Period
to 24 September 2021

The following table provides summary statistics for contract job vacancies 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 24 September 2021 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
UK
6 months to
24 Sep 2021
Same period 2020 Same period 2019
Rank 459 417 475
Rank change year-on-year -42 +58 -152
Contract jobs citing Apache Cassandra 376 104 414
As % of all contract jobs advertised in the UK 0.47% 0.35% 0.47%
As % of the Database & Business Intelligence category 2.16% 1.53% 2.12%
Number of daily rates quoted 196 57 317
10th Percentile £425 £413 £425
25th Percentile £463 £463 £495
Median daily rate (50th Percentile) £563 £550 £575
Median % change year-on-year +2.27% -4.35% +9.52%
75th Percentile £636 £625 £650
90th Percentile £675 £665 £725
UK excluding London median daily rate £469 £470 £481
% change year-on-year -0.27% -2.34% -3.31%

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 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 17,371 6,792 19,516
As % of all contract IT jobs advertised in the UK 21.60% 22.84% 22.03%
Number of daily rates quoted 12,072 4,675 13,416
10th Percentile £350 £313 £320
25th Percentile £419 £400 £400
Median daily rate (50th Percentile) £520 £500 £475
Median % change year-on-year +4.00% +5.26% +0.53%
75th Percentile £623 £600 £575
90th Percentile £713 £675 £650
UK excluding London median daily rate £450 £450 £438
% change year-on-year - +2.86% +2.94%
Number of hourly rates quoted 229 115 253
10th Percentile £13.50 £12.63 £12.25
25th Percentile £20.45 £17.23 £17.00
Median hourly rate £32.00 £23.00 £30.00
Median % change year-on-year +39.13% -23.33% +13.42%
75th Percentile £53.38 £41.13 £50.00
90th Percentile £65.50 £53.90 £60.00
UK excluding London median hourly rate £27.73 £21.16 £30.00
% change year-on-year +31.08% -29.48% +22.45%

Apache Cassandra
Job Vacancy Trend

Job postings citing Apache Cassandra as a proportion of all IT jobs advertised.

Job vacancy trend for Apache Cassandra in the UK

Apache Cassandra
Contractor Daily Rate Trend

3-month moving average daily rate quoted in jobs citing Apache Cassandra.

Daily rate trend for Apache Cassandra in the UK

Apache Cassandra
Daily Rate Histogram

Daily rate distribution for jobs citing Apache Cassandra over the 6 months to 24 September 2021.

Daily rate histogram for Apache Cassandra in the UK

Apache Cassandra
Contractor Hourly Rate Trend

3-month moving average hourly rates quoted in jobs citing Apache Cassandra.

Hourly rate trend for Apache Cassandra in the UK

Apache Cassandra
Top 16 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Apache Cassandra within the UK over the 6 months to 24 September 2021. 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 -27 320 £570 +3.64% 76
London -54 238 £570 -0.87% 50
Work from Home -187 86 £495 +5.32% 13
UK excluding London -132 50 £469 -0.27% 33
South East -81 15 £450 -4.26% 4
South West -39 11 £638 +54.55% 2
North of England -76 10 £488 -11.36% 11
North West -45 7 £488 -18.75% 9
Midlands - 6 £500 - 5
East of England - 4 £775 - 3
West Midlands - 4 £500 - 3
Yorkshire -51 3 - - 2
East Midlands - 2 £525 - 2
Scotland - 2 £425 - 2
Wales - 1 - - 5
Northern Ireland - 1 - - 1

For the 6 months to 24 September 2021, 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 with a requirement for Apache Cassandra.

