The following table provides summary statistics for contract job vacancies advertised in England with a requirement for tcpdump skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited tcpdump over the 3 months to 26 June 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
UK / England
3 months to
26 Jun 2017
Same period 2016 Same period 2015
Rank 578 582 623
Rank change year-on-year +4 +41  
Contract jobs citing tcpdump 11 41 13
As % of all contract IT jobs advertised in England 0.025% 0.084% 0.026%
As % of the Communications & Networking category 0.19% 0.53% 0.17%
Number of daily rates quoted 2 25 8
Median daily rate £405 £393 £318
Median daily rate % change year-on-year +3.18% +23.62%  
90% offered a daily rate of more than £401 £341 £224
10% offered a daily rate of more than £409 £422 £363
UK excluding London median daily rate £410 £375 £310
% change year-on-year +9.33% +20.96%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London 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 England with a requirement for communications and computer networking skills.

Contract Communications & Computer Network Skills
England
Contract job vacancies with a requirement for communications and computer networking skills 5923 7740 7498
As % of all contract IT job vacancies advertised in England 13.72% 15.88% 14.73%
Number of daily rates quoted 3516 4793 4296
Median daily rate £400 £400 £360
Median daily rate % change year-on-year - +11.11%  
90% offered a daily rate of more than £220 £240 £220
10% offered a daily rate of more than £550 £550 £500
UK excluding London median daily rate £375 £365 £340
% change year-on-year +2.73% +7.35%  
Number of hourly rates quoted 354 352 438
Median hourly rate £24.86 £28.00 £22.83
Median hourly rate % change year-on-year -11.21% +22.64%  
90% offered a hourly rate of more than £12.00 £12.50 £13.00
10% offered a hourly rate of more than £50.00 £47.83 £45.00
UK excluding London median hourly rate £29.00 £31.50 £25.00
% change year-on-year -7.93% +26.00%  

tcpdump
Job Vacancy Trend in England

The job posting trend of jobs advertised in England citing tcpdump as a proportion of all contract or permanent IT jobs with a match in the Communications & Networking category.

Job vacancy trend for tcpdump in England

tcpdump
Contractor Daily Rate Trend in England

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

Contractor daily rate trend for tcpdump in England

tcpdump
Contractor Hourly Rate Trend in England

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

Contractor hourly rate trend for tcpdump in England

tcpdump
Contract Job Locations in England

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing tcpdump within the England region over the 3 months to 26 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
North West +24 6 £405 -
London -13 5 - - 1
tcpdump
UK

For the 6 months to 26 June 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 England region with a requirement for tcpdump.

1 11 (57.89%) Linux
2 10 (52.63%) Wireshark
3 9 (47.37%) Unix
3 9 (47.37%) Perl
3 9 (47.37%) HTTP
4 8 (42.11%) Java
4 8 (42.11%) Firewall
4 8 (42.11%) Bash Shell
5 7 (36.84%) Hadoop
5 7 (36.84%) NoSQL
5 7 (36.84%) DevOps
5 7 (36.84%) Analytical Skills
5 7 (36.84%) Graphite
5 7 (36.84%) Windows
5 7 (36.84%) AIX
5 7 (36.84%) Python
6 6 (31.58%) VPN
7 5 (26.32%) DNS
7 5 (26.32%) SSL
7 5 (26.32%) Cryptography
7 5 (26.32%) SSH
7 5 (26.32%) Apache
7 5 (26.32%) Oracle
7 5 (26.32%) Degree
7 5 (26.32%) Amazon AWS
8 4 (21.05%) SC Cleared
8 4 (21.05%) Security Cleared
8 4 (21.05%) Red Hat Enterprise Linux
8 4 (21.05%) Git (software)
8 4 (21.05%) ZABBIX

