Period
to 21 September 2019

The following table provides summary statistics for permanent job vacancies advertised in the City of 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 21 September 2019 with a comparison to the same period in the previous 2 years.

Unix
Central London > City of London
6 months to
21 Sep 2019
Same period 2018 Same period 2017
Rank 76 94 43
Rank change year-on-year +18 -51 -7
Permanent jobs citing Unix 378 376 561
As % of all permanent IT jobs advertised in the City of London 3.77% 3.40% 5.52%
As % of the Operating Systems category 15.84% 15.77% 22.30%
Number of salaries quoted 311 339 505
City of London median annual salary £70,000 £70,000 £65,000
Median salary % change year-on-year - +7.69% +4.00%
10th Percentile £45,000 £47,300 £37,500
90th Percentile £102,500 £102,500 £94,700
Central London median annual salary £70,000 £70,000 £65,000
% change year-on-year - +7.69% +8.33%

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 the City of London with a requirement for operating system skills.

All Operating Systems
City of London
Permanent vacancies with a requirement for operating system skills 2,386 2,385 2,516
As % of all permanent IT jobs advertised in the City of London 23.79% 21.60% 24.76%
Number of salaries quoted 2,054 2,129 2,269
City of London median annual salary £61,000 £60,000 £55,000
Median salary % change year-on-year +1.67% +9.09% -
10th Percentile £28,500 £29,000 £30,750
90th Percentile £95,000 £90,000 £86,250
Central London median annual salary £60,000 £60,000 £53,000
% change year-on-year - +13.21% -3.64%

Unix
Job Vacancy Trend in the City of London

Job postings citing Unix as a percentage 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

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Unix in the City of London.

Salary trend for Unix in the City of London

Unix
Salary Histogram in the City of London

The salary distribution of IT jobs citing Unix in the City of London over the 6 months to 21 September 2019.

Salary histogram for Unix in the City of London

For the 6 months to 21 September 2019, 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 City of London region with a requirement for Unix.

1 238 (62.96%) Linux
2 183 (48.41%) Finance
3 150 (39.68%) SQL
4 146 (38.62%) Python
5 123 (32.54%) Windows
6 102 (26.98%) AWS
7 95 (25.13%) Java
8 77 (20.37%) DevOps
9 75 (19.84%) Degree
10 68 (17.99%) Oracle
11 66 (17.46%) Problem-Solving
12 64 (16.93%) SQL Server
13 60 (15.87%) Azure
14 57 (15.08%) Bash Shell
15 52 (13.76%) Docker
16 50 (13.23%) Analytical Skills
16 50 (13.23%) C++
17 49 (12.96%) Kubernetes
18 48 (12.70%) XML
19 45 (11.90%) JavaScript
20 44 (11.64%) Banking
20 44 (11.64%) Computer Science
21 43 (11.38%) MySQL
22 39 (10.32%) FIX Protocol
23 38 (10.05%) Analytics
24 36 (9.52%) Ansible
24 36 (9.52%) GCP
25 34 (8.99%) Fixed Income
26 33 (8.73%) Front Office
26 33 (8.73%) Google

