Period
to 17 August 2018

The following table provides summary statistics for contract job vacancies advertised in London with a requirement for Kotlin skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Kotlin over the 6 months to 17 August 2018 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

JetBrains Kotlin
England > London
6 months to
17 Aug 2018
Same period 2017 Same period 2016
Rank 394 569 619
Rank change year-on-year +175 +50 -
Contract jobs citing Kotlin 241 37 4
As % of all contract IT jobs advertised in London 0.53% 0.087% 0.009%
As % of the Programming Languages category 1.05% 0.18% 0.020%
Number of daily rates quoted 201 31 4
London median daily rate £550 £550 £588
Median daily rate % change year-on-year - -6.38% -
10th Percentile £419 £413 £528
90th Percentile £725 £650 £774
England median daily rate £525 £531 £588
% change year-on-year -1.18% -9.57% -
Number of hourly rates quoted 0 0 0
London median hourly rate - - -
England median hourly rate - - -

Kotlin is in the Programming Languages category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in London with a requirement for coding skills.

All Programming Languages
London
Contract vacancies with a requirement for coding skills 22,934 20,434 19,811
As % of all contract IT jobs advertised in London 49.99% 47.82% 43.78%
Number of daily rates quoted 17,506 15,200 14,937
London median daily rate £520 £500 £450
Median daily rate % change year-on-year +4.00% +11.11% -
10th Percentile £363 £331 £313
90th Percentile £675 £650 £638
England median daily rate £475 £450 £425
% change year-on-year +5.56% +5.88% +6.25%
Number of hourly rates quoted 170 153 90
London median hourly rate £39.00 £40.00 £27.38
Median hourly rate % change year-on-year -2.50% +46.08% -0.43%
10th Percentile £18.00 £17.30 £14.11
90th Percentile £62.63 £52.40 £55.19
England median hourly rate £42.00 £40.00 £37.50
% change year-on-year +5.00% +6.67% +4.17%

Kotlin
Job Vacancy Trend in London

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

Job vacancy trend for Kotlin in London

Kotlin
Contractor Daily Rate Trend in London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Kotlin in London.

Contractor daily rate trend for Kotlin in London

Kotlin
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing Kotlin in London over the 6 months to 17 August 2018.

Contractor daily rate histogram for Kotlin in London

Kotlin
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Kotlin within the London region over the 6 months to 17 August 2018. 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London +34 85 £600 - 27
West London -28 2 £540 -0.92% 10
East London - 2 £550 - 5
Kotlin
England

For the 6 months to 17 August 2018, IT contractor 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 contract job ads across the London region with a requirement for Kotlin.

1 162 (67.22%) Java
2 143 (59.34%) Agile Software Development
3 121 (50.21%) Android
4 116 (48.13%) TDD
5 107 (44.40%) Android Development
6 81 (33.61%) RxJava
7 61 (25.31%) Dagger
8 56 (23.24%) Retrofit
8 56 (23.24%) BDD
9 53 (21.99%) Android SDK
10 46 (19.09%) RESTful
10 46 (19.09%) Finance
11 45 (18.67%) Banking
12 43 (17.84%) Java 8
13 42 (17.43%) Continuous Integration
14 41 (17.01%) Microservices
15 33 (13.69%) JavaScript
15 33 (13.69%) Web Services
15 33 (13.69%) Scala
16 32 (13.28%) Git (software)
17 31 (12.86%) Docker
17 31 (12.86%) Software Engineering
17 31 (12.86%) Greenfield Project
18 30 (12.45%) Open Source
19 29 (12.03%) Mobile App
19 29 (12.03%) Spring
20 28 (11.62%) Computer Science
21 27 (11.20%) Degree
22 26 (10.79%) Pair Programming
22 26 (10.79%) Scrum

