Period
to 20 October 2021

The following table provides summary statistics for permanent job vacancies advertised in Central 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
London > Central London
6 months to
20 Oct 2021
Same period 2020 Same period 2019
Rank 152 101 174
Rank change year-on-year -51 +73 +141
Permanent jobs citing Kotlin 123 110 221
As % of all permanent jobs advertised in Central London 1.80% 2.63% 1.76%
As % of the Programming Languages category 3.08% 4.32% 2.95%
Number of salaries quoted 100 108 202
10th Percentile £55,000 £46,250 £47,500
25th Percentile £61,250 £61,875 £57,500
Median annual salary (50th Percentile) £73,750 £75,000 £70,000
Median % change year-on-year -1.67% +7.14% -9.68%
75th Percentile £95,000 £87,500 £85,000
90th Percentile £106,250 £93,750 £95,000
London median annual salary £85,000 £80,000 £72,500
% change year-on-year +6.25% +10.34% +3.57%

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 Central London with a requirement for coding skills.

All Programming Languages
Central London
Permanent vacancies with a requirement for coding skills 3,992 2,545 7,494
As % of all permanent IT jobs advertised in Central London 58.42% 60.89% 59.52%
Number of salaries quoted 3,574 2,276 6,690
10th Percentile £46,250 £45,000 £42,250
25th Percentile £56,250 £55,000 £52,500
Median annual salary (50th Percentile) £75,000 £70,000 £67,500
Median % change year-on-year +7.14% +3.70% +3.85%
75th Percentile £94,688 £86,250 £82,500
90th Percentile £107,500 £103,750 £95,000
London median annual salary £72,500 £70,000 £65,000
% change year-on-year +3.57% +7.69% +4.00%

Kotlin
Job Vacancy Trend in Central London

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

Job vacancy trend for Kotlin in Central London

Kotlin
Salary Trend in Central London

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

Salary trend for Kotlin in Central London

Kotlin
Salary Histogram in Central London

Salary distribution for jobs citing Kotlin in Central London over the 6 months to 20 October 2021.

Salary histogram for Kotlin in Central London

Kotlin
Job Locations in Central London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Kotlin within the Central 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
City of London -54 123 £73,750 -1.67% 59
City of Westminster - 19 - -
Kotlin
London

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 Central London region with a requirement for Kotlin.

1 109 (88.62%) Java
2 58 (47.15%) AWS
3 55 (44.72%) Agile Software Development
4 50 (40.65%) JavaScript
4 50 (40.65%) Scala
5 39 (31.71%) DevOps
6 38 (30.89%) PHP
7 34 (27.64%) SDLC
8 33 (26.83%) Azure
9 32 (26.02%) Software Engineering
10 31 (25.20%) Apple Swift
10 31 (25.20%) Kubernetes
11 30 (24.39%) C#
12 29 (23.58%) Python
12 29 (23.58%) Mentoring
12 29 (23.58%) Social Skills
13 28 (22.76%) Microservices
14 27 (21.95%) TDD
15 25 (20.33%) OO
15 25 (20.33%) Docker
16 24 (19.51%) C++
16 24 (19.51%) Spring
16 24 (19.51%) Objective-C
17 21 (17.07%) Perl
17 21 (17.07%) VB.NET
17 21 (17.07%) .NET
17 21 (17.07%) OOP
17 21 (17.07%) CRM
17 21 (17.07%) Pascal
17 21 (17.07%) Salesforce.com

