Period
to 20 November 2017

The following table provides summary statistics for contract job vacancies advertised in England with a requirement for POSIX skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited POSIX over the 6 months to 20 November 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.

Portable Operating System Interface (POSIX)
UK > England
6 months to
20 Nov 2017
Same period 2016 Same period 2015
Rank 845 874 847
Rank change year-on-year +29 -27 -38
Contract jobs citing POSIX 4 2 24
As % of all contract IT jobs advertised in England 0.004% 0.002% 0.023%
As % of the Libraries, Frameworks & Software Standards category 0.013% 0.007% 0.080%
Number of daily rates quoted 2 1 16
England median daily rate £413 £500 £406
Median daily rate % change year-on-year -17.50% +23.08% +12.07%
10th Percentile £401 £500 £300
90th Percentile £434 £500 £475
UK median daily rate £413 £500 £406
% change year-on-year -17.50% +23.08% +12.07%
Number of hourly rates quoted 0 0 12
England median hourly rate - - £36.25
UK median hourly rate - - £36.25

POSIX is in the Software Libraries and Frameworks category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in England with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
England
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 30485 29636 30170
As % of all contract IT jobs advertised in England 32.41% 30.67% 28.87%
Number of daily rates quoted 21696 20704 20910
England median daily rate £463 £425 £413
Median daily rate % change year-on-year +8.82% +3.03% +3.13%
10th Percentile £313 £300 £275
90th Percentile £625 £588 £588
UK median daily rate £450 £425 £410
% change year-on-year +5.88% +3.66% +2.50%
Number of hourly rates quoted 369 342 509
England median hourly rate £40.00 £37.50 £37.50
Median hourly rate % change year-on-year +6.67% - +10.29%
10th Percentile £18.70 £14.56 £14.98
90th Percentile £52.50 £50.00 £52.50
UK median hourly rate £40.00 £37.50 £37.50
% change year-on-year +6.67% - +8.70%

POSIX
Job Vacancy Trend in England

Job postings citing POSIX as a percentage of all IT jobs advertised in England.

Job vacancy trend for POSIX in England

POSIX
Contractor Daily Rate Trend in England

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

Contractor daily rate trend for POSIX in England

POSIX
Contractor Hourly Rate Trend in England

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

Contractor hourly rate trend for POSIX in England

POSIX
Contract Job Locations in England

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing POSIX within the England region over the 6 months to 20 November 2017. 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
London - 2 - -
South East +6 1 £400 -20.00% 1
East of England -16 1 £425 -
POSIX
UK

For the 6 months to 20 November 2017, IT contractor jobs citing POSIX 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 England region with a requirement for POSIX.

1 4 (100.00%) Linux
2 3 (75.00%) C
2 3 (75.00%) Software Engineering
2 3 (75.00%) Open Source
3 2 (50.00%) Digital TV
3 2 (50.00%) DVB
3 2 (50.00%) STB
3 2 (50.00%) Open Source Development
3 2 (50.00%) Device Driver Development
3 2 (50.00%) Python
3 2 (50.00%) Device Driver
3 2 (50.00%) Software Architecture
4 1 (25.00%) BDD
4 1 (25.00%) Puppet
4 1 (25.00%) GCC
4 1 (25.00%) Continuous Improvement
4 1 (25.00%) Embedded Systems
4 1 (25.00%) Route 53
4 1 (25.00%) Amazon RDS
4 1 (25.00%) sed
4 1 (25.00%) Opscode Chef
4 1 (25.00%) HAProxy
4 1 (25.00%) Ansible
4 1 (25.00%) SELinux
4 1 (25.00%) AWS CloudFormation
4 1 (25.00%) Virtual Private Cloud
4 1 (25.00%) Amazon Glacier
4 1 (25.00%) iptables
4 1 (25.00%) Amazon CloudWatch
4 1 (25.00%) SonarQube

POSIX
Co-occurring IT Skills in England 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 1 (25.00%) Apache
1 1 (25.00%) JBoss
1 1 (25.00%) nginx
1 1 (25.00%) Tomcat
Cloud Services
1 1 (25.00%) Amazon AWS
1 1 (25.00%) Amazon CloudWatch
1 1 (25.00%) Amazon EC2
1 1 (25.00%) Amazon Glacier
1 1 (25.00%) Amazon S3
1 1 (25.00%) AWS CloudFormation
1 1 (25.00%) Route 53
1 1 (25.00%) Virtual Private Cloud
Communications & Networking
1 2 (50.00%) DVB
2 1 (25.00%) Kerberos
2 1 (25.00%) LDAP
Database & Business Intelligence
1 1 (25.00%) Amazon RDS
Development Applications
1 1 (25.00%) GCC
1 1 (25.00%) Git (software)
1 1 (25.00%) SonarQube
General
1 1 (25.00%) Finance
Job Titles
1 2 (50.00%) Software Engineer
2 1 (25.00%) Administrator
2 1 (25.00%) AWS Administrator
2 1 (25.00%) C Developer
2 1 (25.00%) Developer
2 1 (25.00%) Linux Administrator
2 1 (25.00%) Linux Systems Administrator
2 1 (25.00%) Software Developer
2 1 (25.00%) Systems Administrator
Miscellaneous
1 2 (50.00%) Device Driver
1 2 (50.00%) Digital TV
1 2 (50.00%) STB
2 1 (25.00%) Embedded Systems
2 1 (25.00%) Linux Command Line
2 1 (25.00%) State Machine
Operating Systems
1 4 (100.00%) Linux
2 1 (25.00%) CentOS
2 1 (25.00%) Debian
2 1 (25.00%) Mac OS
2 1 (25.00%) Ubuntu
2 1 (25.00%) Windows
Processes & Methodologies
1 3 (75.00%) Open Source
1 3 (75.00%) Software Engineering
2 2 (50.00%) Device Driver Development
2 2 (50.00%) Open Source Development
2 2 (50.00%) Software Architecture
3 1 (25.00%) Agile Software Development
3 1 (25.00%) BDD
3 1 (25.00%) Continuous Improvement
3 1 (25.00%) Kanban
3 1 (25.00%) Unit Testing
Programming Languages
1 3 (75.00%) C
2 2 (50.00%) Python
3 1 (25.00%) AWK
3 1 (25.00%) Bash Shell
3 1 (25.00%) Java
3 1 (25.00%) Ruby
3 1 (25.00%) sed
System Software
1 1 (25.00%) iptables
Systems Management
1 1 (25.00%) Ansible
1 1 (25.00%) HAProxy
1 1 (25.00%) Opscode Chef
1 1 (25.00%) Puppet
1 1 (25.00%) SELinux