Period
to 26 October 2020

The following table provides summary statistics for permanent job vacancies advertised in the City of 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 26 October 2020 with a comparison to the same period in the previous 2 years.

JetBrains Kotlin
Central London > City of London
6 months to
26 Oct 2020
Same period 2019 Same period 2018
Rank 86 183 302
Rank change year-on-year +97 +119 0
Permanent jobs citing Kotlin 107 158 58
As % of all permanent jobs advertised in the City of London 2.93% 1.59% 0.52%
As % of the Programming Languages category 4.75% 2.66% 0.84%
Number of salaries quoted 150 162 57
Median annual salary £75,000 £72,500 £80,000
Median salary % change year-on-year +3.45% -9.38% +23.08%
10th Percentile £46,250 £43,125 £53,750
90th Percentile £93,750 £95,000 £113,000
Central London median annual salary £75,000 £70,000 £77,500
% change year-on-year +7.14% -9.68% +10.71%

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 the City of London with a requirement for coding skills.

All Programming Languages
City of London
Permanent vacancies with a requirement for coding skills 2,254 5,945 6,937
As % of all permanent IT jobs advertised in the City of London 61.72% 59.74% 62.10%
Number of salaries quoted 2,027 5,202 6,333
Median annual salary £70,000 £70,000 £65,000
Median salary % change year-on-year - +7.69% +8.33%
10th Percentile £45,150 £42,500 £41,250
90th Percentile £105,000 £97,500 £95,000
Central London median annual salary £70,000 £67,500 £65,000
% change year-on-year +3.70% +3.85% +8.33%

Kotlin
Job Vacancy Trend in the City of London

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

Job vacancy trend for Kotlin in the City of London

Kotlin
Salary Trend in the City of London

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

Salary trend for Kotlin in the City of London

Kotlin
Salary Histogram in the City of London

Salary distribution for jobs citing Kotlin in the City of London over the 6 months to 26 October 2020.

Salary histogram for Kotlin in the City of London

For the 6 months to 26 October 2020, 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 City of London region with a requirement for Kotlin.

1 92 (85.98%) Java
2 60 (56.07%) Agile Software Development
3 42 (39.25%) TDD
4 37 (34.58%) Scala
5 32 (29.91%) Docker
6 29 (27.10%) Microservices
7 28 (26.17%) NoSQL
8 25 (23.36%) DevOps
9 24 (22.43%) Kubernetes
10 23 (21.50%) AWS
11 22 (20.56%) Android
11 22 (20.56%) Banking
12 19 (17.76%) Java 8
13 18 (16.82%) Finance
13 18 (16.82%) JavaScript
14 17 (15.89%) Python
15 16 (14.95%) Degree
16 15 (14.02%) TypeScript
16 15 (14.02%) Mentoring
16 15 (14.02%) React
17 14 (13.08%) Continuous Delivery
17 14 (13.08%) Artificial Intelligence
18 13 (12.15%) Mobile App
18 13 (12.15%) Android Development
18 13 (12.15%) Kafka
18 13 (12.15%) GCP
18 13 (12.15%) Analytical Skills
19 12 (11.21%) ES6
19 12 (11.21%) Azure
19 12 (11.21%) MongoDB

