Period
to 14 October 2019

The following table provides summary statistics for permanent job vacancies with a requirement for Kotlin skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Kotlin over the 6 months to 14 October 2019 with a comparison to the same period in the previous 2 years.

JetBrains Kotlin
UK
6 months to
14 Oct 2019
Same period 2018 Same period 2017
Rank 387 628 1006
Rank change year-on-year +241 +378 +209
Permanent jobs citing Kotlin 1,020 624 178
As % of all permanent IT jobs advertised in the UK 0.74% 0.38% 0.10%
As % of the Programming Languages category 1.39% 0.69% 0.19%
Number of salaries quoted 881 498 164
UK median annual salary £65,000 £65,000 £67,500
Median salary % change year-on-year - -3.70% -15.63%
10th Percentile £37,500 £38,250 £44,125
90th Percentile £95,000 £100,000 £100,000
UK excluding London median annual salary £52,500 £55,000 £55,000
% change year-on-year -4.55% - +69.23%

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

All Programming Languages
UK
Permanent vacancies with a requirement for coding skills 73,569 90,803 96,106
As % of all permanent IT jobs advertised in the UK 53.43% 55.57% 55.32%
Number of salaries quoted 60,294 75,547 78,834
UK median annual salary £52,500 £50,000 £48,000
Median salary % change year-on-year +5.00% +4.17% +1.05%
10th Percentile £31,250 £31,190 £29,000
90th Percentile £86,250 £82,500 £77,500
UK excluding London median annual salary £45,000 £45,000 £42,500
% change year-on-year - +5.88% +4.94%

Kotlin
Job Vacancy Trend

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

Job vacancy trend for Kotlin in the UK

Kotlin
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Kotlin.

Salary trend for Kotlin in the UK

Kotlin
Salary Histogram

The salary distribution of IT jobs citing Kotlin over the 6 months to 14 October 2019.

Salary histogram for Kotlin in the UK

Kotlin
Top 15 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Kotlin within the UK over the 6 months to 14 October 2019. 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +218 959 £67,500 - 251
London +167 626 £72,500 +3.57% 164
UK excluding London +190 388 £52,500 -4.55% 98
North of England +76 125 £52,500 +10.53% 29
South East +90 102 £55,000 -24.14% 20
Yorkshire +25 72 £50,000 -9.09% 14
Scotland +50 54 £47,500 -9.52% 10
North West +50 53 £60,000 +69.01% 12
Midlands +74 51 £50,000 +48.15% 12
East of England +58 45 £55,000 - 16
West Midlands +54 29 £51,500 +52.59% 2
East Midlands - 22 £50,000 - 10
South West +3 19 £65,000 +18.18% 10
Wales - 2 £35,000 -
Northern Ireland -7 1 £40,000 +3.23% 1

For the 6 months to 14 October 2019, IT 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 permanent job ads with a requirement for Kotlin.

1 802 (78.63%) Java
2 532 (52.16%) Android
3 419 (41.08%) Android Development
4 398 (39.02%) Agile Software Development
5 252 (24.71%) Software Engineering
6 243 (23.82%) TDD
7 241 (23.63%) Mobile App
8 229 (22.45%) Microservices
9 226 (22.16%) Kubernetes
10 221 (21.67%) Docker
11 220 (21.57%) Apple iOS
12 209 (20.49%) Mobile Development
13 207 (20.29%) DevOps
14 206 (20.20%) Fintech
15 184 (18.04%) Python
15 184 (18.04%) AWS
16 172 (16.86%) Finance
16 172 (16.86%) Spring
17 164 (16.08%) Banking
17 164 (16.08%) JavaScript
18 161 (15.78%) Continuous Integration
19 160 (15.69%) Git (software)
20 155 (15.20%) BDD
21 140 (13.73%) Spring Boot
22 134 (13.14%) REST
23 130 (12.75%) Apple Swift
24 123 (12.06%) C#
25 120 (11.76%) React
26 117 (11.47%) Mentoring
27 115 (11.27%) iOS Development

