Period
to 18 October 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 18 October 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
18 Oct 2018
Same period 2017 Same period 2016
Rank 200 206 197
Rank change year-on-year +6 -9 +13
Contract jobs citing SSL 62 40 48
As % of all contract IT jobs advertised in the City of London 0.88% 0.58% 0.72%
As % of the Communications & Networking category 7.73% 5.61% 4.95%
Number of daily rates quoted 48 34 40
City of London median daily rate £550 £550 £460
Median daily rate % change year-on-year -0.05% +19.57% +2.22%
10th Percentile £412 £409 £381
90th Percentile £713 £694 £528
Central London median daily rate £544 £550 £500
% change year-on-year -1.18% +10.00% +11.11%
Number of hourly rates quoted 0 0 0
City of London 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 802 713 969
As % of all contract IT jobs advertised in the City of London 11.44% 10.40% 14.51%
Number of daily rates quoted 627 558 747
City of London median daily rate £448 £450 £450
Median daily rate % change year-on-year -0.56% - +5.88%
10th Percentile £164 £212 £287
90th Percentile £638 £638 £588
Central London median daily rate £433 £450 £450
% change year-on-year -3.78% - +5.88%
Number of hourly rates quoted 27 14 13
City of London median hourly rate £17.50 £17.00 £19.00
Median hourly rate % change year-on-year +2.94% -10.53% +5.67%
10th Percentile £12.00 £11.91 £11.50
90th Percentile £28.50 £29.56 £24.17
Central London median hourly rate £18.10 £17.00 £19.00
% change year-on-year +6.47% -10.53% +5.67%

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 18 October 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 18 October 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 41 (66.13%) Amazon AWS
2 39 (62.90%) Linux
2 39 (62.90%) DNS
3 38 (61.29%) OAuth
4 37 (59.68%) TCP/IP
4 37 (59.68%) HTTP
5 36 (58.06%) Java
5 36 (58.06%) JavaScript
6 33 (53.23%) FTP
7 32 (51.61%) Git (software)
8 31 (50.00%) Docker
9 29 (46.77%) Microservices
9 29 (46.77%) OAuth2
9 29 (46.77%) OWASP
9 29 (46.77%) Heroku
9 29 (46.77%) REST
9 29 (46.77%) SOAP
9 29 (46.77%) Java 8
10 28 (45.16%) HTML
10 28 (45.16%) CSS
10 28 (45.16%) HTML5
10 28 (45.16%) AngularJS
11 27 (43.55%) GitLab
11 27 (43.55%) MongoDB
11 27 (43.55%) ES6
12 25 (40.32%) Agile Software Development
13 24 (38.71%) Guice
13 24 (38.71%) Domain-Driven Design
13 24 (38.71%) Gradle
13 24 (38.71%) Ratpack

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 23 (37.10%) Elasticsearch
2 20 (32.26%) Apache Spark
3 9 (14.52%) Apache
4 3 (4.84%) Apache Solr
5 2 (3.23%) Skype for Business
6 1 (1.61%) Confluence
6 1 (1.61%) IIS
6 1 (1.61%) JBoss
6 1 (1.61%) nginx
6 1 (1.61%) SharePoint
6 1 (1.61%) SharePoint Server
Business Applications
1 1 (1.61%) Payment Gateway
Cloud Services
1 41 (66.13%) Amazon AWS
2 29 (46.77%) Heroku
