Period
to 21 May 2018

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 6 months to 21 May 2018 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)
Central London > City of London
6 months to
21 May 2018
Same period 2017 Same period 2016
Rank 166 185 203
Rank change year-on-year +19 +18 -12
Contract jobs citing SSL 90 43 25
As % of all contract IT jobs advertised in the City of London 1.30% 0.70% 0.39%
As % of the Communications & Networking category 10.27% 6.40% 3.26%
Number of daily rates quoted 72 32 19
City of London median daily rate £542 £469 £425
Median daily rate % change year-on-year +15.68% +10.29% -5.56%
10th Percentile £367 £249 £306
90th Percentile £625 £608 £558
Central London median daily rate £535 £475 £425
% change year-on-year +12.63% +11.76% -5.56%
Number of hourly rates quoted 0 1 0
City of London median hourly rate - £30.00 -
Central London median hourly rate - £30.00 -

SSL is in the Communications and Computer Networking category. The following 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 or computer networking skills.

All Communications and Computer Networking Skills
City of London
Contract vacancies with a requirement for communications or computer networking skills 876 672 767
As % of all contract IT jobs advertised in the City of London 12.66% 10.99% 11.86%
Number of daily rates quoted 691 510 574
City of London median daily rate £450 £450 £425
Median daily rate % change year-on-year - +5.88% +6.25%
10th Percentile £230 £198 £257
90th Percentile £625 £625 £597
Central London median daily rate £450 £450 £425
% change year-on-year - +5.88% +6.25%
Number of hourly rates quoted 26 21 18
City of London median hourly rate £18.10 £21.16 £25.00
Median hourly rate % change year-on-year -14.44% -15.38% +33.69%
10th Percentile £12.13 £12.88 £18.50
90th Percentile £33.00 £30.00 £30.00
Central London median hourly rate £18.10 £21.16 £22.00
% change year-on-year -14.44% -3.84% +15.79%

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
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 6 months to 21 May 2018.

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 21 May 2018, IT contractor 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 contract job ads across the City of London region with a requirement for SSL.

1 57 (63.33%) Linux
2 49 (54.44%) Amazon AWS
3 48 (53.33%) TCP/IP
4 46 (51.11%) DNS
4 46 (51.11%) JavaScript
4 46 (51.11%) Agile Software Development
5 42 (46.67%) Java
5 42 (46.67%) HTTP
5 42 (46.67%) OAuth
6 41 (45.56%) PostgreSQL
7 38 (42.22%) MongoDB
8 36 (40.00%) REST
8 36 (40.00%) Docker
9 34 (37.78%) Git (software)
9 34 (37.78%) FTP
10 33 (36.67%) HTML
10 33 (36.67%) OWASP
10 33 (36.67%) HTML5
11 32 (35.56%) Heroku
11 32 (35.56%) TDD
11 32 (35.56%) SOAP
11 32 (35.56%) OAuth2
11 32 (35.56%) Java 8
12 29 (32.22%) GitLab
12 29 (32.22%) ES6
12 29 (32.22%) CSS
12 29 (32.22%) Software Engineering
12 29 (32.22%) BDD
12 29 (32.22%) AngularJS
13 26 (28.89%) Microservices

