Period
to 25 September 2021

The table below looks at the prevalence of the term PKI in permanent job vacancies advertised in London. Included is a benchmarking guide to the salaries offered in vacancies that have cited PKI over the 6 months to 25 September 2021 with a comparison to the same period over the previous 2 years.

Public-Key Infrastructure (PKI)
England > London
6 months to
25 Sep 2021
Same period 2020 Same period 2019
Rank 609 435 630
Rank change year-on-year -174 +195 -32
Permanent jobs citing PKI 100 47 121
As % of all permanent jobs advertised in London 0.20% 0.23% 0.22%
As % of the Miscellaneous category 0.46% 0.58% 0.57%
Number of salaries quoted 73 39 91
10th Percentile £38,408 £54,350 £47,500
25th Percentile £50,000 £66,250 £58,750
Median annual salary (50th Percentile) £55,000 £80,000 £75,000
Median % change year-on-year -31.25% +6.67% +25.00%
75th Percentile £82,500 £87,500 £96,250
90th Percentile £85,000 £100,250 £110,000
England median annual salary £55,000 £57,000 £58,500
% change year-on-year -3.51% -2.56% +1.74%

PKI is in the Generic IT Skills category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in London with a requirement for generic IT skills.

All Generic IT Skills
London
Permanent vacancies with a requirement for generic IT skills 21,710 8,166 21,074
As % of all permanent IT jobs advertised in London 44.28% 40.64% 37.76%
Number of salaries quoted 12,725 6,789 16,628
10th Percentile £42,500 £42,500 £36,250
25th Percentile £53,750 £55,000 £47,500
Median annual salary (50th Percentile) £72,500 £72,500 £65,000
Median % change year-on-year - +11.54% -
75th Percentile £92,500 £95,000 £85,000
90th Percentile £112,500 £120,000 £105,000
England median annual salary £60,000 £60,000 £55,000
% change year-on-year - +9.09% +4.76%

PKI
Job Vacancy Trend in London

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

Job vacancy trend for PKI in London

PKI
Salary Trend in London

3-month moving average salary quoted in jobs citing PKI in London.

Salary trend for PKI in London

PKI
Salary Histogram in London

Salary distribution for jobs citing PKI in London over the 6 months to 25 September 2021.

Salary histogram for PKI in London

PKI
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing PKI within the London region over the 6 months to 25 September 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
South London - 8 £62,500 -
Central London -58 7 £76,250 +32.61% 3
West London -72 5 - - 2
East London - 1 £51,000 -
PKI
England

For the 6 months to 25 September 2021, IT jobs citing PKI also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the London region with a requirement for PKI.

1 64 (64.00%) Linux
2 61 (61.00%) Active Directory
3 50 (50.00%) Azure
4 46 (46.00%) Windows
5 40 (40.00%) Azure Active Directory
6 38 (38.00%) VMware
7 34 (34.00%) DNS
8 32 (32.00%) Agile Software Development
9 29 (29.00%) TCP/IP
9 29 (29.00%) SQL Server
10 27 (27.00%) Microsoft
10 27 (27.00%) Finance
10 27 (27.00%) Microsoft 365
11 24 (24.00%) Change Control
11 24 (24.00%) Degree
11 24 (24.00%) IIS
12 23 (23.00%) SQL
12 23 (23.00%) Unix
12 23 (23.00%) Python
13 22 (22.00%) Java
13 22 (22.00%) VMware Infrastructure
13 22 (22.00%) PowerShell
13 22 (22.00%) DevOps
14 21 (21.00%) SCCM
14 21 (21.00%) Red Hat
15 20 (20.00%) MS Exchange
15 20 (20.00%) Infrastructure Engineering
16 19 (19.00%) Windows Server
16 19 (19.00%) Docker
16 19 (19.00%) vSphere

