Period
to 26 February 2021

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 26 February 2021 with a comparison to the same period in the previous 2 years.

JetBrains Kotlin
UK
6 months to
26 Feb 2021
Same period 2020 Same period 2019
Rank 244 323 590
Rank change year-on-year +79 +267 +286
Permanent jobs citing Kotlin 964 1,209 672
As % of all permanent jobs advertised in the UK 1.30% 0.98% 0.44%
As % of the Programming Languages category 2.28% 1.81% 0.81%
Number of salaries quoted 1,032 1,097 580
Median annual salary £70,000 £70,000 £65,000
Median salary % change year-on-year - +7.69% -
10th Percentile £45,000 £40,300 £43,750
90th Percentile £109,500 £126,250 £95,000
UK excluding London median annual salary £57,500 £52,500 £52,500
% change year-on-year +9.52% - -4.55%

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 42,207 66,618 83,175
As % of all permanent IT jobs advertised in the UK 56.73% 54.10% 54.95%
Number of salaries quoted 35,186 55,474 69,566
Median annual salary £55,000 £52,500 £52,500
Median salary % change year-on-year +4.76% - +5.00%
10th Percentile £33,750 £32,000 £31,250
90th Percentile £90,000 £88,750 £85,000
UK excluding London median annual salary £50,000 £45,000 £45,000
% change year-on-year +11.11% - +5.88%

Kotlin
Job Vacancy Trend

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

Job vacancy trend for Kotlin in the UK

Kotlin
Salary Trend

3-month moving average salary quoted in jobs citing Kotlin.

Salary trend for Kotlin in the UK

Kotlin
Salary Histogram

Salary distribution for jobs citing Kotlin over the 6 months to 26 February 2021.

Salary histogram for Kotlin in the UK

Kotlin
Top 17 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 26 February 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +76 890 £70,000 -3.45% 238
London +56 627 £80,000 - 156
UK excluding London +119 290 £57,500 +9.52% 89
Work from Home -10 233 £65,000 -3.70% 84
North of England +77 118 £57,500 +15.00% 31
Yorkshire +29 65 £57,500 +15.00% 7
Midlands +77 45 £47,500 +1.60% 10
South West +62 44 £52,500 - 7
Scotland +21 41 £57,500 - 3
North West +61 40 £57,500 +15.00% 13
South East +49 34 £57,500 +4.55% 18
East Midlands +51 27 £46,250 +8.82% 3
West Midlands +49 18 £50,000 -4.76% 7
North East - 13 £60,000 - 11
Wales +43 4 £55,000 +69.23% 2
East of England +65 3 £42,500 -39.29% 15
Isle of Man - 1 £42,500 -

For the 6 months to 26 February 2021, 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.

1 765 (79.36%) Java
2 482 (50.00%) Agile Software Development
3 356 (36.93%) Android
4 341 (35.37%) JavaScript
5 322 (33.40%) AWS
6 318 (32.99%) Software Engineering
7 292 (30.29%) Python
8 263 (27.28%) TDD
9 251 (26.04%) React
10 239 (24.79%) AngularJS
11 235 (24.38%) Android Development
12 234 (24.27%) DevOps
12 234 (24.27%) Finance
13 223 (23.13%) Scala
14 221 (22.93%) Docker
15 210 (21.78%) Microservices
16 196 (20.33%) Spring
17 192 (19.92%) TypeScript
18 188 (19.50%) Kubernetes
19 187 (19.40%) Mobile App
20 186 (19.29%) Vue.js
21 174 (18.05%) Kafka
22 164 (17.01%) Apple iOS
23 153 (15.87%) Node.js
24 147 (15.25%) SQL
25 142 (14.73%) GCP
26 139 (14.42%) Spring Boot
27 127 (13.17%) Terraform
28 126 (13.07%) Fintech
28 126 (13.07%) C#

