The following table provides summary statistics for contract job vacancies advertised in Hertfordshire with a requirement for Perl skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Perl over the 3 months to 26 June 2017 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.

Perl
East of England / Hertfordshire
3 months to
26 Jun 2017
Same period 2016 Same period 2015
Rank 37 51 37
Rank change year-on-year +14 -14  
Contract jobs citing Perl 24 6 42
As % of all contract IT jobs advertised in Hertfordshire 3.80% 0.93% 4.70%
As % of the Programming Languages category 9.56% 3.28% 14.14%
Number of daily rates quoted 7 4 13
Median daily rate £420 £350 £315
Median daily rate % change year-on-year +20.00% +11.28%  
90% offered a daily rate of more than £396 £309 £280
10% offered a daily rate of more than £490 £393 £408
UK excluding London median daily rate £425 £400 £375
% change year-on-year +6.25% +6.66%  
Number of hourly rates quoted 0 0 1
Median hourly rate - - £32.50
UK excluding London median hourly rate £42.50 £38.50 £37.50
% change year-on-year +10.38% +2.66%  

Perl is in the programming language skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Hertfordshire with a requirement for programming language skills.

Contract Programming Language Skills
Hertfordshire
Contract job vacancies with a requirement for programming language skills 251 183 297
As % of all contract IT job vacancies advertised in Hertfordshire 39.78% 28.37% 33.22%
Number of daily rates quoted 144 102 135
Median daily rate £390 £400 £350
Median daily rate % change year-on-year -2.50% +14.28%  
90% offered a daily rate of more than £289 £275 £275
10% offered a daily rate of more than £525 £490 £500
UK excluding London median daily rate £400 £375 £350
% change year-on-year +6.66% +7.14%  
Number of hourly rates quoted 11 9 17
Median hourly rate £42.50 £50.00 £32.50
Median hourly rate % change year-on-year -15.00% +53.84%  
90% offered a hourly rate of more than £15.00 £15.00 £20.94
10% offered a hourly rate of more than £46.10 £52.50 £40.35
UK excluding London median hourly rate £42.50 £37.50 £37.00
% change year-on-year +13.33% +1.35%  

Perl
Job Vacancy Trend in Hertfordshire

The job posting trend of jobs advertised in Hertfordshire citing Perl as a proportion of all contract or permanent IT jobs with a match in the Programming Languages category.

Job vacancy trend for Perl in Hertfordshire

Perl
Contractor Daily Rate Trend in Hertfordshire

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

Contractor daily rate trend for Perl in Hertfordshire

Perl
Contractor Daily Rate Histogram in Hertfordshire

The daily rate distribution of IT jobs citing Perl in Hertfordshire over the 3 months to 26 June 2017.

Contractor daily rate histogram for Perl in Hertfordshire

Perl
Contractor Hourly Rate Trend in Hertfordshire

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

Contractor hourly rate trend for Perl in Hertfordshire

Perl
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 Perl within the Hertfordshire region over the 3 months to 26 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Welwyn Garden City +6 4 - -
Hemel Hempstead - 1 £450 -
Welwyn - 1 £550 -
Hatfield - 1 £413 - 1
Perl
East of England

For the 6 months to 26 June 2017, IT contractor jobs citing Perl also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Hertfordshire region with a requirement for Perl.

1 38 (88.37%) Python
2 31 (72.09%) Linux
3 22 (51.16%) Bash Shell
4 21 (48.84%) Ruby
5 20 (46.51%) Apache
5 20 (46.51%) Tomcat
5 20 (46.51%) Java
5 20 (46.51%) SSL
5 20 (46.51%) Firewall
5 20 (46.51%) PostgreSQL
5 20 (46.51%) LAPP Stack
6 19 (44.19%) Clustering
6 19 (44.19%) TCP/IP
7 18 (41.86%) Puppet
8 16 (37.21%) VMware
8 16 (37.21%) VMware Infrastructure
8 16 (37.21%) PowerShell
9 15 (34.88%) Software Engineering
9 15 (34.88%) SQL
9 15 (34.88%) Windows
10 14 (32.56%) VMS
10 14 (32.56%) VirtualBox
10 14 (32.56%) Data Centre
10 14 (32.56%) Programme Delivery
11 12 (27.91%) DevOps
11 12 (27.91%) Salt
11 12 (27.91%) RHCE
11 12 (27.91%) Finance
11 12 (27.91%) Configuration Management
11 12 (27.91%) Computer Science

