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

Location
3 months to
28 Apr 2015
Same period 2014 Same period 2013
Portable Operating System Interface for UNIX (POSIX)
Rank 885 903 857
Rank change year-on-year
+18 -46
Permanent jobs citing POSIX 29 18 38
As % of all permanent IT jobs located in the UK 0.026% 0.015% 0.034%
As % of the Libraries, Frameworks & Software Standards category 0.069% 0.037% 0.085%
Number of salaries quoted 20 14 21
Average salary £58,750 £38,750 £41,500
Average salary % change year-on-year
+51.61% -6.62%
90% offered a salary of more than £38,564 £21,500 £35,000
10% offered a salary of more than £83,250 £53,500 £50,000
UK excluding London average salary £52,500 £35,000 £41,500
% change year-on-year
+50.00% -15.66%

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
41823 48018 44793
As % of all permanent IT jobs located in the UK 37.68% 40.18% 40.47%
Number of salaries quoted 35586 40557 39007
Average salary £45,000 £42,500 £40,000
Average salary % change year-on-year
+5.88% +6.25%
90% offered a salary of more than £30,000 £30,000 £28,500
10% offered a salary of more than £65,000 £60,000 £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 28 April 2015 within the UK.

POSIX Salary Histogram in the UK

POSIX
Top 14 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 28 April 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 +37 29 £58,750 +51.61% 3
London +44 14 £82,500 -17.50% 2
South East +2 7 £52,500 +10.52%
City of London +40 5 £58,750 -41.25% 1
East of England - 5 £38,564 -
Cambridge - 5 £38,564 -
Cambridgeshire - 5 £38,564 -
Buckinghamshire - 4 - -
Milton Keynes - 4 - -
Bracknell +2 3 £52,500 +5.00%
Berkshire -2 3 £52,500 +5.00%
South West -11 3 £55,000 +100.00% 1
Gloucestershire - 3 £55,000 -
Gloucester - 2 £55,000 -

POSIX
Top 30 Related IT Skills

For the 6 months to 28 April 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 35 (74.47%) UNIX
2 32 (68.09%) C
3 30 (63.83%) C++
3 30 (63.83%) Linux
4 21 (44.68%) Python
5 19 (40.43%) STL
5 19 (40.43%) Pthreads
6 18 (38.30%) Ruby
7 16 (34.04%) Software Engineering
7 16 (34.04%) OO
8 12 (25.53%) MySQL
8 12 (25.53%) Relational Database
9 11 (23.40%) HTML
9 11 (23.40%) Perl
9 11 (23.40%) Degree
10 10 (21.28%) Algorithms
11 9 (19.15%) Derivative
11 9 (19.15%) Data Analysis
11 9 (19.15%) Electronic Trading
11 9 (19.15%) Java
11 9 (19.15%) OOP
11 9 (19.15%) Debian
11 9 (19.15%) Management Information System
11 9 (19.15%) Finance
12 7 (14.89%) HTTP
12 7 (14.89%) TCP/IP
12 7 (14.89%) OOD
12 7 (14.89%) Open Source
12 7 (14.89%) HTML5
12 7 (14.89%) MongoDB