1 214 (56.91%) Kafka
2 200 (53.19%) Java
3 180 (47.87%) NoSQL
4 151 (40.16%) Microservices
5 150 (39.89%) Agile Software Development
6 145 (38.56%) SQL
7 136 (36.17%) AWS
8 123 (32.71%) MongoDB
9 122 (32.45%) Docker
9 122 (32.45%) Python
10 121 (32.18%) Kubernetes
11 105 (27.93%) Scala
12 99 (26.33%) Apache Spark
13 98 (26.06%) Analytics
13 98 (26.06%) MySQL
14 96 (25.53%) Git (software)
15 88 (23.40%) Hadoop
16 86 (22.87%) Linux
17 84 (22.34%) Spring
18 81 (21.54%) Jenkins
19 76 (20.21%) DevOps
20 75 (19.95%) Social Skills
21 74 (19.68%) Big Data
22 72 (19.15%) REST
23 71 (18.88%) Azure
23 71 (18.88%) Relational Database
24 70 (18.62%) TDD
24 70 (18.62%) PostgreSQL
25 68 (18.09%) GCP
25 68 (18.09%) Data Pipeline

Apache Cassandra
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 99 (26.33%) Apache Spark
2 29 (7.71%) Apache
3 28 (7.45%) Apache Airflow
4 26 (6.91%) Elasticsearch
5 23 (6.12%) Luigi
6 19 (5.05%) Tomcat
7 12 (3.19%) nginx
8 9 (2.39%) Confluence
8 9 (2.39%) GemFire
9 6 (1.60%) Apache Pulsar
9 6 (1.60%) Apache Solr
10 3 (0.80%) Cloud Foundry
10 3 (0.80%) GeoServer
10 3 (0.80%) JBoss
10 3 (0.80%) Oracle Coherence
11 2 (0.53%) IBM Domino
11 2 (0.53%) IIS
11 2 (0.53%) Oracle SOA Suite
11 2 (0.53%) SAS
11 2 (0.53%) WebSphere
Applications
1 1 (0.27%) SPSS
1 1 (0.27%) SPSS Modeler
Business Applications
1 1 (0.27%) Unica
Cloud Services
1 136 (36.17%) AWS
2 71 (18.88%) Azure
3 68 (18.09%) GCP
4 37 (9.84%) Serverless
5 29 (7.71%) GitHub
6 20 (5.32%) Azure Functions
7 19 (5.05%) Azure Cosmos DB
8 14 (3.72%) AWS Lambda
9 13 (3.46%) Apigee
10 12 (3.19%) Amazon S3
10 12 (3.19%) AWS CloudFormation
11 10 (2.66%) Datadog
11 10 (2.66%) OpenShift
12 9 (2.39%) Amazon EC2
12 9 (2.39%) Amazon EMR
13 8 (2.13%) Akamai
13 8 (2.13%) Azure Active Directory
14 7 (1.86%) Collibra
14 7 (1.86%) PaaS
15 6 (1.60%) Power Platform
Communications & Networking
1 30 (7.98%) HTTP
2 5 (1.33%) SAN
3 4 (1.06%) Firewall
3 4 (1.06%) VPN
4 3 (0.80%) DNS
4 3 (0.80%) Internet
4 3 (0.80%) TCP/IP
5 2 (0.53%) AMQP
5 2 (0.53%) Modbus
5 2 (0.53%) MQTT
5 2 (0.53%) Profibus
6 1 (0.27%) FTP
6 1 (0.27%) Network Security
6 1 (0.27%) SSL
6 1 (0.27%) Wireless
Database & Business Intelligence
1 180 (47.87%) NoSQL
2 123 (32.71%) MongoDB
3 98 (26.06%) MySQL
4 88 (23.40%) Hadoop
5 74 (19.68%) Big Data
6 71 (18.88%) Relational Database
7 70 (18.62%) PostgreSQL
8 58 (15.43%) Redis
9 57 (15.16%) HBase
10 37 (9.84%) RDBMS
11 32 (8.51%) Flink
12 24 (6.38%) Apache Hive
13 22 (5.85%) Data Warehouse
14 21 (5.59%) Azkaban
15 18 (4.79%) DataStax
15 18 (4.79%) Spark SQL
16 15 (3.99%) BigQuery
16 15 (3.99%) Tableau
17 13 (3.46%) Amazon DynamoDB
17 13 (3.46%) Metadata
Development Applications
1 96 (25.53%) Git (software)
