Period
to 22 November 2017

The following table provides summary statistics for contract job vacancies advertised in London with a requirement for Kalman Filter skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Kalman Filter over the 6 months to 22 November 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.

Kalman Filtering
England > London
6 months to
22 Nov 2017
Same period 2016 Same period 2015
Rank 483 475 474
Rank change year-on-year -8 -1 -11
Contract jobs citing Kalman Filter 157 134 140
As % of all contract IT jobs advertised in London 0.33% 0.30% 0.30%
As % of the Processes & Methodologies category 0.38% 0.34% 0.36%
Number of daily rates quoted 112 74 95
London median daily rate £400 £450 £435
Median daily rate % change year-on-year -11.11% +3.45% +8.75%
10th Percentile £213 £265 £300
90th Percentile £600 £571 £650
England median daily rate £425 £400 £400
% change year-on-year +6.25% - +8.11%
Number of hourly rates quoted 2 0 2
London median hourly rate £45.00 - £12.50
10th Percentile £42.50 - £10.45
90th Percentile £47.50 - £14.95
England median hourly rate £29.10 £20.00 £21.53
% change year-on-year +45.48% -7.08% +59.44%

Kalman Filter is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in London with a requirement for process or methodology skills.

All Process and Methodology Skills
London
Contract vacancies with a requirement for process or methodology skills 40998 38993 38736
As % of all contract IT jobs advertised in London 86.99% 86.21% 83.83%
Number of daily rates quoted 29810 27960 27683
London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +2.86%
10th Percentile £313 £305 £288
90th Percentile £675 £644 £638
England median daily rate £450 £425 £423
% change year-on-year +5.88% +0.47% +5.75%
Number of hourly rates quoted 385 406 463
London median hourly rate £22.50 £21.89 £20.00
Median hourly rate % change year-on-year +2.79% +9.45% +11.11%
10th Percentile £13.33 £12.25 £11.25
90th Percentile £52.80 £50.07 £50.00
England median hourly rate £24.00 £24.43 £22.50
% change year-on-year -1.76% +8.58% +18.42%

Kalman Filter
Job Vacancy Trend in London

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

Job vacancy trend for Kalman Filter in London

Kalman Filter
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for Kalman Filter in London

Kalman Filter
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing Kalman Filter in London over the 6 months to 22 November 2017.

Contractor daily rate histogram for Kalman Filter in London

Kalman Filter
Contractor Hourly Rate Trend in London

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

Contractor hourly rate trend for Kalman Filter in London

Kalman Filter
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Kalman Filter within the London region over the 6 months to 22 November 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London +15 37 £350 -22.22% 5
East London -6 5 £513 +36.67%
South London -45 5 £294 -36.14% 2
North London -7 4 £328 +14.91%
West London -2 3 £300 -30.64% 4
Kalman Filter
England

For the 6 months to 22 November 2017, IT contractor jobs citing Kalman Filter 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 Kalman Filter.

1 64 (40.76%) Firewall
2 50 (31.85%) Windows
3 44 (28.03%) Active Directory
4 38 (24.20%) Cisco
4 38 (24.20%) Finance
5 32 (20.38%) SQL
6 31 (19.75%) VPN
6 31 (19.75%) VMware
6 31 (19.75%) Web Filtering
7 29 (18.47%) VMware Infrastructure
8 28 (17.83%) Intrusion Detection
9 25 (15.92%) TCP/IP
9 25 (15.92%) Microsoft
10 24 (15.29%) Management Information System
11 22 (14.01%) DNS
11 22 (14.01%) Python
11 22 (14.01%) WAN
12 21 (13.38%) Linux
12 21 (13.38%) Information Security
13 20 (12.74%) Change Management
13 20 (12.74%) ITIL
13 20 (12.74%) Patch Management
14 19 (12.10%) Email Filtering
15 18 (11.46%) Unix
15 18 (11.46%) LAN
15 18 (11.46%) DHCP
16 17 (10.83%) SAN
16 17 (10.83%) Office 365
17 16 (10.19%) Analytics
17 16 (10.19%) Amazon AWS

