The table below looks at the prevalence of the term PKI in contract job vacancies advertised in the City of London. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited PKI over the 3 months to 28 March 2017 with a comparison to the same period over 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.

Public-Key Infrastructure (PKI)
London / City of London
3 months to
28 Mar 2017
Same period 2016 Same period 2015
Rank 157 151 175
Rank change year-on-year -6 +24  
Contract jobs citing PKI 5 3 18
As % of all contract IT jobs advertised in the City of London 0.16% 0.089% 0.35%
As % of the Miscellaneous category 0.45% 0.25% 0.96%
Number of daily rates quoted 1 2 16
Median daily rate £475 £513 £448
Median daily rate % change year-on-year -7.31% +14.52%  
UK excluding London median daily rate £410 £450 £425
% change year-on-year -8.88% +5.88%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £45.00 £34.50 £26.00
% change year-on-year +30.43% +32.69%  

PKI is in the generic IT skills category. The next 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 generic IT skills.

Generic IT Skills
City of London
Contract job vacancies with a requirement for generic IT skills 1120 1208 1884
As % of all contract IT job vacancies advertised in the City of London 36.58% 36.02% 36.43%
Number of daily rates quoted 861 961 1436
Median daily rate £525 £500 £470
Median daily rate % change year-on-year +5.00% +6.38%  
90% offered a daily rate of more than £302 £319 £290
10% offered a daily rate of more than £650 £675 £625
UK excluding London median daily rate £400 £375 £375
% change year-on-year +6.66% -  
Number of hourly rates quoted 8 27 36
Median hourly rate £19.00 £19.00 £17.87
Median hourly rate % change year-on-year - +6.35%  
90% offered a hourly rate of more than £13.79 £12.00 £12.73
10% offered a hourly rate of more than £28.35 £35.60 £27.37
UK excluding London median hourly rate £18.68 £27.22 £18.83
% change year-on-year -31.36% +44.56%  

PKI
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing PKI as a proportion of all contract or permanent IT jobs with a match in the Miscellaneous category.

Job vacancy trend for PKI in the City of London

PKI
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 PKI in the City of London.

Contractor daily rate trend for PKI in the City of London

PKI
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 PKI in the City of London.

Contractor hourly rate trend for PKI in the City of London

For the 6 months to 28 March 2017, IT contractor jobs citing PKI also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the City of London region with a requirement for PKI.

1 10 (90.91%) Microsoft
2 7 (63.64%) Windows
3 6 (54.55%) Active Directory
4 5 (45.45%) Oracle
4 5 (45.45%) Microsoft Azure
5 4 (36.36%) Amazon AWS
5 4 (36.36%) Degree
5 4 (36.36%) VMware Infrastructure
5 4 (36.36%) Amazon EC2
5 4 (36.36%) Security Monitoring
5 4 (36.36%) IIS
5 4 (36.36%) Linux
5 4 (36.36%) Citrix
5 4 (36.36%) Firewall
5 4 (36.36%) Finance
5 4 (36.36%) VMware
5 4 (36.36%) Agile Software Development
6 3 (27.27%) Atlassian
6 3 (27.27%) Atlassian Bamboo
6 3 (27.27%) Continuous Integration
6 3 (27.27%) SQL Server
6 3 (27.27%) Creative Problem-Solving
6 3 (27.27%) Octopus Deploy
6 3 (27.27%) DevOps
6 3 (27.27%) Jenkins
6 3 (27.27%) Amazon RDS
6 3 (27.27%) Performance Monitoring
6 3 (27.27%) New Relic
6 3 (27.27%) AWS Certification
6 3 (27.27%) AWS CloudFormation