3 11 (17.74%) Microsoft Azure
4 7 (11.29%) Apigee
5 3 (4.84%) Google Cloud Platform
6 2 (3.23%) Azure Active Directory
7 1 (1.61%) Amazon EC2
7 1 (1.61%) Amazon S3
7 1 (1.61%) IaaS
7 1 (1.61%) PaaS
7 1 (1.61%) Route 53
7 1 (1.61%) SaaS
7 1 (1.61%) Virtual Private Cloud
Communications & Networking
1 39 (62.90%) DNS
2 37 (59.68%) HTTP
2 37 (59.68%) TCP/IP
3 33 (53.23%) FTP
4 9 (14.52%) Firewall
5 8 (12.90%) VPN
6 7 (11.29%) IPsec
6 7 (11.29%) WAN
6 7 (11.29%) Wireless
7 5 (8.06%) DHCP
7 5 (8.06%) HTTPS
7 5 (8.06%) LAN
7 5 (8.06%) OSPF
8 4 (6.45%) BGP
8 4 (6.45%) Cisco ASA
8 4 (6.45%) Cisco Nexus
8 4 (6.45%) Kerberos
8 4 (6.45%) Network Security
8 4 (6.45%) VoIP
9 3 (4.84%) WLAN
Database & Business Intelligence
1 27 (43.55%) MongoDB
2 22 (35.48%) Apache Cassandra
3 17 (27.42%) PostgreSQL
4 15 (24.19%) Hadoop
5 13 (20.97%) Big Data
6 5 (8.06%) NoSQL
6 5 (8.06%) Redis
7 3 (4.84%) Apache Hive
7 3 (4.84%) HBase
7 3 (4.84%) SQL Server
8 2 (3.23%) MySQL
8 2 (3.23%) Relational Database
9 1 (1.61%) MariaDB
9 1 (1.61%) SQL Server 2016
Development Applications
1 32 (51.61%) Git (software)
2 27 (43.55%) GitLab
3 24 (38.71%) Gradle
4 22 (35.48%) gulp
5 10 (16.13%) Jenkins
6 9 (14.52%) Gatling
6 9 (14.52%) Geb
6 9 (14.52%) Spock
7 7 (11.29%) Maven
8 2 (3.23%) Sonatype Nexus
8 2 (3.23%) Visual Studio
8 2 (3.23%) webpack
9 1 (1.61%) Artifactory
9 1 (1.61%) JIRA
9 1 (1.61%) Vagrant
General
1 5 (8.06%) Banking
1 5 (8.06%) Finance
2 3 (4.84%) Retail Banking
2 3 (4.84%) Telecoms
3 1 (1.61%) Legal
Job Titles
1 38 (61.29%) Developer
2 25 (40.32%) Java Developer
3 13 (20.97%) Agile Developer
3 13 (20.97%) Agile Java Developer
4 9 (14.52%) Technical Leader
5 8 (12.90%) Lead Developer
5 8 (12.90%) Lead Java Developer
5 8 (12.90%) Senior Developer
5 8 (12.90%) Senior Java Developer
5 8 (12.90%) Technical Developer
6 6 (9.68%) Network Engineer
7 5 (8.06%) Ruby Developer
8 4 (6.45%) Architect
8 4 (6.45%) Consultant
9 3 (4.84%) Cisco Engineer
9 3 (4.84%) Cisco Network Engineer
9 3 (4.84%) Full Stack Developer
9 3 (4.84%) Infrastructure Engineer
9 3 (4.84%) Principal Consultant
10 2 (3.23%) Hadoop Consultant
Libraries, Frameworks & Software Standards
1 38 (61.29%) OAuth
2 29 (46.77%) OAuth2
2 29 (46.77%) REST
2 29 (46.77%) SOAP
3 28 (45.16%) AngularJS
3 28 (45.16%) CSS
3 28 (45.16%) HTML
3 28 (45.16%) HTML5
4 24 (38.71%) Dropwizard
4 24 (38.71%) Guice
4 24 (38.71%) Ratpack
5 22 (35.48%) Ember.js
5 22 (35.48%) Spring
5 22 (35.48%) Spring Boot
6 20 (32.26%) Kafka
7 9 (14.52%) Node.js
7 9 (14.52%) SAML
7 9 (14.52%) WireMock
8 6 (9.68%) React
8 6 (9.68%) Ruby on Rails
Miscellaneous
1 7 (11.29%) Mobile App
2 5 (8.06%) Credit Risk
2 5 (8.06%) Fintech
3 4 (6.45%) Analytical Skills
3 4 (6.45%) Linux Command Line
4 3 (4.84%) Data Centre
5 2 (3.23%) Greenfield Project
5 2 (3.23%) Public Cloud
6 1 (1.61%) Cloud Native
