Period
to 25 September 2021

The following table provides summary statistics for permanent job vacancies advertised in England 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 25 September 2021 with a comparison to the same period in the previous 2 years.

JetBrains Kotlin
UK > England
6 months to
25 Sep 2021
Same period 2020 Same period 2019
Rank 205 224 420
Rank change year-on-year +19 +196 +220
Permanent jobs citing Kotlin 1,849 718 932
As % of all permanent jobs advertised in England 1.72% 1.60% 0.72%
As % of the Programming Languages category 3.15% 2.70% 1.34%
Number of salaries quoted 1,049 664 797
10th Percentile £50,000 £43,750 £38,750
25th Percentile £55,000 £51,250 £50,000
Median annual salary (50th Percentile) £75,000 £72,500 £67,500
Median % change year-on-year +3.45% +7.41% -
75th Percentile £100,000 £95,000 £81,250
90th Percentile £118,750 £128,750 £95,000
UK median annual salary £75,000 £70,000 £65,000
% change year-on-year +7.14% +7.69% -

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 advertised in England with a requirement for coding skills.

All Programming Languages
England
Permanent vacancies with a requirement for coding skills 58,748 26,557 69,594
As % of all permanent IT jobs advertised in England 54.63% 59.07% 53.53%
Number of salaries quoted 39,709 22,750 57,832
10th Percentile £35,500 £35,000 £31,250
25th Percentile £43,750 £42,500 £38,750
Median annual salary (50th Percentile) £60,000 £57,500 £52,500
Median % change year-on-year +4.35% +9.52% +5.00%
75th Percentile £78,750 £75,000 £71,250
90th Percentile £95,000 £95,000 £87,500
UK median annual salary £57,500 £55,000 £52,500
% change year-on-year +4.55% +4.76% +5.00%

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
Salary Trend in England

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

Salary trend for Kotlin in England

Kotlin
Salary Histogram in England

Salary distribution for jobs citing Kotlin in England over the 6 months to 25 September 2021.

Salary histogram for Kotlin in England

Kotlin
Job Locations in England

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Kotlin within the England region over the 6 months to 25 September 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
London -14 1,253 £85,000 +6.25% 201
North of England +40 272 £57,500 +12.20% 37
Yorkshire +15 158 £57,500 +9.52% 9
South East -114 121 £62,500 +8.70% 24
North West -24 101 £57,500 +27.78% 23
South West -27 74 £52,500 -12.50% 10
Midlands -78 52 £62,500 +56.25% 9
East of England -55 49 £50,000 +17.65% 15
West Midlands -71 37 £65,000 +62.50% 4
East Midlands -67 14 £60,000 - 5
North East -23 13 £70,125 +16.88% 5
Kotlin
UK

For the 6 months to 25 September 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 across the England region with a requirement for Kotlin.

1 1,481 (80.10%) Java
2 923 (49.92%) Agile Software Development
3 857 (46.35%) Software Engineering
4 705 (38.13%) AWS
5 663 (35.86%) React
6 653 (35.32%) JavaScript
7 605 (32.72%) Kubernetes
8 598 (32.34%) Android
9 594 (32.13%) Docker
10 537 (29.04%) Python
11 534 (28.88%) Finance
12 462 (24.99%) TypeScript
13 450 (24.34%) Scala
14 447 (24.18%) TDD
15 423 (22.88%) Microservices
16 411 (22.23%) DevOps
17 388 (20.98%) Azure
18 382 (20.66%) Full Stack Development
19 356 (19.25%) Android Development
20 354 (19.15%) AngularJS
21 353 (19.09%) GCP
22 348 (18.82%) Spring
23 326 (17.63%) Mobile App
24 315 (17.04%) Social Skills
25 292 (15.79%) C#
26 291 (15.74%) Apple iOS
27 281 (15.20%) SQL
27 281 (15.20%) Spring Boot
28 268 (14.49%) Git (software)
29 267 (14.44%) Vue.js

