Period
to 20 October 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 20 October 2021 with a comparison to the same period in the previous 2 years.

JetBrains Kotlin
England > London
6 months to
20 Oct 2021
Same period 2020 Same period 2019
Rank 142 116 288
Rank change year-on-year -26 +172 +196
Permanent jobs citing Kotlin 1,282 561 644
As % of all permanent jobs advertised in London 2.53% 2.84% 1.19%
As % of the Programming Languages category 4.16% 4.64% 2.11%
Number of salaries quoted 733 519 554
10th Percentile £56,250 £50,000 £47,500
25th Percentile £65,000 £62,250 £58,750
Median annual salary (50th Percentile) £85,000 £80,000 £72,500
Median % change year-on-year +6.25% +10.34% +3.57%
75th Percentile £107,500 £102,500 £87,500
90th Percentile £126,250 £128,750 £105,000
England median annual salary £75,000 £75,000 £67,500
% change year-on-year - +11.11% -

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 30,796 12,084 30,455
As % of all permanent IT jobs advertised in London 60.84% 61.13% 56.13%
Number of salaries quoted 19,009 10,426 25,626
10th Percentile £45,000 £45,000 £38,750
25th Percentile £55,000 £53,750 £50,000
Median annual salary (50th Percentile) £72,500 £70,000 £65,000
Median % change year-on-year +3.57% +7.69% +4.00%
75th Percentile £91,250 £87,500 £85,000
90th Percentile £110,000 £110,000 £100,000
England median annual salary £60,000 £57,500 £52,500
% change year-on-year +4.35% +9.52% +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 20 October 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 20 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
Central London -51 123 £73,750 -1.67% 74
West London -50 28 £67,142 -16.07% 16
South London -13 10 £65,000 +30.00%
East London -26 4 £110,000 +37.50% 24
Kotlin
England

For the 6 months to 20 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 across the London region with a requirement for Kotlin.

1 1,038 (80.97%) Java
2 606 (47.27%) Agile Software Development
3 586 (45.71%) Software Engineering
4 485 (37.83%) AWS
5 481 (37.52%) Finance
6 443 (34.56%) JavaScript
7 437 (34.09%) React
8 396 (30.89%) TypeScript
9 371 (28.94%) Docker
10 368 (28.71%) Python
11 349 (27.22%) Kubernetes
12 344 (26.83%) Android
13 325 (25.35%) Full Stack Development
14 319 (24.88%) Scala
15 312 (24.34%) Microservices
16 291 (22.70%) TDD
17 280 (21.84%) Spring
18 260 (20.28%) SQL
19 249 (19.42%) Social Skills
20 246 (19.19%) AngularJS
21 231 (18.02%) Fintech
22 219 (17.08%) Spring Boot
23 218 (17.00%) DevOps
23 218 (17.00%) Azure
24 203 (15.83%) Mobile App
25 197 (15.37%) Git (software)
25 197 (15.37%) Apple iOS
26 190 (14.82%) Android Development
27 189 (14.74%) PostgreSQL
28 183 (14.27%) Google

