Period
to 6 May 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 6 May 2021 with a comparison to the same period in the previous 2 years.

JetBrains Kotlin
UK
6 months to
6 May 2021
Same period 2020 Same period 2019
Rank 270 291 531
Rank change year-on-year +21 +240 +230
Permanent jobs citing Kotlin 1,060 1,114 760
As % of all permanent jobs advertised in the UK 1.20% 1.09% 0.52%
As % of the Programming Languages category 2.19% 2.00% 0.95%
Number of salaries quoted 781 887 586
10th Percentile £46,250 £42,500 £43,750
25th Percentile £51,250 £51,250 £49,000
Median annual salary (50th Percentile) £70,000 £70,000 £62,500
Median % change year-on-year - +12.00% -3.85%
75th Percentile £87,500 £108,750 £75,938
90th Percentile £106,250 £127,500 £92,500
UK excluding London median annual salary £57,500 £55,000 £55,000
% change year-on-year +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 48,365 55,768 79,798
As % of all permanent IT jobs advertised in the UK 54.91% 54.59% 54.31%
Number of salaries quoted 38,340 46,401 65,808
10th Percentile £33,750 £32,500 £31,250
25th Percentile £42,500 £40,500 £37,500
Median annual salary (50th Percentile) £55,000 £55,000 £52,500
Median % change year-on-year - +4.76% +5.00%
75th Percentile £75,000 £72,500 £70,000
90th Percentile £90,000 £90,000 £85,000
UK excluding London median annual salary £50,000 £47,500 £45,000
% change year-on-year +5.26% +5.56% -

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 6 May 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 6 May 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 +34 998 £70,000 -3.45% 210
London +21 652 £80,000 - 141
UK excluding London +69 365 £57,500 +4.55% 75
Work from Home -77 254 £70,000 +3.70% 59
North of England +67 137 £57,500 +15.00% 28
Yorkshire +6 74 £57,500 +15.00% 9
South East -20 68 £58,750 +6.82% 13
South West +14 60 £52,500 +5.00% 10
North West +60 55 £57,500 +15.00% 12
Midlands +43 42 £45,000 +3.45% 6
Scotland -25 32 £55,000 -4.35% 4
East Midlands +27 26 £45,000 +5.88% 2
East of England +44 20 £85,000 +94.29% 10
West Midlands +5 16 £42,500 -34.62% 3
North East - 8 £65,000 - 7
Wales +33 7 £55,000 +46.67% 3
Isle of Man - 1 £42,500 -

For the 6 months to 6 May 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.

1 813 (76.70%) Java
2 520 (49.06%) Agile Software Development
3 387 (36.51%) Android
4 378 (35.66%) AWS
5 366 (34.53%) Software Engineering
5 366 (34.53%) JavaScript
6 333 (31.42%) TDD
7 306 (28.87%) Python
8 293 (27.64%) Docker
9 280 (26.42%) Kubernetes
10 279 (26.32%) React
11 272 (25.66%) DevOps
12 263 (24.81%) Android Development
13 251 (23.68%) Microservices
14 250 (23.58%) Scala
14 250 (23.58%) Finance
15 232 (21.89%) Spring
15 232 (21.89%) GCP
16 220 (20.75%) Mobile App
17 214 (20.19%) TypeScript
18 209 (19.72%) Azure
19 202 (19.06%) AngularJS
20 181 (17.08%) C#
21 174 (16.42%) Spring Boot
22 167 (15.75%) Node.js
23 160 (15.09%) Mobile Development
24 158 (14.91%) C++
25 157 (14.81%) Git (software)
26 156 (14.72%) Social Skills
27 151 (14.25%) Vue.js

