Period
to 19 November 2019

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Apache Cassandra skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Apache Cassandra over the 6 months to 19 November 2019 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 Cassandra
Central London > City of London
6 months to
19 Nov 2019
Same period 2018 Same period 2017
Rank 185 164 179
Rank change year-on-year -21 +15 -23
Contract jobs citing Apache Cassandra 41 96 68
As % of all contract IT jobs advertised in the City of London 0.70% 1.37% 0.97%
As % of the Database & Business Intelligence category 2.83% 5.43% 3.97%
Number of daily rates quoted 35 83 61
City of London median daily rate £575 £575 £625
Median daily rate % change year-on-year - -8.00% +16.28%
10th Percentile £463 £481 £475
90th Percentile £665 £685 £688
Central London median daily rate £575 £575 £600
% change year-on-year - -4.17% +14.29%
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

Apache Cassandra 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 advertised in the City of London with a requirement for database or business intelligence skills.

All Database and Business Intelligence Skills
City of London
Contract vacancies with a requirement for database or business intelligence skills 1,449 1,768 1,715
As % of all contract IT jobs advertised in the City of London 24.61% 25.22% 24.40%
Number of daily rates quoted 1,144 1,414 1,392
City of London median daily rate £525 £525 £525
10th Percentile £388 £370 £363
90th Percentile £684 £675 £688
Central London median daily rate £525 £525 £525
Number of hourly rates quoted 5 10 11
City of London median hourly rate £44.57 £29.80 £27.50
Median hourly rate % change year-on-year +49.57% +8.35% -38.89%
10th Percentile £21.20 £18.60 £20.75
90th Percentile £86.70 £48.05 £33.25
Central London median hourly rate £39.78 £29.80 £25.99
% change year-on-year +33.52% +14.63% -42.24%

Apache Cassandra
Job Vacancy Trend in the City of London

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

Job vacancy trend for Apache Cassandra in the City of London

Apache Cassandra
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 Apache Cassandra in the City of London.

Contractor daily rate trend for Apache Cassandra in the City of London

Apache Cassandra
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Apache Cassandra in the City of London over the 6 months to 19 November 2019.

Contractor daily rate histogram for Apache Cassandra in the City of London

For the 6 months to 19 November 2019, IT contractor jobs citing Apache Cassandra 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 City of London region with a requirement for Apache Cassandra.

1 30 (73.17%) Java
2 28 (68.29%) Kafka
3 21 (51.22%) NoSQL
3 21 (51.22%) Microservices
4 19 (46.34%) Agile Software Development
5 17 (41.46%) AWS
5 17 (41.46%) Docker
6 16 (39.02%) Scala
7 15 (36.59%) Kubernetes
8 13 (31.71%) TDD
8 13 (31.71%) Finance
8 13 (31.71%) Python
9 12 (29.27%) Continuous Delivery
9 12 (29.27%) DevOps
10 10 (24.39%) Apache Spark
10 10 (24.39%) Spring
11 9 (21.95%) JavaScript
11 9 (21.95%) SQL
11 9 (21.95%) Node.js
11 9 (21.95%) REST
11 9 (21.95%) Jenkins
12 8 (19.51%) Relational Database
12 8 (19.51%) Git (software)
13 7 (17.07%) RESTful
13 7 (17.07%) MongoDB
13 7 (17.07%) Web Services
13 7 (17.07%) Data Science
14 6 (14.63%) React
14 6 (14.63%) OO
14 6 (14.63%) Apache

