Job Vacancy Trend Salary Trend Salary Histogram Job Locations Skill Sets
Period
to 14 June 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 14 June 2021 with a comparison to the same period in the previous 2 years.

JetBrains Kotlin
UK > England
6 months to
14 Jun 2021		 Same period 2020 Same period 2019
Rank 253 263 469
Rank change year-on-year +10 +206 +212
Permanent jobs citing Kotlin 1,208 923 845
As % of all permanent jobs advertised in England 1.35% 1.20% 0.64%
As % of the Programming Languages category 2.42% 2.17% 1.17%
Number of salaries quoted 761 779 669
10th Percentile £50,000 £42,500 £42,500
25th Percentile £53,750 £50,000 £48,750
Median annual salary (50th Percentile) £72,500 £70,000 £62,500
Median % change year-on-year +3.57% +12.00% -7.41%
75th Percentile £92,500 £100,000 £80,000
90th Percentile £115,000 £126,250 £95,000
UK median annual salary £72,500 £70,000 £62,500
% change year-on-year +3.57% +12.00% -3.85%

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 49,919 42,563 72,123
As % of all permanent IT jobs advertised in England 55.82% 55.31% 54.24%
Number of salaries quoted 36,501 35,740 59,906
10th Percentile £34,500 £32,500 £31,250
25th Percentile £42,500 £41,250 £38,750
Median annual salary (50th Percentile) £57,500 £55,000 £52,500
Median % change year-on-year +4.55% +4.76% +5.00%
75th Percentile £76,250 £75,000 £71,250
90th Percentile £92,500 £91,250 £85,000
UK median annual salary £55,000 £55,000 £52,500
% change year-on-year - +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 14 June 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 14 June 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 +20 808 £85,000 +6.25% 163
North of England +28 149 £57,500 +15.00% 28
South East -69 88 £60,000 +4.35% 17
Yorkshire -11 84 £57,500 +15.00% 5
South West -1 73 £50,000 - 12
North West +20 60 £57,500 +4.55% 22
Midlands -2 35 £45,000 +3.45% 13
East of England +17 30 £85,000 +41.67% 10
West Midlands -19 21 £40,500 -37.69% 11
East Midlands -22 14 £47,500 +11.76% 2
North East - 5 £65,000 - 1
Kotlin
UK

For the 6 months to 14 June 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.

1 939 (77.73%) Java
2 616 (50.99%) Agile Software Development
3 490 (40.56%) Software Engineering
4 460 (38.08%) AWS
5 435 (36.01%) JavaScript
6 414 (34.27%) Android
7 383 (31.71%) Python
8 382 (31.62%) Docker
9 377 (31.21%) TDD
10 370 (30.63%) Kubernetes
11 342 (28.31%) React
12 332 (27.48%) Finance
13 303 (25.08%) Scala
14 294 (24.34%) Microservices
15 288 (23.84%) DevOps
16 284 (23.51%) TypeScript
17 268 (22.19%) Android Development
18 264 (21.85%) Spring
19 257 (21.27%) GCP
20 250 (20.70%) Azure
21 238 (19.70%) Mobile App
22 222 (18.38%) AngularJS
23 213 (17.63%) C#
24 202 (16.72%) Git (software)
25 194 (16.06%) C++
26 192 (15.89%) Spring Boot
27 186 (15.40%) Node.js
28 182 (15.07%) Social Skills
29 175 (14.49%) Mobile Development
29 175 (14.49%) SQL