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 60 (5.66%) Apache
2 31 (2.92%) Elasticsearch
3 28 (2.64%) Confluence
4 23 (2.17%) Apache Spark
5 13 (1.23%) nginx
6 7 (0.66%) Apache Airflow
6 7 (0.66%) Apache Pulsar
6 7 (0.66%) CMS
7 5 (0.47%) Gunicorn
8 4 (0.38%) Headless CMS
8 4 (0.38%) WordPress
9 3 (0.28%) Ethereum
10 1 (0.094%) OpenStack
10 1 (0.094%) Oracle SOA Suite
Applications
1 32 (3.02%) Sketch
2 27 (2.55%) InVision
3 11 (1.04%) Adobe XD
4 10 (0.94%) Figma
5 5 (0.47%) Adobe Illustrator
5 5 (0.47%) Photoshop
6 2 (0.19%) Adobe Creative Suite
Business Applications
1 13 (1.23%) R3 Corda
2 3 (0.28%) Distributed Ledger
3 2 (0.19%) Oracle Receivables
4 1 (0.094%) Dynamics NAV
4 1 (0.094%) Payment Gateway
4 1 (0.094%) Sentinel
Cloud Services
1 378 (35.66%) AWS
2 232 (21.89%) GCP
3 209 (19.72%) Azure
4 96 (9.06%) AWS CloudFormation
5 56 (5.28%) Serverless
6 47 (4.43%) Amazon EC2
7 46 (4.34%) Amazon S3
8 45 (4.25%) AWS Lambda
9 38 (3.58%) Firebase
10 36 (3.40%) SaaS
11 31 (2.92%) Google Play
12 23 (2.17%) GitHub
13 20 (1.89%) Amazon CloudWatch
14 13 (1.23%) Bitrise
15 7 (0.66%) Cloud Computing
15 7 (0.66%) Google Analytics
16 6 (0.57%) Amazon SQS
16 6 (0.57%) AWS Elastic Beanstalk
17 4 (0.38%) Amazon ECS
17 4 (0.38%) Heroku
Communications & Networking
1 22 (2.08%) HTTP
2 11 (1.04%) Bluetooth
3 8 (0.75%) DAB
4 7 (0.66%) Internet
5 4 (0.38%) Broadband
6 3 (0.28%) HTTPS
6 3 (0.28%) VoIP
6 3 (0.28%) Wi-Fi
7 2 (0.19%) MQTT
7 2 (0.19%) NFC
7 2 (0.19%) RFID
8 1 (0.094%) Firewall
8 1 (0.094%) Network Security
8 1 (0.094%) SSL
Database & Business Intelligence
1 86 (8.11%) NoSQL
2 68 (6.42%) PostgreSQL
3 62 (5.85%) MongoDB
4 59 (5.57%) Amazon DynamoDB
5 40 (3.77%) MySQL
6 37 (3.49%) Apache Ignite
7 22 (2.08%) Big Data
7 22 (2.08%) Hadoop
8 21 (1.98%) Redis
8 21 (1.98%) SQLite
9 19 (1.79%) Apache Hive
10 18 (1.70%) Apache Cassandra
11 14 (1.32%) Relational Database
12 8 (0.75%) BigQuery
12 8 (0.75%) Blockchain
13 7 (0.66%) Data Warehouse
14 6 (0.57%) Amazon RDS
15 5 (0.47%) Amazon Aurora
15 5 (0.47%) Data Lake
15 5 (0.47%) NewSQL
Development Applications
1 157 (14.81%) Git (software)
2 91 (8.58%) Jenkins
3 50 (4.72%) JIRA
4 36 (3.40%) Gradle
5 35 (3.30%) GitLab
6 31 (2.92%) Cypress.io
6 31 (2.92%) Selenium
7 26 (2.45%) Bitbucket
7 26 (2.45%) PostCSS
8 25 (2.36%) Android Studio
9 24 (2.26%) Mercurial
10 21 (1.98%) CircleCI
10 21 (1.98%) JUnit
10 21 (1.98%) Maven
11 18 (1.70%) Mockito
12 17 (1.60%) webpack
13 15 (1.42%) fastlane
14 14 (1.32%) Xcode
15 12 (1.13%) SonarQube
16 11 (1.04%) Travis CI
General
1 250 (23.58%) Finance
2 156 (14.72%) Social Skills
3 75 (7.08%) Banking
3 75 (7.08%) Front Office
4 56 (5.28%) Games
5 37 (3.49%) Retail
6 18 (1.70%) Electronics
7 17 (1.60%) Presentation Skills
7 17 (1.60%) Publishing
8 16 (1.51%) Advertising
9 15 (1.42%) Analytical Skills
10 14 (1.32%) Automotive
11 13 (1.23%) Marketing
12 12 (1.13%) Investment Banking
13 10 (0.94%) Manufacturing
14 8 (0.75%) Law
15 7 (0.66%) Financial Institution
16 6 (0.57%) Public Sector
16 6 (0.57%) Telecoms
17 5 (0.47%) Billing
Job Titles
1 655 (61.79%) Developer
2 211 (19.91%) Java Developer
3 210 (19.81%) Android Developer
4 206 (19.43%) Software Engineer
5 154 (14.53%) Senior Developer
6 104 (9.81%) React Developer
7 73 (6.89%) Android Engineer
8 67 (6.32%) Senior Android Developer
9 60 (5.66%) Senior Java Developer
10 59 (5.57%) Full Stack Developer
11 56 (5.28%) Mobile Developer
12 51 (4.81%) Lead Developer
13 46 (4.34%) Python Developer
14 45 (4.25%) Python Engineer
15 44 (4.15%) Developer/Software Engineer
15 44 (4.15%) Python Software Engineer
16 41 (3.87%) Java Engineer