Apache Cassandra
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 10 (24.39%) Apache Spark
2 6 (14.63%) Apache
3 5 (12.20%) JBoss
4 4 (9.76%) Apache Airflow
4 4 (9.76%) Elasticsearch
4 4 (9.76%) Luigi
5 1 (2.44%) Apache Solr
Cloud Services
1 17 (41.46%) AWS
2 4 (9.76%) GCP
3 2 (4.88%) Amazon Kinesis
3 2 (4.88%) Azure
3 2 (4.88%) OpenShift
4 1 (2.44%) Amazon S3
4 1 (2.44%) Amazon SQS
4 1 (2.44%) AWS IoT
Database & Business Intelligence
1 21 (51.22%) NoSQL
2 8 (19.51%) Relational Database
3 7 (17.07%) MongoDB
4 6 (14.63%) Big Data
4 6 (14.63%) HBase
4 6 (14.63%) Redis
5 5 (12.20%) Hadoop
5 5 (12.20%) PostgreSQL
6 4 (9.76%) Azkaban
6 4 (9.76%) RDBMS
7 3 (7.32%) InfluxDB
8 2 (4.88%) Amazon DynamoDB
8 2 (4.88%) Flink
8 2 (4.88%) FoundationDB
9 1 (2.44%) Amazon Redshift
9 1 (2.44%) BigQuery
9 1 (2.44%) Bigtable
9 1 (2.44%) Couchbase
9 1 (2.44%) DB2
9 1 (2.44%) SQL Server
Development Applications
1 9 (21.95%) Jenkins
2 8 (19.51%) Git (software)
3 4 (9.76%) Maven
4 1 (2.44%) Jasmine
4 1 (2.44%) JUnit
4 1 (2.44%) Karma Test Runner
4 1 (2.44%) Mockito
4 1 (2.44%) NUnit
4 1 (2.44%) Octopus Deploy
4 1 (2.44%) Spock
4 1 (2.44%) Team Foundation Server
General
1 13 (31.71%) Finance
2 6 (14.63%) Banking
3 5 (12.20%) Advertising
4 2 (4.88%) Games
5 1 (2.44%) Financial Institution
5 1 (2.44%) Marketing
5 1 (2.44%) Retail
5 1 (2.44%) Telecoms
Job Titles
1 21 (51.22%) Developer
2 12 (29.27%) Java Developer
3 7 (17.07%) Data Engineer
3 7 (17.07%) Full Stack Developer
4 6 (14.63%) Senior Developer
5 5 (12.20%) Scala Developer
6 4 (9.76%) Senior Scala Developer
7 3 (7.32%) Architect
7 3 (7.32%) AWS Developer
7 3 (7.32%) DevOps Engineer
7 3 (7.32%) Java Engineer
7 3 (7.32%) Java Software Engineer
7 3 (7.32%) Software Engineer
8 2 (4.88%) Cassandra Developer
8 2 (4.88%) Python Engineer
9 1 (2.44%) AWS Administrator
9 1 (2.44%) AWS DevOps
9 1 (2.44%) Machine Learning Engineer
9 1 (2.44%) SQL Analyst
9 1 (2.44%) Telecoms Java Developer
Libraries, Frameworks & Software Standards
1 28 (68.29%) Kafka
2 10 (24.39%) Spring
3 9 (21.95%) Node.js
3 9 (21.95%) REST
4 7 (17.07%) RESTful
4 7 (17.07%) Web Services
5 6 (14.63%) AngularJS
5 6 (14.63%) React
6 5 (12.20%) CSS
6 5 (12.20%) CSS3
6 5 (12.20%) Hibernate
6 5 (12.20%) HTML
6 5 (12.20%) HTML5
6 5 (12.20%) Spark Streaming
7 3 (7.32%) .NET
7 3 (7.32%) RabbitMQ
7 3 (7.32%) Spring Boot
8 2 (4.88%) Elastic Stack
8 2 (4.88%) FIX Protocol
9 1 (2.44%) JSON
Miscellaneous
1 4 (9.76%) Data Structures
1 4 (9.76%) Greenfield Project
2 3 (7.32%) User Experience
3 2 (4.88%) Enterprise Software
4 1 (2.44%) Cloud Native
4 1 (2.44%) Equities
4 1 (2.44%) Fixed Income
4 1 (2.44%) Public Cloud
4 1 (2.44%) SWIFT
4 1 (2.44%) Tandem
Operating Systems
1 3 (7.32%) Linux
2 1 (2.44%) Windows
Processes & Methodologies
1 21 (51.22%) Microservices
2 19 (46.34%) Agile Software Development
3 13 (31.71%) TDD
4 12 (29.27%) Continuous Delivery
4 12 (29.27%) DevOps
5 7 (17.07%) Data Science
6 6 (14.63%) Analytics
6 6 (14.63%) Continuous Integration
6 6 (14.63%) Machine Learning
6 6 (14.63%) OO
6 6 (14.63%) Pair Programming
6 6 (14.63%) Test Automation
6 6 (14.63%) Web Development
7 5 (12.20%) BDD
7 5 (12.20%) Computer Science
7 5 (12.20%) Responsive Web Design
7 5 (12.20%) Software Engineering
7 5 (12.20%) Unit Testing
8 4 (9.76%) Scrum
8 4 (9.76%) Workflow
Programming Languages
1 30 (73.17%) Java
2 16 (39.02%) Scala
3 13 (31.71%) Python
4 9 (21.95%) JavaScript
4 9 (21.95%) SQL
5 5 (12.20%) C++
5 5 (12.20%) TypeScript
6 4 (9.76%) AWK
6 4 (9.76%) Go
6 4 (9.76%) sed
7 2 (4.88%) C#
7 2 (4.88%) Clojure
7 2 (4.88%) ClojureScript
7 2 (4.88%) Kotlin
8 1 (2.44%) C
8 1 (2.44%) Ruby
Qualifications
1 5 (12.20%) Degree
2 1 (2.44%) Numerate Degree
2 1 (2.44%) Security Cleared
Quality Assurance & Compliance
1 1 (2.44%) QA
System Software
1 17 (41.46%) Docker
2 1 (2.44%) Apache ZooKeeper
Systems Management
1 15 (36.59%) Kubernetes
2 5 (12.20%) Ansible
3 4 (9.76%) Terraform
4 2 (4.88%) Consul
4 2 (4.88%) Kibana
4 2 (4.88%) logstash
4 2 (4.88%) Opscode Chef
5 1 (2.44%) Graphite
5 1 (2.44%) Puppet
5 1 (2.44%) Salt
5 1 (2.44%) Single Sign-On
Vendors
1 6 (14.63%) Google
2 3 (7.32%) Criteo
2 3 (7.32%) Facebook
3 2 (4.88%) Sybase
4 1 (2.44%) Greenplum
4 1 (2.44%) IBM
4 1 (2.44%) Oracle
4 1 (2.44%) SaltStack