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
1 153 (11.93%) Apache
2 33 (2.57%) Confluence
3 30 (2.34%) Apache Pulsar
4 27 (2.11%) Apache Airflow
5 20 (1.56%) Gunicorn
6 17 (1.33%) Apache Spark
7 9 (0.70%) nginx
8 4 (0.31%) CMS
8 4 (0.31%) Elasticsearch
8 4 (0.31%) SAS
9 1 (0.078%) Oracle SOA Suite
9 1 (0.078%) Tomcat
Applications
1 39 (3.04%) Sketch
2 29 (2.26%) InVision
3 19 (1.48%) Figma
4 5 (0.39%) GIMP
4 5 (0.39%) Photoshop
5 1 (0.078%) Adobe XD
5 1 (0.078%) Chatbot
Business Applications
1 51 (3.98%) Distributed Ledger
1 51 (3.98%) R3 Corda
2 3 (0.23%) Summit
3 1 (0.078%) Oracle Receivables
3 1 (0.078%) Payment Gateway
3 1 (0.078%) Sentinel
Cloud Services
1 485 (37.83%) AWS
2 218 (17.00%) Azure
3 175 (13.65%) GCP
4 165 (12.87%) Serverless
5 145 (11.31%) AWS Lambda
6 136 (10.61%) Amazon EC2
7 127 (9.91%) Amazon S3
8 99 (7.72%) SaaS
9 75 (5.85%) GitHub
10 51 (3.98%) Google Play
11 39 (3.04%) Firebase
12 34 (2.65%) AWS CloudFormation
13 32 (2.50%) Bitrise
14 27 (2.11%) Cloud Computing
15 21 (1.64%) Datadog
15 21 (1.64%) npm
16 18 (1.40%) GitHub Actions
17 11 (0.86%) Amazon EKS
17 11 (0.86%) IaaS
18 10 (0.78%) Amazon SQS
Communications & Networking
1 43 (3.35%) HTTP
2 24 (1.87%) Broadband
3 14 (1.09%) SSL
4 9 (0.70%) RIP
5 8 (0.62%) TCP/IP
6 4 (0.31%) 5G
6 4 (0.31%) Firewall
6 4 (0.31%) FIX Connectivity
7 2 (0.16%) Internet
7 2 (0.16%) VoIP
8 1 (0.078%) HTTPS
8 1 (0.078%) SMS
8 1 (0.078%) SNMP
8 1 (0.078%) Wi-Fi
Database & Business Intelligence
1 189 (14.74%) PostgreSQL
2 133 (10.37%) Amazon DynamoDB
3 111 (8.66%) NoSQL
4 104 (8.11%) Apache Ignite
5 70 (5.46%) MongoDB
6 63 (4.91%) Blockchain
7 56 (4.37%) Relational Database
8 43 (3.35%) SQL Server
9 36 (2.81%) RDBMS
10 35 (2.73%) MySQL
10 35 (2.73%) Redis
11 27 (2.11%) Data Warehouse
12 21 (1.64%) Amazon RDS
13 19 (1.48%) Amazon Aurora
14 17 (1.33%) Big Data
15 16 (1.25%) Aerospike
16 13 (1.01%) Data Lake
17 12 (0.94%) Amazon Athena
18 11 (0.86%) Apache Cassandra
18 11 (0.86%) OLTP
Development Applications
1 197 (15.37%) Git (software)
2 142 (11.08%) Jenkins
3 59 (4.60%) Gradle
4 54 (4.21%) JIRA
5 48 (3.74%) webpack
6 44 (3.43%) Bitbucket
7 39 (3.04%) CircleCI
7 39 (3.04%) git-flow
7 39 (3.04%) JUnit
8 36 (2.81%) Mercurial
9 34 (2.65%) GitLab
10 31 (2.42%) SonarQube
11 29 (2.26%) Maven
12 28 (2.18%) Mockito
13 27 (2.11%) Babel
13 27 (2.11%) Cypress.io
14 26 (2.03%) Postman
15 24 (1.87%) Selenium
16 20 (1.56%) Atlassian Bamboo
17 17 (1.33%) Cucumber
General
1 481 (37.52%) Finance
2 249 (19.42%) Social Skills
3 159 (12.40%) Front Office
4 127 (9.91%) Banking
5 65 (5.07%) Retail
6 64 (4.99%) Games
7 56 (4.37%) Analytical Skills
8 36 (2.81%) Billing
9 32 (2.50%) Retail Banking
10 29 (2.26%) Advertising
11 25 (1.95%) Automotive
12 20 (1.56%) Back Office
13 19 (1.48%) Financial Institution
13 19 (1.48%) Inclusion and Diversity
14 12 (0.94%) Investment Banking
14 12 (0.94%) Manufacturing
14 12 (0.94%) Russian Language
15 11 (0.86%) Presentation Skills
15 11 (0.86%) Public Speaking
16 7 (0.55%) Marketing
Job Titles
1 695 (54.21%) Developer
2 391 (30.50%) Software Engineer
3 171 (13.34%) Java Developer
4 157 (12.25%) Senior Developer
5 141 (11.00%) Android Developer
6 127 (9.91%) Developer/Software Engineer
7 114 (8.89%) Python Developer
8 107 (8.35%) Python Engineer
9 104 (8.11%) Python Software Engineer
9 104 (8.11%) Senior Software Engineer
10 82 (6.40%) Senior Java Developer
11 77 (6.01%) React Developer
12 72 (5.62%) Lead Developer
13 65 (5.07%) Java Engineer
14 55 (4.29%) Front End Developer (Client-Side Developer)
14 55 (4.29%) Software Developer
15 48 (3.74%) JavaScript Developer
16 46 (3.59%) Mobile Developer
16 46 (3.59%) Senior Android Developer
17 42 (3.28%) JavaScript Engineer
