The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Apache Solr skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Apache Solr over the 3 months to 23 June 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.

Apache Solr
London / City of London
3 months to
23 Jun 2017
Same period 2016 Same period 2015
Rank 151 162 197
Rank change year-on-year +11 +35  
Contract jobs citing Apache Solr 15 2 4
As % of all contract IT jobs advertised in the City of London 0.45% 0.059% 0.069%
As % of the Application Platforms category 2.92% 0.35% 0.40%
Number of daily rates quoted 14 1 3
Median daily rate £513 £463 £375
Median daily rate % change year-on-year +10.81% +23.33%  
90% offered a daily rate of more than £429 £463 £347
10% offered a daily rate of more than £650 £463 £555
UK excluding London median daily rate £401 £425 £438
% change year-on-year -5.76% -2.85%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

Apache Solr is in the application platform 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 application platform skills.

Contract Application Platform Skills
City of London
Contract job vacancies with a requirement for application platform skills 514 569 1004
As % of all contract IT job vacancies advertised in the City of London 15.58% 16.81% 17.28%
Number of daily rates quoted 379 439 755
Median daily rate £493 £438 £413
Median daily rate % change year-on-year +12.57% +6.06%  
90% offered a daily rate of more than £225 £300 £273
10% offered a daily rate of more than £650 £600 £575
UK excluding London median daily rate £400 £390 £350
% change year-on-year +2.69% +11.28%  
Number of hourly rates quoted 3 11 27
Median hourly rate £30.00 £18.25 £17.00
Median hourly rate % change year-on-year +64.38% +7.35%  
90% offered a hourly rate of more than £14.75 £12.50 £11.00
10% offered a hourly rate of more than £122.50 £23.20 £38.55
UK excluding London median hourly rate £25.00 £23.00 £21.00
% change year-on-year +8.69% +9.52%  

Apache Solr
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing Apache Solr as a proportion of all contract or permanent IT jobs with a match in the Application Platforms category.

Job vacancy trend for Apache Solr in the City of London

Apache Solr
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 Apache Solr in the City of London.

Contractor daily rate trend for Apache Solr in the City of London

Apache Solr
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Apache Solr in the City of London over the 3 months to 23 June 2017.

Contractor daily rate histogram for Apache Solr in the City of London

For the 6 months to 23 June 2017, IT contractor jobs citing Apache Solr 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 Apache Solr.

1 10 (52.63%) Java
2 8 (42.11%) Elasticsearch
2 8 (42.11%) DevOps
3 7 (36.84%) Big Data
4 6 (31.58%) HBase
4 6 (31.58%) Apache Hive
4 6 (31.58%) JavaScript
4 6 (31.58%) Agile Software Development
4 6 (31.58%) JSON
4 6 (31.58%) Git (software)
4 6 (31.58%) Hadoop
4 6 (31.58%) HDFS
5 5 (26.32%) TDD
5 5 (26.32%) SQL
5 5 (26.32%) Unix
5 5 (26.32%) Linux
5 5 (26.32%) HTML
5 5 (26.32%) Node.js
5 5 (26.32%) REST
5 5 (26.32%) MapReduce
5 5 (26.32%) Apache ZooKeeper
5 5 (26.32%) Kafka
5 5 (26.32%) Apache Spark
5 5 (26.32%) Jenkins
6 4 (21.05%) Express
6 4 (21.05%) Apache Pig
6 4 (21.05%) Responsive Web Design
6 4 (21.05%) Sass
6 4 (21.05%) RabbitMQ
6 4 (21.05%) Python

