Period
to 20 February 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 20 February 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
20 Feb 2018
Same period 2017 Same period 2016
Rank 227 220 225
Rank change year-on-year -7 +5 +40
Contract jobs citing Apache Solr 25 13 3
As % of all contract IT jobs advertised in the City of London 0.35% 0.21% 0.045%
As % of the Application Platforms category 2.40% 1.15% 0.30%
Number of daily rates quoted 25 11 3
City of London median daily rate £425 £475 £388
Median daily rate % change year-on-year -10.53% +22.58% -6.06%
10th Percentile £310 £369 £366
90th Percentile £550 £625 £539
Central London median daily rate £425 £475 £525
% change year-on-year -10.53% -9.52% +27.27%
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 1,040 1,132 1,009
As % of all contract IT jobs advertised in the City of London 14.65% 18.49% 15.08%
Number of daily rates quoted 841 902 752
City of London median daily rate £500 £475 £438
Median daily rate % change year-on-year +5.26% +8.57% +9.38%
10th Percentile £278 £310 £263
90th Percentile £675 £675 £649
Central London median daily rate £496 £475 £425
% change year-on-year +4.42% +11.76% +6.25%
Number of hourly rates quoted 9 11 9
City of London median hourly rate £20.00 £19.00 £19.50
Median hourly rate % change year-on-year +5.26% -2.56% +11.43%
10th Percentile £11.54 £13.00 £14.75
90th Percentile £27.50 £56.87 £60.00
Central London median hourly rate £19.35 £19.00 £19.50
% change year-on-year +1.84% -2.56% +10.28%

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 20 February 2018.

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

For the 6 months to 20 February 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 (72.00%) Agile Software Development
2 17 (68.00%) OO
3 16 (64.00%) JavaScript
4 15 (60.00%) PHP
4 15 (60.00%) HTML
4 15 (60.00%) CSS
4 15 (60.00%) Drupal
4 15 (60.00%) jQuery
4 15 (60.00%) Git (software)
4 15 (60.00%) HTML5
4 15 (60.00%) CSS3
5 13 (52.00%) Ajax
6 12 (48.00%) CMS
6 12 (48.00%) Jenkins
6 12 (48.00%) OO PHP
7 11 (44.00%) Workflow
7 11 (44.00%) Finance
7 11 (44.00%) JIRA
8 10 (40.00%) QA
8 10 (40.00%) Disaster Recovery
8 10 (40.00%) E-Commerce
9 8 (32.00%) CRM
10 7 (28.00%) Apache Spark
11 6 (24.00%) Java
12 5 (20.00%) Linux
12 5 (20.00%) Python
13 4 (16.00%) MySQL
13 4 (16.00%) Oracle
13 4 (16.00%) Banking
13 4 (16.00%) Elasticsearch

