Period
to 13 April 2021

The following table provides summary statistics for permanent job vacancies advertised in London with a requirement for Unix skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Unix over the 6 months to 13 April 2021 with a comparison to the same period in the previous 2 years.

Unix
England > London
6 months to
13 Apr 2021
Same period 2020 Same period 2019
Rank 138 124 87
Rank change year-on-year -14 -37 -10
Permanent jobs citing Unix 774 1,252 2,214
As % of all permanent jobs advertised in London 2.51% 2.67% 3.63%
As % of the Operating Systems category 14.25% 13.42% 16.25%
Number of salaries quoted 609 996 1,754
10th Percentile £52,500 £42,500 £41,250
25th Percentile £60,000 £52,500 £50,000
Median annual salary (50th Percentile) £75,000 £70,000 £67,500
Median % change year-on-year +7.14% +3.70% -
75th Percentile £86,250 £87,500 £82,500
90th Percentile £98,000 £102,500 £100,000
England median annual salary £65,000 £57,500 £55,000
% change year-on-year +13.04% +4.55% -

Unix is in the Operating Systems category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in London with a requirement for operating system skills.

All Operating Systems
London
Permanent vacancies with a requirement for operating system skills 5,433 9,327 13,628
As % of all permanent IT jobs advertised in London 17.62% 19.86% 22.33%
Number of salaries quoted 4,418 7,653 11,399
10th Percentile £35,000 £30,500 £30,000
25th Percentile £48,750 £40,750 £41,250
Median annual salary (50th Percentile) £65,000 £60,000 £60,000
Median % change year-on-year +8.33% - +9.09%
75th Percentile £82,500 £76,250 £76,250
90th Percentile £95,000 £91,250 £90,000
England median annual salary £50,000 £47,500 £47,500
% change year-on-year +5.26% - -

Unix
Job Vacancy Trend in London

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

Job vacancy trend for Unix in London

Unix
Salary Trend in London

3-month moving average salary quoted in jobs citing Unix in London.

Salary trend for Unix in London

Unix
Salary Histogram in London

Salary distribution for jobs citing Unix in London over the 6 months to 13 April 2021.

Salary histogram for Unix in London

Unix
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Unix within the London region over the 6 months to 13 April 2021. 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
Job
Vacancies
Central London -20 145 £70,000 -6.67% 43
East London +23 13 £72,500 +3.57% 4
West London +16 11 £75,000 +15.38% 11
South London +6 10 £72,500 -3.33%
North London +25 2 £80,000 +45.45% 1
Unix
England

For the 6 months to 13 April 2021, IT jobs citing Unix also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the London region with a requirement for Unix.

1 514 (66.41%) Linux
2 375 (48.45%) Python
3 314 (40.57%) Finance
4 291 (37.60%) SQL
5 258 (33.33%) DevOps
6 255 (32.95%) Java
7 239 (30.88%) AWS
8 199 (25.71%) Agile Software Development
9 196 (25.32%) Windows
10 190 (24.55%) Docker
11 162 (20.93%) Azure
12 159 (20.54%) Oracle
13 143 (18.48%) Ansible
14 139 (17.96%) Git (software)
15 136 (17.57%) Banking
16 135 (17.44%) Kubernetes
17 130 (16.80%) Jenkins
18 128 (16.54%) Bash Shell
19 107 (13.82%) JavaScript
20 98 (12.66%) Terraform
21 94 (12.14%) JIRA
22 93 (12.02%) Perl
23 92 (11.89%) Software Engineering
23 92 (11.89%) Puppet
24 88 (11.37%) FIX Protocol
25 87 (11.24%) SQL Server
26 84 (10.85%) Shell Script
27 82 (10.59%) Test Automation
28 81 (10.47%) GCP
29 79 (10.21%) Analytical Skills

