Period
to 21 October 2018

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 October 2018 with a comparison to the same period in the previous 2 years.

Unix
Central London > City of London
6 months to
21 Oct 2018
Same period 2017 Same period 2016
Rank 92 44 38
Rank change year-on-year -48 -6 -16
Permanent jobs citing Unix 381 550 705
As % of all permanent IT jobs advertised in the City of London 3.45% 5.53% 5.90%
As % of the Operating Systems category 15.44% 23.02% 23.63%
Number of salaries quoted 338 488 637
City of London median annual salary £70,000 £65,000 £65,000
Median salary % change year-on-year +7.69% - +8.33%
10th Percentile £46,500 £41,250 £38,184
90th Percentile £99,125 £95,000 £110,000
Central London median annual salary £70,000 £65,000 £62,500
% change year-on-year +7.69% +4.00% +4.17%

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 2,467 2,389 2,984
As % of all permanent IT jobs advertised in the City of London 22.32% 24.03% 24.99%
Number of salaries quoted 2,190 2,156 2,699
City of London median annual salary £60,000 £55,000 £55,000
Median salary % change year-on-year +9.09% - +4.76%
10th Percentile £28,975 £30,750 £31,000
90th Percentile £91,250 £86,250 £85,000
Central London median annual salary £58,000 £55,000 £53,500
% change year-on-year +5.45% +2.80% +1.90%

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 October 2018.

Salary histogram for Unix in the City of London

For the 6 months to 21 October 2018, 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.

1 260 (68.24%) Linux
2 239 (62.73%) Finance
3 159 (41.73%) Python
4 144 (37.80%) SQL
5 112 (29.40%) Java
6 103 (27.03%) Windows
7 90 (23.62%) Banking
8 84 (22.05%) Oracle
9 70 (18.37%) Shell Script
9 70 (18.37%) Degree
10 68 (17.85%) Perl
11 63 (16.54%) Agile Software Development
12 62 (16.27%) Computer Science
12 62 (16.27%) DevOps
13 58 (15.22%) Bash Shell
14 54 (14.17%) C++
15 49 (12.86%) FIX Protocol
16 48 (12.60%) Problem-Solving
17 45 (11.81%) Firewall
18 44 (11.55%) Open Source
19 43 (11.29%) SQL Server
20 41 (10.76%) Front Office
20 41 (10.76%) Microsoft
21 40 (10.50%) Active Directory
21 40 (10.50%) Computer Science Degree
22 37 (9.71%) JavaScript
22 37 (9.71%) Amazon AWS
23 35 (9.19%) Git (software)
23 35 (9.19%) Red Hat
23 35 (9.19%) Advertising

