Period
to 8 April 2020

The following table provides summary statistics for contract job vacancies advertised in England with a requirement for Kotlin skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Kotlin over the 6 months to 8 April 2020 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.

JetBrains Kotlin
UK > England
6 months to
8 Apr 2020
Same period 2019 Same period 2018
Rank 308 515 632
Rank change year-on-year +207 +117 +182
Contract jobs citing Kotlin 434 364 239
As % of all contract jobs advertised in England 0.79% 0.41% 0.26%
As % of the Programming Languages category 1.93% 0.95% 0.59%
Number of daily rates quoted 325 285 202
Median daily rate £500 £525 £500
Median daily rate % change year-on-year -4.76% +5.00% -20.00%
10th Percentile £375 £400 £363
90th Percentile £713 £675 £626
UK median daily rate £500 £500 £494
% change year-on-year - +1.27% -21.00%
Number of hourly rates quoted 12 3 1
Median hourly rate £61.50 £62.30 £25.00
Median hourly rate % change year-on-year -1.28% +149.20% -
10th Percentile £44.43 £54.60 £24.50
90th Percentile £68.93 £66.64 £25.50
UK median hourly rate £61.50 £62.30 £25.00
% change year-on-year -1.28% +149.20% -

Kotlin is in the Programming Languages category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in England with a requirement for coding skills.

All Programming Languages
England
Contract vacancies with a requirement for coding skills 22,454 38,501 40,322
As % of all contract IT jobs advertised in England 40.95% 43.44% 43.19%
Number of daily rates quoted 15,357 27,139 28,420
Median daily rate £500 £480 £475
Median daily rate % change year-on-year +4.17% +1.05% +8.57%
10th Percentile £325 £325 £313
90th Percentile £656 £650 £638
UK median daily rate £481 £475 £463
% change year-on-year +1.36% +2.70% +8.82%
Number of hourly rates quoted 502 613 729
Median hourly rate £40.00 £42.50 £40.00
Median hourly rate % change year-on-year -5.88% +6.25% -
10th Percentile £17.83 £18.00 £17.39
90th Percentile £55.00 £53.75 £51.05
Median hourly rate £40.00 £42.50 £40.00
% change year-on-year -5.88% +6.25% -

Kotlin
Job Vacancy Trend in England

Job postings citing Kotlin as a proportion of all IT jobs advertised in England.

Job vacancy trend for Kotlin in England

Kotlin
Contractor Daily Rate Trend in England

3-month moving average daily rate quoted in jobs citing Kotlin in England.

Daily rate trend for Kotlin in England

Kotlin
Daily Rate Histogram in England

Daily rate distribution for jobs citing Kotlin in England over the 6 months to 8 April 2020.

Daily rate histogram for Kotlin in England

Kotlin
Contractor Hourly Rate Trend in England

3-month moving average hourly rates quoted in jobs citing Kotlin in England.

Hourly rate trend for Kotlin in England

Kotlin
Hourly Rate Histogram in England

Hourly rate distribution of jobs citing Kotlin in England over the 6 months to 8 April 2020.

Hourly rate histogram for Kotlin in England

Kotlin
Contract Job Locations in England

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Kotlin within the England region over the 6 months to 8 April 2020. 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
London +145 314 £550 - 92
North of England +115 65 £475 +13.43% 19
Yorkshire +82 39 £475 +11.76% 6
South East +111 36 £425 -5.56% 34
North West +43 16 £450 +12.50% 10
North East - 10 £363 - 3
South West +42 8 £465 -25.60% 5
East of England +39 6 £430 -9.47% 6
Midlands +56 1 - - 6
West Midlands - 1 - - 2
Kotlin
UK

For the 6 months to 8 April 2020, IT contractor jobs citing Kotlin 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 England region with a requirement for Kotlin.

