The table below looks at the statistics for POSIX skills in IT contracts advertised across the UK. Included is a guide to the contractor rates offered in IT contracts that have cited POSIX over the 3 months to 8 December 2016 with a comparison to the same period over the previous 2 years.

Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.

3 months to
8 Dec 2016
Same period 2015 Same period 2014
Portable Operating System Interface (POSIX)
Rank 615 628 628
Rank change year-on-year
+13 0
Contract jobs citing POSIX 6 16 5
As % of all contract IT jobs located in the UK 0.012% 0.029% 0.009%
As % of the Libraries, Frameworks & Software Standards category 0.039% 0.10% 0.033%
Number of daily rates quoted 3 10 2
Median daily rate £425 £444 £375
Median daily rate % change year-on-year
-4.22% +18.33%
UK excluding London median daily rate £500 £420 £375
% change year-on-year
+19.04% +12.00%
Number of hourly rates quoted 0 2 0
Median hourly rate - £37.50 -
UK excluding London median hourly rate - £37.50 -

The following table is for comparison with the above and provides statistics for the entire Libraries, Frameworks & Software Standards category in contract jobs advertised across the UK.

Libraries, Frameworks & Software Standards Category
UK
Contract IT job ads with a match in the
Libraries, Frameworks & Software Standards category
15351 15820 15304
As % of all contract IT jobs located in the UK 30.85% 28.65% 27.10%
Number of daily rates quoted 10606 11015 10459
Median daily rate £425 £400 £400
Median daily rate % change year-on-year
+6.25% -
90% offered a daily rate of more than £308 £300 £275
10% offered a daily rate of more than £563 £550 £550
UK excluding London median daily rate £380 £375 £350
% change year-on-year
+1.33% +7.14%
Number of hourly rates quoted 148 259 172
Median hourly rate £40.00 £37.50 £35.00
Median hourly rate % change year-on-year
+6.66% +7.14%
90% offered a hourly rate of more than £16.44 £17.69 £17.50
10% offered a hourly rate of more than £50.00 £47.50 £50.00
UK excluding London median hourly rate £40.00 £37.50 £35.00
% change year-on-year
+6.66% +7.14%

POSIX
Jobs Demand Trend

The demand trend of contract jobs citing POSIX as a proportion of all IT contracts with a match in the Libraries, Frameworks & Software Standards category.

POSIX Jobs Demand Trend in the UK

POSIX
Daily Rate Trend

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

POSIX Daily Rate Trend in the UK

POSIX
Hourly Rate Trend

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

POSIX Hourly Rate Trend 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 3 months to 8 December 2016. 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
(Click see detailed
statistics and trends)
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
England +13 6 £425 -4.22% 1
London -6 5 £425 -8.10% 1
South East +28 1 £500 +19.04%
Oxfordshire - 1 £500 -
Oxford - 1 £500 -

POSIX
Top 30 Related IT Skills

For the 6 months to 8 December 2016, 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 7 (100.00%) Java
1 7 (100.00%) Linux
1 7 (100.00%) Python
2 6 (85.71%) C
2 6 (85.71%) Shell Script
3 5 (71.43%) Software Engineering
3 5 (71.43%) Internet
3 5 (71.43%) HTTP
3 5 (71.43%) TCP/IP
3 5 (71.43%) Unix
3 5 (71.43%) nginx
4 4 (57.14%) Load Testing
4 4 (57.14%) Open Source
4 4 (57.14%) Kernel Tuning
4 4 (57.14%) Graphite
4 4 (57.14%) Apache
4 4 (57.14%) DNS
4 4 (57.14%) SSL
4 4 (57.14%) BGP
4 4 (57.14%) PKI
5 2 (28.57%) IPv4
5 2 (28.57%) IPv6
5 2 (28.57%) Mentoring
6 1 (14.29%) Waterfall
6 1 (14.29%) Puppet
6 1 (14.29%) Cygwin
6 1 (14.29%) GCC
6 1 (14.29%) Digital Signal Processing
6 1 (14.29%) Signal Processing
6 1 (14.29%) High Availability