tcpdump
Co-occurring IT Skills in England 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 5 (26.32%) Apache
2 4 (21.05%) Elasticsearch
3 1 (5.26%) IIS
3 1 (5.26%) WebLogic
3 1 (5.26%) WebSphere
Cloud Services
1 5 (26.32%) Amazon AWS
2 4 (21.05%) Amazon EC2
2 4 (21.05%) Microsoft Azure
Communications & Networking
1 10 (52.63%) Wireshark
2 9 (47.37%) HTTP
3 8 (42.11%) Firewall
4 6 (31.58%) VPN
5 5 (26.32%) DNS
5 5 (26.32%) SSH
5 5 (26.32%) SSL
6 4 (21.05%) FTP
6 4 (21.05%) Multicast
6 4 (21.05%) PuTTY
6 4 (21.05%) VLAN
6 4 (21.05%) WAN
7 3 (15.79%) BGP
7 3 (15.79%) Cisco ASA
7 3 (15.79%) LAN
7 3 (15.79%) MPLS
7 3 (15.79%) OSPF
7 3 (15.79%) VPLS
8 2 (10.53%) Junos
9 1 (5.26%) snoop
Database & Business Intelligence
1 7 (36.84%) Hadoop
1 7 (36.84%) NoSQL
2 4 (21.05%) Apache Cassandra
2 4 (21.05%) MongoDB
2 4 (21.05%) MySQL
3 3 (15.79%) Big Data
Development Applications
1 4 (21.05%) Ant
1 4 (21.05%) Git (software)
1 4 (21.05%) Maven
1 4 (21.05%) Subversion
Job Titles
1 4 (21.05%) Data Engineer
1 4 (21.05%) DevOps Engineer
1 4 (21.05%) Java Engineer
1 4 (21.05%) Market Data Engineer
2 3 (15.79%) Big Data Developer
2 3 (15.79%) Developer
2 3 (15.79%) Software Developer
3 2 (10.53%) Network Engineer
4 1 (5.26%) Architect
4 1 (5.26%) AWS Engineer
4 1 (5.26%) Hadoop Developer
4 1 (5.26%) Java Developer
4 1 (5.26%) Java Hadoop Developer
4 1 (5.26%) Java Software Developer
4 1 (5.26%) Linux Developer
4 1 (5.26%) Migration Engineer
4 1 (5.26%) Network Architect
4 1 (5.26%) Platform Engineer
4 1 (5.26%) Senior Network Engineer
4 1 (5.26%) SQL Developer
Libraries, Frameworks & Software Standards
1 4 (21.05%) Ajax
1 4 (21.05%) CSS
1 4 (21.05%) JSON
1 4 (21.05%) Node.js
1 4 (21.05%) RabbitMQ
1 4 (21.05%) XML
1 4 (21.05%) X-Windows
2 3 (15.79%) Apache Avro
2 3 (15.79%) Elastic Stack
2 3 (15.79%) Kafka
3 1 (5.26%) .NET
Miscellaneous
1 7 (36.84%) Analytical Skills
2 4 (21.05%) Computer Science
2 4 (21.05%) Linux Command Line
2 4 (21.05%) Mainframe
2 4 (21.05%) PKI
3 3 (15.79%) Equities
4 2 (10.53%) Data Centre
5 1 (5.26%) Driving Licence
Operating Systems
1 11 (57.89%) Linux
2 9 (47.37%) Unix
3 7 (36.84%) AIX
3 7 (36.84%) Windows
4 4 (21.05%) Red Hat Enterprise Linux
Processes & Methodologies
1 7 (36.84%) DevOps
2 5 (26.32%) Cryptography
3 4 (21.05%) Auto-Scaling
3 4 (21.05%) Continuous Delivery
3 4 (21.05%) Continuous Integration
3 4 (21.05%) High Availability
3 4 (21.05%) Low Latency
3 4 (21.05%) Microservices
3 4 (21.05%) OOP
3 4 (21.05%) Performance Tuning
3 4 (21.05%) Physics
3 4 (21.05%) Statistics
3 4 (21.05%) The Twelve-Factor App
3 4 (21.05%) Virtual Environments
3 4 (21.05%) Workflow
4 3 (15.79%) Agile Software Development
4 3 (15.79%) Analytics
4 3 (15.79%) Data Security
4 3 (15.79%) Open Source
5 1 (5.26%) Network Design
Programming Languages
1 9 (47.37%) Perl
2 8 (42.11%) Bash Shell
2 8 (42.11%) Java
3 7 (36.84%) Python
4 4 (21.05%) JCL
4 4 (21.05%) Ruby
4 4 (21.05%) Shell Script
5 3 (15.79%) SQL
6 1 (5.26%) C
Qualifications
1 5 (26.32%) Degree
2 4 (21.05%) Master's Degree
2 4 (21.05%) SC Cleared
2 4 (21.05%) Security Cleared
3 1 (5.26%) AWS Certification
3 1 (5.26%) BPSS Clearance
Quality Assurance & Compliance
1 3 (15.79%) SLA
System Software
1 4 (21.05%) Docker
2 3 (15.79%) HDFS
Systems Management
1 7 (36.84%) Graphite
2 4 (21.05%) Ansible
2 4 (21.05%) Docker Swarm
2 4 (21.05%) Icinga
2 4 (21.05%) Kubernetes
2 4 (21.05%) Mesos
2 4 (21.05%) Nagios
2 4 (21.05%) Opscode Chef
2 4 (21.05%) Puppet
2 4 (21.05%) Salt
2 4 (21.05%) ZABBIX
3 3 (15.79%) Grafana
3 3 (15.79%) ITRS Geneos
3 3 (15.79%) Thomson Reuters DACS
Vendors
1 5 (26.32%) Oracle
2 4 (21.05%) Dynatrace
2 4 (21.05%) IBM
2 4 (21.05%) Red Hat
2 4 (21.05%) Reuters
2 4 (21.05%) Splunk
3 3 (15.79%) Cisco
3 3 (15.79%) Fixnetix
3 3 (15.79%) Juniper
4 1 (5.26%) F5
4 1 (5.26%) McAfee