The following table provides summary statistics for contract job vacancies advertised in 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 26 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
England / London
3 months to
26 Jun 2017
Same period 2016 Same period 2015
Rank 327 367 403
Rank change year-on-year +40 +36  
Contract jobs citing Apache Solr 98 51 39
As % of all contract IT jobs advertised in London 0.47% 0.24% 0.17%
As % of the Application Platforms category 2.77% 1.28% 0.89%
Number of daily rates quoted 75 38 23
Median daily rate £475 £475 £425
Median daily rate % change year-on-year - +11.76%  
90% offered a daily rate of more than £375 £375 £369
10% offered a daily rate of more than £625 £600 £583
UK excluding London median daily rate £401 £425 £400
% change year-on-year -5.76% +6.25%  
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 London with a requirement for application platform skills.

Contract Application Platform Skills
London
Contract job vacancies with a requirement for application platform skills 3538 3979 4359
As % of all contract IT job vacancies advertised in London 17.04% 18.61% 18.67%
Number of daily rates quoted 2484 2873 2915
Median daily rate £475 £450 £400
Median daily rate % change year-on-year +5.55% +12.50%  
90% offered a daily rate of more than £300 £295 £250
10% offered a daily rate of more than £600 £600 £550
UK excluding London median daily rate £400 £390 £350
% change year-on-year +2.56% +11.42%  
Number of hourly rates quoted 37 43 100
Median hourly rate £22.00 £17.50 £19.75
Median hourly rate % change year-on-year +25.71% -11.39%  
90% offered a hourly rate of more than £12.45 £12.50 £12.35
10% offered a hourly rate of more than £50.25 £34.54 £37.90
UK excluding London median hourly rate £26.25 £25.00 £21.00
% change year-on-year +5.00% +19.04%  

Apache Solr
Job Vacancy Trend in London

The job posting trend of jobs advertised in 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 London

Apache Solr
Contractor Daily Rate Trend in London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Apache Solr in London.

Contractor daily rate trend for Apache Solr in London

Apache Solr
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing Apache Solr in London over the 3 months to 26 June 2017.

Contractor daily rate histogram for Apache Solr in London

Apache Solr
Contractor Hourly Rate Trend in London

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Apache Solr in London.

Contractor hourly rate trend for Apache Solr in London

Apache Solr
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Apache Solr within the London region over the 3 months to 26 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London +10 16 £500 +8.10% 3
Croydon +5 6 £548 +15.26% 3
Canary Wharf +4 2 £650 -
Docklands, London - 1 £471 -
Apache Solr
England

For the 6 months to 26 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 London region with a requirement for Apache Solr.

1 73 (49.66%) Agile Software Development
2 71 (48.30%) Java
3 58 (39.46%) TDD
4 53 (36.05%) Spring
5 52 (35.37%) Elasticsearch
6 49 (33.33%) HTML
7 47 (31.97%) CSS
8 42 (28.57%) Hadoop
9 41 (27.89%) Kafka
10 40 (27.21%) Spring Boot
10 40 (27.21%) JavaScript
11 39 (26.53%) SQL
11 39 (26.53%) Git (software)
11 39 (26.53%) Apache Spark
12 36 (24.49%) Microservices
12 36 (24.49%) JIRA
13 35 (23.81%) Big Data
14 34 (23.13%) Confluence
14 34 (23.13%) Python
15 31 (21.09%) Lucene
16 30 (20.41%) HBase
17 28 (19.05%) Amazon AWS
18 27 (18.37%) MVC
18 27 (18.37%) REST
18 27 (18.37%) HDFS
19 26 (17.69%) Linux
20 25 (17.01%) Apache
20 25 (17.01%) Apache ZooKeeper
21 24 (16.33%) Servlets
21 24 (16.33%) Spring MVC

