Period
to 23 May 2018

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 6 months to 23 May 2018 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
Central London > City of London
6 months to
23 May 2018
Same period 2017 Same period 2016
Rank 225 224 228
Rank change year-on-year -1 +4 +41
Contract jobs citing Apache Solr 27 14 3
As % of all contract IT jobs advertised in the City of London 0.39% 0.23% 0.046%
As % of the Application Platforms category 2.40% 1.30% 0.29%
Number of daily rates quoted 24 12 2
City of London median daily rate £500 £463 £444
Median daily rate % change year-on-year +8.11% +4.23% +18.33%
10th Percentile £400 £319 £416
90th Percentile £638 £625 £477
Central London median daily rate £500 £450 £444
% change year-on-year +11.11% +1.41% +18.33%
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

Apache Solr is in the Application Platforms category. The following 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.

All Application Platform Skills
City of London
Contract vacancies with a requirement for application platform skills 1,126 1,075 1,017
As % of all contract IT jobs advertised in the City of London 16.25% 17.50% 15.76%
Number of daily rates quoted 885 823 758
City of London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +8.43%
10th Percentile £303 £269 £287
90th Percentile £641 £638 £641
Central London median daily rate £500 £475 £438
% change year-on-year +5.26% +8.57% +4.79%
Number of hourly rates quoted 17 5 17
City of London median hourly rate £20.00 £30.00 £19.00
Median hourly rate % change year-on-year -33.33% +57.89% +8.57%
10th Percentile £12.50 £16.39 £11.25
90th Percentile £33.30 £92.25 £40.35
Central London median hourly rate £20.00 £26.17 £19.00
% change year-on-year -23.57% +37.72% +6.65%

Apache Solr
Job Vacancy Trend in the City of London

Job postings citing Apache Solr as a percentage of all IT jobs advertised in the City of London.

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 6 months to 23 May 2018.

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

For the 6 months to 23 May 2018, IT contractor jobs citing Apache Solr also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the City of London region with a requirement for Apache Solr.

1 16 (59.26%) Apache Spark
2 15 (55.56%) Java
3 14 (51.85%) Hadoop
4 12 (44.44%) HBase
4 12 (44.44%) Kafka
5 11 (40.74%) Apache Hive
5 11 (40.74%) HDFS
6 10 (37.04%) Apache ZooKeeper
6 10 (37.04%) Big Data
6 10 (37.04%) JavaScript
7 9 (33.33%) Linux
7 9 (33.33%) OO
7 9 (33.33%) Python
7 9 (33.33%) Kerberos
7 9 (33.33%) Oozie
8 8 (29.63%) Finance
8 8 (29.63%) Hadoop YARN
9 7 (25.93%) Agile Software Development
9 7 (25.93%) Hortonworks
9 7 (25.93%) Apache Flume
9 7 (25.93%) Apache Cassandra
10 6 (22.22%) Ambari
10 6 (22.22%) Git (software)
10 6 (22.22%) jQuery
10 6 (22.22%) SSL
10 6 (22.22%) Active Directory
10 6 (22.22%) E-Commerce
10 6 (22.22%) HTML
10 6 (22.22%) SQL
10 6 (22.22%) Apache Slider