Unix
Co-occurring IT Skills in London by Category

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

Application Platforms
1 34 (4.39%) Confluence
2 25 (3.23%) Apache
3 22 (2.84%) Elasticsearch
4 20 (2.58%) Apache Spark
5 16 (2.07%) SAS
6 11 (1.42%) MTS
6 11 (1.42%) nginx
7 10 (1.29%) IIS
8 9 (1.16%) OpenStack
8 9 (1.16%) WebSphere
9 7 (0.90%) Cloud Foundry
10 5 (0.65%) Apache Airflow
10 5 (0.65%) Drupal
10 5 (0.65%) Facebook Platform
10 5 (0.65%) Tornado
10 5 (0.65%) WebLogic
11 4 (0.52%) CloudStack
11 4 (0.52%) Oracle SOA Suite
12 3 (0.39%) SharePoint
13 2 (0.26%) JBoss
Applications
1 8 (1.03%) Microsoft Excel
2 6 (0.78%) MS Visio
3 5 (0.65%) Adobe After Effects
3 5 (0.65%) Adobe XD
3 5 (0.65%) Figma
3 5 (0.65%) Microsoft PowerPoint
3 5 (0.65%) Sketch
4 4 (0.52%) Microsoft Office
5 2 (0.26%) Adobe Illustrator
5 2 (0.26%) GIMP
5 2 (0.26%) Photoshop
Business Applications
1 19 (2.45%) R3 Corda
2 3 (0.39%) Distributed Ledger
3 2 (0.26%) Temenos T24
4 1 (0.13%) Dynamics AX
4 1 (0.13%) IntelliMatch
4 1 (0.13%) Magento
4 1 (0.13%) Markit EDM
4 1 (0.13%) NetSuite
4 1 (0.13%) RMDS
4 1 (0.13%) SAP HCM
4 1 (0.13%) Sentinel
Cloud Services
1 239 (30.88%) AWS
2 162 (20.93%) Azure
3 81 (10.47%) GCP
4 37 (4.78%) Serverless
5 25 (3.23%) AWS CloudFormation
6 24 (3.10%) Amazon EC2
6 24 (3.10%) IaaS
7 22 (2.84%) Amazon ECS
7 22 (2.84%) AWS Lambda
8 21 (2.71%) Amazon S3
9 20 (2.58%) Amazon EKS
10 19 (2.45%) Power Platform
10 19 (2.45%) SaaS
11 18 (2.33%) GitHub
12 15 (1.94%) Microsoft 365
13 14 (1.81%) OpenShift
14 13 (1.68%) PaaS
15 10 (1.29%) Amazon SQS
15 10 (1.29%) Slack
16 8 (1.03%) CloudFront
Communications & Networking
1 57 (7.36%) TCP/IP
2 44 (5.68%) Firewall
3 33 (4.26%) SSH
4 22 (2.84%) DNS
5 15 (1.94%) DHCP
6 14 (1.81%) HTTP
6 14 (1.81%) WAN
7 13 (1.68%) LAN
7 13 (1.68%) SAN
8 11 (1.42%) FIX Connectivity
9 10 (1.29%) Cisco ASA
9 10 (1.29%) F5 BIG-IP GTM
9 10 (1.29%) F5 BIG-IP LTM
9 10 (1.29%) IPsec
9 10 (1.29%) VPN
10 9 (1.16%) Intrusion Detection
10 9 (1.16%) SSL
10 9 (1.16%) VLAN
11 8 (1.03%) BGP
11 8 (1.03%) NAS
Database & Business Intelligence
1 87 (11.24%) SQL Server
2 61 (7.88%) Data Warehouse
3 58 (7.49%) PostgreSQL
4 55 (7.11%) Relational Database
5 51 (6.59%) Hadoop
6 50 (6.46%) MySQL
7 46 (5.94%) SQL Server Reporting Services
8 45 (5.81%) SQL Server Integration Services
9 36 (4.65%) NoSQL
10 35 (4.52%) Oracle Database
11 30 (3.88%) MongoDB
12 29 (3.75%) Big Data
13 26 (3.36%) Blockchain
14 23 (2.97%) RDBMS
15 22 (2.84%) Apache Hive
16 20 (2.58%) BusinessObjects
17 19 (2.45%) Power BI
18 16 (2.07%) Impala
18 16 (2.07%) Pentaho
19 15 (1.94%) Redis
Development Applications
1 139 (17.96%) Git (software)
2 130 (16.80%) Jenkins
3 94 (12.14%) JIRA
4 67 (8.66%) GitLab
5 33 (4.26%) Cucumber
5 33 (4.26%) Maven
6 30 (3.88%) Selenium
7 22 (2.84%) Sonatype Nexus
8 20 (2.58%) Bitbucket
9 19 (2.45%) JUnit
10 17 (2.20%) Atlassian Bamboo
10 17 (2.20%) TeamCity
11 16 (2.07%) Team Foundation Server
12 15 (1.94%) Eclipse
12 15 (1.94%) IntelliJ
12 15 (1.94%) JMeter
13 12 (1.55%) SonarQube
