Period
to 12 November 2018

The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for SSL skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited SSL over the 6 months to 12 November 2018 with a comparison to the same period in the previous 2 years.

Secure Socket Layer (SSL)
Central London > City of London
6 months to
12 Nov 2018
Same period 2017 Same period 2016
Rank 315 297 283
Rank change year-on-year -18 -14 +52
Permanent jobs citing SSL 36 38 71
As % of all permanent IT jobs advertised in the City of London 0.32% 0.38% 0.61%
As % of the Communications & Networking category 2.47% 2.56% 3.97%
Number of salaries quoted 33 34 67
City of London median annual salary £50,000 £57,500 £60,000
Median salary % change year-on-year -13.04% -4.17% +9.09%
10th Percentile £38,491 £46,250 £44,750
90th Percentile £82,750 £90,000 £76,250
Central London median annual salary £50,000 £55,000 £60,000
% change year-on-year -9.09% -8.33% +6.67%

SSL is in the Communications and Computer Networking 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 communications or computer networking skills.

All Communications and Computer Networking Skills
City of London
Permanent vacancies with a requirement for communications or computer networking skills 1,456 1,485 1,787
As % of all permanent IT jobs advertised in the City of London 13.14% 14.70% 15.26%
Number of salaries quoted 1,288 1,323 1,569
City of London median annual salary £55,000 £53,000 £55,000
Median salary % change year-on-year +3.77% -3.64% +4.76%
10th Percentile £31,250 £31,250 £31,250
90th Percentile £87,500 £80,000 £78,750
Central London median annual salary £55,000 £52,500 £52,500
% change year-on-year +4.76% - +5.00%

SSL
Job Vacancy Trend in the City of London

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

Job vacancy trend for SSL in the City of London

SSL
Salary Trend in the City of London

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

Salary trend for SSL in the City of London

SSL
Salary Histogram in the City of London

The salary distribution of IT jobs citing SSL in the City of London over the 6 months to 12 November 2018.

Salary histogram for SSL in the City of London

For the 6 months to 12 November 2018, IT jobs citing SSL 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 SSL.

1 22 (61.11%) Firewall
2 18 (50.00%) Windows
3 17 (47.22%) DNS
4 15 (41.67%) SQL Server
4 15 (41.67%) SQL
5 14 (38.89%) Microsoft
5 14 (38.89%) Active Directory
6 13 (36.11%) TCP/IP
7 12 (33.33%) Linux
7 12 (33.33%) Microsoft Azure
8 11 (30.56%) Ansible
8 11 (30.56%) Apache
8 11 (30.56%) HTTP
8 11 (30.56%) VPN
9 10 (27.78%) Cisco
9 10 (27.78%) Service Management
9 10 (27.78%) Amazon AWS
9 10 (27.78%) Continuous Improvement
10 9 (25.00%) Puppet
10 9 (25.00%) PowerShell
10 9 (25.00%) Opscode Chef
10 9 (25.00%) Cybersecurity
10 9 (25.00%) Windows Server
10 9 (25.00%) Finance
10 9 (25.00%) Java
10 9 (25.00%) Problem-Solving
11 8 (22.22%) Self-Motivation
11 8 (22.22%) GDPR
11 8 (22.22%) Cyber Essentials
11 8 (22.22%) Tomcat