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 17 (7.05%) Elasticsearch
2 3 (1.24%) ArcGIS
2 3 (1.24%) Cloud Foundry
2 3 (1.24%) WebLogic
2 3 (1.24%) WebSphere
3 2 (0.83%) Apache Spark
3 2 (0.83%) Confluence
3 2 (0.83%) Ethereum
4 1 (0.41%) Apache
4 1 (0.41%) CMS
4 1 (0.41%) JBoss
Business Applications
1 3 (1.24%) Distributed Ledger
Cloud Services
1 18 (7.47%) GitHub
2 14 (5.81%) Amazon AWS
3 7 (2.90%) Google Play
3 7 (2.90%) Microsoft Azure
4 2 (0.83%) Heroku
4 2 (0.83%) IaaS
4 2 (0.83%) npm
5 1 (0.41%) Firebase
5 1 (0.41%) Google Cloud Platform
Communications & Networking
1 14 (5.81%) HTTP
2 2 (0.83%) Internet
2 2 (0.83%) IPFS
3 1 (0.41%) HTTPS
Database & Business Intelligence
1 19 (7.88%) MongoDB
2 18 (7.47%) NoSQL
3 12 (4.98%) PostgreSQL
4 6 (2.49%) Blockchain
4 6 (2.49%) Relational Database
5 4 (1.66%) Big Data
6 3 (1.24%) MySQL
6 3 (1.24%) Redis
7 2 (0.83%) Amazon RDS
7 2 (0.83%) Apache Cassandra
7 2 (0.83%) Apache Hive
7 2 (0.83%) Hadoop
8 1 (0.41%) Aerospike
8 1 (0.41%) CockroachDB
8 1 (0.41%) MariaDB
8 1 (0.41%) SQLite
Development Applications
1 32 (13.28%) Git (software)
2 23 (9.54%) JUnit
3 21 (8.71%) Gradle
4 19 (7.88%) Android Studio
5 17 (7.05%) Jenkins
6 14 (5.81%) Mockito
7 10 (4.15%) Cucumber
8 9 (3.73%) JIRA
9 8 (3.32%) git-flow
9 8 (3.32%) Maven
10 6 (2.49%) CircleCI
10 6 (2.49%) IntelliJ
11 5 (2.07%) Selenium
11 5 (2.07%) WebDriver
12 4 (1.66%) Ant
12 4 (1.66%) JMeter
13 3 (1.24%) Appium
13 3 (1.24%) Capybara
13 3 (1.24%) Eclipse
14 2 (0.83%) UI Automator
General
1 46 (19.09%) Finance
2 45 (18.67%) Banking
3 11 (4.56%) Investment Banking
4 10 (4.15%) Retail
5 9 (3.73%) Automotive
6 8 (3.32%) Publishing
7 5 (2.07%) Retail Banking
8 4 (1.66%) Games
9 2 (0.83%) Back Office
9 2 (0.83%) Financial Institution
10 1 (0.41%) Advertising
10 1 (0.41%) Italian Language
10 1 (0.41%) Telecoms
Job Titles
1 194 (80.50%) Developer
2 95 (39.42%) Android Developer
3 74 (30.71%) Java Developer
4 37 (15.35%) Senior Developer
5 21 (8.71%) Senior Java Developer
6 15 (6.22%) Android Engineer
6 15 (6.22%) Senior Android Developer
7 12 (4.98%) Scala Developer
7 12 (4.98%) Software Engineer
8 11 (4.56%) Agile Developer
8 11 (4.56%) Java Scala Developer
9 10 (4.15%) Agile Java Developer
9 10 (4.15%) Java Engineer
10 9 (3.73%) Full Stack Developer
11 8 (3.32%) Java Software Engineer
12 7 (2.90%) Java Software Developer
12 7 (2.90%) Senior Software Engineer
13 6 (2.49%) Senior Java Engineer
13 6 (2.49%) Senior Java Scala Developer
13 6 (2.49%) Senior Scala Developer
Libraries, Frameworks & Software Standards
1 81 (33.61%) RxJava
2 61 (25.31%) Dagger
3 56 (23.24%) Retrofit