Kotlin
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 42 (4.12%) Elasticsearch
2 30 (2.94%) Confluence
3 17 (1.67%) Apache Spark
4 14 (1.37%) Apache
5 10 (0.98%) CMS
6 9 (0.88%) Sitecore CMS
7 7 (0.69%) nginx
8 6 (0.59%) Drupal
8 6 (0.59%) SugarCRM
8 6 (0.59%) WordPress
9 5 (0.49%) Tomcat
10 4 (0.39%) Apache Airflow
10 4 (0.39%) Apache Solr
10 4 (0.39%) Cloud Foundry
11 3 (0.29%) Luigi
12 2 (0.20%) WebSphere
12 2 (0.20%) WebSphere Application Server
13 1 (0.098%) JBoss
13 1 (0.098%) Oracle Application Server
13 1 (0.098%) WebLogic
Applications
1 4 (0.39%) Zeplin
2 3 (0.29%) Sketch
3 1 (0.098%) Adobe Illustrator
3 1 (0.098%) Adobe XD
3 1 (0.098%) MS Visio
Business Applications
1 14 (1.37%) FINCAD Analytics
2 12 (1.18%) Distributed Ledger
3 3 (0.29%) Magento
4 2 (0.20%) R3 Corda
4 2 (0.20%) SAP Hybris
Cloud Services
1 184 (18.04%) AWS
2 91 (8.92%) Azure
3 80 (7.84%) GCP
4 52 (5.10%) GitHub
5 40 (3.92%) Firebase
6 30 (2.94%) Google Play
7 27 (2.65%) SaaS
8 21 (2.06%) Serverless
9 18 (1.76%) Heroku
10 17 (1.67%) Amazon ECS
11 16 (1.57%) AWS Fargate
12 12 (1.18%) Amazon EC2
13 10 (0.98%) SonarCloud
14 9 (0.88%) AWS Lambda
15 8 (0.78%) Slack
16 7 (0.69%) Amazon S3
17 6 (0.59%) Amazon Kinesis
17 6 (0.59%) Amazon SQS
18 5 (0.49%) AWS CloudFormation
18 5 (0.49%) Google Analytics
Communications & Networking
1 22 (2.16%) Bluetooth
2 12 (1.18%) HTTP
3 9 (0.88%) VPN
4 8 (0.78%) Wireless
5 7 (0.69%) Internet
5 7 (0.69%) RFID
6 4 (0.39%) HTTPS
6 4 (0.39%) SSL
7 2 (0.20%) 5G
7 2 (0.20%) NFC
Database & Business Intelligence
1 61 (5.98%) MySQL
1 61 (5.98%) PostgreSQL
2 45 (4.41%) Blockchain
3 35 (3.43%) Big Data
3 35 (3.43%) NoSQL
4 34 (3.33%) MongoDB
5 32 (3.14%) Redis
6 29 (2.84%) Relational Database
7 20 (1.96%) Amazon DynamoDB
8 15 (1.47%) Amazon Athena
9 14 (1.37%) Apache Cassandra
9 14 (1.37%) Hadoop
10 12 (1.18%) MariaDB
11 9 (0.88%) Apache Hive
11 9 (0.88%) SQL Server
12 8 (0.78%) BigQuery
13 6 (0.59%) Amazon RDS
13 6 (0.59%) RDBMS
14 4 (0.39%) Bigtable
14 4 (0.39%) NewSQL
Development Applications
1 160 (15.69%) Git (software)
2 107 (10.49%) Jenkins
3 48 (4.71%) Android Studio
3 48 (4.71%) JIRA
4 41 (4.02%) JUnit
5 37 (3.63%) Bitbucket
6 36 (3.53%) Mockito
7 34 (3.33%) Gradle
8 29 (2.84%) Crashlytics
9 23 (2.25%) CircleCI
10 17 (1.67%) Appium
10 17 (1.67%) Cucumber
11 16 (1.57%) Maven
12 15 (1.47%) git-flow
13 14 (1.37%) RSpec
14 12 (1.18%) GitLab
14 12 (1.18%) Katalon Studio
14 12 (1.18%) SoapUI
15 9 (0.88%) Subversion
