Period
to 9 April 2020

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 9 April 2020 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
9 Apr 2020
Same period 2019 Same period 2018
Rank 155 211 177
Rank change year-on-year +56 -34 +2
Contract jobs citing SSL 18 43 76
As % of all contract jobs advertised in the City of London 0.44% 0.63% 1.08%
As % of the Communications & Networking category 4.38% 5.65% 9.57%
Number of daily rates quoted 14 40 66
Median daily rate £631 £563 £550
Median daily rate % change year-on-year +12.09% +2.37% +29.29%
10th Percentile £433 £313 £363
90th Percentile £695 £725 £625
Central London median daily rate £568 £525 £538
% change year-on-year +8.19% -2.33% +25.00%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
Central London median hourly rate - - -

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 411 761 794
As % of all contract IT jobs advertised in the City of London 9.99% 11.17% 11.28%
Number of daily rates quoted 290 585 625
Median daily rate £450 £463 £450
Median daily rate % change year-on-year -2.70% +2.78% -
10th Percentile £205 £185 £233
90th Percentile £651 £650 £625
Central London median daily rate £450 £463 £450
% change year-on-year -2.70% +2.78% -
Number of hourly rates quoted 10 20 20
Median hourly rate £35.00 £21.32 £16.93
Median hourly rate % change year-on-year +64.15% +25.98% -10.92%
10th Percentile £17.93 £17.94 £11.25
90th Percentile £51.78 £37.50 £24.90
Median hourly rate £35.00 £20.65 £16.18
% change year-on-year +69.53% +27.64% -19.44%

SSL
Job Vacancy Trend in the City of London

Job postings citing SSL as a proportion 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

3-month moving average daily rate quoted in jobs citing SSL in the City of London.

Daily rate trend for SSL in the City of London

SSL
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing SSL in the City of London over the 6 months to 9 April 2020.

Daily rate histogram for SSL in the City of London

SSL
Contractor Hourly Rate Trend in the City of London

3-month moving average hourly rates quoted in jobs citing SSL in the City of London.

Hourly rate trend for SSL in the City of London

For the 6 months to 9 April 2020, 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 11 (61.11%) HTTP
1 11 (61.11%) Kubernetes
2 10 (55.56%) Java
2 10 (55.56%) Agile Software Development
3 9 (50.00%) Spring
3 9 (50.00%) TCP/IP
3 9 (50.00%) Docker
3 9 (50.00%) Microservices
4 8 (44.44%) DNS
4 8 (44.44%) Guice
4 8 (44.44%) Git (software)
5 7 (38.89%) AWS
5 7 (38.89%) REST
5 7 (38.89%) Kafka
5 7 (38.89%) Elasticsearch
5 7 (38.89%) SOAP
5 7 (38.89%) Java 8
6 6 (33.33%) Spring Boot
6 6 (33.33%) Terraform
6 6 (33.33%) Linux
6 6 (33.33%) Software Engineering
6 6 (33.33%) Finance
6 6 (33.33%) Jenkins
6 6 (33.33%) Continuous Integration
7 5 (27.78%) Azure
7 5 (27.78%) OWASP
7 5 (27.78%) OAuth
7 5 (27.78%) Domain-Driven Design
7 5 (27.78%) Gradle
7 5 (27.78%) OAuth2

