Period
to 25 July 2021

The following table provides summary statistics for contract job vacancies advertised in 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 July 2021 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)
England > London
6 months to
25 Jul 2021
Same period 2020 Same period 2019
Rank 350 270 447
Rank change year-on-year -80 +177 -124
Contract jobs citing SSL 168 112 162
As % of all contract jobs advertised in London 0.57% 0.69% 0.40%
As % of the Communications & Networking category 6.07% 6.37% 3.86%
Number of daily rates quoted 99 79 112
10th Percentile £324 £404 £400
25th Percentile £425 £482 £457
Median daily rate (50th Percentile) £520 £550 £550
Median % change year-on-year -5.45% - -
75th Percentile £586 £663 £614
90th Percentile £638 £730 £675
England median daily rate £500 £525 £525
% change year-on-year -4.76% - +5.00%

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 London with a requirement for communications or computer networking skills.

All Communications and Computer Networking Skills
London
Contract vacancies with a requirement for communications or computer networking skills 2,766 1,757 4,192
As % of all contract IT jobs advertised in London 9.34% 10.82% 10.35%
Number of daily rates quoted 1,885 1,220 2,869
10th Percentile £297 £255 £217
25th Percentile £400 £363 £363
Median daily rate (50th Percentile) £500 £470 £475
Median % change year-on-year +6.38% -1.05% +5.56%
75th Percentile £613 £575 £575
90th Percentile £700 £657 £656
England median daily rate £450 £450 £425
% change year-on-year - +5.88% -
Number of hourly rates quoted 35 44 100
10th Percentile £13.10 £15.08 £13.86
25th Percentile £20.00 £24.63 £17.81
Median hourly rate £30.00 £40.75 £21.75
Median % change year-on-year -26.38% +87.36% +8.75%
75th Percentile £51.88 £47.83 £43.20
90th Percentile £69.80 £53.38 £51.38
England median hourly rate £22.00 £23.50 £21.00
% change year-on-year -6.38% +11.90% +5.00%

SSL
Job Vacancy Trend in London

Job postings citing SSL as a proportion of all IT jobs advertised in London.

Job vacancy trend for SSL in London

SSL
Contractor Daily Rate Trend in London

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

Daily rate trend for SSL in London

SSL
Daily Rate Histogram in London

Daily rate distribution for jobs citing SSL in London over the 6 months to 25 July 2021.

Daily rate histogram for SSL in London

SSL
Contractor Hourly Rate Trend in London

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

Hourly rate trend for SSL in London

SSL
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing SSL within the London region over the 6 months to 25 July 2021. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
South London +21 3 £675 +46.74% 3
Central London -40 2 £628 +0.40% 5
East London +4 1 - - 3
North London - 1 £405 -
SSL
England

For the 6 months to 25 July 2021, 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 London region with a requirement for SSL.

1 62 (36.90%) Linux
2 61 (36.31%) TCP/IP
3 60 (35.71%) Agile Software Development
4 57 (33.93%) Java
5 52 (30.95%) SQL
5 52 (30.95%) AWS
6 50 (29.76%) Finance
7 49 (29.17%) Firewall
7 49 (29.17%) Banking
8 45 (26.79%) DevOps
9 43 (25.60%) Scrum
10 40 (23.81%) Python
11 35 (20.83%) Oracle
11 35 (20.83%) DNS
11 35 (20.83%) RESTful
12 33 (19.64%) Azure
12 33 (19.64%) Spring Boot
12 33 (19.64%) Spring
13 32 (19.05%) Scala
13 32 (19.05%) Java 8
14 31 (18.45%) Performance Tuning
15 30 (17.86%) Data Structures
15 30 (17.86%) Multithreading
16 29 (17.26%) Algorithms
16 29 (17.26%) API Development
17 28 (16.67%) Investment Banking
17 28 (16.67%) Social Skills
18 27 (16.07%) Foreign Exchange (FX)
18 27 (16.07%) PL/SQL
18 27 (16.07%) API Design

