Unix Job Trends in the City of London

Unix
Central London > City of London

The table below provides summary statistics and salary benchmarking for jobs advertised in the City of London requiring Unix skills. It covers vacancies from the 6 months leading up to 18 September 2025, with comparisons to the same periods in the previous two years.

6 months to
18 Sep 2025
Same period 2024 Same period 2023
Rank 115 149 116
Rank change year-on-year +34 -33 +37
Permanent jobs citing Unix 14 23 73
As % of all permanent jobs advertised in the City of London 0.82% 0.80% 2.15%
As % of the Operating Systems category 6.45% 4.69% 12.41%
Number of salaries quoted 8 11 70
10th Percentile £58,825 £60,000 £55,625
25th Percentile £64,000 £66,250 £62,000
Median annual salary (50th Percentile) £75,000 £92,500 £80,000
Median % change year-on-year -18.92% +15.63% -5.33%
75th Percentile £82,500 £107,500 £112,500
90th Percentile £84,000 £112,500 £130,000
Central London median annual salary £75,000 £91,250 £80,000
% change year-on-year -17.81% +14.06% -5.88%

All Operating Systems
City of London

Unix falls under the Operating Systems category. For comparison with the information above, the following table provides summary statistics for all permanent job vacancies requiring operating system skills in the City of London.

Permanent vacancies with a requirement for operating system skills 217 490 588
As % of all permanent jobs advertised in the City of London 12.67% 16.98% 17.31%
Number of salaries quoted 191 331 520
10th Percentile £35,000 £37,000 £31,250
25th Percentile £40,000 £47,500 £40,000
Median annual salary (50th Percentile) £50,000 £60,000 £62,500
Median % change year-on-year -16.67% -4.00% -3.85%
75th Percentile £77,500 £85,000 £85,000
90th Percentile £90,000 £115,000 £107,500
Central London median annual salary £54,500 £60,000 £60,000
% change year-on-year -9.17% - -

Unix
Job Vacancy Trend in the City of London

Job postings citing Unix as a proportion of all IT jobs advertised in the City of London.

Job vacancy trend for Unix in the City of London

Unix
Salary Trend in the City of London

Salary distribution trend for jobs in the City of London citing Unix.

Salary distribution trend for jobs in the City of London citing Unix

Unix
Salary Histogram in the City of London

Salary distribution for jobs citing Unix in the City of London over the 6 months to 18 September 2025.

