The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for Riak skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Riak over the 3 months to 29 March 2017 with a comparison to the same period in the previous 2 years.

Riak
London / City of London
3 months to
29 Mar 2017
Same period 2016 Same period 2015
Rank 217 255 315
Rank change year-on-year +38 +60  
Permanent jobs citing Riak 6 13 4
As % of all permanent IT jobs advertised in the City of London 0.12% 0.18% 0.039%
As % of the Database & Business Intelligence category 0.36% 0.63% 0.14%
Number of salaries quoted 6 13 4
Median salary £62,500 £62,500 £43,750
Median salary % change year-on-year - +42.85%  
UK excluding London median salary £55,000 £47,500 £55,000
% change year-on-year +15.78% -13.63%  

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

Database & Business Intelligence Skills
City of London
Permanent job vacancies with a requirement for database and business intelligence skills 1663 2052 2882
As % of all permanent IT job vacancies advertised in the City of London 32.32% 28.58% 27.74%
Number of salaries quoted 1513 1821 2527
Median salary £62,500 £55,000 £55,000
Median salary % change year-on-year +13.63% -  
90% offered a salary of more than £40,800 £40,000 £38,500
10% offered a salary of more than £80,000 £75,000 £75,000
UK excluding London median salary £42,500 £42,500 £40,000
% change year-on-year - +6.25%  

Riak
Job Vacancy Trend in the City of London

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

Job vacancy trend for Riak in the City of London

Riak
Salary Trend in the City of London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Riak in the City of London.

Salary trend for Riak in the City of London

For the 6 months to 29 March 2017, IT jobs citing Riak also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the City of London region with a requirement for Riak.

1 9 (100.00%) Java
1 9 (100.00%) Perl
1 9 (100.00%) MySQL
1 9 (100.00%) Oracle
1 9 (100.00%) SQL Server
1 9 (100.00%) WebLogic
1 9 (100.00%) UML
1 9 (100.00%) OO
1 9 (100.00%) JBoss
1 9 (100.00%) RUP
1 9 (100.00%) Tomcat
1 9 (100.00%) DSDM
1 9 (100.00%) Python
1 9 (100.00%) Agile Software Development
1 9 (100.00%) TDD
1 9 (100.00%) Banking
1 9 (100.00%) Retail
1 9 (100.00%) Lucene
1 9 (100.00%) WebSphere
1 9 (100.00%) Web Development
1 9 (100.00%) Continuous Integration
1 9 (100.00%) Jetty
1 9 (100.00%) Multithreading
1 9 (100.00%) Kanban
1 9 (100.00%) PostgreSQL
1 9 (100.00%) Scrum
1 9 (100.00%) Apache Solr
1 9 (100.00%) Hadoop
1 9 (100.00%) Microsoft Azure
1 9 (100.00%) Amazon AWS

Riak
Co-occurring 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 9 (100.00%) Apache Solr
1 9 (100.00%) Apache Spark
1 9 (100.00%) Elasticsearch
1 9 (100.00%) JBoss
1 9 (100.00%) Jetty
1 9 (100.00%) OpenStack
1 9 (100.00%) Tomcat
1 9 (100.00%) WebLogic
1 9 (100.00%) WebSphere
2 3 (33.33%) WebSphere Application Server
Cloud Services
1 9 (100.00%) Amazon AWS
1 9 (100.00%) Microsoft Azure
Database & Business Intelligence
1 9 (100.00%) Apache Cassandra
1 9 (100.00%) Big Data
1 9 (100.00%) Couchbase
1 9 (100.00%) Hadoop
1 9 (100.00%) MongoDB
1 9 (100.00%) MySQL
1 9 (100.00%) NoSQL
1 9 (100.00%) PostgreSQL
1 9 (100.00%) Redis
1 9 (100.00%) SQL Server
2 6 (66.67%) Data Warehouse
General
1 9 (100.00%) Banking
1 9 (100.00%) Retail
Job Titles
1 9 (100.00%) Developer
1 9 (100.00%) Java Developer
2 3 (33.33%) Senior Developer
2 3 (33.33%) Senior Java Developer
Libraries, Frameworks & Software Standards
1 9 (100.00%) AngularJS
1 9 (100.00%) Elastic Stack
1 9 (100.00%) Lucene
1 9 (100.00%) React
Miscellaneous
1 3 (33.33%) Enterprise Software
Operating Systems
1 6 (66.67%) Android
1 6 (66.67%) Apple iOS
Processes & Methodologies
1 9 (100.00%) Agile Software Development
1 9 (100.00%) Coaching
1 9 (100.00%) Concurrent Programming
1 9 (100.00%) Continuous Integration
1 9 (100.00%) DSDM
1 9 (100.00%) Kanban
1 9 (100.00%) Mentoring
1 9 (100.00%) Multithreading
1 9 (100.00%) OO
1 9 (100.00%) RUP
1 9 (100.00%) Scrum
1 9 (100.00%) Software Delivery
1 9 (100.00%) TDD
1 9 (100.00%) UML
1 9 (100.00%) Web Development
2 6 (66.67%) DevOps
2 6 (66.67%) Mobile Development
3 3 (33.33%) Waterfall
Programming Languages
1 9 (100.00%) Bash Shell
1 9 (100.00%) Go
1 9 (100.00%) Java
1 9 (100.00%) Perl
1 9 (100.00%) Python
2 6 (66.67%) C#
2 6 (66.67%) JavaScript
3 3 (33.33%) PHP
Systems Management
1 9 (100.00%) Ansible
1 9 (100.00%) Kibana
1 9 (100.00%) logstash
1 9 (100.00%) Opscode Chef
1 9 (100.00%) Puppet
1 9 (100.00%) Salt
Vendors
1 9 (100.00%) Oracle