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

Location
3 months to
2 Jun 2015
Same period 2014 Same period 2013
Portable Operating System Interface for UNIX (POSIX)
Rank 862 913 846
Rank change year-on-year
+51 -67
Permanent jobs citing POSIX 27 20 39
As % of all permanent IT jobs located in the UK 0.025% 0.017% 0.037%
As % of the Libraries, Frameworks & Software Standards category 0.067% 0.043% 0.090%
Number of salaries quoted 22 14 17
Average salary £72,500 £33,250 £40,000
Average salary % change year-on-year
+118.04% -16.87%
90% offered a salary of more than £25,500 £21,500 £35,000
10% offered a salary of more than £82,500 £54,250 £50,000
UK excluding London average salary £55,000 £31,500 £40,000
% change year-on-year
+74.60% -21.25%

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
40191 46930 43105
As % of all permanent IT jobs located in the UK 37.80% 39.95% 40.43%
Number of salaries quoted 34376 40132 37445
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 £28,000
10% offered a salary of more than £65,000 £60,000 £65,000
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 June 2015 within the UK.

POSIX Salary Histogram in the UK

POSIX
Top 18 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 June 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 +49 27 £72,500 +118.04% 5
London +57 17 £82,500 -17.50% 3
East of England +8 4 £42,500 +34.92% 2
South East +6 3 £52,500 +10.52%
Bracknell +15 2 £52,500 -
Cambridge +15 2 - - 2
Cambridgeshire +10 2 - - 2
Berkshire -1 2 £52,500 +5.00%
South West -15 2 £55,000 +100.00%
Gloucestershire - 2 £55,000 -
Hertfordshire - 2 £42,500 -
Watford - 2 £42,500 -
City of London +59 1 - - 1
West Midlands - 1 £62,500 -
Birmingham - 1 £62,500 -
Buckinghamshire - 1 - -
Gloucester - 1 £55,000 -
Milton Keynes - 1 - -

POSIX
Top 30 Related IT Skills

For the 6 months to 2 June 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 42 (79.25%) UNIX
2 37 (69.81%) C++
3 36 (67.92%) C
4 33 (62.26%) Linux
5 23 (43.40%) Finance
6 21 (39.62%) Pthreads
7 20 (37.74%) OO
8 19 (35.85%) Python
8 19 (35.85%) STL
9 15 (28.30%) Software Engineering
9 15 (28.30%) Ruby
9 15 (28.30%) Degree
10 14 (26.42%) Derivative
10 14 (26.42%) SDLC
11 12 (22.64%) Computer Science
11 12 (22.64%) Electronic Trading
11 12 (22.64%) Perl
11 12 (22.64%) OOP
12 11 (20.75%) MySQL
12 11 (20.75%) Algorithms
12 11 (20.75%) Relational Database
13 9 (16.98%) Data Analysis
14 8 (15.09%) HTML
14 8 (15.09%) OOD
14 8 (15.09%) Management Information System
14 8 (15.09%) Debian
15 7 (13.21%) Java
15 7 (13.21%) MongoDB
15 7 (13.21%) Analytical Skills
16 6 (11.32%) Mobile Marketing