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
1 147 (7.95%) Apache
2 34 (1.84%) Confluence
3 30 (1.62%) Apache Airflow
4 29 (1.57%) Apache Pulsar
5 24 (1.30%) nginx
6 23 (1.24%) Gunicorn
7 20 (1.08%) Apache Spark
8 19 (1.03%) Elasticsearch
9 6 (0.32%) CMS
10 4 (0.22%) SAS
11 1 (0.054%) Headless CMS
11 1 (0.054%) OpenStack
11 1 (0.054%) Oracle SOA Suite
Applications
1 39 (2.11%) Sketch
2 30 (1.62%) InVision
3 22 (1.19%) Figma
4 6 (0.32%) Photoshop
5 5 (0.27%) GIMP
Business Applications
1 54 (2.92%) Distributed Ledger
2 48 (2.60%) R3 Corda
3 1 (0.054%) Oracle Receivables
3 1 (0.054%) Payment Gateway
3 1 (0.054%) SDL Web 8
3 1 (0.054%) Sentinel
Cloud Services
1 705 (38.13%) AWS
2 388 (20.98%) Azure
3 353 (19.09%) GCP
4 198 (10.71%) Serverless
5 172 (9.30%) AWS Lambda
6 137 (7.41%) Amazon EC2
7 134 (7.25%) Amazon S3
8 131 (7.08%) AWS CloudFormation
9 113 (6.11%) SaaS
10 78 (4.22%) GitHub
11 59 (3.19%) Google Play
12 49 (2.65%) Firebase
13 33 (1.78%) Cloud Computing
14 30 (1.62%) Bitrise
15 23 (1.24%) PaaS
16 21 (1.14%) Datadog
16 21 (1.14%) GitHub Actions
17 19 (1.03%) npm
18 15 (0.81%) DigitalOcean
19 12 (0.65%) IaaS
Communications & Networking
1 55 (2.97%) HTTP
2 22 (1.19%) Broadband
3 14 (0.76%) SSL
4 10 (0.54%) Internet
5 9 (0.49%) RIP
6 6 (0.32%) Network Security
7 4 (0.22%) 5G
7 4 (0.22%) FIX Connectivity
8 3 (0.16%) Firewall
8 3 (0.16%) TCP/IP
9 2 (0.11%) DHCP
9 2 (0.11%) DNS
9 2 (0.11%) Multicast
9 2 (0.11%) VoIP
10 1 (0.054%) HTTPS
10 1 (0.054%) Wi-Fi
Database & Business Intelligence
1 224 (12.11%) PostgreSQL
2 155 (8.38%) Amazon DynamoDB
3 146 (7.90%) NoSQL
4 119 (6.44%) MongoDB
5 103 (5.57%) Apache Ignite
6 85 (4.60%) Redis
7 75 (4.06%) MySQL
8 72 (3.89%) Blockchain
9 65 (3.52%) Relational Database
10 51 (2.76%) SQL Server
11 33 (1.78%) RDBMS
12 30 (1.62%) Data Warehouse
13 28 (1.51%) Apache Cassandra
14 23 (1.24%) Big Data
15 22 (1.19%) Amazon Aurora
15 22 (1.19%) Amazon RDS
16 16 (0.87%) Aerospike
17 14 (0.76%) Amazon Athena
17 14 (0.76%) Data Lake
17 14 (0.76%) Hadoop
Development Applications
1 268 (14.49%) Git (software)
2 181 (9.79%) Jenkins
3 89 (4.81%) JIRA
4 83 (4.49%) Gradle
5 63 (3.41%) webpack
6 59 (3.19%) GitLab
7 47 (2.54%) Bitbucket
8 45 (2.43%) Babel
9 43 (2.33%) JUnit
9 43 (2.33%) Maven
10 42 (2.27%) git-flow
11 39 (2.11%) CircleCI
12 38 (2.06%) Mercurial
12 38 (2.06%) Mockito
13 33 (1.78%) SonarQube
14 29 (1.57%) Cypress.io
14 29 (1.57%) Postman
15 26 (1.41%) Selenium
16 25 (1.35%) Android Studio
17 24 (1.30%) Appium
General
1 534 (28.88%) Finance