1 301 (69.35%) Java
2 234 (53.92%) Android
3 184 (42.40%) Android Development
4 180 (41.47%) Agile Software Development
5 117 (26.96%) Software Engineering
6 96 (22.12%) TDD
7 94 (21.66%) Mobile App
8 89 (20.51%) Banking
9 87 (20.05%) Microservices
10 83 (19.12%) Finance
11 81 (18.66%) Git (software)
11 81 (18.66%) AWS
12 79 (18.20%) RESTful
13 78 (17.97%) Apple iOS
14 74 (17.05%) JavaScript
14 74 (17.05%) RxJava
15 71 (16.36%) Azure
16 68 (15.67%) Scala
16 68 (15.67%) Spring
16 68 (15.67%) Web Services
17 60 (13.82%) GCP
18 58 (13.36%) Jenkins
19 56 (12.90%) Apple Swift
20 53 (12.21%) User Experience
20 53 (12.21%) Open Source
21 52 (11.98%) SQL
21 52 (11.98%) Continuous Integration
22 51 (11.75%) Google
22 51 (11.75%) Scrum
22 51 (11.75%) React

Kotlin
Co-occurring IT Skills in England 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 14 (3.23%) Apache Spark
1 14 (3.23%) WebLogic
1 14 (3.23%) WebSphere
2 11 (2.53%) Confluence
3 8 (1.84%) OpenStack
4 6 (1.38%) Cloud Foundry
5 3 (0.69%) nginx
6 2 (0.46%) Elasticsearch
Applications
1 3 (0.69%) InVision
1 3 (0.69%) Sketch
2 1 (0.23%) Zeplin
Business Applications
1 27 (6.22%) FINCAD Analytics
2 6 (1.38%) R3 Corda
3 1 (0.23%) Payment Gateway
Cloud Services
1 81 (18.66%) AWS
2 71 (16.36%) Azure
3 60 (13.82%) GCP
4 47 (10.83%) GitHub
5 27 (6.22%) AWS Step Functions
6 18 (4.15%) Amazon SQS
7 15 (3.46%) Amazon ECS
8 10 (2.30%) Serverless
9 8 (1.84%) Amazon Kinesis
9 8 (1.84%) AWS Lambda
10 6 (1.38%) Firebase
10 6 (1.38%) Google Play
10 6 (1.38%) Slack
11 4 (0.92%) Amazon EC2
11 4 (0.92%) Amazon S3
12 3 (0.69%) SaaS
13 2 (0.46%) Amazon ELB
13 2 (0.46%) BrowserStack
13 2 (0.46%) Heroku
14 1 (0.23%) Trello
Communications & Networking
1 23 (5.30%) HTTP
2 11 (2.53%) HTTPS
3 5 (1.15%) SSL
4 2 (0.46%) Bluetooth
4 2 (0.46%) DNS
5 1 (0.23%) Internet
5 1 (0.23%) NFC
Database & Business Intelligence
1 50 (11.52%) NoSQL
2 42 (9.68%) MongoDB
3 37 (8.53%) Apache Cassandra
4 36 (8.29%) PostgreSQL
5 35 (8.06%) HBase
6 29 (6.68%) Redis
6 29 (6.68%) Relational Database
7 27 (6.22%) Amazon Athena
7 27 (6.22%) Amazon DynamoDB
7 27 (6.22%) Couchbase
7 27 (6.22%) DB2
7 27 (6.22%) MariaDB
7 27 (6.22%) Neo4j
7 27 (6.22%) RDBMS
8 21 (4.84%) Amazon Aurora
9 15 (3.46%) Amazon Redshift
10 13 (3.00%) SQLite
11 12 (2.76%) MySQL
12 8 (1.84%) Apache Hive
12 8 (1.84%) Hadoop
Development Applications
1 81 (18.66%) Git (software)
2 58 (13.36%) Jenkins
3 49 (11.29%) JUnit
4 42 (9.68%) Gradle
5 41 (9.45%) Android Studio
