Period
to 28 October 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 28 October 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
28 Oct 2021
Same period 2020 Same period 2019
Rank 379 292 472
Rank change year-on-year -87 +180 -127
Contract jobs citing SSL 186 85 96
As % of all contract jobs advertised in London 0.51% 0.59% 0.26%
As % of the Communications & Networking category 5.23% 5.35% 2.45%
Number of daily rates quoted 110 58 65
10th Percentile £325 £404 £400
25th Percentile £468 £463 £425
Median daily rate (50th Percentile) £550 £540 £550
Median % change year-on-year +1.85% -1.82% +0.96%
75th Percentile £675 £636 £675
90th Percentile £775 £713 £733
England median daily rate £521 £500 £475
% change year-on-year +4.25% +5.26% -5.00%
Number of hourly rates quoted 0 0 2
Median hourly rate - - £53.75
England median hourly rate £16.50 £40.00 £25.12
% change year-on-year -58.75% +59.24% +9.22%

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 3,555 1,590 3,913
As % of all contract IT jobs advertised in London 9.80% 11.07% 10.71%
Number of daily rates quoted 2,455 1,084 2,707
10th Percentile £282 £263 £200
25th Percentile £413 £398 £338
Median daily rate (50th Percentile) £525 £488 £450
Median % change year-on-year +7.69% +8.33% -
75th Percentile £650 £575 £575
90th Percentile £725 £650 £661
England median daily rate £475 £450 £425
% change year-on-year +5.56% +5.88% -
Number of hourly rates quoted 67 19 100
10th Percentile £11.25 £19.00 £13.99
25th Percentile £13.75 £22.75 £17.19
Median hourly rate £23.00 £28.00 £21.50
Median % change year-on-year -17.86% +30.23% +10.26%
75th Percentile £37.75 £41.88 £47.13
90th Percentile £55.25 £58.60 £53.75
England median hourly rate £20.51 £31.50 £25.12
% change year-on-year -34.89% +25.40% +32.21%

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 28 October 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 28 October 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
Central London -68 5 £554 -3.70% 7
South London -2 2 £675 +46.74%
East London -14 1 - - 4
North London - 1 £405 -
SSL
England

For the 6 months to 28 October 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 78 (41.94%) Linux
2 60 (32.26%) Firewall
3 54 (29.03%) SQL
4 52 (27.96%) TCP/IP
5 49 (26.34%) DNS
6 48 (25.81%) Python
6 48 (25.81%) Finance
7 47 (25.27%) Agile Software Development
8 45 (24.19%) Java
8 45 (24.19%) Ansible
9 43 (23.12%) DevOps
10 42 (22.58%) Social Skills
11 41 (22.04%) Kubernetes
12 40 (21.51%) VMware
13 39 (20.97%) Banking
13 39 (20.97%) Azure
14 38 (20.43%) Scrum
14 38 (20.43%) Windows
15 37 (19.89%) Oracle
15 37 (19.89%) Microsoft
16 36 (19.35%) Docker
17 35 (18.82%) AWS
17 35 (18.82%) OAuth
17 35 (18.82%) VPN
18 34 (18.28%) Terraform
19 31 (16.67%) Apache
19 31 (16.67%) IaaS
19 31 (16.67%) Cybersecurity