SSL
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 11 (30.56%) Apache
2 8 (22.22%) Tomcat
3 7 (19.44%) Apache Solr
4 5 (13.89%) Skype for Business
5 2 (5.56%) IIS
5 2 (5.56%) MS Exchange
5 2 (5.56%) Office Communications Server
5 2 (5.56%) SharePoint
6 1 (2.78%) nginx
6 1 (2.78%) OpenStack
Applications
1 2 (5.56%) Microsoft Excel
1 2 (5.56%) Microsoft Office
1 2 (5.56%) Microsoft PowerPoint
Business Applications
1 1 (2.78%) Dynamics CRM
Cloud Services
1 12 (33.33%) Microsoft Azure
2 10 (27.78%) Amazon AWS
3 8 (22.22%) SaaS
4 4 (11.11%) Amazon EC2
5 3 (8.33%) Office 365
6 2 (5.56%) IaaS
6 2 (5.56%) PaaS
6 2 (5.56%) Slack
Communications & Networking
1 22 (61.11%) Firewall
2 17 (47.22%) DNS
3 13 (36.11%) TCP/IP
4 11 (30.56%) HTTP
4 11 (30.56%) VPN
5 8 (22.22%) VLAN
6 6 (16.67%) Internet
6 6 (16.67%) LAN
6 6 (16.67%) WAN
7 5 (13.89%) MPLS
7 5 (13.89%) Wireless
8 4 (11.11%) Cisco IOS
8 4 (11.11%) IPsec
8 4 (11.11%) Kerberos
8 4 (11.11%) Network Security
9 3 (8.33%) EIGRP
9 3 (8.33%) FTP
9 3 (8.33%) Skype
9 3 (8.33%) VPLS
10 2 (5.56%) WLAN
Database & Business Intelligence
1 15 (41.67%) SQL Server
2 7 (19.44%) MySQL
3 4 (11.11%) Apache Cassandra
3 4 (11.11%) Apache Hive
3 4 (11.11%) HBase
3 4 (11.11%) MariaDB
3 4 (11.11%) Scylla
3 4 (11.11%) SQL Server 2012
3 4 (11.11%) SQL Server 2016
4 3 (8.33%) PostgreSQL
5 1 (2.78%) Big Data
Development Applications
1 2 (5.56%) Git (software)
1 2 (5.56%) webpack
2 1 (2.78%) Mocha
2 1 (2.78%) NUnit
2 1 (2.78%) Selenium
General
1 9 (25.00%) Finance
2 4 (11.11%) Advertising
2 4 (11.11%) Banking
2 4 (11.11%) Marketing
2 4 (11.11%) Telecoms
3 2 (5.56%) Retail
Job Titles
1 10 (27.78%) Support Engineer
2 9 (25.00%) Web Engineer
3 8 (22.22%) Applications Engineer
3 8 (22.22%) Applications Support
3 8 (22.22%) Applications Support Engineer
3 8 (22.22%) Web Applications Engineer
3 8 (22.22%) Web Applications Support
3 8 (22.22%) Web Support Engineer
4 5 (13.89%) Infrastructure Engineer
5 4 (11.11%) 3rd Line Engineer
5 4 (11.11%) 3rd Line Support
5 4 (11.11%) 3rd Line Support Engineer
5 4 (11.11%) Developer
5 4 (11.11%) Full Stack Developer
5 4 (11.11%) Monitoring Engineer
5 4 (11.11%) Network Engineer
6 3 (8.33%) Analyst
6 3 (8.33%) Architect
6 3 (8.33%) Security Engineer
7 2 (5.56%) Desktop Support
Libraries, Frameworks & Software Standards
1 7 (19.44%) LDAP
2 6 (16.67%) HTML
3 5 (13.89%) REST
4 4 (11.11%) CSS
4 4 (11.11%) Django
4 4 (11.11%) Kafka
4 4 (11.11%) Vue.js
5 3 (8.33%) .NET
5 3 (8.33%) Sass
6 2 (5.56%) .NET Framework
6 2 (5.56%) ASP.NET
6 2 (5.56%) ASP.NET MVC
6 2 (5.56%) LAMP
6 2 (5.56%) Twitter Bootstrap
7 1 (2.78%) 802.1X
7 1 (2.78%) JDBC
7 1 (2.78%) ODBC
7 1 (2.78%) SAML
7 1 (2.78%) Web Services
7 1 (2.78%) XML
Miscellaneous
1 8 (22.22%) Data Centre