Perl
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 20 (46.51%) Apache
1 20 (46.51%) Tomcat
2 4 (9.30%) Exchange Server 2000
2 4 (9.30%) Exchange Server 2003
2 4 (9.30%) Exchange Server 5.5
2 4 (9.30%) MS Exchange
3 1 (2.33%) OpenStack
Applications
1 4 (9.30%) Microsoft Office
Business Applications
1 7 (16.28%) Payment Gateway
Cloud Services
1 2 (4.65%) Amazon AWS
2 1 (2.33%) Dropbox
2 1 (2.33%) Google Cloud Platform
2 1 (2.33%) Google Drive
2 1 (2.33%) Microsoft Azure
Communications & Networking
1 20 (46.51%) Firewall
1 20 (46.51%) SSL
2 19 (44.19%) TCP/IP
3 10 (23.26%) Internet
4 7 (16.28%) Network Security
5 4 (9.30%) LAN
5 4 (9.30%) WAN
5 4 (9.30%) X.500
6 1 (2.33%) HTTP
6 1 (2.33%) iSCSI
6 1 (2.33%) LDAP
6 1 (2.33%) NAS
6 1 (2.33%) OpenLDAP
6 1 (2.33%) SAN
6 1 (2.33%) SNMP
6 1 (2.33%) Wireless
Database & Business Intelligence
1 20 (46.51%) PostgreSQL
2 11 (25.58%) MySQL
Development Applications
1 7 (16.28%) IDA Disassembler
1 7 (16.28%) Metasploit
1 7 (16.28%) OllyDbg
2 1 (2.33%) Hudson
2 1 (2.33%) Jenkins
General
1 12 (27.91%) Finance
2 11 (25.58%) Law
3 2 (4.65%) Banking
4 1 (2.33%) Retail
4 1 (2.33%) Retail Banking
4 1 (2.33%) Telecoms
Job Titles
1 10 (23.26%) DevOps Engineer
1 10 (23.26%) Software Engineer
2 6 (13.95%) Analyst
2 6 (13.95%) Consultant
2 6 (13.95%) Incident Analyst
2 6 (13.95%) Malware Analyst
2 6 (13.95%) Security Consultant
3 4 (9.30%) Administrator
3 4 (9.30%) Security Engineer
3 4 (9.30%) Systems Administrator
4 3 (6.98%) Audio Visual Engineer
4 3 (6.98%) Malware Consultant
4 3 (6.98%) Security Incident Consultant
4 3 (6.98%) Security Specialist
4 3 (6.98%) Security Tester
4 3 (6.98%) Systems Engineer
4 3 (6.98%) Tester
5 2 (4.65%) Automation Consultant
5 2 (4.65%) Automation Engineer
5 2 (4.65%) Security Incident Analyst
Libraries, Frameworks & Software Standards
1 20 (46.51%) LAPP Stack
2 11 (25.58%) LAMP
3 1 (2.33%) CSS
3 1 (2.33%) HTML
3 1 (2.33%) JSON
3 1 (2.33%) Regular Expression
3 1 (2.33%) XML
Miscellaneous
1 19 (44.19%) Clustering
2 14 (32.56%) Data Centre
3 12 (27.91%) Computer Science
4 7 (16.28%) Cyberthreat
5 4 (9.30%) Cyber Kill Chain
6 2 (4.65%) Analytical Skills
7 1 (2.33%) EMC VNX
7 1 (2.33%) Enterprise Storage
7 1 (2.33%) Hybrid Cloud
Operating Systems
1 31 (72.09%) Linux
2 15 (34.88%) Windows
3 14 (32.56%) VMS
4 6 (13.95%) Unix
5 5 (11.63%) Windows Server
6 4 (9.30%) HPUX
6 4 (9.30%) Solaris
6 4 (9.30%) Windows 2000 Server
7 3 (6.98%) Kali Linux
8 2 (4.65%) Ubuntu
9 1 (2.33%) CentOS
9 1 (2.33%) Data ONTAP
9 1 (2.33%) Debian
Processes & Methodologies
1 15 (34.88%) Software Engineering
2 14 (32.56%) Programme Delivery
3 12 (27.91%) Configuration Management
3 12 (27.91%) DevOps
3 12 (27.91%) High Availability
4 7 (16.28%) Actionable Insight
4 7 (16.28%) Computer Forensics
4 7 (16.28%) Information Security
4 7 (16.28%) Malware Analysis
4 7 (16.28%) Test Automation
4 7 (16.28%) Threat Analysis
5 6 (13.95%) User Acceptance Testing
6 5 (11.63%) Incident Management
7 4 (9.30%) Data Protection
7 4 (9.30%) Performance Testing
7 4 (9.30%) Usability Testing
8 3 (6.98%) Penetration Testing
9 2 (4.65%) Time Management
10 1 (2.33%) Performance Management
10 1 (2.33%) Use Case
Programming Languages
1 38 (88.37%) Python
2 22 (51.16%) Bash Shell
3 21 (48.84%) Ruby
4 20 (46.51%) Java
5 16 (37.21%) PowerShell
6 15 (34.88%) SQL
7 6 (13.95%) C
8 5 (11.63%) C#
8 5 (11.63%) Shell Script
8 5 (11.63%) VB
9 3 (6.98%) Assembly Language
10 1 (2.33%) AWK
10 1 (2.33%) JavaScript
10 1 (2.33%) sed
Qualifications
1 12 (27.91%) RHCE
2 4 (9.30%) DV Cleared
2 4 (9.30%) Security Cleared
3 1 (2.33%) EMC Certification
3 1 (2.33%) NCSA
Quality Assurance & Compliance
1 1 (2.33%) ISO/IEC 27001
1 1 (2.33%) PCI DSS
1 1 (2.33%) Sarbanes-Oxley
System Software
1 16 (37.21%) VMware Infrastructure
2 14 (32.56%) VirtualBox
3 4 (9.30%) Samba
4 1 (2.33%) Docker
4 1 (2.33%) Hyper-V
4 1 (2.33%) Virtual Desktop
Systems Management
1 18 (41.86%) Puppet
2 12 (27.91%) Salt
3 7 (16.28%) EnCase
4 1 (2.33%) EMC VPLEX
4 1 (2.33%) Opscode Chef
4 1 (2.33%) Symantec Endpoint Protection
4 1 (2.33%) ZABBIX
Vendors
1 16 (37.21%) VMware
2 5 (11.63%) HP
3 4 (9.30%) Cisco
3 4 (9.30%) Sun
4 3 (6.98%) EMC
5 2 (4.65%) Google
6 1 (2.33%) Acronis
6 1 (2.33%) AppSense
6 1 (2.33%) Citrix
6 1 (2.33%) Dell
6 1 (2.33%) FireEye
6 1 (2.33%) Hitachi
6 1 (2.33%) Intel
6 1 (2.33%) Isilon
6 1 (2.33%) McAfee
6 1 (2.33%) Microsoft
6 1 (2.33%) NetApp
6 1 (2.33%) Splunk
6 1 (2.33%) Symantec