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 7 (38.89%) Elasticsearch
2 2 (11.11%) Apache Spark
3 1 (5.56%) IIS
3 1 (5.56%) SharePoint
3 1 (5.56%) SharePoint 2010
3 1 (5.56%) SharePoint 2013
3 1 (5.56%) Tomcat
3 1 (5.56%) WebLogic
Cloud Services
1 7 (38.89%) AWS
2 5 (27.78%) Azure
3 3 (16.67%) GCP
4 2 (11.11%) Amazon EKS
4 2 (11.11%) Amazon SQS
4 2 (11.11%) GitHub
4 2 (11.11%) PaaS
4 2 (11.11%) Route 53
5 1 (5.56%) Cloud Computing
5 1 (5.56%) Heroku
Communications & Networking
1 11 (61.11%) HTTP
2 9 (50.00%) TCP/IP
3 8 (44.44%) DNS
4 5 (27.78%) FTP
5 3 (16.67%) Firewall
5 3 (16.67%) HTTPS
6 2 (11.11%) VPN
7 1 (5.56%) BGP
7 1 (5.56%) Cisco ASA
7 1 (5.56%) DHCP
7 1 (5.56%) F5 BIG-IP LTM
7 1 (5.56%) Internet
7 1 (5.56%) IPsec
7 1 (5.56%) Junos
7 1 (5.56%) MPLS
7 1 (5.56%) NetScreen
7 1 (5.56%) OSPF
7 1 (5.56%) SNMP
7 1 (5.56%) VLAN
7 1 (5.56%) VRRP
Database & Business Intelligence
1 5 (27.78%) MongoDB
2 3 (16.67%) NoSQL
3 2 (11.11%) PostgreSQL
3 2 (11.11%) Redis
4 1 (5.56%) RDBMS
4 1 (5.56%) Relational Database
4 1 (5.56%) SQL Server
Development Applications
1 8 (44.44%) Git (software)
2 6 (33.33%) Jenkins
3 5 (27.78%) GitLab
3 5 (27.78%) Gradle
4 4 (22.22%) Gatling
4 4 (22.22%) Geb
4 4 (22.22%) Spock
5 1 (5.56%) Bitbucket
5 1 (5.56%) gulp
5 1 (5.56%) JIRA
5 1 (5.56%) JUnit
5 1 (5.56%) Team Foundation Server
General
1 6 (33.33%) Finance
2 1 (5.56%) Banking
2 1 (5.56%) Marketing
Job Titles
1 9 (50.00%) Developer
2 8 (44.44%) Java Developer
3 4 (22.22%) Agile Developer
3 4 (22.22%) Agile Java Developer
4 2 (11.11%) Cloud Engineer
4 2 (11.11%) Network Engineer
4 2 (11.11%) Platform Engineer
5 1 (5.56%) Architect
5 1 (5.56%) Cloud Architect
5 1 (5.56%) Cloud Developer
5 1 (5.56%) Consultant
5 1 (5.56%) DevOps Engineer
5 1 (5.56%) Lead Architect
5 1 (5.56%) Lead Developer
5 1 (5.56%) Linux Developer
5 1 (5.56%) Salesforce Architect
5 1 (5.56%) Salesforce Developer
5 1 (5.56%) Security Consultant
5 1 (5.56%) SharePoint Consultant
5 1 (5.56%) Technical Leader
Libraries, Frameworks & Software Standards
1 9 (50.00%) Spring
2 8 (44.44%) Guice
3 7 (38.89%) Kafka
3 7 (38.89%) REST
3 7 (38.89%) SOAP
4 6 (33.33%) Spring Boot
5 5 (27.78%) AngularJS
5 5 (27.78%) Dropwizard
5 5 (27.78%) Ember.js
5 5 (27.78%) OAuth
5 5 (27.78%) OAuth2
5 5 (27.78%) Ratpack
6 4 (22.22%) RESTful
6 4 (22.22%) WireMock
7 3 (16.67%) JAAS
7 3 (16.67%) Spring Security
7 3 (16.67%) XML
8 2 (11.11%) Middleware
8 2 (11.11%) SAML
8 2 (11.11%) XSLT
Miscellaneous
1 2 (11.11%) Analytical Skills
2 1 (5.56%) Algorithms
2 1 (5.56%) Clustering
Operating Systems
1 6 (33.33%) Linux
Processes & Methodologies
1 10 (55.56%) Agile Software Development
2 9 (50.00%) Microservices
3 6 (33.33%) Continuous Integration
3 6 (33.33%) Software Engineering
4 5 (27.78%) Continuous Delivery
4 5 (27.78%) Domain-Driven Design
4 5 (27.78%) OWASP
4 5 (27.78%) SDLC
5 4 (22.22%) BDD
5 4 (22.22%) Digital Transformation Programme
5 4 (22.22%) High Availability
5 4 (22.22%) Problem-Solving
5 4 (22.22%) TDD
6 3 (16.67%) AOP
6 3 (16.67%) Dependency Injection
6 3 (16.67%) Test Automation
7 2 (11.11%) Computer Science
7 2 (11.11%) Infrastructure as Code
7 2 (11.11%) Mathematics
7 2 (11.11%) Task Automation
Programming Languages
1 10 (55.56%) Java
2 7 (38.89%) Java 8
3 5 (27.78%) TypeScript
4 4 (22.22%) JavaScript
4 4 (22.22%) SQL
5 3 (16.67%) Python
5 3 (16.67%) Ruby
6 2 (11.11%) Bash Shell
6 2 (11.11%) C#
6 2 (11.11%) Go
6 2 (11.11%) Kotlin
6 2 (11.11%) Scala
7 1 (5.56%) ES6
7 1 (5.56%) Haskell
7 1 (5.56%) PHP
7 1 (5.56%) PowerShell
7 1 (5.56%) VB.NET
Qualifications
1 2 (11.11%) CCNP
1 2 (11.11%) Cisco Certification
Quality Assurance & Compliance
1 1 (5.56%) ISO/IEC 20000
1 1 (5.56%) SLA
System Software
1 9 (50.00%) Docker
2 1 (5.56%) VMware Infrastructure
Systems Management
1 11 (61.11%) Kubernetes
2 6 (33.33%) Terraform
3 5 (27.78%) Docker Swarm
4 4 (22.22%) Prometheus
5 2 (11.11%) Zipkin
6 1 (5.56%) Opscode Chef
6 1 (5.56%) Puppet
6 1 (5.56%) Single Sign-On
Vendors
1 2 (11.11%) Cisco
1 2 (11.11%) F5
1 2 (11.11%) Juniper
1 2 (11.11%) Lets Encrypt
2 1 (5.56%) Aruba
2 1 (5.56%) Fortinet
2 1 (5.56%) HP
2 1 (5.56%) Netezza
2 1 (5.56%) Oracle
2 1 (5.56%) Palo Alto
2 1 (5.56%) Salesforce Marketing Cloud
2 1 (5.56%) Salesforce.com
2 1 (5.56%) VMware
2 1 (5.56%) Workday