Period
to 15 October 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 15 October 2021 with a comparison to the same period in the previous 2 years.

JetBrains Kotlin
UK
6 months to
15 Oct 2021
Same period 2020 Same period 2019
Rank 217 216 413
Rank change year-on-year -1 +197 +227
Permanent jobs citing Kotlin 2,012 761 1,028
As % of all permanent jobs advertised in the UK 1.61% 1.59% 0.75%
As % of the Programming Languages category 2.98% 2.68% 1.40%
Number of salaries quoted 1,152 711 878
10th Percentile £47,500 £42,500 £37,500
25th Percentile £53,750 £51,250 £48,750
Median annual salary (50th Percentile) £75,000 £72,500 £65,000
Median % change year-on-year +3.45% +11.54% -
75th Percentile £98,750 £92,500 £81,250
90th Percentile £118,750 £126,250 £95,000
UK excluding London median annual salary £57,500 £55,000 £52,500
% change year-on-year +4.55% +4.76% -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 67,409 28,402 73,538
As % of all permanent IT jobs advertised in the UK 53.89% 59.27% 53.44%
Number of salaries quoted 45,029 24,265 60,758
10th Percentile £35,000 £33,750 £31,250
25th Percentile £43,750 £42,500 £38,750
Median annual salary (50th Percentile) £60,000 £55,000 £52,500
Median % change year-on-year +9.09% +4.76% +5.00%
75th Percentile £77,500 £73,750 £70,000
90th Percentile £95,000 £90,000 £86,250
UK excluding London median annual salary £50,000 £50,000 £45,000
% change year-on-year - +11.11% -

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 15 October 2021.

Salary histogram for Kotlin in the UK

Kotlin
Top 16 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 15 October 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 +14 1,899 £75,000 - 286
London -25 1,277 £85,000 +6.25% 187
UK excluding London +37 639 £57,500 +4.55% 109
Work from Home -74 553 £85,000 +36.00% 90
North of England +24 292 £57,500 +9.52% 39
Yorkshire +9 168 £57,500 +9.52% 12
South East -85 135 £62,500 +2.04% 22
North West -19 112 £57,500 +27.78% 23
South West -37 72 £48,125 -12.50% 12
Midlands -89 51 £55,000 +37.50% 12
East of England -70 45 £50,000 +17.65% 13
West Midlands -78 36 £55,000 +37.50% 6
Scotland -95 34 £52,500 -8.70% 7
East Midlands -55 14 £55,000 +15.79% 6
North East -30 12 £60,250 +0.42% 4
Wales -46 12 £75,000 +66.67% 3

For the 6 months to 15 October 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 1,585 (78.78%) Java
2 1,009 (50.15%) Agile Software Development
3 936 (46.52%) Software Engineering
4 763 (37.92%) AWS
5 708 (35.19%) JavaScript
6 706 (35.09%) React
7 684 (34.00%) Android
8 647 (32.16%) Kubernetes
9 622 (30.91%) Docker
10 555 (27.58%) Python
11 544 (27.04%) Finance
12 500 (24.85%) TypeScript
13 489 (24.30%) Scala
14 459 (22.81%) TDD
15 444 (22.07%) DevOps
