Period
to 25 August 2019

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 25 August 2019 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
25 Aug 2019
Same period 2018 Same period 2017
Rank 231 182 208
Rank change year-on-year -49 +26 -9
Contract jobs citing SSL 19 75 42
As % of all contract IT jobs advertised in the City of London 0.30% 1.07% 0.63%
As % of the Communications & Networking category 2.77% 8.68% 5.85%
Number of daily rates quoted 16 58 29
City of London median daily rate £513 £519 £550
Median daily rate % change year-on-year -1.20% -5.68% +16.40%
10th Percentile £416 £408 £405
90th Percentile £675 £713 £675
Central London median daily rate £550 £513 £550
% change year-on-year +7.32% -6.82% +10.00%
Number of hourly rates quoted 0 0 1
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 686 864 718
As % of all contract IT jobs advertised in the City of London 10.82% 12.28% 10.69%
Number of daily rates quoted 511 676 538
City of London median daily rate £475 £450 £450
Median daily rate % change year-on-year +5.56% - +1.12%
10th Percentile £200 £199 £189
90th Percentile £650 £638 £638
Central London median daily rate £475 £450 £450
% change year-on-year +5.56% - +1.12%
Number of hourly rates quoted 14 27 21
City of London median hourly rate £33.75 £19.00 £21.16
Median hourly rate % change year-on-year +77.63% -10.19% +11.34%
10th Percentile £13.83 £14.55 £13.31
90th Percentile £44.80 £33.90 £30.00
Central London median hourly rate £33.75 £19.50 £21.16
% change year-on-year +73.08% -7.82% +11.34%

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 25 August 2019.

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 25 August 2019, 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 17 (89.47%) Linux
2 14 (73.68%) Java
2 14 (73.68%) TCP/IP
3 13 (68.42%) FTP
3 13 (68.42%) HTTP
3 13 (68.42%) DNS
4 11 (57.89%) Microservices
5 10 (52.63%) DevOps
6 9 (47.37%) Docker
6 9 (47.37%) Spring
7 8 (42.11%) Git (software)
7 8 (42.11%) AWS
7 8 (42.11%) SOAP
7 8 (42.11%) REST
7 8 (42.11%) Kubernetes
7 8 (42.11%) Java 8
8 7 (36.84%) Docker Swarm
8 7 (36.84%) Gatling
8 7 (36.84%) Dropwizard
8 7 (36.84%) WireMock
8 7 (36.84%) Ratpack
8 7 (36.84%) gulp
8 7 (36.84%) Kafka
8 7 (36.84%) Gradle
8 7 (36.84%) GitLab
8 7 (36.84%) Spock
8 7 (36.84%) Geb
8 7 (36.84%) OAuth2
8 7 (36.84%) TypeScript
8 7 (36.84%) HTML