SSL
Co-occurring IT Skills in 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 22 (13.10%) Apache
2 21 (12.50%) Tomcat
3 19 (11.31%) IIS
4 15 (8.93%) WebSphere
5 9 (5.36%) Confluence
5 9 (5.36%) nginx
6 8 (4.76%) WebLogic
7 7 (4.17%) WebSphere Application Server
8 5 (2.98%) Apache Spark
8 5 (2.98%) WordPress
9 3 (1.79%) Apache Airflow
9 3 (1.79%) Jetty
9 3 (1.79%) Mongrel
9 3 (1.79%) MS Exchange
9 3 (1.79%) WebLogic Portal
10 2 (1.19%) Adobe Experience Manager
10 2 (1.19%) CMS
10 2 (1.19%) Red Hat Fuse
10 2 (1.19%) SharePoint
11 1 (0.60%) Mule
Applications
1 12 (7.14%) MS Visio
2 10 (5.95%) Microsoft Office
3 6 (3.57%) Microsoft Excel
4 5 (2.98%) Microsoft PowerPoint
4 5 (2.98%) Microsoft Project
4 5 (2.98%) Spreadsheet
Business Applications
1 2 (1.19%) Sentinel
2 1 (0.60%) Loan IQ
Cloud Services
1 52 (30.95%) AWS
2 33 (19.64%) Azure
3 17 (10.12%) Virtual Private Cloud
4 15 (8.93%) GCP
5 13 (7.74%) IaaS
6 10 (5.95%) Amazon EC2
7 7 (4.17%) Amazon S3
7 7 (4.17%) Apigee
7 7 (4.17%) Azure ExpressRoute
7 7 (4.17%) Microsoft 365
8 6 (3.57%) Route 53
9 5 (2.98%) Cloudflare
9 5 (2.98%) Google Workspace
9 5 (2.98%) Kong
10 4 (2.38%) Amazon CloudWatch
10 4 (2.38%) Firebase
10 4 (2.38%) Flurry Analytics
10 4 (2.38%) GitHub
10 4 (2.38%) PubNub
11 3 (1.79%) AWS CloudFormation
Communications & Networking
1 61 (36.31%) TCP/IP
2 49 (29.17%) Firewall
3 35 (20.83%) DNS
4 23 (13.69%) VPN
5 21 (12.50%) HTTP
6 13 (7.74%) IPsec
7 12 (7.14%) DHCP
7 12 (7.14%) Kerberos
8 11 (6.55%) BGP
8 11 (6.55%) FTP
8 11 (6.55%) OSPF
8 11 (6.55%) SMTP
9 10 (5.95%) EIGRP
9 10 (5.95%) HSRP
9 10 (5.95%) MPLS
9 10 (5.95%) WAN
10 9 (5.36%) Internet
10 9 (5.36%) SSH
11 8 (4.76%) DWDM
11 8 (4.76%) RIP
Database & Business Intelligence
1 27 (16.07%) Hazelcast
1 27 (16.07%) Redis
2 8 (4.76%) Amazon RDS
3 7 (4.17%) MySQL
4 6 (3.57%) NoSQL
5 5 (2.98%) SQL Server
6 4 (2.38%) Mixpanel
7 3 (1.79%) Apache Hive
7 3 (1.79%) Cloudera CDH
7 3 (1.79%) HBase
7 3 (1.79%) MongoDB
7 3 (1.79%) Parquet
7 3 (1.79%) Relational Database
8 2 (1.19%) Data Warehouse
9 1 (0.60%) Big Data
9 1 (0.60%) Blockchain
9 1 (0.60%) Data Lake
9 1 (0.60%) RDBMS
9 1 (0.60%) SQL Server Integration Services
9 1 (0.60%) SQL Server Reporting Services
Development Applications
1 20 (11.90%) Jenkins
2 17 (10.12%) Git (software)
3 15 (8.93%) JIRA
4 9 (5.36%) IBM UrbanCode
5 8 (4.76%) Sonatype Nexus
6 6 (3.57%) fastlane
6 6 (3.57%) Flyway
6 6 (3.57%) Gradle
7 5 (2.98%) gulp
8 3 (1.79%) Travis CI
9 2 (1.19%) Bitbucket
10 1 (0.60%) Introscope
10 1 (0.60%) Maven
10 1 (0.60%) Subversion
10 1 (0.60%) Visual Studio
10 1 (0.60%) VSS/SourceSafe
General
1 50 (29.76%) Finance
2 49 (29.17%) Banking
3 28 (16.67%) Investment Banking
