Period
to 21 July 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 21 July 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
21 Jul 2018
Same period 2017 Same period 2016
Rank 234 217 239
Rank change year-on-year -17 +22 +41
Contract jobs citing Apache Solr 26 24 7
As % of all contract IT jobs advertised in the City of London 0.37% 0.37% 0.10%
As % of the Application Platforms category 2.21% 2.23% 0.61%
Number of daily rates quoted 23 22 5
City of London median daily rate £513 £513 £463
Median daily rate % change year-on-year - +10.81% +23.33%
10th Percentile £400 £322 £425
90th Percentile £648 £675 £545
Central London median daily rate £513 £513 £463
% change year-on-year - +10.81% +23.33%
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 1,174 1,078 1,139
As % of all contract IT jobs advertised in the City of London 16.53% 16.58% 16.66%
Number of daily rates quoted 894 796 862
City of London median daily rate £500 £489 £450
Median daily rate % change year-on-year +2.30% +8.61% +5.88%
10th Percentile £288 £263 £289
90th Percentile £675 £675 £638
Central London median daily rate £500 £475 £450
% change year-on-year +5.26% +5.56% +5.88%
Number of hourly rates quoted 27 6 17
City of London median hourly rate £20.00 £26.17 £19.00
Median hourly rate % change year-on-year -23.57% +37.72% +8.57%
10th Percentile £12.95 £14.44 £11.25
90th Percentile £33.30 £83.13 £26.00
Central London median hourly rate £20.00 £19.00 £19.00
% change year-on-year +5.26% - +8.57%

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 21 July 2018.

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

For the 6 months to 21 July 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 18 (69.23%) Apache Spark
2 15 (57.69%) Java
3 14 (53.85%) Hadoop
3 14 (53.85%) HBase
4 12 (46.15%) Kafka
4 12 (46.15%) HDFS
5 11 (42.31%) Apache ZooKeeper
5 11 (42.31%) Apache Hive
6 10 (38.46%) Apache Cassandra
6 10 (38.46%) Big Data
6 10 (38.46%) Oozie
6 10 (38.46%) Python
6 10 (38.46%) Kerberos
7 9 (34.62%) Linux
7 9 (34.62%) Hadoop YARN
8 8 (30.77%) OO
8 8 (30.77%) JavaScript
8 8 (30.77%) Apache Flume
9 7 (26.92%) Hortonworks
9 7 (26.92%) Ambari
9 7 (26.92%) SSL
9 7 (26.92%) Active Directory
9 7 (26.92%) Finance
9 7 (26.92%) Apache Slider
10 6 (23.08%) Change Management
10 6 (23.08%) Agile Software Development
10 6 (23.08%) HTML
10 6 (23.08%) Capacity Management
10 6 (23.08%) Red Hat Enterprise Linux
11 5 (19.23%) Git (software)

