The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Open Source skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Open Source over the 3 months to 26 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.

3 months to
26 Mar 2017
Same period 2016 Same period 2015
Open Source
London / City of London
Rank 73 108 109
Rank change year-on-year +35 +1  
Contract jobs citing Open Source 87 50 86
As % of all contract IT jobs advertised in the City of London 2.91% 1.50% 1.69%
As % of the Processes & Methodologies category 3.40% 1.71% 2.05%
Number of daily rates quoted 79 43 64
Median daily rate £525 £500 £500
Median daily rate % change year-on-year +5.00% -  
90% offered a daily rate of more than £433 £403 £358
10% offered a daily rate of more than £600 £625 £625
UK excluding London median daily rate £465 £420 £400
% change year-on-year +10.71% +5.00%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £40.00 £30.00 £39.90
% change year-on-year +33.33% -24.81%  

Open Source is in the process and methodology skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the City of London with a requirement for process and methodology skills.

Contract Process & Methodology Skills
City of London
Contract job vacancies with a requirement for process and methodology skills 2561 2922 4205
As % of all contract IT job vacancies advertised in the City of London 85.54% 87.83% 82.45%
Number of daily rates quoted 2008 2335 3244
Median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.55%  
90% offered a daily rate of more than £345 £325 £320
10% offered a daily rate of more than £625 £625 £625
UK excluding London median daily rate £410 £400 £398
% change year-on-year +2.50% +0.62%  
Number of hourly rates quoted 22 27 36
Median hourly rate £16.00 £20.89 £20.45
Median hourly rate % change year-on-year -23.40% +2.17%  
90% offered a hourly rate of more than £13.50 £14.20 £12.50
10% offered a hourly rate of more than £28.35 £47.50 £92.50
UK excluding London median hourly rate £36.00 £38.75 £30.00
% change year-on-year -7.09% +29.16%  

Open Source
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing Open Source as a proportion of all contract or permanent IT jobs with a match in the Processes & Methodologies category.

Job vacancy trend for Open Source in the City of London

Open Source
Contractor Daily Rate Trend in the City of London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Open Source in the City of London.

Contractor daily rate trend for Open Source in the City of London

Open Source
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Open Source in the City of London over the 3 months to 26 March 2017.

Contractor daily rate histogram for Open Source in the City of London

Open Source
Contractor Hourly Rate Trend in the City of London

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

Contractor hourly rate trend for Open Source in the City of London

Open Source
Top 30 Related IT Skills in the City of London

For the 6 months to 26 March 2017, IT contractor jobs citing Open Source 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 City of London region with a requirement for Open Source.

1 85 (49.42%) Agile Software Development
2 62 (36.05%) DevOps
3 55 (31.98%) Linux
4 54 (31.40%) Java
5 47 (27.33%) TDD
6 46 (26.74%) Finance
7 44 (25.58%) Python
8 40 (23.26%) Continuous Integration
9 37 (21.51%) Big Data
10 36 (20.93%) Jenkins
11 35 (20.35%) JavaScript
12 33 (19.19%) Web Services
13 31 (18.02%) HTML
14 29 (16.86%) CSS
15 28 (16.28%) High Availability
15 28 (16.28%) Puppet
15 28 (16.28%) NoSQL
16 27 (15.70%) Unix
17 26 (15.12%) Opscode Chef
18 25 (14.53%) Configuration Management
19 24 (13.95%) Ruby
19 24 (13.95%) Ansible
19 24 (13.95%) Amazon AWS
20 23 (13.37%) Git (software)
20 23 (13.37%) MongoDB
20 23 (13.37%) Apache Cassandra
20 23 (13.37%) AngularJS
20 23 (13.37%) Banking
21 22 (12.79%) Scrum
21 22 (12.79%) Spring

Open Source
Top Related 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:

Application Platforms
1 15 (8.72%) Apache Spark
2 13 (7.56%) Confluence
3 10 (5.81%) Apache
4 9 (5.23%) OpenStack
5 6 (3.49%) Apache Pig
5 6 (3.49%) JBoss
6 4 (2.33%) CMS
6 4 (2.33%) nginx
7 3 (1.74%) Elasticsearch
7 3 (1.74%) Jupyter
8 2 (1.16%) Apache Solr
8 2 (1.16%) Cloud Foundry
8 2 (1.16%) Drupal
8 2 (1.16%) Hubot
8 2 (1.16%) Mule
8 2 (1.16%) Oracle SOA Suite
8 2 (1.16%) WebLogic
9 1 (0.58%) IIS
9 1 (0.58%) SAS
9 1 (0.58%) Tomcat
Applications
1 3 (1.74%) MS Excel
2 1 (0.58%) Spreadsheet
Business Applications
1 2 (1.16%) SAP Oil and Gas
2 1 (0.58%) ION MarketView
2 1 (0.58%) Magento
2 1 (0.58%) OpenCart
2 1 (0.58%) Shopify
Cloud Services
1 24 (13.95%) Amazon AWS
2 15 (8.72%) Microsoft Azure
3 10 (5.81%) IaaS
4 9 (5.23%) PaaS
5 5 (2.91%) SaaS
5 5 (2.91%) Slack
6 4 (2.33%) Office 365
6 4 (2.33%) Trello
7 3 (1.74%) AWS CloudFormation
7 3 (1.74%) GitHub
8 2 (1.16%) Amazon EC2
8 2 (1.16%) Cloud Computing
8 2 (1.16%) Datadog
8 2 (1.16%) Yammer
9 1 (0.58%) Akamai
9 1 (0.58%) Amazon S3
9 1 (0.58%) Google Cloud Platform
9 1 (0.58%) Google Compute Engine
9 1 (0.58%) Heroku
Communications & Networking
1 16 (9.30%) Internet
2 8 (4.65%) LDAP
3 7 (4.07%) Firewall
4 4 (2.33%) Kerberos
4 4 (2.33%) LAN
4 4 (2.33%) Network Security
5 3 (1.74%) DNS
6 2 (1.16%) HTTP
6 2 (1.16%) SSL
6 2 (1.16%) TCP/IP
6 2 (1.16%) VPN
7 1 (0.58%) Cisco ASA
7 1 (0.58%) DHCP
7 1 (0.58%) Intranet
7 1 (0.58%) Intrusion Detection
7 1 (0.58%) WAN
7 1 (0.58%) Wireless
7 1 (0.58%) WLAN
Database & Business Intelligence
1 37 (21.51%) Big Data
2 28 (16.28%) NoSQL
3 23 (13.37%) Apache Cassandra
3 23 (13.37%) MongoDB
4 20 (11.63%) Hadoop
5 18 (10.47%) PostgreSQL
6 12 (6.98%) MySQL
7 10 (5.81%) Relational Database
8 9 (5.23%) Apache Hive
8 9 (5.23%) SQL Server
9 8 (4.65%) HBase
10 6 (3.49%) Data Lake
10 6 (3.49%) RDBMS
10 6 (3.49%) SQLite
11 5 (2.91%) Flink
11 5 (2.91%) Redis
12 4 (2.33%) Data Warehouse
12 4 (2.33%) Neo4j
13 3 (1.74%) BusinessObjects
13 3 (1.74%) Cloudera CDH
Development Applications
1 36 (20.93%) Jenkins
2 23 (13.37%) Git (software)
3 16 (9.30%) JIRA
4 9 (5.23%) Cucumber
4 9 (5.23%) JUnit
5 7 (4.07%) Selenium
6 5 (2.91%) Bitbucket
6 5 (2.91%) Jasmine
7 4 (2.33%) Ant
7 4 (2.33%) Atlassian Bamboo
7 4 (2.33%) Gradle
7 4 (2.33%) jMock
7 4 (2.33%) Maven
7 4 (2.33%) Mercurial
7 4 (2.33%) Sonatype Nexus
7 4 (2.33%) Subversion
7 4 (2.33%) TeamCity
8 3 (1.74%) Eclipse
8 3 (1.74%) Grunt
8 3 (1.74%) gulp
General
1 46 (26.74%) Finance
2 23 (13.37%) Banking
3 6 (3.49%) Front Office
4 4 (2.33%) Advertising
4 4 (2.33%) Retail
5 3 (1.74%) Investment Banking
5 3 (1.74%) Marketing
6 2 (1.16%) Billing
6 2 (1.16%) Electronics
6 2 (1.16%) Manufacturing
6 2 (1.16%) Telecoms
7 1 (0.58%) Financial Institution
7 1 (0.58%) Legal
7 1 (0.58%) Publishing
Job Titles
