The following table provides summary statistics for contract job vacancies with a requirement for Riak skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Riak over the 3 months to 24 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.

Riak
UK
3 months to
24 Apr 2017
Same period 2016 Same period 2015
Rank 572 650 639
Rank change year-on-year +78 -11  
Contract jobs citing Riak 23 7 9
As % of all contract IT jobs advertised in the UK 0.050% 0.013% 0.016%
As % of the Database & Business Intelligence category 0.22% 0.057% 0.070%
Number of daily rates quoted 15 4 9
Median daily rate £519 £390 £400
Median daily rate % change year-on-year +33.13% -2.50%  
90% offered a daily rate of more than £350 £390 £363
10% offered a daily rate of more than £588 £450 £525
UK excluding London median daily rate £450 £390 £363
% change year-on-year +15.38% +7.58%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

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 contract job vacancies with a requirement for database and business intelligence skills.

Contract Database & Business Intelligence Skills
UK
Contract job vacancies with a requirement for database and business intelligence skills 10533 12231 12917
As % of all contract IT job vacancies advertised in the UK 22.75% 21.88% 22.75%
Number of daily rates quoted 7056 8244 8337
Median daily rate £435 £425 £400
Median daily rate % change year-on-year +2.35% +6.25%  
90% offered a daily rate of more than £310 £300 £275
10% offered a daily rate of more than £575 £600 £550
UK excluding London median daily rate £400 £390 £375
% change year-on-year +2.56% +4.00%  
Number of hourly rates quoted 129 168 173
Median hourly rate £29.50 £27.50 £32.10
Median hourly rate % change year-on-year +7.27% -14.33%  
90% offered a hourly rate of more than £12.00 £13.00 £15.00
10% offered a hourly rate of more than £47.28 £49.95 £46.09
UK excluding London median hourly rate £29.00 £27.50 £32.50
% change year-on-year +5.45% -15.38%  

Riak
Job Vacancy Trend

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

Job vacancy trend for Riak in the UK

Riak
Contractor Daily Rate Trend

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

Contractor daily rate trend for Riak in the UK

Riak
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing Riak over the 3 months to 24 April 2017.

Contractor daily rate histogram for Riak in the UK

Riak
Top 11 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Riak within the UK over the 3 months to 24 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
England +75 23 £519 +33.13% 13
Yorkshire +42 14 £438 - 4
Leeds +30 13 £358 - 4
West Yorkshire +30 13 £358 - 4
London +40 6 £523 +10.00% 2
North West - 2 £450 - 3
City of London +7 1 - -
Lancashire - 1 - -
Manchester - 1 £450 - 3
Home Counties - 1 - -
South East - 1 - -

For the 6 months to 24 April 2017, IT contractor jobs citing Riak also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads with a requirement for Riak.

1 36 (70.59%) Python
2 32 (62.75%) Agile Software Development
3 27 (52.94%) Java
4 26 (50.98%) MongoDB
5 24 (47.06%) Apache Cassandra
6 22 (43.14%) JavaScript
7 21 (41.18%) NoSQL
8 19 (37.25%) Apache Solr
8 19 (37.25%) Relational Database
8 19 (37.25%) Linux
8 19 (37.25%) TDD
9 18 (35.29%) Continuous Integration
9 18 (35.29%) Ansible
9 18 (35.29%) Open Source
9 18 (35.29%) Hadoop
10 17 (33.33%) Apache Spark
10 17 (33.33%) Spring
11 16 (31.37%) Amazon AWS
12 15 (29.41%) Bash Shell
12 15 (29.41%) Kafka
12 15 (29.41%) AngularJS
12 15 (29.41%) Unix
13 14 (27.45%) Docker
13 14 (27.45%) Big Data
14 13 (25.49%) MapReduce
14 13 (25.49%) Apache Hive
14 13 (25.49%) DevOps
14 13 (25.49%) Analytical Skills
14 13 (25.49%) MarkLogic
14 13 (25.49%) Data Warehouse

