Period
to 19 November 2017

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Lucene skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Lucene over the 6 months to 19 November 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 Lucene
Central London > City of London
6 months to
19 Nov 2017
Same period 2016 Same period 2015
Rank 231 - 263
Rank change year-on-year - +263 +29
Contract jobs citing Lucene 9 0 8
As % of all contract IT jobs advertised in the City of London 0.13% - 0.087%
As % of the Libraries, Frameworks & Software Standards category 0.34% - 0.28%
Number of daily rates quoted 9 0 7
City of London median daily rate £475 - £300
Central London median daily rate £475 - £319
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

Lucene is in the Software Libraries and Frameworks 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 technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
City of London
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 2679 2396 2849
As % of all contract IT jobs advertised in the City of London 38.13% 36.02% 31.02%
Number of daily rates quoted 2247 2028 2351
City of London median daily rate £510 £475 £475
Median daily rate % change year-on-year +7.37% - +5.56%
10th Percentile £363 £325 £313
90th Percentile £671 £638 £638
Central London median daily rate £500 £475 £460
% change year-on-year +5.26% +3.26% +8.24%
Number of hourly rates quoted 10 4 12
City of London median hourly rate £22.99 £35.00 £38.75
Median hourly rate % change year-on-year -34.31% -9.68% +49.04%
10th Percentile £20.28 £19.00 £10.33
90th Percentile £33.75 £56.31 £66.25
Central London median hourly rate £21.50 £35.00 £38.75
% change year-on-year -38.57% -9.68% +49.04%

Lucene
Job Vacancy Trend in the City of London

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

Job vacancy trend for Lucene in the City of London

Lucene
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 Lucene in the City of London.

Contractor daily rate trend for Lucene in the City of London

Lucene
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Lucene in the City of London over the 6 months to 19 November 2017.

Contractor daily rate histogram for Lucene in the City of London

For the 6 months to 19 November 2017, IT contractor jobs citing Lucene 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 City of London region with a requirement for Lucene.

1 6 (66.67%) C#
1 6 (66.67%) .NET
2 5 (55.56%) Microsoft
3 4 (44.44%) MVC
3 4 (44.44%) SQL Server
3 4 (44.44%) Python
3 4 (44.44%) ASP.NET
3 4 (44.44%) Bash Shell
3 4 (44.44%) Natural Language Processing
3 4 (44.44%) Machine Learning
3 4 (44.44%) Elasticsearch
4 3 (33.33%) SQL Server 2012
4 3 (33.33%) AngularJS
4 3 (33.33%) TypeScript
4 3 (33.33%) Lucene.Net
4 3 (33.33%) Apache Spark
4 3 (33.33%) Docker
4 3 (33.33%) Octopus Deploy
4 3 (33.33%) Aurelia
4 3 (33.33%) Greenfield Project
4 3 (33.33%) MSTest
4 3 (33.33%) Moq
4 3 (33.33%) Microsoft Azure
4 3 (33.33%) ASP.NET MVC
4 3 (33.33%) jQuery
4 3 (33.33%) SQL Server 2008
4 3 (33.33%) TeamCity
4 3 (33.33%) Git (software)
4 3 (33.33%) Team Foundation Server
4 3 (33.33%) Ajax

