Period
to 19 November 2017

The following table provides summary statistics for contract job vacancies 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 19 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
6 months to
19 Nov 2017
Same period 2016 Same period 2015
Rank 870 894 873
Rank change year-on-year +24 -21 -53
Contract jobs citing POSIX 5 2 19
As % of all contract IT jobs advertised in the UK 0.005% 0.002% 0.017%
As % of the Libraries, Frameworks & Software Standards category 0.015% 0.006% 0.059%
Number of daily rates quoted 2 1 13
UK median daily rate £413 £500 £350
Median daily rate % change year-on-year -17.50% +42.86% -3.45%
10th Percentile £401 £500 £300
90th Percentile £434 £500 £483
UK excluding London median daily rate £413 £500 £415
% change year-on-year -17.50% +20.48% +14.48%
Number of hourly rates quoted 0 0 12
UK median hourly rate - - £36.25
UK excluding London 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 with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
UK
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 32518 31826 32407
As % of all contract IT jobs advertised in the UK 32.07% 30.35% 28.28%
Number of daily rates quoted 22959 22067 22211
UK median daily rate £450 £425 £410
Median daily rate % change year-on-year +5.88% +3.66% +2.50%
10th Percentile £313 £300 £275
90th Percentile £625 £588 £588
UK excluding London median daily rate £400 £388 £375
% change year-on-year +3.23% +3.33% +7.14%
Number of hourly rates quoted 373 364 554
UK median hourly rate £40.00 £37.50 £37.50
Median hourly rate % change year-on-year +6.67% - +7.14%
10th Percentile £18.10 £14.19 £15.01
90th Percentile £52.50 £51.40 £54.97
UK excluding London median hourly rate £41.00 £37.00 £37.50
% change year-on-year +10.81% -1.33% +10.29%

POSIX
Job Vacancy Trend

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

Job vacancy trend for POSIX in the UK

POSIX
Contractor Daily Rate Trend

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

Contractor daily rate trend for POSIX in the UK

POSIX
Contractor Hourly Rate Trend

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

Contractor hourly rate trend for POSIX in the UK

POSIX
Top 5 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing POSIX within the UK over the 6 months to 19 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
England +24 4 £413 -17.50%
UK excluding London +24 2 £413 -17.50%
London - 2 - -
South East +7 1 £400 -20.00%
East of England -14 1 £425 -

For the 6 months to 19 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 with a requirement for POSIX.

1 5 (100.00%) Linux
2 4 (80.00%) C
3 3 (60.00%) Software Engineering
3 3 (60.00%) Open Source
4 2 (40.00%) Agile Software Development
4 2 (40.00%) STB
4 2 (40.00%) Device Driver
4 2 (40.00%) Device Driver Development
4 2 (40.00%) Open Source Development
4 2 (40.00%) Software Architecture
4 2 (40.00%) Java
4 2 (40.00%) Python
4 2 (40.00%) Digital TV
4 2 (40.00%) DVB
5 1 (20.00%) QNX
5 1 (20.00%) Finance
5 1 (20.00%) Automotive
5 1 (20.00%) LDAP
5 1 (20.00%) Kerberos
5 1 (20.00%) Windows
5 1 (20.00%) C++
5 1 (20.00%) JBoss
5 1 (20.00%) Apache
5 1 (20.00%) Tomcat
5 1 (20.00%) Ruby
5 1 (20.00%) Ubuntu
5 1 (20.00%) Degree
5 1 (20.00%) Unit Testing
5 1 (20.00%) Multithreading
5 1 (20.00%) Kanban

POSIX
Co-occurring IT Skills 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 (20.00%) Apache
1 1 (20.00%) JBoss
1 1 (20.00%) nginx
1 1 (20.00%) Tomcat
Cloud Services
1 1 (20.00%) Amazon AWS
1 1 (20.00%) Amazon CloudWatch
1 1 (20.00%) Amazon EC2
1 1 (20.00%) Amazon Glacier
1 1 (20.00%) Amazon S3
1 1 (20.00%) AWS CloudFormation
1 1 (20.00%) Route 53
1 1 (20.00%) Virtual Private Cloud
Communications & Networking
1 2 (40.00%) DVB
2 1 (20.00%) Kerberos
2 1 (20.00%) LDAP
Database & Business Intelligence
1 1 (20.00%) Amazon RDS
Development Applications
1 1 (20.00%) GCC
1 1 (20.00%) Git (software)
1 1 (20.00%) SonarQube
General
1 1 (20.00%) Automotive
1 1 (20.00%) Finance
Job Titles
1 2 (40.00%) Software Engineer
2 1 (20.00%) Administrator
2 1 (20.00%) AWS Administrator
2 1 (20.00%) C Developer
2 1 (20.00%) Developer
2 1 (20.00%) Linux Administrator
2 1 (20.00%) Linux Systems Administrator
2 1 (20.00%) Software Developer
2 1 (20.00%) Systems Administrator
Miscellaneous
1 2 (40.00%) Device Driver
1 2 (40.00%) Digital TV
1 2 (40.00%) STB
2 1 (20.00%) Embedded Systems
2 1 (20.00%) Infotainment
2 1 (20.00%) Linux Command Line
2 1 (20.00%) State Machine
Operating Systems
1 5 (100.00%) Linux
2 1 (20.00%) Android
2 1 (20.00%) CentOS
2 1 (20.00%) Debian
2 1 (20.00%) Mac OS
2 1 (20.00%) Ubuntu
2 1 (20.00%) Windows
Processes & Methodologies
1 3 (60.00%) Open Source
1 3 (60.00%) Software Engineering
2 2 (40.00%) Agile Software Development
2 2 (40.00%) Device Driver Development
2 2 (40.00%) Open Source Development
2 2 (40.00%) Software Architecture
3 1 (20.00%) BDD
3 1 (20.00%) Continuous Improvement
3 1 (20.00%) Kanban
3 1 (20.00%) Multithreaded Programming
3 1 (20.00%) Multithreading
3 1 (20.00%) Scrum
3 1 (20.00%) Unit Testing
Programming Languages
1 4 (80.00%) C
2 2 (40.00%) Java
2 2 (40.00%) Python
3 1 (20.00%) AWK
3 1 (20.00%) Bash Shell
3 1 (20.00%) C++
3 1 (20.00%) Ruby
3 1 (20.00%) sed
Qualifications
1 1 (20.00%) Degree
1 1 (20.00%) Master's Degree
System Software
1 1 (20.00%) iptables
Systems Management
1 1 (20.00%) Ansible
1 1 (20.00%) HAProxy
1 1 (20.00%) Opscode Chef
1 1 (20.00%) Puppet
1 1 (20.00%) SELinux
Vendors
1 1 (20.00%) QNX