20 29 (15.59%) Performance Tuning
20 29 (15.59%) PKI

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 31 (16.67%) Apache
2 25 (13.44%) Tomcat
3 19 (10.22%) OpenStack
4 17 (9.14%) IIS
5 12 (6.45%) nginx
6 8 (4.30%) WebLogic
6 8 (4.30%) WebSphere
7 4 (2.15%) Confluence
7 4 (2.15%) MS Exchange
8 3 (1.61%) JBoss
8 3 (1.61%) WebSphere Application Server
9 2 (1.08%) Adobe Experience Manager
9 2 (1.08%) CMS
9 2 (1.08%) Documentum
9 2 (1.08%) SharePoint
10 1 (0.54%) Apache Spark
10 1 (0.54%) Elasticsearch
10 1 (0.54%) IBM HTTP Server
10 1 (0.54%) Jetty
10 1 (0.54%) Mule
Applications
1 10 (5.38%) Microsoft Excel
1 10 (5.38%) MS Visio
2 9 (4.84%) Microsoft Office
3 6 (3.23%) Microsoft Project
4 5 (2.69%) Microsoft PowerPoint
4 5 (2.69%) Spreadsheet
Business Applications
1 3 (1.61%) Sentinel
2 1 (0.54%) ION MarketView
2 1 (0.54%) Loan IQ
Cloud Services
1 39 (20.97%) Azure
2 35 (18.82%) AWS
3 31 (16.67%) IaaS
4 27 (14.52%) PaaS
5 17 (9.14%) Amazon EC2
5 17 (9.14%) Microsoft 365
6 15 (8.06%) SaaS
7 13 (6.99%) Apigee
7 13 (6.99%) Virtual Private Cloud
8 12 (6.45%) Amazon S3
8 12 (6.45%) GCP
9 10 (5.38%) Route 53
10 8 (4.30%) Cloudflare
11 7 (3.76%) Cloud Computing
12 6 (3.23%) AWS CloudFormation
13 5 (2.69%) Google Workspace
13 5 (2.69%) Kong
14 4 (2.15%) Azure Sentinel
14 4 (2.15%) Cloud Functions
14 4 (2.15%) Google Compute Engine
Communications & Networking
1 60 (32.26%) Firewall
2 52 (27.96%) TCP/IP
3 49 (26.34%) DNS
4 35 (18.82%) VPN
5 28 (15.05%) IPsec
6 20 (10.75%) HTTP
7 16 (8.60%) Kerberos
8 13 (6.99%) IKE
9 12 (6.45%) DHCP
10 8 (4.30%) FTP
10 8 (4.30%) HTTPS
10 8 (4.30%) SAN
10 8 (4.30%) SMTP
10 8 (4.30%) WAN
11 7 (3.76%) Internet
11 7 (3.76%) IPv4
11 7 (3.76%) LAN
11 7 (3.76%) NAS
12 6 (3.23%) Network Security
12 6 (3.23%) VLAN
Database & Business Intelligence
1 25 (13.44%) Redis
2 24 (12.90%) Hazelcast
3 17 (9.14%) MySQL
4 14 (7.53%) Amazon RDS
5 9 (4.84%) SQL Server
6 6 (3.23%) Couchbase
6 6 (3.23%) Hadoop
6 6 (3.23%) MongoDB
6 6 (3.23%) PostgreSQL
7 4 (2.15%) Bigtable
7 4 (2.15%) Oracle Database
8 3 (1.61%) NoSQL
9 2 (1.08%) Oracle BI EE
9 2 (1.08%) Oracle ODI
9 2 (1.08%) Relational Database
10 1 (0.54%) Apache Cassandra
10 1 (0.54%) Azure SQL Database
10 1 (0.54%) Big Data
10 1 (0.54%) Data Warehouse
10 1 (0.54%) RDBMS
Development Applications
1 16 (8.60%) Jenkins
2 15 (8.06%) Sonatype Nexus
3 13 (6.99%) Git (software)
4 10 (5.38%) JIRA
5 7 (3.76%) fastlane
5 7 (3.76%) Flyway
5 7 (3.76%) Gradle
6 5 (2.69%) IBM UrbanCode
7 4 (2.15%) Bitbucket
7 4 (2.15%) Subversion
8 3 (1.61%) GitLab
8 3 (1.61%) VSS/SourceSafe
9 2 (1.08%) Maven
9 2 (1.08%) SonarQube
10 1 (0.54%) Artifactory
10 1 (0.54%) Atlassian Bamboo
10 1 (0.54%) Introscope
10 1 (0.54%) Visual Studio
General
1 48 (25.81%) Finance
2 42 (22.58%) Social Skills
3 39 (20.97%) Banking
4 27 (14.52%) Investment Banking