Kotlin
Co-occurring IT Skills in the City of 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 7 (6.54%) Apache Spark
2 6 (5.61%) Elasticsearch
Cloud Services
1 23 (21.50%) AWS
2 13 (12.15%) GCP
3 12 (11.21%) Azure
4 5 (4.67%) GitHub
5 1 (0.93%) Amazon Kinesis
5 1 (0.93%) AWS Lambda
5 1 (0.93%) Serverless
Communications & Networking
1 1 (0.93%) HTTP
Database & Business Intelligence
1 28 (26.17%) NoSQL
2 12 (11.21%) MongoDB
3 11 (10.28%) Amazon DynamoDB
4 9 (8.41%) Apache Cassandra
5 7 (6.54%) Apache Hive
5 7 (6.54%) Big Data
5 7 (6.54%) Hadoop
6 4 (3.74%) PostgreSQL
7 3 (2.80%) MySQL
8 2 (1.87%) Redis
8 2 (1.87%) Scylla
9 1 (0.93%) BigQuery
9 1 (0.93%) Couchbase
9 1 (0.93%) Looker
9 1 (0.93%) RDBMS
9 1 (0.93%) Relational Database
Development Applications
1 10 (9.35%) Jenkins
2 9 (8.41%) Git (software)
2 9 (8.41%) Gradle
3 5 (4.67%) IntelliJ
3 5 (4.67%) Maven
4 4 (3.74%) SonarQube
5 1 (0.93%) Android Studio
5 1 (0.93%) Appium
5 1 (0.93%) Cucumber
5 1 (0.93%) Selenium
General
1 22 (20.56%) Banking
2 18 (16.82%) Finance
3 9 (8.41%) Investment Banking
4 8 (7.48%) Games
5 6 (5.61%) Retail Banking
6 4 (3.74%) Publishing
7 1 (0.93%) Law
Job Titles
1 86 (80.37%) Developer
2 45 (42.06%) Java Developer
3 11 (10.28%) Android Developer
4 8 (7.48%) Full Stack Developer
4 8 (7.48%) Lead Developer
5 7 (6.54%) Mobile Developer
5 7 (6.54%) Senior Developer
6 4 (3.74%) Artificial Intelligence Developer
6 4 (3.74%) Chief Technology Officer
6 4 (3.74%) Engineering Manager
6 4 (3.74%) Java Engineer
6 4 (3.74%) Junior
6 4 (3.74%) Junior Developer
6 4 (3.74%) Junior Java Developer
6 4 (3.74%) Lead Android Developer
6 4 (3.74%) Scala Developer
7 3 (2.80%) Backend Developer
7 3 (2.80%) Senior Backend Developer
7 3 (2.80%) Senior Software Developer
7 3 (2.80%) Software Developer
Libraries, Frameworks & Software Standards
1 15 (14.02%) React
2 13 (12.15%) Kafka
3 10 (9.35%) AngularJS
4 9 (8.41%) Node.js
4 9 (8.41%) Spring
5 7 (6.54%) CSS
5 7 (6.54%) HTML
5 7 (6.54%) HTML5
5 7 (6.54%) RESTful
6 6 (5.61%) React Native
6 6 (5.61%) RxJava
6 6 (5.61%) Spring Boot
7 5 (4.67%) Vert.x
8 3 (2.80%) Flutter
8 3 (2.80%) iOS SDK
9 2 (1.87%) Android SDK
9 2 (1.87%) NativeScript
9 2 (1.87%) Redux
9 2 (1.87%) RxSwift
10 1 (0.93%) Spring Cloud
Miscellaneous
1 13 (12.15%) Analytical Skills
1 13 (12.15%) Mobile App
2 9 (8.41%) Self-Motivation
2 9 (8.41%) Video\Live Streaming
3 8 (7.48%) Mobile Banking
4 7 (6.54%) Greenfield Project
5 3 (2.80%) Algorithms
5 3 (2.80%) Foreign Exchange (FX)
5 3 (2.80%) Renewable Energy
5 3 (2.80%) User Experience
Operating Systems
1 22 (20.56%) Android
2 11 (10.28%) Apple iOS
Processes & Methodologies
1 60 (56.07%) Agile Software Development
2 42 (39.25%) TDD
3 29 (27.10%) Microservices
4 25 (23.36%) DevOps
5 15 (14.02%) Mentoring
6 14 (13.08%) Artificial Intelligence
6 14 (13.08%) Continuous Delivery
7 13 (12.15%) Android Development
8 12 (11.21%) Scrum
9 11 (10.28%) Computer Science
9 11 (10.28%) Open Source
9 11 (10.28%) Problem-Solving
10 10 (9.35%) Continuous Integration
10 10 (9.35%) Kanban
10 10 (9.35%) Mobile Development
11 9 (8.41%) OO
11 9 (8.41%) Prototyping
11 9 (8.41%) Software Engineering
12 8 (7.48%) Issue Tracking
12 8 (7.48%) Time Management
Programming Languages
1 92 (85.98%) Java
2 37 (34.58%) Scala
3 19 (17.76%) Java 8
4 18 (16.82%) JavaScript
5 17 (15.89%) Python
6 15 (14.02%) TypeScript
7 12 (11.21%) ES6
8 10 (9.35%) SQL
9 8 (7.48%) C#
9 8 (7.48%) PHP
10 6 (5.61%) Apple Swift
11 3 (2.80%) Go
11 3 (2.80%) Haskell
12 2 (1.87%) Clojure
12 2 (1.87%) Lisp
13 1 (0.93%) C++
13 1 (0.93%) Objective-C
13 1 (0.93%) Ruby
13 1 (0.93%) Rust
Qualifications
1 16 (14.95%) Degree
2 10 (9.35%) Computer Science Degree
System Software
1 32 (29.91%) Docker
Systems Management
1 24 (22.43%) Kubernetes
2 7 (6.54%) Terraform
3 5 (4.67%) Kibana
3 5 (4.67%) Pingdom
4 1 (0.93%) Ansible
4 1 (0.93%) Opscode Chef
4 1 (0.93%) Puppet
Vendors
1 3 (2.80%) Solace
2 1 (0.93%) Xamarin