Period
to 23 September 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 September 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 Sep 2018
Same period 2017 Same period 2016
Rank 236 213 247
Rank change year-on-year -23 +34 +35
Contract jobs citing Apache Solr 16 28 7
As % of all contract IT jobs advertised in the City of London 0.23% 0.42% 0.10%
As % of the Application Platforms category 1.35% 2.79% 0.60%
Number of daily rates quoted 14 26 6
City of London median daily rate £525 £494 £493
Median daily rate % change year-on-year +6.33% +0.25% +31.33%
10th Percentile £500 £310 £447
90th Percentile £734 £675 £544
Central London median daily rate £521 £494 £493
% change year-on-year +5.57% +0.25% +31.33%
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 1,185 1,003 1,171
As % of all contract IT jobs advertised in the City of London 17.25% 14.89% 17.31%
Number of daily rates quoted 899 754 906
City of London median daily rate £510 £499 £450
Median daily rate % change year-on-year +2.26% +10.83% +5.88%
10th Percentile £280 £269 £288
90th Percentile £675 £675 £638
Central London median daily rate £500 £498 £450
% change year-on-year +0.50% +10.56% +5.88%
Number of hourly rates quoted 36 8 16
City of London median hourly rate £20.63 £17.00 £18.25
Median hourly rate % change year-on-year +21.32% -6.85% +7.35%
10th Percentile £13.00 £12.01 £11.25
90th Percentile £33.38 £59.63 £41.13
Central London median hourly rate £20.00 £17.85 £17.50
% change year-on-year +12.04% +2.00% +2.94%

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 September 2018.

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

For the 6 months to 23 September 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 10 (62.50%) Java
1 10 (62.50%) Apache Cassandra
1 10 (62.50%) HBase
1 10 (62.50%) Apache Spark
2 9 (56.25%) Kafka
2 9 (56.25%) Hadoop
3 7 (43.75%) Apache ZooKeeper
3 7 (43.75%) Apache Hive
3 7 (43.75%) HDFS
4 6 (37.50%) Hadoop YARN
4 6 (37.50%) Oozie
4 6 (37.50%) Apache Flume
4 6 (37.50%) Kerberos
4 6 (37.50%) Python
4 6 (37.50%) Linux
5 5 (31.25%) SSL
5 5 (31.25%) Active Directory
5 5 (31.25%) Open Source
5 5 (31.25%) Hortonworks
5 5 (31.25%) Ambari
5 5 (31.25%) Apache Slider
6 4 (25.00%) Elasticsearch
6 4 (25.00%) Jenkins
6 4 (25.00%) Relational Database
6 4 (25.00%) Capacity Management
6 4 (25.00%) Big Data
6 4 (25.00%) Agile Software Development
6 4 (25.00%) Red Hat Enterprise Linux
6 4 (25.00%) Change Management
7 3 (18.75%) Unix