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 70 (5.79%) Apache
2 26 (2.15%) Apache Spark
3 24 (1.99%) Confluence
4 19 (1.57%) Apache Airflow
4 19 (1.57%) Apache Pulsar
4 19 (1.57%) Elasticsearch
5 17 (1.41%) nginx
6 12 (0.99%) Gunicorn
7 5 (0.41%) CMS
8 3 (0.25%) Ethereum
8 3 (0.25%) Headless CMS
8 3 (0.25%) WordPress
9 1 (0.083%) OpenStack
9 1 (0.083%) Oracle SOA Suite
Applications
1 28 (2.32%) InVision
1 28 (2.32%) Sketch
2 5 (0.41%) Adobe Illustrator
2 5 (0.41%) Adobe XD
2 5 (0.41%) Figma
2 5 (0.41%) Photoshop
3 2 (0.17%) Adobe Creative Suite
Business Applications
1 11 (0.91%) R3 Corda
2 10 (0.83%) Distributed Ledger
3 2 (0.17%) Oracle Receivables
4 1 (0.083%) Dynamics NAV
4 1 (0.083%) Payment Gateway
Cloud Services
1 460 (38.08%) AWS
2 257 (21.27%) GCP
3 250 (20.70%) Azure
4 99 (8.20%) AWS CloudFormation
5 87 (7.20%) Serverless
6 70 (5.79%) Amazon EC2
6 70 (5.79%) SaaS
7 67 (5.55%) Amazon S3
7 67 (5.55%) AWS Lambda
8 45 (3.73%) Firebase
9 41 (3.39%) GitHub
10 32 (2.65%) Google Play
11 19 (1.57%) Cloud Computing
12 16 (1.32%) Bitrise
13 8 (0.66%) Amazon SQS
14 7 (0.58%) AWS Elastic Beanstalk
14 7 (0.58%) Datadog
15 6 (0.50%) BrowserStack
15 6 (0.50%) PaaS
16 5 (0.41%) Google Analytics
Communications & Networking
1 32 (2.65%) HTTP
2 10 (0.83%) Internet
3 8 (0.66%) Broadband
4 5 (0.41%) RIP
5 3 (0.25%) DAB
5 3 (0.25%) VoIP
5 3 (0.25%) Wi-Fi
6 2 (0.17%) Bluetooth
6 2 (0.17%) MQTT
6 2 (0.17%) NFC
6 2 (0.17%) RFID
7 1 (0.083%) Firewall
7 1 (0.083%) FIX Connectivity
7 1 (0.083%) HTTPS
7 1 (0.083%) Network Security
7 1 (0.083%) SSL
7 1 (0.083%) TCP/IP
Database & Business Intelligence
1 110 (9.11%) NoSQL
2 101 (8.36%) PostgreSQL
3 81 (6.71%) Amazon DynamoDB
4 66 (5.46%) MongoDB
5 49 (4.06%) Apache Ignite
6 35 (2.90%) MySQL
7 32 (2.65%) Redis
8 24 (1.99%) Big Data
8 24 (1.99%) Hadoop
9 22 (1.82%) Apache Cassandra
10 21 (1.74%) Amazon RDS
11 20 (1.66%) Apache Hive
12 17 (1.41%) Data Warehouse
13 16 (1.32%) SQLite
14 15 (1.24%) Blockchain
14 15 (1.24%) Relational Database
15 13 (1.08%) Data Lake
16 11 (0.91%) Amazon Aurora
17 7 (0.58%) OLTP
18 6 (0.50%) Amazon Athena
Development Applications
1 202 (16.72%) Git (software)
2 86 (7.12%) Jenkins
3 54 (4.47%) JIRA
4 53 (4.39%) Gradle
5 37 (3.06%) GitLab
6 32 (2.65%) Cypress.io
6 32 (2.65%) Selenium
7 31 (2.57%) webpack
8 28 (2.32%) Bitbucket
9 27 (2.24%) JUnit
9 27 (2.24%) PostCSS
10 26 (2.15%) Android Studio
10 26 (2.15%) Mockito
11 25 (2.07%) CircleCI
12 24 (1.99%) Mercurial
13 23 (1.90%) Babel
13 23 (1.90%) Maven
14 22 (1.82%) SonarQube
15 16 (1.32%) Xcode
16 15 (1.24%) git-flow
General
1 332 (27.48%) Finance
2 182 (15.07%) Social Skills
3 104 (8.61%) Front Office
4 94 (7.78%) Banking
5 54 (4.47%) Games
6 53 (4.39%) Retail
7 24 (1.99%) Analytical Skills
8 23 (1.90%) Presentation Skills
9 20 (1.66%) Advertising
9 20 (1.66%) Automotive
10 19 (1.57%) Electronics
11 18 (1.49%) Billing
11 18 (1.49%) Manufacturing
12 16 (1.32%) Publishing
13 15 (1.24%) Marketing
14 14 (1.16%) Retail Banking
15 11 (0.91%) Russian Language
16 8 (0.66%) Telecoms
17 7 (0.58%) Financial Institution
17 7 (0.58%) Pharmaceutical
Job Titles
1 688 (56.95%) Developer
2 289 (23.92%) Software Engineer
3 213 (17.63%) Android Developer
4 204 (16.89%) Java Developer
5 144 (11.92%) Senior Developer
6 111 (9.19%) React Developer
7 74 (6.13%) Android Engineer
8 63 (5.22%) Senior Java Developer
9 62 (5.13%) Lead Developer
10 60 (4.97%) Full Stack Developer
11 59 (4.88%) Senior Android Developer
12 57 (4.72%) Python Developer
13 56 (4.64%) Developer/Software Engineer
14 53 (4.39%) Python Engineer
14 53 (4.39%) Python Software Engineer
15 49 (4.06%) Senior Software Engineer
16 47 (3.89%) Front Office Developer