Unix
Co-occurring IT Skills in the City of 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 22 (5.82%) Apache Spark
2 17 (4.50%) Confluence
3 6 (1.59%) Apache
4 5 (1.32%) OpenStack
5 4 (1.06%) Oracle Coherence
6 3 (0.79%) IIS
7 2 (0.53%) Elasticsearch
7 2 (0.53%) SAS
7 2 (0.53%) Tomcat
8 1 (0.26%) Apache Pig
8 1 (0.26%) nginx
8 1 (0.26%) WordPress
Applications
1 16 (4.23%) Microsoft Office
2 2 (0.53%) Spreadsheet
Business Applications
1 23 (6.08%) Salesforce.com CRM
2 8 (2.12%) Dynamics CRM
3 3 (0.79%) SnowdropKCS
4 2 (0.53%) Temenos Globus
4 2 (0.53%) Temenos T24
5 1 (0.26%) ION MarketView
5 1 (0.26%) Payment Gateway
Cloud Services
1 102 (26.98%) AWS
2 60 (15.87%) Azure
3 36 (9.52%) GCP
4 23 (6.08%) Salesforce Sales Cloud
5 10 (2.65%) Power Platform
6 7 (1.85%) SaaS
7 6 (1.59%) GitHub
8 5 (1.32%) Amazon EC2
9 4 (1.06%) AWS CloudFormation
9 4 (1.06%) Azure Data Factory
9 4 (1.06%) IaaS
9 4 (1.06%) Trello
10 3 (0.79%) Amazon ECS
10 3 (0.79%) Cloud Computing
10 3 (0.79%) OpenShift
10 3 (0.79%) Serverless
11 2 (0.53%) Amazon EMR
11 2 (0.53%) Amazon S3
11 2 (0.53%) Amazon SQS
11 2 (0.53%) PaaS
Communications & Networking
1 32 (8.47%) TCP/IP
2 26 (6.88%) Firewall
3 25 (6.61%) HTTP
3 25 (6.61%) HTTPS
3 25 (6.61%) Intrusion Detection
4 23 (6.08%) IPsec
5 15 (3.97%) DNS
6 13 (3.44%) SAN
7 10 (2.65%) LAN
7 10 (2.65%) WAN
8 7 (1.85%) FIX Connectivity
9 4 (1.06%) DHCP
10 3 (0.79%) Network Security
10 3 (0.79%) SMTP
11 2 (0.53%) Cisco ASA
11 2 (0.53%) Cisco Firepower
11 2 (0.53%) Wireless
12 1 (0.26%) BIG-IP
12 1 (0.26%) Internet
12 1 (0.26%) Wireshark
Database & Business Intelligence
1 64 (16.93%) SQL Server
2 43 (11.38%) MySQL
3 31 (8.20%) Big Data
3 31 (8.20%) Hadoop
4 30 (7.94%) Relational Database
5 24 (6.35%) Data Warehouse
6 20 (5.29%) NoSQL
6 20 (5.29%) Oracle Database
7 13 (3.44%) SQL Server Integration Services
7 13 (3.44%) SQL Server Reporting Services
8 12 (3.17%) OLTP
9 11 (2.91%) RDBMS
10 10 (2.65%) Power BI
11 7 (1.85%) KDB
12 6 (1.59%) Amazon Redshift
12 6 (1.59%) Blockchain
12 6 (1.59%) Data Lake
12 6 (1.59%) Redis
13 5 (1.32%) MongoDB
13 5 (1.32%) PostgreSQL
Development Applications
1 25 (6.61%) Git (software)
2 24 (6.35%) JIRA
3 17 (4.50%) Bitbucket
4 12 (3.17%) ERwin
5 11 (2.91%) ER Studio
5 11 (2.91%) Jenkins
5 11 (2.91%) PowerDesigner
6 9 (2.38%) Hudson
7 6 (1.59%) Cucumber
8 4 (1.06%) Eclipse
8 4 (1.06%) Maven
8 4 (1.06%) NetBeans
8 4 (1.06%) Sonatype Nexus
8 4 (1.06%) Subversion
8 4 (1.06%) Team Foundation Server
8 4 (1.06%) TeamCity
8 4 (1.06%) Visual Studio
9 3 (0.79%) SonarQube
10 2 (0.53%) Artifactory
10 2 (0.53%) gulp
General
1 183 (48.41%) Finance
2 44 (11.64%) Banking
3 33 (8.73%) Front Office