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 10 (62.50%) Apache Spark
2 4 (25.00%) Elasticsearch
3 1 (6.25%) Alfresco
3 1 (6.25%) Apache Pig
3 1 (6.25%) CMS
3 1 (6.25%) Sitecore CMS
Business Applications
1 1 (6.25%) SAP CRM
Cloud Services
1 1 (6.25%) Amazon AWS
1 1 (6.25%) Amazon EMR
1 1 (6.25%) Amazon S3
1 1 (6.25%) Cloud Computing
1 1 (6.25%) IaaS
1 1 (6.25%) Microsoft Azure
1 1 (6.25%) PaaS
Communications & Networking
1 6 (37.50%) Kerberos
2 5 (31.25%) SSL
Database & Business Intelligence
1 10 (62.50%) Apache Cassandra
1 10 (62.50%) HBase
2 9 (56.25%) Hadoop
3 7 (43.75%) Apache Hive
4 4 (25.00%) Big Data
4 4 (25.00%) Relational Database
5 3 (18.75%) MongoDB
5 3 (18.75%) MySQL
5 3 (18.75%) NoSQL
6 2 (12.50%) Riak
7 1 (6.25%) Data Warehouse
7 1 (6.25%) PostgreSQL
7 1 (6.25%) SQL Server
7 1 (6.25%) Sqoop
Development Applications
1 4 (25.00%) Jenkins
2 2 (12.50%) Gatling
2 2 (12.50%) Git (software)
2 2 (12.50%) JMeter
2 2 (12.50%) LoadRunner
2 2 (12.50%) NeoLoad
3 1 (6.25%) Jasmine
3 1 (6.25%) Karma Test Runner
3 1 (6.25%) Maven
3 1 (6.25%) webpack
General
1 3 (18.75%) Finance
2 2 (12.50%) Prime Brokerage
3 1 (6.25%) Banking
3 1 (6.25%) Legal
Job Titles
1 9 (56.25%) Developer
2 5 (31.25%) Consultant
3 4 (25.00%) Principal Consultant
4 3 (18.75%) Big Data Developer
4 3 (18.75%) Hadoop Consultant
4 3 (18.75%) Java Developer
5 1 (6.25%) Angular Developer
5 1 (6.25%) Architect
5 1 (6.25%) C Developer
5 1 (6.25%) C/C++ Developer
5 1 (6.25%) C++ Developer
5 1 (6.25%) C++/Java Developer
5 1 (6.25%) E-Commerce Architect
5 1 (6.25%) E-Commerce Developer
5 1 (6.25%) Hybris Developer
5 1 (6.25%) Python Developer
5 1 (6.25%) Sitecore Architect
5 1 (6.25%) Sitecore Developer
Libraries, Frameworks & Software Standards
1 9 (56.25%) Kafka
2 2 (12.50%) AngularJS
2 2 (12.50%) CSS
2 2 (12.50%) HTML
2 2 (12.50%) React
2 2 (12.50%) RESTful
3 1 (6.25%) .NET
3 1 (6.25%) ASP.NET
3 1 (6.25%) D3.js
3 1 (6.25%) J2EE
3 1 (6.25%) JDBC
3 1 (6.25%) JMS
3 1 (6.25%) jQuery
3 1 (6.25%) JSP
3 1 (6.25%) Node.js
3 1 (6.25%) RabbitMQ
3 1 (6.25%) REST
3 1 (6.25%) Spring
Miscellaneous
1 3 (18.75%) Analytical Skills
1 3 (18.75%) Enterprise Software
1 3 (18.75%) Linux Command Line
2 2 (12.50%) Data Centre
2 2 (12.50%) Derivative
2 2 (12.50%) Fixed Income
2 2 (12.50%) OTC Derivatives
3 1 (6.25%) Anti-Piracy
3 1 (6.25%) Fintech
3 1 (6.25%) IPTV
Operating Systems
1 6 (37.50%) Linux
2 4 (25.00%) Red Hat Enterprise Linux
3 3 (18.75%) Unix
4 1 (6.25%) Ubuntu
Processes & Methodologies
1 5 (31.25%) Open Source
2 4 (25.00%) Agile Software Development
2 4 (25.00%) Capacity Management
2 4 (25.00%) Change Management
3 3 (18.75%) Continuous Delivery
3 3 (18.75%) MapReduce
3 3 (18.75%) Migration
3 3 (18.75%) Problem-Solving
4 2 (12.50%) API Design
4 2 (12.50%) DevOps
4 2 (12.50%) Enterprise Search
4 2 (12.50%) Load Testing
4 2 (12.50%) Low Latency
4 2 (12.50%) Microservices
4 2 (12.50%) Performance Measurement
4 2 (12.50%) Performance Testing
4 2 (12.50%) Performance Tuning
4 2 (12.50%) Risk Assessment
4 2 (12.50%) SDLC
4 2 (12.50%) Test Automation
Programming Languages
1 10 (62.50%) Java
2 6 (37.50%) Python
3 3 (18.75%) Scala
4 2 (12.50%) C
4 2 (12.50%) C++
4 2 (12.50%) JavaScript
4 2 (12.50%) Ruby
4 2 (12.50%) TypeScript
5 1 (6.25%) C#
5 1 (6.25%) Java 8
5 1 (6.25%) PHP
5 1 (6.25%) SQL
Qualifications
1 1 (6.25%) Degree
Quality Assurance & Compliance
1 1 (6.25%) QA
System Software
1 7 (43.75%) Apache ZooKeeper
1 7 (43.75%) HDFS
2 6 (37.50%) Apache Flume
3 5 (31.25%) Active Directory
4 2 (12.50%) Docker
Systems Management
1 6 (37.50%) Hadoop YARN
1 6 (37.50%) Oozie
2 5 (31.25%) Ambari
2 5 (31.25%) Apache Slider
3 2 (12.50%) Kubernetes
3 2 (12.50%) Prometheus
4 1 (6.25%) Ansible
Vendors
1 5 (31.25%) Hortonworks
2 2 (12.50%) AppDynamics
2 2 (12.50%) Microsoft
2 2 (12.50%) SOASTA, Inc
2 2 (12.50%) Sybase
3 1 (6.25%) hybris
3 1 (6.25%) Oracle
3 1 (6.25%) SAP
3 1 (6.25%) Sitecore
3 1 (6.25%) Tableau