2 315 (17.04%) Social Skills
3 163 (8.82%) Front Office
4 152 (8.22%) Banking
5 82 (4.43%) Retail
6 81 (4.38%) Games
7 56 (3.03%) Analytical Skills
8 38 (2.06%) Billing
9 35 (1.89%) Retail Banking
10 29 (1.57%) Advertising
10 29 (1.57%) Automotive
11 27 (1.46%) Marketing
12 26 (1.41%) Inclusion and Diversity
12 26 (1.41%) Manufacturing
13 20 (1.08%) Back Office
13 20 (1.08%) Financial Institution
14 16 (0.87%) Organisational Skills
15 15 (0.81%) Presentation Skills
15 15 (0.81%) Russian Language
16 13 (0.70%) Investment Banking
Job Titles
1 949 (51.33%) Developer
2 601 (32.50%) Software Engineer
3 263 (14.22%) Android Developer
4 239 (12.93%) Java Developer
5 192 (10.38%) Senior Developer
6 170 (9.19%) Senior Software Engineer
7 127 (6.87%) Developer/Software Engineer
8 115 (6.22%) Python Developer
9 105 (5.68%) Python Engineer
10 104 (5.62%) Java Engineer
11 103 (5.57%) Python Software Engineer
12 93 (5.03%) Senior Java Developer
13 88 (4.76%) React Developer
14 86 (4.65%) Mobile Developer
15 84 (4.54%) Lead Developer
16 82 (4.43%) Android Engineer
17 73 (3.95%) Software Developer
18 70 (3.79%) Java Software Engineer
19 61 (3.30%) JavaScript Engineer
20 59 (3.19%) JavaScript Developer
Libraries, Frameworks & Software Standards
1 663 (35.86%) React
2 354 (19.15%) AngularJS
3 348 (18.82%) Spring
4 281 (15.20%) Spring Boot
5 267 (14.44%) Vue.js
6 259 (14.01%) Kafka
7 255 (13.79%) Node.js
8 216 (11.68%) REST
9 186 (10.06%) Web Services
10 178 (9.63%) GraphQL
11 174 (9.41%) RESTful
12 143 (7.73%) HTML
13 139 (7.52%) CSS
14 116 (6.27%) React Native
15 100 (5.41%) Redux
16 81 (4.38%) .NET
17 70 (3.79%) HTML5
18 60 (3.24%) Android SDK
19 58 (3.14%) Middleware
20 56 (3.03%) Flutter
Miscellaneous
1 326 (17.63%) Mobile App
2 192 (10.38%) User Experience
3 172 (9.30%) Equities
3 172 (9.30%) Foreign Exchange (FX)
4 168 (9.09%) Fixed Income
5 160 (8.65%) Derivative
6 140 (7.57%) Hedge funds
7 81 (4.38%) Enterprise Software
8 67 (3.62%) Greenfield Project
9 63 (3.41%) Credit Risk
10 53 (2.87%) Virtual Team
11 52 (2.81%) Algorithms
11 52 (2.81%) Data Structures
12 47 (2.54%) iPad
13 34 (1.84%) Cloud Native
14 32 (1.73%) Legacy Applications
15 30 (1.62%) Blog
16 22 (1.19%) Legacy Code
17 20 (1.08%) Social Media
18 19 (1.03%) Self-Motivation
Operating Systems
1 598 (32.34%) Android
2 291 (15.74%) Apple iOS
3 129 (6.98%) Linux
4 40 (2.16%) Unix
5 24 (1.30%) Windows
6 4 (0.22%) CentOS
6 4 (0.22%) Mac OS
7 1 (0.054%) CoreOS
7 1 (0.054%) Debian
7 1 (0.054%) Red Hat Enterprise Linux
Processes & Methodologies