Apache Solr
Co-occurring IT Skills in 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 52 (35.37%) Elasticsearch
2 39 (26.53%) Apache Spark
3 34 (23.13%) Confluence
4 25 (17.01%) Apache
5 14 (9.52%) Apache Pig
6 11 (7.48%) WebSphere
7 8 (5.44%) Adobe Experience Manager
7 8 (5.44%) Tomcat
8 7 (4.76%) JBoss
9 6 (4.08%) CMS
10 5 (3.40%) Drupal
10 5 (3.40%) Mule
10 5 (3.40%) nginx
10 5 (3.40%) SharePoint
11 3 (2.04%) MS Exchange
11 3 (2.04%) WordPress
12 2 (1.36%) IBM Domino
12 2 (1.36%) IIS
12 2 (1.36%) MQSeries
12 2 (1.36%) Oracle Workflow
Business Applications
1 17 (11.56%) SAP Hybris
2 1 (0.68%) BusinessWorks
2 1 (0.68%) SAP Oil and Gas
Cloud Services
1 28 (19.05%) Amazon AWS
2 18 (12.24%) Microsoft Azure
3 7 (4.76%) GitHub
4 6 (4.08%) Cloud Computing
5 3 (2.04%) Amazon EC2
6 2 (1.36%) Akamai
6 2 (1.36%) Amazon CloudWatch
6 2 (1.36%) Amazon S3
6 2 (1.36%) Amazon SQS
6 2 (1.36%) AWS Lambda
6 2 (1.36%) CloudFront
6 2 (1.36%) Office 365
6 2 (1.36%) SaaS
7 1 (0.68%) Amazon CloudSearch
7 1 (0.68%) Amazon ElastiCache
7 1 (0.68%) Amazon EMR
7 1 (0.68%) Azure Data Factory
7 1 (0.68%) Slack
7 1 (0.68%) Trello
7 1 (0.68%) Virtual Private Cloud
Communications & Networking
1 17 (11.56%) Kerberos
2 8 (5.44%) LDAP
3 5 (3.40%) Network Security
4 4 (2.72%) Skype
4 4 (2.72%) SSL
5 2 (1.36%) Intranet
5 2 (1.36%) S/MIME
6 1 (0.68%) HTTP
6 1 (0.68%) Internet
6 1 (0.68%) TCP/IP
Database & Business Intelligence
1 42 (28.57%) Hadoop
2 35 (23.81%) Big Data
3 30 (20.41%) HBase
4 22 (14.97%) Apache Cassandra
4 22 (14.97%) NoSQL
5 20 (13.61%) Apache Hive
6 16 (10.88%) MongoDB
7 12 (8.16%) DataStax
8 10 (6.80%) MySQL
8 10 (6.80%) Sqoop
9 9 (6.12%) PostgreSQL
9 9 (6.12%) SQL Server
10 6 (4.08%) Impala
11 4 (2.72%) Apache Zeppelin
11 4 (2.72%) Data Warehouse
11 4 (2.72%) Riak
12 3 (2.04%) Data Mining
12 3 (2.04%) MariaDB
12 3 (2.04%) MarkLogic
12 3 (2.04%) Relational Database
Development Applications
1 39 (26.53%) Git (software)
2 36 (24.49%) JIRA
3 17 (11.56%) Jenkins
4 12 (8.16%) Cucumber
5 11 (7.48%) Selenium
6 10 (6.80%) CasperJS
6 10 (6.80%) PhantomJS
7 9 (6.12%) IntelliJ
7 9 (6.12%) Maven
8 6 (4.08%) Bitbucket
8 6 (4.08%) Karma Test Runner
9 5 (3.40%) Atlassian Bamboo
9 5 (3.40%) GitLab
9 5 (3.40%) Hudson
9 5 (3.40%) JUnit
10 4 (2.72%) TeamCity
11 3 (2.04%) gulp
11 3 (2.04%) Talend Open Studio
12 2 (1.36%) GoCD
12 2 (1.36%) SonarQube
General
1 21 (14.29%) Finance
2 14 (9.52%) Banking
3 6 (4.08%) Investment Banking
4 5 (3.40%) Marketing
5 4 (2.72%) Financial Institution
5 4 (2.72%) Publishing
5 4 (2.72%) Retail
6 3 (2.04%) Advertising
6 3 (2.04%) Legal
7 2 (1.36%) Billing
7 2 (1.36%) Manufacturing
7 2 (1.36%) Telecoms
8 1 (0.68%) Digital Economy
8 1 (0.68%) Electronics
8 1 (0.68%) Retail Banking
Job Titles
1 80 (54.42%) Developer
2 31 (21.09%) Java Developer
3 18 (12.24%) Hybris Developer
4 14 (9.52%) Architect
5 13 (8.84%) Data Engineer
6 10 (6.80%) Big Data Engineer
6 10 (6.80%) Web Engineer
7 9 (6.12%) Senior Developer
8 8 (5.44%) Big Data Developer
9 7 (4.76%) Administrator
9 7 (4.76%) Applications Architect
9 7 (4.76%) Hadoop Administrator
10 6 (4.08%) Full Stack Developer
10 6 (4.08%) Senior Java Developer
11 5 (3.40%) Angular Developer
11 5 (3.40%) Drupal Developer
11 5 (3.40%) Hadoop Engineer
11 5 (3.40%) Integration Architect
11 5 (3.40%) Python Developer
11 5 (3.40%) SAP Developer
Libraries, Frameworks & Software Standards
1 53 (36.05%) Spring