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 21 (5.51%) Tomcat
2 20 (5.25%) Apache
3 19 (4.99%) Apache Spark
4 6 (1.57%) Oracle Workflow
5 5 (1.31%) JBoss
5 5 (1.31%) SAS
6 4 (1.05%) Confluence
6 4 (1.05%) nginx
6 4 (1.05%) OpenStack
7 3 (0.79%) GlassFish
7 3 (0.79%) IIS
8 2 (0.52%) CMS
8 2 (0.52%) Ethereum
8 2 (0.52%) MS Exchange
8 2 (0.52%) WebSphere
9 1 (0.26%) BizTalk Server
9 1 (0.26%) Exchange Server 2013
9 1 (0.26%) MQSeries
9 1 (0.26%) Oracle HTTP Server
9 1 (0.26%) SharePoint
Applications
1 5 (1.31%) Microsoft Excel
2 4 (1.05%) Microsoft Office
3 3 (0.79%) Microsoft PowerPoint
3 3 (0.79%) MS Visio
3 3 (0.79%) Spreadsheet
Business Applications
1 3 (0.79%) Salerio
2 2 (0.52%) Dynamics CRM
2 2 (0.52%) Sentinel
3 1 (0.26%) Actimize
3 1 (0.26%) BusinessWorks
3 1 (0.26%) Infor M3
3 1 (0.26%) Kondor
Cloud Services
1 37 (9.71%) Amazon AWS
2 24 (6.30%) Microsoft Azure
3 7 (1.84%) Cloud Computing
4 6 (1.57%) PaaS
5 5 (1.31%) IaaS
6 4 (1.05%) Office 365
7 3 (0.79%) Google Cloud Platform
7 3 (0.79%) SaaS
8 2 (0.52%) Datadog
8 2 (0.52%) GitHub
8 2 (0.52%) IBM Cloud
8 2 (0.52%) SoftLayer
9 1 (0.26%) NuGet
9 1 (0.26%) Serverless
Communications & Networking
1 45 (11.81%) Firewall
2 32 (8.40%) TCP/IP
3 21 (5.51%) Cisco ASA
3 21 (5.51%) DNS
3 21 (5.51%) F5 BIG-IP GTM
3 21 (5.51%) F5 BIG-IP LTM
4 20 (5.25%) SNMP
5 17 (4.46%) HTTP
6 16 (4.20%) Internet
7 14 (3.67%) SSH
8 13 (3.41%) SAN
9 12 (3.15%) LAN
9 12 (3.15%) SMTP
9 12 (3.15%) WAN
10 11 (2.89%) Network Security
11 9 (2.36%) DHCP
11 9 (2.36%) Intrusion Detection
12 6 (1.57%) FTP
12 6 (1.57%) SMS
13 5 (1.31%) Cisco IOS
Database & Business Intelligence
1 43 (11.29%) SQL Server
2 23 (6.04%) Data Warehouse
3 22 (5.77%) Relational Database
4 18 (4.72%) MySQL
5 15 (3.94%) BusinessObjects
5 15 (3.94%) KDB
6 14 (3.67%) Big Data
6 14 (3.67%) NoSQL
7 13 (3.41%) Hadoop
7 13 (3.41%) PostgreSQL
8 12 (3.15%) QlikView
8 12 (3.15%) SQL Server Integration Services
9 10 (2.62%) Oracle Database
10 8 (2.10%) Apache Cassandra
10 8 (2.10%) Apache Hive
11 7 (1.84%) Blockchain
11 7 (1.84%) Oracle Reports
11 7 (1.84%) RDBMS
11 7 (1.84%) SQL Server Reporting Services
12 6 (1.57%) SAP HANA
Development Applications
1 35 (9.19%) Git (software)
2 23 (6.04%) Jenkins
3 22 (5.77%) Maven
4 13 (3.41%) JIRA
5 12 (3.15%) Subversion
6 10 (2.62%) Gradle
6 10 (2.62%) Hudson
7 6 (1.57%) Cucumber
8 5 (1.31%) GitLab
8 5 (1.31%) Metasploit
9 4 (1.05%) Atlassian Bamboo
9 4 (1.05%) Eclipse
9 4 (1.05%) JMeter
9 4 (1.05%) LoadRunner
9 4 (1.05%) ProC
10 3 (0.79%) Emacs
10 3 (0.79%) TeamCity
11 2 (0.52%) JIRA Agile
11 2 (0.52%) Phabricator
11 2 (0.52%) WebDriver
General
1 239 (62.73%) Finance
2 90 (23.62%) Banking
3 41 (10.76%) Front Office
4 35 (9.19%) Advertising
5 27 (7.09%) Financial Institution
6 21 (5.51%) Back Office
7 16 (4.20%) Investment Banking
