Period
to 27 January 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 27 January 2021 with a comparison to the same period in the previous 2 years.

Unix
England > London
6 months to
27 Jan 2021
Same period 2020 Same period 2019
Rank 126 112 91
Rank change year-on-year -14 -21 -24
Permanent jobs citing Unix 646 1,474 2,218
As % of all permanent jobs advertised in London 2.62% 2.89% 3.56%
As % of the Operating Systems category 14.49% 13.70% 15.78%
Number of salaries quoted 576 1,136 1,756
Median annual salary £72,500 £70,000 £67,500
Median salary % change year-on-year +3.57% +3.70% +3.85%
10th Percentile £52,500 £42,500 £42,500
90th Percentile £95,000 £110,000 £102,500
England median annual salary £62,500 £55,750 £57,500
% change year-on-year +12.11% -3.04% +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 4,458 10,762 14,057
As % of all permanent IT jobs advertised in London 18.10% 21.14% 22.57%
Number of salaries quoted 3,683 8,825 11,771
Median annual salary £65,000 £57,500 £60,000
Median salary % change year-on-year +13.04% -4.17% +9.09%
10th Percentile £35,000 £28,750 £30,000
90th Percentile £95,000 £90,600 £90,000
England median annual salary £50,000 £46,000 £47,500
% change year-on-year +8.70% -3.16% +5.56%

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 27 January 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 27 January 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 -23 120 £70,000 -6.67% 50
East London +23 12 £72,500 +31.82% 6
South London +12 9 £72,500 +11.54% 1
West London -2 8 £50,000 -23.08% 7
North London +23 3 £80,000 +33.89%
Unix
England

For the 6 months to 27 January 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.

1 403 (62.38%) Linux
2 342 (52.94%) Python
3 250 (38.70%) Finance
4 241 (37.31%) SQL
5 232 (35.91%) Java
6 208 (32.20%) AWS
7 204 (31.58%) DevOps
8 185 (28.64%) Oracle
9 163 (25.23%) Agile Software Development
10 140 (21.67%) Ansible
11 139 (21.52%) Windows
12 138 (21.36%) Azure
13 137 (21.21%) Docker
14 121 (18.73%) Puppet
15 119 (18.42%) Shell Script
16 113 (17.49%) Kubernetes
17 109 (16.87%) Git (software)
18 99 (15.33%) Jenkins
18 99 (15.33%) Banking
19 90 (13.93%) Terraform
20 88 (13.62%) JavaScript
21 87 (13.47%) Perl
22 85 (13.16%) Bash Shell
23 78 (12.07%) Analytics
24 76 (11.76%) Software Engineering
25 75 (11.61%) SQL Server
26 74 (11.46%) Opscode Chef
27 73 (11.30%) PL/SQL
27 73 (11.30%) Site Reliability Engineering
28 71 (10.99%) Scrum

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 38 (5.88%) SAS
2 32 (4.95%) Confluence
3 17 (2.63%) Apache
4 16 (2.48%) IIS
5 12 (1.86%) Elasticsearch
5 12 (1.86%) MTS
6 10 (1.55%) WebLogic
6 10 (1.55%) WebSphere
7 9 (1.39%) Apache Spark
8 6 (0.93%) Cloud Foundry
8 6 (0.93%) nginx
8 6 (0.93%) Oracle Workflow
