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 30 January 2015 with a comparison to the same period in the previous 2 years.

Location
3 months to
30 Jan 2015
Same period 2014 Same period 2013
Portable Operating System Interface for UNIX (POSIX)
Rank 862 850 822
Rank change year-on-year
-12 -28
Permanent jobs citing POSIX 16 43 63
As % of all permanent IT jobs located in the UK 0.015% 0.042% 0.058%
As % of the Libraries, Frameworks & Software Standards category 0.041% 0.10% 0.14%
Number of salaries quoted 15 27 62
Average salary £47,500 £40,500 £42,500
Average salary % change year-on-year
+17.28% -4.70%
90% offered a salary of more than £32,500 £30,000 £37,500
10% offered a salary of more than £81,250 £72,000 £62,000
UK excluding London average salary £47,500 £40,500 £50,000
% change year-on-year
+17.28% -19.00%

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
39276 42093 45889
As % of all permanent IT jobs located in the UK 37.09% 41.03% 41.94%
Number of salaries quoted 33876 35161 40804
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 £30,000 £28,000
10% offered a salary of more than £65,000 £60,000 £62,500
UK excluding London average salary £40,000 £38,000 £37,500
% change year-on-year
+5.26% +1.33%

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 30 January 2015 within the UK.

POSIX Salary Histogram in the UK

POSIX
Top 19 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 30 January 2015. 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 -32 12 £52,500 +24.26% 9
London +4 6 £80,000 +125.35% 2
South East -38 4 £47,500 -1.04% 2
South Wales - 4 £45,000 -
Torfaen - 4 £45,000 -
Wales - 4 £45,000 -
Cwmbran - 4 £45,000 -
Berkshire -18 2 £52,500 +16.66% 2
Bracknell -19 2 £52,500 +16.66% 2
South West -31 2 £60,000 +71.42% 3
Surrey -7 1 £42,500 -43.33%
Wiltshire - 1 £60,000 - 1
Farnborough - 1 £40,000 -
Chippenham - 1 £60,000 -
Guildford - 1 £42,500 -
Devon - 1 £29,000 -
Hampshire - 1 £40,000 -
Paignton - 1 £29,000 -
Swindon - 1 £60,000 -

POSIX
Top 30 Related IT Skills

For the 6 months to 30 January 2015, 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 25 (86.21%) Linux
2 21 (72.41%) UNIX
2 21 (72.41%) C
3 20 (68.97%) C++
4 15 (51.72%) Software Engineering
5 13 (44.83%) Pthreads
6 11 (37.93%) Degree
6 11 (37.93%) Python
7 9 (31.03%) TCP/IP
8 8 (27.59%) Algorithms
9 7 (24.14%) Mobile Marketing
9 7 (24.14%) Marketing
9 7 (24.14%) Ruby
9 7 (24.14%) Advertising
9 7 (24.14%) E-Commerce
9 7 (24.14%) HTML
9 7 (24.14%) JavaScript
9 7 (24.14%) Apache
10 6 (20.69%) STL
10 6 (20.69%) Java
10 6 (20.69%) HTTP
10 6 (20.69%) Internet
10 6 (20.69%) PaaS
10 6 (20.69%) Cyber Security
10 6 (20.69%) Big Data
11 5 (17.24%) Relational Database
11 5 (17.24%) Configuration Management
11 5 (17.24%) SSL
11 5 (17.24%) Windows
11 5 (17.24%) MySQL

