The following table provides summary statistics for contract job vacancies advertised in Cambridge 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 23 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
23 Mar 2017
Same period 2016 Same period 2015
Open Source
Cambridgeshire / Cambridge
Rank 34 43 36
Rank change year-on-year +9 -7  
Contract jobs citing Open Source 2 3 2
As % of all contract IT jobs advertised in Cambridge 0.65% 0.75% 0.62%
As % of the Processes & Methodologies category 0.78% 0.90% 0.81%
Number of daily rates quoted 0 3 1
Median daily rate - £360 £320
Median daily rate % change year-on-year - +12.50%  
UK excluding London median daily rate £460 £413 £400
% change year-on-year +11.51% +3.12%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £40.00 £32.50 £39.90
% change year-on-year +23.07% -18.54%  

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 Cambridge with a requirement for process and methodology skills.

Contract Process & Methodology Skills
Cambridge
Contract job vacancies with a requirement for process and methodology skills 255 332 247
As % of all contract IT job vacancies advertised in Cambridge 82.79% 82.59% 76.95%
Number of daily rates quoted 130 206 157
Median daily rate £425 £413 £375
Median daily rate % change year-on-year +3.03% +10.00%  
90% offered a daily rate of more than £225 £288 £230
10% offered a daily rate of more than £525 £525 £538
UK excluding London median daily rate £410 £400 £399
% change year-on-year +2.50% +0.29%  
Number of hourly rates quoted 38 27 16
Median hourly rate £36.75 £37.50 £25.00
Median hourly rate % change year-on-year -2.00% +50.00%  
90% offered a hourly rate of more than £13.00 £17.50 £13.50
10% offered a hourly rate of more than £68.00 £60.00 £43.00
UK excluding London median hourly rate £36.00 £39.00 £30.00
% change year-on-year -7.69% +30.00%  

Open Source
Job Vacancy Trend in Cambridge

The job posting trend of jobs advertised in Cambridge 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 Cambridge

Open Source
Contractor Daily Rate Trend in Cambridge

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

Contractor daily rate trend for Open Source in Cambridge

Open Source
Contractor Hourly Rate Trend in Cambridge

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

Contractor hourly rate trend for Open Source in Cambridge

Open Source
Top 30 Related IT Skills in Cambridge

For the 6 months to 23 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 Cambridge region with a requirement for Open Source.

1 10 (62.50%) Agile Software Development
2 8 (50.00%) Java
2 8 (50.00%) Big Data
2 8 (50.00%) Analytics
3 7 (43.75%) PostgreSQL
3 7 (43.75%) MongoDB
3 7 (43.75%) NoSQL
4 6 (37.50%) Talend Open Studio
4 6 (37.50%) Cloud Computing
4 6 (37.50%) Scala
4 6 (37.50%) Data Integration
4 6 (37.50%) Data Warehouse
4 6 (37.50%) ETL
4 6 (37.50%) Business Intelligence
4 6 (37.50%) Talend
5 5 (31.25%) JUnit
5 5 (31.25%) SQL
5 5 (31.25%) XML
5 5 (31.25%) OO
5 5 (31.25%) Hibernate
5 5 (31.25%) MVC
5 5 (31.25%) TDD
5 5 (31.25%) Spring
5 5 (31.25%) JPA
5 5 (31.25%) JSON
5 5 (31.25%) JIRA
5 5 (31.25%) Git (software)
5 5 (31.25%) Domain-Driven Design
5 5 (31.25%) Mercurial
5 5 (31.25%) REST