16 8 (0.78%) Xcode
General
1 172 (16.86%) Finance
2 164 (16.08%) Banking
3 75 (7.35%) Retail
4 45 (4.41%) Games
5 25 (2.45%) Front Office
6 22 (2.16%) Law
7 18 (1.76%) Marketing
8 14 (1.37%) Telecoms
9 13 (1.27%) Financial Institution
10 9 (0.88%) Investment Banking
11 8 (0.78%) Electronics
11 8 (0.78%) Manufacturing
12 7 (0.69%) Public Sector
13 4 (0.39%) Pharmaceutical
14 3 (0.29%) Back Office
14 3 (0.29%) Military
14 3 (0.29%) Multimedia
14 3 (0.29%) Retail Banking
15 2 (0.20%) Legal
15 2 (0.20%) Publishing
Job Titles
1 695 (68.14%) Developer
2 320 (31.37%) Android Developer
3 197 (19.31%) Java Developer
4 160 (15.69%) Senior Developer
5 111 (10.88%) Software Engineer
6 76 (7.45%) Java Engineer
7 69 (6.76%) Mobile Developer
8 63 (6.18%) Android Engineer
9 62 (6.08%) Senior Java Developer
10 56 (5.49%) Java Software Engineer
11 52 (5.10%) Senior Android Developer
12 50 (4.90%) Lead Developer
13 47 (4.61%) iOS Developer
14 43 (4.22%) Full Stack Developer
15 29 (2.84%) Software Developer
16 23 (2.25%) DevOps Engineer
16 23 (2.25%) iOS Android Developer
17 22 (2.16%) Lead DevOps
18 21 (2.06%) Java Android Developer
18 21 (2.06%) Junior
Libraries, Frameworks & Software Standards
1 172 (16.86%) Spring
2 140 (13.73%) Spring Boot
3 134 (13.14%) REST
4 120 (11.76%) React
5 110 (10.78%) RxJava
6 104 (10.20%) Node.js
7 100 (9.80%) AngularJS
8 79 (7.75%) Kafka
9 65 (6.37%) Android SDK
9 65 (6.37%) HTML
10 64 (6.27%) RESTful
11 61 (5.98%) Dagger
12 59 (5.78%) React Native
13 55 (5.39%) .NET
14 54 (5.29%) CSS
15 53 (5.20%) RabbitMQ
16 49 (4.80%) GraphQL
17 47 (4.61%) Web Services
18 38 (3.73%) HTML5
19 33 (3.24%) Retrofit
Miscellaneous
1 241 (23.63%) Mobile App
2 92 (9.02%) Greenfield Project
3 72 (7.06%) User Experience
4 59 (5.78%) Self-Motivation
5 57 (5.59%) Algorithms
6 44 (4.31%) Data Structures
7 36 (3.53%) iPad
8 27 (2.65%) Equities
9 23 (2.25%) Analytical Skills
9 23 (2.25%) Enterprise Software
10 22 (2.16%) Social Network
11 19 (1.86%) Fixed Income
12 18 (1.76%) Foreign Exchange (FX)
13 17 (1.67%) Derivative
14 16 (1.57%) Online Banking
15 11 (1.08%) Data Centre
15 11 (1.08%) Digital Currency
15 11 (1.08%) Mobile Banking
15 11 (1.08%) Virtual Team
16 9 (0.88%) Cloud Native
Operating Systems
1 532 (52.16%) Android
2 220 (21.57%) Apple iOS
3 64 (6.27%) Linux
4 11 (1.08%) Unix
5 8 (0.78%) CentOS
5 8 (0.78%) Debian
5 8 (0.78%) Ubuntu
6 7 (0.69%) Windows
7 5 (0.49%) Embedded Linux
7 5 (0.49%) Mac OS X