8 6 (1.57%) Law
8 6 (1.57%) Marketing
8 6 (1.57%) Telecoms
9 3 (0.79%) Games
9 3 (0.79%) Retail
10 2 (0.52%) Prime Brokerage
10 2 (0.52%) Spanish Language
10 2 (0.52%) Synthetic Prime Brokerage
11 1 (0.26%) Retail Banking
11 1 (0.26%) Wholesale Banking
Job Titles
1 93 (24.41%) Developer
2 79 (20.73%) Analyst
3 42 (11.02%) Support Analyst
4 39 (10.24%) Applications Support
5 38 (9.97%) Administrator
6 31 (8.14%) Systems Administrator
7 29 (7.61%) C++ Developer
8 27 (7.09%) Linux Administrator
9 26 (6.82%) Applications Support Analyst
9 26 (6.82%) Linux Systems Administrator
10 25 (6.56%) Java Developer
11 21 (5.51%) Network Engineer
12 17 (4.46%) DevOps Engineer
13 16 (4.20%) Senior Developer
14 12 (3.15%) Python Developer
14 12 (3.15%) QA Engineer
15 11 (2.89%) Business Analyst
15 11 (2.89%) Infrastructure Engineer
16 10 (2.62%) Systems Analyst
16 10 (2.62%) Systems Engineer
Libraries, Frameworks & Software Standards
1 49 (12.86%) FIX Protocol
2 29 (7.61%) Web Services
3 25 (6.56%) .NET
4 24 (6.30%) Kafka
5 22 (5.77%) Spring
6 21 (5.51%) XML
7 20 (5.25%) 802.1X
8 17 (4.46%) LDAP
8 17 (4.46%) Middleware
9 14 (3.67%) JSON
10 12 (3.15%) Spring Boot
11 11 (2.89%) Elastic Stack
11 11 (2.89%) HTML
11 11 (2.89%) XML Schema
12 10 (2.62%) Django
12 10 (2.62%) Hibernate
13 9 (2.36%) Java SE
13 9 (2.36%) React
13 9 (2.36%) REST
13 9 (2.36%) STL
Miscellaneous
1 62 (16.27%) Computer Science
2 31 (8.14%) Analytical Skills
3 28 (7.35%) Equities
4 27 (7.09%) Foreign Exchange (FX)
5 26 (6.82%) Fintech
6 25 (6.56%) Fixed Income
7 24 (6.30%) Derivative
8 21 (5.51%) Management Information System
9 20 (5.25%) Algorithms
10 14 (3.67%) Greenfield Project
11 13 (3.41%) Hedge funds
11 13 (3.41%) SWIFT
12 10 (2.62%) Linux Command Line
13 9 (2.36%) Data Structures
14 7 (1.84%) Cyber Kill Chain
15 6 (1.57%) Data Centre
15 6 (1.57%) Equity Derivative
15 6 (1.57%) Reference Data
16 5 (1.31%) Credit Risk
16 5 (1.31%) Market Risk
Operating Systems
1 260 (68.24%) Linux
2 103 (27.03%) Windows
3 26 (6.82%) Red Hat Enterprise Linux
4 24 (6.30%) Solaris
5 18 (4.72%) CentOS
6 17 (4.46%) Windows Server
7 13 (3.41%) HPUX
8 12 (3.15%) AIX
9 9 (2.36%) Windows Server 2008
9 9 (2.36%) Windows Server 2012
10 7 (1.84%) Windows Server 2003
10 7 (1.84%) Windows XP
11 5 (1.31%) Debian
11 5 (1.31%) Ubuntu
12 4 (1.05%) Mac OS X
13 3 (0.79%) Android
13 3 (0.79%) Apple iOS
14 2 (0.52%) Fedora
14 2 (0.52%) Kali Linux
14 2 (0.52%) zOS
Processes & Methodologies
1 63 (16.54%) Agile Software Development
2 62 (16.27%) DevOps
3 48 (12.60%) Problem-Solving
4 44 (11.55%) Open Source
5 34 (8.92%) Mathematics
6 31 (8.14%) Continuous Improvement
7 30 (7.87%) ITIL
7 30 (7.87%) Test Automation
8 29 (7.61%) Configuration Management
9 27 (7.09%) Root Cause Analysis
10 26 (6.82%) Continuous Integration
10 26 (6.82%) Low Latency