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 3 (15.79%) Apache
2 2 (10.53%) JBoss
2 2 (10.53%) Tomcat
2 2 (10.53%) WebSphere
3 1 (5.26%) Elasticsearch
3 1 (5.26%) IIS
3 1 (5.26%) Jetty
3 1 (5.26%) Mongrel
3 1 (5.26%) MS Exchange
3 1 (5.26%) nginx
3 1 (5.26%) WebLogic
Applications
1 1 (5.26%) Microsoft Office
Cloud Services
1 8 (42.11%) AWS
2 6 (31.58%) Amazon SQS
3 2 (10.53%) GCP
4 1 (5.26%) Amazon EC2
4 1 (5.26%) Apigee
4 1 (5.26%) Azure
4 1 (5.26%) Cloud Computing
4 1 (5.26%) GitHub
4 1 (5.26%) Google App Engine
4 1 (5.26%) SaaS
Communications & Networking
1 14 (73.68%) TCP/IP
2 13 (68.42%) DNS
2 13 (68.42%) FTP
2 13 (68.42%) HTTP
3 5 (26.32%) DHCP
3 5 (26.32%) IPsec
4 4 (21.05%) Firewall
5 2 (10.53%) Cisco ASA
5 2 (10.53%) Network Security
5 2 (10.53%) VPN
5 2 (10.53%) WAN
6 1 (5.26%) BGP
6 1 (5.26%) Ethernet
6 1 (5.26%) Internet
6 1 (5.26%) Intrusion Detection
6 1 (5.26%) LAN
6 1 (5.26%) MPLS
6 1 (5.26%) OSPF
6 1 (5.26%) VoIP
6 1 (5.26%) Wireless
Database & Business Intelligence
1 7 (36.84%) PostgreSQL
2 5 (26.32%) MongoDB
3 3 (15.79%) MySQL
3 3 (15.79%) NoSQL
3 3 (15.79%) RDBMS
3 3 (15.79%) Relational Database
Development Applications
1 8 (42.11%) Git (software)
2 7 (36.84%) Gatling
2 7 (36.84%) Geb
2 7 (36.84%) GitLab
2 7 (36.84%) Gradle
2 7 (36.84%) gulp
2 7 (36.84%) Spock
3 4 (21.05%) Jenkins
3 4 (21.05%) Travis CI
4 1 (5.26%) Bitbucket
4 1 (5.26%) Eclipse
4 1 (5.26%) IntelliJ
4 1 (5.26%) JUnit
4 1 (5.26%) Selenium
General
1 3 (15.79%) Banking
1 3 (15.79%) Retail
2 2 (10.53%) Finance
2 2 (10.53%) Public Sector
3 1 (5.26%) Investment Banking
3 1 (5.26%) Telecoms
Job Titles
1 9 (47.37%) Developer
2 7 (36.84%) Java Developer
3 2 (10.53%) DevOps Engineer
4 1 (5.26%) .NET Developer
4 1 (5.26%) Agile Developer
4 1 (5.26%) Backend Developer
4 1 (5.26%) Blue Coat Engineer
4 1 (5.26%) Cisco Specialist
4 1 (5.26%) Cloud Developer
4 1 (5.26%) Delivery Manager
4 1 (5.26%) Infrastructure Engineer
4 1 (5.26%) Middleware Engineer
4 1 (5.26%) Platform Engineer
4 1 (5.26%) Security Specialist
4 1 (5.26%) Senior DevOps
4 1 (5.26%) Service Delivery Manager
4 1 (5.26%) Service Manager
4 1 (5.26%) SOC Engineer
4 1 (5.26%) WebSphere Administrator
4 1 (5.26%) WebSphere MQ Administrator
Libraries, Frameworks & Software Standards
1 9 (47.37%) Spring
2 8 (42.11%) REST
2 8 (42.11%) SOAP
3 7 (36.84%) CSS
3 7 (36.84%) Dropwizard
3 7 (36.84%) Guice
3 7 (36.84%) HTML
3 7 (36.84%) HTML5
3 7 (36.84%) Kafka
3 7 (36.84%) OAuth
3 7 (36.84%) OAuth2
3 7 (36.84%) Ratpack
3 7 (36.84%) WireMock
4 5 (26.32%) Hibernate
5 4 (21.05%) AngularJS
5 4 (21.05%) Ember.js
5 4 (21.05%) Spring Boot
6 2 (10.53%) .NET
6 2 (10.53%) J2EE
6 2 (10.53%) Servlets
Miscellaneous
1 2 (10.53%) PKI
2 1 (5.26%) Foreign Exchange (FX)
2 1 (5.26%) Greenfield Project
2 1 (5.26%) Public Cloud
Operating Systems
1 17 (89.47%) Linux
2 3 (15.79%) Windows
3 2 (10.53%) Mac OS
4 1 (5.26%) Android
4 1 (5.26%) Apple iOS
4 1 (5.26%) Debian
4 1 (5.26%) Ubuntu
4 1 (5.26%) Unix
4 1 (5.26%) Windows 10
4 1 (5.26%) Windows 7
Processes & Methodologies
1 11 (57.89%) Microservices
2 10 (52.63%) DevOps
3 7 (36.84%) BDD
3 7 (36.84%) Domain-Driven Design
3 7 (36.84%) OWASP
3 7 (36.84%) Software Engineering
3 7 (36.84%) TDD
4 5 (26.32%) Configuration Management
4 5 (26.32%) Open Source
5 4 (21.05%) Agile Software Development
5 4 (21.05%) Continuous Integration
6 3 (15.79%) High Availability
6 3 (15.79%) OO
6 3 (15.79%) OOP
6 3 (15.79%) Target Operating Model
6 3 (15.79%) Test Automation
6 3 (15.79%) Thought Leadership
7 2 (10.53%) Kalman Filter
7 2 (10.53%) Problem-Solving
7 2 (10.53%) Service Delivery
Programming Languages
1 14 (73.68%) Java
2 8 (42.11%) Java 8
3 7 (36.84%) TypeScript
4 6 (31.58%) ES6
4 6 (31.58%) JavaScript
5 2 (10.53%) Bash Shell
5 2 (10.53%) SQL
6 1 (5.26%) C#
6 1 (5.26%) Java 9
6 1 (5.26%) Python
6 1 (5.26%) Scala
6 1 (5.26%) VB.NET
Qualifications
1 1 (5.26%) BC Cleared
1 1 (5.26%) BPSS Clearance
1 1 (5.26%) CCDA
1 1 (5.26%) CCDP
1 1 (5.26%) CCIE
1 1 (5.26%) CCNA
1 1 (5.26%) CCNP
1 1 (5.26%) Cisco Certification
1 1 (5.26%) Degree
1 1 (5.26%) SC Cleared
1 1 (5.26%) Security Cleared
System Software
1 9 (47.37%) Docker
2 3 (15.79%) Virtual Machines
3 2 (10.53%) Active Directory
3 2 (10.53%) VMware Infrastructure
4 1 (5.26%) ProxySG
4 1 (5.26%) VMware ESXi
4 1 (5.26%) Xen
Systems Management
1 8 (42.11%) Kubernetes
2 7 (36.84%) Docker Swarm
3 6 (31.58%) Opscode Chef
3 6 (31.58%) Puppet
3 6 (31.58%) Terraform
4 1 (5.26%) Ansible
4 1 (5.26%) Istio
Vendors
1 3 (15.79%) Microsoft
2 2 (10.53%) Apple
2 2 (10.53%) Cisco
2 2 (10.53%) Google
2 2 (10.53%) VMware
2 2 (10.53%) webMethods
3 1 (5.26%) Blue Coat
3 1 (5.26%) CheckPoint
3 1 (5.26%) IBM
3 1 (5.26%) Meraki
3 1 (5.26%) Palo Alto
3 1 (5.26%) ServiceNow