Period
to 27 July 2017

The following table provides summary statistics for contract job vacancies advertised in London with a requirement for tcpdump skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited tcpdump over the 6 months to 27 July 2017 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.

tcpdump
England > London
6 months to
27 Jul 2017
Same period 2016 Same period 2015
Rank 596 588 603
Rank change year-on-year -8 +15 -19
Contract jobs citing tcpdump 6 21 9
As % of all contract IT jobs advertised in London 0.014% 0.046% 0.019%
As % of the Communications & Networking category 0.12% 0.34% 0.15%
Number of daily rates quoted 0 14 5
London median daily rate - £393 £450
Median daily rate % change year-on-year - -12.78% +9.76%
England median daily rate £415 £393 £350
% change year-on-year +5.73% +12.14% -9.09%
Number of hourly rates quoted 0 0 0
London median hourly rate - - -
England median hourly rate - - -

tcpdump is in the communications and computer networking skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in London with a requirement for communications and computer networking skills.

Contract Communications & Computer Network Skills
London
Contract job vacancies with a requirement for communications and computer networking skills 4908 6199 6134
As % of all contract IT job vacancies advertised in London 11.67% 13.66% 13.26%
Number of daily rates quoted 3256 4221 3971
London median daily rate £450 £438 £400
Median daily rate % change year-on-year +2.86% +9.38% -
10th Percentile £235 £238 £206
90th Percentile £625 £600 £575
England median daily rate £415 £400 £375
% change year-on-year +3.75% +6.67% -
Number of hourly rates quoted 131 96 197
London median hourly rate £21.16 £21.00 £19.52
Median hourly rate % change year-on-year +0.74% +7.61% +2.71%
10th Percentile £12.75 £10.50 £11.95
90th Percentile £50.00 £48.59 £50.00
England median hourly rate £18.50 £25.00 £20.50
% change year-on-year -26.00% +21.95% +8.09%

tcpdump
Job Vacancy Trend in London

Job postings citing tcpdump as a percentage of all IT jobs advertised in London.

Job vacancy trend for tcpdump in London

tcpdump
Contractor Daily Rate Trend in London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing tcpdump in London.

Contractor daily rate trend for tcpdump in London

tcpdump
Contractor Hourly Rate Trend in London

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing tcpdump in London.

Contractor hourly rate trend for tcpdump in London

For the 6 months to 27 July 2017, IT contractor jobs citing tcpdump 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 London region with a requirement for tcpdump.

1 6 (100.00%) Java
1 6 (100.00%) Perl
1 6 (100.00%) Oracle
1 6 (100.00%) Unix
1 6 (100.00%) Apache
1 6 (100.00%) HTTP
1 6 (100.00%) VPN
1 6 (100.00%) DNS
1 6 (100.00%) Firewall
1 6 (100.00%) Degree
1 6 (100.00%) Amazon AWS
2 4 (66.67%) Bash Shell
2 4 (66.67%) Puppet
2 4 (66.67%) MongoDB
2 4 (66.67%) Apache Cassandra
2 4 (66.67%) NoSQL
2 4 (66.67%) RabbitMQ
2 4 (66.67%) Node.js
2 4 (66.67%) JSON
2 4 (66.67%) Wireshark
2 4 (66.67%) Physics
2 4 (66.67%) Computer Science
2 4 (66.67%) Continuous Integration
2 4 (66.67%) Git (software)
2 4 (66.67%) ZABBIX
2 4 (66.67%) Hadoop
2 4 (66.67%) Amazon EC2
2 4 (66.67%) Microsoft Azure
2 4 (66.67%) Elasticsearch
2 4 (66.67%) Opscode Chef

tcpdump
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 6 (100.00%) Apache
2 4 (66.67%) Elasticsearch
3 2 (33.33%) IIS
3 2 (33.33%) WebLogic
3 2 (33.33%) WebSphere
Cloud Services
1 6 (100.00%) Amazon AWS
2 4 (66.67%) Amazon EC2
2 4 (66.67%) Microsoft Azure
Communications & Networking
1 6 (100.00%) DNS
1 6 (100.00%) Firewall
1 6 (100.00%) HTTP
1 6 (100.00%) VPN
2 4 (66.67%) Wireshark
3 2 (33.33%) ATM
3 2 (33.33%) Diameter Protocol
3 2 (33.33%) Ethereal
3 2 (33.33%) IPsec
3 2 (33.33%) Network Security
3 2 (33.33%) SMTP
3 2 (33.33%) snoop
3 2 (33.33%) SSH
3 2 (33.33%) SSL
3 2 (33.33%) TCP/IP
3 2 (33.33%) VLAN
3 2 (33.33%) WAN
Database & Business Intelligence
1 4 (66.67%) Apache Cassandra
1 4 (66.67%) Hadoop
1 4 (66.67%) MongoDB
1 4 (66.67%) MySQL
1 4 (66.67%) NoSQL
Development Applications
1 4 (66.67%) Ant
1 4 (66.67%) Git (software)
1 4 (66.67%) Maven
1 4 (66.67%) Subversion
Job Titles
1 4 (66.67%) DevOps Engineer
1 4 (66.67%) Java Engineer
2 2 (33.33%) AWS Engineer
2 2 (33.33%) Migration Engineer
2 2 (33.33%) Network Engineer
Libraries, Frameworks & Software Standards
1 4 (66.67%) Ajax
1 4 (66.67%) CSS
1 4 (66.67%) JSON
1 4 (66.67%) Node.js
1 4 (66.67%) RabbitMQ
1 4 (66.67%) XML
2 2 (33.33%) .NET
Miscellaneous
1 4 (66.67%) Computer Science
2 2 (33.33%) Data Centre
Operating Systems
1 6 (100.00%) Unix
Processes & Methodologies
1 4 (66.67%) Auto-Scaling
1 4 (66.67%) Continuous Delivery
1 4 (66.67%) Continuous Integration
1 4 (66.67%) Cryptography
1 4 (66.67%) DevOps
1 4 (66.67%) Microservices
1 4 (66.67%) OOP
1 4 (66.67%) Performance Tuning
1 4 (66.67%) Physics
1 4 (66.67%) The Twelve-Factor App
1 4 (66.67%) Virtual Environments
1 4 (66.67%) Workflow
2 2 (33.33%) Change Control
2 2 (33.33%) ITIL
2 2 (33.33%) Migration
Programming Languages
1 6 (100.00%) Java
1 6 (100.00%) Perl
2 4 (66.67%) Bash Shell
2 4 (66.67%) Python
2 4 (66.67%) Ruby
3 2 (33.33%) C
Qualifications
1 6 (100.00%) Degree
2 4 (66.67%) Master's Degree
3 2 (33.33%) AWS Certification
System Software
1 4 (66.67%) Docker
Systems Management
1 4 (66.67%) Ansible
1 4 (66.67%) Docker Swarm
1 4 (66.67%) Graphite
1 4 (66.67%) Icinga
1 4 (66.67%) Kubernetes
1 4 (66.67%) Mesos
1 4 (66.67%) Nagios
1 4 (66.67%) Opscode Chef
1 4 (66.67%) Puppet
1 4 (66.67%) Salt
1 4 (66.67%) ZABBIX
Vendors
1 6 (100.00%) Oracle
2 4 (66.67%) Dynatrace
2 4 (66.67%) Splunk
3 2 (33.33%) F5