1 71 (41.28%) Developer
2 29 (16.86%) Java Developer
3 27 (15.70%) DevOps Engineer
4 18 (10.47%) Architect
5 12 (6.98%) JavaScript Developer
5 12 (6.98%) Senior Developer
6 11 (6.40%) Android Developer
7 10 (5.81%) AWS DevOps
7 10 (5.81%) Linux Engineer
8 8 (4.65%) Node.js Developer
9 7 (4.07%) AWS Developer
9 7 (4.07%) Front End Developer (Client-Side Developer)
9 7 (4.07%) Full Stack Developer
9 7 (4.07%) Lead Developer
9 7 (4.07%) Senior Java Developer
9 7 (4.07%) Technical Architect
10 6 (3.49%) Analyst
10 6 (3.49%) Azure DevOps
10 6 (3.49%) Linux DevOps Engineer
10 6 (3.49%) Linux/Unix DevOps
Libraries, Frameworks & Software Standards
1 33 (19.19%) Web Services
2 31 (18.02%) HTML
3 29 (16.86%) CSS
4 23 (13.37%) AngularJS
5 22 (12.79%) Node.js
5 22 (12.79%) Spring
6 20 (11.63%) REST
7 16 (9.30%) React
7 16 (9.30%) RESTful
8 11 (6.40%) HTML5
8 11 (6.40%) SOAP
9 10 (5.81%) XML
10 9 (5.23%) .NET
10 9 (5.23%) JSON
10 9 (5.23%) Kafka
11 8 (4.65%) CSS3
11 8 (4.65%) RxJava
12 7 (4.07%) J2EE
12 7 (4.07%) jQuery
13 5 (2.91%) Ajax
Miscellaneous
1 19 (11.05%) User Experience
2 11 (6.40%) RIA
3 10 (5.81%) Client/Server
4 9 (5.23%) Mobile App
5 8 (4.65%) Analytical Skills
6 7 (4.07%) Computer Science
6 7 (4.07%) Public Cloud
7 4 (2.33%) Algorithms
7 4 (2.33%) Enterprise Software
7 4 (2.33%) Virtual Team
8 3 (1.74%) N-Tier
9 2 (1.16%) Data Protection Act
9 2 (1.16%) Data Structures
9 2 (1.16%) Fixed Income
9 2 (1.16%) Foreign Exchange (FX)
10 1 (0.58%) Cyber Attack
10 1 (0.58%) Cyberthreat
10 1 (0.58%) Enterprise Cloud
10 1 (0.58%) Fintech
10 1 (0.58%) Internet of Things
Operating Systems
1 55 (31.98%) Linux
2 27 (15.70%) Unix
3 21 (12.21%) Windows
4 19 (11.05%) Red Hat Enterprise Linux
5 15 (8.72%) Android
6 3 (1.74%) CentOS
6 3 (1.74%) Windows Server
7 2 (1.16%) Apple iOS
7 2 (1.16%) CoreOS
8 1 (0.58%) FreeBSD
8 1 (0.58%) Ubuntu
Processes & Methodologies
1 85 (49.42%) Agile Software Development
2 62 (36.05%) DevOps
3 47 (27.33%) TDD
4 40 (23.26%) Continuous Integration
5 28 (16.28%) High Availability
6 25 (14.53%) Configuration Management
7 22 (12.79%) Scrum
8 21 (12.21%) Microservices
9 19 (11.05%) Service Design
10 18 (10.47%) Web Development
11 17 (9.88%) OO
12 16 (9.30%) Continuous Delivery
12 16 (9.30%) Low Latency
13 15 (8.72%) Android Development
13 15 (8.72%) Mentoring
13 15 (8.72%) Software Engineering
14 12 (6.98%) Continuous Improvement
15 11 (6.40%) Analytics
15 11 (6.40%) BDD
15 11 (6.40%) E-Commerce
Programming Languages
1 54 (31.40%) Java
2 44 (25.58%) Python
3 35 (20.35%) JavaScript
4 24 (13.95%) Ruby
5 18 (10.47%) SQL
6 13 (7.56%) Scala
7 11 (6.40%) Bash Shell
8 7 (4.07%) Go
8 7 (4.07%) PowerShell
9 6 (3.49%) PHP
10 5 (2.91%) ES6
10 5 (2.91%) R
11 3 (1.74%) Apex Code
11 3 (1.74%) MATLAB
11 3 (1.74%) Perl
