The table below looks at the statistics for POSIX skills in IT jobs advertised across the UK. Included is a guide to the average salaries offered in IT jobs that have cited POSIX over the 3 months to 24 December 2014 with a comparison to the same period in the previous 2 years.

Location
3 months to
24 Dec 2014
Same period 2013 Same period 2012
Portable Operating System Interface for UNIX (POSIX)
Rank 859 827 825
Rank change year-on-year
-32 -2
Permanent jobs citing POSIX 21 52 69
As % of all permanent IT jobs located in the UK 0.019% 0.048% 0.061%
As % of the Libraries, Frameworks & Software Standards category 0.052% 0.12% 0.14%
Number of salaries quoted 19 30 67
Average salary £42,500 £40,500 £45,000
Average salary % change year-on-year
+4.93% -10.00%
90% offered a salary of more than £30,000 £34,500 £37,300
10% offered a salary of more than £60,000 £70,500 £60,000
UK excluding London average salary £42,500 £44,000 £45,500
% change year-on-year
-3.40% -3.29%

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

Libraries, Frameworks & Software Standards Category
UK
Permanent IT job ads with a match in the
Libraries, Frameworks & Software Standards category
40720 44212 48079
As % of all permanent IT jobs located in the UK 36.86% 41.02% 42.20%
Number of salaries quoted 35086 37344 42863
Average salary £42,500 £42,500 £40,000
Average salary % change year-on-year
- +6.25%
90% offered a salary of more than £30,000 £29,000 £28,000
10% offered a salary of more than £62,500 £60,000 £62,500
UK excluding London average salary £40,000 £37,500 £37,500
% change year-on-year
+6.66% -

POSIX
Jobs Demand Trend

This chart provides the 3-month moving total of permanent IT jobs citing POSIX within the UK as a proportion of the total demand within the Libraries, Frameworks & Software Standards category.

POSIX Jobs Demand Trend in the UK

POSIX
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing POSIX within the UK.

POSIX Salary Trend in the UK

POSIX
Salary Histogram

This chart provides a salary histogram for IT jobs citing POSIX over the 3 months to 24 December 2014 within the UK.

POSIX Salary Histogram in the UK

POSIX
Top 21 Job Locations

The table below looks at the demand and provides a guide to the average salaries quoted in IT jobs citing POSIX within the UK over the 3 months to 24 December 2014. 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
(Use links below to see detailed
statistics and historical trends)
Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Average Salary
Last 3 Months
Average Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England -33 17 £42,500 -3.95% 1
South West -30 9 £45,000 +28.57% 1
London -5 5 £38,750 +49.03%
Cwmbran - 4 £42,500 -
South Wales - 4 £42,500 -
Wales - 4 £42,500 -
Torfaen - 4 £42,500 -
Devon -7 3 £30,000 -
South East -26 3 £42,500 -11.45%
Wiltshire - 3 £57,500 - 1
Chippenham - 3 £55,000 -
Paignton - 3 £30,000 -
Surrey -6 2 £42,500 -43.33%
Gloucestershire -30 2 £45,000 +50.00%
Guildford - 2 £42,500 -
Dorset - 1 £40,000 -
Swindon - 1 £60,000 - 1
Wareham - 1 £40,000 -
Hampshire - 1 £40,000 -
City of London - 1 £45,000 -
Farnborough - 1 £40,000 -

POSIX
Top 30 Related IT Skills

For the 6 months to 24 December 2014, IT jobs within the UK citing POSIX also mentioned the following IT skills in order of popularity. The figures indicate the number of jobs and their proportion against the total number of IT job ads sampled that cited POSIX.

1 23 (92.00%) Linux
2 19 (76.00%) C
3 16 (64.00%) C++
4 15 (60.00%) UNIX
5 11 (44.00%) TCP/IP
5 11 (44.00%) Software Engineering
5 11 (44.00%) Degree
6 9 (36.00%) HTML
6 9 (36.00%) Python
6 9 (36.00%) Pthreads
7 8 (32.00%) HTTP
7 8 (32.00%) Internet
8 7 (28.00%) JavaScript
8 7 (28.00%) Windows
9 6 (24.00%) Java
9 6 (24.00%) Embedded Linux
9 6 (24.00%) Cyber Security
9 6 (24.00%) Algorithms
10 5 (20.00%) MySQL
10 5 (20.00%) Apache
10 5 (20.00%) E-Commerce
10 5 (20.00%) SSL
10 5 (20.00%) Configuration Management
10 5 (20.00%) Advertising
10 5 (20.00%) Device Driver
10 5 (20.00%) Ruby
10 5 (20.00%) Marketing
10 5 (20.00%) Mobile Marketing
10 5 (20.00%) Relational Database
11 4 (16.00%) STL

POSIX
Top Related IT Skills by Category

For the 6 months to 24 December 2014, IT jobs within the UK citing POSIX also mentioned the following IT skills grouped by category. The figures indicate the number of jobs and their proportion against the total number of IT job ads sampled that cited POSIX. Up to 20 skills are shown per category.