9 5 (0.77%) GeoServer
9 5 (0.77%) OpenStack
10 3 (0.46%) SharePoint
10 3 (0.46%) Tomcat
11 2 (0.31%) Drupal
11 2 (0.31%) Facebook Platform
12 1 (0.15%) CloudStack
12 1 (0.15%) Ethereum
Applications
1 13 (2.01%) Microsoft Office
2 7 (1.08%) Microsoft Excel
3 6 (0.93%) Microsoft PowerPoint
3 6 (0.93%) MS Visio
4 1 (0.15%) Spreadsheet
Business Applications
1 8 (1.24%) R3 Corda
2 6 (0.93%) Remedy ITSM
3 1 (0.15%) Magento
3 1 (0.15%) Temenos T24
Cloud Services
1 208 (32.20%) AWS
2 138 (21.36%) Azure
3 41 (6.35%) Power Platform
4 40 (6.19%) GCP
5 26 (4.02%) AWS CloudFormation
5 26 (4.02%) Office 365
6 19 (2.94%) Serverless
7 18 (2.79%) IaaS
8 15 (2.32%) Amazon ECS
9 13 (2.01%) Amazon EC2
10 12 (1.86%) Amazon S3
10 12 (1.86%) Azure Active Directory
11 11 (1.70%) Amazon EKS
11 11 (1.70%) PaaS
12 10 (1.55%) OpenShift
13 9 (1.39%) GitHub
14 8 (1.24%) Amazon SQS
14 8 (1.24%) AWS Lambda
14 8 (1.24%) Slack
15 7 (1.08%) SaaS
Communications & Networking
1 63 (9.75%) TCP/IP
2 40 (6.19%) Firewall
3 27 (4.18%) DNS
4 21 (3.25%) SSH
5 14 (2.17%) DHCP
5 14 (2.17%) LAN
5 14 (2.17%) WAN
6 13 (2.01%) VPN
7 10 (1.55%) SAN
7 10 (1.55%) SSL
8 8 (1.24%) HTTP
9 7 (1.08%) Internet
9 7 (1.08%) IPsec
9 7 (1.08%) Network Security
10 6 (0.93%) Cisco ASA
10 6 (0.93%) F5 BIG-IP GTM
10 6 (0.93%) F5 BIG-IP LTM
10 6 (0.93%) FIX Connectivity
10 6 (0.93%) Intrusion Detection
11 5 (0.77%) Wireshark
Database & Business Intelligence
1 75 (11.61%) SQL Server
2 50 (7.74%) Hadoop
3 47 (7.28%) Oracle Database
4 43 (6.66%) Big Data
5 42 (6.50%) Apache Hive
6 41 (6.35%) Power BI
7 40 (6.19%) BusinessObjects
8 39 (6.04%) Impala
8 39 (6.04%) PostgreSQL
9 37 (5.73%) Pentaho
10 34 (5.26%) Data Warehouse
11 27 (4.18%) MySQL
12 26 (4.02%) Relational Database
12 26 (4.02%) SQL Server Integration Services
13 22 (3.41%) NoSQL
13 22 (3.41%) SQL Server Reporting Services
14 19 (2.94%) Blockchain
15 16 (2.48%) MongoDB
16 15 (2.32%) Redis
17 13 (2.01%) DB2
Development Applications
1 109 (16.87%) Git (software)
2 99 (15.33%) Jenkins
3 58 (8.98%) JIRA
4 47 (7.28%) GitLab
5 22 (3.41%) Maven
6 20 (3.10%) Atlassian Bamboo
7 19 (2.94%) Selenium
8 18 (2.79%) Cucumber
8 18 (2.79%) JMeter
8 18 (2.79%) Team Foundation Server
9 15 (2.32%) Subversion
10 14 (2.17%) Bitbucket
11 12 (1.86%) Eclipse
11 12 (1.86%) IntelliJ
11 12 (1.86%) TeamCity
12 10 (1.55%) Gerrit
12 10 (1.55%) Visual Studio Team System
13 9 (1.39%) Ant
13 9 (1.39%) TestNG
14 8 (1.24%) JUnit
General
1 250 (38.70%) Finance
2 99 (15.33%) Banking
3 48 (7.43%) Back Office
4 44 (6.81%) Front Office
5 21 (3.25%) Investment Banking
6 18 (2.79%) Financial Institution
7 17 (2.63%) Marketing
8 9 (1.39%) Advertising
8 9 (1.39%) Retail
9 6 (0.93%) Italian Language
10 5 (0.77%) Local Government
10 5 (0.77%) Telecoms
11 4 (0.62%) Electronics
