Period
to 14 May 2021

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

JetBrains Kotlin
England > London
6 months to
14 May 2021
Same period 2020 Same period 2019
Rank 180 199 380
Rank change year-on-year +19 +181 +159
Permanent jobs citing Kotlin 673 733 456
As % of all permanent jobs advertised in London 2.00% 1.81% 0.78%
As % of the Programming Languages category 3.31% 3.20% 1.38%
Number of salaries quoted 464 565 347
10th Percentile £56,250 £50,500 £50,000
25th Percentile £62,500 £65,000 £58,750
Median annual salary (50th Percentile) £80,000 £80,000 £70,000
Median % change year-on-year - +14.29% -3.45%
75th Percentile £97,500 £118,750 £85,000
90th Percentile £115,000 £142,500 £99,250
England median annual salary £70,000 £72,500 £62,500
% change year-on-year -3.45% +16.00% -7.41%

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 London with a requirement for coding skills.

All Programming Languages
London
Permanent vacancies with a requirement for coding skills 20,330 22,935 33,150
As % of all permanent IT jobs advertised in London 60.36% 56.70% 56.63%
Number of salaries quoted 15,498 19,185 28,096
10th Percentile £43,750 £41,250 £38,000
25th Percentile £55,000 £52,482 £48,500
Median annual salary (50th Percentile) £70,000 £70,000 £65,000
Median % change year-on-year - +7.69% +8.33%
75th Percentile £88,750 £86,250 £82,500
90th Percentile £105,000 £105,000 £96,250
England median annual salary £57,500 £55,000 £52,500
% change year-on-year +4.55% +4.76% +5.00%

Kotlin
Job Vacancy Trend in London

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

Job vacancy trend for Kotlin in London

Kotlin
Salary Trend in London

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

Salary trend for Kotlin in London

Kotlin
Salary Histogram in London

Salary distribution for jobs citing Kotlin in London over the 6 months to 14 May 2021.

Salary histogram for Kotlin in London

Kotlin
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Kotlin within the London region over the 6 months to 14 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
Central London +72 143 £79,750 +13.93% 49
East London +21 10 £72,500 -9.38% 10
West London +29 7 £77,500 - 17
South London +10 4 £75,000 -
North London - 3 - - 1
Kotlin
England

For the 6 months to 14 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 across the London region with a requirement for Kotlin.

1 536 (79.64%) Java
2 320 (47.55%) Agile Software Development
3 237 (35.22%) React
4 231 (34.32%) Finance
4 231 (34.32%) JavaScript
5 229 (34.03%) Software Engineering
6 228 (33.88%) AWS
7 217 (32.24%) TDD
8 210 (31.20%) Python
9 209 (31.05%) Spring
10 204 (30.31%) TypeScript
11 199 (29.57%) Docker
12 197 (29.27%) Microservices
13 191 (28.38%) Android
14 180 (26.75%) Kubernetes
15 159 (23.63%) Scala
16 154 (22.88%) Spring Boot
17 144 (21.40%) Fintech
18 138 (20.51%) DevOps
19 124 (18.42%) Android Development
20 122 (18.13%) Node.js
20 122 (18.13%) SQL
21 118 (17.53%) Git (software)
21 118 (17.53%) Kafka
22 112 (16.64%) GCP
23 107 (15.90%) Azure
24 105 (15.60%) Social Skills
25 98 (14.56%) AngularJS
26 97 (14.41%) HTML
27 96 (14.26%) Equities