1 923 (49.92%) Agile Software Development
2 857 (46.35%) Software Engineering
3 447 (24.18%) TDD
4 423 (22.88%) Microservices
5 411 (22.23%) DevOps
6 382 (20.66%) Full Stack Development
7 356 (19.25%) Android Development
8 249 (13.47%) Mobile Development
9 247 (13.36%) Fintech
10 233 (12.60%) Continuous Integration
11 222 (12.01%) Test Automation
12 198 (10.71%) Unit Testing
13 196 (10.60%) Problem-Solving
14 192 (10.38%) Mentoring
15 190 (10.28%) OOP
16 173 (9.36%) Computer Science
17 165 (8.92%) SOLID
18 160 (8.65%) OO
19 154 (8.33%) Asset Management
20 145 (7.84%) Pair Programming
Programming Languages
1 1,481 (80.10%) Java
2 653 (35.32%) JavaScript
3 537 (29.04%) Python
4 462 (24.99%) TypeScript
5 450 (24.34%) Scala
6 292 (15.79%) C#
7 281 (15.20%) SQL
8 245 (13.25%) C++
9 244 (13.20%) Apple Swift
10 178 (9.63%) Go
11 142 (7.68%) Clojure
12 130 (7.03%) Ruby
13 111 (6.00%) PHP
14 83 (4.49%) Objective-C
15 74 (4.00%) Dart
16 62 (3.35%) Java 11
17 61 (3.30%) Java 8
18 48 (2.60%) Groovy
19 39 (2.11%) R
20 36 (1.95%) ES6
Qualifications
1 155 (8.38%) Degree
2 90 (4.87%) Computer Science Degree
3 16 (0.87%) SANS
4 13 (0.70%) Security Cleared
5 12 (0.65%) SC Cleared
6 8 (0.43%) AWS Certification
7 4 (0.22%) PhD
8 2 (0.11%) Master's Degree
9 1 (0.054%) BPSS Clearance
9 1 (0.054%) DV Cleared
9 1 (0.054%) Postgraduate
Quality Assurance & Compliance
1 114 (6.17%) QA
2 26 (1.41%) GRC
3 19 (1.03%) Accessibility
4 17 (0.92%) WCAG
5 4 (0.22%) GDPR
5 4 (0.22%) HIPAA
5 4 (0.22%) ISO/IEC 27001
5 4 (0.22%) SOC 2
6 1 (0.054%) Data Quality
System Software
1 594 (32.13%) Docker
2 11 (0.59%) ISA Server
3 1 (0.054%) Virtual Machines
Systems Management
1 605 (32.72%) Kubernetes
2 239 (12.93%) Terraform
3 58 (3.14%) Prometheus
4 50 (2.70%) Opscode Chef
5 40 (2.16%) Grafana
6 31 (1.68%) Puppet
7 30 (1.62%) Graphite
8 16 (0.87%) Ansible
9 12 (0.65%) Istio
10 11 (0.59%) Mesos
10 11 (0.59%) Rancher
11 4 (0.22%) Kustomize
12 3 (0.16%) Docker Swarm
12 3 (0.16%) linkerd
12 3 (0.16%) ZABBIX
13 1 (0.054%) Fluentd
13 1 (0.054%) HP Quality Center
13 1 (0.054%) Kibana
13 1 (0.054%) logstash
13 1 (0.054%) Zipkin
Vendors
1 218 (11.79%) Google
2 62 (3.35%) Salesforce.com
3 56 (3.03%) Oracle
4 26 (1.41%) Apple
5 17 (0.92%) Microsoft
6 16 (0.87%) Splunk
7 14 (0.76%) Xamarin
8 12 (0.65%) Intel
9 9 (0.49%) Atlassian
10 8 (0.43%) SAP
10 8 (0.43%) YouTube
11 6 (0.32%) Foundry
12 5 (0.27%) Actian
13 4 (0.22%) Red Hat
14 3 (0.16%) Adobe
14 3 (0.16%) AppDynamics
14 3 (0.16%) Cognizant
14 3 (0.16%) Samsung
15 2 (0.11%) New Relic
15 2 (0.11%) Roku