Application Platforms
1 5 (20.00%) Apache
2 2 (8.00%) OpenStack
Applications
1 3 (12.00%) MS Excel
1 3 (12.00%) MS Visio
1 3 (12.00%) MS PowerPoint
Cloud Services
1 4 (16.00%) PaaS
Communications & Networking
1 11 (44.00%) TCP/IP
2 8 (32.00%) Internet
2 8 (32.00%) HTTP
3 5 (20.00%) SSL
4 3 (12.00%) SNMP
4 3 (12.00%) PBX
4 3 (12.00%) VoIP
4 3 (12.00%) RTP
4 3 (12.00%) Q.931
4 3 (12.00%) VLAN
4 3 (12.00%) Ethernet
5 2 (8.00%) Network Security
5 2 (8.00%) IPsec
5 2 (8.00%) SSH
5 2 (8.00%) IGMP
5 2 (8.00%) DHCP
5 2 (8.00%) RTCP
Database & Business Intelligence
1 5 (20.00%) MySQL
1 5 (20.00%) Relational Database
2 4 (16.00%) Big Data
3 2 (8.00%) Data Mining
Development Applications
1 3 (12.00%) Subversion
1 3 (12.00%) GCC
1 3 (12.00%) GDB
1 3 (12.00%) Automake
General
1 5 (20.00%) Advertising
1 5 (20.00%) Marketing
2 3 (12.00%) Electronics
3 2 (8.00%) Telecoms
3 2 (8.00%) Finance
4 1 (4.00%) Banking
Job Titles
1 9 (36.00%) Software Engineer
2 4 (16.00%) Developer
2 4 (16.00%) C++ Developer
3 3 (12.00%) Software Development Manager
3 3 (12.00%) Team Leader
3 3 (12.00%) Development Team Leader
3 3 (12.00%) Hardware Engineer
3 3 (12.00%) Analyst
3 3 (12.00%) Test Analyst
3 3 (12.00%) Development Manager
3 3 (12.00%) Software Development Team Leader
3 3 (12.00%) Software Manager
3 3 (12.00%) Implementation Engineer
3 3 (12.00%) Software Team Leader
4 2 (8.00%) Graduate Hardware Engineer
4 2 (8.00%) Software Engineering Manager
4 2 (8.00%) Graduate
4 2 (8.00%) Administrator
4 2 (8.00%) Engineering Manager
4 2 (8.00%) Design Engineer
Libraries, Frameworks & Software Standards
1 9 (36.00%) HTML
1 9 (36.00%) Pthreads
2 4 (16.00%) STL
2 4 (16.00%) HTML5
3 3 (12.00%) FreeSWITCH
3 3 (12.00%) GTK+
3 3 (12.00%) Qt
4 2 (8.00%) Boost C++ Libraries
4 2 (8.00%) XML
4 2 (8.00%) WebRTC
Miscellaneous
1 6 (24.00%) Algorithms
2 5 (20.00%) Device Driver
3 4 (16.00%) Computer Science
4 3 (12.00%) Data Integration
5 2 (8.00%) Open Source
5 2 (8.00%) Cryptography
5 2 (8.00%) SCADA
5 2 (8.00%) Embedded Systems
5 2 (8.00%) Management Information System
6 1 (4.00%) Data Structures
6 1 (4.00%) Hedge funds
Operating Systems
1 23 (92.00%) Linux
2 15 (60.00%) UNIX
3 7 (28.00%) Windows
4 6 (24.00%) Embedded Linux
5 3 (12.00%) uClinux
6 2 (8.00%) Debian
Processes & Methodologies
1 11 (44.00%) Software Engineering
2 6 (24.00%) Cyber Security
3 5 (20.00%) Mobile Marketing
3 5 (20.00%) E-Commerce
3 5 (20.00%) Configuration Management
4 4 (16.00%) Agile Software Development
4 4 (16.00%) Multithreading
5 3 (12.00%) Web Application Development
5 3 (12.00%) Web Development
6 2 (8.00%) Requirements Analysis
6 2 (8.00%) OOD
6 2 (8.00%) Analytics
6 2 (8.00%) Continuous Improvement
6 2 (8.00%) Information Assurance
6 2 (8.00%) OO
7 1 (4.00%) Low Latency
7 1 (4.00%) Performance Analysis
7 1 (4.00%) Demand Forecasting
7 1 (4.00%) Mentoring
7 1 (4.00%) Coaching
Programming Languages
1 19 (76.00%) C
2 16 (64.00%) C++
3 9 (36.00%) Python
4 7 (28.00%) JavaScript
5 6 (24.00%) Java
6 5 (20.00%) Ruby
7 3 (12.00%) Lua
7 3 (12.00%) Shell Script
8 2 (8.00%) C#
8 2 (8.00%) Perl
9 1 (4.00%) Embedded C
Qualifications
1 11 (44.00%) Degree
2 3 (12.00%) HND
3 2 (8.00%) Security Cleared
4 1 (4.00%) MBA
Quality Assurance & Compliance
1 1 (4.00%) QA
System Software
1 3 (12.00%) Firmware
Vendors
1 3 (12.00%) Microsoft
1 3 (12.00%) Genesys
2 1 (4.00%) Facebook