11 3 (1.74%) Shell Script
11 3 (1.74%) SOQL
11 3 (1.74%) SOSL
12 2 (1.16%) C#
12 2 (1.16%) C++
Qualifications
1 15 (8.72%) Security Cleared
2 12 (6.98%) Degree
3 10 (5.81%) SC Cleared
4 4 (2.33%) DV Cleared
4 4 (2.33%) RHCA
4 4 (2.33%) RHCE
5 3 (1.74%) ITIL Certification
5 3 (1.74%) PhD
6 2 (1.16%) OCPJP
6 2 (1.16%) Oracle Certification
7 1 (0.58%) CEH
7 1 (0.58%) CHECK Team Member
7 1 (0.58%) CISMP
7 1 (0.58%) CISSP
7 1 (0.58%) CTC Cleared
7 1 (0.58%) GIAC
7 1 (0.58%) ISEB
7 1 (0.58%) ISTQB
Quality Assurance & Compliance
1 10 (5.81%) QA
2 2 (1.16%) Disclosure Scotland
3 1 (0.58%) Data Quality
3 1 (0.58%) ISO/IEC 27001
3 1 (0.58%) PCI DSS
System Software
1 19 (11.05%) Docker
2 10 (5.81%) Active Directory
3 4 (2.33%) HDFS
4 1 (0.58%) Apache Flume
4 1 (0.58%) Ceph
4 1 (0.58%) GlusterFS
4 1 (0.58%) Varnish
4 1 (0.58%) vCloud
4 1 (0.58%) VMware Infrastructure
4 1 (0.58%) vSphere
4 1 (0.58%) Xen
4 1 (0.58%) XenServer
Systems Management
1 28 (16.28%) Puppet
2 26 (15.12%) Opscode Chef
3 24 (13.95%) Ansible
4 9 (5.23%) Hadoop YARN
5 8 (4.65%) Terraform
6 5 (2.91%) Kubernetes
7 4 (2.33%) Grafana
7 4 (2.33%) MOM
7 4 (2.33%) Oracle Identity Manager
7 4 (2.33%) Tivoli Identity Manager
8 3 (1.74%) Consul
8 3 (1.74%) Graphite
8 3 (1.74%) Mesos
8 3 (1.74%) Nagios
9 2 (1.16%) Dollar Universe
9 2 (1.16%) Marathon
9 2 (1.16%) Salt
10 1 (0.58%) Capistrano
10 1 (0.58%) OSSEC
10 1 (0.58%) ZABBIX
Vendors
1 19 (11.05%) Oracle
2 14 (8.14%) Red Hat
3 7 (4.07%) Atlassian
4 6 (3.49%) Hortonworks
4 6 (3.49%) Microsoft
5 5 (2.91%) IBM
5 5 (2.91%) Tableau
5 5 (2.91%) VMware
6 4 (2.33%) Citrix
6 4 (2.33%) Cloudera
6 4 (2.33%) Splunk
6 4 (2.33%) TIBCO
7 3 (1.74%) Informatica
7 3 (1.74%) Salesforce.com
7 3 (1.74%) SaltStack
7 3 (1.74%) SAP
8 2 (1.16%) AppDynamics
8 2 (1.16%) Facebook
8 2 (1.16%) MuleSoft
8 2 (1.16%) Teradata
City of London
Pearson Frank
Rate: £350 - £550 per day
Posted: 10 hours ago
City of London
Pearson Frank
Rate: £550 - £600 per day
Posted: 11 hours ago
City of London
Pearson Frank
Rate: £250 - £300 per day
Posted: 10 hours ago
City, London
Computer People
Rate: £550 - £600 per day
Posted: 2 days ago
City, London
Testing Circle Ltd
Rate: £0.00 per annum
Posted: 4 days ago
City, London
E-synergy Solutions
Rate: £450 - £550 per day
Posted: 5 days ago
City, London
Spargonet Consulting Plc
Rate: £400 - £500 per day
Posted: 2 days ago
City of London
Arrows Group Ltd
Rate: £500 - £600 per day
Posted: 5 days ago
City, London
People Source Consulting
Rate: £500 - £650 per day
Posted: 2 days ago
City, London
LA International
Rate: £500 - £635 per day
Posted: 3 days ago
City, London
Staffworx Ltd
Rate: excellent rates, 6 months initial contract
Posted: 5 days ago
City, London
Linux Recruit
Rate: £300 - £350 per day
Posted: 6 days ago