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

Location
3 months to
2 Sep 2015
Same period 2014 Same period 2013
Portable Operating System Interface for UNIX (POSIX)
Rank 873 918 879
Rank change year-on-year
+45 -39
Permanent jobs citing POSIX 29 6 10
As % of all permanent IT jobs located in the UK 0.026% 0.005% 0.009%
As % of the Libraries, Frameworks & Software Standards category 0.070% 0.014% 0.023%
Number of salaries quoted 18 2 10
Average salary £61,250 £45,000 £40,000
Average salary % change year-on-year
+36.11% +12.50%
90% offered a salary of more than £48,500 £45,000 £35,000
10% offered a salary of more than £92,500 £45,000 £70,000
UK excluding London average salary £55,000 £45,000 £40,000
% change year-on-year
+22.22% +12.50%

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
41265 44389 42916
As % of all permanent IT jobs located in the UK 37.31% 38.23% 39.83%
Number of salaries quoted 35301 37333 37115
Average salary £45,000 £42,500 £41,500
Average salary % change year-on-year
+5.88% +2.40%
90% offered a salary of more than £30,000 £30,000 £28,500
10% offered a salary of more than £67,500 £62,500 £62,500
UK excluding London average salary £40,000 £40,000 £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 2 September 2015 within the UK.

POSIX Salary Histogram in the UK

POSIX
Top 13 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 2 September 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 +48 28 £67,500 +50.00% 4
London - 19 £82,500 - 3
Cambridgeshire +27 4 £55,000 -
East of England +4 4 £55,000 +22.22% 1
Cambridge - 4 £55,000 -
South East - 3 £52,500 -
Gloucestershire - 2 - -
South West - 2 - -
Buckinghamshire - 2 £51,250 -
Kingston Upon Thames - 2 £55,000 -
Milton Keynes - 2 £51,250 -
Reading - 1 £67,500 -
Berkshire - 1 £67,500 -

POSIX
Top 30 Related IT Skills

For the 6 months to 2 September 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 43 (76.79%) C++
2 40 (71.43%) UNIX
2 40 (71.43%) Linux
3 28 (50.00%) C
4 25 (44.64%) Finance
5 22 (39.29%) Python
6 21 (37.50%) Software Engineering
7 17 (30.36%) Pthreads
7 17 (30.36%) OO
8 16 (28.57%) Windows
8 16 (28.57%) Continuous Integration
8 16 (28.57%) Derivative
9 15 (26.79%) Perl
9 15 (26.79%) Git (software)
10 14 (25.00%) SDLC
11 13 (23.21%) JavaScript
11 13 (23.21%) Security Cleared
12 12 (21.43%) Test Scripting
12 12 (21.43%) JIRA
12 12 (21.43%) Java
12 12 (21.43%) STL
13 11 (19.64%) C#
13 11 (19.64%) Degree
13 11 (19.64%) Subversion
14 10 (17.86%) TDD
14 10 (17.86%) Unit Testing
14 10 (17.86%) Boost C++ Libraries
14 10 (17.86%) PowerShell
14 10 (17.86%) Visual Studio
14 10 (17.86%) FreeBSD