2 49 (33.33%) HTML
3 47 (31.97%) CSS
4 41 (27.89%) Kafka
5 40 (27.21%) Spring Boot
6 31 (21.09%) Lucene
7 27 (18.37%) REST
8 24 (16.33%) Servlets
8 24 (16.33%) Spring MVC
9 23 (15.65%) JSP
10 14 (9.52%) AngularJS
10 14 (9.52%) jQuery
11 13 (8.84%) RabbitMQ
11 13 (8.84%) Web Services
12 12 (8.16%) Drools
12 12 (8.16%) JMS
12 12 (8.16%) RESTful
13 11 (7.48%) HTML5
13 11 (7.48%) JSON
14 10 (6.80%) Django
Miscellaneous
1 14 (9.52%) Algorithms
2 12 (8.16%) Analytical Skills
3 7 (4.76%) Distributed Denial-of-Service
4 6 (4.08%) Data Structures
5 5 (3.40%) Computer Science
5 5 (3.40%) Mobile App
5 5 (3.40%) Private Cloud
5 5 (3.40%) Tandem
6 4 (2.72%) Virtual Team
7 3 (2.04%) Greenfield Project
8 2 (1.36%) Digital Media
8 2 (1.36%) Enterprise Software
8 2 (1.36%) Management Information System
9 1 (0.68%) Clustering
9 1 (0.68%) Fintech
9 1 (0.68%) Hedge funds
9 1 (0.68%) Linux Command Line
9 1 (0.68%) Mobile Banking
9 1 (0.68%) Replication
9 1 (0.68%) Social Network
Operating Systems
1 26 (17.69%) Linux
2 12 (8.16%) Unix
3 6 (4.08%) Windows
4 4 (2.72%) CentOS
4 4 (2.72%) Red Hat Enterprise Linux
5 3 (2.04%) Apple iOS
5 3 (2.04%) Fedora
5 3 (2.04%) Mac OS X
6 2 (1.36%) Windows Server
7 1 (0.68%) Android
7 1 (0.68%) Windows Server 2012
Processes & Methodologies
1 73 (49.66%) Agile Software Development
2 58 (39.46%) TDD
3 36 (24.49%) Microservices
4 27 (18.37%) MVC
5 22 (14.97%) Data Architecture
6 20 (13.61%) DevOps
7 18 (12.24%) BDD
7 18 (12.24%) Waterfall
8 17 (11.56%) Open Source
9 16 (10.88%) MapReduce
10 12 (8.16%) Scrum
11 11 (7.48%) OO
11 11 (7.48%) Pair Programming
12 9 (6.12%) Computer Forensics
12 9 (6.12%) Continuous Integration
12 9 (6.12%) E-Discovery
12 9 (6.12%) ETL
12 9 (6.12%) Machine Learning
12 9 (6.12%) SOA
13 8 (5.44%) Content Management
Programming Languages
1 71 (48.30%) Java
2 40 (27.21%) JavaScript
3 39 (26.53%) SQL
4 34 (23.13%) Python
5 11 (7.48%) XPath
6 9 (6.12%) C#
7 7 (4.76%) PHP
7 7 (4.76%) Scala
8 6 (4.08%) Groovy
8 6 (4.08%) SPARQL
9 5 (3.40%) Bash Shell
9 5 (3.40%) Perl
10 4 (2.72%) R
11 3 (2.04%) GraphQL
11 3 (2.04%) PowerShell
12 2 (1.36%) C
13 1 (0.68%) ActionScript
13 1 (0.68%) Erlang
13 1 (0.68%) Shell Script
13 1 (0.68%) VB.NET
Qualifications
1 16 (10.88%) Security Cleared
2 14 (9.52%) SC Cleared
3 7 (4.76%) CISA
3 7 (4.76%) CISM
3 7 (4.76%) CISSP
4 5 (3.40%) Degree
5 2 (1.36%) DBS Check
5 2 (1.36%) Master's Degree
6 1 (0.68%) DV Cleared
Quality Assurance & Compliance
1 6 (4.08%) FedRAMP
1 6 (4.08%) PCI DSS
1 6 (4.08%) QA
System Software
1 27 (18.37%) HDFS
2 25 (17.01%) Apache ZooKeeper
3 22 (14.97%) Docker
4 13 (8.84%) Apache Flume
5 7 (4.76%) Active Directory
6 1 (0.68%) Varnish
Systems Management
1 12 (8.16%) Ansible
2 11 (7.48%) Kubernetes
2 11 (7.48%) Terraform
3 10 (6.80%) Hadoop YARN
3 10 (6.80%) Kibana
4 8 (5.44%) logstash
5 5 (3.40%) Mesos
6 4 (2.72%) Ambari
6 4 (2.72%) Oozie
7 3 (2.04%) Puppet
8 2 (1.36%) FTK
8 2 (1.36%) Rundeck
9 1 (0.68%) Opscode Chef
Vendors
1 19 (12.93%) SAP
2 18 (12.24%) hybris
3 11 (7.48%) Cloudera
4 8 (5.44%) Adobe
5 7 (4.76%) IBM
5 7 (4.76%) Oracle
6 5 (3.40%) Ab Initio
6 5 (3.40%) HP
7 4 (2.72%) Hortonworks
7 4 (2.72%) Informatica
8 3 (2.04%) Alteryx
8 3 (2.04%) Tableau
8 3 (2.04%) Talend
9 2 (1.36%) Dynatrace
9 2 (1.36%) Nuix
9 2 (1.36%) Sybase
10 1 (0.68%) Microsoft
10 1 (0.68%) Novell
10 1 (0.68%) Teradata
10 1 (0.68%) TIBCO
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