3 28 (16.67%) Social Skills
4 16 (9.52%) Front Office
5 9 (5.36%) Public Sector
6 8 (4.76%) Presentation Skills
7 6 (3.57%) Retail Banking
8 5 (2.98%) Analytical Skills
9 3 (1.79%) Organisational Skills
9 3 (1.79%) Telecoms
10 1 (0.60%) Documentation Skills
10 1 (0.60%) Local Government
Job Titles
1 42 (25.00%) Developer
2 31 (18.45%) Java Developer
3 28 (16.67%) Senior Developer
4 27 (16.07%) Senior Java Developer
5 15 (8.93%) Architect
5 15 (8.93%) DevOps Engineer
6 12 (7.14%) Consultant
7 11 (6.55%) Investment Banking Java Developer
7 11 (6.55%) Network Engineer
7 11 (6.55%) Senior Investment Banking Java Developer
8 7 (4.17%) AWS Engineer
9 6 (3.57%) Analyst
9 6 (3.57%) Applications Specialist
9 6 (3.57%) Applications Support
9 6 (3.57%) Server Specialist
10 5 (2.98%) Bid Manager
10 5 (2.98%) Lead Developer
10 5 (2.98%) Network Security Engineer
10 5 (2.98%) Security Engineer
10 5 (2.98%) Security Specialist
Libraries, Frameworks & Software Standards
1 35 (20.83%) RESTful
2 33 (19.64%) Spring
2 33 (19.64%) Spring Boot
3 27 (16.07%) Memcached
4 20 (11.90%) Kafka
5 18 (10.71%) XML
6 14 (8.33%) Node.js
6 14 (8.33%) SOAP
7 13 (7.74%) LDAP
7 13 (7.74%) REST
7 13 (7.74%) Web Services
8 10 (5.95%) HTML
8 10 (5.95%) OAuth
9 9 (5.36%) SAML
10 8 (4.76%) JSON
10 8 (4.76%) OpenID
11 7 (4.17%) .NET
11 7 (4.17%) Express
11 7 (4.17%) OAuth2
11 7 (4.17%) SPNEGO
Miscellaneous
1 30 (17.86%) Data Structures
2 29 (17.26%) Algorithms
3 27 (16.07%) Derivative
3 27 (16.07%) Foreign Exchange (FX)
4 14 (8.33%) PKI
5 13 (7.74%) Fixed Income
5 13 (7.74%) Mobile App
6 8 (4.76%) Data Centre
7 6 (3.57%) Public Cloud
8 5 (2.98%) Self-Motivation
8 5 (2.98%) Wiki
9 3 (1.79%) Clustering
9 3 (1.79%) DataPower
9 3 (1.79%) Driving Licence
10 2 (1.19%) Data Protection Act
10 2 (1.19%) Greenfield Project
10 2 (1.19%) Management Information System
10 2 (1.19%) Social Media
11 1 (0.60%) Cloud Native
11 1 (0.60%) Digital Currency
Operating Systems
1 62 (36.90%) Linux
2 26 (15.48%) Windows
3 11 (6.55%) Unix
4 10 (5.95%) Windows Server
5 6 (3.57%) Windows 10
6 5 (2.98%) Android
7 3 (1.79%) Windows Server 2016
7 3 (1.79%) Windows Server 2019
8 2 (1.19%) Red Hat Enterprise Linux
9 1 (0.60%) Apple iOS
9 1 (0.60%) Embedded Linux
9 1 (0.60%) FreeBSD
9 1 (0.60%) Solaris
9 1 (0.60%) Ubuntu
9 1 (0.60%) Windows 7
9 1 (0.60%) Windows Server 2008
9 1 (0.60%) Windows Server 2012
Processes & Methodologies
1 60 (35.71%) Agile Software Development
2 45 (26.79%) DevOps
3 43 (25.60%) Scrum
4 31 (18.45%) Performance Tuning
5 30 (17.86%) Multithreading
6 29 (17.26%) API Development
7 27 (16.07%) API Design
7 27 (16.07%) Functional Programming
8 15 (8.93%) High Availability
8 15 (8.93%) Infrastructure as Code
