The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for SSL skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited SSL over the 3 months to 27 June 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Secure Socket Layer (SSL)
London / City of London
3 months to
27 Jun 2017
Same period 2016 Same period 2015
Rank 142 146 155
Rank change year-on-year +4 +9  
Contract jobs citing SSL 22 17 46
As % of all contract IT jobs advertised in the City of London 0.67% 0.50% 0.80%
As % of the Communications & Networking category 6.30% 3.60% 6.25%
Number of daily rates quoted 14 14 36
Median daily rate £550 £525 £445
Median daily rate % change year-on-year +4.76% +17.97%  
90% offered a daily rate of more than £429 £398 £301
10% offered a daily rate of more than £650 £675 £613
UK excluding London median daily rate £488 £388 £345
% change year-on-year +26.00% +12.48%  
Number of hourly rates quoted 1 0 2
Median hourly rate £30.00 - £62.50
UK excluding London median hourly rate - £40.00 £39.00
% change year-on-year - +2.56%  

SSL is in the communications and computer networking skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the City of London with a requirement for communications and computer networking skills.

Contract Communications & Computer Network Skills
City of London
Contract job vacancies with a requirement for communications and computer networking skills 349 472 736
As % of all contract IT job vacancies advertised in the City of London 10.56% 13.94% 12.83%
Number of daily rates quoted 270 370 549
Median daily rate £427 £463 £413
Median daily rate % change year-on-year -7.67% +12.12%  
90% offered a daily rate of more than £215 £288 £290
10% offered a daily rate of more than £600 £579 £550
UK excluding London median daily rate £375 £365 £340
% change year-on-year +2.73% +7.35%  
Number of hourly rates quoted 10 7 24
Median hourly rate £24.86 £19.00 £17.98
Median hourly rate % change year-on-year +30.84% +5.67%  
90% offered a hourly rate of more than £21.40 £17.50 £14.90
10% offered a hourly rate of more than £30.00 £25.20 £32.86
UK excluding London median hourly rate £30.00 £31.50 £24.00
% change year-on-year -4.76% +31.25%  

SSL
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing SSL as a proportion of all contract or permanent IT jobs with a match in the Communications & Networking category.

Job vacancy trend for SSL in the City of London

SSL
Contractor Daily Rate Trend in the City of London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing SSL in the City of London.

Contractor daily rate trend for SSL in the City of London

SSL
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing SSL in the City of London over the 3 months to 27 June 2017.

Contractor daily rate histogram for SSL in the City of London

SSL
Contractor Hourly Rate Trend in the City of London

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

Contractor hourly rate trend for SSL in the City of London

For the 6 months to 27 June 2017, IT contractor jobs citing SSL also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the City of London region with a requirement for SSL.

1 20 (44.44%) Linux
1 20 (44.44%) TCP/IP
2 19 (42.22%) Firewall
3 16 (35.56%) HTTP
4 15 (33.33%) Java
5 13 (28.89%) DNS
5 13 (28.89%) PostgreSQL
6 12 (26.67%) Finance
6 12 (26.67%) Cisco
7 11 (24.44%) Apache
7 11 (24.44%) Python
7 11 (24.44%) DevOps
8 10 (22.22%) Internet
8 10 (22.22%) Banking
9 9 (20.00%) Agile Software Development
9 9 (20.00%) IPsec
9 9 (20.00%) VPN
9 9 (20.00%) Web Services
9 9 (20.00%) Ansible
10 8 (17.78%) Continuous Delivery
10 8 (17.78%) SOAP
10 8 (17.78%) DHCP
10 8 (17.78%) VMware
10 8 (17.78%) Ruby
11 7 (15.56%) Bash Shell
11 7 (15.56%) SQL
11 7 (15.56%) MySQL
11 7 (15.56%) Active Directory
11 7 (15.56%) Data Centre
11 7 (15.56%) Docker

