Period
to 16 August 2018

The following table provides summary statistics for contract job vacancies advertised in Hertfordshire with a requirement for CQRS skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited CQRS over the 6 months to 16 August 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.

Command-Query Responsibility Segregation (also Command-Query Separation)
East of England > Hertfordshire
6 months to
16 Aug 2018
Same period 2017 Same period 2016
Rank 86 - -
Rank change year-on-year - - -
Contract jobs citing CQRS 8 0 0
As % of all contract IT jobs advertised in Hertfordshire 0.51% - -
As % of the Processes & Methodologies category 0.62% - -
Number of daily rates quoted 7 0 0
Hertfordshire median daily rate £390 - -
East of England median daily rate £456 - -
Number of hourly rates quoted 0 0 0
Hertfordshire median hourly rate - - -
East of England median hourly rate - - -

CQRS is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Hertfordshire with a requirement for process or methodology skills.

All Process and Methodology Skills
Hertfordshire
Contract vacancies with a requirement for process or methodology skills 1,289 1,049 1,150
As % of all contract IT jobs advertised in Hertfordshire 81.89% 81.38% 79.20%
Number of daily rates quoted 742 544 616
Hertfordshire median daily rate £413 £411 £400
Median daily rate % change year-on-year +0.30% +2.81% +5.12%
10th Percentile £210 £213 £220
90th Percentile £569 £588 £550
East of England median daily rate £438 £425 £400
% change year-on-year +2.94% +6.25% +3.23%
Number of hourly rates quoted 94 66 47
Hertfordshire median hourly rate £17.32 £16.82 £25.00
Median hourly rate % change year-on-year +2.97% -32.72% +35.14%
10th Percentile £11.10 £11.76 £9.70
90th Percentile £46.25 £45.75 £53.75
East of England median hourly rate £17.50 £26.00 £25.00
% change year-on-year -32.69% +4.00% +9.89%

CQRS
Job Vacancy Trend in Hertfordshire

Job postings citing CQRS as a percentage of all IT jobs advertised in Hertfordshire.

Job vacancy trend for CQRS in Hertfordshire

CQRS
Contractor Daily Rate Trend in Hertfordshire

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

Contractor daily rate trend for CQRS in Hertfordshire

CQRS
Contractor Daily Rate Histogram in Hertfordshire

The daily rate distribution of IT jobs citing CQRS in Hertfordshire over the 6 months to 16 August 2018.

Contractor daily rate histogram for CQRS in Hertfordshire

CQRS
Contract Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing CQRS within the Hertfordshire region over the 6 months to 16 August 2018. 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
Welwyn Garden City - 1 - -
CQRS
East of England

For the 6 months to 16 August 2018, IT contractor jobs citing CQRS 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 Hertfordshire region with a requirement for CQRS.

1 7 (87.50%) RESTful
2 6 (75.00%) Apache Cassandra
2 6 (75.00%) PostgreSQL
3 5 (62.50%) Java
3 5 (62.50%) API Development
3 5 (62.50%) Capita
4 4 (50.00%) DevOps
5 3 (37.50%) .NET
6 2 (25.00%) Agile Software Development
6 2 (25.00%) TDD
6 2 (25.00%) Pair Programming
6 2 (25.00%) Spring
6 2 (25.00%) MySQL
6 2 (25.00%) JUnit
6 2 (25.00%) Linux
6 2 (25.00%) OO
6 2 (25.00%) JMS
6 2 (25.00%) SQL
6 2 (25.00%) MVC
6 2 (25.00%) Web Development
6 2 (25.00%) Integration Testing
6 2 (25.00%) Continuous Integration
6 2 (25.00%) PCI DSS
6 2 (25.00%) Git (software)
6 2 (25.00%) Domain-Driven Design
6 2 (25.00%) Amazon AWS
6 2 (25.00%) Mockito
6 2 (25.00%) BDD
6 2 (25.00%) Secure Coding
6 2 (25.00%) WireMock

CQRS
Co-occurring IT Skills in Hertfordshire 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:

Cloud Services
1 2 (25.00%) Amazon AWS
Database & Business Intelligence
1 6 (75.00%) Apache Cassandra
1 6 (75.00%) PostgreSQL
2 2 (25.00%) MySQL
Development Applications
1 2 (25.00%) Git (software)
1 2 (25.00%) Jenkins
1 2 (25.00%) JUnit
1 2 (25.00%) Mockito
Job Titles
1 8 (100.00%) Developer
2 5 (62.50%) Java Developer
3 3 (37.50%) .NET Developer
4 2 (25.00%) Senior Developer
4 2 (25.00%) Senior Java Developer
5 1 (12.50%) VB.NET Developer
Libraries, Frameworks & Software Standards
1 7 (87.50%) RESTful
2 3 (37.50%) .NET
3 2 (25.00%) JAX-RS
3 2 (25.00%) JMS
3 2 (25.00%) Spring
3 2 (25.00%) WireMock
4 1 (12.50%) ASP.NET Web API
Operating Systems
1 2 (25.00%) Linux
Processes & Methodologies
1 5 (62.50%) API Development
2 4 (50.00%) DevOps
3 2 (25.00%) Agile Software Development
3 2 (25.00%) BDD
3 2 (25.00%) Continuous Delivery
3 2 (25.00%) Continuous Integration
3 2 (25.00%) Domain-Driven Design
3 2 (25.00%) Integration Testing
3 2 (25.00%) Microservices
3 2 (25.00%) MVC
3 2 (25.00%) OO
3 2 (25.00%) Pair Programming
3 2 (25.00%) Secure Coding
3 2 (25.00%) TDD
3 2 (25.00%) Web Development
Programming Languages
1 5 (62.50%) Java
2 2 (25.00%) Java 8
2 2 (25.00%) SQL
3 1 (12.50%) VB.NET
Quality Assurance & Compliance
1 2 (25.00%) PCI DSS
Vendors
1 5 (62.50%) Capita