8 2 (0.20%) Windows Mobile
Processes & Methodologies
1 419 (41.08%) Android Development
2 398 (39.02%) Agile Software Development
3 252 (24.71%) Software Engineering
4 243 (23.82%) TDD
5 229 (22.45%) Microservices
6 209 (20.49%) Mobile Development
7 207 (20.29%) DevOps
8 206 (20.20%) Fintech
9 161 (15.78%) Continuous Integration
10 155 (15.20%) BDD
11 117 (11.47%) Mentoring
12 115 (11.27%) iOS Development
13 111 (10.88%) Open Source
14 96 (9.41%) Test Automation
15 95 (9.31%) Computer Science
16 92 (9.02%) Scrum
17 86 (8.43%) Problem-Solving
18 82 (8.04%) OO
19 72 (7.06%) SDLC
20 66 (6.47%) E-Commerce
Programming Languages
1 802 (78.63%) Java
2 184 (18.04%) Python
3 164 (16.08%) JavaScript
4 130 (12.75%) Apple Swift
5 123 (12.06%) C#
6 107 (10.49%) Java 8
7 96 (9.41%) Scala
8 75 (7.35%) Objective-C
8 75 (7.35%) SQL
9 70 (6.86%) TypeScript
10 67 (6.57%) PHP
11 53 (5.20%) Go
12 44 (4.31%) C++
13 41 (4.02%) Haskell
14 39 (3.82%) ES6
15 33 (3.24%) Ruby
16 28 (2.75%) Clojure
17 20 (1.96%) Rust
18 17 (1.67%) Erlang
18 17 (1.67%) Java 9
Qualifications
1 89 (8.73%) Degree
2 59 (5.78%) Computer Science Degree
3 9 (0.88%) AWS Certification
4 3 (0.29%) DBS Check
5 2 (0.20%) CISSP
5 2 (0.20%) CREST Certified
5 2 (0.20%) CSSLP
5 2 (0.20%) Master's Degree
5 2 (0.20%) Sun Certification
6 1 (0.098%) DV Cleared
6 1 (0.098%) SC Cleared
6 1 (0.098%) Security Cleared
Quality Assurance & Compliance
1 59 (5.78%) QA
2 5 (0.49%) PCI DSS
3 1 (0.098%) GDPR
3 1 (0.098%) MiFID
3 1 (0.098%) PSD2
System Software
1 221 (21.67%) Docker
2 6 (0.59%) Firmware
3 1 (0.098%) Hyper-V
3 1 (0.098%) VMware Infrastructure
Systems Management
1 226 (22.16%) Kubernetes
2 49 (4.80%) Terraform
3 33 (3.24%) Ansible
4 26 (2.55%) Prometheus
5 23 (2.25%) Grafana
6 22 (2.16%) Puppet
7 19 (1.86%) Opscode Chef
8 17 (1.67%) Packer
9 14 (1.37%) Kibana
10 13 (1.27%) Istio
11 11 (1.08%) Mesos
12 8 (0.78%) logstash
13 6 (0.59%) Docker Swarm
14 5 (0.49%) Marathon
15 4 (0.39%) AirWatch
15 4 (0.39%) Microsoft Intune
16 3 (0.29%) Graphite
17 1 (0.098%) Knative
17 1 (0.098%) Salt
Vendors
1 100 (9.80%) Google
2 24 (2.35%) Oracle
2 24 (2.35%) Xamarin
3 17 (1.67%) Dynatrace
4 15 (1.47%) Bloomberg
5 12 (1.18%) hybris
6 11 (1.08%) SAP
6 11 (1.08%) Sitecore
7 8 (0.78%) Apple
8 7 (0.69%) Microsoft
9 5 (0.49%) Twitter
10 4 (0.39%) Adobe
10 4 (0.39%) Instagram
10 4 (0.39%) Splunk
10 4 (0.39%) Sun
11 3 (0.29%) ATG
11 3 (0.29%) Demandware
11 3 (0.29%) IBM
11 3 (0.29%) Kony
11 3 (0.29%) MuleSoft