2 81 (21.54%) Jenkins
3 47 (12.50%) GitLab
4 46 (12.23%) Maven
5 36 (9.57%) JUnit
6 21 (5.59%) Gradle
6 21 (5.59%) Jasmine
6 21 (5.59%) Mockito
7 18 (4.79%) Gatling
8 17 (4.52%) JIRA
9 15 (3.99%) Subversion
10 13 (3.46%) Cucumber
11 11 (2.93%) Bitbucket
11 11 (2.93%) JMeter
12 9 (2.39%) Mocha
12 9 (2.39%) Selenium
13 7 (1.86%) GoCD
13 7 (1.86%) Karma Test Runner
14 5 (1.33%) LoadRunner
14 5 (1.33%) Sinon.JS
General
1 75 (19.95%) Social Skills
2 57 (15.16%) Finance
3 44 (11.70%) Banking
4 26 (6.91%) Analytical Skills
4 26 (6.91%) Investment Banking
5 18 (4.79%) Presentation Skills
6 17 (4.52%) Marketing
7 11 (2.93%) Front Office
8 10 (2.66%) Public Sector
9 7 (1.86%) Documentation Skills
10 5 (1.33%) Aerospace
10 5 (1.33%) Games
10 5 (1.33%) Telecoms
11 3 (0.80%) Advertising
11 3 (0.80%) French Language
12 2 (0.53%) Back Office
12 2 (0.53%) Financial Institution
12 2 (0.53%) Manufacturing
13 1 (0.27%) Automotive
13 1 (0.27%) Electronics
Job Titles
1 146 (38.83%) Developer
2 71 (18.88%) Java Developer
3 65 (17.29%) Data Engineer
4 38 (10.11%) Scala Developer
4 38 (10.11%) Senior Developer
5 35 (9.31%) Architect
6 28 (7.45%) Senior Java Developer
7 21 (5.59%) Software Engineer
8 18 (4.79%) Site Engineer
8 18 (4.79%) Site Reliability Engineer
9 16 (4.26%) AWS Engineer
10 15 (3.99%) DevOps Engineer
11 14 (3.72%) Azure Engineer
11 14 (3.72%) Full Stack Developer
12 13 (3.46%) Java Engineer
13 10 (2.66%) Data Architect
13 10 (2.66%) Data Manager
13 10 (2.66%) Platform Manager
13 10 (2.66%) Senior Java Engineer
13 10 (2.66%) Senior Software Engineer
Libraries, Frameworks & Software Standards
1 214 (56.91%) Kafka
2 84 (22.34%) Spring
3 72 (19.15%) REST
4 52 (13.83%) Node.js
5 51 (13.56%) Spring Boot
6 41 (10.90%) Akka
7 38 (10.11%) React
7 38 (10.11%) Spark Streaming
8 36 (9.57%) Web Services
9 32 (8.51%) AngularJS
10 31 (8.24%) RESTful
11 27 (7.18%) CSS
11 27 (7.18%) HTML
12 26 (6.91%) Hibernate
13 22 (5.85%) ARM Templates
14 21 (5.59%) jQuery
14 21 (5.59%) Scalaz
15 19 (5.05%) Spring MVC
16 15 (3.99%) Redux
16 15 (3.99%) XML
Miscellaneous
1 30 (7.98%) Data Structures
2 22 (5.85%) Algorithms
3 20 (5.32%) Management Information System
4 14 (3.72%) Data Centre
5 10 (2.66%) Cloud Native
5 10 (2.66%) N-Tier
6 8 (2.13%) Self-Motivation
7 6 (1.60%) Public Cloud
8 5 (1.33%) iPad
9 4 (1.06%) Clustering
9 4 (1.06%) User Experience
10 3 (0.80%) Data Protection Act
10 3 (0.80%) Online Games
11 2 (0.53%) Distributed Denial-of-Service
11 2 (0.53%) Enterprise Software
11 2 (0.53%) Industrial Internet of Things
11 2 (0.53%) Industry 4.0
11 2 (0.53%) Mobile App
11 2 (0.53%) Replication
11 2 (0.53%) Virtual Team
Operating Systems
1 86 (22.87%) Linux
2 20 (5.32%) Unix