4 53 (21.99%) Android SDK
5 46 (19.09%) RESTful
6 33 (13.69%) Web Services
7 29 (12.03%) Spring
8 23 (9.54%) HTML
9 22 (9.13%) CSS
9 22 (9.13%) REST
10 17 (7.05%) JSON
11 16 (6.64%) HTML5
12 15 (6.22%) Spring Boot
13 12 (4.98%) Kafka
14 10 (4.15%) SOAP
15 9 (3.73%) AngularJS
15 9 (3.73%) gRPC
15 9 (3.73%) XML
16 8 (3.32%) Elastic Stack
16 8 (3.32%) React
Miscellaneous
1 31 (12.86%) Greenfield Project
2 29 (12.03%) Mobile App
3 28 (11.62%) Computer Science
4 24 (9.96%) User Experience
5 22 (9.13%) Fintech
6 12 (4.98%) Derivative
6 12 (4.98%) Equity Derivative
7 8 (3.32%) Mobile Payment
8 6 (2.49%) Algorithms
8 6 (2.49%) Analytical Skills
9 5 (2.07%) Data Structures
9 5 (2.07%) Video\Live Streaming
10 4 (1.66%) Over-the-Top Content
10 4 (1.66%) Video on Demand
11 3 (1.24%) Bitcoin
11 3 (1.24%) Enterprise Software
12 2 (0.83%) Blog
12 2 (0.83%) Foreign Exchange (FX)
12 2 (0.83%) Smartphone
12 2 (0.83%) Virtual Team
Operating Systems
1 121 (50.21%) Android
2 20 (8.30%) Apple iOS
2 20 (8.30%) Linux
3 8 (3.32%) Unix
4 2 (0.83%) Mac OS
5 1 (0.41%) Mac OS X
5 1 (0.41%) Windows
Processes & Methodologies
1 143 (59.34%) Agile Software Development
2 116 (48.13%) TDD
3 107 (44.40%) Android Development
4 56 (23.24%) BDD
5 42 (17.43%) Continuous Integration
6 41 (17.01%) Microservices
7 31 (12.86%) Software Engineering
8 30 (12.45%) Open Source
9 26 (10.79%) DevOps
9 26 (10.79%) Pair Programming
9 26 (10.79%) Scrum
10 24 (9.96%) Continuous Delivery
11 22 (9.13%) OOP
11 22 (9.13%) Test Automation
12 21 (8.71%) Mobile Development
13 20 (8.30%) Unit Testing
14 17 (7.05%) Kanban
15 16 (6.64%) OO
16 15 (6.22%) Mentoring
17 14 (5.81%) Mathematics
Programming Languages
1 162 (67.22%) Java
2 43 (17.84%) Java 8
3 33 (13.69%) JavaScript
3 33 (13.69%) Scala
4 21 (8.71%) Go
5 17 (7.05%) SQL
6 15 (6.22%) Python
7 12 (4.98%) Apple Swift
8 10 (4.15%) Bash Shell
8 10 (4.15%) C
8 10 (4.15%) Groovy
9 9 (3.73%) C++
10 8 (3.32%) Shell Script
11 7 (2.90%) Clojure
12 6 (2.49%) Objective-C
13 5 (2.07%) C#
13 5 (2.07%) PHP
14 3 (1.24%) ES6
14 3 (1.24%) Solidity
15 2 (0.83%) Java 9
Qualifications
1 27 (11.20%) Degree
2 12 (4.98%) Computer Science Degree
3 2 (0.83%) Master's Degree
Quality Assurance & Compliance
1 11 (4.56%) QA
2 5 (2.07%) PCI DSS
System Software
1 31 (12.86%) Docker
Systems Management
1 26 (10.79%) Kubernetes
2 8 (3.32%) Grafana
2 8 (3.32%) Kibana
2 8 (3.32%) logstash
3 2 (0.83%) Consul
3 2 (0.83%) Docker Swarm
3 2 (0.83%) Mesos
3 2 (0.83%) Terraform
4 1 (0.41%) Marathon
Vendors
1 14 (5.81%) Google
2 8 (3.32%) AppDynamics
2 8 (3.32%) Splunk
3 1 (0.41%) Oracle
3 1 (0.41%) Samsung
3 1 (0.41%) Sybase