) Grafana
5 3 (2.63%) Prometheus
5 3 (2.63%) SCCM
5 3 (2.63%) SCOM
5 3 (2.63%) Single Sign-On
5 3 (2.63%) Tivoli
6 2 (1.75%) EMC TimeFinder
6 2 (1.75%) NetApp OnCommand
6 2 (1.75%) Tivoli Storage Manager
6 2 (1.75%) WebInspect
7 1 (0.88%) Docker Swarm
7 1 (0.88%) Galera Cluster
7 1 (0.88%) IBM BigFix
7 1 (0.88%) logstash
Vendors
1 27 (23.68%) Microsoft
2 21 (18.42%) VMware
3 16 (14.04%) HP
4 15 (13.16%) Oracle
5 14 (12.28%) NetApp
6 10 (8.77%) Citrix
6 10 (8.77%) Red Hat
7 8 (7.02%) Cisco
7 8 (7.02%) Symantec
8 5 (4.39%) CyberArk
8 5 (4.39%) EMC
8 5 (4.39%) Veritas
9 4 (3.51%) Google
9 4 (3.51%) hybris
9 4 (3.51%) IBM
9 4 (3.51%) Percona
9 4 (3.51%) Zend
10 3 (2.63%) Aruba
10 3 (2.63%) Juniper
10 3 (2.63%) Qualys