Period
to 23 November 2017

The following table provides summary statistics for contract job vacancies with a requirement for Snowflake Schema skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Snowflake Schema over the 6 months to 23 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.

Snowflake Schema
UK
6 months to
23 Nov 2017
Same period 2016 Same period 2015
Rank 838 841 868
Rank change year-on-year +3 +27 -23
Contract jobs citing Snowflake Schema 49 50 27
As % of all contract IT jobs advertised in the UK 0.048% 0.048% 0.024%
As % of the Database & Business Intelligence category 0.22% 0.21% 0.10%
Number of daily rates quoted 21 25 23
UK median daily rate £420 £500 £425
Median daily rate % change year-on-year -16.00% +17.65% +17.24%
10th Percentile £325 £301 £313
90th Percentile £675 £645 £500
UK excluding London median daily rate £375 £479 £338
% change year-on-year -21.71% +41.93% -3.57%
Number of hourly rates quoted 0 0 0
UK median hourly rate - - -
UK excluding London median hourly rate - - -

Snowflake Schema is in the Databases and Business Intelligence category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies with a requirement for database or business intelligence skills.

All Database and Business Intelligence Skills
UK
Contract vacancies with a requirement for database or business intelligence skills 22743 23781 26457
As % of all contract IT jobs advertised in the UK 22.06% 22.59% 23.28%
Number of daily rates quoted 15551 15761 17432
UK median daily rate £450 £425 £400
Median daily rate % change year-on-year +5.88% +6.25% +0.63%
10th Percentile £310 £285 £269
90th Percentile £625 £600 £575
UK excluding London median daily rate £400 £378 £375
% change year-on-year +5.96% +0.67% +7.14%
Number of hourly rates quoted 288 370 412
UK median hourly rate £31.23 £28.00 £28.13
Median hourly rate % change year-on-year +11.54% -0.44% +12.50%
10th Percentile £14.18 £10.00 £12.00
90th Percentile £57.44 £52.02 £52.17
UK excluding London median hourly rate £35.00 £28.00 £29.50
% change year-on-year +25.00% -5.08% +29.13%

Snowflake Schema
Job Vacancy Trend

Job postings citing Snowflake Schema as a percentage of all IT jobs advertised.

Job vacancy trend for Snowflake Schema in the UK

Snowflake Schema
Contractor Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Snowflake Schema.

Contractor daily rate trend for Snowflake Schema in the UK

Snowflake Schema
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing Snowflake Schema over the 6 months to 23 November 2017.

Contractor daily rate histogram for Snowflake Schema in the UK

Snowflake Schema
Top 12 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Snowflake Schema within the UK over the 6 months to 23 November 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +15 43 £450 -11.76% 5
UK excluding London +47 29 £375 -21.71% 6
London -26 20 £450 -18.18%
North of England - 8 £350 - 2
Scotland +1 6 £375 +15.38% 1
South West -4 5 £555 +3.26%
North West - 5 - - 2
Midlands +29 4 - -
East of England -15 4 £580 +30.34% 3
East Midlands - 4 - -
Yorkshire - 3 £350 -
South East -1 2 £400 -21.57%

For the 6 months to 23 November 2017, IT contractor jobs citing Snowflake Schema also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads with a requirement for Snowflake Schema.

1 34 (69.39%) Data Warehouse
1 34 (69.39%) Data Modelling
1 34 (69.39%) ETL
2 25 (51.02%) SQL
3 17 (34.69%) Business Intelligence
4 16 (32.65%) Oracle
5 15 (30.61%) Star Schema
5 15 (30.61%) SQL Server Integration Services
6 13 (26.53%) SQL Server Analysis Services
6 13 (26.53%) Data Integration
6 13 (26.53%) Web Services
7 12 (24.49%) Kimball Methodology
7 12 (24.49%) Analytics
8 11 (22.45%) Data Analytics
8 11 (22.45%) UML
8 11 (22.45%) Java
8 11 (22.45%) TOGAF
9 10 (20.41%) Agile Software Development
9 10 (20.41%) Retail
9 10 (20.41%) Data Architecture
9 10 (20.41%) Oracle BI EE
9 10 (20.41%) Relational Database
10 9 (18.37%) Analytical Skills
10 9 (18.37%) Visualisation
10 9 (18.37%) Informatica
10 9 (18.37%) RDBMS
11 8 (16.33%) SAS
11 8 (16.33%) ERwin
11 8 (16.33%) SQL Server
11 8 (16.33%) PL/SQL

