Period
to 18 November 2018

The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for Xen skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Xen over the 6 months to 18 November 2018 with a comparison to the same period in the previous 2 years.

Xen Project
Central London > City of London
6 months to
18 Nov 2018
Same period 2017 Same period 2016
Rank 338 314 336
Rank change year-on-year -24 +22 +60
Permanent jobs citing Xen 9 17 19
As % of all permanent IT jobs advertised in the City of London 0.081% 0.17% 0.16%
As % of the System Software category 0.52% 1.16% 1.36%
Number of salaries quoted 9 17 17
City of London median annual salary £95,000 £52,500 £65,000
Median salary % change year-on-year +80.95% -19.23% +30.00%
10th Percentile £51,250 £47,750 £45,000
90th Percentile £113,750 £80,250 £75,000
Central London median annual salary £82,500 £52,500 £65,000
% change year-on-year +57.14% -19.23% +30.00%

Xen is in the System Software 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 system software skills.

All System Software Skills
City of London
Permanent vacancies with a requirement for system software skills 1,733 1,465 1,394
As % of all permanent IT jobs advertised in the City of London 15.68% 14.38% 11.91%
Number of salaries quoted 1,585 1,355 1,268
City of London median annual salary £60,000 £55,000 £52,500
Median salary % change year-on-year +9.09% +4.76% +11.70%
10th Percentile £29,500 £30,000 £28,500
90th Percentile £95,000 £85,000 £78,750
Central London median annual salary £60,000 £55,000 £50,000
% change year-on-year +9.09% +10.00% +11.11%

Xen
Job Vacancy Trend in the City of London

Job postings citing Xen as a percentage of all IT jobs advertised in the City of London.

Job vacancy trend for Xen in the City of London

Xen
Salary Trend in the City of London

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

Salary trend for Xen in the City of London

Xen
Salary Histogram in the City of London

The salary distribution of IT jobs citing Xen in the City of London over the 6 months to 18 November 2018.

Salary histogram for Xen in the City of London

For the 6 months to 18 November 2018, IT jobs citing Xen 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 Xen.

1 9 (100.00%) Linux
2 8 (88.89%) KVM
3 6 (66.67%) Ansible
3 6 (66.67%) Puppet
3 6 (66.67%) Python
3 6 (66.67%) VMware
3 6 (66.67%) VMware Infrastructure
3 6 (66.67%) Amazon AWS
4 5 (55.56%) Docker
4 5 (55.56%) Kubernetes
5 4 (44.44%) QEMU
5 4 (44.44%) LEMP Stack
5 4 (44.44%) nginx
5 4 (44.44%) MySQL
6 3 (33.33%) Unix
6 3 (33.33%) Windows
6 3 (33.33%) Apache
6 3 (33.33%) Cisco
6 3 (33.33%) Video\Live Streaming
6 3 (33.33%) SaaS
6 3 (33.33%) Django
6 3 (33.33%) Varnish
6 3 (33.33%) Google
6 3 (33.33%) SQL
6 3 (33.33%) Server Virtualisation
6 3 (33.33%) Infrastructure Engineering
6 3 (33.33%) High Availability
6 3 (33.33%) IaaS
6 3 (33.33%) Opscode Chef
6 3 (33.33%) uWSGI