6 1 (1.61%) Computer Science
6 1 (1.61%) Distributed Denial-of-Service
6 1 (1.61%) Management Information System
6 1 (1.61%) PKI
6 1 (1.61%) Self-Motivation
Operating Systems
1 39 (62.90%) Linux
2 8 (12.90%) Android
3 7 (11.29%) Apple iOS
3 7 (11.29%) Unix
4 5 (8.06%) Windows
5 4 (6.45%) Red Hat Enterprise Linux
6 3 (4.84%) Windows Server
7 2 (3.23%) CoreOS
8 1 (1.61%) Solaris
8 1 (1.61%) SUSE
8 1 (1.61%) SUSE Linux Enterprise Server
Processes & Methodologies
1 29 (46.77%) Microservices
1 29 (46.77%) OWASP
2 25 (40.32%) Agile Software Development
3 24 (38.71%) Domain-Driven Design
4 16 (25.81%) TDD
5 14 (22.58%) BDD
6 13 (20.97%) Software Engineering
7 10 (16.13%) Digital Transformation Programme
8 8 (12.90%) Identity Access Management
9 7 (11.29%) Configuration Management
9 7 (11.29%) Mobile Application Development
10 6 (9.68%) System Testing
11 5 (8.06%) DevOps
11 5 (8.06%) Functional Programming
11 5 (8.06%) Parallel Computing
11 5 (8.06%) Parallel Processing
12 4 (6.45%) API Development
12 4 (6.45%) Change Management
12 4 (6.45%) Network Architecture
12 4 (6.45%) Refactoring
Programming Languages
1 36 (58.06%) Java
1 36 (58.06%) JavaScript
2 29 (46.77%) Java 8
3 27 (43.55%) ES6
4 22 (35.48%) TypeScript
5 15 (24.19%) Python
6 7 (11.29%) Ruby
7 6 (9.68%) Perl
8 4 (6.45%) Shell Script
8 4 (6.45%) SQL
9 3 (4.84%) C#
10 2 (3.23%) Bash Shell
10 2 (3.23%) C
10 2 (3.23%) PowerShell
11 1 (1.61%) Go
11 1 (1.61%) Kotlin
11 1 (1.61%) PHP
Qualifications
1 6 (9.68%) Cisco Certification
2 4 (6.45%) CCNP
3 3 (4.84%) CCNA
4 2 (3.23%) SC Cleared
4 2 (3.23%) Security Cleared
5 1 (1.61%) CCIE
5 1 (1.61%) CCSP
Quality Assurance & Compliance
1 3 (4.84%) QA
2 2 (3.23%) HL7
3 1 (1.61%) FedRAMP
3 1 (1.61%) HIPAA
3 1 (1.61%) Sarbanes-Oxley
System Software
1 31 (50.00%) Docker
2 7 (11.29%) Active Directory
3 3 (4.84%) Apache Flume
3 3 (4.84%) Apache ZooKeeper
3 3 (4.84%) HDFS
4 1 (1.61%) Hyper-V
4 1 (1.61%) pfSense
4 1 (1.61%) ProxySG
4 1 (1.61%) VMware Infrastructure
Systems Management
1 24 (38.71%) Docker Swarm
2 15 (24.19%) Kubernetes
3 6 (9.68%) Ansible
3 6 (9.68%) Terraform
4 5 (8.06%) Marathon
4 5 (8.06%) Mesos
4 5 (8.06%) Puppet
5 3 (4.84%) Ambari
5 3 (4.84%) Apache Slider
5 3 (4.84%) Hadoop YARN
5 3 (4.84%) Oozie
6 2 (3.23%) Grafana
6 2 (3.23%) Kibana
6 2 (3.23%) logstash
6 2 (3.23%) Rundeck
7 1 (1.61%) CASB
7 1 (1.61%) collectd
7 1 (1.61%) Fluentd
7 1 (1.61%) Graphite
7 1 (1.61%) Prometheus
Vendors
1 10 (16.13%) Google
2 6 (9.68%) Cisco
2 6 (9.68%) Microsoft
3 4 (6.45%) Meraki
3 4 (6.45%) SolarWinds
4 3 (4.84%) F5
4 3 (4.84%) Hortonworks
4 3 (4.84%) IBM
4 3 (4.84%) Palo Alto
4 3 (4.84%) Splunk
5 2 (3.23%) Arista
5 2 (3.23%) Aruba
5 2 (3.23%) CheckPoint
5 2 (3.23%) Empirix
5 2 (3.23%) Ericsson
5 2 (3.23%) Nokia
5 2 (3.23%) Red Hat
6 1 (1.61%) Riverbed
6 1 (1.61%) Symantec
6 1 (1.61%) Trustwave