Open Source
Top Related IT Skills in Cambridge 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 2 (12.50%) Apache
1 2 (12.50%) Apache Pig
1 2 (12.50%) Apache Spark
1 2 (12.50%) SAS
2 1 (6.25%) Mule
2 1 (6.25%) Mule ESB
Business Applications
1 4 (25.00%) Payment Gateway
Cloud Services
1 6 (37.50%) Cloud Computing
2 2 (12.50%) Veeva
3 1 (6.25%) Amazon AWS
Database & Business Intelligence
1 8 (50.00%) Big Data
2 7 (43.75%) MongoDB
2 7 (43.75%) NoSQL
2 7 (43.75%) PostgreSQL
3 6 (37.50%) Data Warehouse
4 2 (12.50%) Apache Hive
4 2 (12.50%) Data Lake
4 2 (12.50%) Hadoop
4 2 (12.50%) HBase
4 2 (12.50%) RDBMS
4 2 (12.50%) Relational Database
5 1 (6.25%) Spotfire
Development Applications
1 6 (37.50%) Talend Open Studio
2 5 (31.25%) Git (software)
2 5 (31.25%) JIRA
2 5 (31.25%) JUnit
2 5 (31.25%) Mercurial
2 5 (31.25%) Mockito
3 4 (25.00%) Atlassian Bamboo
3 4 (25.00%) IntelliJ
3 4 (25.00%) Jenkins
3 4 (25.00%) WebStorm
4 3 (18.75%) Maven
General
1 1 (6.25%) Finance
1 1 (6.25%) Pharmaceutical
Job Titles
1 13 (81.25%) Developer
2 7 (43.75%) Java Developer
3 4 (25.00%) Senior Developer
3 4 (25.00%) Talend Developer
4 2 (12.50%) Analyst
4 2 (12.50%) Business Analyst
4 2 (12.50%) CRM Analyst
4 2 (12.50%) CRM Business Analyst
4 2 (12.50%) Hadoop Developer
4 2 (12.50%) Java Hadoop Developer
5 1 (6.25%) Apache Spark Developer
5 1 (6.25%) Business Developer
5 1 (6.25%) Business Intelligence Developer
5 1 (6.25%) Integration Developer
5 1 (6.25%) Senior Business Intelligence Developer
5 1 (6.25%) Technical Leader
5 1 (6.25%) XML Developer
Libraries, Frameworks & Software Standards
1 5 (31.25%) Hibernate
1 5 (31.25%) JPA
1 5 (31.25%) JSON
1 5 (31.25%) REST
1 5 (31.25%) Spring
1 5 (31.25%) XML
2 4 (25.00%) HTML
2 4 (25.00%) HTML5
2 4 (25.00%) jQuery
2 4 (25.00%) XML Schema
3 2 (12.50%) Kafka
4 1 (6.25%) J2EE
4 1 (6.25%) Web Services
Miscellaneous
1 1 (6.25%) Data Structures
Processes & Methodologies
1 10 (62.50%) Agile Software Development
2 8 (50.00%) Analytics
3 6 (37.50%) Business Intelligence
3 6 (37.50%) Data Integration
3 6 (37.50%) ETL
4 5 (31.25%) Domain-Driven Design
4 5 (31.25%) MVC
4 5 (31.25%) OO
4 5 (31.25%) TDD
5 4 (25.00%) BDD
5 4 (25.00%) BPMN
5 4 (25.00%) Continuous Integration
5 4 (25.00%) Information Security
5 4 (25.00%) Process Improvement
6 3 (18.75%) Data Architecture
6 3 (18.75%) ETL Development
6 3 (18.75%) Stakeholder Management
7 2 (12.50%) BPR
7 2 (12.50%) CRM
7 2 (12.50%) Use Case
Programming Languages
1 8 (50.00%) Java
2 6 (37.50%) Scala
3 5 (31.25%) SQL
4 4 (25.00%) Groovy
4 4 (25.00%) JavaScript
5 2 (12.50%) Python
Quality Assurance & Compliance
1 1 (6.25%) CDISC
1 1 (6.25%) HL7
Systems Management
1 2 (12.50%) Hadoop YARN
Vendors
1 6 (37.50%) Talend
2 2 (12.50%) Hortonworks