16 438 (21.77%) Microservices
17 413 (20.53%) Full Stack Development
18 406 (20.18%) Android Development
19 402 (19.98%) Azure
20 379 (18.84%) AngularJS
21 367 (18.24%) GCP
22 366 (18.19%) Mobile App
23 361 (17.94%) Spring
24 352 (17.50%) Apple iOS
25 335 (16.65%) Social Skills
26 317 (15.76%) C#
27 305 (15.16%) Apple Swift
28 292 (14.51%) Spring Boot
29 290 (14.41%) Git (software)
30 284 (14.12%) Node.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
1 154 (7.65%) Apache
2 47 (2.34%) Confluence
3 30 (1.49%) Apache Pulsar
4 29 (1.44%) Apache Airflow
5 26 (1.29%) Elasticsearch
6 21 (1.04%) Gunicorn
7 20 (0.99%) Apache Spark
8 19 (0.94%) nginx
9 10 (0.50%) CMS
10 4 (0.20%) SAS
11 2 (0.099%) Headless CMS
12 1 (0.050%) Oracle SOA Suite
12 1 (0.050%) Tomcat
Applications
1 44 (2.19%) Sketch
2 30 (1.49%) InVision
3 29 (1.44%) Figma
4 6 (0.30%) Photoshop
5 5 (0.25%) GIMP
6 1 (0.050%) Adobe XD
6 1 (0.050%) Chatbot
Business Applications
1 58 (2.88%) Distributed Ledger
2 52 (2.58%) R3 Corda
3 3 (0.15%) Summit
4 2 (0.099%) SDL Web 8
4 2 (0.099%) Shopify
5 1 (0.050%) Oracle Receivables
5 1 (0.050%) Payment Gateway
5 1 (0.050%) Sentinel
Cloud Services
1 763 (37.92%) AWS
2 402 (19.98%) Azure
3 367 (18.24%) GCP
4 220 (10.93%) Serverless
5 191 (9.49%) AWS Lambda
6 146 (7.26%) AWS CloudFormation
7 144 (7.16%) Amazon S3
8 141 (7.01%) Amazon EC2
9 122 (6.06%) SaaS
10 91 (4.52%) GitHub
11 71 (3.53%) Google Play
12 57 (2.83%) Firebase
13 35 (1.74%) Bitrise
13 35 (1.74%) Cloud Computing
14 25 (1.24%) PaaS
15 23 (1.14%) Datadog
15 23 (1.14%) npm
16 22 (1.09%) GitHub Actions
17 16 (0.80%) Amazon SQS
18 15 (0.75%) DigitalOcean
Communications & Networking
1 59 (2.93%) HTTP
2 26 (1.29%) Broadband
3 14 (0.70%) SSL
4 9 (0.45%) RIP
5 8 (0.40%) TCP/IP
6 7 (0.35%) Internet
6 7 (0.35%) Network Security
7 6 (0.30%) Firewall
8 4 (0.20%) 5G
8 4 (0.20%) FIX Connectivity
9 2 (0.099%) Bluetooth
9 2 (0.099%) DHCP
9 2 (0.099%) DNS
9 2 (0.099%) MQTT
9 2 (0.099%) Multicast
9 2 (0.099%) VoIP
10 1 (0.050%) HTTPS
10 1 (0.050%) SMS
10 1 (0.050%) SNMP
10 1 (0.050%) Wi-Fi
Database & Business Intelligence
1 238 (11.83%) PostgreSQL
2 166 (8.25%) Amazon DynamoDB
3 148 (7.36%) NoSQL
4 123 (6.11%) MongoDB
5 105 (5.22%) Apache Ignite
6 93 (4.62%) Redis
7 80 (3.98%) MySQL
8 78 (3.88%) Blockchain
9 76 (3.78%) Relational Database
10 59 (2.93%) SQL Server
11 38 (1.89%) RDBMS
12 29 (1.44%) Data Warehouse
13 27 (1.34%) Apache Cassandra
14 25 (1.24%) Amazon RDS
15 23 (1.14%) Big Data
16 21 (1.04%) Amazon Aurora
17 16 (0.80%) Aerospike
18 15 (0.75%) Data Lake
19 14 (0.70%) Amazon Athena
20 13 (0.65%) Hadoop
Development Applications
1 290 (14.41%) Git (software)
2 196 (9.74%) Jenkins
3 110 (5.47%) JIRA
4 87 (4.32%) Gradle
5 66 (3.28%) webpack
6 60 (2.98%) GitLab
7 57 (2.83%) JUnit