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 18 (69.23%) Apache Spark
2 4 (15.38%) Elasticsearch
3 3 (11.54%) CMS
3 3 (11.54%) Drupal
3 3 (11.54%) SharePoint
4 1 (3.85%) Alfresco
4 1 (3.85%) Apache Pig
4 1 (3.85%) Tomcat
Cloud Services
1 2 (7.69%) Amazon AWS
1 2 (7.69%) Amazon EMR
1 2 (7.69%) Amazon S3
2 1 (3.85%) Cloud Computing
2 1 (3.85%) Yarn
Communications & Networking
1 10 (38.46%) Kerberos
2 7 (26.92%) SSL
3 1 (3.85%) HTTP
Database & Business Intelligence
1 14 (53.85%) Hadoop
1 14 (53.85%) HBase
2 11 (42.31%) Apache Hive
3 10 (38.46%) Apache Cassandra
3 10 (38.46%) Big Data
4 5 (19.23%) NoSQL
4 5 (19.23%) Relational Database
5 3 (11.54%) MySQL
5 3 (11.54%) SQL Server
6 2 (7.69%) Data Warehouse
6 2 (7.69%) Impala
6 2 (7.69%) ObjectStore
6 2 (7.69%) Oracle Database
6 2 (7.69%) PostgreSQL
6 2 (7.69%) Riak
6 2 (7.69%) Sqoop
7 1 (3.85%) Cloudera CDH
7 1 (3.85%) Enterprise Data Warehouse
7 1 (3.85%) Parquet
7 1 (3.85%) SQL Server 2014
Development Applications
1 5 (19.23%) Git (software)
2 4 (15.38%) Jenkins
3 2 (7.69%) JIRA
3 2 (7.69%) Maven
4 1 (3.85%) GitLab
4 1 (3.85%) Jasmine
4 1 (3.85%) Karma Test Runner
4 1 (3.85%) Subversion
4 1 (3.85%) webpack
General
1 7 (26.92%) Finance
2 3 (11.54%) Banking
2 3 (11.54%) Legal
3 2 (7.69%) Prime Brokerage
4 1 (3.85%) Publishing
Job Titles
1 16 (61.54%) Developer
2 7 (26.92%) Consultant
3 6 (23.08%) Principal Consultant
4 5 (19.23%) Big Data Developer
4 5 (19.23%) Java Developer
5 4 (15.38%) Data Engineer
5 4 (15.38%) Hadoop Consultant
6 3 (11.54%) PHP Developer
7 2 (7.69%) Drupal Developer
7 2 (7.69%) Hybris Developer
7 2 (7.69%) PHP Drupal Developer
8 1 (3.85%) Angular Developer
8 1 (3.85%) C Developer
8 1 (3.85%) C++/Java Developer
8 1 (3.85%) Data Analytics Engineer
8 1 (3.85%) Database Engineer
8 1 (3.85%) Python Developer
8 1 (3.85%) Senior Data Engineer
8 1 (3.85%) Senior PHP Developer
8 1 (3.85%) Solr Developer
Libraries, Frameworks & Software Standards
1 12 (46.15%) Kafka
2 6 (23.08%) HTML
3 5 (19.23%) CSS
3 5 (19.23%) jQuery
4 4 (15.38%) Ajax
4 4 (15.38%) HTML5
4 4 (15.38%) Spring
5 3 (11.54%) CSS3
5 3 (11.54%) React
6 2 (7.69%) AngularJS
6 2 (7.69%) Hibernate
6 2 (7.69%) J2EE
6 2 (7.69%) JSON
6 2 (7.69%) JSP
6 2 (7.69%) REST
7 1 (3.85%) JDBC
7 1 (3.85%) JMS
7 1 (3.85%) Lucene
7 1 (3.85%) Web Services
7 1 (3.85%) XML
Miscellaneous
1 3 (11.54%) Analytical Skills
1 3 (11.54%) Data Structures
2 2 (7.69%) Data Centre
2 2 (7.69%) Derivative
2 2 (7.69%) Enterprise Software
2 2 (7.69%) Fixed Income
2 2 (7.69%) OTC Derivatives
3 1 (3.85%) Anti-Piracy
3 1 (3.85%) Clustering
3 1 (3.85%) Fintech
3 1 (3.85%) Foreign Exchange (FX)
3 1 (3.85%) IPTV
3 1 (3.85%) Linux Command Line
Operating Systems
1 9 (34.62%) Linux
2 6 (23.08%) Red Hat Enterprise Linux
3 1 (3.85%) Ubuntu
3 1 (3.85%) Unix
Processes & Methodologies
1 8 (30.77%) OO
2 6 (23.08%) Agile Software Development
2 6 (23.08%) Capacity Management
2 6 (23.08%) Change Management
3 5 (19.23%) Business Intelligence
3 5 (19.23%) E-Commerce
4 4 (15.38%) Data Transformation
4 4 (15.38%) DevOps
4 4 (15.38%) ETL
4 4 (15.38%) MapReduce
4 4 (15.38%) Problem-Solving
5 3 (11.54%) Analytics
5 3 (11.54%) Data Ingestion
5 3 (11.54%) OO PHP
5 3 (11.54%) Open Source
5 3 (11.54%) Workload Management
6 2 (7.69%) B2C
6 2 (7.69%) Low Latency
6 2 (7.69%) Portfolio Management
6 2 (7.69%) Unit Testing
Programming Languages
1 15 (57.69%) Java
2 10 (38.46%) Python
3 8 (30.77%) JavaScript
4 4 (15.38%) C#
4 4 (15.38%) PHP
4 4 (15.38%) SQL
5 3 (11.54%) PowerShell
5 3 (11.54%) Scala
5 3 (11.54%) TypeScript
6 2 (7.69%) C
6 2 (7.69%) C++
6 2 (7.69%) Java 8
7 1 (3.85%) ES6
Qualifications
1 1 (3.85%) Degree
Quality Assurance & Compliance
1 3 (11.54%) QA
System Software
1 12 (46.15%) HDFS
2 11 (42.31%) Apache ZooKeeper
3 8 (30.77%) Apache Flume
4 7 (26.92%) Active Directory
Systems Management
1 10 (38.46%) Oozie
2 9 (34.62%) Hadoop YARN
3 7 (26.92%) Ambari
3 7 (26.92%) Apache Slider
4 1 (3.85%) Ansible
Vendors
1 7 (26.92%) Hortonworks
2 3 (11.54%) Hitachi
2 3 (11.54%) Oracle
2 3 (11.54%) Tableau
3 2 (7.69%) hybris
3 2 (7.69%) Sybase
4 1 (3.85%) Cloudera
4 1 (3.85%) FXall
4 1 (3.85%) Microsoft
4 1 (3.85%) Reuters
4 1 (3.85%) Salesforce.com
4 1 (3.85%) Talend