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 (24.44%) Apache
2 4 (8.89%) SharePoint
2 4 (8.89%) Tomcat
3 3 (6.67%) OpenStack
4 2 (4.44%) Apache Solr
4 2 (4.44%) CMS
4 2 (4.44%) LiveCycle
4 2 (4.44%) MS Exchange
4 2 (4.44%) nginx
4 2 (4.44%) Skype for Business
4 2 (4.44%) WebSphere
5 1 (2.22%) Apache Pig
5 1 (2.22%) Apache Spark
5 1 (2.22%) CICS
5 1 (2.22%) Confluence
5 1 (2.22%) Elasticsearch
5 1 (2.22%) Exchange Server 2010
5 1 (2.22%) IIS
5 1 (2.22%) JBoss
Applications
1 1 (2.22%) HipChat
1 1 (2.22%) Microsoft Excel
1 1 (2.22%) Microsoft Office
1 1 (2.22%) Microsoft Project
1 1 (2.22%) MS Visio
Business Applications
1 1 (2.22%) Sentinel
Cloud Services
1 5 (11.11%) Amazon AWS
2 4 (8.89%) Microsoft Azure
3 3 (6.67%) GitHub
3 3 (6.67%) Heroku
4 1 (2.22%) BrowserStack
4 1 (2.22%) Office 365
4 1 (2.22%) SaaS
Communications & Networking
1 20 (44.44%) TCP/IP
2 19 (42.22%) Firewall
3 16 (35.56%) HTTP
4 13 (28.89%) DNS
5 10 (22.22%) Internet
6 9 (20.00%) IPsec
6 9 (20.00%) VPN
7 8 (17.78%) DHCP
8 5 (11.11%) Cisco ASA
8 5 (11.11%) LAN
8 5 (11.11%) MPLS
8 5 (11.11%) WAN
9 4 (8.89%) Cisco Nexus
9 4 (8.89%) FTP
9 4 (8.89%) HSRP
9 4 (8.89%) SAN
10 3 (6.67%) ADSL
10 3 (6.67%) LDAP
10 3 (6.67%) Wireless
11 2 (4.44%) X.25
Database & Business Intelligence
1 13 (28.89%) PostgreSQL
2 7 (15.56%) MySQL
3 6 (13.33%) MongoDB
4 5 (11.11%) Relational Database
5 3 (6.67%) Apache Hive
5 3 (6.67%) Hadoop
5 3 (6.67%) HBase
5 3 (6.67%) SQL Server
6 2 (4.44%) Big Data
6 2 (4.44%) Impala
6 2 (4.44%) RDBMS
6 2 (4.44%) Sqoop
7 1 (2.22%) Cloudera CDH
7 1 (2.22%) Redis
7 1 (2.22%) SQLite
Development Applications
1 7 (15.56%) Jenkins
2 4 (8.89%) Git (software)
2 4 (8.89%) webpack
3 3 (6.67%) Artifactory
3 3 (6.67%) Gradle
3 3 (6.67%) Sonatype Nexus
4 2 (4.44%) Maven
4 2 (4.44%) Selenium
4 2 (4.44%) Subversion
4 2 (4.44%) Vagrant
4 2 (4.44%) VSS/SourceSafe
5 1 (2.22%) Atlassian Bamboo
5 1 (2.22%) ClearCase
5 1 (2.22%) Grunt
5 1 (2.22%) JIRA
5 1 (2.22%) JSHint
5 1 (2.22%) Karma Test Runner
5 1 (2.22%) MSI
5 1 (2.22%) Talend Open Studio
5 1 (2.22%) TeamCity
General
1 12 (26.67%) Finance
2 10 (22.22%) Banking
3 3 (6.67%) Investment Banking
4 2 (4.44%) Financial Institution
4 2 (4.44%) Telecoms
5 1 (2.22%) Front Office
Job Titles
1 8 (17.78%) DevOps Engineer
2 7 (15.56%) Architect
2 7 (15.56%) Infrastructure Engineer
3 4 (8.89%) 3rd Line Engineer