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 15 (16.67%) Apache Spark
2 12 (13.33%) Apache
3 7 (7.78%) Apache Solr
3 7 (7.78%) Elasticsearch
4 4 (4.44%) nginx
5 3 (3.33%) MS Exchange
6 2 (2.22%) Exchange Server 2010
7 1 (1.11%) Exchange Server 2013
7 1 (1.11%) IIS
7 1 (1.11%) Skype for Business
7 1 (1.11%) WebSphere
7 1 (1.11%) WebSphere Application Server
Applications
1 4 (4.44%) Microsoft Office
2 2 (2.22%) Microsoft Excel
Business Applications
1 1 (1.11%) RMDS
Cloud Services
1 49 (54.44%) Amazon AWS
2 32 (35.56%) Heroku
3 5 (5.56%) Microsoft Azure
4 1 (1.11%) Amazon EC2
4 1 (1.11%) Amazon S3
4 1 (1.11%) Cloud Computing
4 1 (1.11%) Google Cloud Platform
4 1 (1.11%) Office 365
4 1 (1.11%) Route 53
4 1 (1.11%) Virtual Private Cloud
Communications & Networking
1 48 (53.33%) TCP/IP
2 46 (51.11%) DNS
3 42 (46.67%) HTTP
4 34 (37.78%) FTP
5 19 (21.11%) Firewall
6 9 (10.00%) Internet
7 7 (7.78%) DHCP
7 7 (7.78%) Kerberos
7 7 (7.78%) VPN
8 5 (5.56%) Wireshark
9 4 (4.44%) BIG-IP
9 4 (4.44%) DKIM
9 4 (4.44%) DMARC
9 4 (4.44%) LAN
9 4 (4.44%) MPLS
9 4 (4.44%) WAN
10 3 (3.33%) ADSL
10 3 (3.33%) Cisco Nexus
10 3 (3.33%) Ethernet
10 3 (3.33%) IPsec
Database & Business Intelligence
1 41 (45.56%) PostgreSQL
2 38 (42.22%) MongoDB
3 16 (17.78%) Apache Cassandra
4 8 (8.89%) MySQL
4 8 (8.89%) NoSQL
4 8 (8.89%) Redis
5 7 (7.78%) Apache Hive
5 7 (7.78%) Hadoop
5 7 (7.78%) HBase
6 6 (6.67%) SQL Server
7 3 (3.33%) Relational Database
8 1 (1.11%) Informix
Development Applications
1 34 (37.78%) Git (software)
2 29 (32.22%) GitLab
3 24 (26.67%) Gradle
4 21 (23.33%) Gatling
4 21 (23.33%) Geb
4 21 (23.33%) gulp
4 21 (23.33%) Spock
5 15 (16.67%) Jenkins
6 9 (10.00%) Maven
7 5 (5.56%) Visual Studio
8 4 (4.44%) Artifactory
8 4 (4.44%) Fiddler
9 3 (3.33%) webpack
10 2 (2.22%) JIRA
10 2 (2.22%) Sonatype Nexus
11 1 (1.11%) Vagrant
11 1 (1.11%) XMLSpy
General
1 13 (14.44%) Finance
2 12 (13.33%) Banking
3 3 (3.33%) Retail Banking
4 2 (2.22%) Financial Institution
5 1 (1.11%) Legal
5 1 (1.11%) Spanish Language
Job Titles
1 43 (47.78%) Developer
2 25 (27.78%) Java Developer
3 21 (23.33%) Agile Developer
3 21 (23.33%) Agile Java Developer
4 13 (14.44%) Analyst
5 11 (12.22%) Consultant
6 10 (11.11%) Security Analyst
7 8 (8.89%) Ruby Developer
8 6 (6.67%) AWS DevOps
9 5 (5.56%) Architect
9 5 (5.56%) C# Developer
9 5 (5.56%) Full Stack Developer
9 5 (5.56%) Linux/Unix DevOps
9 5 (5.56%) Principal Consultant
9 5 (5.56%) Senior DevOps
10 4 (4.44%) Information Analyst
10 4 (4.44%) Information Security Analyst
11 3 (3.33%) Administrator
11 3 (3.33%) Business Analyst
11 3 (3.33%) Security Engineer
Libraries, Frameworks & Software Standards
1 42 (46.67%) OAuth
2 36 (40.00%) REST
3 33 (36.67%) HTML
3 33 (36.67%) HTML5
4 32 (35.56%) OAuth2
4 32 (35.56%) SOAP
5 29 (32.22%) AngularJS
5 29 (32.22%) CSS
6 24 (26.67%) Dropwizard
6 24 (26.67%) Guice
6 24 (26.67%) Ratpack
7 23 (25.56%) Kafka
8 21 (23.33%) Ember.js
8 21 (23.33%) WireMock
9 16 (17.78%) SAML
10 14 (15.56%) Spring
10 14 (15.56%) Spring Boot
11 10 (11.11%) RabbitMQ
11 10 (11.11%) RESTful
12 9 (10.00%) Node.js
Miscellaneous
1 9 (10.00%) Mobile App