POSIX
Top Related IT Skills by Category

For the 6 months to 30 January 2015, 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 7 (24.14%) Apache
Applications
1 3 (10.34%) MS PowerPoint
1 3 (10.34%) MS Visio
1 3 (10.34%) MS Excel
Cloud Services
1 6 (20.69%) PaaS
Communications & Networking
1 9 (31.03%) TCP/IP
2 6 (20.69%) HTTP
2 6 (20.69%) Internet
3 5 (17.24%) SSL
4 3 (10.34%) Ethernet
5 2 (6.90%) IPsec
5 2 (6.90%) SSH
5 2 (6.90%) Network Security
6 1 (3.45%) VLAN
6 1 (3.45%) RTP
6 1 (3.45%) Q.931
6 1 (3.45%) PBX
6 1 (3.45%) VoIP
6 1 (3.45%) SNMP
Database & Business Intelligence
1 6 (20.69%) Big Data
2 5 (17.24%) Relational Database
2 5 (17.24%) MySQL
3 4 (13.79%) Data Mining
Development Applications
1 3 (10.34%) Automake
1 3 (10.34%) GCC
1 3 (10.34%) GDB
1 3 (10.34%) Subversion
2 2 (6.90%) GNU Toolchain
General
1 7 (24.14%) Marketing
1 7 (24.14%) Advertising
2 3 (10.34%) Electronics
3 2 (6.90%) Finance
4 1 (3.45%) Banking
Job Titles
1 9 (31.03%) Software Engineer
2 6 (20.69%) Developer
2 6 (20.69%) C++ Developer
3 3 (10.34%) Software Manager
3 3 (10.34%) Software Development Team Leader
3 3 (10.34%) Implementation Engineer
3 3 (10.34%) Software Team Leader
3 3 (10.34%) Software Development Manager
3 3 (10.34%) Team Leader
3 3 (10.34%) Development Team Leader
3 3 (10.34%) Hardware Engineer
3 3 (10.34%) Analyst
3 3 (10.34%) Test Analyst
3 3 (10.34%) Development Manager
4 2 (6.90%) Graduate
4 2 (6.90%) Administrator
4 2 (6.90%) Engineering Manager
4 2 (6.90%) Systems Engineer
4 2 (6.90%) Graduate Hardware Engineer
4 2 (6.90%) Software Engineering Manager
Libraries, Frameworks & Software Standards
1 13 (44.83%) Pthreads
2 7 (24.14%) HTML
3 6 (20.69%) STL
4 2 (6.90%) Boost C++ Libraries
4 2 (6.90%) HTML5
5 1 (3.45%) GTK+
5 1 (3.45%) Qt
5 1 (3.45%) FreeSWITCH
Miscellaneous
1 8 (27.59%) Algorithms
2 4 (13.79%) Computer Science
3 3 (10.34%) Data Integration
3 3 (10.34%) Device Driver
4 2 (6.90%) Management Information System
4 2 (6.90%) Cryptography
4 2 (6.90%) Open Source
4 2 (6.90%) Embedded Systems
4 2 (6.90%) Derivative
4 2 (6.90%) SCADA
5 1 (3.45%) Data Structures
5 1 (3.45%) Hedge funds
Operating Systems
1 25 (86.21%) Linux
2 21 (72.41%) UNIX
3 5 (17.24%) Windows
4 4 (13.79%) Embedded Linux
4 4 (13.79%) Debian
5 1 (3.45%) uClinux
Processes & Methodologies
1 15 (51.72%) Software Engineering
2 7 (24.14%) Mobile Marketing
2 7 (24.14%) E-Commerce
3 6 (20.69%) Cyber Security
4 5 (17.24%) Configuration Management
5 4 (13.79%) OO
5 4 (13.79%) Agile Software Development
5 4 (13.79%) Multithreading
6 3 (10.34%) Web Development
6 3 (10.34%) Web Application Development
7 2 (6.90%) OOP
7 2 (6.90%) OOD
7 2 (6.90%) Analytics
7 2 (6.90%) Continuous Improvement
7 2 (6.90%) Information Assurance
7 2 (6.90%) Electronic Trading
7 2 (6.90%) Requirements Analysis
8 1 (3.45%) Time Management
8 1 (3.45%) Test Scripting
8 1 (3.45%) Capacity Planning
Programming Languages
1 21 (72.41%) C
2 20 (68.97%) C++
3 11 (37.93%) Python
4 7 (24.14%) Ruby
4 7 (24.14%) JavaScript
5 6 (20.69%) Java
6 4 (13.79%) Perl
7 3 (10.34%) Lua
7 3 (10.34%) Shell Script
8 2 (6.90%) C#
8 2 (6.90%) Bash Shell
9 1 (3.45%) Embedded C
Qualifications
1 11 (37.93%) Degree
2 3 (10.34%) HND
3 2 (6.90%) Security Cleared
4 1 (3.45%) MBA
Quality Assurance & Compliance
1 1 (3.45%) QA
System Software
1 3 (10.34%) Firmware
Vendors
1 3 (10.34%) Microsoft
1 3 (10.34%) Genesys
2 1 (3.45%) Facebook
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