Kotlin
Co-occurring IT Skills in Central 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 9 (7.32%) Apache Spark
2 4 (3.25%) SAS
Business Applications
1 1 (0.81%) R3 Corda
Cloud Services
1 58 (47.15%) AWS
2 33 (26.83%) Azure
3 21 (17.07%) GCP
4 13 (10.57%) AWS CloudFormation
4 13 (10.57%) npm
5 4 (3.25%) Bitrise
6 3 (2.44%) Serverless
7 2 (1.63%) AWS Lambda
8 1 (0.81%) Amazon ECS
8 1 (0.81%) Firebase
8 1 (0.81%) SaaS
Communications & Networking
1 1 (0.81%) HTTP
1 1 (0.81%) Internet
Database & Business Intelligence
1 9 (7.32%) Hadoop
1 9 (7.32%) MongoDB
1 9 (7.32%) NoSQL
2 5 (4.07%) Amazon DynamoDB
3 4 (3.25%) Apache Cassandra
3 4 (3.25%) Apache Hive
3 4 (3.25%) Big Data
4 2 (1.63%) PostgreSQL
5 1 (0.81%) MySQL
5 1 (0.81%) OLTP
5 1 (0.81%) Redis
Development Applications
1 17 (13.82%) Git (software)
2 15 (12.20%) Jenkins
3 13 (10.57%) Bower
3 13 (10.57%) Grunt
3 13 (10.57%) webpack
4 6 (4.88%) Selenium
5 5 (4.07%) Cypress.io
6 4 (3.25%) Maven
7 3 (2.44%) Appium
7 3 (2.44%) fastlane
8 1 (0.81%) Android Studio
8 1 (0.81%) Atlassian Bamboo
8 1 (0.81%) CircleCI
8 1 (0.81%) TeamCity
8 1 (0.81%) Xcode
General
1 29 (23.58%) Social Skills
2 10 (8.13%) Finance
3 6 (4.88%) Retail
4 5 (4.07%) Retail Banking
5 4 (3.25%) Analytical Skills
5 4 (3.25%) Banking
6 3 (2.44%) Front Office
7 1 (0.81%) Public Speaking
Job Titles
1 87 (70.73%) Developer
2 30 (24.39%) Java Developer
3 25 (20.33%) Lead Developer
4 18 (14.63%) Salesforce Developer
4 18 (14.63%) Software Developer
5 16 (13.01%) Software Engineer
6 14 (11.38%) Backend Developer
7 13 (10.57%) PHP Developer
8 11 (8.94%) Lead PHP Developer
8 11 (8.94%) Senior Developer
9 10 (8.13%) Senior Java Developer
10 9 (7.32%) Software Manager
11 8 (6.50%) Developer/Software Engineer
11 8 (6.50%) Development Manager
11 8 (6.50%) Java Development Manager
11 8 (6.50%) Salesforce Software Engineer
11 8 (6.50%) Software Development Manager
12 7 (5.69%) Java Engineer
13 6 (4.88%) Software Test Engineer
13 6 (4.88%) Test Engineer
Libraries, Frameworks & Software Standards
1 24 (19.51%) Spring
2 21 (17.07%) .NET
2 21 (17.07%) AngularJS
3 20 (16.26%) Spring Boot
4 19 (15.45%) CSS
4 19 (15.45%) HTML
5 17 (13.82%) HTML5
6 16 (13.01%) Kafka
7 15 (12.20%) React
8 14 (11.38%) Web Services
9 13 (10.57%) CSS3
9 13 (10.57%) Laravel
9 13 (10.57%) LEMP Stack
9 13 (10.57%) LESS
9 13 (10.57%) Sass
9 13 (10.57%) Vue.js
9 13 (10.57%) Vuetify.js
10 11 (8.94%) REST
11 10 (8.13%) Node.js
12 8 (6.50%) Hibernate
Miscellaneous
1 14 (11.38%) Mobile App
2 10 (8.13%) Clustering
3 9 (7.32%) Self-Motivation
4 7 (5.69%) Greenfield Project
5 5 (4.07%) SWIFT
6 3 (2.44%) User Experience
6 3 (2.44%) Video\Live Streaming
7 1 (0.81%) Cloud Native
7 1 (0.81%) Credit Derivative
7 1 (0.81%) Online Banking
7 1 (0.81%) PKI
7 1 (0.81%) Wiki
Operating Systems
1 19 (15.45%) Android
2 14 (11.38%) Apple iOS
3 2 (1.63%) Unix
4 1 (0.81%) Linux
Processes & Methodologies
1 55 (44.72%) Agile Software Development
2 39 (31.71%) DevOps
3 34 (27.64%) SDLC
4 32 (26.02%) Software Engineering
5 29 (23.58%) Mentoring
6 28 (22.76%) Microservices
7 27 (21.95%) TDD
8 25 (20.33%) OO
9 21 (17.07%) CRM
9 21 (17.07%) OOP
10 16 (13.01%) MVC
11 15 (12.20%) Fintech
11 15 (12.20%) Test Automation
12 13 (10.57%) OWASP
12 13 (10.57%) Software Architecture
12 13 (10.57%) Web Development
13 7 (5.69%) Mobile Development
14 6 (4.88%) Android Development
14 6 (4.88%) Event-Driven
14 6 (4.88%) SDET
Programming Languages
1 109 (88.62%) Java
2 50 (40.65%) JavaScript
2 50 (40.65%) Scala
3 38 (30.89%) PHP
4 31 (25.20%) Apple Swift
5 30 (24.39%) C#
6 29 (23.58%) Python
7 24 (19.51%) C++
7 24 (19.51%) Objective-C
8 21 (17.07%) Dart
8 21 (17.07%) MATLAB
8 21 (17.07%) Pascal
8 21 (17.07%) Perl
8 21 (17.07%) R
8 21 (17.07%) Ruby
8 21 (17.07%) VB.NET
9 10 (8.13%) Java 8
9 10 (8.13%) SQL
10 9 (7.32%) Go
11 4 (3.25%) TypeScript
Qualifications
1 4 (3.25%) Computer Science Degree
1 4 (3.25%) Degree
Quality Assurance & Compliance
1 5 (4.07%) QA
2 4 (3.25%) Accessibility
System Software
1 25 (20.33%) Docker
2 1 (0.81%) ISA Server
Systems Management
1 31 (25.20%) Kubernetes
2 7 (5.69%) Terraform
3 6 (4.88%) Prometheus
4 1 (0.81%) Grafana
4 1 (0.81%) Mesos
Vendors
1 21 (17.07%) Salesforce.com
2 14 (11.38%) Google