Portable Operating System Interface (POSIX)
UK

The following table provides summary statistics for contract job vacancies with a requirement for POSIX skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited POSIX over the 6 months to 19 April 2024 with a comparison to the same period in the previous 2 years.

6 months to
19 Apr 2024
Same period 2023 Same period 2022
Rank 578 681 838
Rank change year-on-year +103 +157 -169
Contract jobs citing POSIX 8 35 17
As % of all contract jobs advertised in the UK 0.018% 0.058% 0.019%
As % of the Libraries, Frameworks & Software Standards category 0.090% 0.25% 0.069%
Number of daily rates quoted 4 14 14
10th Percentile - £456 £463
25th Percentile £609 £526 £472
Median daily rate (50th Percentile) £655 £592 £505
Median % change year-on-year +10.68% +17.23% +119.57%
75th Percentile £722 £744 £575
90th Percentile - £775 £596
UK excluding London median daily rate £655 £554 -
% change year-on-year +18.33% - -

All Software Libraries and Frameworks
UK

POSIX is in the Software Libraries and Frameworks category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies with a requirement for technical specification, industry standards, software libraries and framework skills.

Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 8,931 14,159 24,504
As % of all contract IT jobs advertised in the UK 20.46% 23.34% 27.27%
Number of daily rates quoted 6,208 10,343 18,013
10th Percentile £337 £400 £400
25th Percentile £425 £463 £463
Median daily rate (50th Percentile) £528 £550 £550
Median % change year-on-year -4.00% - +10.00%
75th Percentile £650 £675 £653
90th Percentile £768 £775 £750
UK excluding London median daily rate £500 £500 £500
% change year-on-year - - +16.82%
Number of hourly rates quoted 203 150 252
10th Percentile £20.77 £29.58 £21.10
25th Percentile £37.35 £45.31 £35.00
Median hourly rate £46.18 £65.00 £49.00
Median % change year-on-year -28.95% +32.65% +8.89%
75th Percentile £65.00 £75.00 £65.00
90th Percentile £75.00 £81.00 £75.00
UK excluding London median hourly rate £47.50 £62.50 £49.00
% change year-on-year -24.00% +27.55% +8.89%

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
Contractor Daily Rate Trend

3-month moving average daily rate quoted in jobs citing POSIX.

Daily rate trend for POSIX in the UK

POSIX
Contractor Hourly Rate Trend

3-month moving average hourly rates quoted in jobs citing POSIX.

Hourly rate trend for POSIX in the UK

POSIX
Top 2 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing POSIX within the UK over the 6 months to 19 April 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Jobs
UK excluding London +49 8 £655 +18.33% 2
Scotland +23 8 £655 +14.75%

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 8 (100.00%) SAS
Cloud Services
1 5 (62.50%) AWS
1 5 (62.50%) Azure
1 5 (62.50%) OpenShift
Communications & Networking
1 8 (100.00%) Fibre Channel
1 8 (100.00%) iSCSI
2 5 (62.50%) SAN
Database & Business Intelligence
1 5 (62.50%) DB2
General
1 6 (75.00%) Social Skills
2 5 (62.50%) Banking
3 3 (37.50%) Finance
3 3 (37.50%) Investment Banking
4 1 (12.50%) Organisational Skills
Job Titles
1 5 (62.50%) Storage Engineer
2 4 (50.00%) Infrastructure Engineer
2 4 (50.00%) Linux Engineer
2 4 (50.00%) Linux Infrastructure Engineer
2 4 (50.00%) Python Engineer
3 2 (25.00%) DevOps Engineer
4 1 (12.50%) Developer
4 1 (12.50%) Java Developer
4 1 (12.50%) Java Software Developer
4 1 (12.50%) Python Developer
4 1 (12.50%) Senior
4 1 (12.50%) Senior DevOps
4 1 (12.50%) Senior DevOps Engineer
4 1 (12.50%) Senior Storage Engineer
4 1 (12.50%) Software Developer
Libraries, Frameworks & Software Standards
1 8 (100.00%) Flash
Miscellaneous
1 5 (62.50%) Client/Server
1 5 (62.50%) NVMe
2 1 (12.50%) Data Protection Act
2 1 (12.50%) Management Information System
Operating Systems
1 8 (100.00%) Linux
2 7 (87.50%) Red Hat Enterprise Linux
2 7 (87.50%) Unix
2 7 (87.50%) Windows
2 7 (87.50%) Windows Server
3 4 (50.00%) Data ONTAP
Processes & Methodologies
1 8 (100.00%) SDLC
2 6 (75.00%) Capacity Management
2 6 (75.00%) Computer Science
2 6 (75.00%) High Availability
2 6 (75.00%) Preventative Maintenance
2 6 (75.00%) Problem Management
2 6 (75.00%) Storage Management
3 5 (62.50%) Infrastructure Automation
3 5 (62.50%) Observability
3 5 (62.50%) OO
3 5 (62.50%) Storage Virtualisation
4 4 (50.00%) Customer Requirements
4 4 (50.00%) DevOps
5 3 (37.50%) Investment Management
5 3 (37.50%) Wealth Management
6 1 (12.50%) Data Protection
Programming Languages
1 8 (100.00%) Java
1 8 (100.00%) Python
2 7 (87.50%) SQL
3 6 (75.00%) Perl
System Software
1 8 (100.00%) NFS
2 5 (62.50%) Docker
3 4 (50.00%) GPFS
Systems Management
1 5 (62.50%) Kubernetes
1 5 (62.50%) Veritas Storage Foundation
Vendors
1 5 (62.50%) Brocade
1 5 (62.50%) EMC
1 5 (62.50%) Google
1 5 (62.50%) IBM
1 5 (62.50%) NetApp
1 5 (62.50%) Sybase
1 5 (62.50%) Veritas