POSIX
Top Related IT Skills by Category

For the 6 months to 2 June 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 5 (9.43%) OpenStack
2 4 (7.55%) Apache
3 2 (3.77%) nginx
3 2 (3.77%) Node.js
Cloud Services
1 2 (3.77%) IaaS
1 2 (3.77%) Virtual Private Cloud
1 2 (3.77%) Amazon EC2
1 2 (3.77%) Amazon S3
1 2 (3.77%) Amazon AWS
1 2 (3.77%) PaaS
1 2 (3.77%) Route 53
Communications & Networking
1 6 (11.32%) HTTP
2 4 (7.55%) SSH
3 3 (5.66%) TCP/IP
4 2 (3.77%) Intrusion Detection
4 2 (3.77%) Internet
5 1 (1.89%) IPsec
5 1 (1.89%) Network Security
Database & Business Intelligence
1 11 (20.75%) MySQL
1 11 (20.75%) Relational Database
2 7 (13.21%) MongoDB
3 5 (9.43%) PostgreSQL
3 5 (9.43%) CouchDB
3 5 (9.43%) Apache Cassandra
3 5 (9.43%) Neo4j
3 5 (9.43%) MariaDB
4 2 (3.77%) Couchbase
4 2 (3.77%) Redis
4 2 (3.77%) Amazon RDS
4 2 (3.77%) SimpleDB
4 2 (3.77%) NoSQL
4 2 (3.77%) Big Data
4 2 (3.77%) RDBMS
4 2 (3.77%) Data Mining
Development Applications
1 4 (7.55%) GNU Toolchain
2 2 (3.77%) Jenkins
2 2 (3.77%) Git (software)
General
1 23 (43.40%) Finance
2 6 (11.32%) Marketing
3 5 (9.43%) Games
4 4 (7.55%) Advertising
4 4 (7.55%) Financial Institution
5 2 (3.77%) Retail
5 2 (3.77%) Front Office
5 2 (3.77%) Telecoms
6 1 (1.89%) Electronics
Job Titles
1 32 (60.38%) Developer
2 20 (37.74%) C++ Developer
3 12 (22.64%) Senior Developer
4 7 (13.21%) Senior C++ Developer
5 6 (11.32%) C++ Programmer
5 6 (11.32%) Programmer
6 5 (9.43%) Software Developer
6 5 (9.43%) Senior Software Developer
7 4 (7.55%) Linux Systems Engineer
7 4 (7.55%) Linux Engineer
7 4 (7.55%) Systems Engineer
8 3 (5.66%) Software Engineer
8 3 (5.66%) Analyst
8 3 (5.66%) Test Analyst
9 2 (3.77%) Senior DevOps Engineer
9 2 (3.77%) DevOps Engineer
9 2 (3.77%) Real Time Engineer
9 2 (3.77%) Graduate Developer
9 2 (3.77%) Senior Development Manager
9 2 (3.77%) Graduate
Libraries, Frameworks & Software Standards
1 21 (39.62%) Pthreads
2 19 (35.85%) STL
3 8 (15.09%) HTML
4 6 (11.32%) HTML5
4 6 (11.32%) Boost C++ Libraries
4 6 (11.32%) Web Services
5 5 (9.43%) REST
6 2 (3.77%) Apache Axis
6 2 (3.77%) Apache Flex
6 2 (3.77%) WSDL
6 2 (3.77%) XHTML
6 2 (3.77%) Flash
6 2 (3.77%) CSS
6 2 (3.77%) SOAP
6 2 (3.77%) J2EE
6 2 (3.77%) XML
6 2 (3.77%) XSL
6 2 (3.77%) LAMP
Miscellaneous
1 14 (26.42%) Derivative
2 12 (22.64%) Computer Science
3 11 (20.75%) Algorithms
4 8 (15.09%) Management Information System
5 7 (13.21%) Analytical Skills
6 5 (9.43%) Statistics
6 5 (9.43%) Informatics
6 5 (9.43%) Mathematics
6 5 (9.43%) Physics
6 5 (9.43%) Artificial Intelligence
7 4 (7.55%) Hedge funds
7 4 (7.55%) Client/Server
8 2 (3.77%) Data Structures
8 2 (3.77%) User Experience
8 2 (3.77%) Data Centre
8 2 (3.77%) PKI
8 2 (3.77%) Foreign Exchange (FX)
9 1 (1.89%) Tandem
9 1 (1.89%) Cryptography
9 1 (1.89%) SCADA
Operating Systems
1 42 (79.25%) UNIX
2 33 (62.26%) Linux
3 8 (15.09%) Debian
4 5 (9.43%) Windows
Processes & Methodologies
1 20 (37.74%) OO
2 15 (28.30%) Software Engineering
3 14 (26.42%) SDLC
4 12 (22.64%) Electronic Trading
4 12 (22.64%) OOP
5 9 (16.98%) Data Analysis
6 8 (15.09%) OOD
7 6 (11.32%) Mobile Marketing
7 6 (11.32%) Analytics
7 6 (11.32%) Open Source
8 5 (9.43%) Configuration Management
8 5 (9.43%) Extreme Programming
8 5 (9.43%) Agile Software Development
8 5 (9.43%) Bioinformatics
8 5 (9.43%) Multithreading
8 5 (9.43%) Memory Management
8 5 (9.43%) Hidden Markov Model
8 5 (9.43%) Game Theory
8 5 (9.43%) Gibbs Sampling
9 4 (7.55%) Patch Management
Programming Languages
1 37 (69.81%) C++
2 36 (67.92%) C
3 19 (35.85%) Python
4 15 (28.30%) Ruby
5 12 (22.64%) Perl
6 7 (13.21%) Java
7 6 (11.32%) Bash Shell
7 6 (11.32%) PHP
8 5 (9.43%) JavaScript
8 5 (9.43%) Haskell
8 5 (9.43%) R
8 5 (9.43%) Go
9 3 (5.66%) Lua
10 2 (3.77%) Shell Script
Qualifications
1 15 (28.30%) Degree
2 4 (7.55%) Security Cleared
3 3 (5.66%) SC Cleared
4 1 (1.89%) HND
System Software
1 5 (9.43%) Xen
1 5 (9.43%) KVM
1 5 (9.43%) Docker
1 5 (9.43%) LXC
1 5 (9.43%) Slurm Workload Manager
2 2 (3.77%) VMware Infrastructure
3 1 (1.89%) Firmware
Systems Management
1 5 (9.43%) Mesos
2 4 (7.55%) Puppet
3 2 (3.77%) Opscode Chef
3 2 (3.77%) HAProxy
Vendors
1 5 (9.43%) Pegasus
2 2 (3.77%) Facebook
2 2 (3.77%) Oracle
2 2 (3.77%) VMware
2 2 (3.77%) Perforce
3 1 (1.89%) Genesys
City, London
Client Server
Salary: £75k to £90k + bonus + benefits
Posted: Yesterday
London
CLIENT SERVER
Salary: £75k to £90k + bonus + benefits
Posted: Yesterday
Cambridge, Cambridgeshire
Thales
Posted: Yesterday
Cambridge, Cambridgeshire
Connectus
Salary: £50000 - £60000 per annum + benefits
Posted: 3 days ago
London
CLIENT SERVER
Salary: £75k to £90k + bonus + benefits
Posted: 14 days ago