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 permanent job vacancies from the 6 months leading up to 14 November 2025, with comparisons to the same periods in the previous two years.

6 months to
14 Nov 2025
Same period 2024 Same period 2023
Rank 108 134 121
Rank change year-on-year +26 -13 +36
Permanent jobs citing Unix 19 32 58
As % of all permanent jobs in the City of London 1.13% 1.14% 1.93%
As % of the Operating Systems category 10.27% 6.27% 11.09%
Number of salaries quoted 11 12 56
10th Percentile £53,750 £48,000 £51,250
25th Percentile £66,250 £58,125 £60,200
Median annual salary (50th Percentile) £80,000 £91,250 £75,000
Median % change year-on-year -12.33% +21.67% -9.09%
75th Percentile £86,250 £107,500 £96,875
90th Percentile £90,000 £112,000 £122,500
Central London median annual salary £80,000 £91,250 £75,000
% change year-on-year -12.33% +21.67% -9.91%

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 185 510 523
As % of all permanent jobs advertised in the City of London 11.00% 18.24% 17.39%
Number of salaries quoted 155 339 466
10th Percentile £33,300 £37,400 £32,250
25th Percentile £40,000 £47,500 £41,250
Median annual salary (50th Percentile) £55,000 £60,000 £60,000
Median % change year-on-year -8.33% - -7.69%
75th Percentile £82,500 £85,000 £79,500
90th Percentile £95,000 £115,750 £95,000
Central London median annual salary £55,750 £60,000 £60,000
% change year-on-year -7.08% - -

Unix
Job Vacancy Trend in the City of London

Historical trend showing the proportion of permanent IT job postings citing Unix relative to all permanent IT jobs advertised in the City of London.

Unix job vacancy trend 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 14 November 2025.

Salary histogram for Unix in the City of London

Unix
Co-Occurring Skills & Capabilities in the City of London by Category

The following tables expand on the one above by listing co-occurrences grouped by category. They cover the same employment type, locality and period, with up to 20 co-occurrences shown in each category:

Application Platforms
1 7 (36.84%) Microsoft Exchange
2 2 (10.53%) Apache Spark
2 2 (10.53%) Confluence
3 1 (5.26%) IIS
3 1 (5.26%) Oracle SOA Suite
3 1 (5.26%) SharePoint
Applications
1 2 (10.53%) Microsoft Excel
1 2 (10.53%) Microsoft Office
Business Applications
1 1 (5.26%) Oracle BPM
Cloud Services
1 8 (42.11%) Azure
2 6 (31.58%) AWS
2 6 (31.58%) OpenShift
3 5 (26.32%) Entra ID
3 5 (26.32%) Microsoft 365
4 3 (15.79%) GCP
5 1 (5.26%) Amazon CloudWatch
5 1 (5.26%) Amazon EKS
5 1 (5.26%) Amazon ELB
5 1 (5.26%) Amazon S3
5 1 (5.26%) AWS CloudFormation
5 1 (5.26%) Datadog
5 1 (5.26%) GitHub
5 1 (5.26%) GitHub Actions
5 1 (5.26%) npm
5 1 (5.26%) Serverless
5 1 (5.26%) Snowflake
Communications & Networking
1 5 (26.32%) Firewall
1 5 (26.32%) LAN
1 5 (26.32%) VoIP
1 5 (26.32%) WAN
2 2 (10.53%) FIX Connectivity
3 1 (5.26%) Broadband
3 1 (5.26%) Kerberos
3 1 (5.26%) SSH
Database & Business Intelligence
1 2 (10.53%) Hadoop
1 2 (10.53%) NoSQL
1 2 (10.53%) Relational Database
2 1 (5.26%) Apache Hive
2 1 (5.26%) Big Data
2 1 (5.26%) ClickHouse
2 1 (5.26%) Data Lake
2 1 (5.26%) Data Warehouse
2 1 (5.26%) Delta Lake
2 1 (5.26%) DynamoDB
2 1 (5.26%) Elasticsearch
2 1 (5.26%) KDB
2 1 (5.26%) Kdb+
2 1 (5.26%) Metadata
2 1 (5.26%) MySQL
2 1 (5.26%) Oracle Database
2 1 (5.26%) PostgreSQL
2 1 (5.26%) Spark SQL
2 1 (5.26%) SQL Server
Development Applications
1 3 (15.79%) Jenkins
1 3 (15.79%) JIRA
2 2 (10.53%) Git
3 1 (5.26%) Bitbucket
3 1 (5.26%) CircleCI
3 1 (5.26%) Cypress.io
3 1 (5.26%) GitLab
3 1 (5.26%) MLflow
3 1 (5.26%) Mocha
3 1 (5.26%) webpack
General
1 8 (42.11%) Finance
2 6 (31.58%) Social Skills
3 2 (10.53%) Analytical Skills
3 2 (10.53%) Inclusion and Diversity
4 1 (5.26%) Banking
4 1 (5.26%) Multimedia
4 1 (5.26%) Organisational Skills
4 1 (5.26%) Public Sector
4 1 (5.26%) Telecoms
Job Titles
1 5 (26.32%) Senior
2 3 (15.79%) Analyst
2 3 (15.79%) Developer
3 2 (10.53%) Integration Specialist
3 2 (10.53%) Operational Support Analyst
3 2 (10.53%) Operations Analyst
3 2 (10.53%) Operations Support Analyst
3 2 (10.53%) Platform Engineer
4 1 (5.26%) Applications Support Analyst
4 1 (5.26%) Automation Developer
4 1 (5.26%) Data Engineer
4 1 (5.26%) Full-Stack Developer
4 1 (5.26%) KDB Developer
4 1 (5.26%) Machine Learning Engineer
4 1 (5.26%) Operations Engineer
4 1 (5.26%) Operations Support Specialist
4 1 (5.26%) Platform Support Engineer
4 1 (5.26%) Principal Architect
4 1 (5.26%) Principal Data Architect
4 1 (5.26%) Unix Systems Administrator
Libraries, Frameworks & Software Standards
1 4 (21.05%) FIX Protocol
2 1 (5.26%) ActiveMQ
2 1 (5.26%) D3.js
2 1 (5.26%) Elastic Stack
2 1 (5.26%) JDBC
2 1 (5.26%) Kafka
2 1 (5.26%) Keras
2 1 (5.26%) Lambda Expressions
2 1 (5.26%) LDAP
2 1 (5.26%) Node.js
2 1 (5.26%) NumPy
2 1 (5.26%) OAuth
2 1 (5.26%) OAuth2
2 1 (5.26%) ODBC
2 1 (5.26%) Pandas
2 1 (5.26%) React
2 1 (5.26%) Redux
2 1 (5.26%) scikit-learn
2 1 (5.26%) TensorFlow
2 1 (5.26%) YAML
Miscellaneous
1 5 (26.32%) PKI
2 2 (10.53%) Linux Command Line
2 2 (10.53%) Onboarding
3 1 (5.26%) Distributed Architecture
3 1 (5.26%) Distributed Systems
3 1 (5.26%) Security Operations Centre
3 1 (5.26%) Social Media
3 1 (5.26%) Tandem
Operating Systems
1 16 (84.21%) Linux
2 7 (36.84%) Windows
3 1 (5.26%) AIX
3 1 (5.26%) Debian
3 1 (5.26%) Red Hat Enterprise Linux
3 1 (5.26%) Solaris
Processes & Methodologies
1 8 (42.11%) ITIL
2 7 (36.84%) Infrastructure as Code
2 7 (36.84%) Knowledge Transfer
3 5 (26.32%) Application Packaging
3 5 (26.32%) CI/CD
3 5 (26.32%) DevSecOps
3 5 (26.32%) Identity Access Management
3 5 (26.32%) Roadmaps
3 5 (26.32%) Service Delivery
3 5 (26.32%) Strategic Planning
3 5 (26.32%) Technology Roadmap
3 5 (26.32%) Technology Strategy
4 4 (21.05%) High Availability
4 4 (21.05%) Problem-Solving
5 3 (15.79%) DevOps
5 3 (15.79%) Incident Response
6 2 (10.53%) Analytics
6 2 (10.53%) SDLC
6 2 (10.53%) Security Operations
6 2 (10.53%) Task Automation
Programming Languages
1 9 (47.37%) Python
2 7 (36.84%) SQL
3 6 (31.58%) PowerShell
4 5 (26.32%) Bash
5 2 (10.53%) Shell Script
6 1 (5.26%) C++
6 1 (5.26%) Java
6 1 (5.26%) JavaScript
6 1 (5.26%) R
Qualifications
1 3 (15.79%) Degree
2 2 (10.53%) Computer Science Degree
2 2 (10.53%) Security Cleared
3 1 (5.26%) BPSS Clearance
3 1 (5.26%) ITIL Foundation Certificate
3 1 (5.26%) SC Cleared
System Software
1 6 (31.58%) Active Directory
2 5 (26.32%) Virtual Desktop
2 5 (26.32%) XenApp
2 5 (26.32%) XenDesktop
3 3 (15.79%) Docker
Systems Management
1 5 (26.32%) Microsoft Intune
1 5 (26.32%) SCCM
1 5 (26.32%) Single Sign-On
2 4 (21.05%) Ansible
2 4 (21.05%) Grafana
3 3 (15.79%) Kubernetes
3 3 (15.79%) Terraform
4 2 (10.53%) Prometheus
4 2 (10.53%) Puppet
5 1 (5.26%) Ambari
5 1 (5.26%) Kubeflow
5 1 (5.26%) Podman
5 1 (5.26%) Progress Chef
5 1 (5.26%) ZABBIX
Vendors
1 7 (36.84%) Microsoft
2 5 (26.32%) Citrix
3 2 (10.53%) Databricks
3 2 (10.53%) Splunk
4 1 (5.26%) Atlassian
4 1 (5.26%) Dell
4 1 (5.26%) Gemalto
4 1 (5.26%) Google
4 1 (5.26%) IBM
4 1 (5.26%) Oracle
4 1 (5.26%) Red Hat
4 1 (5.26%) Thales