17 46 (3.81%) JavaScript Developer
18 45 (3.73%) JavaScript Engineer
18 45 (3.73%) Mobile Developer
Libraries, Frameworks & Software Standards
1 342 (28.31%) React
2 264 (21.85%) Spring
3 222 (18.38%) AngularJS
4 192 (15.89%) Spring Boot
5 186 (15.40%) Node.js
6 170 (14.07%) Vue.js
7 147 (12.17%) REST
8 145 (12.00%) Kafka
9 122 (10.10%) GraphQL
10 119 (9.85%) HTML
11 113 (9.35%) CSS
11 113 (9.35%) RESTful
12 95 (7.86%) React Native
13 89 (7.37%) Web Services
14 77 (6.37%) Redux
15 66 (5.46%) HTML5
16 43 (3.56%) CSS3
17 41 (3.39%) RxJava
17 41 (3.39%) Sass
18 39 (3.23%) Android SDK
Miscellaneous
1 238 (19.70%) Mobile App
2 118 (9.77%) Equities
3 107 (8.86%) Fixed Income
3 107 (8.86%) Foreign Exchange (FX)
4 103 (8.53%) Derivative
5 95 (7.86%) Hedge funds
6 91 (7.53%) User Experience
7 57 (4.72%) Credit Risk
7 57 (4.72%) Greenfield Project
8 40 (3.31%) iPad
9 39 (3.23%) Virtual Team
10 38 (3.15%) Data Structures
11 35 (2.90%) Algorithms
12 28 (2.32%) Self-Motivation
13 26 (2.15%) Blog
14 25 (2.07%) Cloud Native
15 17 (1.41%) Video\Live Streaming
16 11 (0.91%) CUDA
17 10 (0.83%) Digital Media
17 10 (0.83%) Enterprise Software
Operating Systems
1 414 (34.27%) Android
2 149 (12.33%) Apple iOS
3 81 (6.71%) Linux
4 49 (4.06%) Unix
5 8 (0.66%) Windows
6 2 (0.17%) Mac OS
7 1 (0.083%) CentOS
Processes & Methodologies
1 616 (50.99%) Agile Software Development
2 490 (40.56%) Software Engineering
3 377 (31.21%) TDD
4 294 (24.34%) Microservices
5 288 (23.84%) DevOps
6 268 (22.19%) Android Development
7 175 (14.49%) Mobile Development
8 169 (13.99%) Fintech
9 148 (12.25%) Continuous Integration
10 143 (11.84%) Unit Testing
11 141 (11.67%) Test Automation
12 139 (11.51%) SOLID
13 123 (10.18%) OOP
14 120 (9.93%) Pair Programming
15 119 (9.85%) Analytics
16 109 (9.02%) Mentoring
17 101 (8.36%) Asset Management
18 99 (8.20%) OO
19 97 (8.03%) Computer Science
20 90 (7.45%) Scrum
Programming Languages
1 939 (77.73%) Java
2 435 (36.01%) JavaScript
3 383 (31.71%) Python
4 303 (25.08%) Scala
5 284 (23.51%) TypeScript
6 213 (17.63%) C#
7 194 (16.06%) C++
8 175 (14.49%) SQL
9 119 (9.85%) Go
10 106 (8.77%) Apple Swift
11 88 (7.28%) Clojure
12 85 (7.04%) Ruby
13 59 (4.88%) ES6
14 57 (4.72%) Java 8
15 37 (3.06%) PHP
16 35 (2.90%) ES7
17 24 (1.99%) Objective-C
18 19 (1.57%) Groovy
19 14 (1.16%) C
20 11 (0.91%) Dart
Qualifications
1 102 (8.44%) Degree
2 73 (6.04%) Computer Science Degree
3 27 (2.24%) SANS
4 5 (0.41%) DBS Check
4 5 (0.41%) Master's Degree
4 5 (0.41%) Security Cleared
5 4 (0.33%) PhD
5 4 (0.33%) SC Cleared
6 2 (0.17%) AWS Certification
7 1 (0.083%) MBA
Quality Assurance & Compliance
1 84 (6.95%) QA
2 27 (2.24%) WCAG
3 15 (1.24%) GRC
4 4 (0.33%) Accessibility
4 4 (0.33%) GDPR
4 4 (0.33%) HIPAA
4 4 (0.33%) ISO/IEC 27001
4 4 (0.33%) SOC 2
5 2 (0.17%) Data Quality
6 1 (0.083%) IEC 62304
System Software
1 382 (31.62%) Docker
2 7 (0.58%) ISA Server
3 1 (0.083%) Firmware
Systems Management
1 370 (30.63%) Kubernetes
2 149 (12.33%) Terraform
3 23 (1.90%) Opscode Chef
3 23 (1.90%) Prometheus
4 17 (1.41%) Puppet
5 12 (0.99%) Ansible
6 9 (0.75%) Graphite
7 8 (0.66%) Grafana
8 7 (0.58%) Mesos
9 6 (0.50%) ZABBIX
10 3 (0.25%) Istio
11 2 (0.17%) Kibana
11 2 (0.17%) Rancher
12 1 (0.083%) Pingdom
12 1 (0.083%) Zipkin
Vendors
1 113 (9.35%) Google
2 19 (1.57%) Apple
3 16 (1.32%) Oracle
4 10 (0.83%) Xamarin
5 9 (0.75%) Microsoft
6 8 (0.66%) SAP
7 6 (0.50%) Salesforce.com
8 5 (0.41%) Splunk
9 3 (0.25%) Adobe
10 2 (0.17%) AppDynamics
10 2 (0.17%) Atlassian
10 2 (0.17%) Caplin
10 2 (0.17%) Elastic Path
10 2 (0.17%) Facebook
10 2 (0.17%) Intel
10 2 (0.17%) Twitter
11 1 (0.083%) Databricks
11 1 (0.083%) Dell
11 1 (0.083%) New Relic
11 1 (0.083%) Sun