Riak
Co-occurring IT Skills 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 19 (37.25%) Apache Solr
2 17 (33.33%) Apache Spark
3 12 (23.53%) Apache Pig
4 10 (19.61%) Apache
5 6 (11.76%) OpenStack
6 4 (7.84%) Tomcat
7 2 (3.92%) Confluence
7 2 (3.92%) IIS
7 2 (3.92%) nginx
8 1 (1.96%) Cloud Foundry
8 1 (1.96%) Elasticsearch
8 1 (1.96%) JBoss
8 1 (1.96%) Oracle Coherence
8 1 (1.96%) WebSphere
Cloud Services
1 16 (31.37%) Amazon AWS
2 9 (17.65%) IaaS
3 7 (13.73%) Google Cloud Platform
3 7 (13.73%) Loggly
3 7 (13.73%) Sumo Logic
4 4 (7.84%) Microsoft Azure
5 3 (5.88%) Amazon EC2
6 2 (3.92%) AWS CloudFormation
6 2 (3.92%) Datadog
6 2 (3.92%) PaaS
7 1 (1.96%) GitHub
7 1 (1.96%) Office 365
7 1 (1.96%) Slack
7 1 (1.96%) Trello
Communications & Networking
1 7 (13.73%) HTTP
2 6 (11.76%) DNS
3 4 (7.84%) Internet
4 1 (1.96%) Firewall
4 1 (1.96%) iSCSI
4 1 (1.96%) LAN
4 1 (1.96%) TCP/IP
4 1 (1.96%) WAN
Database & Business Intelligence
1 26 (50.98%) MongoDB
2 24 (47.06%) Apache Cassandra
3 21 (41.18%) NoSQL
4 19 (37.25%) Relational Database
5 18 (35.29%) Hadoop
6 14 (27.45%) Big Data
7 13 (25.49%) Apache Hive
7 13 (25.49%) Data Warehouse
7 13 (25.49%) MarkLogic
7 13 (25.49%) MySQL
8 12 (23.53%) Impala
8 12 (23.53%) Redis
8 12 (23.53%) SQL Server
9 9 (17.65%) PostgreSQL
10 6 (11.76%) HBase
11 5 (9.80%) CouchDB
11 5 (9.80%) Neo4j
12 3 (5.88%) Data Mining
12 3 (5.88%) MariaDB
13 2 (3.92%) RDBMS
Development Applications
1 12 (23.53%) Git (software)
2 11 (21.57%) Jenkins
3 9 (17.65%) Maven
4 7 (13.73%) Grunt
4 7 (13.73%) TeamCity
4 7 (13.73%) Vagrant
5 4 (7.84%) Team Foundation Server
6 3 (5.88%) Artifactory
7 2 (3.92%) Ant
7 2 (3.92%) Apache Archiva
7 2 (3.92%) Atlassian Bamboo
7 2 (3.92%) GitLab
7 2 (3.92%) GoCD
7 2 (3.92%) JIRA
7 2 (3.92%) MSI
7 2 (3.92%) NuGet
7 2 (3.92%) SonarQube
7 2 (3.92%) Sonatype Nexus
General
1 7 (13.73%) Finance
2 1 (1.96%) Banking
2 1 (1.96%) Multimedia
2 1 (1.96%) Telecoms
Job Titles
1 23 (45.10%) Developer
2 13 (25.49%) Java Developer
3 9 (17.65%) Architect
4 7 (13.73%) Technical Architect
5 6 (11.76%) Senior Developer
6 5 (9.80%) .NET Developer
6 5 (9.80%) C# .NET Developer
6 5 (9.80%) C# Developer
6 5 (9.80%) Senior Java Developer
7 4 (7.84%) Angular Developer
7 4 (7.84%) ASP.NET MVC Developer
7 4 (7.84%) AWS DevOps
7 4 (7.84%) Big Data Engineer
7 4 (7.84%) JavaScript Developer
7 4 (7.84%) Node.js Developer
7 4 (7.84%) Senior Software Engineer
7 4 (7.84%) Software Engineer
8 3 (5.88%) Data Engineer
8 3 (5.88%) Python Developer
8 3 (5.88%) Technical Leader
Libraries, Frameworks & Software Standards
1 17 (33.33%) Spring
2 15 (29.41%) AngularJS
2 15 (29.41%) Kafka
3 13 (25.49%) HTML
4 12 (23.53%) Lucene
5 11 (21.57%) CSS
5 11 (21.57%) Hibernate
5 11 (21.57%) RabbitMQ
6 10 (19.61%) .NET
6 10 (19.61%) JMS
6 10 (19.61%) Node.js
7 9 (17.65%) Elastic Stack