Kalman Filter
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 12 (7.64%) MS Exchange
2 8 (5.10%) Elasticsearch
2 8 (5.10%) Exchange Server 2013
3 6 (3.82%) Exchange Server 2010
3 6 (3.82%) SharePoint
4 5 (3.18%) Tomcat
4 5 (3.18%) WordPress
5 4 (2.55%) Apache
6 3 (1.91%) CMS
6 3 (1.91%) MQSeries
6 3 (1.91%) WebLogic
7 2 (1.27%) Apache Spark
7 2 (1.27%) Exchange Server 2007
7 2 (1.27%) Skype for Business
8 1 (0.64%) Confluence
8 1 (0.64%) Jupyter
8 1 (0.64%) SAS
8 1 (0.64%) SharePoint 2010
8 1 (0.64%) SharePoint 2013
8 1 (0.64%) WildFly
Applications
1 8 (5.10%) Microsoft Excel
2 7 (4.46%) Microsoft Office
2 7 (4.46%) MS Visio
3 5 (3.18%) Adobe Creative Suite
3 5 (3.18%) Microsoft PowerPoint
3 5 (3.18%) Photoshop
4 2 (1.27%) Microsoft Project
5 1 (0.64%) Spreadsheet
Business Applications
1 1 (0.64%) Eagle PACE
1 1 (0.64%) Markit EDM
1 1 (0.64%) Remedy ITSM
1 1 (0.64%) Salesforce.com CRM
Cloud Services
1 17 (10.83%) Office 365
2 16 (10.19%) Amazon AWS
3 6 (3.82%) Microsoft Azure
4 5 (3.18%) Google Cloud Platform
5 4 (2.55%) Serverless
6 3 (1.91%) Azure Active Directory
6 3 (1.91%) G Suite
6 3 (1.91%) Mimecast
6 3 (1.91%) SaaS
7 2 (1.27%) IaaS
8 1 (0.64%) Amazon CloudWatch
8 1 (0.64%) Amazon EC2
8 1 (0.64%) Amazon ELB
8 1 (0.64%) Amazon S3
8 1 (0.64%) Datadog
8 1 (0.64%) OneDrive
8 1 (0.64%) PaaS
8 1 (0.64%) Slack
8 1 (0.64%) Virtual Private Cloud
8 1 (0.64%) Yammer
Communications & Networking
1 64 (40.76%) Firewall
2 31 (19.75%) VPN
3 28 (17.83%) Intrusion Detection
4 25 (15.92%) TCP/IP
5 22 (14.01%) DNS
5 22 (14.01%) WAN
6 18 (11.46%) DHCP
6 18 (11.46%) LAN
7 17 (10.83%) SAN
8 14 (8.92%) Network Security
9 13 (8.28%) Cisco ASA
10 12 (7.64%) IPsec
10 12 (7.64%) LDAP
11 11 (7.01%) Internet
11 11 (7.01%) VLAN
12 9 (5.73%) NAS
12 9 (5.73%) SSL
13 8 (5.10%) BGP
13 8 (5.10%) NetScaler
14 7 (4.46%) tcpdump
Database & Business Intelligence
1 13 (8.28%) SQL Server
2 8 (5.10%) Relational Database
3 7 (4.46%) Hadoop
3 7 (4.46%) MySQL
4 6 (3.82%) Data Mining
5 4 (2.55%) BigQuery
5 4 (2.55%) Neo4j
5 4 (2.55%) NoSQL
6 3 (1.91%) Big Data
6 3 (1.91%) Data Warehouse
7 2 (1.27%) InfluxDB
7 2 (1.27%) PostgreSQL
7 2 (1.27%) RDBMS
7 2 (1.27%) SQL Server 2008
7 2 (1.27%) SQL Server 2012
8 1 (0.64%) MS Access
8 1 (0.64%) Oracle Database
8 1 (0.64%) Oracle Database 11g
8 1 (0.64%) Power BI
Development Applications
1 8 (5.10%) Bitbucket
1 8 (5.10%) Git (software)
1 8 (5.10%) Visual Studio
2 6 (3.82%) JIRA
3 4 (2.55%) Jenkins
4 2 (1.27%) Ant
4 2 (1.27%) Babel
4 2 (1.27%) Grunt
4 2 (1.27%) Sonatype Nexus
5 1 (0.64%) CruiseControl
5 1 (0.64%) FxCop
5 1 (0.64%) SonarQube
5 1 (0.64%) Subversion
5 1 (0.64%) TeamCity
General
1 38 (24.20%) Finance
2 16 (10.19%) Banking
3 13 (8.28%) Telecoms