6 30 (6.91%) git-flow
7 29 (6.68%) Mockito
8 25 (5.76%) JIRA
9 19 (4.38%) Ant
9 19 (4.38%) Maven
10 16 (3.69%) Cucumber
11 15 (3.46%) JMeter
12 12 (2.76%) Xcode
13 8 (1.84%) CircleCI
13 8 (1.84%) Selenium
14 7 (1.61%) CocoaPods
14 7 (1.61%) Gatling
14 7 (1.61%) GitLab
15 6 (1.38%) Calabash
15 6 (1.38%) TeamCity
General
1 89 (20.51%) Banking
2 83 (19.12%) Finance
3 48 (11.06%) Front Office
4 16 (3.69%) Investment Banking
5 12 (2.76%) Public Sector
6 11 (2.53%) Games
7 9 (2.07%) Marketing
8 8 (1.84%) Telecoms
9 7 (1.61%) Automotive
10 6 (1.38%) Advertising
10 6 (1.38%) Retail
11 5 (1.15%) Electronics
11 5 (1.15%) Publishing
12 3 (0.69%) Financial Institution
12 3 (0.69%) Manufacturing
12 3 (0.69%) Retail Banking
13 2 (0.46%) Back Office
13 2 (0.46%) Local Government
14 1 (0.23%) Aerospace
14 1 (0.23%) Pharmaceutical
Job Titles
1 314 (72.35%) Developer
2 169 (38.94%) Android Developer
3 76 (17.51%) Senior Developer
4 58 (13.36%) Java Developer
5 37 (8.53%) Senior Android Developer
6 33 (7.60%) Java Engineer
7 30 (6.91%) Software Engineer
8 22 (5.07%) AWS Developer
8 22 (5.07%) Mobile Developer
9 21 (4.84%) iOS Developer
10 19 (4.38%) Android Engineer
11 18 (4.15%) Front Office Developer
12 17 (3.92%) Java Software Engineer
12 17 (3.92%) React Developer
12 17 (3.92%) Senior Java Developer
13 16 (3.69%) AWS Engineer
14 15 (3.46%) Scala Developer
15 14 (3.23%) Full Stack Developer
16 13 (3.00%) NoSQL Developer
16 13 (3.00%) NoSQL Engineer
Libraries, Frameworks & Software Standards
1 79 (18.20%) RESTful
2 74 (17.05%) RxJava
3 68 (15.67%) Spring
3 68 (15.67%) Web Services
4 51 (11.75%) React
5 50 (11.52%) Node.js
6 48 (11.06%) J2EE
7 45 (10.37%) Android SDK
8 39 (8.99%) JSON
9 38 (8.76%) HTML
10 37 (8.53%) CSS
10 37 (8.53%) Kafka
11 34 (7.83%) REST
12 33 (7.60%) Spring Boot
13 31 (7.14%) Dagger
14 29 (6.68%) AngularJS
14 29 (6.68%) Retrofit
15 26 (5.99%) HTML5
16 24 (5.53%) XML
17 22 (5.07%) Redux
Miscellaneous
1 94 (21.66%) Mobile App
2 53 (12.21%) User Experience
3 48 (11.06%) Foreign Exchange (FX)
4 45 (10.37%) Fixed Income
5 44 (10.14%) Greenfield Project
6 42 (9.68%) Derivative
6 42 (9.68%) Hedge funds
7 27 (6.22%) Equity Derivative
8 21 (4.84%) Equities
8 21 (4.84%) Market Risk
9 19 (4.38%) Data Structures
10 18 (4.15%) Mobile Payment
11 16 (3.69%) Enterprise Software
12 15 (3.46%) Blog
13 12 (2.76%) Analytical Skills
13 12 (2.76%) Self-Motivation
14 8 (1.84%) Public Cloud
15 6 (1.38%) Grid Computing
16 5 (1.15%) Algorithms
16 5 (1.15%) Mobile Banking
