Period
to 21 November 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 21 November 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
21 Nov 2018
Same period 2017 Same period 2016
Rank 40 31 -
Rank change year-on-year -9 - -
Contract jobs citing D3.js 2 1 0
As % of all contract IT jobs advertised in Slough 0.58% 0.34% -
As % of the Libraries, Frameworks & Software Standards category 2.17% 1.37% -
Number of daily rates quoted 2 1 0
Slough median daily rate £494 £425 -
Median daily rate % change year-on-year +16.18% - -
Berkshire median daily rate £485 £450 £400
% change year-on-year +7.78% +12.50% -
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 92 73 68
As % of all contract IT jobs advertised in Slough 26.51% 24.66% 21.73%
Number of daily rates quoted 68 52 51
Slough median daily rate £403 £425 £363
Median daily rate % change year-on-year -5.29% +17.24% +11.54%
10th Percentile £225 £313 £263
90th Percentile £550 £549 £469
Berkshire median daily rate £425 £400 £400
% change year-on-year +6.25% - -
Number of hourly rates quoted 0 0 0
Slough median hourly rate - - -
Berkshire median hourly rate £33.25 £32.00 £21.06
% change year-on-year +3.91% +51.98% -43.48%

D3.js
Job Vacancy Trend in Slough

Job postings citing D3.js as a percentage of all IT jobs advertised in Slough.

Job vacancy trend for D3.js in Slough

D3.js
Contractor Daily Rate Trend in Slough

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing D3.js in Slough.

Contractor daily rate trend for D3.js in Slough

For the 6 months to 21 November 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 2 (100.00%) AngularJS
1 2 (100.00%) React
2 1 (50.00%) Vue.js
2 1 (50.00%) Asynchronous Programming
2 1 (50.00%) High-Fidelity Prototypes
2 1 (50.00%) A/B Testing
2 1 (50.00%) SignalR
2 1 (50.00%) Protocol Buffers
2 1 (50.00%) Apache Avro
2 1 (50.00%) Elasticsearch
2 1 (50.00%) TypeScript
2 1 (50.00%) ASP.NET Web API
2 1 (50.00%) Docker
2 1 (50.00%) Anomaly Detection
2 1 (50.00%) User Experience
2 1 (50.00%) Apache Spark
2 1 (50.00%) Kubernetes
2 1 (50.00%) C#
2 1 (50.00%) HTML
2 1 (50.00%) JavaScript
2 1 (50.00%) SQL
2 1 (50.00%) .NET
2 1 (50.00%) SQL Server
2 1 (50.00%) CSS
2 1 (50.00%) Linux
2 1 (50.00%) OO
2 1 (50.00%) HTTP
2 1 (50.00%) B2B
2 1 (50.00%) Microsoft
2 1 (50.00%) Service Delivery

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 (50.00%) Apache Solr
1 1 (50.00%) Apache Spark
1 1 (50.00%) Elasticsearch
Cloud Services
1 1 (50.00%) Amazon AWS
Communications & Networking
1 1 (50.00%) HTTP
Database & Business Intelligence
1 1 (50.00%) Apache Cassandra
1 1 (50.00%) MongoDB
1 1 (50.00%) Neo4j
1 1 (50.00%) NoSQL
1 1 (50.00%) Redis
1 1 (50.00%) SQL Server
1 1 (50.00%) SQL Server 2012
Development Applications
1 1 (50.00%) Balsamiq Mockups
Job Titles
1 1 (50.00%) Data Visualisation Expert
1 1 (50.00%) Developer
1 1 (50.00%) Web Developer
Libraries, Frameworks & Software Standards
1 2 (100.00%) AngularJS
1 2 (100.00%) React
2 1 (50.00%) .NET
2 1 (50.00%) .NET Framework
2 1 (50.00%) Ajax
2 1 (50.00%) Apache Avro
2 1 (50.00%) ASP.NET Web API
2 1 (50.00%) CSS
2 1 (50.00%) CSS3
2 1 (50.00%) HTML
2 1 (50.00%) jQuery
2 1 (50.00%) JSON
2 1 (50.00%) Lucene
2 1 (50.00%) Memcached
2 1 (50.00%) Natural Language Processing
2 1 (50.00%) Node.js
2 1 (50.00%) Protocol Buffers
2 1 (50.00%) RabbitMQ
2 1 (50.00%) SignalR
2 1 (50.00%) Vue.js
Miscellaneous
1 1 (50.00%) User Experience
Operating Systems
1 1 (50.00%) Linux
1 1 (50.00%) Ubuntu
Processes & Methodologies
1 1 (50.00%) A/B Testing
1 1 (50.00%) Anomaly Detection
1 1 (50.00%) Asynchronous Programming
1 1 (50.00%) B2B
1 1 (50.00%) Data Visualisation
1 1 (50.00%) High-Fidelity Prototypes
1 1 (50.00%) Machine Learning
1 1 (50.00%) Market Research
1 1 (50.00%) MVC
1 1 (50.00%) OO
1 1 (50.00%) Scrum
1 1 (50.00%) Service Delivery
1 1 (50.00%) Visualisation
1 1 (50.00%) Web Development
Programming Languages
1 1 (50.00%) C#
1 1 (50.00%) JavaScript
1 1 (50.00%) SQL
1 1 (50.00%) TypeScript
System Software
1 1 (50.00%) Docker
Systems Management
1 1 (50.00%) Kubernetes
Vendors
1 1 (50.00%) Microsoft
1 1 (50.00%) Rackspace