Period
to 20 February 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 20 February 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
20 Feb 2018
Same period 2017 Same period 2016
Rank 498 586 -
Rank change year-on-year +88 - -
Contract jobs citing Kotlin 119 7 0
As % of all contract IT jobs advertised in London 0.25% 0.017% -
As % of the Programming Languages category 0.53% 0.038% -
Number of daily rates quoted 94 6 0
London median daily rate £533 £625 -
Median daily rate % change year-on-year -14.80% - -
England median daily rate £476 £625 -
% change year-on-year -23.92% - -
Number of hourly rates quoted 0 0 0
London median hourly rate - - -
England median hourly rate £25.00 - -

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 22,379 18,612 19,053
As % of all contract IT jobs advertised in London 47.68% 45.36% 43.20%
Number of daily rates quoted 17,194 13,913 14,296
London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +2.86%
10th Percentile £350 £324 £306
90th Percentile £675 £638 £638
England median daily rate £475 £425 £420
% change year-on-year +11.76% +1.19% +5.00%
Number of hourly rates quoted 174 124 125
London median hourly rate £33.66 £42.00 £29.64
Median hourly rate % change year-on-year -19.87% +41.70% +3.10%
10th Percentile £17.75 £16.74 £14.05
90th Percentile £55.40 £65.00 £55.00
England median hourly rate £40.00 £40.00 £37.50
% change year-on-year - +6.67% +11.94%

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 20 February 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 20 February 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 -3 32 £525 -16.00% 13
West London - 12 £540 - 6
Kotlin
England

For the 6 months to 20 February 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 99 (83.19%) Java
2 64 (53.78%) Agile Software Development
3 60 (50.42%) TDD
4 49 (41.18%) Android
5 48 (40.34%) Scala
5 48 (40.34%) Android Development
6 35 (29.41%) Microservices
7 34 (28.57%) DevOps
8 32 (26.89%) RESTful
9 30 (25.21%) Continuous Integration
10 29 (24.37%) Finance
10 29 (24.37%) BDD
11 27 (22.69%) REST
12 26 (21.85%) SQL
13 25 (21.01%) Kanban
13 25 (21.01%) Continuous Delivery
14 24 (20.17%) RxJava
15 23 (19.33%) Test Automation
15 23 (19.33%) Web Services
15 23 (19.33%) Banking
16 22 (18.49%) JavaScript
16 22 (18.49%) Spring
16 22 (18.49%) Software Engineering
17 21 (17.65%) NoSQL
18 19 (15.97%) Android SDK
18 19 (15.97%) Scrum
19 18 (15.13%) Pair Programming
19 18 (15.13%) Linux
19 18 (15.13%) Groovy
20 17 (14.29%) Unix

