The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for Nmap skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Nmap over the 3 months to 24 June 2017 with a comparison to the same period in the previous 2 years.

Network Mapper (Nmap)
London / City of London
3 months to
24 Jun 2017
Same period 2016 Same period 2015
Rank 234 - -
Rank change year-on-year - 0  
Permanent jobs citing Nmap 2 0 0
As % of all permanent IT jobs advertised in the City of London 0.039% - -
As % of the Systems Management category 0.37% - -
Number of salaries quoted 2 0 0
Median salary £70,000 - -
UK excluding London median salary £58,000 £55,000 £40,000
% change year-on-year +5.45% +37.50%  

Nmap is in the systems management skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in the City of London with a requirement for systems management skills.

Systems Management Skills
City of London
Permanent job vacancies with a requirement for systems management skills 536 725 804
As % of all permanent IT job vacancies advertised in the City of London 10.41% 11.42% 7.74%
Number of salaries quoted 479 652 724
Median salary £60,000 £60,000 £57,500
Median salary % change year-on-year - +4.34%  
90% offered a salary of more than £38,275 £40,000 £42,500
10% offered a salary of more than £82,500 £75,000 £75,000
UK excluding London median salary £46,000 £45,000 £44,750
% change year-on-year +2.22% +0.55%  

Nmap
Job Vacancy Trend in the City of London

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

Job vacancy trend for Nmap in the City of London

Nmap
Salary Trend in the City of London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Nmap in the City of London.

Salary trend for Nmap in the City of London

For the 6 months to 24 June 2017, IT jobs citing Nmap also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the City of London region with a requirement for Nmap.

1 4 (100.00%) LAN
1 4 (100.00%) WAN
1 4 (100.00%) TCP/IP
1 4 (100.00%) Nessus
1 4 (100.00%) SIEM
1 4 (100.00%) Firewall
2 2 (50.00%) Finance
2 2 (50.00%) Legal
2 2 (50.00%) VMware
2 2 (50.00%) Information Security
2 2 (50.00%) Root Cause Analysis
2 2 (50.00%) Relational Database
2 2 (50.00%) LogRhythm
2 2 (50.00%) Kalman Filter
2 2 (50.00%) Mimecast
2 2 (50.00%) Malware Analysis
2 2 (50.00%) Vulnerability Scanning
2 2 (50.00%) Windows Server
2 2 (50.00%) Security Operations
2 2 (50.00%) Network Intrusion Detection System
2 2 (50.00%) Computer Emergency Response Teams
2 2 (50.00%) Security Monitoring
2 2 (50.00%) SSH
2 2 (50.00%) Tripwire
2 2 (50.00%) Degree
2 2 (50.00%) Wireshark
2 2 (50.00%) Computer Science
2 2 (50.00%) Problem Management
2 2 (50.00%) Qualys
2 2 (50.00%) Data Protection

Nmap
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:

Cloud Services
1 2 (50.00%) Mimecast
Communications & Networking
1 4 (100.00%) Firewall
1 4 (100.00%) LAN
1 4 (100.00%) TCP/IP
1 4 (100.00%) WAN
2 2 (50.00%) FTP
2 2 (50.00%) HTTP
2 2 (50.00%) Internet
2 2 (50.00%) LDAP
2 2 (50.00%) SMTP
2 2 (50.00%) SSH
2 2 (50.00%) VPN
2 2 (50.00%) Wireshark
Database & Business Intelligence
1 2 (50.00%) Relational Database
General
1 2 (50.00%) Finance
1 2 (50.00%) Legal
Job Titles
1 2 (50.00%) IT Security Specialist
1 2 (50.00%) Operations Team Leader
1 2 (50.00%) Security Specialist
1 2 (50.00%) Team Leader
Miscellaneous
1 2 (50.00%) Client/Server
1 2 (50.00%) Computer Science
Operating Systems
1 2 (50.00%) Linux
1 2 (50.00%) Windows
1 2 (50.00%) Windows Server
Processes & Methodologies
1 4 (100.00%) SIEM
2 2 (50.00%) Business Intelligence
2 2 (50.00%) Data Protection
2 2 (50.00%) Information Security
2 2 (50.00%) Kalman Filter
2 2 (50.00%) Malware Analysis
2 2 (50.00%) Problem Management
2 2 (50.00%) Root Cause Analysis
2 2 (50.00%) Security Monitoring
2 2 (50.00%) Security Operations
2 2 (50.00%) Vulnerability Scanning
Qualifications
1 2 (50.00%) CISM
1 2 (50.00%) CISSP
1 2 (50.00%) Degree
Quality Assurance & Compliance
1 2 (50.00%) PCI DSS
System Software
1 2 (50.00%) Active Directory
1 2 (50.00%) VMware Infrastructure
1 2 (50.00%) vSphere
1 2 (50.00%) XenApp
Systems Management
1 4 (100.00%) Nessus
2 2 (50.00%) Computer Emergency Response Teams
2 2 (50.00%) Network Intrusion Detection System
Vendors
1 2 (50.00%) CheckPoint
1 2 (50.00%) Cisco
1 2 (50.00%) Citrix
1 2 (50.00%) Forcepoint
1 2 (50.00%) HP
1 2 (50.00%) LogRhythm
1 2 (50.00%) Microsoft
1 2 (50.00%) Qualys
1 2 (50.00%) Splunk
1 2 (50.00%) Tripwire
1 2 (50.00%) VMware