Period
to 23 September 2018

The following table provides summary statistics for contract job vacancies advertised in Slough with a requirement for D3.js skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited D3.js 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.

Data-Driven Documents (D3)
Berkshire > Slough
6 months to
23 Sep 2018
Same period 2017 Same period 2016
Rank 35 34 -
Rank change year-on-year -1 - +47
Contract jobs citing D3.js 1 1 0
As % of all contract IT jobs advertised in Slough 0.30% 0.34% -
As % of the Libraries, Frameworks & Software Standards category 1.15% 1.39% -
Number of daily rates quoted 1 1 0
Slough median daily rate £513 £425 -
Median daily rate % change year-on-year +20.59% - -
Berkshire median daily rate £544 £450 -
% change year-on-year +20.83% - -
Number of hourly rates quoted 0 0 0
Slough median hourly rate - - -
Berkshire median hourly rate - - -

D3.js 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 Slough with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
Slough
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 87 72 67
As % of all contract IT jobs advertised in Slough 26.36% 24.57% 21.07%
Number of daily rates quoted 67 54 52
Slough median daily rate £415 £400 £363
Median daily rate % change year-on-year +3.75% +10.34% +10.27%
10th Percentile £315 £313 £258
90th Percentile £528 £523 £470
Berkshire median daily rate £425 £400 £400
% change year-on-year +6.25% - +5.96%
Number of hourly rates quoted 0 0 0
Slough median hourly rate - - -
Berkshire median hourly rate £19.50 £23.00 £12.50
% change year-on-year -15.22% +84.00% -62.69%

For the 6 months to 23 September 2018, IT contractor jobs citing D3.js 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 Slough region with a requirement for D3.js.

1 1 (100.00%) C#
1 1 (100.00%) HTML
1 1 (100.00%) JavaScript
1 1 (100.00%) SQL
1 1 (100.00%) .NET
1 1 (100.00%) SQL Server
1 1 (100.00%) CSS
1 1 (100.00%) Linux
1 1 (100.00%) OO
1 1 (100.00%) HTTP
1 1 (100.00%) B2B
1 1 (100.00%) Microsoft
1 1 (100.00%) Service Delivery
1 1 (100.00%) MVC
1 1 (100.00%) Scrum
1 1 (100.00%) Lucene
1 1 (100.00%) Ajax
1 1 (100.00%) Ubuntu
1 1 (100.00%) Web Development
1 1 (100.00%) .NET Framework
1 1 (100.00%) JSON
1 1 (100.00%) jQuery
1 1 (100.00%) Market Research
1 1 (100.00%) Apache Solr
1 1 (100.00%) Amazon AWS
1 1 (100.00%) Memcached
1 1 (100.00%) MongoDB
1 1 (100.00%) Apache Cassandra
1 1 (100.00%) NoSQL
1 1 (100.00%) RabbitMQ

D3.js
Co-occurring IT Skills in Slough 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 1 (100.00%) Apache Solr
1 1 (100.00%) Apache Spark
1 1 (100.00%) Elasticsearch
Cloud Services
1 1 (100.00%) Amazon AWS
Communications & Networking
1 1 (100.00%) HTTP
Database & Business Intelligence
1 1 (100.00%) Apache Cassandra
1 1 (100.00%) MongoDB
1 1 (100.00%) Neo4j
1 1 (100.00%) NoSQL
1 1 (100.00%) Redis
1 1 (100.00%) SQL Server
1 1 (100.00%) SQL Server 2012
Job Titles
1 1 (100.00%) Developer
1 1 (100.00%) Web Developer
Libraries, Frameworks & Software Standards
1 1 (100.00%) .NET
1 1 (100.00%) .NET Framework
1 1 (100.00%) Ajax
1 1 (100.00%) AngularJS
1 1 (100.00%) Apache Avro
1 1 (100.00%) ASP.NET Web API
1 1 (100.00%) CSS
1 1 (100.00%) CSS3
1 1 (100.00%) HTML
1 1 (100.00%) jQuery
1 1 (100.00%) JSON
1 1 (100.00%) Kafka
1 1 (100.00%) LESS
1 1 (100.00%) Lucene
1 1 (100.00%) Memcached
1 1 (100.00%) Natural Language Processing
1 1 (100.00%) Node.js
1 1 (100.00%) Protocol Buffers
1 1 (100.00%) RabbitMQ
1 1 (100.00%) SignalR
Operating Systems
1 1 (100.00%) Linux
1 1 (100.00%) Ubuntu
Processes & Methodologies
1 1 (100.00%) Anomaly Detection
1 1 (100.00%) Asynchronous Programming
1 1 (100.00%) B2B
1 1 (100.00%) Machine Learning
1 1 (100.00%) Market Research
1 1 (100.00%) MVC
1 1 (100.00%) OO
1 1 (100.00%) Scrum
1 1 (100.00%) Service Delivery
1 1 (100.00%) Web Development
Programming Languages
1 1 (100.00%) C#
1 1 (100.00%) JavaScript
1 1 (100.00%) SQL
1 1 (100.00%) TypeScript
System Software
1 1 (100.00%) Docker
Systems Management
1 1 (100.00%) Kubernetes
Vendors
1 1 (100.00%) Microsoft
1 1 (100.00%) Rackspace