Xen
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 4 (44.44%) nginx
2 3 (33.33%) Apache
2 3 (33.33%) Elasticsearch
2 3 (33.33%) uWSGI
3 2 (22.22%) Apache Spark
3 2 (22.22%) OpenStack
Cloud Services
1 6 (66.67%) Amazon AWS
2 3 (33.33%) IaaS
2 3 (33.33%) SaaS
3 2 (22.22%) Microsoft Azure
4 1 (11.11%) Google Cloud Platform
4 1 (11.11%) PaaS
Communications & Networking
1 2 (22.22%) DNS
1 2 (22.22%) FCoE
1 2 (22.22%) Fibre Channel
1 2 (22.22%) Firewall
1 2 (22.22%) iSCSI
1 2 (22.22%) LAN
1 2 (22.22%) Multicast
1 2 (22.22%) NAS
1 2 (22.22%) SAN
1 2 (22.22%) WAN
2 1 (11.11%) SSL
2 1 (11.11%) VPN
Database & Business Intelligence
1 4 (44.44%) MySQL
2 2 (22.22%) Hadoop
2 2 (22.22%) SQL Server
3 1 (11.11%) PostgreSQL
Job Titles
1 3 (33.33%) Architect
2 2 (22.22%) Administrator
2 2 (22.22%) AWS Administrator
2 2 (22.22%) AWS DevOps
2 2 (22.22%) DevOps Administrator
2 2 (22.22%) Infrastructure Architect
2 2 (22.22%) Lead Architect
2 2 (22.22%) Lead DevOps
2 2 (22.22%) Lead Infrastructure Architect
2 2 (22.22%) Linux Engineer
2 2 (22.22%) Linux Systems Engineer
2 2 (22.22%) Systems Engineer
3 1 (11.11%) AWS Architect
3 1 (11.11%) Cloud Architect
3 1 (11.11%) IT Architect
3 1 (11.11%) IT Security Architect
3 1 (11.11%) Linux Systems Administrator
3 1 (11.11%) Security Architect
3 1 (11.11%) Systems Administration Leader
3 1 (11.11%) Technical Administrator
Libraries, Frameworks & Software Standards
1 4 (44.44%) LEMP Stack
2 3 (33.33%) Django
3 2 (22.22%) Spark Streaming
4 1 (11.11%) LAMP
4 1 (11.11%) LAPP Stack
4 1 (11.11%) Web Services
Miscellaneous
1 3 (33.33%) Video\Live Streaming
2 1 (11.11%) Computer Science
2 1 (11.11%) Data Centre
2 1 (11.11%) Distributed Denial-of-Service
Operating Systems
1 9 (100.00%) Linux
2 3 (33.33%) Unix
2 3 (33.33%) Windows
3 2 (22.22%) Solaris
4 1 (11.11%) Debian
4 1 (11.11%) MVS
Processes & Methodologies
1 3 (33.33%) High Availability
1 3 (33.33%) Infrastructure Engineering
1 3 (33.33%) Server Virtualisation
2 2 (22.22%) Artificial Intelligence
2 2 (22.22%) Auto-Scaling
2 2 (22.22%) Benchmarking
2 2 (22.22%) Data Science
2 2 (22.22%) DevOps
2 2 (22.22%) Microservices
2 2 (22.22%) Performance Tuning
2 2 (22.22%) Systems Engineering
2 2 (22.22%) Test Automation
3 1 (11.11%) Cybersecurity
3 1 (11.11%) DDoS Mitigation
3 1 (11.11%) Decision-Making
3 1 (11.11%) Network Segmentation
3 1 (11.11%) Risk Assessment
3 1 (11.11%) Storage Management
3 1 (11.11%) Systems Analysis
3 1 (11.11%) Use Case
Programming Languages
1 6 (66.67%) Python
2 3 (33.33%) SQL
3 2 (22.22%) C
3 2 (22.22%) Java
3 2 (22.22%) JavaScript
3 2 (22.22%) Scala
3 2 (22.22%) Shell Script
4 1 (11.11%) Bash Shell
Qualifications
1 1 (11.11%) Computer Science Degree
1 1 (11.11%) Degree
Quality Assurance & Compliance
1 1 (11.11%) COBIT
1 1 (11.11%) ISO/IEC 27001
1 1 (11.11%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
System Software
1 8 (88.89%) KVM
2 6 (66.67%) VMware Infrastructure
3 5 (55.56%) Docker
4 4 (44.44%) QEMU
5 3 (33.33%) Varnish
6 2 (22.22%) Hyper-V
6 2 (22.22%) NFS
6 2 (22.22%) SRDF
6 2 (22.22%) Virtual Machines
7 1 (11.11%) PowerDNS
7 1 (11.11%) VirtualBox
7 1 (11.11%) VMware ESXi
Systems Management
1 6 (66.67%) Ansible
1 6 (66.67%) Puppet
2 5 (55.56%) Kubernetes
3 3 (33.33%) HAProxy
3 3 (33.33%) Opscode Chef
4 2 (22.22%) Docker Swarm
4 2 (22.22%) Mesos
4 2 (22.22%) Red Hat Spacewalk
Vendors
1 6 (66.67%) VMware
2 3 (33.33%) Cisco
2 3 (33.33%) Google
3 2 (22.22%) Cloudera
3 2 (22.22%) EMC
3 2 (22.22%) Hortonworks
3 2 (22.22%) Intel
3 2 (22.22%) MapR
3 2 (22.22%) MuleSoft
3 2 (22.22%) NetApp
3 2 (22.22%) Oracle
4 1 (11.11%) Juniper
4 1 (11.11%) SaltStack