Period
to 19 November 2017

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 19 November 2017 with a comparison to the same period in the previous 2 years.

Secure Socket Layer (SSL)
Central London > City of London
6 months to
19 Nov 2017
Same period 2016 Same period 2015
Rank 284 275 335
Rank change year-on-year -9 +60 -17
Permanent jobs citing SSL 38 75 94
As % of all permanent IT jobs advertised in the City of London 0.38% 0.65% 0.55%
As % of the Communications & Networking category 2.56% 4.22% 3.81%
Number of salaries quoted 34 70 74
City of London median annual salary £58,750 £60,000 £55,000
Median salary % change year-on-year -2.08% +9.09% +15.79%
10th Percentile £46,250 £42,000 £40,000
90th Percentile £90,000 £76,250 £82,500
Central London median annual salary £55,000 £60,000 £55,000
% change year-on-year -8.33% +9.09% +15.79%

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 1486 1777 2467
As % of all permanent IT jobs advertised in the City of London 14.67% 15.28% 14.35%
Number of salaries quoted 1327 1559 2118
City of London median annual salary £53,250 £55,000 £52,500
Median salary % change year-on-year -3.18% +4.76% +5.00%
10th Percentile £31,250 £31,000 £27,500
90th Percentile £80,000 £78,750 £78,750
Central London median annual salary £52,500 £52,500 £50,000
% change year-on-year - +5.00% +2.04%

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 19 November 2017.

Salary histogram for SSL in the City of London

For the 6 months to 19 November 2017, IT jobs citing SSL also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the City of London region with a requirement for SSL.

1 20 (52.63%) Firewall
2 19 (50.00%) Windows
3 18 (47.37%) Windows Server
4 17 (44.74%) SQL
4 17 (44.74%) Active Directory
5 16 (42.11%) MySQL
6 14 (36.84%) Linux
6 14 (36.84%) Telecoms
6 14 (36.84%) VMware
6 14 (36.84%) VMware Infrastructure
7 13 (34.21%) MS Exchange
7 13 (34.21%) DNS
7 13 (34.21%) Internet
7 13 (34.21%) Public Cloud
8 12 (31.58%) SQL Server
8 12 (31.58%) Banking
9 11 (28.95%) VMware Workstation
9 11 (28.95%) T-SQL
9 11 (28.95%) IT Strategy
9 11 (28.95%) Runbook
9 11 (28.95%) Microsoft Azure
9 11 (28.95%) Office 365
9 11 (28.95%) Software Deployment
10 8 (21.05%) IPsec
10 8 (21.05%) Disaster Recovery
10 8 (21.05%) Java
10 8 (21.05%) FTP
10 8 (21.05%) Kerberos
11 7 (18.42%) Cisco
11 7 (18.42%) Finance