Apache Solr
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 8 (42.11%) Elasticsearch
2 5 (26.32%) Apache Spark
3 4 (21.05%) Apache Pig
4 3 (15.79%) WordPress
5 2 (10.53%) MS Exchange
5 2 (10.53%) SharePoint
6 1 (5.26%) Apache
6 1 (5.26%) Tomcat
Cloud Services
1 4 (21.05%) Amazon AWS
2 1 (5.26%) GitHub
2 1 (5.26%) PaaS
Communications & Networking
1 3 (15.79%) LDAP
2 2 (10.53%) Kerberos
2 2 (10.53%) SSL
3 1 (5.26%) HTTP
3 1 (5.26%) TCP/IP
Database & Business Intelligence
1 7 (36.84%) Big Data
2 6 (31.58%) Apache Hive
2 6 (31.58%) Hadoop
2 6 (31.58%) HBase
3 4 (21.05%) MySQL
4 3 (15.79%) Apache Cassandra
4 3 (15.79%) NoSQL
5 2 (10.53%) MongoDB
5 2 (10.53%) Sqoop
6 1 (5.26%) Apache Zeppelin
6 1 (5.26%) Impala
6 1 (5.26%) Neo4j
Development Applications
1 6 (31.58%) Git (software)
2 5 (26.32%) Jenkins
3 2 (10.53%) Grunt
3 2 (10.53%) gulp
3 2 (10.53%) Maven
3 2 (10.53%) Mocha
4 1 (5.26%) Bitbucket
4 1 (5.26%) Bower
4 1 (5.26%) Gradle
4 1 (5.26%) Jasmine
4 1 (5.26%) JUnit
4 1 (5.26%) Karma Test Runner
4 1 (5.26%) Sinon.JS
4 1 (5.26%) SonarQube
4 1 (5.26%) Spock
4 1 (5.26%) Talend Open Studio
4 1 (5.26%) Vagrant
General
1 3 (15.79%) Banking
1 3 (15.79%) Finance
2 1 (5.26%) Digital Economy
2 1 (5.26%) Investment Banking
2 1 (5.26%) Marketing
2 1 (5.26%) Publishing
2 1 (5.26%) Retail
Job Titles
1 10 (52.63%) Developer
2 4 (21.05%) Java Developer
2 4 (21.05%) Senior Developer
3 3 (15.79%) Senior Web Developer
3 3 (15.79%) Web Developer
4 2 (10.53%) Administrator
4 2 (10.53%) Architect
4 2 (10.53%) Big Data Developer
4 2 (10.53%) Big Data Engineer
4 2 (10.53%) Data Engineer
4 2 (10.53%) DevOps Engineer
4 2 (10.53%) E-Commerce Developer
4 2 (10.53%) Hadoop Administrator
4 2 (10.53%) Java E-Commerce Developer
4 2 (10.53%) Senior Architect
5 1 (5.26%) AWS Developer
5 1 (5.26%) Java Scala Developer
5 1 (5.26%) MongoDB Developer
5 1 (5.26%) Senior E-Commerce Developer
5 1 (5.26%) Solr Developer
Libraries, Frameworks & Software Standards
1 6 (31.58%) JSON
2 5 (26.32%) HTML
2 5 (26.32%) Kafka
2 5 (26.32%) Node.js
2 5 (26.32%) REST
3 4 (21.05%) CSS
3 4 (21.05%) Express
3 4 (21.05%) RabbitMQ
3 4 (21.05%) Sass
4 3 (15.79%) CSS3
4 3 (15.79%) HTML5
4 3 (15.79%) jQuery
4 3 (15.79%) LAMP
4 3 (15.79%) Spring
4 3 (15.79%) Twitter Bootstrap
5 2 (10.53%) Spring Boot
5 2 (10.53%) Web Services
6 1 (5.26%) Handlebars
6 1 (5.26%) Pug
6 1 (5.26%) React
Miscellaneous
1 3 (15.79%) Greenfield Project
2 1 (5.26%) Computer Science
2 1 (5.26%) Fintech
Operating Systems
1 5 (26.32%) Linux
1 5 (26.32%) Unix
2 2 (10.53%) Windows
3 1 (5.26%) CentOS
3 1 (5.26%) Fedora
3 1 (5.26%) Mac OS X
3 1 (5.26%) Red Hat Enterprise Linux
Processes & Methodologies
1 8 (42.11%) DevOps
2 6 (31.58%) Agile Software Development
3 5 (26.32%) MapReduce
3 5 (26.32%) TDD
4 4 (21.05%) Responsive Web Design
5 3 (15.79%) API Integration
5 3 (15.79%) Web Design
5 3 (15.79%) Web Development
6 2 (10.53%) Data Governance
6 2 (10.53%) E-Commerce
6 2 (10.53%) E-Discovery
6 2 (10.53%) Electronic Discovery Reference Model
6 2 (10.53%) Machine Learning
6 2 (10.53%) Microservices
6 2 (10.53%) Open Source
6 2 (10.53%) Workflow
7 1 (5.26%) BDD
7 1 (5.26%) Capacity Planning
7 1 (5.26%) Dependency Management
7 1 (5.26%) Performance Tuning
Programming Languages
1 10 (52.63%) Java
2 6 (31.58%) JavaScript
3 5 (26.32%) SQL
4 4 (21.05%) Python
5 3 (15.79%) PHP
6 2 (10.53%) Scala
7 1 (5.26%) ES6
7 1 (5.26%) R
7 1 (5.26%) SPARQL
Qualifications
1 1 (5.26%) Degree
1 1 (5.26%) SC Cleared
1 1 (5.26%) Security Cleared
Quality Assurance & Compliance
1 1 (5.26%) QA
System Software
1 6 (31.58%) HDFS
2 5 (26.32%) Apache ZooKeeper
3 3 (15.79%) Docker
4 2 (10.53%) Apache Flume
5 1 (5.26%) Active Directory
5 1 (5.26%) Varnish
Systems Management
1 3 (15.79%) Ansible
1 3 (15.79%) Puppet
2 2 (10.53%) Hadoop YARN
3 1 (5.26%) Ambari
3 1 (5.26%) Kibana
3 1 (5.26%) Mesos
3 1 (5.26%) Oozie
3 1 (5.26%) Terraform
Vendors
1 1 (5.26%) Alteryx
1 1 (5.26%) Cloudera
1 1 (5.26%) Hortonworks
1 1 (5.26%) Tableau
1 1 (5.26%) Talend
City, London
Haybrook IT Resourcing Ltd
Rate: Up to £500 per day
Posted: Yesterday
City, London
Oliver Bernard
Rate: £450 - £525 per day + Excellent Bonus & Benefits
Posted: 4 days ago