5 19 (10.22%) Telecoms
6 17 (9.14%) Games
7 13 (6.99%) Front Office
8 10 (5.38%) Public Sector
9 7 (3.76%) Analytical Skills
10 6 (3.23%) Presentation Skills
11 4 (2.15%) Organisational Skills
12 3 (1.61%) Publishing
13 2 (1.08%) Legal
13 2 (1.08%) Military
14 1 (0.54%) Documentation Skills
14 1 (0.54%) Financial Institution
14 1 (0.54%) Local Government
Job Titles
1 35 (18.82%) Developer
2 28 (15.05%) Architect
3 27 (14.52%) Java Developer
4 24 (12.90%) Senior Developer
4 24 (12.90%) Senior Java Developer
5 23 (12.37%) Security Engineer
6 20 (10.75%) DevOps Engineer
7 13 (6.99%) Security Architect
8 12 (6.45%) Design Engineer
8 12 (6.45%) Investment Banking Java Developer
8 12 (6.45%) Lead Architect
8 12 (6.45%) Lead Security Architect
8 12 (6.45%) Senior Investment Banking Java Developer
9 10 (5.38%) Cloud Engineer
10 9 (4.84%) Network Engineer
11 8 (4.30%) Analyst
11 8 (4.30%) Technical Architect
12 7 (3.76%) Active Directory Engineer
12 7 (3.76%) Administrator
12 7 (3.76%) Azure Engineer
Libraries, Frameworks & Software Standards
1 35 (18.82%) OAuth
2 28 (15.05%) Spring
3 27 (14.52%) RESTful
3 27 (14.52%) Spring Boot
4 24 (12.90%) LDAP
4 24 (12.90%) Memcached
4 24 (12.90%) OAuth2
5 18 (9.68%) SAML
6 16 (8.60%) Kafka
7 14 (7.53%) RabbitMQ
7 14 (7.53%) SPNEGO
8 11 (5.91%) OpenID
9 10 (5.38%) .NET
9 10 (5.38%) JMS
9 10 (5.38%) XML
10 9 (4.84%) LAMP
10 9 (4.84%) REST
11 7 (3.76%) Node.js
11 7 (3.76%) SailPoint
11 7 (3.76%) SOAP
Miscellaneous
1 29 (15.59%) PKI
2 25 (13.44%) Foreign Exchange (FX)
3 24 (12.90%) Algorithms
3 24 (12.90%) Data Structures
3 24 (12.90%) Derivative
4 16 (8.60%) Fixed Income
5 13 (6.99%) Private Cloud
6 12 (6.45%) Mobile App
7 11 (5.91%) Data Centre
8 9 (4.84%) Greenfield Project
9 8 (4.30%) Clustering
10 6 (3.23%) Linux Command Line
11 5 (2.69%) Self-Motivation
11 5 (2.69%) Wiki
12 4 (2.15%) Public Cloud
13 3 (1.61%) Driving Licence
13 3 (1.61%) Enterprise Software
13 3 (1.61%) User Experience
13 3 (1.61%) Virtual Team
14 2 (1.08%) Distributed Denial-of-Service
Operating Systems
1 78 (41.94%) Linux
2 38 (20.43%) Windows
3 19 (10.22%) Windows Server
4 17 (9.14%) Unix
5 10 (5.38%) Windows 10
6 9 (4.84%) Windows Server 2008
6 9 (4.84%) Windows Server 2012
7 8 (4.30%) Red Hat Enterprise Linux
8 6 (3.23%) Debian
9 5 (2.69%) Windows Server 2016
10 4 (2.15%) Ubuntu
10 4 (2.15%) Windows Server 2019
11 1 (0.54%) AIX
11 1 (0.54%) Android
11 1 (0.54%) CentOS
11 1 (0.54%) Solaris
11 1 (0.54%) Windows 7
Processes & Methodologies
1 47 (25.27%) Agile Software Development
2 43 (23.12%) DevOps
3 38 (20.43%) Scrum
4 31 (16.67%) Cybersecurity
5 29 (15.59%) Performance Tuning
6 26 (13.98%) API Development
7 25 (13.44%) Multithreading
8 24 (12.90%) API Design
8 24 (12.90%) Functional Programming
9 23 (12.37%) Infrastructure as Code