11 25 (6.56%) Project Management
11 25 (6.56%) SDLC
12 24 (6.30%) Information Security
12 24 (6.30%) TDD
13 22 (5.77%) Migration
13 22 (5.77%) OO
13 22 (5.77%) Stakeholder Engagement
14 21 (5.51%) Time Management
Programming Languages
1 159 (41.73%) Python
2 144 (37.80%) SQL
3 112 (29.40%) Java
4 70 (18.37%) Shell Script
5 68 (17.85%) Perl
6 58 (15.22%) Bash Shell
7 54 (14.17%) C++
8 37 (9.71%) JavaScript
9 31 (8.14%) PowerShell
10 29 (7.61%) Scala
11 27 (7.09%) C#
12 24 (6.30%) C
13 21 (5.51%) PL/SQL
14 16 (4.20%) Ruby
14 16 (4.20%) VB
15 12 (3.15%) Java 8
16 10 (2.62%) Korn
17 7 (1.84%) T-SQL
18 6 (1.57%) PHP
18 6 (1.57%) R
Qualifications
1 70 (18.37%) Degree
2 40 (10.50%) Computer Science Degree
3 23 (6.04%) CCNP
3 23 (6.04%) Cisco Certification
4 21 (5.51%) CCIE
5 11 (2.89%) CISM
5 11 (2.89%) CISSP
6 6 (1.57%) VERITAS Certified Professional (VCP)
6 6 (1.57%) VMware Certified Professional (VCP)
7 5 (1.31%) Numerate Degree
8 4 (1.05%) ITIL Foundation Certificate
8 4 (1.05%) Master's Degree
8 4 (1.05%) MCSA
8 4 (1.05%) Microsoft Certification
8 4 (1.05%) RHCE
8 4 (1.05%) Security Cleared
9 3 (0.79%) CCNA
9 3 (0.79%) CEH
9 3 (0.79%) ISEB
9 3 (0.79%) SC Cleared
Quality Assurance & Compliance
1 25 (6.56%) QA
2 9 (2.36%) Data Quality
3 8 (2.10%) ISO 20022
3 8 (2.10%) SEPA
4 3 (0.79%) COBIT
4 3 (0.79%) MiFID
5 2 (0.52%) Sarbanes-Oxley
5 2 (0.52%) Solvency II
6 1 (0.26%) ISO/IEC 27001
6 1 (0.26%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
6 1 (0.26%) SLA
System Software
1 40 (10.50%) Active Directory
2 20 (5.25%) Docker
2 20 (5.25%) VMware Infrastructure
3 9 (2.36%) Hyper-V
4 7 (1.84%) KVM
4 7 (1.84%) Veritas Cluster Server
5 6 (1.57%) LXC
6 5 (1.31%) HDFS
7 4 (1.05%) Oracle RAC
8 3 (0.79%) NFS
8 3 (0.79%) Virtual Machines
8 3 (0.79%) VirtualBox
8 3 (0.79%) Xen
8 3 (0.79%) XenServer
8 3 (0.79%) zsh
9 2 (0.52%) Firmware
9 2 (0.52%) GlusterFS
9 2 (0.52%) iptables
9 2 (0.52%) Virtual Servers
9 2 (0.52%) VMware ESXi
Systems Management
1 31 (8.14%) Puppet
2 21 (5.51%) Ansible
3 18 (4.72%) Opscode Chef
4 13 (3.41%) Nagios
5 11 (2.89%) Kubernetes
5 11 (2.89%) Terraform
6 5 (1.31%) CFEngine
6 5 (1.31%) Docker Swarm
6 5 (1.31%) Nessus
6 5 (1.31%) Network Intrusion Detection System
6 5 (1.31%) OpenVAS
6 5 (1.31%) QRadar
6 5 (1.31%) SCCM
6 5 (1.31%) SCOM
7 4 (1.05%) Control-M
8 3 (0.79%) Data Guard
8 3 (0.79%) ITRS Geneos
8 3 (0.79%) logstash
8 3 (0.79%) Salt
8 3 (0.79%) ZABBIX
Vendors
1 84 (22.05%) Oracle
2 41 (10.76%) Microsoft
3 35 (9.19%) Red Hat
4 33 (8.66%) Cisco
4 33 (8.66%) VMware
5 31 (8.14%) Sybase
6 26 (6.82%) Palo Alto
7 22 (5.77%) F5
8 21 (5.51%) CheckPoint
9 15 (3.94%) Sun
10 14 (3.67%) Citrix
11 12 (3.15%) Tableau
12 11 (2.89%) SAP
13 9 (2.36%) Splunk
13 9 (2.36%) Veritas
14 8 (2.10%) Bloomberg
15 7 (1.84%) Google
15 7 (1.84%) Reuters
16 5 (1.31%) Qualys
16 5 (1.31%) Rapid7