14 11 (1.42%) RSpec
14 11 (1.42%) webpack
15 10 (1.29%) WebDriver
General
1 314 (40.57%) Finance
2 136 (17.57%) Banking
3 71 (9.17%) Back Office
4 63 (8.14%) Front Office
5 47 (6.07%) Investment Banking
6 34 (4.39%) Marketing
7 22 (2.84%) Financial Institution
8 21 (2.71%) Advertising
9 18 (2.33%) Games
10 17 (2.20%) Retail
11 15 (1.94%) Electronics
12 9 (1.16%) Local Government
13 8 (1.03%) Legal
14 6 (0.78%) Online Betting
15 5 (0.65%) Public Sector
16 4 (0.52%) Telecoms
17 2 (0.26%) Billing
17 2 (0.26%) Retail Banking
18 1 (0.13%) Housing Association
18 1 (0.13%) International Banking
Job Titles
1 195 (25.19%) Developer
2 105 (13.57%) DevOps Engineer
3 100 (12.92%) Applications Support
4 74 (9.56%) Analyst
5 70 (9.04%) Java Developer
6 59 (7.62%) Support Analyst
7 50 (6.46%) Applications Support Analyst
8 41 (5.30%) Senior Developer
9 37 (4.78%) Linux Engineer
10 32 (4.13%) Linux/Unix DevOps
11 27 (3.49%) Data Engineer
12 25 (3.23%) Linux DevOps Engineer
13 24 (3.10%) AWS DevOps
13 24 (3.10%) Consultant
14 23 (2.97%) Architect
14 23 (2.97%) Python Developer
14 23 (2.97%) Unix Support
15 22 (2.84%) AWS Engineer
16 21 (2.71%) Platform Engineer
16 21 (2.71%) Site Reliability Engineer
Libraries, Frameworks & Software Standards
1 88 (11.37%) FIX Protocol
2 63 (8.14%) Kafka
3 59 (7.62%) Web Services
4 58 (7.49%) .NET
5 54 (6.98%) Node.js
6 50 (6.46%) Spring
7 41 (5.30%) XML
8 39 (5.04%) React
8 39 (5.04%) RESTful
9 37 (4.78%) HTML
10 36 (4.65%) CSS
11 34 (4.39%) Middleware
12 28 (3.62%) REST
13 27 (3.49%) Spring Boot
14 22 (2.84%) Sass
15 20 (2.58%) Elastic Stack
15 20 (2.58%) Gherkin
15 20 (2.58%) HTML5
16 19 (2.45%) AngularJS
17 18 (2.33%) RabbitMQ
Miscellaneous
1 79 (10.21%) Analytical Skills
2 46 (5.94%) Derivative
3 45 (5.81%) Equities
4 43 (5.56%) SWIFT
5 38 (4.91%) Linux Command Line
6 35 (4.52%) Management Information System
7 34 (4.39%) Foreign Exchange (FX)
8 33 (4.26%) Fixed Income
9 32 (4.13%) Self-Motivation
10 30 (3.88%) PKI
11 28 (3.62%) Virtual Team
12 24 (3.10%) Data Centre
13 20 (2.58%) Hedge funds
14 18 (2.33%) Public Cloud
15 16 (2.07%) Algorithms
15 16 (2.07%) Cloud Native
16 15 (1.94%) iPad
17 13 (1.68%) Enterprise Software
18 12 (1.55%) Data Structures
18 12 (1.55%) Reference Data
Operating Systems
1 514 (66.41%) Linux
2 196 (25.32%) Windows
3 62 (8.01%) Red Hat Enterprise Linux
4 37 (4.78%) Windows Server
5 28 (3.62%) CentOS
6 26 (3.36%) Ubuntu
7 21 (2.71%) Android
8 20 (2.58%) Solaris
9 13 (1.68%) Apple iOS
10 10 (1.29%) CoreOS
10 10 (1.29%) zOS
11 8 (1.03%) Mac OS
12 7 (0.90%) AIX
12 7 (0.90%) Debian
13 5 (0.65%) Oracle Linux
13 5 (0.65%) Windows 10
14 4 (0.52%) Embedded Linux
14 4 (0.52%) SUSE
15 3 (0.39%) VMS
15 3 (0.39%) Windows Server 2008
Processes & Methodologies
1 258 (33.33%) DevOps
2 199 (25.71%) Agile Software Development
3 92 (11.89%) Software Engineering
4 82 (10.59%) Test Automation
5 75 (9.69%) Continuous Integration
5 75 (9.69%) Problem-Solving
6 74 (9.56%) TDD
7 68 (8.79%) Fintech
8 64 (8.27%) Configuration Management
8 64 (8.27%) Microservices