17 38 (3.58%) Java Android Developer
17 38 (3.58%) JavaScript Developer
18 37 (3.49%) Backend Developer
Libraries, Frameworks & Software Standards
1 279 (26.32%) React
2 232 (21.89%) Spring
3 202 (19.06%) AngularJS
4 174 (16.42%) Spring Boot
5 167 (15.75%) Node.js
6 151 (14.25%) Vue.js
7 133 (12.55%) Kafka
8 111 (10.47%) REST
9 109 (10.28%) HTML
10 102 (9.62%) CSS
11 87 (8.21%) RESTful
12 82 (7.74%) React Native
13 79 (7.45%) GraphQL
14 73 (6.89%) Web Services
15 55 (5.19%) HTML5
16 49 (4.62%) RxJava
17 48 (4.53%) Redux
18 40 (3.77%) CSS3
18 40 (3.77%) Sass
19 33 (3.11%) Flutter
Miscellaneous
1 220 (20.75%) Mobile App
2 93 (8.77%) Equities
3 83 (7.83%) Fixed Income
3 83 (7.83%) Foreign Exchange (FX)
4 78 (7.36%) Derivative
5 75 (7.08%) Hedge funds
6 72 (6.79%) Greenfield Project
7 65 (6.13%) User Experience
8 41 (3.87%) Credit Risk
9 36 (3.40%) iPad
10 29 (2.74%) Virtual Team
11 25 (2.36%) Self-Motivation
12 21 (1.98%) Data Structures
13 20 (1.89%) Algorithms
14 16 (1.51%) Video\Live Streaming
15 15 (1.42%) Blog
16 13 (1.23%) Cloud Native
17 8 (0.75%) Digital Media
17 8 (0.75%) NHS
18 7 (0.66%) Social Media
Operating Systems
1 387 (36.51%) Android
2 138 (13.02%) Apple iOS
3 71 (6.70%) Linux
4 40 (3.77%) Unix
5 4 (0.38%) Windows
Processes & Methodologies
1 520 (49.06%) Agile Software Development
2 366 (34.53%) Software Engineering
3 333 (31.42%) TDD
4 272 (25.66%) DevOps
5 263 (24.81%) Android Development
6 251 (23.68%) Microservices
7 160 (15.09%) Mobile Development
8 148 (13.96%) Fintech
9 132 (12.45%) Unit Testing
10 123 (11.60%) Continuous Integration
11 117 (11.04%) OOP
12 113 (10.66%) SOLID
13 102 (9.62%) Test Automation
14 94 (8.87%) Analytics
15 86 (8.11%) Scrum
16 83 (7.83%) Don't repeat yourself (DRY)
16 83 (7.83%) OO
17 81 (7.64%) Computer Science
18 79 (7.45%) Continuous Delivery
19 76 (7.17%) Pair Programming
Programming Languages
1 813 (76.70%) Java
2 366 (34.53%) JavaScript
3 306 (28.87%) Python
4 250 (23.58%) Scala
5 214 (20.19%) TypeScript
6 181 (17.08%) C#
7 158 (14.91%) C++
8 127 (11.98%) SQL
9 118 (11.13%) Go
10 98 (9.25%) Apple Swift
11 86 (8.11%) Ruby
12 58 (5.47%) Clojure
12 58 (5.47%) Java 8
13 53 (5.00%) ES6
14 33 (3.11%) PHP
15 29 (2.74%) ES7
16 27 (2.55%) Objective-C
17 16 (1.51%) C
18 12 (1.13%) Erlang
19 9 (0.85%) Groovy
Qualifications
1 97 (9.15%) Degree
2 66 (6.23%) Computer Science Degree
3 26 (2.45%) SANS
4 5 (0.47%) DBS Check
4 5 (0.47%) Master's Degree
5 4 (0.38%) Security Cleared
6 3 (0.28%) SC Cleared
7 2 (0.19%) PhD
8 1 (0.094%) MBA
Quality Assurance & Compliance
1 78 (7.36%) QA
2 26 (2.45%) WCAG
3 6 (0.57%) GRC
4 2 (0.19%) Data Quality
4 2 (0.19%) ISO/IEC 27001
4 2 (0.19%) NIST
5 1 (0.094%) GDPR
5 1 (0.094%) HIPAA
5 1 (0.094%) IEC 62304
5 1 (0.094%) ISO 9001
5 1 (0.094%) SOC 2
System Software
1 293 (27.64%) Docker
2 2 (0.19%) Active Directory
3 1 (0.094%) Firmware
3 1 (0.094%) ISA Server
Systems Management
1 280 (26.42%) Kubernetes
2 128 (12.08%) Terraform
3 25 (2.36%) Opscode Chef
3 25 (2.36%) Prometheus
4 24 (2.26%) Ansible
5 22 (2.08%) ZABBIX
6 20 (1.89%) Graphite
7 8 (0.75%) Puppet
8 4 (0.38%) Grafana
9 2 (0.19%) Kibana
9 2 (0.19%) Zipkin
10 1 (0.094%) EMC NetWorker
10 1 (0.094%) Istio
10 1 (0.094%) Mesos
10 1 (0.094%) Packer
10 1 (0.094%) Pingdom
Vendors
1 97 (9.15%) Google
2 12 (1.13%) Apple
3 10 (0.94%) Oracle
4 9 (0.85%) Microsoft
4 9 (0.85%) Xamarin
5 8 (0.75%) Adobe
6 6 (0.57%) SAP
7 3 (0.28%) Atlassian
7 3 (0.28%) Facebook
8 2 (0.19%) Caplin
8 2 (0.19%) Elastic Path
8 2 (0.19%) Twitter
9 1 (0.094%) Dell
9 1 (0.094%) New Relic
9 1 (0.094%) PagerDuty
9 1 (0.094%) Salesforce.com
9 1 (0.094%) Samsung
9 1 (0.094%) Sony
9 1 (0.094%) Sun