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 29 March 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
29 Mar 2017
Same period 2016 Same period 2015
Rank 568 606 599
Rank change year-on-year +38 -7  
Contract jobs citing tcpdump 9 20 7
As % of all contract IT jobs advertised in England 0.022% 0.040% 0.014%
As % of the Communications & Networking category 0.15% 0.27% 0.096%
Number of daily rates quoted 4 13 6
Median daily rate £473 £538 £475
Median daily rate % change year-on-year -12.09% +13.15%  
90% offered a daily rate of more than £428 £320 £316
10% offered a daily rate of more than £512 £595 £525
UK excluding London median daily rate £420 £506 £475
% change year-on-year -17.03% +6.57%  
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 6060 7327 7289
As % of all contract IT job vacancies advertised in England 14.52% 14.75% 15.02%
Number of daily rates quoted 3746 4449 4027
Median daily rate £400 £385 £370
Median daily rate % change year-on-year +3.96% +4.05%  
90% offered a daily rate of more than £240 £238 £213
10% offered a daily rate of more than £550 £550 £500
UK excluding London median daily rate £375 £363 £347
% change year-on-year +3.44% +4.32%  
Number of hourly rates quoted 326 309 403
Median hourly rate £23.95 £27.50 £26.00
Median hourly rate % change year-on-year -12.90% +5.76%  
90% offered a hourly rate of more than £12.50 £13.00 £13.00
10% offered a hourly rate of more than £50.00 £50.00 £45.00
UK excluding London median hourly rate £22.50 £37.00 £29.50
% change year-on-year -39.18% +25.42%  

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 29 March 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
London +27 4 £481 -12.50% 3
South East +14 3 £500 -11.11%
North West +28 2 £420 -4.00% 2
tcpdump
UK

For the 6 months to 29 March 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 17 (77.27%) Linux
2 14 (63.64%) Bash Shell
3 13 (59.09%) Red Hat Enterprise Linux
3 13 (59.09%) Perl
3 13 (59.09%) Red Hat
4 12 (54.55%) Wireshark
5 10 (45.45%) Analytical Skills
5 10 (45.45%) Windows
6 8 (36.36%) Reuters
6 8 (36.36%) Low Latency
6 8 (36.36%) Multicast
6 8 (36.36%) High Availability
7 7 (31.82%) ITRS Geneos
7 7 (31.82%) DevOps
7 7 (31.82%) Thomson Reuters DACS
7 7 (31.82%) SLA
7 7 (31.82%) Apache
7 7 (31.82%) Python
7 7 (31.82%) Equities
8 6 (27.27%) Ansible
8 6 (27.27%) Docker
8 6 (27.27%) Amazon AWS
9 5 (22.73%) Fixnetix
9 5 (22.73%) IaaS
9 5 (22.73%) Server Building
9 5 (22.73%) SC Cleared
9 5 (22.73%) Security Cleared
9 5 (22.73%) Ruby
9 5 (22.73%) VLAN
9 5 (22.73%) Juniper