2 8 (8.89%) Credit Risk
2 8 (8.89%) Fintech
3 4 (4.44%) Data Centre
3 4 (4.44%) Wiki
4 3 (3.33%) Computer Science
4 3 (3.33%) Enterprise Software
4 3 (3.33%) Public Cloud
4 3 (3.33%) Self-Motivation
5 2 (2.22%) Linux Command Line
6 1 (1.11%) Analytical Skills
6 1 (1.11%) Blackberry
6 1 (1.11%) Derivative
6 1 (1.11%) Greenfield Project
6 1 (1.11%) Management Information System
6 1 (1.11%) Smartphone
Operating Systems
1 57 (63.33%) Linux
2 11 (12.22%) Android
2 11 (12.22%) Red Hat Enterprise Linux
3 10 (11.11%) Apple iOS
4 8 (8.89%) Windows
5 6 (6.67%) Windows Server
6 5 (5.56%) Ubuntu
7 4 (4.44%) Unix
8 3 (3.33%) CoreOS
9 2 (2.22%) Windows 10
9 2 (2.22%) Windows 7
10 1 (1.11%) Mac OS
10 1 (1.11%) Windows 8
10 1 (1.11%) Windows Server 2008
10 1 (1.11%) Windows Server 2012
10 1 (1.11%) Windows Vista
Processes & Methodologies
1 46 (51.11%) Agile Software Development
2 33 (36.67%) OWASP
3 32 (35.56%) TDD
4 29 (32.22%) BDD
4 29 (32.22%) Software Engineering
5 26 (28.89%) Microservices
6 24 (26.67%) Domain-Driven Design
7 22 (24.44%) Digital Transformation Programme
8 12 (13.33%) Configuration Management
9 11 (12.22%) DevOps
10 9 (10.00%) Identity Access Management
10 9 (10.00%) Mobile Application Development
11 8 (8.89%) Continuous Delivery
11 8 (8.89%) Functional Programming
11 8 (8.89%) Parallel Computing
11 8 (8.89%) Parallel Processing
12 7 (7.78%) API Development
12 7 (7.78%) ITIL
13 6 (6.67%) Analytics
13 6 (6.67%) Cybersecurity
Programming Languages
1 46 (51.11%) JavaScript
2 42 (46.67%) Java
3 32 (35.56%) Java 8
4 29 (32.22%) ES6
5 21 (23.33%) TypeScript
6 18 (20.00%) Groovy
7 15 (16.67%) Scala
8 14 (15.56%) Python
9 12 (13.33%) Ruby
10 5 (5.56%) C#
11 4 (4.44%) Bash Shell
12 2 (2.22%) Perl
13 1 (1.11%) Go
13 1 (1.11%) PowerShell
13 1 (1.11%) Shell Script
Qualifications
1 4 (4.44%) CISSP
1 4 (4.44%) Security Cleared
2 3 (3.33%) Degree
3 2 (2.22%) CEH
3 2 (2.22%) OCA
3 2 (2.22%) Oracle Certification
3 2 (2.22%) SC Cleared
Quality Assurance & Compliance
1 6 (6.67%) QA
2 5 (5.56%) HL7
3 1 (1.11%) GDPR
System Software
1 36 (40.00%) Docker
2 13 (14.44%) Active Directory
3 7 (7.78%) Apache Flume
3 7 (7.78%) Apache ZooKeeper
3 7 (7.78%) HDFS
4 5 (5.56%) vCloud
5 2 (2.22%) Firmware
6 1 (1.11%) Microsoft App-V
Systems Management
1 24 (26.67%) Docker Swarm
2 10 (11.11%) Ansible
3 8 (8.89%) Marathon
3 8 (8.89%) Mesos
3 8 (8.89%) Puppet
4 7 (7.78%) Ambari
4 7 (7.78%) Apache Slider
4 7 (7.78%) Hadoop YARN
4 7 (7.78%) Oozie
5 6 (6.67%) Single Sign-On
6 5 (5.56%) Kubernetes
6 5 (5.56%) Terraform
7 4 (4.44%) Nessus
8 3 (3.33%) CA Single Sign-On
8 3 (3.33%) CASB
8 3 (3.33%) Kibana
8 3 (3.33%) logstash
9 2 (2.22%) Grafana
9 2 (2.22%) HAProxy
9 2 (2.22%) PingFederate
Vendors
1 9 (10.00%) Apigee
1 9 (10.00%) Cisco
1 9 (10.00%) Google
2 8 (8.89%) Microsoft
3 7 (7.78%) F5
3 7 (7.78%) Hortonworks
4 6 (6.67%) IBM
4 6 (6.67%) VMware
5 5 (5.56%) Palo Alto
5 5 (5.56%) Qualys
5 5 (5.56%) SaltStack
6 3 (3.33%) ServiceNow
7 2 (2.22%) Forcepoint
7 2 (2.22%) Fortinet
7 2 (2.22%) Sophos
8 1 (1.11%) Bloomberg
8 1 (1.11%) Dell
8 1 (1.11%) HP
8 1 (1.11%) Remedy
8 1 (1.11%) Reuters