9 13 (7.74%) ITIL
10 12 (7.14%) Cybersecurity
10 12 (7.14%) Project Management
11 10 (5.95%) Computer Science
11 10 (5.95%) Configuration Management
11 10 (5.95%) Continuous Integration
11 10 (5.95%) Kanban
11 10 (5.95%) Microservices
12 9 (5.36%) Migration
12 9 (5.36%) Web Development
Programming Languages
1 57 (33.93%) Java
2 52 (30.95%) SQL
3 40 (23.81%) Python
4 32 (19.05%) Java 8
4 32 (19.05%) Scala
5 27 (16.07%) Haskell
5 27 (16.07%) PL/SQL
6 11 (6.55%) Bash Shell
6 11 (6.55%) JavaScript
7 10 (5.95%) PowerShell
8 8 (4.76%) Shell Script
9 7 (4.17%) Groovy
10 6 (3.57%) Kotlin
10 6 (3.57%) PHP
11 5 (2.98%) VBScript
12 4 (2.38%) Ruby
13 2 (1.19%) C
13 2 (1.19%) Perl
13 2 (1.19%) TypeScript
14 1 (0.60%) Go
Qualifications
1 16 (9.52%) Cisco Certification
2 14 (8.33%) CCNP
3 13 (7.74%) SC Cleared
3 13 (7.74%) Security Cleared
4 9 (5.36%) Degree
5 8 (4.76%) CISSP
6 7 (4.17%) CCNA
7 5 (2.98%) ITIL Certification
8 4 (2.38%) AWS Certification
9 3 (1.79%) CISM
9 3 (1.79%) Computer Science Degree
9 3 (1.79%) DV Cleared
10 2 (1.19%) (ISC)2 CCSP
10 2 (1.19%) CCIE
10 2 (1.19%) CCSP
10 2 (1.19%) GIAC
11 1 (0.60%) CCDA
11 1 (0.60%) CCDP
11 1 (0.60%) Microsoft Certification
11 1 (0.60%) RHCE
Quality Assurance & Compliance
1 7 (4.17%) SLA
2 4 (2.38%) NCSC
3 3 (1.79%) QA
4 2 (1.19%) Sarbanes-Oxley
5 1 (0.60%) Accessibility
5 1 (0.60%) ISO/IEC 27001
System Software
1 19 (11.31%) Docker
2 18 (10.71%) VMware Infrastructure
3 15 (8.93%) Active Directory
4 6 (3.57%) Virtual Servers
5 4 (2.38%) NFS
6 3 (1.79%) Virtual Machines
6 3 (1.79%) Xen
7 1 (0.60%) Firmware
7 1 (0.60%) IAG
7 1 (0.60%) OpenAM
7 1 (0.60%) OpenDJ
7 1 (0.60%) ProxySG
7 1 (0.60%) RACF
7 1 (0.60%) Samba
7 1 (0.60%) Terminal Server
7 1 (0.60%) VMware ESXi
7 1 (0.60%) VMware NSX
Systems Management
1 22 (13.10%) Ansible
2 18 (10.71%) Kubernetes
3 16 (9.52%) Terraform
4 10 (5.95%) Single Sign-On
5 8 (4.76%) HP NNM
6 6 (3.57%) CA Single Sign-On
6 6 (3.57%) Docker Swarm
6 6 (3.57%) FortiGate
6 6 (3.57%) Nagios
7 4 (2.38%) Opscode Chef
7 4 (2.38%) Puppet
8 3 (1.79%) Oozie
9 2 (1.19%) Active Directory Federation Services
9 2 (1.19%) Cisco Prime
9 2 (1.19%) Istio
9 2 (1.19%) Prometheus
9 2 (1.19%) SolarWinds Orion
9 2 (1.19%) ZABBIX
9 2 (1.19%) Zipkin
10 1 (0.60%) Failover Clustering
Vendors
1 35 (20.83%) Oracle
2 23 (13.69%) Microsoft
3 19 (11.31%) VMware
4 15 (8.93%) Cisco
4 15 (8.93%) Google
5 14 (8.33%) F5
6 12 (7.14%) Juniper
7 10 (5.95%) IBM
7 10 (5.95%) ServiceNow
8 9 (5.36%) CheckPoint
8 9 (5.36%) Splunk
9 8 (4.76%) CA
9 8 (4.76%) HP
9 8 (4.76%) Palo Alto
10 7 (4.17%) Citrix
10 7 (4.17%) Confluent
10 7 (4.17%) Red Hat
11 6 (3.57%) BMC
12 5 (2.98%) AppDynamics
12 5 (2.98%) Salesforce.com