10 19 (10.22%) Load Balancing
11 17 (9.14%) Identity Access Management
11 17 (9.14%) ITIL
12 15 (8.06%) Vulnerability Management
13 14 (7.53%) Data Loss Prevention
13 14 (7.53%) High Availability
13 14 (7.53%) Password Management
13 14 (7.53%) Test Automation
14 13 (6.99%) Migration
15 11 (5.91%) Project Management
Programming Languages
1 54 (29.03%) SQL
2 48 (25.81%) Python
3 45 (24.19%) Java
4 27 (14.52%) Java 8
5 25 (13.44%) Scala
6 24 (12.90%) Haskell
6 24 (12.90%) PL/SQL
7 19 (10.22%) Bash Shell
8 18 (9.68%) PowerShell
9 12 (6.45%) Shell Script
10 10 (5.38%) Groovy
11 9 (4.84%) JavaScript
12 5 (2.69%) C#
12 5 (2.69%) VBScript
13 3 (1.61%) Perl
13 3 (1.61%) Ruby
14 2 (1.08%) C
14 2 (1.08%) Kotlin
15 1 (0.54%) Java 9
15 1 (0.54%) T-SQL
Qualifications
1 12 (6.45%) Degree
2 10 (5.38%) Cisco Certification
2 10 (5.38%) Security Cleared
3 9 (4.84%) SC Cleared
4 8 (4.30%) CCNP
5 6 (3.23%) CCNA
5 6 (3.23%) CISSP
5 6 (3.23%) ITIL Certification
6 4 (2.15%) RHCE
7 3 (1.61%) Computer Science Degree
7 3 (1.61%) DV Cleared
8 2 (1.08%) AWS Certification
8 2 (1.08%) MCTS
8 2 (1.08%) Microsoft Certification
9 1 (0.54%) CCIE
9 1 (0.54%) CCSP
9 1 (0.54%) CEH
9 1 (0.54%) CISM
9 1 (0.54%) GIAC
9 1 (0.54%) Novell Certification
Quality Assurance & Compliance
1 4 (2.15%) NCSC
1 4 (2.15%) QA
2 2 (1.08%) SLA
3 1 (0.54%) GDPR
3 1 (0.54%) ISO/IEC 27001
3 1 (0.54%) Sarbanes-Oxley
System Software
1 36 (19.35%) Docker
2 28 (15.05%) Active Directory
3 19 (10.22%) vCloud
4 17 (9.14%) VMware Infrastructure
5 13 (6.99%) VMware Workstation
6 8 (4.30%) Active Directory Lightweight Directory Services
7 6 (3.23%) Virtual Servers
8 5 (2.69%) NFS
9 4 (2.15%) Virtual Machines
10 2 (1.08%) IAG
10 2 (1.08%) OpenDJ
10 2 (1.08%) VMware ESXi
10 2 (1.08%) VMware NSX
10 2 (1.08%) XenDesktop
11 1 (0.54%) Hyper-V
11 1 (0.54%) OCFS2
11 1 (0.54%) OpenAM
11 1 (0.54%) RACF
11 1 (0.54%) Samba
11 1 (0.54%) Terminal Services
Systems Management
1 45 (24.19%) Ansible
2 41 (22.04%) Kubernetes
3 34 (18.28%) Terraform
4 13 (6.99%) Single Sign-On
5 12 (6.45%) Active Directory Federation Services
6 9 (4.84%) Docker Swarm
6 9 (4.84%) Opscode Chef
7 7 (3.76%) CA Single Sign-On
7 7 (3.76%) HAProxy
7 7 (3.76%) Istio
7 7 (3.76%) Prometheus
8 6 (3.23%) Consul
8 6 (3.23%) Fluentd
8 6 (3.23%) FortiGate
8 6 (3.23%) Grafana
8 6 (3.23%) Nagios
8 6 (3.23%) ZABBIX
9 3 (1.61%) BMC PATROL
9 3 (1.61%) SCCM
10 2 (1.08%) Tivoli
Vendors
1 40 (21.51%) VMware
2 37 (19.89%) Microsoft
2 37 (19.89%) Oracle
3 26 (13.98%) CA
4 18 (9.68%) Red Hat
5 16 (8.60%) F5
6 14 (7.53%) Cisco
6 14 (7.53%) Google
7 13 (6.99%) IBM
8 10 (5.38%) CheckPoint
8 10 (5.38%) Palo Alto
8 10 (5.38%) ServiceNow
9 9 (4.84%) Citrix
10 8 (4.30%) CyberArk
11 7 (3.76%) AppDynamics
11 7 (3.76%) Splunk
12 6 (3.23%) BMC
12 6 (3.23%) Salesforce.com
12 6 (3.23%) Sonatype
13 5 (2.69%) Dynatrace