8 53 (2.63%) Bitbucket
9 49 (2.44%) Maven
10 45 (2.24%) git-flow
11 42 (2.09%) Babel
12 39 (1.94%) CircleCI
13 37 (1.84%) Mercurial
13 37 (1.84%) Mockito
14 36 (1.79%) Android Studio
15 33 (1.64%) Postman
16 32 (1.59%) SonarQube
17 31 (1.54%) Selenium
18 29 (1.44%) Cypress.io
19 26 (1.29%) Appium
General
1 544 (27.04%) Finance
2 335 (16.65%) Social Skills
3 159 (7.90%) Front Office
4 154 (7.65%) Banking
5 95 (4.72%) Retail
6 85 (4.22%) Games
7 58 (2.88%) Analytical Skills
8 42 (2.09%) Inclusion and Diversity
9 36 (1.79%) Billing
10 34 (1.69%) Marketing
11 33 (1.64%) Retail Banking
12 31 (1.54%) Automotive
13 30 (1.49%) Advertising
14 24 (1.19%) Presentation Skills
15 23 (1.14%) Financial Institution
15 23 (1.14%) Manufacturing
16 21 (1.04%) Back Office
17 16 (0.80%) Organisational Skills
18 14 (0.70%) Investment Banking
19 13 (0.65%) Russian Language
Job Titles
1 1,026 (50.99%) Developer
2 659 (32.75%) Software Engineer
3 301 (14.96%) Android Developer
4 246 (12.23%) Java Developer
5 207 (10.29%) Senior Developer
6 178 (8.85%) Senior Software Engineer
7 137 (6.81%) Developer/Software Engineer
8 118 (5.86%) Java Engineer
9 117 (5.82%) Python Developer
10 108 (5.37%) Python Engineer
11 105 (5.22%) Python Software Engineer
12 101 (5.02%) Mobile Developer
13 96 (4.77%) Android Engineer
14 95 (4.72%) Senior Java Developer
15 87 (4.32%) Software Developer
16 85 (4.22%) Lead Developer
17 82 (4.08%) React Developer
18 77 (3.83%) Java Software Engineer
19 64 (3.18%) Front End Developer (Client-Side Developer)
19 64 (3.18%) Senior Android Developer
Libraries, Frameworks & Software Standards
1 706 (35.09%) React
2 379 (18.84%) AngularJS
3 361 (17.94%) Spring
4 292 (14.51%) Spring Boot
5 284 (14.12%) Node.js
6 283 (14.07%) Vue.js
7 261 (12.97%) Kafka
8 231 (11.48%) REST
9 193 (9.59%) Web Services
10 191 (9.49%) GraphQL
11 185 (9.19%) RESTful
12 153 (7.60%) CSS
13 152 (7.55%) HTML
14 127 (6.31%) React Native
15 103 (5.12%) Redux
16 95 (4.72%) .NET
17 76 (3.78%) HTML5
18 70 (3.48%) Flutter
19 68 (3.38%) Android SDK
20 64 (3.18%) RxJava
Miscellaneous
1 366 (18.19%) Mobile App
2 229 (11.38%) User Experience
3 168 (8.35%) Foreign Exchange (FX)
4 167 (8.30%) Equities
5 164 (8.15%) Fixed Income
6 159 (7.90%) Derivative
7 136 (6.76%) Hedge funds
8 89 (4.42%) Enterprise Software
8 89 (4.42%) Greenfield Project
9 60 (2.98%) Algorithms
10 57 (2.83%) Data Structures
11 56 (2.78%) Virtual Team
12 55 (2.73%) Credit Risk
13 51 (2.53%) iPad
14 34 (1.69%) Cloud Native
15 32 (1.59%) Legacy Applications
16 29 (1.44%) Blog
17 25 (1.24%) Social Media
18 24 (1.19%) Legacy Code
19 22 (1.09%) BBC
Operating Systems
1 684 (34.00%) Android
2 352 (17.50%) Apple iOS
3 125 (6.21%) Linux
4 32 (1.59%) Unix
5 29 (1.44%) Windows