3 4 (8.89%) 3rd Line Infrastructure Engineer
3 4 (8.89%) Administrator
3 4 (8.89%) Consultant
3 4 (8.89%) Developer
4 3 (6.67%) Platform Architect
4 3 (6.67%) Security Engineer
4 3 (6.67%) Support Engineer
5 2 (4.44%) Cisco Engineer
5 2 (4.44%) Cisco Network Engineer
5 2 (4.44%) Data Centre Engineer
5 2 (4.44%) Java Consultant
5 2 (4.44%) Linux Engineer
5 2 (4.44%) Linux Support
5 2 (4.44%) PHP Developer
5 2 (4.44%) Senior Linux Engineer
5 2 (4.44%) Senior Support Engineer
Libraries, Frameworks & Software Standards
1 9 (20.00%) Web Services
2 8 (17.78%) SOAP
3 7 (15.56%) REST
4 6 (13.33%) LAPP Stack
5 4 (8.89%) RESTful
6 3 (6.67%) AngularJS
6 3 (6.67%) Dropwizard
6 3 (6.67%) Guice
6 3 (6.67%) HTML
6 3 (6.67%) Node.js
6 3 (6.67%) OAuth
6 3 (6.67%) OAuth2
6 3 (6.67%) Ratpack
6 3 (6.67%) Sass
7 2 (4.44%) 802.1X
7 2 (4.44%) Elastic Stack
7 2 (4.44%) LEMP Stack
7 2 (4.44%) PHP-FPM
7 2 (4.44%) RabbitMQ
7 2 (4.44%) Sensu
Miscellaneous
1 7 (15.56%) Data Centre
2 4 (8.89%) Analytical Skills
2 4 (8.89%) Clustering
2 4 (8.89%) Replication
3 3 (6.67%) Management Information System
3 3 (6.67%) Public Cloud
4 2 (4.44%) Computer Science
4 2 (4.44%) Hybrid Cloud
4 2 (4.44%) PKI
4 2 (4.44%) Video Conferencing
5 1 (2.22%) DataPower
5 1 (2.22%) Fat Client
5 1 (2.22%) Fintech
5 1 (2.22%) Foreign Exchange (FX)
5 1 (2.22%) Graphic Design
5 1 (2.22%) Mainframe
5 1 (2.22%) NHS
5 1 (2.22%) Smartphone
5 1 (2.22%) Thin Client
5 1 (2.22%) User Experience
Operating Systems
1 20 (44.44%) Linux
2 6 (13.33%) Windows
3 5 (11.11%) Red Hat Enterprise Linux
4 4 (8.89%) CoreOS
4 4 (8.89%) Unix
5 3 (6.67%) Ubuntu
6 2 (4.44%) Android
6 2 (4.44%) Windows 7
7 1 (2.22%) AIX
7 1 (2.22%) Apple iOS
7 1 (2.22%) CentOS
7 1 (2.22%) Fedora
7 1 (2.22%) RancherOS
7 1 (2.22%) Solaris
7 1 (2.22%) Windows 10
7 1 (2.22%) Windows Server
7 1 (2.22%) Windows Server 2008
Processes & Methodologies
1 11 (24.44%) DevOps
2 9 (20.00%) Agile Software Development
3 8 (17.78%) Continuous Delivery
4 6 (13.33%) Test Automation
5 5 (11.11%) Software Engineering
6 4 (8.89%) Configuration Management
6 4 (8.89%) Continuous Integration
6 4 (8.89%) Cybersecurity
6 4 (8.89%) Infrastructure Management
6 4 (8.89%) Kalman Filter
6 4 (8.89%) Load Balancing
6 4 (8.89%) Mobile Device Management
6 4 (8.89%) OWASP
6 4 (8.89%) Server Virtualisation
7 3 (6.67%) CQRS
7 3 (6.67%) Data Protection
7 3 (6.67%) Domain-Driven Design