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 54 (5.60%) Apache
2 40 (4.15%) Elasticsearch
3 23 (2.39%) Apache Spark
4 15 (1.56%) Confluence
5 5 (0.52%) CMS
6 4 (0.41%) Headless CMS
6 4 (0.41%) nginx
6 4 (0.41%) WordPress
7 3 (0.31%) Apache Pulsar
7 3 (0.31%) Ethereum
8 1 (0.10%) Apache Airflow
8 1 (0.10%) Tomcat
Applications
1 21 (2.18%) Sketch
2 16 (1.66%) InVision
3 9 (0.93%) Adobe XD
4 8 (0.83%) Figma
5 3 (0.31%) Adobe Illustrator
5 3 (0.31%) Photoshop
Business Applications
1 14 (1.45%) R3 Corda
2 5 (0.52%) Distributed Ledger
2 5 (0.52%) Payment Gateway
3 2 (0.21%) Oracle Cash Management
4 1 (0.10%) Dynamics NAV
4 1 (0.10%) Oracle Receivables
4 1 (0.10%) Sentinel
Cloud Services
1 322 (33.40%) AWS
2 142 (14.73%) GCP
3 122 (12.66%) Azure
4 93 (9.65%) Amazon EC2
4 93 (9.65%) Amazon S3
5 92 (9.54%) Serverless
6 88 (9.13%) AWS Lambda
7 69 (7.16%) AWS CloudFormation
8 26 (2.70%) Firebase
9 23 (2.39%) GitHub
10 22 (2.28%) Amazon CloudWatch
11 21 (2.18%) SaaS
12 15 (1.56%) Google Play
13 10 (1.04%) Amazon SQS
14 9 (0.93%) Bitrise
15 8 (0.83%) Heroku
16 7 (0.73%) BrowserStack
16 7 (0.73%) Sauce Labs
17 6 (0.62%) Amazon ECS
17 6 (0.62%) Slack
Communications & Networking
1 15 (1.56%) Bluetooth
2 10 (1.04%) DAB
3 4 (0.41%) Wi-Fi
4 3 (0.31%) HTTPS
5 2 (0.21%) HTTP
5 2 (0.21%) Internet
5 2 (0.21%) MQTT
5 2 (0.21%) NFC
5 2 (0.21%) RFID
6 1 (0.10%) VoIP
Database & Business Intelligence
1 97 (10.06%) Amazon DynamoDB
2 82 (8.51%) NoSQL
3 67 (6.95%) MongoDB
4 61 (6.33%) PostgreSQL
5 37 (3.84%) MySQL
6 32 (3.32%) Apache Ignite
6 32 (3.32%) Redis
7 26 (2.70%) Relational Database
8 24 (2.49%) Hadoop
9 20 (2.07%) SQLite
10 17 (1.76%) Big Data
11 15 (1.56%) Apache Hive
12 10 (1.04%) Couchbase
13 9 (0.93%) Hazelcast
14 8 (0.83%) Apache Cassandra
14 8 (0.83%) Blockchain
15 7 (0.73%) RDBMS
16 6 (0.62%) BigQuery
17 4 (0.41%) Amazon RDS
17 4 (0.41%) NewSQL
Development Applications
1 95 (9.85%) Git (software)
2 87 (9.02%) Jenkins
3 43 (4.46%) Gradle
4 32 (3.32%) Android Studio
5 31 (3.22%) JIRA
6 28 (2.90%) Selenium
7 27 (2.80%) Maven
8 21 (2.18%) Appium
8 21 (2.18%) Cypress.io
9 18 (1.87%) JUnit
10 17 (1.76%) CircleCI
11 15 (1.56%) PostCSS
11 15 (1.56%) Xcode
12 13 (1.35%) Cucumber
13 12 (1.24%) Calabash
13 12 (1.24%) SonarQube
14 11 (1.14%) IntelliJ
15 10 (1.04%) webpack
16 9 (0.93%) Travis CI
17 8 (0.83%) Jasmine
General
1 234 (24.27%) Finance
2 99 (10.27%) Front Office
3 74 (7.68%) Banking
4 38 (3.94%) Games
5 30 (3.11%) Investment Banking
6 23 (2.39%) Retail
7 15 (1.56%) Law
8 13 (1.35%) Electronics
8 13 (1.35%) Publishing
9 8 (0.83%) French Language
9 8 (0.83%) Marketing
10 7 (0.73%) Automotive
11 6 (0.62%) Retail Banking
12 5 (0.52%) Financial Institution
13 3 (0.31%) Advertising
13 3 (0.31%) Pharmaceutical
14 1 (0.10%) Public Sector
Job Titles
1 658 (68.26%) Developer
2 202 (20.95%) Software Engineer
3 189 (19.61%) Android Developer
4 175 (18.15%) Java Developer
5 157 (16.29%) Senior Developer
6 97 (10.06%) Developer/Software Engineer
7 94 (9.75%) Python Developer
8 86 (8.92%) Python Engineer
9 84 (8.71%) Full Stack Developer
9 84 (8.71%) Python Software Engineer
10 75 (7.78%) React Developer
11 64 (6.64%) Android Engineer
11 64 (6.64%) Senior Android Developer
12 59 (6.12%) JavaScript Developer
13 58 (6.02%) JavaScript Engineer
14 55 (5.71%) Mobile Developer
15 46 (4.77%) Java Engineer
16 40 (4.15%) Senior Java Developer