4 7 (4.46%) Marketing
4 7 (4.46%) Retail
5 5 (3.18%) Electronics
6 3 (1.91%) Back Office
6 3 (1.91%) Investment Banking
6 3 (1.91%) Manufacturing
7 2 (1.27%) Corporate Banking
7 2 (1.27%) Financial Institution
8 1 (0.64%) Billing
8 1 (0.64%) French Language
8 1 (0.64%) Games
8 1 (0.64%) Legal
8 1 (0.64%) Pharmaceutical
Job Titles
1 32 (20.38%) Analyst
2 20 (12.74%) Security Engineer
3 18 (11.46%) Developer
4 17 (10.83%) Infrastructure Engineer
5 13 (8.28%) Consultant
6 12 (7.64%) Security Manager
7 11 (7.01%) Support Analyst
8 9 (5.73%) Infrastructure Security Engineer
8 9 (5.73%) Network Engineer
8 9 (5.73%) Security Analyst
9 8 (5.10%) 3rd Line Support
9 8 (5.10%) Architect
9 8 (5.10%) Security Consultant
10 7 (4.46%) Business Analyst
10 7 (4.46%) Data Scientist
10 7 (4.46%) Network Security Engineer
11 6 (3.82%) 3rd Line Engineer
11 6 (3.82%) Systems Engineer
12 5 (3.18%) Applications Support
12 5 (3.18%) Applications Support Analyst
Libraries, Frameworks & Software Standards
1 7 (4.46%) Sass
2 6 (3.82%) CSS
2 6 (3.82%) HTML
2 6 (3.82%) jQuery
2 6 (3.82%) JSP
3 5 (3.18%) CSS3
3 5 (3.18%) FIX Protocol
3 5 (3.18%) HTML5
3 5 (3.18%) LAMP
3 5 (3.18%) Node.js
3 5 (3.18%) Regular Expression
3 5 (3.18%) Twitter Bootstrap
4 4 (2.55%) .NET
4 4 (2.55%) 802.1X
4 4 (2.55%) J2EE
4 4 (2.55%) REST
5 3 (1.91%) NumPy
5 3 (1.91%) SciPy
5 3 (1.91%) WCF
5 3 (1.91%) Web Services
Miscellaneous
1 24 (15.29%) Management Information System
2 13 (8.28%) Analytical Skills
3 11 (7.01%) Computer Science
4 8 (5.10%) SWIFT
5 7 (4.46%) Data Centre
6 6 (3.82%) Replication
6 6 (3.82%) User Experience
7 5 (3.18%) Algorithms
7 5 (3.18%) Fintech
8 4 (2.55%) BYOD
8 4 (2.55%) EMC VMAX
8 4 (2.55%) Music Streaming
9 3 (1.91%) Distributed Denial-of-Service
9 3 (1.91%) Fedwire
9 3 (1.91%) Linux Command Line
9 3 (1.91%) PKI
9 3 (1.91%) Public Cloud
10 2 (1.27%) Cloud Native
10 2 (1.27%) Greenfield Project
10 2 (1.27%) HP Storage
Operating Systems
1 50 (31.85%) Windows
2 21 (13.38%) Linux
3 18 (11.46%) Unix
4 15 (9.55%) Windows Server
5 10 (6.37%) Solaris
6 8 (5.10%) Windows Server 2008
7 6 (3.82%) Windows 10
7 6 (3.82%) Windows Server 2012
8 5 (3.18%) Windows 7
9 4 (2.55%) Red Hat Enterprise Linux
10 3 (1.91%) AIX
10 3 (1.91%) Android
10 3 (1.91%) CentOS
11 2 (1.27%) Mac OS X
11 2 (1.27%) Windows Server 2003
12 1 (0.64%) Apple iOS
12 1 (0.64%) CatOS
Processes & Methodologies
1 31 (19.75%) Web Filtering
2 21 (13.38%) Information Security
3 20 (12.74%) Change Management
3 20 (12.74%) ITIL
3 20 (12.74%) Patch Management
4 19 (12.10%) Email Filtering
5 16 (10.19%) Analytics
6 14 (8.92%) SIEM
7 13 (8.28%) Cybersecurity
7 13 (8.28%) Security Patching
7 13 (8.28%) Vulnerability Management
8 12 (7.64%) Security Operations