6 5 (0.25%) Mac OS
7 4 (0.20%) CentOS
8 1 (0.050%) CoreOS
8 1 (0.050%) Debian
8 1 (0.050%) Red Hat Enterprise Linux
Processes & Methodologies
1 1,009 (50.15%) Agile Software Development
2 936 (46.52%) Software Engineering
3 459 (22.81%) TDD
4 444 (22.07%) DevOps
5 438 (21.77%) Microservices
6 413 (20.53%) Full Stack Development
7 406 (20.18%) Android Development
8 281 (13.97%) Mobile Development
9 257 (12.77%) Continuous Integration
10 253 (12.57%) Fintech
11 237 (11.78%) Test Automation
12 216 (10.74%) Problem-Solving
13 215 (10.69%) Mentoring
14 212 (10.54%) Unit Testing
15 203 (10.09%) Computer Science
16 201 (9.99%) OOP
17 161 (8.00%) SOLID
18 158 (7.85%) OO
19 157 (7.80%) Pair Programming
20 150 (7.46%) Asset Management
Programming Languages
1 1,585 (78.78%) Java
2 708 (35.19%) JavaScript
3 555 (27.58%) Python
4 500 (24.85%) TypeScript
5 489 (24.30%) Scala
6 317 (15.76%) C#
7 305 (15.16%) Apple Swift
8 276 (13.72%) SQL
9 246 (12.23%) C++
10 200 (9.94%) Go
11 146 (7.26%) Clojure
12 137 (6.81%) Ruby
13 129 (6.41%) PHP
14 108 (5.37%) Objective-C
15 83 (4.13%) Dart
16 66 (3.28%) Java 8
17 62 (3.08%) Java 11
18 49 (2.44%) Groovy
19 44 (2.19%) R
20 39 (1.94%) Perl
Qualifications
1 160 (7.95%) Degree
2 92 (4.57%) Computer Science Degree
3 16 (0.80%) SANS
4 13 (0.65%) Security Cleared
5 11 (0.55%) AWS Certification
5 11 (0.55%) SC Cleared
6 4 (0.20%) PhD
7 3 (0.15%) Master's Degree
7 3 (0.15%) Postgraduate
8 2 (0.099%) BPSS Clearance
8 2 (0.099%) DV Cleared
Quality Assurance & Compliance
1 126 (6.26%) QA
2 34 (1.69%) Accessibility
3 23 (1.14%) GRC
4 18 (0.89%) WCAG
5 4 (0.20%) GDPR
5 4 (0.20%) HIPAA
5 4 (0.20%) ISO/IEC 27001
5 4 (0.20%) SOC 2
6 2 (0.099%) PMO
System Software
1 622 (30.91%) Docker
2 11 (0.55%) ISA Server
3 2 (0.099%) Apache ZooKeeper
4 1 (0.050%) Apache Flume
4 1 (0.050%) Firmware
4 1 (0.050%) Virtual Machines
Systems Management
1 647 (32.16%) Kubernetes
2 266 (13.22%) Terraform
3 62 (3.08%) Prometheus
4 49 (2.44%) Opscode Chef
5 42 (2.09%) Grafana
6 30 (1.49%) Graphite
7 29 (1.44%) Puppet
8 16 (0.80%) Ansible
9 12 (0.60%) Istio
9 12 (0.60%) Rancher
10 11 (0.55%) Mesos
11 5 (0.25%) linkerd
12 4 (0.20%) Docker Swarm
12 4 (0.20%) HP Quality Center
12 4 (0.20%) Kustomize
12 4 (0.20%) ZABBIX
13 3 (0.15%) logstash
14 2 (0.099%) Fluentd
14 2 (0.099%) Kibana
15 1 (0.050%) Zipkin
Vendors
1 245 (12.18%) Google
2 69 (3.43%) Salesforce.com
3 61 (3.03%) Oracle
4 28 (1.39%) Apple
5 19 (0.94%) Microsoft
6 17 (0.84%) Splunk
7 13 (0.65%) Xamarin
8 12 (0.60%) Intel
9 11 (0.55%) Atlassian
10 8 (0.40%) Cognizant
10 8 (0.40%) New Relic
10 8 (0.40%) YouTube
11 7 (0.35%) HP
11 7 (0.35%) SAP
11 7 (0.35%) Xero
12 6 (0.30%) Foundry
13 5 (0.25%) Adobe
13 5 (0.25%) AppDynamics
13 5 (0.25%) Elastic Path
13 5 (0.25%) Facebook