POSIX
Top Related IT Skills by Category

For the 6 months to 2 September 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 2 (3.57%) Confluence
2 1 (1.79%) JBoss
Cloud Services
1 2 (3.57%) Amazon AWS
Communications & Networking
1 4 (7.14%) HTTP
1 4 (7.14%) SSH
2 2 (3.57%) M3UA
2 2 (3.57%) TCP/IP
2 2 (3.57%) CDMA
2 2 (3.57%) SMS
2 2 (3.57%) 3GPP
2 2 (3.57%) 3G
2 2 (3.57%) TCAP
2 2 (3.57%) INAP
2 2 (3.57%) 2G
3 1 (1.79%) Internet
3 1 (1.79%) NGN
Database & Business Intelligence
1 9 (16.07%) MySQL
2 4 (7.14%) PostgreSQL
2 4 (7.14%) Relational Database
3 1 (1.79%) KDB
Development Applications
1 15 (26.79%) Git (software)
2 12 (21.43%) JIRA
3 11 (19.64%) Subversion
4 10 (17.86%) Visual Studio
4 10 (17.86%) Eclipse
5 6 (10.71%) Jenkins
6 2 (3.57%) GNU Toolchain
6 2 (3.57%) CppUnit
7 1 (1.79%) JUnit
7 1 (1.79%) TestNG
7 1 (1.79%) Maven
7 1 (1.79%) Artifactory
7 1 (1.79%) LLVM
General
1 25 (44.64%) Finance
2 8 (14.29%) Financial Institution
3 6 (10.71%) Front Office
4 4 (7.14%) Marketing
5 2 (3.57%) Telecoms
6 1 (1.79%) Banking
Job Titles
1 29 (51.79%) Developer
2 21 (37.50%) C++ Developer
3 13 (23.21%) Software Engineer
4 9 (16.07%) Senior Developer
4 9 (16.07%) Senior C++ Developer
5 6 (10.71%) DevOps Engineer
5 6 (10.71%) Senior DevOps Engineer
6 5 (8.93%) C++ Programmer
6 5 (8.93%) Programmer
7 4 (7.14%) Administrator
7 4 (7.14%) Systems Administrator
8 2 (3.57%) Systems Engineer
8 2 (3.57%) Graduate
8 2 (3.57%) Analyst
8 2 (3.57%) Test Analyst
8 2 (3.57%) Senior Software Engineer
8 2 (3.57%) Linux Systems Engineer
8 2 (3.57%) Graduate Developer
8 2 (3.57%) Linux Engineer
9 1 (1.79%) Java Developer
Libraries, Frameworks & Software Standards
1 17 (30.36%) Pthreads
2 12 (21.43%) STL
3 10 (17.86%) Boost C++ Libraries
4 4 (7.14%) LAMP
4 4 (7.14%) Web Services
5 1 (1.79%) XML
5 1 (1.79%) J2SE
5 1 (1.79%) HTML
5 1 (1.79%) J2EE
5 1 (1.79%) CSS
5 1 (1.79%) JSP
5 1 (1.79%) FIX Protocol
Miscellaneous
1 16 (28.57%) Derivative
2 9 (16.07%) Analytical Skills
3 8 (14.29%) Algorithms
3 8 (14.29%) Computer Science
4 6 (10.71%) Hedge funds
4 6 (10.71%) Foreign Exchange (FX)
5 3 (5.36%) Tandem
6 2 (3.57%) PKI
6 2 (3.57%) Data Centre
6 2 (3.57%) Data Structures
7 1 (1.79%) Client/Server
7 1 (1.79%) Equities
7 1 (1.79%) Statistics
7 1 (1.79%) Mathematics
Operating Systems
1 40 (71.43%) UNIX
1 40 (71.43%) Linux
2 16 (28.57%) Windows
3 10 (17.86%) FreeBSD
3 10 (17.86%) Mac OS X
4 6 (10.71%) Debian
5 1 (1.79%) Ubuntu
5 1 (1.79%) Mac OS
5 1 (1.79%) SUSE
5 1 (1.79%) AIX
5 1 (1.79%) HPUX
5 1 (1.79%) Solaris
Processes & Methodologies
1 21 (37.50%) Software Engineering
2 17 (30.36%) OO
3 16 (28.57%) Continuous Integration
4 14 (25.00%) SDLC
5 12 (21.43%) Test Scripting
6 10 (17.86%) Unit Testing
6 10 (17.86%) TDD
6 10 (17.86%) Mobile Development
7 9 (16.07%) OOP
7 9 (16.07%) Electronic Trading
8 8 (14.29%) OOD
9 6 (10.71%) SOA
9 6 (10.71%) Agile Software Development
9 6 (10.71%) DevOps
9 6 (10.71%) Analytics
10 5 (8.93%) Test Management
10 5 (8.93%) Configuration Management
11 4 (7.14%) Mobile Marketing
11 4 (7.14%) Multithreading
12 3 (5.36%) Scrum
Programming Languages
1 43 (76.79%) C++
2 28 (50.00%) C
3 22 (39.29%) Python
4 15 (26.79%) Perl
5 13 (23.21%) JavaScript
6 12 (21.43%) Java
7 11 (19.64%) C#
8 10 (17.86%) PowerShell
9 6 (10.71%) Bash Shell
10 4 (7.14%) Ruby
10 4 (7.14%) PHP
11 3 (5.36%) SQL
11 3 (5.36%) Shell Script
12 2 (3.57%) Lua
Qualifications
1 13 (23.21%) Security Cleared
2 11 (19.64%) Degree
3 9 (16.07%) DV Cleared
4 7 (12.50%) OCP
4 7 (12.50%) Oracle Certification
5 4 (7.14%) SC Cleared
6 1 (1.79%) BC Cleared
Quality Assurance & Compliance
1 1 (1.79%) SLA
System Software
1 5 (8.93%) VMware Infrastructure
Systems Management
1 6 (10.71%) Puppet
2 3 (5.36%) Opscode Chef
3 2 (3.57%) Ansible
Vendors
1 6 (10.71%) VMware
2 2 (3.57%) Google
2 2 (3.57%) Perforce
2 2 (3.57%) Dialogic
3 1 (1.79%) Atlassian
3 1 (1.79%) Sun
3 1 (1.79%) Red Hat
Hoddesdon, Hertfordshire
X4 Group
Salary: £35k - 45k per year
Posted: 22 hours ago
City, London
Client Server
Salary: £75k to £90k + bonus + benefits
Posted: 2 days ago
London
CLIENT SERVER
Salary: £85k to £100k + bonus + benefits
Posted: 7 days ago