4 28 (7.41%) Investment Banking
5 10 (2.65%) Advertising
5 10 (2.65%) Legal
6 6 (1.59%) Financial Institution
7 5 (1.32%) Back Office
8 3 (0.79%) International Banking
8 3 (0.79%) Law
8 3 (0.79%) Marketing
8 3 (0.79%) Retail
9 2 (0.53%) Retail Banking
10 1 (0.26%) Telecoms
Job Titles
1 69 (18.25%) Developer
2 42 (11.11%) Analyst
3 39 (10.32%) DevOps Engineer
4 36 (9.52%) Administrator
5 35 (9.26%) Support Engineer
6 31 (8.20%) Support Analyst
7 29 (7.67%) Applications Support
8 25 (6.61%) Security Engineer
9 22 (5.82%) Python Engineer
10 21 (5.56%) Cybersecurity Engineer
10 21 (5.56%) Salesforce Administrator
11 19 (5.03%) Applications Engineer
11 19 (5.03%) Applications Support Engineer
12 18 (4.76%) QA Engineer
13 17 (4.50%) C++ Developer
13 17 (4.50%) Java Developer
14 16 (4.23%) Data Engineer
14 16 (4.23%) Python Developer
14 16 (4.23%) Unix Support
15 15 (3.97%) Linux/Unix DevOps
Libraries, Frameworks & Software Standards
1 48 (12.70%) XML
2 39 (10.32%) FIX Protocol
3 20 (5.29%) LDAP
4 19 (5.03%) Keras
4 19 (5.03%) Pandas
4 19 (5.03%) scikit-learn
4 19 (5.03%) TensorFlow
5 18 (4.76%) Regular Expression
6 16 (4.23%) GraphQL
7 15 (3.97%) .NET
7 15 (3.97%) Elastic Stack
7 15 (3.97%) HTML
7 15 (3.97%) JSON
8 14 (3.70%) SOAP
8 14 (3.70%) XSLT
9 12 (3.17%) J2EE
9 12 (3.17%) Node.js
9 12 (3.17%) Web Services
10 11 (2.91%) XML Schema
11 10 (2.65%) XSD
Miscellaneous
1 50 (13.23%) Analytical Skills
2 34 (8.99%) Fixed Income
3 28 (7.41%) Hedge funds
4 26 (6.88%) Linux Command Line
5 23 (6.08%) Equities
6 21 (5.56%) Algorithms
7 18 (4.76%) Data Structures
8 9 (2.38%) Enterprise Software
8 9 (2.38%) Foreign Exchange (FX)
8 9 (2.38%) Public Cloud
9 8 (2.12%) Greenfield Project
10 7 (1.85%) Derivative
10 7 (1.85%) User Experience
11 6 (1.59%) Management Information System
12 4 (1.06%) Exotic Derivative
12 4 (1.06%) Robotics
12 4 (1.06%) Virtual Team
13 3 (0.79%) Data Centre
13 3 (0.79%) Self-Motivation
14 2 (0.53%) Cyberthreat
Operating Systems
1 238 (62.96%) Linux
2 123 (32.54%) Windows
3 17 (4.50%) Red Hat Enterprise Linux
4 16 (4.23%) Solaris
5 9 (2.38%) Windows Server
6 6 (1.59%) Mac OS
7 5 (1.32%) Windows Server 2008
7 5 (1.32%) Windows Server 2012
8 3 (0.79%) Data ONTAP
8 3 (0.79%) Debian
8 3 (0.79%) Ubuntu
9 2 (0.53%) Windows Server 2003
10 1 (0.26%) AIX
10 1 (0.26%) Mac OS X
10 1 (0.26%) SmartOS
10 1 (0.26%) VyOS
Processes & Methodologies
1 77 (20.37%) DevOps
2 66 (17.46%) Problem-Solving
3 44 (11.64%) Computer Science
4 38 (10.05%) Analytics
5 31 (8.20%) Machine Learning
6 30 (7.94%) Agile Software Development
7 29 (7.67%) Cybersecurity
8 28 (7.41%) SDLC
8 28 (7.41%) Security Operations