9 10 (6.37%) Continuous Improvement
9 10 (6.37%) Project Management
9 10 (6.37%) Statistics
10 9 (5.73%) Anti-Money Laundering
10 9 (5.73%) Migration
10 9 (5.73%) Open Source
10 9 (5.73%) Time Management
11 8 (5.10%) Identity Access Management
Programming Languages
1 32 (20.38%) SQL
2 22 (14.01%) Python
3 16 (10.19%) JavaScript
4 13 (8.28%) PowerShell
5 12 (7.64%) Java
6 7 (4.46%) R
7 5 (3.18%) Perl
7 5 (3.18%) PHP
8 4 (2.55%) C#
8 4 (2.55%) C++
8 4 (2.55%) Shell Script
9 3 (1.91%) Bash Shell
9 3 (1.91%) ES6
9 3 (1.91%) PL/SQL
9 3 (1.91%) Ruby
10 2 (1.27%) T-SQL
10 2 (1.27%) VBA
10 2 (1.27%) VBScript
11 1 (0.64%) Groovy
11 1 (0.64%) Scala
Qualifications
1 8 (5.10%) Cisco Certification
2 7 (4.46%) CISSP
2 7 (4.46%) Degree
2 7 (4.46%) MCSE
2 7 (4.46%) Microsoft Certification
2 7 (4.46%) Security Cleared
3 4 (2.55%) PhD
3 4 (2.55%) SC Cleared
4 3 (1.91%) CCIE
4 3 (1.91%) CCNA
4 3 (1.91%) CCNP
4 3 (1.91%) CISM
4 3 (1.91%) MCITP
4 3 (1.91%) MCSA
5 2 (1.27%) CEH
5 2 (1.27%) DBS Check
5 2 (1.27%) DV Cleared
5 2 (1.27%) GCIA
5 2 (1.27%) GCIH
5 2 (1.27%) ITIL Certification
Quality Assurance & Compliance
1 11 (7.01%) ISO/IEC 27001
2 7 (4.46%) PCI DSS
2 7 (4.46%) RMADS
3 3 (1.91%) Sarbanes-Oxley
3 3 (1.91%) SEPA
3 3 (1.91%) SLA
4 2 (1.27%) COBIT
4 2 (1.27%) HIPAA
4 2 (1.27%) PMO
5 1 (0.64%) FedRAMP
5 1 (0.64%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
5 1 (0.64%) MiFID
5 1 (0.64%) NIST 800
System Software
1 44 (28.03%) Active Directory
2 29 (18.47%) VMware Infrastructure
3 12 (7.64%) Hyper-V
4 8 (5.10%) iptables
4 8 (5.10%) vSphere
5 7 (4.46%) Virtual Machines
6 5 (3.18%) BitLocker
6 5 (3.18%) Terminal Services
7 4 (2.55%) VMware ESXi
8 2 (1.27%) VirtualBox
8 2 (1.27%) XenApp
9 1 (0.64%) Docker
9 1 (0.64%) IAG
9 1 (0.64%) Microsoft Virtual Server
9 1 (0.64%) Virtual Servers
Systems Management
1 9 (5.73%) Backup Exec
1 9 (5.73%) SCCM
2 7 (4.46%) Nessus
2 7 (4.46%) Network Intrusion Detection System
3 4 (2.55%) Ansible
3 4 (2.55%) Cacti
3 4 (2.55%) Nagios
3 4 (2.55%) NetBackup
3 4 (2.55%) Puppet
3 4 (2.55%) SELinux
4 3 (1.91%) Control-M
4 3 (1.91%) Kibana
4 3 (1.91%) Opscode Chef
4 3 (1.91%) SmoothWall
5 2 (1.27%) AirWatch
5 2 (1.27%) Failover Clustering
5 2 (1.27%) Grafana
5 2 (1.27%) Icinga
5 2 (1.27%) Microsoft Intune
5 2 (1.27%) Salt
Vendors
1 38 (24.20%) Cisco
2 31 (19.75%) VMware
3 25 (15.92%) Microsoft
4 14 (8.92%) Citrix
5 12 (7.64%) HP
6 11 (7.01%) Splunk
7 10 (6.37%) SolarWinds
8 8 (5.10%) Oracle
9 7 (4.46%) AlienVault
9 7 (4.46%) CheckPoint
9 7 (4.46%) Symantec
10 6 (3.82%) Bloomberg
10 6 (3.82%) Palo Alto
10 6 (3.82%) Red Hat
10 6 (3.82%) Veeam
11 5 (3.18%) Adobe
11 5 (3.18%) NetApp
11 5 (3.18%) Tableau
12 4 (2.55%) Google
12 4 (2.55%) Ruckus Wireless