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 7 (31.82%) Apache
2 5 (22.73%) WebLogic
3 2 (9.09%) Tomcat
4 1 (4.55%) Elasticsearch
4 1 (4.55%) JBoss
4 1 (4.55%) Jetty
4 1 (4.55%) nginx
Cloud Services
1 6 (27.27%) Amazon AWS
2 5 (22.73%) IaaS
3 1 (4.55%) Datadog
3 1 (4.55%) Google Cloud Platform
3 1 (4.55%) SaaS
Communications & Networking
1 12 (54.55%) Wireshark
2 8 (36.36%) Multicast
3 5 (22.73%) LAN
3 5 (22.73%) VLAN
3 5 (22.73%) WAN
4 4 (18.18%) Firewall
4 4 (18.18%) MPLS
5 3 (13.64%) BGP
5 3 (13.64%) Cisco ASA
5 3 (13.64%) OSPF
5 3 (13.64%) SSL
5 3 (13.64%) VPLS
6 2 (9.09%) Junos
6 2 (9.09%) SSH
6 2 (9.09%) TCP/IP
6 2 (9.09%) VPN
7 1 (4.55%) BIG-IP
7 1 (4.55%) Frame Relay
7 1 (4.55%) Intrusion Detection
7 1 (4.55%) Wireless
Database & Business Intelligence
1 1 (4.55%) Big Data
1 1 (4.55%) Hadoop
1 1 (4.55%) MariaDB
1 1 (4.55%) MySQL
1 1 (4.55%) NoSQL
1 1 (4.55%) Redis
Development Applications
1 1 (4.55%) Git (software)
1 1 (4.55%) Jenkins
General
1 1 (4.55%) Italian Language
1 1 (4.55%) Marketing
Job Titles
1 8 (36.36%) Market Data Engineer
2 7 (31.82%) Data Engineer
3 5 (22.73%) Linux/Unix DevOps
4 4 (18.18%) Administrator
4 4 (18.18%) DevOps Administrator
5 3 (13.64%) Linux Administrator
5 3 (13.64%) Linux DevOps Administrator
5 3 (13.64%) Linux Engineer
5 3 (13.64%) Linux Systems Administrator
5 3 (13.64%) Linux Systems Engineer
5 3 (13.64%) Platform Engineer
5 3 (13.64%) Systems Administrator
5 3 (13.64%) Systems Engineer
5 3 (13.64%) WebLogic Administrator
6 2 (9.09%) DevOps Engineer
6 2 (9.09%) DevOps Systems Engineer
6 2 (9.09%) Linux DevOps Engineer
6 2 (9.09%) Network Engineer
7 1 (4.55%) Cisco Engineer
7 1 (4.55%) Senior Network Engineer
Libraries, Frameworks & Software Standards
1 2 (9.09%) Kafka
2 1 (4.55%) 802.1X
2 1 (4.55%) Apache Avro
2 1 (4.55%) Elastic Stack
2 1 (4.55%) Java EE
2 1 (4.55%) LAMP
2 1 (4.55%) LEMP Stack
2 1 (4.55%) LINQ to SQL
2 1 (4.55%) X-Windows
Miscellaneous
1 10 (45.45%) Analytical Skills
2 7 (31.82%) Equities
3 2 (9.09%) PKI
4 1 (4.55%) Data Centre
4 1 (4.55%) Driving Licence
4 1 (4.55%) Linux Command Line
4 1 (4.55%) Mainframe
4 1 (4.55%) Replication
Operating Systems
1 17 (77.27%) Linux
2 13 (59.09%) Red Hat Enterprise Linux
3 10 (45.45%) Windows
4 4 (18.18%) AIX
5 1 (4.55%) Debian
5 1 (4.55%) Ubuntu
5 1 (4.55%) Unix
Processes & Methodologies
1 8 (36.36%) High Availability
1 8 (36.36%) Low Latency
2 7 (31.82%) DevOps
3 5 (22.73%) Server Building
4 2 (9.09%) Open Source
4 2 (9.09%) Performance Monitoring
5 1 (4.55%) Agile Software Development
5 1 (4.55%) Analytics
5 1 (4.55%) Capacity Planning
5 1 (4.55%) Change Management
5 1 (4.55%) Cryptography
5 1 (4.55%) Data Security
5 1 (4.55%) Full Text Search
5 1 (4.55%) Mentoring
5 1 (4.55%) Network Design
5 1 (4.55%) Performance Tuning
5 1 (4.55%) Problem Management
5 1 (4.55%) Statistics
Programming Languages
1 14 (63.64%) Bash Shell
2 13 (59.09%) Perl
3 7 (31.82%) Python
4 5 (22.73%) Ruby
5 2 (9.09%) Java
6 1 (4.55%) JCL
6 1 (4.55%) Shell Script
6 1 (4.55%) SQL
Qualifications
1 5 (22.73%) SC Cleared
1 5 (22.73%) Security Cleared
2 1 (4.55%) BPSS Clearance
2 1 (4.55%) CCIE
2 1 (4.55%) Cisco Certification
Quality Assurance & Compliance
1 7 (31.82%) SLA
System Software
1 6 (27.27%) Docker
2 1 (4.55%) Apache ZooKeeper
2 1 (4.55%) Gluster
2 1 (4.55%) HDFS
Systems Management
1 7 (31.82%) ITRS Geneos
1 7 (31.82%) Thomson Reuters DACS
2 6 (27.27%) Ansible
3 1 (4.55%) Cisco Prime
3 1 (4.55%) Grafana
3 1 (4.55%) Graphite
3 1 (4.55%) HAProxy
3 1 (4.55%) Kubernetes
3 1 (4.55%) Nagios
3 1 (4.55%) Sysdig
Vendors
1 13 (59.09%) Red Hat
2 8 (36.36%) Reuters
3 5 (22.73%) Cisco
3 5 (22.73%) Fixnetix
3 5 (22.73%) Juniper
4 1 (4.55%) Apple
4 1 (4.55%) Blue Coat
4 1 (4.55%) CheckPoint
4 1 (4.55%) F5
4 1 (4.55%) Google
4 1 (4.55%) IBM
4 1 (4.55%) Intel Security
4 1 (4.55%) Percona