Libraries, Frameworks & Software Standards
1 437 (34.09%) React
2 280 (21.84%) Spring
3 246 (19.19%) AngularJS
4 219 (17.08%) Spring Boot
5 174 (13.57%) Kafka
6 164 (12.79%) Node.js
7 160 (12.48%) Vue.js
8 158 (12.32%) Web Services
9 150 (11.70%) REST
10 145 (11.31%) GraphQL
11 113 (8.81%) RESTful
12 109 (8.50%) CSS
13 107 (8.35%) HTML
14 81 (6.32%) React Native
15 67 (5.23%) Redux
16 66 (5.15%) HTML5
17 60 (4.68%) .NET
17 60 (4.68%) Middleware
18 53 (4.13%) RxJava
19 50 (3.90%) CSS3
Miscellaneous
1 203 (15.83%) Mobile App
2 159 (12.40%) Derivative
2 159 (12.40%) Foreign Exchange (FX)
3 158 (12.32%) Equities
4 155 (12.09%) Fixed Income
5 146 (11.39%) User Experience
6 135 (10.53%) Hedge funds
7 58 (4.52%) Algorithms
8 57 (4.45%) Greenfield Project
9 55 (4.29%) Credit Risk
10 52 (4.06%) Data Structures
10 52 (4.06%) Enterprise Software
11 43 (3.35%) Virtual Team
12 33 (2.57%) Cloud Native
13 32 (2.50%) Legacy Applications
14 28 (2.18%) Blog
15 22 (1.72%) Social Media
16 15 (1.17%) Renewable Energy
17 14 (1.09%) Digital Currency
17 14 (1.09%) Self-Motivation
Operating Systems
1 344 (26.83%) Android
2 197 (15.37%) Apple iOS
3 91 (7.10%) Linux
4 29 (2.26%) Unix
5 7 (0.55%) Windows
6 4 (0.31%) CentOS
7 3 (0.23%) Mac OS
8 1 (0.078%) CoreOS
8 1 (0.078%) Debian
8 1 (0.078%) Red Hat Enterprise Linux
Processes & Methodologies
1 606 (47.27%) Agile Software Development
2 586 (45.71%) Software Engineering
3 325 (25.35%) Full Stack Development
4 312 (24.34%) Microservices
5 291 (22.70%) TDD
6 231 (18.02%) Fintech
7 218 (17.00%) DevOps
8 190 (14.82%) Android Development
9 177 (13.81%) Problem-Solving
10 173 (13.49%) Test Automation
11 159 (12.40%) Continuous Integration
12 149 (11.62%) Asset Management
13 130 (10.14%) Computer Science
14 128 (9.98%) Mobile Development
15 115 (8.97%) Mentoring
16 111 (8.66%) SDLC
17 100 (7.80%) Clean Code
18 98 (7.64%) Open Source
19 93 (7.25%) Pair Programming
20 91 (7.10%) BDD
Programming Languages
1 1,038 (80.97%) Java
2 443 (34.56%) JavaScript
3 396 (30.89%) TypeScript
4 368 (28.71%) Python
5 319 (24.88%) Scala
6 260 (20.28%) SQL
7 176 (13.73%) Apple Swift
8 150 (11.70%) C#
9 142 (11.08%) Clojure
10 128 (9.98%) C++
11 73 (5.69%) Go
12 69 (5.38%) Objective-C
13 65 (5.07%) Dart
14 48 (3.74%) Groovy
15 47 (3.67%) PHP
16 46 (3.59%) Java 11
16 46 (3.59%) Java 8
17 41 (3.20%) Ruby
18 31 (2.42%) ES6
19 26 (2.03%) R
Qualifications
1 91 (7.10%) Degree
2 47 (3.67%) Computer Science Degree
3 15 (1.17%) SANS
4 11 (0.86%) AWS Certification
5 1 (0.078%) Security Cleared
Quality Assurance & Compliance
1 87 (6.79%) QA
2 22 (1.72%) GRC
3 15 (1.17%) WCAG
4 8 (0.62%) Accessibility
5 4 (0.31%) GDPR
5 4 (0.31%) HIPAA
5 4 (0.31%) ISO/IEC 27001
5 4 (0.31%) SOC 2
System Software
1 371 (28.94%) Docker
2 11 (0.86%) ISA Server
3 1 (0.078%) Apache Flume
3 1 (0.078%) Apache ZooKeeper
3 1 (0.078%) Firmware
Systems Management
1 349 (27.22%) Kubernetes
2 130 (10.14%) Terraform
3 40 (3.12%) Grafana
4 38 (2.96%) Prometheus
5 27 (2.11%) Puppet
6 17 (1.33%) Opscode Chef
7 13 (1.01%) Ansible
8 12 (0.94%) Istio
9 11 (0.86%) Mesos
10 9 (0.70%) Rancher
11 3 (0.23%) Docker Swarm
12 2 (0.16%) Fluentd
12 2 (0.16%) linkerd
13 1 (0.078%) collectd
13 1 (0.078%) Kustomize
13 1 (0.078%) logstash
13 1 (0.078%) ZABBIX
13 1 (0.078%) Zipkin
Vendors
1 183 (14.27%) Google
2 50 (3.90%) Salesforce.com
3 31 (2.42%) Oracle
4 18 (1.40%) Apple
4 18 (1.40%) Microsoft
5 12 (0.94%) Intel
6 9 (0.70%) Atlassian
7 8 (0.62%) YouTube
8 6 (0.47%) Foundry
9 5 (0.39%) Actian
9 5 (0.39%) Adobe
9 5 (0.39%) Xamarin
10 4 (0.31%) Cognizant
10 4 (0.31%) Red Hat
11 3 (0.23%) Bloomberg
11 3 (0.23%) HubSpot
11 3 (0.23%) Samsung
12 2 (0.16%) AppDynamics
12 2 (0.16%) Roku
12 2 (0.16%) Splunk