PKI
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 24 (24.00%) IIS
2 20 (20.00%) MS Exchange
3 17 (17.00%) Apache
4 13 (13.00%) SharePoint
5 4 (4.00%) Blackberry Enterprise Server
5 4 (4.00%) Skype for Business
5 4 (4.00%) WebSphere
5 4 (4.00%) WebSphere Application Server
6 2 (2.00%) Confluence
7 1 (1.00%) Elasticsearch
7 1 (1.00%) Exchange Server 2013
Applications
1 2 (2.00%) Microsoft Office
Cloud Services
1 50 (50.00%) Azure
2 40 (40.00%) Azure Active Directory
3 27 (27.00%) Microsoft 365
4 15 (15.00%) Azure Stack
5 10 (10.00%) OneDrive
6 9 (9.00%) AWS
7 5 (5.00%) GitHub
7 5 (5.00%) IaaS
7 5 (5.00%) PaaS
7 5 (5.00%) SaaS
8 4 (4.00%) Amazon EKS
8 4 (4.00%) Slack
9 1 (1.00%) Amazon CloudWatch
9 1 (1.00%) Amazon GuardDuty
9 1 (1.00%) Azure Key Vault
9 1 (1.00%) GCP
9 1 (1.00%) Google Workspace
9 1 (1.00%) OpenShift
Communications & Networking
1 34 (34.00%) DNS
2 29 (29.00%) TCP/IP
3 16 (16.00%) SSL
4 15 (15.00%) Firewall
5 14 (14.00%) DHCP
6 12 (12.00%) HTTP
7 5 (5.00%) VPN
8 4 (4.00%) Skype
8 4 (4.00%) WAN
9 3 (3.00%) BIG-IP
9 3 (3.00%) LAN
9 3 (3.00%) MPLS
9 3 (3.00%) NetScaler
9 3 (3.00%) SAN
10 2 (2.00%) Cisco ASA
10 2 (2.00%) F5 BIG-IP LTM
10 2 (2.00%) Network Security
10 2 (2.00%) X.509
11 1 (1.00%) SD-WAN
11 1 (1.00%) VSAN
Database & Business Intelligence
1 29 (29.00%) SQL Server
2 11 (11.00%) PostgreSQL
3 10 (10.00%) MySQL
4 9 (9.00%) MongoDB
5 7 (7.00%) NoSQL
6 5 (5.00%) Apache Cassandra
7 4 (4.00%) Couchbase
8 1 (1.00%) Blockchain
8 1 (1.00%) DB2
Development Applications
1 10 (10.00%) Git (software)
2 9 (9.00%) Jenkins
3 6 (6.00%) GitLab
4 5 (5.00%) CMake
4 5 (5.00%) JMeter
4 5 (5.00%) Robot Framework
5 2 (2.00%) JIRA
5 2 (2.00%) Maven
6 1 (1.00%) Artifactory
6 1 (1.00%) Atlassian Bamboo
6 1 (1.00%) Bitbucket
6 1 (1.00%) Gradle
General
1 27 (27.00%) Finance
2 9 (9.00%) Analytical Skills
2 9 (9.00%) Banking
2 9 (9.00%) Social Skills
3 6 (6.00%) Legal
4 5 (5.00%) Financial Institution
5 3 (3.00%) Telecoms
6 2 (2.00%) Japanese Language
6 2 (2.00%) Public Sector
7 1 (1.00%) Law
Job Titles
1 20 (20.00%) Infrastructure Engineer
2 14 (14.00%) 3rd Line Engineer
3 12 (12.00%) 3rd Line Infrastructure Engineer
3 12 (12.00%) Developer
4 11 (11.00%) Software Engineer
5 10 (10.00%) Cloud Engineer
5 10 (10.00%) Cloud Infrastructure Engineer
6 9 (9.00%) Architect
7 8 (8.00%) DevOps Engineer
8 7 (7.00%) Infrastructure Team Leader
8 7 (7.00%) Senior Developer
8 7 (7.00%) Team Leader
9 5 (5.00%) Java Developer
9 5 (5.00%) Junior
9 5 (5.00%) Junior Developer
9 5 (5.00%) Senior DevOps
9 5 (5.00%) Senior DevOps Engineer
9 5 (5.00%) Senior Java Developer
9 5 (5.00%) Senior Software Engineer
10 4 (4.00%) Systems Architect
Libraries, Frameworks & Software Standards
1 17 (17.00%) OpenID
1 17 (17.00%) SAML
2 13 (13.00%) HTML
2 13 (13.00%) XML
3 12 (12.00%) Kafka
3 12 (12.00%) LDAP
3 12 (12.00%) Web Services
4 11 (11.00%) OAuth
4 11 (11.00%) OAuth2
5 10 (10.00%) LAMP
5 10 (10.00%) LAPP Stack
6 8 (8.00%) RESTful
7 7 (7.00%) Node.js
8 6 (6.00%) Elastic Stack
8 6 (6.00%) REST
8 6 (6.00%) Spring
8 6 (6.00%) Spring Boot
9 5 (5.00%) Angular 2
9 5 (5.00%) AngularJS
9 5 (5.00%) STL
Miscellaneous
1 16 (16.00%) Clustering
2 15 (15.00%) Enterprise Storage
3 12 (12.00%) Data Centre
4 10 (10.00%) Public Cloud
5 8 (8.00%) Replication
6 6 (6.00%) Private Cloud
7 5 (5.00%) Device Driver
7 5 (5.00%) Linux Command Line
8 4 (4.00%) Blackberry
8 4 (4.00%) Hedge funds
8 4 (4.00%) Virtual Team