9 27 (7.14%) Identity Access Management
9 27 (7.14%) Information Security
9 27 (7.14%) Workflow
10 26 (6.88%) CRM
10 26 (6.88%) Fintech
10 26 (6.88%) SIEM
10 26 (6.88%) Storage Management
11 24 (6.35%) Infrastructure as Code
11 24 (6.35%) Mathematics
11 24 (6.35%) Threat Modelling
12 23 (6.08%) Secure Coding
Programming Languages
1 150 (39.68%) SQL
2 146 (38.62%) Python
3 95 (25.13%) Java
4 57 (15.08%) Bash Shell
5 50 (13.23%) C++
6 45 (11.90%) JavaScript
7 29 (7.67%) C#
7 29 (7.67%) Shell Script
8 26 (6.88%) Perl
9 23 (6.08%) Scala
10 17 (4.50%) TypeScript
11 12 (3.17%) VB
12 11 (2.91%) PowerShell
13 9 (2.38%) Bourne shell
13 9 (2.38%) C-shell
13 9 (2.38%) Korn
13 9 (2.38%) Ruby
14 8 (2.12%) PL/SQL
15 7 (1.85%) PHP
16 5 (1.32%) T-SQL
Qualifications
1 75 (19.84%) Degree
2 19 (5.03%) Master's Degree
3 15 (3.97%) PhD
4 10 (2.65%) Computer Science Degree
5 3 (0.79%) CISSP
5 3 (0.79%) MCP
5 3 (0.79%) Microsoft Certification
6 2 (0.53%) AWS Certification
7 1 (0.26%) CCNA
7 1 (0.26%) CCNP
7 1 (0.26%) Cisco Certification
7 1 (0.26%) CISM
7 1 (0.26%) DV Cleared
7 1 (0.26%) GIAC
7 1 (0.26%) ISTQB
7 1 (0.26%) SANS
7 1 (0.26%) Security Cleared
Quality Assurance & Compliance
1 25 (6.61%) QA
2 15 (3.97%) SLA
3 11 (2.91%) GDPR
4 8 (2.12%) Solvency II
5 2 (0.53%) Data Quality
6 1 (0.26%) COBIT
6 1 (0.26%) Sarbanes-Oxley
System Software
1 52 (13.76%) Docker
2 10 (2.65%) VMware Infrastructure
3 9 (2.38%) Cronacle
3 9 (2.38%) Veritas File System
3 9 (2.38%) Veritas Volume Manager
4 8 (2.12%) Active Directory
5 3 (0.79%) NFS
5 3 (0.79%) Virtual Machines
6 2 (0.53%) HDFS
6 2 (0.53%) ProxySG
6 2 (0.53%) VMware ESXi
6 2 (0.53%) VMware Workstation
6 2 (0.53%) Xen
6 2 (0.53%) XenApp
7 1 (0.26%) Apache Flume
7 1 (0.26%) Postfix
7 1 (0.26%) vSphere
7 1 (0.26%) zsh
Systems Management
1 49 (12.96%) Kubernetes
2 36 (9.52%) Ansible
3 24 (6.35%) Puppet
4 22 (5.82%) Terraform
5 17 (4.50%) Consul
6 15 (3.97%) Opscode Chef
7 14 (3.70%) ITRS Geneos
8 13 (3.44%) Kibana
8 13 (3.44%) Prometheus
9 4 (1.06%) Nagios
9 4 (1.06%) NetBackup
9 4 (1.06%) Salt
10 3 (0.79%) Data Guard
10 3 (0.79%) Grafana
10 3 (0.79%) Red Hat Satellite
11 2 (0.53%) McAfee ePO
11 2 (0.53%) SCCM
11 2 (0.53%) SCOM
12 1 (0.26%) CFEngine
12 1 (0.26%) Control-M
Vendors
1 68 (17.99%) Oracle
2 33 (8.73%) Google
3 27 (7.14%) Red Hat
4 24 (6.35%) Microsoft
4 24 (6.35%) VMware
5 23 (6.08%) CyberArk
5 23 (6.08%) Salesforce.com
6 19 (5.03%) Sybase
7 14 (3.70%) Cisco
8 13 (3.44%) Veritas
9 11 (2.91%) Splunk
10 8 (2.12%) GoldenSource
11 7 (1.85%) Teradata
12 6 (1.59%) MuleSoft
13 5 (1.32%) Citrix
13 5 (1.32%) NetApp
13 5 (1.32%) ServiceNow
14 4 (1.06%) Infragistics
14 4 (1.06%) McAfee
14 4 (1.06%) webMethods