11 4 (0.62%) Legal
11 4 (0.62%) Public Sector
12 2 (0.31%) Billing
12 2 (0.31%) Games
12 2 (0.31%) Law
13 1 (0.15%) Digital Economy
13 1 (0.15%) International Banking
Job Titles
1 126 (19.50%) Developer
2 83 (12.85%) DevOps Engineer
3 62 (9.60%) Applications Support
4 59 (9.13%) Linux Engineer
5 48 (7.43%) Data Engineer
6 46 (7.12%) Java Developer
7 45 (6.97%) Analyst
8 38 (5.88%) Site Reliability Engineer
9 34 (5.26%) Site Engineer
10 32 (4.95%) Support Analyst
11 30 (4.64%) Linux/Unix DevOps
12 29 (4.49%) AWS DevOps
12 29 (4.49%) Python Developer
12 29 (4.49%) Python Engineer
13 27 (4.18%) Administrator
13 27 (4.18%) Applications Support Analyst
13 27 (4.18%) AWS Engineer
14 25 (3.87%) Linux DevOps Engineer
15 24 (3.72%) Java Engineer
15 24 (3.72%) Platform Engineer
Libraries, Frameworks & Software Standards
1 66 (10.22%) FIX Protocol
2 37 (5.73%) .NET
3 34 (5.26%) XML
4 29 (4.49%) Kafka
5 28 (4.33%) Middleware
5 28 (4.33%) Node.js
5 28 (4.33%) Spring
6 26 (4.02%) HTML
6 26 (4.02%) Web Services
7 25 (3.87%) CSS
8 23 (3.56%) RESTful
9 17 (2.63%) HTML5
9 17 (2.63%) React
10 15 (2.32%) Gherkin
11 14 (2.17%) RabbitMQ
11 14 (2.17%) REST
12 13 (2.01%) AngularJS
13 12 (1.86%) Elastic Stack
13 12 (1.86%) JMS
13 12 (1.86%) Spring Boot
Miscellaneous
1 56 (8.67%) Analytical Skills
2 42 (6.50%) SWIFT
3 34 (5.26%) Management Information System
4 32 (4.95%) Equities
5 27 (4.18%) Self-Motivation
6 26 (4.02%) Hedge funds
7 23 (3.56%) Derivative
7 23 (3.56%) Fixed Income
8 22 (3.41%) Virtual Team
9 17 (2.63%) Data Centre
9 17 (2.63%) Linux Command Line
10 16 (2.48%) Foreign Exchange (FX)
11 15 (2.32%) Public Cloud
12 14 (2.17%) Cloud Native
12 14 (2.17%) PKI
13 12 (1.86%) Algorithms
13 12 (1.86%) Reference Data
14 9 (1.39%) Data Structures
14 9 (1.39%) iPad
15 7 (1.08%) Distributed Denial-of-Service
Operating Systems
1 403 (62.38%) Linux
2 139 (21.52%) Windows
3 43 (6.66%) Red Hat Enterprise Linux
4 32 (4.95%) Windows Server
5 25 (3.87%) CentOS
6 15 (2.32%) CoreOS
6 15 (2.32%) zOS
7 14 (2.17%) Android
7 14 (2.17%) Solaris
7 14 (2.17%) Ubuntu
8 8 (1.24%) VMS
9 7 (1.08%) Mac OS
9 7 (1.08%) Windows Server 2008
10 6 (0.93%) AIX
10 6 (0.93%) Debian
10 6 (0.93%) Fedora
11 5 (0.77%) Windows XP
12 4 (0.62%) Windows 10
13 3 (0.46%) Oracle Linux
13 3 (0.46%) SUSE
Processes & Methodologies
1 204 (31.58%) DevOps
2 163 (25.23%) Agile Software Development
3 78 (12.07%) Analytics
4 76 (11.76%) Software Engineering
5 73 (11.30%) Site Reliability Engineering
6 71 (10.99%) Scrum
7 69 (10.68%) Test Automation
8 66 (10.22%) Fintech
9 65 (10.06%) Continuous Integration
10 64 (9.91%) Mentoring
11 58 (8.98%) Configuration Management
12 55 (8.51%) ETL
13 52 (8.05%) Problem-Solving
14 51 (7.89%) SDLC
15 48 (7.43%) Process Improvement
16 46 (7.12%) Computer Science