1 8 (22.22%) Self-Motivation
2 5 (13.89%) Public Cloud
3 4 (11.11%) Fintech
4 3 (8.33%) Analytical Skills
4 3 (8.33%) Video Conferencing
5 2 (5.56%) Clustering
5 2 (5.56%) Distributed Denial-of-Service
5 2 (5.56%) Management Information System
6 1 (2.78%) BYOD
6 1 (2.78%) CMDB
Operating Systems
1 18 (50.00%) Windows
2 12 (33.33%) Linux
3 9 (25.00%) Windows Server
4 4 (11.11%) CentOS
4 4 (11.11%) Red Hat Enterprise Linux
5 3 (8.33%) Android
6 2 (5.56%) Windows 10
6 2 (5.56%) Windows 7
7 1 (2.78%) Debian
7 1 (2.78%) Unix
7 1 (2.78%) VMS
Processes & Methodologies
1 10 (27.78%) Continuous Improvement
1 10 (27.78%) Service Management
2 9 (25.00%) Cybersecurity
2 9 (25.00%) Problem-Solving
3 8 (22.22%) DevOps
3 8 (22.22%) Performance Monitoring
3 8 (22.22%) Performance Tuning
3 8 (22.22%) Technical Analysis
3 8 (22.22%) Web Application Development
4 7 (19.44%) ITIL
5 6 (16.67%) Configuration Management
6 5 (13.89%) Load Balancing
6 5 (13.89%) Presales
7 4 (11.11%) Customer Requirements
7 4 (11.11%) Front End Development
7 4 (11.11%) Infrastructure Engineering
7 4 (11.11%) Infrastructure Monitoring
7 4 (11.11%) Task Automation
7 4 (11.11%) Virtual Infrastructure
7 4 (11.11%) Web Development
Programming Languages
1 15 (41.67%) SQL
2 9 (25.00%) Java
2 9 (25.00%) PowerShell
3 7 (19.44%) Python
4 5 (13.89%) JavaScript
4 5 (13.89%) T-SQL
5 3 (8.33%) Bash Shell
5 3 (8.33%) C#
6 2 (5.56%) Ruby
7 1 (2.78%) PHP
7 1 (2.78%) Scala
Qualifications
1 6 (16.67%) Cisco Certification
2 4 (11.11%) CCNA
2 4 (11.11%) CCNP
3 2 (5.56%) CCVP
4 1 (2.78%) CCSP
Quality Assurance & Compliance
1 8 (22.22%) Cyber Essentials
1 8 (22.22%) GDPR
1 8 (22.22%) HIPAA
1 8 (22.22%) ISO/IEC 27001
2 4 (11.11%) QA
System Software
1 14 (38.89%) Active Directory
2 5 (13.89%) Hyper-V
2 5 (13.89%) VMware Infrastructure
3 4 (11.11%) HDFS
4 3 (8.33%) Apache ZooKeeper
5 2 (5.56%) Docker
6 1 (2.78%) KVM
6 1 (2.78%) PowerDNS
6 1 (2.78%) QEMU
6 1 (2.78%) VMware ESXi
6 1 (2.78%) VMware Workstation
6 1 (2.78%) Xen
6 1 (2.78%) XenApp
6 1 (2.78%) XenServer
Systems Management
1 11 (30.56%) Ansible
2 9 (25.00%) Opscode Chef
2 9 (25.00%) Puppet
3 5 (13.89%) Nagios
4 4 (11.11%) Oozie
4 4 (11.11%) SCOM
5 2 (5.56%) Kubernetes
5 2 (5.56%) Microsoft Clustering
5 2 (5.56%) NetBackup
6 1 (2.78%) Backup Exec
6 1 (2.78%) Grafana
6 1 (2.78%) Prometheus
6 1 (2.78%) Single Sign-On
Vendors
1 14 (38.89%) Microsoft
2 10 (27.78%) Cisco
3 8 (22.22%) Splunk
4 6 (16.67%) VMware
5 4 (11.11%) Hortonworks
5 4 (11.11%) ServiceNow
6 3 (8.33%) Google
6 3 (8.33%) HP
7 2 (5.56%) AppDynamics
7 2 (5.56%) Apple
7 2 (5.56%) Blue Coat
7 2 (5.56%) CheckPoint
7 2 (5.56%) New Relic
7 2 (5.56%) Palo Alto
8 1 (2.78%) Citrix
8 1 (2.78%) ConnectWise
8 1 (2.78%) Juniper
8 1 (2.78%) SaltStack
8 1 (2.78%) Veritas