9 63 (8.14%) Infrastructure as Code
9 63 (8.14%) Scrum
10 60 (7.75%) Site Reliability Engineering
11 55 (7.11%) SDLC
12 53 (6.85%) Incident Management
13 52 (6.72%) Analytics
14 49 (6.33%) Mentoring
15 47 (6.07%) Cybersecurity
16 46 (5.94%) Stakeholder Management
17 42 (5.43%) Computer Science
Programming Languages
1 375 (48.45%) Python
2 291 (37.60%) SQL
3 255 (32.95%) Java
4 128 (16.54%) Bash Shell
5 107 (13.82%) JavaScript
6 93 (12.02%) Perl
7 84 (10.85%) Shell Script
8 58 (7.49%) C#
9 50 (6.46%) C++
9 50 (6.46%) PowerShell
10 49 (6.33%) TypeScript
11 41 (5.30%) PL/SQL
12 39 (5.04%) C
12 39 (5.04%) Ruby
13 33 (4.26%) Scala
14 31 (4.01%) Kotlin
15 29 (3.75%) Go
16 23 (2.97%) PHP
17 21 (2.71%) Groovy
18 17 (2.20%) ES6
Qualifications
1 54 (6.98%) Degree
2 25 (3.23%) Computer Science Degree
3 20 (2.58%) Security Cleared
4 18 (2.33%) CISSP
5 15 (1.94%) SC Cleared
6 13 (1.68%) SANS
7 10 (1.29%) BPSS Clearance
8 9 (1.16%) CISM
9 8 (1.03%) CEPT
9 8 (1.03%) CISA
9 8 (1.03%) EC-Council LPT
9 8 (1.03%) GXPN
9 8 (1.03%) OSCE
9 8 (1.03%) OSWP
10 6 (0.78%) Cisco Certification
10 6 (0.78%) GSEC
11 5 (0.65%) AWS Certification
11 5 (0.65%) ITIL Foundation Certificate
12 4 (0.52%) CEH
12 4 (0.52%) FFIEC
Quality Assurance & Compliance
1 60 (7.75%) QA
2 17 (2.20%) MiFID
3 16 (2.07%) ISO/IEC 27001
4 12 (1.55%) COBIT
4 12 (1.55%) Data Quality
4 12 (1.55%) PCI DSS
5 9 (1.16%) SLA
6 8 (1.03%) NIST
7 7 (0.90%) EMIR
8 5 (0.65%) Dodd-Frank
8 5 (0.65%) GRC
9 3 (0.39%) FedRAMP
9 3 (0.39%) GDPR
9 3 (0.39%) ISO 9001
9 3 (0.39%) Sarbanes-Oxley
10 2 (0.26%) GLBA
11 1 (0.13%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
11 1 (0.13%) NIST 800
System Software
1 190 (24.55%) Docker
2 40 (5.17%) Active Directory
3 22 (2.84%) VMware Infrastructure
4 16 (2.07%) HDFS
5 11 (1.42%) Oracle RAC
6 6 (0.78%) KVM
7 5 (0.65%) NFS
7 5 (0.65%) Xen
8 4 (0.52%) Samba
9 3 (0.39%) Firmware
9 3 (0.39%) OCFS2
9 3 (0.39%) Postfix
9 3 (0.39%) qmail
9 3 (0.39%) Sendmail
9 3 (0.39%) Veritas Cluster Server
9 3 (0.39%) Veritas Volume Manager
9 3 (0.39%) vSphere
10 2 (0.26%) Hyper-V
10 2 (0.26%) Platform Symphony
10 2 (0.26%) Virtual Servers
Systems Management
1 143 (18.48%) Ansible
2 135 (17.44%) Kubernetes
3 98 (12.66%) Terraform
4 92 (11.89%) Puppet
5 61 (7.88%) Opscode Chef
6 32 (4.13%) Prometheus
7 18 (2.33%) Nagios
8 12 (1.55%) ITRS Geneos
9 11 (1.42%) Grafana
10 10 (1.29%) Istio
11 8 (1.03%) CFEngine
11 8 (1.03%) Packer
12 6 (0.78%) Control-M
12 6 (0.78%) Oracle RMAN
13 5 (0.65%) Docker Swarm
13 5 (0.65%) Rundeck
14 4 (0.52%) Ambari
14 4 (0.52%) Hadoop YARN
15 3 (0.39%) HAProxy
15 3 (0.39%) SELinux
Vendors
1 159 (20.54%) Oracle
2 62 (8.01%) Microsoft
3 56 (7.24%) Red Hat
4 54 (6.98%) Google
5 44 (5.68%) VMware
6 38 (4.91%) Sybase
7 37 (4.78%) Splunk
8 29 (3.75%) Cisco
9 23 (2.97%) Cloudera
10 21 (2.71%) Informatica
11 16 (2.07%) Talend
12 14 (1.81%) IBM
13 13 (1.68%) AppDynamics
14 12 (1.55%) ServiceNow
15 11 (1.42%) CheckPoint
15 11 (1.42%) F5
15 11 (1.42%) JDA
16 10 (1.29%) Apple
16 10 (1.29%) Bloomberg
16 10 (1.29%) Reuters