3 18 (4.79%) Red Hat Enterprise Linux
4 4 (1.06%) Ubuntu
5 3 (0.80%) Android
5 3 (0.80%) Apple iOS
6 2 (0.53%) CentOS
6 2 (0.53%) VMS
6 2 (0.53%) Windows
7 1 (0.27%) CoreOS
7 1 (0.27%) DC/OS
7 1 (0.27%) Mesosphere
Processes & Methodologies
1 151 (40.16%) Microservices
2 150 (39.89%) Agile Software Development
3 98 (26.06%) Analytics
4 76 (20.21%) DevOps
5 70 (18.62%) TDD
6 68 (18.09%) Data Pipeline
7 58 (15.43%) Test Automation
8 57 (15.16%) Software Engineering
9 56 (14.89%) OO
10 48 (12.77%) Data Modelling
10 48 (12.77%) Machine Learning
11 46 (12.23%) Open Source
12 45 (11.97%) Computer Science
13 40 (10.64%) Problem-Solving
14 35 (9.31%) Data Engineering
14 35 (9.31%) Scrum
15 32 (8.51%) Kanban
15 32 (8.51%) Workflow
16 31 (8.24%) Full Stack Development
17 30 (7.98%) E-Commerce
Programming Languages
1 200 (53.19%) Java
2 145 (38.56%) SQL
3 122 (32.45%) Python
4 105 (27.93%) Scala
5 59 (15.69%) JavaScript
6 40 (10.64%) Bash Shell
7 32 (8.51%) Go
8 19 (5.05%) Java 8
9 18 (4.79%) C++
10 16 (4.26%) PHP
11 14 (3.72%) C
11 14 (3.72%) TypeScript
12 13 (3.46%) CQL
12 13 (3.46%) Perl
13 9 (2.39%) Ruby
14 8 (2.13%) PowerShell
15 6 (1.60%) Groovy
16 5 (1.33%) Kotlin
16 5 (1.33%) R
17 4 (1.06%) Java 11
Qualifications
1 48 (12.77%) Degree
2 37 (9.84%) Computer Science Degree
3 11 (2.93%) Security Cleared
4 9 (2.39%) Master's Degree
5 7 (1.86%) BPSS Clearance
5 7 (1.86%) SC Cleared
6 4 (1.06%) AWS Certification
7 1 (0.27%) MCSE
7 1 (0.27%) Microsoft Certification
7 1 (0.27%) Sun Certification
Quality Assurance & Compliance
1 28 (7.45%) Data Quality
2 7 (1.86%) QA
3 4 (1.06%) SLA
4 1 (0.27%) GDPR
System Software
1 122 (32.45%) Docker
2 14 (3.72%) HDFS
3 7 (1.86%) Apache Flume
3 7 (1.86%) Apache ZooKeeper
4 6 (1.60%) Active Directory
5 2 (0.53%) Platform Symphony
5 2 (0.53%) VMware Infrastructure
Systems Management
1 121 (32.18%) Kubernetes
2 62 (16.49%) Ansible
3 59 (15.69%) Terraform
4 36 (9.57%) Prometheus
5 34 (9.04%) Grafana
6 16 (4.26%) Puppet
7 12 (3.19%) Kibana
8 9 (2.39%) Graphite
8 9 (2.39%) logstash
9 8 (2.13%) Istio
10 6 (1.60%) Oozie
11 5 (1.33%) ZABBIX
12 4 (1.06%) Mesos
12 4 (1.06%) Opscode Chef
13 2 (0.53%) Docker Swarm
13 2 (0.53%) Rancher
14 1 (0.27%) Amdocs OSS
14 1 (0.27%) Fluentd
14 1 (0.27%) Marathon
14 1 (0.27%) Packer
Vendors
1 41 (10.90%) Oracle
2 23 (6.12%) Databricks
3 21 (5.59%) Google
4 19 (5.05%) Red Hat
5 14 (3.72%) Microsoft
6 12 (3.19%) Salesforce.com
7 11 (2.93%) Cloudera
8 10 (2.66%) Ab Initio
8 10 (2.66%) Atlassian
8 10 (2.66%) MapR
9 7 (1.86%) IBM
9 7 (1.86%) Twitter
10 6 (1.60%) SAP
10 6 (1.60%) VMware
11 5 (1.33%) 3PAR
11 5 (1.33%) HP
11 5 (1.33%) SOASTA, Inc
12 4 (1.06%) Dell
12 4 (1.06%) MuleSoft
13 3 (0.80%) TIBCO