7 3 (6.67%) Refactoring
7 3 (6.67%) TDD
7 3 (6.67%) User Acceptance Testing
Programming Languages
1 15 (33.33%) Java
2 11 (24.44%) Python
3 8 (17.78%) Ruby
4 7 (15.56%) Bash Shell
4 7 (15.56%) SQL
5 5 (11.11%) Perl
6 4 (8.89%) JavaScript
6 4 (8.89%) Shell Script
7 3 (6.67%) Groovy
7 3 (6.67%) PowerShell
7 3 (6.67%) Scala
8 2 (4.44%) C
8 2 (4.44%) PHP
8 2 (4.44%) PHP 5
9 1 (2.22%) COBOL
9 1 (2.22%) Go
9 1 (2.22%) JCL
9 1 (2.22%) T-SQL
9 1 (2.22%) VBScript
Qualifications
1 3 (6.67%) Degree
1 3 (6.67%) SC Cleared
1 3 (6.67%) Security Cleared
2 2 (4.44%) CISSP
3 1 (2.22%) CCIE
3 1 (2.22%) CCIE Security
3 1 (2.22%) CCNP
3 1 (2.22%) CISA
3 1 (2.22%) Cisco Certification
3 1 (2.22%) CSSLP
3 1 (2.22%) GCIA
3 1 (2.22%) GCIH
3 1 (2.22%) MCSE
3 1 (2.22%) Microsoft Certification
3 1 (2.22%) OCA
3 1 (2.22%) Oracle Certification
3 1 (2.22%) RHCE
Quality Assurance & Compliance
1 1 (2.22%) COBIT
1 1 (2.22%) COSO
1 1 (2.22%) PCI DSS
1 1 (2.22%) QA
1 1 (2.22%) Sarbanes-Oxley
1 1 (2.22%) SLA
System Software
1 7 (15.56%) Active Directory
1 7 (15.56%) Docker
2 6 (13.33%) VMware Infrastructure
3 4 (8.89%) BitLocker
3 4 (8.89%) Hyper-V
3 4 (8.89%) Terminal Services
4 3 (6.67%) HDFS
4 3 (6.67%) vCloud
5 2 (4.44%) Apache Flume
5 2 (4.44%) Apache ZooKeeper
6 1 (2.22%) etcd
6 1 (2.22%) flannel
6 1 (2.22%) Microsoft App-V
6 1 (2.22%) Virtual Servers
6 1 (2.22%) VMware Workstation
6 1 (2.22%) XenApp
6 1 (2.22%) XenDesktop
Systems Management
1 9 (20.00%) Ansible
2 7 (15.56%) Puppet
3 5 (11.11%) Terraform
4 4 (8.89%) Docker Swarm
5 3 (6.67%) Kibana
5 3 (6.67%) Kubernetes
6 2 (4.44%) CA Single Sign-On
6 2 (4.44%) Grafana
6 2 (4.44%) Hadoop YARN
6 2 (4.44%) HAProxy
6 2 (4.44%) logstash
6 2 (4.44%) Mesos
6 2 (4.44%) SCCM
7 1 (2.22%) Backup Exec
7 1 (2.22%) BladeLogic
7 1 (2.22%) Control-M
7 1 (2.22%) Host Intrusion Detection System
7 1 (2.22%) IBM BigFix
7 1 (2.22%) Nagios
7 1 (2.22%) WSUS
Vendors
1 12 (26.67%) Cisco
2 8 (17.78%) VMware
3 6 (13.33%) CheckPoint
4 5 (11.11%) F5
4 5 (11.11%) Microsoft
4 5 (11.11%) NetApp
4 5 (11.11%) Veeam
5 4 (8.89%) HP
5 4 (8.89%) SaltStack
6 2 (4.44%) Adobe
6 2 (4.44%) Avaya
6 2 (4.44%) Cloudera
6 2 (4.44%) Fortinet
6 2 (4.44%) Oracle
6 2 (4.44%) Polycom
7 1 (2.22%) Alteryx
7 1 (2.22%) Palantir
7 1 (2.22%) ServiceNow
7 1 (2.22%) Tableau
7 1 (2.22%) Talend
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