Snowflake Schema
Co-occurring IT Skills 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 8 (16.33%) SAS
1 8 (16.33%) WildFly
2 6 (12.24%) JBoss
3 2 (4.08%) Confluence
4 1 (2.04%) Apache Spark
Applications
1 7 (14.29%) MS Visio
2 2 (4.08%) SPSS
Cloud Services
1 3 (6.12%) Google Cloud Platform
2 2 (4.08%) Microsoft Azure
3 1 (2.04%) Amazon AWS
3 1 (2.04%) Amazon S3
Communications & Networking
1 2 (4.08%) Intranet
Database & Business Intelligence
1 34 (69.39%) Data Warehouse
2 15 (30.61%) SQL Server Integration Services
2 15 (30.61%) Star Schema
3 13 (26.53%) SQL Server Analysis Services
4 10 (20.41%) Oracle BI EE
4 10 (20.41%) Relational Database
5 9 (18.37%) RDBMS
6 8 (16.33%) Enterprise Data Warehouse
6 8 (16.33%) Oracle Exadata
6 8 (16.33%) SQL Server
7 7 (14.29%) Oracle Discoverer
8 5 (10.20%) SAS Enterprise Guide
9 4 (8.16%) OLAP
9 4 (8.16%) Oracle OLAP
10 3 (6.12%) DataStage
10 3 (6.12%) Oracle Database 11g
10 3 (6.12%) Oracle Database 12c
10 3 (6.12%) Oracle ODI
10 3 (6.12%) Power BI
10 3 (6.12%) SQL Server Reporting Services
Development Applications
1 8 (16.33%) ERwin
2 6 (12.24%) Team Foundation Server
3 5 (10.20%) Toad
4 2 (4.08%) JIRA
5 1 (2.04%) Jenkins
5 1 (2.04%) Talend Open Studio
5 1 (2.04%) VSS/SourceSafe
General
1 10 (20.41%) Retail
2 7 (14.29%) Banking
2 7 (14.29%) Finance
3 3 (6.12%) Electronics
3 3 (6.12%) Investment Banking
3 3 (6.12%) Manufacturing
3 3 (6.12%) Marketing
3 3 (6.12%) Telecoms
Job Titles
1 22 (44.90%) Developer
2 19 (38.78%) Architect
3 15 (30.61%) Data Architect
4 10 (20.41%) Data Modeller
5 9 (18.37%) ETL Developer
6 7 (14.29%) Solutions Architect
6 7 (14.29%) SQL Developer
7 5 (10.20%) SSAS Developer
7 5 (10.20%) SSIS Developer
8 4 (8.16%) Data Analytics Architect
8 4 (8.16%) Informatica Developer
8 4 (8.16%) Informatica ETL Developer
9 3 (6.12%) Business Intelligence Developer
9 3 (6.12%) Java Architect
9 3 (6.12%) OBIEE Developer
9 3 (6.12%) SAS Architect
10 2 (4.08%) Java Solutions Architect
10 2 (4.08%) SQL BI Developer
10 2 (4.08%) SSRS Developer
10 2 (4.08%) T-SQL Developer
Libraries, Frameworks & Software Standards
1 13 (26.53%) Web Services
2 8 (16.33%) EJB
2 8 (16.33%) Java EE
2 8 (16.33%) JDBC
2 8 (16.33%) JMS
2 8 (16.33%) JPA
2 8 (16.33%) Servlets
3 5 (10.20%) REST
3 5 (10.20%) WSDL
3 5 (10.20%) XML
3 5 (10.20%) XSD
4 2 (4.08%) CSS
4 2 (4.08%) HTML
5 1 (2.04%) .NET
5 1 (2.04%) Kafka
5 1 (2.04%) Middleware
Miscellaneous
1 9 (18.37%) Analytical Skills
2 7 (14.29%) Market Risk
3 2 (4.08%) Management Information System
3 2 (4.08%) NHS
4 1 (2.04%) N-Tier
4 1 (2.04%) User Experience
Processes & Methodologies
1 34 (69.39%) Data Modelling
1 34 (69.39%) ETL
2 17 (34.69%) Business Intelligence
3 13 (26.53%) Data Integration
4 12 (24.49%) Analytics
4 12 (24.49%) Kimball Methodology
5 11 (22.45%) Data Analytics
5 11 (22.45%) TOGAF
5 11 (22.45%) UML
6 10 (20.41%) Agile Software Development
6 10 (20.41%) Data Architecture
7 9 (18.37%) Visualisation
8 8 (16.33%) Data Visualisation
9 7 (14.29%) SOA
10 6 (12.24%) Dimensional Modelling
11 5 (10.20%) Data Cleansing
11 5 (10.20%) Enterprise Architecture
11 5 (10.20%) Inmon Methodology
11 5 (10.20%) Migration
11 5 (10.20%) Performance Tuning
Programming Languages
1 25 (51.02%) SQL
2 11 (22.45%) Java
3 8 (16.33%) PL/SQL
4 5 (10.20%) SAS Macro
4 5 (10.20%) T-SQL
5 4 (8.16%) C#
5 4 (8.16%) Python
6 2 (4.08%) JavaScript
6 2 (4.08%) R
7 1 (2.04%) C
7 1 (2.04%) COBOL
7 1 (2.04%) Data Analysis Expressions (DAX)
7 1 (2.04%) JCL
7 1 (2.04%) VB.NET
Qualifications
1 4 (8.16%) SC Cleared
1 4 (8.16%) Security Cleared
Quality Assurance & Compliance
1 4 (8.16%) Data Quality
Vendors
1 16 (32.65%) Oracle
2 9 (18.37%) Informatica
3 8 (16.33%) Tableau
4 6 (12.24%) Microsoft
5 4 (8.16%) Cognos
6 3 (6.12%) Capita
6 3 (6.12%) Google
6 3 (6.12%) SAP
6 3 (6.12%) Sybase
7 2 (4.08%) Ab Initio
8 1 (2.04%) Adobe
8 1 (2.04%) MicroStrategy
8 1 (2.04%) Talend
8 1 (2.04%) Teradata