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 13 (34.21%) MS Exchange
2 6 (15.79%) IIS
3 1 (2.63%) Apache Solr
3 1 (2.63%) nginx
Applications
1 2 (5.26%) Microsoft Office
2 1 (2.63%) Microsoft Excel
2 1 (2.63%) Microsoft PowerPoint
2 1 (2.63%) MS Visio
Cloud Services
1 11 (28.95%) Microsoft Azure
1 11 (28.95%) Office 365
2 2 (5.26%) Cloud Computing
2 2 (5.26%) IaaS
2 2 (5.26%) PaaS
2 2 (5.26%) SaaS
3 1 (2.63%) Akamai
3 1 (2.63%) Amazon AWS
3 1 (2.63%) Amazon CloudWatch
3 1 (2.63%) Fastly
3 1 (2.63%) npm
Communications & Networking
1 20 (52.63%) Firewall
2 13 (34.21%) DNS
2 13 (34.21%) Internet
3 8 (21.05%) FTP
3 8 (21.05%) IPsec
3 8 (21.05%) Kerberos
4 5 (13.16%) LAN
4 5 (13.16%) VPN
4 5 (13.16%) WAN
4 5 (13.16%) Wireless
5 4 (10.53%) BGP
5 4 (10.53%) Cisco IOS
5 4 (10.53%) Network Security
6 3 (7.89%) Cisco Nexus
6 3 (7.89%) EIGRP
6 3 (7.89%) OSPF
6 3 (7.89%) TACACS
6 3 (7.89%) TCP/IP
6 3 (7.89%) VoIP
6 3 (7.89%) WLAN
Database & Business Intelligence
1 16 (42.11%) MySQL
2 12 (31.58%) SQL Server
3 1 (2.63%) Apache Hive
3 1 (2.63%) Big Data
3 1 (2.63%) Hadoop
3 1 (2.63%) HBase
3 1 (2.63%) MongoDB
3 1 (2.63%) Redis
Development Applications
1 1 (2.63%) Bower
1 1 (2.63%) Buildbot
1 1 (2.63%) CircleCI
1 1 (2.63%) Grunt
1 1 (2.63%) gulp
1 1 (2.63%) Jasmine
1 1 (2.63%) JSHint
1 1 (2.63%) Karma Test Runner
1 1 (2.63%) Maven
1 1 (2.63%) Protractor
1 1 (2.63%) QUnit
1 1 (2.63%) Selenium
1 1 (2.63%) Visual Studio
1 1 (2.63%) webpack
General
1 14 (36.84%) Telecoms
2 12 (31.58%) Banking
3 7 (18.42%) Finance
4 2 (5.26%) Legal
5 1 (2.63%) Publishing
Job Titles
1 11 (28.95%) Azure Engineer
1 11 (28.95%) Infrastructure Engineer
2 10 (26.32%) Team Leader
3 6 (15.79%) Support Team Leader
3 6 (15.79%) Technical Leader
4 5 (13.16%) Technical Support
4 5 (13.16%) Technical Support Team Leader
4 5 (13.16%) Technical Team Leader
5 4 (10.53%) Developer
5 4 (10.53%) DevOps Engineer
5 4 (10.53%) Support Engineer
6 3 (7.89%) IT Engineer
6 3 (7.89%) IT Infrastructure Engineer
6 3 (7.89%) Network Team Leader
6 3 (7.89%) Systems Engineer
7 2 (5.26%) Architect
7 2 (5.26%) Desktop Support
7 2 (5.26%) Network Engineer
7 2 (5.26%) Security Architect
7 2 (5.26%) Security Engineer
Libraries, Frameworks & Software Standards
1 6 (15.79%) Web Services
2 3 (7.89%) .NET
2 3 (7.89%) XMPP
3 2 (5.26%) OAuth
4 1 (2.63%) Ajax
4 1 (2.63%) AngularJS
4 1 (2.63%) Backbone.js
4 1 (2.63%) Compass CSS Framework
4 1 (2.63%) CSS3
4 1 (2.63%) DOM
4 1 (2.63%) Ember.js
4 1 (2.63%) HTML
4 1 (2.63%) HTML5
4 1 (2.63%) JSLint
4 1 (2.63%) JSON
4 1 (2.63%) Kafka
4 1 (2.63%) LESS
4 1 (2.63%) Memcached
4 1 (2.63%) REST
4 1 (2.63%) Sass
Miscellaneous
1 13 (34.21%) Public Cloud
2 3 (7.89%) Smartphone
3 2 (5.26%) Algorithms
3 2 (5.26%) Data Centre
3 2 (5.26%) Distributed Denial-of-Service
3 2 (5.26%) Private Cloud
3 2 (5.26%) Security Operations Centre
3 2 (5.26%) STB
3 2 (5.26%) Video Conferencing
4 1 (2.63%) Graphic Design
Operating Systems
1 19 (50.00%) Windows
2 18 (47.37%) Windows Server
3 14 (36.84%) Linux
4 1 (2.63%) Apple iOS
4 1 (2.63%) Unix
4 1 (2.63%) Windows 7
4 1 (2.63%) Windows Server 2008
4 1 (2.63%) Windows Server 2012
4 1 (2.63%) Windows Vista
Processes & Methodologies
1 11 (28.95%) IT Strategy
1 11 (28.95%) Runbook
1 11 (28.95%) Software Deployment
2 8 (21.05%) Disaster Recovery
3 6 (15.79%) Anti-Money Laundering
3 6 (15.79%) DevOps
3 6 (15.79%) Technical Analysis
4 5 (13.16%) Continuous Integration
4 5 (13.16%) Process Improvement
5 3 (7.89%) BCP
5 3 (7.89%) Business Continuity
5 3 (7.89%) Kalman Filter
5 3 (7.89%) Line Management
5 3 (7.89%) Network Monitoring
5 3 (7.89%) Resource Management
5 3 (7.89%) Security Operations
5 3 (7.89%) WAN Optimisation
5 3 (7.89%) Web Filtering
6 2 (5.26%) Data Encryption
6 2 (5.26%) Identity Access Management
Programming Languages
1 17 (44.74%) SQL
2 11 (28.95%) T-SQL
3 8 (21.05%) Java
4 6 (15.79%) C
4 6 (15.79%) PowerShell
4 6 (15.79%) Python
5 1 (2.63%) Bash Shell
5 1 (2.63%) C#
5 1 (2.63%) JavaScript
5 1 (2.63%) Tcl
Qualifications
1 3 (7.89%) Cisco Certification
1 3 (7.89%) MCSE
1 3 (7.89%) Microsoft Certification
2 2 (5.26%) CISSP
2 2 (5.26%) PMI Certification
2 2 (5.26%) PMP
3 1 (2.63%) CCIE
3 1 (2.63%) MCP
Quality Assurance & Compliance
1 4 (10.53%) SLA
2 2 (5.26%) GDPR
3 1 (2.63%) HL7
3 1 (2.63%) QA
System Software
1 17 (44.74%) Active Directory
2 14 (36.84%) VMware Infrastructure
3 11 (28.95%) VMware Workstation
4 1 (2.63%) Apache Flume
4 1 (2.63%) Docker
4 1 (2.63%) HDFS
4 1 (2.63%) KVM
4 1 (2.63%) Varnish
Systems Management
1 3 (7.89%) Cisco CUCM
1 3 (7.89%) Nagios
2 1 (2.63%) Grafana
2 1 (2.63%) Graphite
2 1 (2.63%) Norton AntiVirus
2 1 (2.63%) Oozie
2 1 (2.63%) Terraform
Vendors
1 14 (36.84%) VMware
2 7 (18.42%) Cisco
3 5 (13.16%) Palo Alto
4 4 (10.53%) Avaya
4 4 (10.53%) Microsoft
5 3 (7.89%) ForeScout
5 3 (7.89%) Riverbed
5 3 (7.89%) SolarWinds
5 3 (7.89%) Symantec
6 2 (5.26%) CheckPoint
6 2 (5.26%) Citrix
6 2 (5.26%) Cognos
6 2 (5.26%) Red Box
7 1 (2.63%) Apple
7 1 (2.63%) LANDesk