Kotlin
Co-occurring IT Skills in London 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 41 (6.09%) Apache
2 21 (3.12%) Apache Spark
2 21 (3.12%) Elasticsearch
3 18 (2.67%) Confluence
4 11 (1.63%) Apache Airflow
5 9 (1.34%) Apache Pulsar
5 9 (1.34%) Gunicorn
6 3 (0.45%) Ethereum
7 2 (0.30%) CMS
8 1 (0.15%) Oracle SOA Suite
Applications
1 27 (4.01%) InVision
1 27 (4.01%) Sketch
2 5 (0.74%) Figma
Business Applications
1 11 (1.63%) R3 Corda
2 3 (0.45%) Distributed Ledger
3 1 (0.15%) Dynamics NAV
3 1 (0.15%) Oracle Receivables
3 1 (0.15%) Payment Gateway
3 1 (0.15%) Sentinel
Cloud Services
1 228 (33.88%) AWS
2 112 (16.64%) GCP
3 107 (15.90%) Azure
4 53 (7.88%) Serverless
5 45 (6.69%) Amazon S3
6 44 (6.54%) AWS Lambda
7 41 (6.09%) Amazon EC2
8 36 (5.35%) SaaS
9 24 (3.57%) Google Play
10 22 (3.27%) GitHub
11 18 (2.67%) Firebase
12 8 (1.19%) Bitrise
13 6 (0.89%) Amazon SQS
14 5 (0.74%) Cloud Computing
15 4 (0.59%) Amazon ECS
15 4 (0.59%) AWS CloudFormation
15 4 (0.59%) Virtual Private Cloud
16 3 (0.45%) Amazon Cognito
16 3 (0.45%) AWS Fargate
16 3 (0.45%) BrowserStack
Communications & Networking
1 21 (3.12%) HTTP
2 5 (0.74%) Broadband
3 4 (0.59%) Internet
4 3 (0.45%) HTTPS
4 3 (0.45%) VoIP
4 3 (0.45%) Wi-Fi
5 2 (0.30%) Bluetooth
5 2 (0.30%) MQTT
5 2 (0.30%) NFC
5 2 (0.30%) RFID
6 1 (0.15%) Firewall
6 1 (0.15%) SSL
Database & Business Intelligence
1 88 (13.08%) NoSQL
2 65 (9.66%) PostgreSQL
3 60 (8.92%) Amazon DynamoDB
4 54 (8.02%) MongoDB
5 37 (5.50%) Apache Ignite
6 20 (2.97%) Hadoop
7 18 (2.67%) Apache Cassandra
7 18 (2.67%) Big Data
8 16 (2.38%) Apache Hive
8 16 (2.38%) Redis
9 13 (1.93%) MySQL
10 12 (1.78%) Relational Database
11 11 (1.63%) Data Warehouse
12 7 (1.04%) Blockchain
12 7 (1.04%) SQLite
13 5 (0.74%) Amazon Aurora
13 5 (0.74%) NewSQL
13 5 (0.74%) RDBMS
14 4 (0.59%) Data Lake
15 3 (0.45%) Mixpanel
Development Applications
1 118 (17.53%) Git (software)
2 45 (6.69%) Jenkins
3 36 (5.35%) JIRA
4 32 (4.75%) Gradle
5 31 (4.61%) Cypress.io
6 30 (4.46%) Selenium
7 27 (4.01%) PostCSS
8 21 (3.12%) Bitbucket
9 19 (2.82%) GitLab
9 19 (2.82%) Mercurial
10 18 (2.67%) JUnit
10 18 (2.67%) Mockito
11 15 (2.23%) CircleCI
11 15 (2.23%) SonarQube
11 15 (2.23%) webpack
12 14 (2.08%) Maven
13 12 (1.78%) Android Studio
14 11 (1.63%) Babel
15 10 (1.49%) fastlane
16 9 (1.34%) Cucumber
General
1 231 (34.32%) Finance
2 105 (15.60%) Social Skills
3 78 (11.59%) Front Office
4 74 (11.00%) Banking
5 34 (5.05%) Retail
6 27 (4.01%) Games
7 17 (2.53%) Advertising
8 16 (2.38%) Presentation Skills
9 15 (2.23%) Automotive
10 13 (1.93%) Publishing
11 12 (1.78%) Investment Banking
12 11 (1.63%) Analytical Skills
13 8 (1.19%) Electronics
13 8 (1.19%) Marketing
13 8 (1.19%) Russian Language
14 7 (1.04%) Billing
15 6 (0.89%) Financial Institution
15 6 (0.89%) Manufacturing
15 6 (0.89%) Retail Banking
16 3 (0.45%) Pharmaceutical
Job Titles
1 435 (64.64%) Developer
2 157 (23.33%) Java Developer
3 106 (15.75%) Software Engineer
4 100 (14.86%) Senior Developer
5 98 (14.56%) React Developer
6 89 (13.22%) Android Developer
7 51 (7.58%) Full Stack Developer
8 49 (7.28%) Lead Developer
9 45 (6.69%) Python Engineer
10 44 (6.54%) Developer/Software Engineer
10 44 (6.54%) Python Software Engineer
11 43 (6.39%) Python Developer
12 42 (6.24%) Senior Java Developer
13 40 (5.94%) JavaScript Developer
14 39 (5.79%) Front Office Developer