16 46 (7.12%) Incident Management
17 45 (6.97%) Data Analytics
17 45 (6.97%) Infrastructure as Code
18 44 (6.81%) TDD
Programming Languages
1 342 (52.94%) Python
2 241 (37.31%) SQL
3 232 (35.91%) Java
4 119 (18.42%) Shell Script
5 88 (13.62%) JavaScript
6 87 (13.47%) Perl
7 85 (13.16%) Bash Shell
8 73 (11.30%) PL/SQL
9 48 (7.43%) Ruby
10 47 (7.28%) PowerShell
11 44 (6.81%) C++
12 37 (5.73%) HiveQL
13 34 (5.26%) C#
14 33 (5.11%) C
15 29 (4.49%) Go
16 21 (3.25%) PHP
17 20 (3.10%) Kotlin
18 14 (2.17%) Scala
19 13 (2.01%) T-SQL
19 13 (2.01%) TypeScript
Qualifications
1 58 (8.98%) Degree
2 26 (4.02%) Computer Science Degree
3 24 (3.72%) BPSS Clearance
4 22 (3.41%) CISSP
5 16 (2.48%) CISM
6 15 (2.32%) Cisco Certification
7 11 (1.70%) Master's Degree
8 10 (1.55%) SANS
8 10 (1.55%) Security Cleared
9 9 (1.39%) (ISC)2 CCSP
9 9 (1.39%) CCSP
10 8 (1.24%) CCNA
11 7 (1.08%) CISA
11 7 (1.08%) CREST Certified
11 7 (1.08%) SC Cleared
12 6 (0.93%) AWS Certification
12 6 (0.93%) CEPT
12 6 (0.93%) EC-Council LPT
12 6 (0.93%) GXPN
12 6 (0.93%) OSCE
Quality Assurance & Compliance
1 50 (7.74%) QA
2 17 (2.63%) Data Quality
3 14 (2.17%) ISO/IEC 27001
4 12 (1.86%) SLA
5 11 (1.70%) COBIT
6 7 (1.08%) NIST
7 6 (0.93%) MiFID
7 6 (0.93%) PCI DSS
8 5 (0.77%) Dodd-Frank
8 5 (0.77%) EMIR
8 5 (0.77%) GDPR
9 1 (0.15%) FINRA
9 1 (0.15%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
9 1 (0.15%) NIST 800
System Software
1 137 (21.21%) Docker
2 48 (7.43%) Active Directory
3 45 (6.97%) VMware Infrastructure
4 37 (5.73%) HDFS
5 10 (1.55%) RHEV
6 7 (1.08%) Xen
7 6 (0.93%) KVM
7 6 (0.93%) Oracle RAC
7 6 (0.93%) Virtual Machines
8 5 (0.77%) NFS
9 4 (0.62%) Hyper-V
9 4 (0.62%) Samba
10 3 (0.46%) Firmware
10 3 (0.46%) OCFS2
10 3 (0.46%) Postfix
10 3 (0.46%) qmail
10 3 (0.46%) Sendmail
10 3 (0.46%) Veritas Cluster Server
10 3 (0.46%) Veritas Volume Manager
10 3 (0.46%) VMware Workstation
Systems Management
1 140 (21.67%) Ansible
2 121 (18.73%) Puppet
3 113 (17.49%) Kubernetes
4 90 (13.93%) Terraform
5 74 (11.46%) Opscode Chef
6 25 (3.87%) Prometheus
7 15 (2.32%) Nagios
8 13 (2.01%) Grafana
9 12 (1.86%) Control-M
10 10 (1.55%) Istio
11 9 (1.39%) Salt
12 5 (0.77%) CSIRT
12 5 (0.77%) HAProxy
12 5 (0.77%) ITRS Geneos
13 4 (0.62%) CFEngine
13 4 (0.62%) Microsoft Intune
13 4 (0.62%) Packer
13 4 (0.62%) ZABBIX
14 3 (0.46%) Norton AntiVirus
14 3 (0.46%) SCCM
Vendors
1 185 (28.64%) Oracle
2 62 (9.60%) VMware
3 53 (8.20%) Microsoft
4 48 (7.43%) Red Hat
5 46 (7.12%) Informatica
6 39 (6.04%) Cloudera
7 37 (5.73%) Google
7 37 (5.73%) Sybase
7 37 (5.73%) Talend
8 27 (4.18%) Cisco
9 19 (2.94%) IBM
9 19 (2.94%) Splunk
10 16 (2.48%) ServiceNow
11 10 (1.55%) Dynatrace
12 9 (1.39%) Atlassian
13 8 (1.24%) CheckPoint
14 7 (1.08%) F5
14 7 (1.08%) Solace
14 7 (1.08%) TIBCO
15 6 (0.93%) CyberArk