8 8 (15.69%) Flask
8 8 (15.69%) HTML5
8 8 (15.69%) jQuery
8 8 (15.69%) Web Services
9 7 (13.73%) CSS3
9 7 (13.73%) React
10 6 (11.76%) ASP.NET
11 5 (9.80%) LAMP
Miscellaneous
1 13 (25.49%) Analytical Skills
2 7 (13.73%) Replication
3 6 (11.76%) NHS
4 5 (9.80%) Algorithms
5 3 (5.88%) Enterprise Software
6 2 (3.92%) Reference Data
6 2 (3.92%) Wiki
7 1 (1.96%) Client/Server
7 1 (1.96%) Derivative
7 1 (1.96%) Foreign Exchange (FX)
7 1 (1.96%) Management Information System
7 1 (1.96%) Smart Home
Operating Systems
1 19 (37.25%) Linux
2 15 (29.41%) Unix
3 6 (11.76%) Red Hat Enterprise Linux
4 5 (9.80%) CentOS
4 5 (9.80%) CoreOS
5 4 (7.84%) Windows
6 1 (1.96%) Android
6 1 (1.96%) Apple iOS
6 1 (1.96%) Solaris
Processes & Methodologies
1 32 (62.75%) Agile Software Development
2 19 (37.25%) TDD
3 18 (35.29%) Continuous Integration
3 18 (35.29%) Open Source
4 13 (25.49%) DevOps
4 13 (25.49%) MapReduce
5 12 (23.53%) BDD
5 12 (23.53%) Data Analysis
5 12 (23.53%) Statistical Modelling
6 10 (19.61%) Scrum
6 10 (19.61%) User Stories
7 9 (17.65%) Digital Transformation Programme
7 9 (17.65%) Kanban
7 9 (17.65%) MVC
7 9 (17.65%) Software Engineering
8 8 (15.69%) Data Management
8 8 (15.69%) Mathematics
8 8 (15.69%) TOGAF
9 7 (13.73%) Enterprise Architecture
9 7 (13.73%) Pair Programming
Programming Languages
1 36 (70.59%) Python
2 27 (52.94%) Java
3 22 (43.14%) JavaScript
4 15 (29.41%) Bash Shell
5 13 (25.49%) C#
5 13 (25.49%) Perl
6 12 (23.53%) R
6 12 (23.53%) Scala
7 11 (21.57%) Ruby
8 9 (17.65%) SQL
9 7 (13.73%) PHP
10 5 (9.80%) CoffeeScript
11 4 (7.84%) Go
12 3 (5.88%) C++
13 2 (3.92%) Elixir
13 2 (3.92%) Groovy
14 1 (1.96%) Erlang
14 1 (1.96%) PowerShell
Qualifications
1 5 (9.80%) Degree
2 3 (5.88%) Security Cleared
3 1 (1.96%) BPSS Clearance
3 1 (1.96%) SC Cleared
Quality Assurance & Compliance
1 8 (15.69%) Data Quality
2 1 (1.96%) Disclosure Scotland
System Software
1 14 (27.45%) Docker
2 5 (9.80%) HDFS
2 5 (9.80%) VMware Infrastructure
3 4 (7.84%) VirtualBox
4 1 (1.96%) Apache Flume
4 1 (1.96%) Apache ZooKeeper
4 1 (1.96%) Oracle RAC
4 1 (1.96%) Postfix
Systems Management
1 18 (35.29%) Ansible
2 12 (23.53%) Hadoop YARN
3 11 (21.57%) Puppet
4 9 (17.65%) Opscode Chef
5 8 (15.69%) Nagios
5 8 (15.69%) ZABBIX
6 7 (13.73%) Kubernetes
6 7 (13.73%) Salt
7 1 (1.96%) Ambari
7 1 (1.96%) Control-M
7 1 (1.96%) Icinga
7 1 (1.96%) Mesos
7 1 (1.96%) Oozie
7 1 (1.96%) Red Hat Satellite
7 1 (1.96%) rkt
7 1 (1.96%) Unicenter
Vendors
1 12 (23.53%) Oracle
2 11 (21.57%) New Relic
3 9 (17.65%) Google
4 8 (15.69%) Splunk
5 7 (13.73%) Rackspace
5 7 (13.73%) SaltStack
6 5 (9.80%) Microsoft
6 5 (9.80%) VMware
7 2 (3.92%) AppDynamics
7 2 (3.92%) Dynatrace
8 1 (1.96%) Cisco
8 1 (1.96%) Hortonworks
8 1 (1.96%) Intel
8 1 (1.96%) Mapbox
8 1 (1.96%) Netezza
8 1 (1.96%) Red Hat
8 1 (1.96%) Sybase
8 1 (1.96%) Teradata