15 38 (5.65%) JavaScript Engineer
16 36 (5.35%) Android Engineer
17 35 (5.20%) Backend Developer
17 35 (5.20%) Senior Android Developer
18 34 (5.05%) Java Engineer
Libraries, Frameworks & Software Standards
1 237 (35.22%) React
2 209 (31.05%) Spring
3 154 (22.88%) Spring Boot
4 122 (18.13%) Node.js
5 118 (17.53%) Kafka
6 98 (14.56%) AngularJS
7 97 (14.41%) HTML
8 87 (12.93%) CSS
9 79 (11.74%) GraphQL
10 74 (11.00%) REST
10 74 (11.00%) RESTful
11 64 (9.51%) Vue.js
12 57 (8.47%) Web Services
13 56 (8.32%) HTML5
14 44 (6.54%) React Native
15 39 (5.79%) CSS3
16 38 (5.65%) Sass
17 34 (5.05%) Redux
18 30 (4.46%) Puppeteer
18 30 (4.46%) Twitter Bootstrap
Miscellaneous
1 96 (14.26%) Equities
1 96 (14.26%) Mobile App
2 85 (12.63%) Fixed Income
2 85 (12.63%) Foreign Exchange (FX)
3 80 (11.89%) Derivative
4 77 (11.44%) Hedge funds
5 56 (8.32%) User Experience
6 43 (6.39%) Credit Risk
7 28 (4.16%) Virtual Team
8 27 (4.01%) Data Structures
9 26 (3.86%) Algorithms
10 25 (3.71%) Greenfield Project
10 25 (3.71%) Self-Motivation
11 18 (2.67%) Blog
12 16 (2.38%) iPad
13 14 (2.08%) Cloud Native
13 14 (2.08%) Video\Live Streaming
14 7 (1.04%) Digital Media
14 7 (1.04%) NHS
14 7 (1.04%) Social Media
Operating Systems
1 191 (28.38%) Android
2 74 (11.00%) Apple iOS
3 38 (5.65%) Linux
3 38 (5.65%) Unix
Processes & Methodologies
1 320 (47.55%) Agile Software Development
2 229 (34.03%) Software Engineering
3 217 (32.24%) TDD
4 197 (29.27%) Microservices
5 144 (21.40%) Fintech
6 138 (20.51%) DevOps
7 124 (18.42%) Android Development
8 91 (13.52%) Continuous Integration
9 85 (12.63%) Test Automation
10 75 (11.14%) Asset Management
11 67 (9.96%) Continuous Delivery
12 66 (9.81%) Analytics
13 63 (9.36%) Mobile Development
14 56 (8.32%) Computer Science
15 49 (7.28%) Pair Programming
16 47 (6.98%) Investment Management
16 47 (6.98%) Mentoring
17 45 (6.69%) Scrum
18 43 (6.39%) Open Source
19 42 (6.24%) Problem-Solving
Programming Languages
1 536 (79.64%) Java
2 231 (34.32%) JavaScript
3 210 (31.20%) Python
4 204 (30.31%) TypeScript
5 159 (23.63%) Scala
6 122 (18.13%) SQL
7 87 (12.93%) C#
8 79 (11.74%) C++
9 54 (8.02%) Clojure
10 53 (7.88%) ES6
11 51 (7.58%) Java 8
12 50 (7.43%) Apple Swift
13 32 (4.75%) ES7
14 17 (2.53%) PHP
15 13 (1.93%) Objective-C
15 13 (1.93%) Ruby
16 12 (1.78%) C
16 12 (1.78%) Go
17 11 (1.63%) Erlang
18 9 (1.34%) Groovy
Qualifications
1 63 (9.36%) Degree
2 43 (6.39%) Computer Science Degree
3 27 (4.01%) SANS
4 5 (0.74%) DBS Check
4 5 (0.74%) Master's Degree
5 1 (0.15%) MBA
Quality Assurance & Compliance
1 66 (9.81%) QA
2 27 (4.01%) WCAG
3 11 (1.63%) GRC
4 2 (0.30%) Data Quality
5 1 (0.15%) GDPR
5 1 (0.15%) HIPAA
5 1 (0.15%) ISO/IEC 27001
5 1 (0.15%) SOC 2
System Software
1 199 (29.57%) Docker
2 2 (0.30%) ISA Server
Systems Management
1 180 (26.75%) Kubernetes
2 30 (4.46%) Terraform
3 11 (1.63%) Puppet
4 10 (1.49%) Opscode Chef
5 7 (1.04%) Prometheus
6 4 (0.59%) Ansible
6 4 (0.59%) Grafana
7 2 (0.30%) Istio
7 2 (0.30%) Kibana
7 2 (0.30%) Mesos
7 2 (0.30%) ZABBIX
7 2 (0.30%) Zipkin
8 1 (0.15%) Pingdom
Vendors
1 77 (11.44%) Google
2 10 (1.49%) Oracle
3 8 (1.19%) Microsoft
3 8 (1.19%) Xamarin
4 5 (0.74%) Apple
5 2 (0.30%) Atlassian
5 2 (0.30%) Caplin
5 2 (0.30%) Elastic Path
5 2 (0.30%) Facebook
5 2 (0.30%) Twitter
6 1 (0.15%) Adobe
6 1 (0.15%) AppDynamics
6 1 (0.15%) Dell
6 1 (0.15%) PagerDuty
6 1 (0.15%) Salesforce.com
6 1 (0.15%) Splunk