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 16 (59.26%) Apache Spark
2 4 (14.81%) CMS
2 4 (14.81%) Drupal
3 3 (11.11%) SharePoint
4 2 (7.41%) Elasticsearch
5 1 (3.70%) Alfresco
5 1 (3.70%) Apache Pig
5 1 (3.70%) Confluence
5 1 (3.70%) JBoss
5 1 (3.70%) Tomcat
Cloud Services
1 3 (11.11%) Amazon AWS
2 2 (7.41%) Amazon EMR
2 2 (7.41%) Amazon S3
3 1 (3.70%) Cloud Computing
3 1 (3.70%) Heroku
3 1 (3.70%) Yarn
Communications & Networking
1 9 (33.33%) Kerberos
2 6 (22.22%) SSL
3 1 (3.70%) HTTP
Database & Business Intelligence
1 14 (51.85%) Hadoop
2 12 (44.44%) HBase
3 11 (40.74%) Apache Hive
4 10 (37.04%) Big Data
5 7 (25.93%) Apache Cassandra
6 4 (14.81%) NoSQL
6 4 (14.81%) Relational Database
7 3 (11.11%) Data Warehouse
7 3 (11.11%) PostgreSQL
7 3 (11.11%) SQL Server
8 2 (7.41%) Impala
8 2 (7.41%) MySQL
8 2 (7.41%) ObjectStore
8 2 (7.41%) Oracle Database
8 2 (7.41%) Sqoop
9 1 (3.70%) Apache Zeppelin
9 1 (3.70%) Cloudera CDH
9 1 (3.70%) Enterprise Data Warehouse
9 1 (3.70%) Parquet
9 1 (3.70%) SQL Server 2014
Development Applications
1 6 (22.22%) Git (software)
2 4 (14.81%) Jenkins
3 3 (11.11%) JIRA
4 2 (7.41%) Maven
5 1 (3.70%) GitLab
5 1 (3.70%) JUnit
5 1 (3.70%) Subversion
5 1 (3.70%) TeamCity
General
1 8 (29.63%) Finance
2 5 (18.52%) Banking
3 3 (11.11%) Legal
4 1 (3.70%) Publishing
4 1 (3.70%) Retail Banking
Job Titles
1 17 (62.96%) Developer
2 6 (22.22%) Consultant
3 5 (18.52%) Big Data Developer
3 5 (18.52%) Data Engineer
3 5 (18.52%) Principal Consultant
4 4 (14.81%) Java Developer
4 4 (14.81%) PHP Developer
5 3 (11.11%) Drupal Developer
5 3 (11.11%) PHP Drupal Developer
6 2 (7.41%) Hadoop Consultant
6 2 (7.41%) Hybris Developer
6 2 (7.41%) Senior Data Engineer
6 2 (7.41%) Senior Developer
6 2 (7.41%) Solr Developer
7 1 (3.70%) Agile Developer
7 1 (3.70%) Data Analytics Engineer
7 1 (3.70%) Database Developer
7 1 (3.70%) Database Engineer
7 1 (3.70%) Senior PHP Developer
7 1 (3.70%) Software Developer
Libraries, Frameworks & Software Standards
1 12 (44.44%) Kafka
2 6 (22.22%) HTML
2 6 (22.22%) jQuery
3 5 (18.52%) Ajax
3 5 (18.52%) CSS
3 5 (18.52%) HTML5
3 5 (18.52%) Spring
4 4 (14.81%) CSS3
4 4 (14.81%) JSON
5 3 (11.11%) REST
5 3 (11.11%) XML
6 2 (7.41%) Hibernate
6 2 (7.41%) J2EE
6 2 (7.41%) JSP
6 2 (7.41%) Web Services
7 1 (3.70%) JDBC
7 1 (3.70%) JMS
7 1 (3.70%) Node.js
7 1 (3.70%) RabbitMQ
7 1 (3.70%) RESTful
Miscellaneous
1 3 (11.11%) Data Structures
2 2 (7.41%) Analytical Skills
2 2 (7.41%) Data Centre
3 1 (3.70%) Anti-Piracy
3 1 (3.70%) Clustering
3 1 (3.70%) Computer Science
3 1 (3.70%) Foreign Exchange (FX)
3 1 (3.70%) Greenfield Project
3 1 (3.70%) IPTV
3 1 (3.70%) Linux Command Line
3 1 (3.70%) Wiki
Operating Systems
1 9 (33.33%) Linux
2 5 (18.52%) Red Hat Enterprise Linux
3 3 (11.11%) Unix
4 1 (3.70%) Ubuntu
Processes & Methodologies
1 9 (33.33%) OO
2 7 (25.93%) Agile Software Development
3 6 (22.22%) E-Commerce
4 5 (18.52%) Business Intelligence
4 5 (18.52%) Capacity Management
4 5 (18.52%) Change Management
4 5 (18.52%) ETL
5 4 (14.81%) Analytics
5 4 (14.81%) Data Transformation
5 4 (14.81%) DevOps
5 4 (14.81%) MapReduce
5 4 (14.81%) OO PHP
6 3 (11.11%) Data Engineering
6 3 (11.11%) Data Ingestion
6 3 (11.11%) Disaster Recovery
6 3 (11.11%) Problem-Solving
6 3 (11.11%) Workflow
6 3 (11.11%) Workload Management
7 2 (7.41%) B2C
7 2 (7.41%) Scrum
Programming Languages
1 15 (55.56%) Java
2 10 (37.04%) JavaScript
3 9 (33.33%) Python
4 6 (22.22%) SQL
5 5 (18.52%) PHP
6 4 (14.81%) C#
6 4 (14.81%) Scala
7 3 (11.11%) PowerShell
8 2 (7.41%) Java 8
9 1 (3.70%) Bash Shell
9 1 (3.70%) ES6
9 1 (3.70%) Go
9 1 (3.70%) Ruby
9 1 (3.70%) TypeScript
Qualifications
1 2 (7.41%) Degree
1 2 (7.41%) Master's Degree
2 1 (3.70%) Computer Science Degree
Quality Assurance & Compliance
1 4 (14.81%) QA
System Software
1 11 (40.74%) HDFS
2 10 (37.04%) Apache ZooKeeper
3 7 (25.93%) Apache Flume
4 6 (22.22%) Active Directory
Systems Management
1 9 (33.33%) Oozie
2 8 (29.63%) Hadoop YARN
3 6 (22.22%) Ambari
3 6 (22.22%) Apache Slider
4 1 (3.70%) Ansible
Vendors
1 7 (25.93%) Hortonworks
2 5 (18.52%) Oracle
3 3 (11.11%) Hitachi
3 3 (11.11%) Tableau
4 2 (7.41%) hybris
5 1 (3.70%) Cloudera
5 1 (3.70%) FXall
5 1 (3.70%) Microsoft
5 1 (3.70%) Netezza
5 1 (3.70%) Reuters
5 1 (3.70%) Salesforce.com
5 1 (3.70%) Sybase
5 1 (3.70%) Talend