Portable Operating System Interface (POSIX)
UK

The table below provides summary statistics for permanent job vacancies requiring POSIX skills. It includes a benchmarking guide to the annual salaries offered in vacancies that cited POSIX over the 6 months leading up to 26 July 2024, comparing them to the same period in the previous two years.

6 months to
26 Jul 2024
Same period 2023 Same period 2022
Rank 839 883 1248
Rank change year-on-year +44 +365 -256
Permanent jobs citing POSIX 3 4 27
As % of all permanent jobs advertised in the UK 0.003% 0.005% 0.015%
As % of the Libraries, Frameworks & Software Standards category 0.017% 0.018% 0.039%
Number of salaries quoted 2 4 4
10th Percentile - - £55,750
25th Percentile - £39,250 £90,625
Median annual salary (50th Percentile) £50,000 £43,500 £110,000
Median % change year-on-year +14.94% -60.45% +83.33%
75th Percentile - £47,750 £115,000
90th Percentile - - £124,000
UK excluding London median annual salary £50,000 £43,500 £35,000
% change year-on-year +14.94% +24.29% -36.36%

All Software Libraries and Frameworks
UK

POSIX falls under the Software Libraries and Frameworks category. For comparison with the information above, the following table provides summary statistics for all permanent job vacancies requiring technical specification, industry standards, software libraries and framework skills.

Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 17,601 22,313 69,061
As % of all permanent jobs advertised in the UK 19.48% 27.65% 39.40%
Number of salaries quoted 12,656 16,103 29,822
10th Percentile £36,750 £41,250 £38,000
25th Percentile £46,250 £51,250 £47,500
Median annual salary (50th Percentile) £60,000 £67,500 £65,000
Median % change year-on-year -11.11% +3.85% +13.04%
75th Percentile £80,000 £85,875 £83,000
90th Percentile £105,000 £106,289 £100,000
UK excluding London median annual salary £55,000 £57,500 £55,000
% change year-on-year -4.35% +4.55% +10.00%

POSIX
Job Vacancy Trend

Job postings citing POSIX as a proportion of all IT jobs advertised.

Job vacancy trend for POSIX in the UK

POSIX
Salary Trend

3-month moving average salary quoted in jobs citing POSIX.

Salary trend for POSIX in the UK

POSIX
Top 5 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing POSIX within the UK over the 6 months to 26 July 2024. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Jobs
England +34 3 £50,000 +14.94% 3
West Midlands -4 3 £50,000 +14.94%
Midlands -21 3 £50,000 +14.94%
UK excluding London -30 3 £50,000 +14.94% 3
Work from Home - 1 - - 2

POSIX
Co-occurring Skills and Capabilities by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 2 (66.67%) nginx
Communications & Networking
1 2 (66.67%) Firewall
2 1 (33.33%) Ethernet
Database & Business Intelligence
1 2 (66.67%) MySQL
1 2 (66.67%) PostgreSQL
Development Applications
1 2 (66.67%) Git
1 2 (66.67%) GNU Toolchain
1 2 (66.67%) Subversion
General
1 1 (33.33%) Automotive
Job Titles
1 2 (66.67%) Developer
1 2 (66.67%) Linux Developer
2 1 (33.33%) Lead
Libraries, Frameworks & Software Standards
1 2 (66.67%) Node.js
Miscellaneous
1 2 (66.67%) Embedded Systems
1 2 (66.67%) Linux Command Line
2 1 (33.33%) Virtual Team
Operating Systems
1 2 (66.67%) Linux
1 2 (66.67%) Unix
Processes & Methodologies
1 2 (66.67%) Open Source
2 1 (33.33%) Agile
2 1 (33.33%) Network Design
2 1 (33.33%) Validation
Programming Languages
1 2 (66.67%) Bash
1 2 (66.67%) C
1 2 (66.67%) C++
Quality Assurance & Compliance
1 1 (33.33%) AUTOSAR