POSIX
Top Related 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 5 (71.43%) nginx
2 4 (57.14%) Apache
3 1 (14.29%) JBoss
3 1 (14.29%) Tomcat
Applications
1 1 (14.29%) Doxygen
Cloud Services
1 1 (14.29%) Amazon AWS
1 1 (14.29%) Amazon CloudWatch
1 1 (14.29%) Amazon EC2
1 1 (14.29%) Amazon Glacier
1 1 (14.29%) Amazon S3
1 1 (14.29%) AWS CloudFormation
1 1 (14.29%) Route 53
1 1 (14.29%) Virtual Private Cloud
Communications & Networking
1 5 (71.43%) HTTP
1 5 (71.43%) Internet
1 5 (71.43%) TCP/IP
2 4 (57.14%) BGP
2 4 (57.14%) DNS
2 4 (57.14%) SSL
3 2 (28.57%) IPv4
3 2 (28.57%) IPv6
4 1 (14.29%) Kerberos
4 1 (14.29%) LDAP
Database & Business Intelligence
1 1 (14.29%) Amazon RDS
Development Applications
1 1 (14.29%) Emacs
1 1 (14.29%) GCC
1 1 (14.29%) Git (software)
1 1 (14.29%) Mercurial
General
1 1 (14.29%) Aerospace
Job Titles
1 5 (71.43%) Software Engineer
2 4 (57.14%) Senior Software Engineer
3 2 (28.57%) Java Engineer
3 2 (28.57%) Java Software Engineer
3 2 (28.57%) Python Software Engineer
4 1 (14.29%) Architect
4 1 (14.29%) AWS Architect
4 1 (14.29%) Embedded Engineer
4 1 (14.29%) Senior Java Engineer
4 1 (14.29%) Senior Java Software Engineer
4 1 (14.29%) Software Validation Engineer
4 1 (14.29%) Systems Architect
4 1 (14.29%) Validation Engineer
Miscellaneous
1 4 (57.14%) PKI
2 1 (14.29%) Computer Science
2 1 (14.29%) Embedded Systems
2 1 (14.29%) MPEG
Operating Systems
1 7 (100.00%) Linux
2 5 (71.43%) Unix
3 1 (14.29%) CentOS
3 1 (14.29%) Debian
3 1 (14.29%) Ubuntu
Processes & Methodologies
1 5 (71.43%) Software Engineering
2 4 (57.14%) Kernel Tuning
2 4 (57.14%) Load Testing
2 4 (57.14%) Open Source
3 2 (28.57%) Mentoring
4 1 (14.29%) Agile Software Development
4 1 (14.29%) Computer Architecture
4 1 (14.29%) Continuous Improvement
4 1 (14.29%) Continuous Integration
4 1 (14.29%) Digital Signal Processing
4 1 (14.29%) High Availability
4 1 (14.29%) IC Design
4 1 (14.29%) Signal Processing
4 1 (14.29%) Validation
4 1 (14.29%) Waterfall
Programming Languages
1 7 (100.00%) Java
1 7 (100.00%) Python
2 6 (85.71%) C
2 6 (85.71%) Shell Script
3 1 (14.29%) AWK
3 1 (14.29%) Bash Shell
3 1 (14.29%) Ruby
3 1 (14.29%) sed
Qualifications
1 1 (14.29%) Degree
Quality Assurance & Compliance
1 1 (14.29%) MISRA
1 1 (14.29%) MISRA C
System Software
1 1 (14.29%) Cygwin
1 1 (14.29%) iptables
Systems Management
1 4 (57.14%) Graphite
2 1 (14.29%) Ansible
2 1 (14.29%) HAProxy
2 1 (14.29%) Opscode Chef
2 1 (14.29%) Puppet
2 1 (14.29%) SELinux