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 31 October 2025, with comparisons to the same periods in the previous two years.

6 months to
31 Oct 2025
Same period 2024 Same period 2023
Rank 112 142 119
Rank change year-on-year +30 -23 +26
Permanent jobs citing Unix 16 28 55
As % of all permanent jobs in the City of London 1.00% 1.01% 1.78%
As % of the Operating Systems category 8.74% 5.67% 10.46%
Number of salaries quoted 9 11 53
10th Percentile £49,250 £47,500 £50,500
25th Percentile £61,000 £56,250 £60,200
Median annual salary (50th Percentile) £75,000 £92,500 £72,500
Median % change year-on-year -18.92% +27.59% -14.20%
75th Percentile £87,500 £107,500 £95,000
90th Percentile £94,250 £112,500 £124,000
Central London median annual salary £75,000 £92,500 £72,500
% change year-on-year -18.92% +27.59% -14.71%

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 183 494 526
As % of all permanent jobs advertised in the City of London 11.39% 17.87% 17.01%
Number of salaries quoted 155 328 468
10th Percentile £34,050 £37,000 £31,600
25th Percentile £40,000 £47,500 £40,000
Median annual salary (50th Percentile) £52,500 £60,000 £60,000
Median % change year-on-year -12.50% - -7.69%
75th Percentile £77,500 £85,000 £78,750
90th Percentile £90,750 £116,125 £92,875
Central London median annual salary £55,000 £60,000 £60,000
% change year-on-year -8.33% - -