17 39 (4.05%) Software Developer
18 38 (3.94%) Lead Developer
Libraries, Frameworks & Software Standards
1 251 (26.04%) React
2 239 (24.79%) AngularJS
3 196 (20.33%) Spring
4 186 (19.29%) Vue.js
5 174 (18.05%) Kafka
6 153 (15.87%) Node.js
7 139 (14.42%) Spring Boot
8 107 (11.10%) Web Services
9 87 (9.02%) React Native
10 76 (7.88%) HTML
11 63 (6.54%) REST
12 62 (6.43%) CSS
13 53 (5.50%) RxJava
14 51 (5.29%) RESTful
15 41 (4.25%) GraphQL
16 35 (3.63%) Spring Cloud
17 33 (3.42%) Android SDK
17 33 (3.42%) HTML5
18 27 (2.80%) Flutter
19 26 (2.70%) Sass
Miscellaneous
1 187 (19.40%) Mobile App
2 119 (12.34%) Foreign Exchange (FX)
3 112 (11.62%) Equities
4 108 (11.20%) Fixed Income
5 103 (10.68%) Derivative
6 97 (10.06%) Hedge funds
7 83 (8.61%) Greenfield Project
8 55 (5.71%) User Experience
9 31 (3.22%) Virtual Team
10 23 (2.39%) Analytical Skills
11 16 (1.66%) iPad
11 16 (1.66%) Self-Motivation
12 14 (1.45%) Credit Risk
13 13 (1.35%) Algorithms
14 10 (1.04%) Data Structures
15 9 (0.93%) Mobile Banking
15 9 (0.93%) Social Media
16 8 (0.83%) NHS
17 7 (0.73%) Blog
17 7 (0.73%) Video\Live Streaming
Operating Systems
1 356 (36.93%) Android
2 164 (17.01%) Apple iOS
3 40 (4.15%) Linux
4 26 (2.70%) Unix
Processes & Methodologies
1 482 (50.00%) Agile Software Development
2 318 (32.99%) Software Engineering
3 263 (27.28%) TDD
4 235 (24.38%) Android Development
5 234 (24.27%) DevOps
6 210 (21.78%) Microservices
7 126 (13.07%) Fintech
8 121 (12.55%) Mobile Development
9 104 (10.79%) Asset Management
9 104 (10.79%) Unit Testing
10 90 (9.34%) Test Automation
11 84 (8.71%) OOP
12 75 (7.78%) Continuous Integration
13 70 (7.26%) SOLID
14 69 (7.16%) Scrum
15 63 (6.54%) Mentoring
16 60 (6.22%) Computer Science
17 59 (6.12%) Don't repeat yourself (DRY)
18 58 (6.02%) MVVM
19 53 (5.50%) OO
Programming Languages
1 765 (79.36%) Java
2 341 (35.37%) JavaScript
3 292 (30.29%) Python
4 223 (23.13%) Scala
5 192 (19.92%) TypeScript
6 147 (15.25%) SQL
7 126 (13.07%) C#
8 114 (11.83%) Go
9 111 (11.51%) C++
10 104 (10.79%) Apple Swift
11 86 (8.92%) Ruby
12 69 (7.16%) Clojure
13 64 (6.64%) Java 8
14 43 (4.46%) PHP
15 35 (3.63%) ES6
16 33 (3.42%) Objective-C
17 25 (2.59%) C
18 21 (2.18%) Erlang
19 19 (1.97%) Elixir
20 18 (1.87%) Rust
Qualifications
1 77 (7.99%) Degree
2 50 (5.19%) Computer Science Degree
3 15 (1.56%) SANS
4 7 (0.73%) Master's Degree
5 3 (0.31%) DBS Check
5 3 (0.31%) TOGAF Certification
Quality Assurance & Compliance
1 65 (6.74%) QA
2 15 (1.56%) WCAG
3 2 (0.21%) ISO 20022
3 2 (0.21%) NIST
3 2 (0.21%) PSD2
3 2 (0.21%) TARGET2
4 1 (0.10%) IEC 62304
4 1 (0.10%) ISO 9001
4 1 (0.10%) ISO/IEC 27001
System Software
1 221 (22.93%) Docker
2 2 (0.21%) Active Directory
3 1 (0.10%) Firmware
Systems Management
1 188 (19.50%) Kubernetes
2 127 (13.17%) Terraform
3 28 (2.90%) Ansible
4 26 (2.70%) Prometheus
5 22 (2.28%) Opscode Chef
6 21 (2.18%) Graphite
6 21 (2.18%) ZABBIX
7 6 (0.62%) Puppet
8 5 (0.52%) Grafana
9 4 (0.41%) Kibana
10 3 (0.31%) Pingdom
10 3 (0.31%) Zipkin
11 2 (0.21%) AirWatch
12 1 (0.10%) EMC NetWorker
12 1 (0.10%) Packer
Vendors
1 65 (6.74%) Google
2 14 (1.45%) Apple
2 14 (1.45%) Oracle
3 11 (1.14%) Solace
3 11 (1.14%) Xamarin
4 5 (0.52%) Adobe
4 5 (0.52%) Microsoft
5 3 (0.31%) Facebook
5 3 (0.31%) PagerDuty
6 2 (0.21%) Caplin
6 2 (0.21%) Elastic Path
6 2 (0.21%) VMware
7 1 (0.10%) Atlassian
7 1 (0.10%) Salesforce.com
7 1 (0.10%) SAP
7 1 (0.10%) Sun