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 15 (60.00%) Drupal
2 12 (48.00%) CMS
3 7 (28.00%) Apache Spark
4 4 (16.00%) Elasticsearch
5 3 (12.00%) SharePoint
6 1 (4.00%) Confluence
6 1 (4.00%) JBoss
Cloud Services
1 2 (8.00%) Amazon AWS
2 1 (4.00%) Amazon SQS
2 1 (4.00%) AWS CloudFormation
2 1 (4.00%) Heroku
Communications & Networking
1 3 (12.00%) Kerberos
1 3 (12.00%) SSL
Database & Business Intelligence
1 4 (16.00%) Apache Cassandra
1 4 (16.00%) Apache Hive
1 4 (16.00%) Hadoop
1 4 (16.00%) HBase
1 4 (16.00%) MySQL
1 4 (16.00%) Relational Database
2 3 (12.00%) Big Data
3 2 (8.00%) MongoDB
3 2 (8.00%) ObjectStore
3 2 (8.00%) Oracle Database
3 2 (8.00%) SQL Server
4 1 (4.00%) Data Warehouse
4 1 (4.00%) DB2
4 1 (4.00%) NoSQL
4 1 (4.00%) PostgreSQL
4 1 (4.00%) Redis
Development Applications
1 15 (60.00%) Git (software)
2 12 (48.00%) Jenkins
3 11 (44.00%) JIRA
4 3 (12.00%) Vagrant
5 2 (8.00%) TeamCity
6 1 (4.00%) JMeter
6 1 (4.00%) JUnit
6 1 (4.00%) Maven
6 1 (4.00%) RSpec
General
1 11 (44.00%) Finance
2 4 (16.00%) Banking
3 3 (12.00%) Marketing
3 3 (12.00%) Publishing
4 1 (4.00%) Retail Banking
Job Titles
1 18 (72.00%) Developer
2 12 (48.00%) PHP Developer
3 11 (44.00%) Drupal Developer
4 8 (32.00%) PHP Drupal Developer
5 4 (16.00%) Data Engineer
6 3 (12.00%) Consultant
7 2 (8.00%) Principal Consultant
7 2 (8.00%) Senior Data Engineer
7 2 (8.00%) Senior Developer
8 1 (4.00%) Agile Developer
8 1 (4.00%) AWS Engineer
8 1 (4.00%) Database Developer
8 1 (4.00%) Database Engineer
8 1 (4.00%) Linux Engineer
8 1 (4.00%) Ruby Developer
8 1 (4.00%) Senior PHP Developer
8 1 (4.00%) Software Developer
8 1 (4.00%) Solr Developer
Libraries, Frameworks & Software Standards
1 15 (60.00%) CSS
1 15 (60.00%) CSS3
1 15 (60.00%) HTML
1 15 (60.00%) HTML5
1 15 (60.00%) jQuery
2 13 (52.00%) Ajax
3 4 (16.00%) Kafka
4 3 (12.00%) Sass
4 3 (12.00%) Twitter Bootstrap
5 2 (8.00%) JSON
5 2 (8.00%) Node.js
5 2 (8.00%) Web Services
5 2 (8.00%) XML
6 1 (4.00%) Elastic Stack
6 1 (4.00%) REST
6 1 (4.00%) RESTful
6 1 (4.00%) Spring
6 1 (4.00%) Spring MVC
Miscellaneous
1 3 (12.00%) Data Structures
2 1 (4.00%) Analytical Skills
2 1 (4.00%) Computer Science
2 1 (4.00%) Data Centre
2 1 (4.00%) Greenfield Project
2 1 (4.00%) Wiki
Operating Systems
1 5 (20.00%) Linux
2 3 (12.00%) Red Hat Enterprise Linux
3 2 (8.00%) Unix
4 1 (4.00%) CentOS
4 1 (4.00%) Fedora
Processes & Methodologies
1 18 (72.00%) Agile Software Development
2 17 (68.00%) OO
3 12 (48.00%) OO PHP
4 11 (44.00%) Workflow
5 10 (40.00%) Disaster Recovery
5 10 (40.00%) E-Commerce
6 8 (32.00%) CRM
7 3 (12.00%) Analytics
7 3 (12.00%) Capacity Management
7 3 (12.00%) Change Management
7 3 (12.00%) Data Engineering
7 3 (12.00%) Data Transformation
7 3 (12.00%) ETL
7 3 (12.00%) OOP
7 3 (12.00%) Workload Management
8 2 (8.00%) Actionable Insight
8 2 (8.00%) Customer Acquisition
8 2 (8.00%) Data Ingestion
8 2 (8.00%) Data Science
8 2 (8.00%) Regulatory Compliance
Programming Languages
1 16 (64.00%) JavaScript
2 15 (60.00%) PHP
3 6 (24.00%) Java
4 5 (20.00%) Python
5 3 (12.00%) C#
5 3 (12.00%) PowerShell
6 2 (8.00%) Bash Shell
6 2 (8.00%) Ruby
6 2 (8.00%) SQL
7 1 (4.00%) Go
7 1 (4.00%) Scala
Qualifications
1 2 (8.00%) Degree
1 2 (8.00%) Master's Degree
2 1 (4.00%) Computer Science Degree
Quality Assurance & Compliance
1 10 (40.00%) QA
System Software
1 3 (12.00%) Active Directory
1 3 (12.00%) Apache Flume
1 3 (12.00%) Apache ZooKeeper
1 3 (12.00%) HDFS
Systems Management
1 3 (12.00%) Ambari
1 3 (12.00%) Apache Slider
1 3 (12.00%) Hadoop YARN
1 3 (12.00%) Oozie
2 1 (4.00%) Ansible
2 1 (4.00%) Kibana
2 1 (4.00%) logstash
2 1 (4.00%) Opscode Chef
2 1 (4.00%) Puppet
2 1 (4.00%) Terraform
Vendors
1 4 (16.00%) Hortonworks
1 4 (16.00%) Oracle
2 3 (12.00%) Hitachi
3 1 (4.00%) Netezza
3 1 (4.00%) Sybase