9 3 (3.00%) Cloud Native
9 3 (3.00%) Management Information System
10 2 (2.00%) Client/Server
10 2 (2.00%) iPhone
11 1 (1.00%) Distributed Denial-of-Service
11 1 (1.00%) Greenfield Project
11 1 (1.00%) Hybrid Cloud
11 1 (1.00%) Self-Motivation
11 1 (1.00%) SWIFT
Operating Systems
1 64 (64.00%) Linux
2 46 (46.00%) Windows
3 23 (23.00%) Unix
4 19 (19.00%) Windows Server
5 16 (16.00%) Red Hat Enterprise Linux
6 10 (10.00%) CentOS
7 8 (8.00%) Windows Server 2012
8 7 (7.00%) Windows Server 2019
9 5 (5.00%) Windows Server 2008
10 4 (4.00%) Embedded Linux
10 4 (4.00%) Windows Server 2016
11 1 (1.00%) Android
11 1 (1.00%) Apple iOS
11 1 (1.00%) Mac OS
11 1 (1.00%) Windows 10
Processes & Methodologies
1 32 (32.00%) Agile Software Development
2 24 (24.00%) Change Control
3 22 (22.00%) DevOps
4 20 (20.00%) Infrastructure Engineering
5 15 (15.00%) Service Management
5 15 (15.00%) Software Deployment
5 15 (15.00%) Systems Analysis
6 13 (13.00%) Infrastructure as Code
6 13 (13.00%) Mentoring
6 13 (13.00%) Risk Management
7 12 (12.00%) Software Engineering
7 12 (12.00%) Systems Engineering
8 11 (11.00%) Cybersecurity
8 11 (11.00%) Migration
8 11 (11.00%) Observability
8 11 (11.00%) Scaled Agile Framework
9 10 (10.00%) ITIL
9 10 (10.00%) Task Automation
10 9 (9.00%) DevSecOps
10 9 (9.00%) Problem-Solving
Programming Languages
1 23 (23.00%) Python
1 23 (23.00%) SQL
2 22 (22.00%) Java
2 22 (22.00%) PowerShell
3 18 (18.00%) Bash Shell
4 15 (15.00%) C#
5 14 (14.00%) Perl
6 11 (11.00%) C++
6 11 (11.00%) Go
7 9 (9.00%) C
8 5 (5.00%) Kotlin
9 4 (4.00%) VB
10 2 (2.00%) JavaScript
10 2 (2.00%) Ruby
11 1 (1.00%) Java 11
11 1 (1.00%) Java 8
11 1 (1.00%) Rust
11 1 (1.00%) Scala
Qualifications
1 24 (24.00%) Degree
2 10 (10.00%) Security Cleared
3 6 (6.00%) CISSP
3 6 (6.00%) Computer Science Degree
3 6 (6.00%) Microsoft Certification
3 6 (6.00%) SC Cleared
4 5 (5.00%) DV Cleared
4 5 (5.00%) ISTQB
5 4 (4.00%) CCNA
5 4 (4.00%) CISA
5 4 (4.00%) Cisco Certification
6 2 (2.00%) CISM
7 1 (1.00%) AWS Certification
7 1 (1.00%) CRISC
7 1 (1.00%) SANS
7 1 (1.00%) SSCP
Quality Assurance & Compliance
1 6 (6.00%) QA
2 5 (5.00%) SLA
3 4 (4.00%) GDPR
3 4 (4.00%) ISO/IEC 27001
System Software
1 61 (61.00%) Active Directory
2 22 (22.00%) VMware Infrastructure
3 19 (19.00%) Docker
3 19 (19.00%) vSphere
4 4 (4.00%) Hyper-V
4 4 (4.00%) Veritas Cluster Server
5 3 (3.00%) Terminal Services
6 2 (2.00%) Forefront TMG
6 2 (2.00%) VMware Workstation
6 2 (2.00%) XenApp
7 1 (1.00%) NFS
7 1 (1.00%) Virtual Machines
7 1 (1.00%) VMware ESXi
Systems Management
1 21 (21.00%) SCCM
2 18 (18.00%) Kubernetes
3 15 (15.00%) Single Sign-On
4 10 (10.00%) Ansible
5 8 (8.00%) SCOM
6 7 (7.00%) Terraform
7 5 (5.00%) Grafana
7 5 (5.00%) Prometheus
8 4 (4.00%) McAfee ePO
8 4 (4.00%) NetBackup
8 4 (4.00%) OfficeScan
8 4 (4.00%) Trend Micro Deep Security
9 3 (3.00%) Active Directory Federation Services
10 2 (2.00%) Kibana
10 2 (2.00%) WSUS
11 1 (1.00%) FortiGate
11 1 (1.00%) Jamf Pro
11 1 (1.00%) Microsoft Intune
11 1 (1.00%) Nessus
11 1 (1.00%) Puppet
Vendors
1 38 (38.00%) VMware
2 27 (27.00%) Microsoft
3 21 (21.00%) Red Hat
4 15 (15.00%) 3PAR
4 15 (15.00%) Apple
4 15 (15.00%) Scality
5 10 (10.00%) NetIQ
6 8 (8.00%) CyberArk
6 8 (8.00%) F5
6 8 (8.00%) LexisNexis
7 7 (7.00%) Cisco
8 6 (6.00%) McAfee
9 5 (5.00%) Citrix
10 4 (4.00%) Altiris
10 4 (4.00%) CA
10 4 (4.00%) HP
10 4 (4.00%) Huawei
10 4 (4.00%) Oracle
10 4 (4.00%) Veritas
11 3 (3.00%) CheckPoint