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 31 October 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 6 (37.50%) Microsoft Exchange
2 2 (12.50%) Apache Spark
2 2 (12.50%) Confluence
3 1 (6.25%) IIS
3 1 (6.25%) Oracle SOA Suite
3 1 (6.25%) SharePoint
Applications
1 1 (6.25%) Microsoft Excel
1 1 (6.25%) Microsoft Office
Business Applications
1 1 (6.25%) Oracle BPM
Cloud Services
1 8 (50.00%) Azure
2 6 (37.50%) AWS
2 6 (37.50%) OpenShift
3 5 (31.25%) Entra ID
3 5 (31.25%) Microsoft 365
4 3 (18.75%) GCP
5 1 (6.25%) Amazon CloudWatch
5 1 (6.25%) Amazon EKS
5 1 (6.25%) Amazon ELB
5 1 (6.25%) Amazon S3
5 1 (6.25%) AWS CloudFormation
5 1 (6.25%) Datadog
5 1 (6.25%) GitHub
5 1 (6.25%) GitHub Actions
5 1 (6.25%) npm
5 1 (6.25%) Serverless
5 1 (6.25%) Snowflake
Communications & Networking
1 5 (31.25%) Firewall
1 5 (31.25%) LAN
1 5 (31.25%) VoIP
1 5 (31.25%) WAN
2 1 (6.25%) Broadband
2 1 (6.25%) Kerberos
2 1 (6.25%) SSH
Database & Business Intelligence
1 2 (12.50%) Hadoop
1 2 (12.50%) NoSQL
2 1 (6.25%) Apache Hive
2 1 (6.25%) Big Data
2 1 (6.25%) ClickHouse
2 1 (6.25%) Data Lake
2 1 (6.25%) Data Warehouse
2 1 (6.25%) Delta Lake
2 1 (6.25%) DynamoDB
2 1 (6.25%) KDB
2 1 (6.25%) Kdb+
2 1 (6.25%) Metadata
2 1 (6.25%) MySQL
2 1 (6.25%) Oracle Database
2 1 (6.25%) PostgreSQL
2 1 (6.25%) Relational Database
2 1 (6.25%) Spark SQL
2 1 (6.25%) SQL Server
Development Applications
1 3 (18.75%) Jenkins
1 3 (18.75%) JIRA
2 2 (12.50%) Git
3 1 (6.25%) Bitbucket
3 1 (6.25%) CircleCI
3 1 (6.25%) Cypress.io
3 1 (6.25%) GitLab
3 1 (6.25%) MLflow
3 1 (6.25%) Mocha
3 1 (6.25%) webpack
General
1 7 (43.75%) Finance
2 5 (31.25%) Social Skills
3 2 (12.50%) Analytical Skills
4 1 (6.25%) Banking
4 1 (6.25%) Inclusion and Diversity
4 1 (6.25%) Multimedia
4 1 (6.25%) Organisational Skills
4 1 (6.25%) Public Sector
4 1 (6.25%) Telecoms
Job Titles
1 5 (31.25%) Senior
2 2 (12.50%) Analyst
2 2 (12.50%) Developer
2 2 (12.50%) Platform Engineer
3 1 (6.25%) Administrator
3 1 (6.25%) Data Architect
3 1 (6.25%) Data Centre Engineer
3 1 (6.25%) Full-Stack Developer
3 1 (6.25%) Infrastructure Engineer
3 1 (6.25%) Operational Support Analyst
3 1 (6.25%) Operations Analyst
3 1 (6.25%) Operations Engineer
3 1 (6.25%) Operations Support Analyst
3 1 (6.25%) Operations Support Specialist
3 1 (6.25%) Principal Architect
3 1 (6.25%) Support Engineer
3 1 (6.25%) Support Specialist
3 1 (6.25%) Systems Administrator
3 1 (6.25%) Unix Administrator
3 1 (6.25%) Unix Systems Administrator
Libraries, Frameworks & Software Standards
1 1 (6.25%) ActiveMQ
1 1 (6.25%) D3.js
1 1 (6.25%) Elastic Stack
1 1 (6.25%) FIX Protocol
1 1 (6.25%) JDBC
1 1 (6.25%) Kafka
1 1 (6.25%) Keras
1 1 (6.25%) Lambda Expressions
1 1 (6.25%) LDAP
1 1 (6.25%) Node.js
1 1 (6.25%) NumPy
1 1 (6.25%) OAuth
1 1 (6.25%) OAuth2
1 1 (6.25%) ODBC
1 1 (6.25%) Pandas
1 1 (6.25%) React
1 1 (6.25%) Redux
1 1 (6.25%) scikit-learn
1 1 (6.25%) TensorFlow
1 1 (6.25%) YAML
Miscellaneous
1 5 (31.25%) PKI
2 1 (6.25%) Data Centre
2 1 (6.25%) Distributed Architecture
2 1 (6.25%) Distributed Systems
2 1 (6.25%) Hybrid Cloud
2 1 (6.25%) Linux Command Line
2 1 (6.25%) Social Media
2 1 (6.25%) Tandem
Operating Systems
1 13 (81.25%) Linux
2 8 (50.00%) Windows
3 1 (6.25%) AIX
3 1 (6.25%) Debian
3 1 (6.25%) Red Hat Enterprise Linux
3 1 (6.25%) Solaris
Processes & Methodologies
1 8 (50.00%) ITIL
2 7 (43.75%) Infrastructure as Code
3 6 (37.50%) Knowledge Transfer
4 5 (31.25%) Application Packaging
4 5 (31.25%) CI/CD
4 5 (31.25%) DevSecOps
4 5 (31.25%) Identity Access Management
4 5 (31.25%) Roadmaps
4 5 (31.25%) Service Delivery
4 5 (31.25%) Strategic Planning
4 5 (31.25%) Technology Roadmap
4 5 (31.25%) Technology Strategy
5 4 (25.00%) Problem-Solving
6 3 (18.75%) DevOps
6 3 (18.75%) High Availability
7 2 (12.50%) Computer Science
7 2 (12.50%) Machine Learning
7 2 (12.50%) SDLC
7 2 (12.50%) Task Automation
7 2 (12.50%) Time Management
Programming Languages
1 7 (43.75%) Python
2 6 (37.50%) PowerShell
3 4 (25.00%) Bash
3 4 (25.00%) SQL
4 1 (6.25%) C++
4 1 (6.25%) Java
4 1 (6.25%) JavaScript
4 1 (6.25%) R
4 1 (6.25%) Shell Script
Qualifications
1 2 (12.50%) Computer Science Degree
1 2 (12.50%) Degree
1 2 (12.50%) Security Cleared
2 1 (6.25%) BPSS Clearance
2 1 (6.25%) ITIL Foundation Certificate
2 1 (6.25%) SC Cleared
System Software
1 6 (37.50%) Active Directory
2 5 (31.25%) Virtual Desktop
2 5 (31.25%) XenApp
2 5 (31.25%) XenDesktop
3 3 (18.75%) Docker
Systems Management
1 5 (31.25%) Microsoft Intune
1 5 (31.25%) SCCM
1 5 (31.25%) Single Sign-On
2 4 (25.00%) Ansible
3 3 (18.75%) Grafana
3 3 (18.75%) Kubernetes
3 3 (18.75%) Terraform
4 2 (12.50%) Prometheus
4 2 (12.50%) Puppet
5 1 (6.25%) Ambari
5 1 (6.25%) Kubeflow
5 1 (6.25%) Podman
5 1 (6.25%) Progress Chef
5 1 (6.25%) ZABBIX
Vendors
1 7 (43.75%) Microsoft
2 5 (31.25%) Citrix
3 2 (12.50%) Databricks
4 1 (6.25%) Dell
4 1 (6.25%) Gemalto
4 1 (6.25%) Google
4 1 (6.25%) IBM
4 1 (6.25%) Oracle
4 1 (6.25%) Red Hat
4 1 (6.25%) Splunk
4 1 (6.25%) Thales