Salary histogram for Unix in the City of London

Unix
Co-occurring Skills and Capabilities in the City of London 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 5 (35.71%) Microsoft Exchange
2 1 (7.14%) Apache Spark
Applications
1 1 (7.14%) Microsoft Excel
1 1 (7.14%) Microsoft Office
Cloud Services
1 4 (28.57%) Azure
1 4 (28.57%) Entra ID
1 4 (28.57%) Microsoft 365
1 4 (28.57%) OpenShift
2 2 (14.29%) AWS
3 1 (7.14%) Amazon EKS
3 1 (7.14%) Amazon ELB
3 1 (7.14%) Amazon S3
Communications & Networking
1 4 (28.57%) Firewall
1 4 (28.57%) LAN
1 4 (28.57%) VoIP
1 4 (28.57%) WAN
Database & Business Intelligence
1 3 (21.43%) ClickHouse
2 1 (7.14%) Delta Lake
2 1 (7.14%) DynamoDB
2 1 (7.14%) KDB
2 1 (7.14%) Kdb+
2 1 (7.14%) Metadata
2 1 (7.14%) Relational Database
2 1 (7.14%) Spark SQL
2 1 (7.14%) SQL Server
Development Applications
1 3 (21.43%) Jenkins
2 1 (7.14%) Git
2 1 (7.14%) MLflow
General
1 9 (64.29%) Finance
2 6 (42.86%) Social Skills
3 4 (28.57%) Banking
4 3 (21.43%) Analytical Skills
5 2 (14.29%) Inclusion and Diversity
6 1 (7.14%) Legal
6 1 (7.14%) Organisational Skills
Job Titles
1 4 (28.57%) Senior
2 3 (21.43%) Analyst
3 2 (14.29%) Developer
3 2 (14.29%) Platform Engineer
4 1 (7.14%) Administrator
4 1 (7.14%) Applications Support
4 1 (7.14%) Applications Support Analyst
4 1 (7.14%) Data Analyst
4 1 (7.14%) Data Centre Infrastructure Engineer
4 1 (7.14%) Data Engineer
4 1 (7.14%) Infrastructure Engineer
4 1 (7.14%) KDB Developer
4 1 (7.14%) Machine Learning Engineer
4 1 (7.14%) SQL Analyst
4 1 (7.14%) SQL Support Analyst
4 1 (7.14%) Support Analyst
4 1 (7.14%) Support Specialist
4 1 (7.14%) Systems Administrator
4 1 (7.14%) Unix Administrator
4 1 (7.14%) Unix Systems Administrator
Libraries, Frameworks & Software Standards
1 1 (7.14%) .NET
1 1 (7.14%) FIX Protocol
1 1 (7.14%) Keras
1 1 (7.14%) Lambda Expressions
1 1 (7.14%) Metaflow
1 1 (7.14%) NumPy
1 1 (7.14%) Pandas
1 1 (7.14%) PySpark
1 1 (7.14%) PyTorch
1 1 (7.14%) scikit-learn
1 1 (7.14%) TensorFlow
1 1 (7.14%) YAML
Miscellaneous
1 4 (28.57%) PKI
2 1 (7.14%) Data Centre
2 1 (7.14%) Hybrid Cloud
2 1 (7.14%) Linux Command Line
2 1 (7.14%) Self-Motivation
2 1 (7.14%) Video Conferencing
Operating Systems
1 13 (92.86%) Linux
2 6 (42.86%) Windows
3 1 (7.14%) AIX
3 1 (7.14%) Debian
3 1 (7.14%) Red Hat Enterprise Linux
3 1 (7.14%) Solaris
Processes & Methodologies
1 5 (35.71%) Infrastructure as Code
1 5 (35.71%) ITIL
1 5 (35.71%) Knowledge Transfer
1 5 (35.71%) Problem-Solving
2 4 (28.57%) Application Packaging
2 4 (28.57%) CI/CD
2 4 (28.57%) DevSecOps
2 4 (28.57%) High Availability
2 4 (28.57%) Identity Access Management
2 4 (28.57%) Migration
2 4 (28.57%) Roadmaps
2 4 (28.57%) Service Delivery
2 4 (28.57%) Strategic Planning
2 4 (28.57%) Technology Roadmap
2 4 (28.57%) Technology Strategy
3 3 (21.43%) Data Modelling
3 3 (21.43%) Data Security
3 3 (21.43%) Disaster Recovery
3 3 (21.43%) ETL
3 3 (21.43%) Performance Optimisation
Programming Languages
1 4 (28.57%) PowerShell
1 4 (28.57%) Python
2 3 (21.43%) Bash
2 3 (21.43%) C++
2 3 (21.43%) SQL
3 1 (7.14%) Java
3 1 (7.14%) Shell Script
3 1 (7.14%) T-SQL
System Software
1 4 (28.57%) Active Directory
1 4 (28.57%) Virtual Desktop
1 4 (28.57%) XenApp
1 4 (28.57%) XenDesktop
2 2 (14.29%) Docker
Systems Management
1 4 (28.57%) Ansible
1 4 (28.57%) Microsoft Intune
1 4 (28.57%) SCCM
1 4 (28.57%) Single Sign-On
2 3 (21.43%) Grafana
2 3 (21.43%) Prometheus
3 2 (14.29%) Terraform
4 1 (7.14%) Kubeflow
4 1 (7.14%) Kubernetes
4 1 (7.14%) Podman
4 1 (7.14%) Progress Chef
4 1 (7.14%) Puppet
Vendors
1 6 (42.86%) Microsoft
2 4 (28.57%) Citrix
3 1 (7.14%) Databricks
3 1 (7.14%) Oracle
3 1 (7.14%) Red Hat