The following table provides summary statistics for contract job vacancies advertised in London with a requirement for RavenDB skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited RavenDB over the 3 months to 25 April 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.

RavenDB
England / London
3 months to
25 Apr 2017
Same period 2016 Same period 2015
Rank 403 436 422
Rank change year-on-year +33 -14  
Contract jobs citing RavenDB 9 5 3
As % of all contract IT jobs advertised in London 0.045% 0.022% 0.013%
As % of the Database & Business Intelligence category 0.18% 0.091% 0.055%
Number of daily rates quoted 8 3 3
Median daily rate £463 £500 £325
Median daily rate % change year-on-year -7.50% +53.84%  
UK excluding London median daily rate £350 £400 -
% change year-on-year -12.50% -  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

RavenDB is in the database and business intelligence skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in London with a requirement for database and business intelligence skills.

Contract Database & Business Intelligence Skills
London
Contract job vacancies with a requirement for database and business intelligence skills 4978 5518 5470
As % of all contract IT job vacancies advertised in London 24.64% 23.89% 24.14%
Number of daily rates quoted 3610 3987 3807
Median daily rate £488 £475 £450
Median daily rate % change year-on-year +2.63% +5.55%  
90% offered a daily rate of more than £350 £330 £310
10% offered a daily rate of more than £625 £601 £600
UK excluding London median daily rate £400 £388 £375
% change year-on-year +3.22% +3.33%  
Number of hourly rates quoted 21 31 39
Median hourly rate £35.00 £27.50 £25.77
Median hourly rate % change year-on-year +27.27% +6.70%  
90% offered a hourly rate of more than £16.40 £15.91 £14.00
10% offered a hourly rate of more than £81.25 £45.75 £55.00
UK excluding London median hourly rate £29.00 £30.50 £32.50
% change year-on-year -4.91% -6.15%  

RavenDB
Job Vacancy Trend in London

The job posting trend of jobs advertised in London citing RavenDB as a proportion of all contract or permanent IT jobs with a match in the Database & Business Intelligence category.

Job vacancy trend for RavenDB in London

RavenDB
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for RavenDB in London

RavenDB
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 RavenDB within the London region over the 3 months to 25 April 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
Hammersmith - 2 £518 -
City of London +11 1 £413 -
RavenDB
England

For the 6 months to 25 April 2017, IT contractor jobs citing RavenDB 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 RavenDB.

1 14 (93.33%) .NET
1 14 (93.33%) C#
2 12 (80.00%) Agile Software Development
3 11 (73.33%) JavaScript
3 11 (73.33%) NoSQL
4 10 (66.67%) BDD
4 10 (66.67%) AngularJS
4 10 (66.67%) TDD
4 10 (66.67%) Aurelia
5 9 (60.00%) Scrum
6 8 (53.33%) SOA
6 8 (53.33%) Amazon AWS
6 8 (53.33%) Continuous Integration
6 8 (53.33%) SOLID
7 7 (46.67%) Microservices
7 7 (46.67%) OO
8 6 (40.00%) NServiceBus
8 6 (40.00%) TeamCity
9 5 (33.33%) MongoDB
9 5 (33.33%) QA
9 5 (33.33%) Python
10 4 (26.67%) IIS
10 4 (26.67%) Visual Studio
10 4 (26.67%) ASP.NET
10 4 (26.67%) Windows
10 4 (26.67%) MVC
10 4 (26.67%) Microsoft
10 4 (26.67%) Release Management
10 4 (26.67%) Ruby
10 4 (26.67%) Technical Architecture

RavenDB
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 6 (40.00%) NServiceBus
2 4 (26.67%) IIS
3 2 (13.33%) Confluence
4 1 (6.67%) Elasticsearch
Cloud Services
1 8 (53.33%) Amazon AWS
2 4 (26.67%) Amazon CloudWatch
Database & Business Intelligence
1 11 (73.33%) NoSQL
2 5 (33.33%) MongoDB
3 1 (6.67%) Apache Cassandra
3 1 (6.67%) CouchDB
3 1 (6.67%) Hadoop
Development Applications
1 6 (40.00%) TeamCity
2 4 (26.67%) Git (software)
2 4 (26.67%) Octopus Deploy
2 4 (26.67%) Visual Studio
3 2 (13.33%) Fiddler
3 2 (13.33%) JIRA
3 2 (13.33%) SpecFlow
Job Titles
1 6 (40.00%) .NET Developer
1 6 (40.00%) Developer
2 5 (33.33%) Angular Developer
2 5 (33.33%) Architect
2 5 (33.33%) Full Stack Developer
3 4 (26.67%) .NET Architect
3 4 (26.67%) .NET Technical Architect
3 4 (26.67%) C# Architect
3 4 (26.67%) Technical Architect
4 3 (20.00%) DevOps Engineer
5 2 (13.33%) AWS Engineer
5 2 (13.33%) C# .NET Developer
5 2 (13.33%) C# Developer
5 2 (13.33%) JavaScript Developer
5 2 (13.33%) Technical Leader
6 1 (6.67%) Agile Developer
6 1 (6.67%) AWS DevOps
6 1 (6.67%) AWS DevOps Engineer
6 1 (6.67%) C# Software Developer
6 1 (6.67%) Database Architect
Libraries, Frameworks & Software Standards
1 14 (93.33%) .NET
2 10 (66.67%) AngularJS
2 10 (66.67%) Aurelia
3 4 (26.67%) ASP.NET
3 4 (26.67%) ASP.NET MVC
4 2 (13.33%) .NET Framework
4 2 (13.33%) MSMQ
5 1 (6.67%) Angular 2
5 1 (6.67%) Celery
5 1 (6.67%) Django
Miscellaneous
1 1 (6.67%) Greenfield Project
Operating Systems
1 4 (26.67%) Windows
2 2 (13.33%) Windows Server 2012
Processes & Methodologies
1 12 (80.00%) Agile Software Development
2 10 (66.67%) BDD
2 10 (66.67%) TDD
3 9 (60.00%) Scrum
4 8 (53.33%) Continuous Integration
4 8 (53.33%) SOA
4 8 (53.33%) SOLID
5 7 (46.67%) Microservices
5 7 (46.67%) OO
6 4 (26.67%) DevOps
6 4 (26.67%) Domain-Driven Design
6 4 (26.67%) Don't repeat yourself (DRY)
6 4 (26.67%) Event-Driven Architecture
6 4 (26.67%) MVC
6 4 (26.67%) Release Management
6 4 (26.67%) Technical Architecture
7 3 (20.00%) Continuous Delivery
8 2 (13.33%) Configuration Management
8 2 (13.33%) Pair Programming
8 2 (13.33%) Software Engineering
Programming Languages
1 14 (93.33%) C#
2 11 (73.33%) JavaScript
3 5 (33.33%) Python
4 4 (26.67%) PowerShell
4 4 (26.67%) Ruby
5 1 (6.67%) SQL
Quality Assurance & Compliance
1 5 (33.33%) QA
Systems Management
1 4 (26.67%) Ansible
1 4 (26.67%) Opscode Chef
Vendors
1 4 (26.67%) Microsoft
1 4 (26.67%) Splunk