Lucene
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 4 (44.44%) Elasticsearch
2 3 (33.33%) Apache Spark
3 2 (22.22%) OpenStack
4 1 (11.11%) Apache
Applications
1 2 (22.22%) Microsoft Office
1 2 (22.22%) SPSS
1 2 (22.22%) Weka
Cloud Services
1 3 (33.33%) Microsoft Azure
Database & Business Intelligence
1 4 (44.44%) SQL Server
2 3 (33.33%) SQL Server 2005
2 3 (33.33%) SQL Server 2008
2 3 (33.33%) SQL Server 2012
3 2 (22.22%) Big Data
3 2 (22.22%) Data Mining
3 2 (22.22%) KNIME
3 2 (22.22%) STATISTICA
4 1 (11.11%) Apache Hive
4 1 (11.11%) Hadoop
4 1 (11.11%) HBase
4 1 (11.11%) Pentaho
4 1 (11.11%) Redis
Development Applications
1 3 (33.33%) Git (software)
1 3 (33.33%) Moq
1 3 (33.33%) MSTest
1 3 (33.33%) NUnit
1 3 (33.33%) Octopus Deploy
1 3 (33.33%) Team Foundation Server
1 3 (33.33%) TeamCity
General
1 3 (33.33%) Finance
2 2 (22.22%) Law
2 2 (22.22%) Legal
Job Titles
1 6 (66.67%) Developer
2 4 (44.44%) C# Developer
3 3 (33.33%) .NET Developer
4 2 (22.22%) Data Scientist
4 2 (22.22%) Lead C# Developer
4 2 (22.22%) Lead Developer
4 2 (22.22%) WPF Developer
5 1 (11.11%) Big Data Specialist
5 1 (11.11%) C# .NET Developer
5 1 (11.11%) Elasticsearch Developer
5 1 (11.11%) Senior .NET Developer
5 1 (11.11%) Senior C# .NET Developer
5 1 (11.11%) Senior C# Developer
5 1 (11.11%) Senior Developer
5 1 (11.11%) Technical Specialist
Libraries, Frameworks & Software Standards
1 6 (66.67%) .NET
2 4 (44.44%) ASP.NET
2 4 (44.44%) Natural Language Processing
3 3 (33.33%) Ajax
3 3 (33.33%) AngularJS
3 3 (33.33%) ASP.NET MVC
3 3 (33.33%) Aurelia
3 3 (33.33%) CSS
3 3 (33.33%) HTML
3 3 (33.33%) jQuery
3 3 (33.33%) Lucene.Net
3 3 (33.33%) WCF
4 2 (22.22%) .NET Framework
4 2 (22.22%) NumPy
4 2 (22.22%) Pandas
4 2 (22.22%) scikit-learn
4 2 (22.22%) SciPy
4 2 (22.22%) TensorFlow
4 2 (22.22%) WPF
4 2 (22.22%) XML
Miscellaneous
1 3 (33.33%) Greenfield Project
2 2 (22.22%) Algorithms
2 2 (22.22%) Computer Science
2 2 (22.22%) Data Structures
2 2 (22.22%) Linux Command Line
Operating Systems
1 2 (22.22%) Linux
1 2 (22.22%) Unix
1 2 (22.22%) Windows
Processes & Methodologies
1 4 (44.44%) Machine Learning
1 4 (44.44%) MVC
2 3 (33.33%) Agile Software Development
3 2 (22.22%) Analytics
3 2 (22.22%) Data Analysis
3 2 (22.22%) Data Munging
3 2 (22.22%) DevOps
3 2 (22.22%) Information Retrieval
3 2 (22.22%) Mathematics
3 2 (22.22%) OO
3 2 (22.22%) Software Engineering
3 2 (22.22%) Statistics
3 2 (22.22%) Use Case
3 2 (22.22%) Visualisation
3 2 (22.22%) Web Development
4 1 (11.11%) MapReduce
4 1 (11.11%) Microservices
4 1 (11.11%) SOLID
4 1 (11.11%) TDD
4 1 (11.11%) Test Automation
Programming Languages
1 6 (66.67%) C#
2 4 (44.44%) Bash Shell
2 4 (44.44%) Python
3 3 (33.33%) SQL
3 3 (33.33%) TypeScript
4 2 (22.22%) AWK
4 2 (22.22%) sed
4 2 (22.22%) Shell Script
5 1 (11.11%) Java
5 1 (11.11%) R
5 1 (11.11%) T-SQL
Qualifications
1 2 (22.22%) Degree
1 2 (22.22%) Master's Degree
1 2 (22.22%) Microsoft Certification
2 1 (11.11%) Numerate Degree
System Software
1 3 (33.33%) Docker
Systems Management
1 2 (22.22%) Ansible
2 1 (11.11%) Apache Slider
Vendors
1 5 (55.56%) Microsoft
2 2 (22.22%) IBM
2 2 (22.22%) Tableau
3 1 (11.11%) Cloudera