POSIX
Top Related IT Skills by Category

For the 6 months to 28 April 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 6 (12.77%) Apache
2 5 (10.64%) OpenStack
3 2 (4.26%) nginx
3 2 (4.26%) Node.js
Applications
1 2 (4.26%) MS Excel
1 2 (4.26%) MS Visio
1 2 (4.26%) MS PowerPoint
Cloud Services
1 4 (8.51%) PaaS
2 2 (4.26%) Route 53
2 2 (4.26%) IaaS
2 2 (4.26%) Virtual Private Cloud
2 2 (4.26%) Amazon EC2
2 2 (4.26%) Amazon S3
2 2 (4.26%) Amazon AWS
Communications & Networking
1 7 (14.89%) HTTP
1 7 (14.89%) TCP/IP
2 5 (10.64%) SSH
3 4 (8.51%) Internet
4 2 (4.26%) IPsec
4 2 (4.26%) SSL
4 2 (4.26%) Intrusion Detection
4 2 (4.26%) Network Security
4 2 (4.26%) Ethernet
Database & Business Intelligence
1 12 (25.53%) MySQL
1 12 (25.53%) Relational Database
2 7 (14.89%) MongoDB
3 5 (10.64%) Apache Cassandra
3 5 (10.64%) PostgreSQL
3 5 (10.64%) CouchDB
3 5 (10.64%) Neo4j
3 5 (10.64%) MariaDB
4 4 (8.51%) Big Data
4 4 (8.51%) Data Mining
5 2 (4.26%) RDBMS
5 2 (4.26%) SimpleDB
5 2 (4.26%) NoSQL
5 2 (4.26%) Redis
5 2 (4.26%) Couchbase
5 2 (4.26%) Amazon RDS
Development Applications
1 4 (8.51%) GNU Toolchain
General
1 9 (19.15%) Finance
2 7 (14.89%) Marketing
3 6 (12.77%) Advertising
4 5 (10.64%) Games
5 2 (4.26%) Retail
5 2 (4.26%) Telecoms
6 1 (2.13%) Electronics
Job Titles
1 20 (42.55%) Developer
2 15 (31.91%) C++ Developer
3 9 (19.15%) Senior Developer
4 6 (12.77%) Programmer
4 6 (12.77%) Software Developer
4 6 (12.77%) Software Engineer
4 6 (12.77%) C++ Programmer
5 5 (10.64%) Senior Software Developer
5 5 (10.64%) Analyst
5 5 (10.64%) Test Analyst
6 4 (8.51%) Systems Engineer
6 4 (8.51%) Development Manager
6 4 (8.51%) Linux Systems Engineer
6 4 (8.51%) Senior C++ Developer
6 4 (8.51%) Linux Engineer
7 3 (6.38%) Administrator
8 2 (4.26%) Software Development Manager
8 2 (4.26%) Team Leader
8 2 (4.26%) Development Team Leader
8 2 (4.26%) Senior Manager
Libraries, Frameworks & Software Standards
1 19 (40.43%) STL
1 19 (40.43%) Pthreads
2 11 (23.40%) HTML
3 7 (14.89%) HTML5
4 5 (10.64%) REST
4 5 (10.64%) Web Services
5 4 (8.51%) Boost C++ Libraries
6 2 (4.26%) Apache Axis
6 2 (4.26%) Apache Flex
6 2 (4.26%) J2EE
6 2 (4.26%) CSS
6 2 (4.26%) SOAP
6 2 (4.26%) XML
6 2 (4.26%) XSL
6 2 (4.26%) Flash
6 2 (4.26%) XHTML
6 2 (4.26%) WSDL
7 1 (2.13%) LAMP
Miscellaneous
1 10 (21.28%) Algorithms
2 9 (19.15%) Management Information System
2 9 (19.15%) Derivative
3 7 (14.89%) Open Source
4 6 (12.77%) Computer Science
5 5 (10.64%) Analytical Skills
5 5 (10.64%) Statistics
5 5 (10.64%) Informatics
5 5 (10.64%) Mathematics
5 5 (10.64%) Physics
5 5 (10.64%) Artificial Intelligence
6 4 (8.51%) Client/Server
7 3 (6.38%) Hedge funds
8 2 (4.26%) User Experience
8 2 (4.26%) Data Integration
8 2 (4.26%) Device Driver
8 2 (4.26%) Cryptography
8 2 (4.26%) SCADA
9 1 (2.13%) Data Structures
Operating Systems
1 35 (74.47%) UNIX
2 30 (63.83%) Linux
3 9 (19.15%) Debian
4 4 (8.51%) Windows
5 2 (4.26%) Embedded Linux
Processes & Methodologies
1 16 (34.04%) OO
1 16 (34.04%) Software Engineering
2 9 (19.15%) Electronic Trading
2 9 (19.15%) Data Analysis
2 9 (19.15%) OOP
3 7 (14.89%) Mobile Marketing
3 7 (14.89%) Cyber Security
3 7 (14.89%) OOD
4 6 (12.77%) Configuration Management
4 6 (12.77%) E-Commerce
4 6 (12.77%) Agile Software Development
4 6 (12.77%) Multithreading
4 6 (12.77%) Analytics
5 5 (10.64%) Hidden Markov Model
5 5 (10.64%) Game Theory
5 5 (10.64%) Gibbs Sampling
5 5 (10.64%) Memory Management
5 5 (10.64%) Bioinformatics
5 5 (10.64%) Extreme Programming
6 3 (6.38%) Test Scripting
Programming Languages
1 32 (68.09%) C
2 30 (63.83%) C++
3 21 (44.68%) Python
4 18 (38.30%) Ruby
5 11 (23.40%) Perl
6 9 (19.15%) Java
7 6 (12.77%) JavaScript
8 5 (10.64%) PHP
8 5 (10.64%) Lua
8 5 (10.64%) Haskell
8 5 (10.64%) R
8 5 (10.64%) Go
9 4 (8.51%) Bash Shell
10 2 (4.26%) Shell Script
Qualifications
1 11 (23.40%) Degree
2 5 (10.64%) Security Cleared
3 3 (6.38%) SC Cleared
4 1 (2.13%) HND
4 1 (2.13%) MBA
System Software
1 5 (10.64%) Xen
1 5 (10.64%) KVM
1 5 (10.64%) Docker
1 5 (10.64%) LXC
1 5 (10.64%) Slurm Workload Manager
2 1 (2.13%) Firmware
Systems Management
1 5 (10.64%) Mesos
2 2 (4.26%) Puppet
2 2 (4.26%) Opscode Chef
2 2 (4.26%) HAProxy
Vendors
1 5 (10.64%) Pegasus
2 3 (6.38%) Facebook
3 2 (4.26%) Oracle
3 2 (4.26%) Microsoft
4 1 (2.13%) Genesys
City, London
Client Server
Salary: £75k to £90k + bonus + benefits
Posted: 7 hours ago
London
CLIENT SERVER
Salary: £75k to £90k + bonus + benefits
Posted: 8 hours ago
South West
ANSON MCCADE
Salary: Up to £55,000
Posted: 9 hours ago