Operating Systems
1 234 (53.92%) Android
2 78 (17.97%) Apple iOS
3 12 (2.76%) Linux
4 2 (0.46%) Unix
5 1 (0.23%) Mac OS
5 1 (0.23%) Mac OS X
5 1 (0.23%) Windows
Processes & Methodologies
1 184 (42.40%) Android Development
2 180 (41.47%) Agile Software Development
3 117 (26.96%) Software Engineering
4 96 (22.12%) TDD
5 87 (20.05%) Microservices
6 53 (12.21%) Open Source
7 52 (11.98%) Continuous Integration
8 51 (11.75%) Scrum
9 46 (10.60%) Mobile Development
10 43 (9.91%) MVVM
11 42 (9.68%) Asset Management
12 41 (9.45%) Pair Programming
13 40 (9.22%) Analytics
13 40 (9.22%) DevOps
14 39 (8.99%) BDD
14 39 (8.99%) Fintech
15 37 (8.53%) Test Automation
16 35 (8.06%) SDLC
17 31 (7.14%) Computer Science
18 29 (6.68%) OO
Programming Languages
1 301 (69.35%) Java
2 74 (17.05%) JavaScript
3 68 (15.67%) Scala
4 56 (12.90%) Apple Swift
5 52 (11.98%) SQL
6 49 (11.29%) Python
7 27 (6.22%) Objective-C
8 22 (5.07%) Java 8
9 16 (3.69%) C#
10 15 (3.46%) Bash Shell
11 14 (3.23%) TypeScript
12 11 (2.53%) Go
13 9 (2.07%) Ruby
14 8 (1.84%) C++
14 8 (1.84%) Perl
15 7 (1.61%) C
15 7 (1.61%) Haskell
16 6 (1.38%) Clojure
17 4 (0.92%) ES6
18 3 (0.69%) Groovy
Qualifications
1 20 (4.61%) Degree
2 14 (3.23%) Computer Science Degree
3 3 (0.69%) BPSS Clearance
4 2 (0.46%) ISTQB
4 2 (0.46%) ISTQB Foundation Certification
4 2 (0.46%) Master's Degree
4 2 (0.46%) MCSE
4 2 (0.46%) Microsoft Certification
4 2 (0.46%) Security Cleared
5 1 (0.23%) ISTQB Advanced Certification
5 1 (0.23%) SANS
5 1 (0.23%) SC Cleared
Quality Assurance & Compliance
1 5 (1.15%) QA
2 2 (0.46%) WCAG
3 1 (0.23%) PCI DSS
System Software
1 43 (9.91%) Docker
2 8 (1.84%) HDFS
3 2 (0.46%) Active Directory
4 1 (0.23%) Firmware
4 1 (0.23%) Virtual Machines
4 1 (0.23%) VMware Infrastructure
Systems Management
1 38 (8.76%) Kubernetes
2 23 (5.30%) Terraform
3 13 (3.00%) Prometheus
4 8 (1.84%) Hadoop YARN
5 6 (1.38%) Grafana
6 5 (1.15%) Zipkin
7 4 (0.92%) HockeyApp
8 3 (0.69%) Ansible
9 2 (0.46%) Opscode Chef
10 1 (0.23%) Graphite
10 1 (0.23%) Nessus
10 1 (0.23%) Puppet
10 1 (0.23%) Rancher
Vendors
1 51 (11.75%) Google
2 33 (7.60%) Oracle
3 27 (6.22%) Sybase
4 10 (2.30%) CA
4 10 (2.30%) CA Agile Central
5 8 (1.84%) Tableau
6 5 (1.15%) Facebook
6 5 (1.15%) Perforce
7 4 (0.92%) AppDynamics
7 4 (0.92%) Microsoft
7 4 (0.92%) Splunk
8 3 (0.69%) Apple
8 3 (0.69%) Salesforce.com
8 3 (0.69%) SAP
8 3 (0.69%) VMware
8 3 (0.69%) Xamarin
9 2 (0.46%) SaltStack
10 1 (0.23%) Adobe
10 1 (0.23%) Capita
10 1 (0.23%) IBM