PKI
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 4 (36.36%) IIS
2 3 (27.27%) Confluence
3 1 (9.09%) MS Exchange
3 1 (9.09%) Office Communications Server
3 1 (9.09%) SharePoint
3 1 (9.09%) Skype for Business
3 1 (9.09%) WebSphere
Applications
1 2 (18.18%) MS Excel
Cloud Services
1 5 (45.45%) Microsoft Azure
2 4 (36.36%) Amazon AWS
2 4 (36.36%) Amazon EC2
3 3 (27.27%) Amazon CloudWatch
3 3 (27.27%) Amazon S3
3 3 (27.27%) AWS CloudFormation
3 3 (27.27%) Office 365
4 1 (9.09%) IaaS
4 1 (9.09%) Mimecast
Communications & Networking
1 4 (36.36%) Firewall
2 2 (18.18%) DHCP
2 2 (18.18%) DNS
2 2 (18.18%) Internet
3 1 (9.09%) 802.11
3 1 (9.09%) Ethernet
3 1 (9.09%) IPsec
3 1 (9.09%) IPv6
3 1 (9.09%) LAN
3 1 (9.09%) LDAP
3 1 (9.09%) MPLS
3 1 (9.09%) NetScaler
3 1 (9.09%) Network Security
3 1 (9.09%) Reverse Proxy
3 1 (9.09%) SAN
3 1 (9.09%) SSH
3 1 (9.09%) TCP/IP
3 1 (9.09%) Unified Communications
3 1 (9.09%) VPN
3 1 (9.09%) WAN
Database & Business Intelligence
1 3 (27.27%) Amazon RDS
1 3 (27.27%) SQL Server
2 1 (9.09%) DB2
2 1 (9.09%) MySQL
Development Applications
1 3 (27.27%) Atlassian Bamboo
1 3 (27.27%) Git (software)
1 3 (27.27%) Jenkins
1 3 (27.27%) JIRA
1 3 (27.27%) Octopus Deploy
1 3 (27.27%) TeamCity
General
1 4 (36.36%) Finance
Job Titles
1 3 (27.27%) DevOps Engineer
2 2 (18.18%) Architect
2 2 (18.18%) Cloud Engineer
2 2 (18.18%) Infrastructure Engineer
3 1 (9.09%) Active Directory Engineer
3 1 (9.09%) Active Directory Specialist
3 1 (9.09%) Analyst
3 1 (9.09%) Cloud Architect
3 1 (9.09%) Cloud Infrastructure Architect
3 1 (9.09%) Cybersecurity Analyst
3 1 (9.09%) Infrastructure Architect
3 1 (9.09%) Integration Specialist
3 1 (9.09%) Lync Specialist
3 1 (9.09%) Security Analyst
3 1 (9.09%) Systems Engineer
3 1 (9.09%) Technical Architect
3 1 (9.09%) Windows Engineer
3 1 (9.09%) Windows Specialist
3 1 (9.09%) Windows Systems Engineer
Libraries, Frameworks & Software Standards
1 1 (9.09%) 802.1X
1 1 (9.09%) OpenID
1 1 (9.09%) REST
1 1 (9.09%) SAML
1 1 (9.09%) SOAP
1 1 (9.09%) Web Services
Miscellaneous
1 3 (27.27%) Computer Science
2 1 (9.09%) CESG
2 1 (9.09%) Cyberthreat
2 1 (9.09%) Distributed Denial-of-Service
2 1 (9.09%) Handset
2 1 (9.09%) Hedge funds
2 1 (9.09%) Private Cloud
2 1 (9.09%) Replication
Operating Systems
1 7 (63.64%) Windows
2 4 (36.36%) Linux
3 1 (9.09%) Apple iOS
3 1 (9.09%) Unix
3 1 (9.09%) Windows 10
3 1 (9.09%) Windows Server
3 1 (9.09%) Windows Server 2008
3 1 (9.09%) Windows Server 2012
Processes & Methodologies
1 4 (36.36%) Agile Software Development
1 4 (36.36%) Security Monitoring
2 3 (27.27%) Continuous Integration
2 3 (27.27%) Creative Problem-Solving
2 3 (27.27%) DevOps
2 3 (27.27%) Performance Monitoring
3 2 (18.18%) Continuous Improvement
3 2 (18.18%) Cybersecurity
3 2 (18.18%) ITIL
4 1 (9.09%) Asset Management
4 1 (9.09%) Capacity Management
4 1 (9.09%) Database Security
4 1 (9.09%) Disaster Recovery
4 1 (9.09%) ERP
4 1 (9.09%) Identity Management
4 1 (9.09%) Kalman Filter
4 1 (9.09%) Migration
4 1 (9.09%) Mobile Device Management
4 1 (9.09%) PRINCE2
4 1 (9.09%) TOGAF
Programming Languages
1 3 (27.27%) PowerShell
2 2 (18.18%) SQL
Qualifications
1 4 (36.36%) Degree
2 3 (27.27%) AWS Certification
3 1 (9.09%) CISSP
3 1 (9.09%) ITIL Certification
3 1 (9.09%) MCSE
3 1 (9.09%) Microsoft Certification
3 1 (9.09%) SC Cleared
3 1 (9.09%) Security Cleared
3 1 (9.09%) VCP6
3 1 (9.09%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 3 (27.27%) QA
2 1 (9.09%) COBIT
2 1 (9.09%) Disclosure Scotland
2 1 (9.09%) ISO/IEC 27001
2 1 (9.09%) PCI DSS
2 1 (9.09%) Sarbanes-Oxley
System Software
1 6 (54.55%) Active Directory
2 4 (36.36%) VMware Infrastructure
3 2 (18.18%) XenApp
4 1 (9.09%) BitLocker
4 1 (9.09%) DFS Replication
4 1 (9.09%) Hyper-V
4 1 (9.09%) vSphere
4 1 (9.09%) XenDesktop
Systems Management
1 2 (18.18%) SCCM
1 2 (18.18%) SCOM
2 1 (9.09%) Microsoft Intune
2 1 (9.09%) Tivoli Identity Manager
Vendors
1 10 (90.91%) Microsoft
2 5 (45.45%) Oracle
3 4 (36.36%) Citrix
3 4 (36.36%) VMware
4 3 (27.27%) Atlassian
4 3 (27.27%) New Relic
5 2 (18.18%) 3PAR
5 2 (18.18%) HP
5 2 (18.18%) IBM
6 1 (9.09%) Symantec
6 1 (9.09%) WorldPay