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 14 (11.76%) Elasticsearch
2 4 (3.36%) Apache
3 3 (2.52%) MQSeries
4 2 (1.68%) Apache Spark
4 2 (1.68%) Cloud Foundry
4 2 (1.68%) Ethereum
5 1 (0.84%) Jupyter
5 1 (0.84%) Mule
5 1 (0.84%) SAS
Business Applications
1 2 (1.68%) R3 Corda
2 1 (0.84%) Distributed Ledger
Cloud Services
1 10 (8.40%) Amazon AWS
2 6 (5.04%) Google Play
3 3 (2.52%) Firebase
4 2 (1.68%) GitHub
4 2 (1.68%) Microsoft Azure
5 1 (0.84%) Amazon S3
5 1 (0.84%) Google Cloud Platform
5 1 (0.84%) IaaS
Communications & Networking
1 8 (6.72%) HTTP
Database & Business Intelligence
1 21 (17.65%) NoSQL
2 17 (14.29%) MongoDB
3 10 (8.40%) Blockchain
4 9 (7.56%) Relational Database
5 6 (5.04%) PostgreSQL
6 4 (3.36%) Hazelcast
7 3 (2.52%) Apache Cassandra
7 3 (2.52%) InfluxDB
8 2 (1.68%) Data Warehouse
8 2 (1.68%) Hadoop
8 2 (1.68%) SQLite
9 1 (0.84%) Amazon RDS
9 1 (0.84%) Amazon Redshift
9 1 (0.84%) Apache Zeppelin
9 1 (0.84%) Big Data
9 1 (0.84%) BigQuery
9 1 (0.84%) RDBMS
9 1 (0.84%) SQL Server
Development Applications
1 16 (13.45%) IntelliJ
2 13 (10.92%) Cucumber
2 13 (10.92%) JUnit
2 13 (10.92%) Mockito
3 9 (7.56%) Git (software)
4 7 (5.88%) Android Studio
5 6 (5.04%) Maven
6 5 (4.20%) Jenkins
7 3 (2.52%) Appium
7 3 (2.52%) Eclipse
8 2 (1.68%) Gradle
8 2 (1.68%) Robolectric
9 1 (0.84%) Ant
9 1 (0.84%) Calabash
9 1 (0.84%) JIRA
9 1 (0.84%) Team Foundation Server
9 1 (0.84%) Xcode
General
1 29 (24.37%) Finance
2 23 (19.33%) Banking
3 14 (11.76%) Games
4 13 (10.92%) Investment Banking
5 8 (6.72%) Telecoms
6 3 (2.52%) Automotive
6 3 (2.52%) Retail
6 3 (2.52%) Retail Banking
7 1 (0.84%) Financial Institution
7 1 (0.84%) Front Office
7 1 (0.84%) Publishing
Job Titles
1 104 (87.39%) Developer
2 57 (47.90%) Java Developer
3 41 (34.45%) Android Developer
4 36 (30.25%) Senior Developer
5 30 (25.21%) Senior Java Developer
6 10 (8.40%) Java Scala Developer
6 10 (8.40%) Scala Developer
6 10 (8.40%) Senior Java Scala Developer
6 10 (8.40%) Senior Scala Developer
7 8 (6.72%) Blockchain Developer
8 7 (5.88%) Low Latency Java Developer
9 6 (5.04%) Java Android Developer
10 5 (4.20%) Android Engineer
10 5 (4.20%) AWS Developer
11 4 (3.36%) iOS Android Developer
11 4 (3.36%) iOS Developer
11 4 (3.36%) Mobile Developer
11 4 (3.36%) Senior Android Developer
11 4 (3.36%) Software Developer
11 4 (3.36%) Web Developer
Libraries, Frameworks & Software Standards
1 32 (26.89%) RESTful
2 27 (22.69%) REST
3 24 (20.17%) RxJava
4 23 (19.33%) Web Services
5 22 (18.49%) Spring
6 19 (15.97%) Android SDK
7 17 (14.29%) Retrofit
8 16 (13.45%) Dagger
9 14 (11.76%) SOAP
10 13 (10.92%) Dropwizard
10 13 (10.92%) Elastic Stack
11 12 (10.08%) Grails
12 11 (9.24%) HTML
13 8 (6.72%) CSS
13 8 (6.72%) JSON
14 7 (5.88%) Hibernate
14 7 (5.88%) HTML5
15 6 (5.04%) XML
16 5 (4.20%) Flask
16 5 (4.20%) Material Design
Miscellaneous
1 16 (13.45%) User Experience
2 15 (12.61%) Derivative
2 15 (12.61%) Equity Derivative
3 11 (9.24%) Fintech
3 11 (9.24%) Mobile App
4 6 (5.04%) Computer Science
4 6 (5.04%) Greenfield Project
5 3 (2.52%) Data Structures
5 3 (2.52%) Equities
5 3 (2.52%) Reference Data
5 3 (2.52%) Smartphone
6 2 (1.68%) Animation
6 2 (1.68%) Virtual Team
7 1 (0.84%) Bitcoin
7 1 (0.84%) Cloud Native
7 1 (0.84%) Wiki
Operating Systems
1 49 (41.18%) Android
2 18 (15.13%) Linux
3 17 (14.29%) Unix
4 9 (7.56%) Apple iOS
5 1 (0.84%) Windows
Processes & Methodologies
1 64 (53.78%) Agile Software Development
2 60 (50.42%) TDD
3 48 (40.34%) Android Development
4 35 (29.41%) Microservices
5 34 (28.57%) DevOps
6 30 (25.21%) Continuous Integration
7 29 (24.37%) BDD
8 25 (21.01%) Continuous Delivery
8 25 (21.01%) Kanban
9 23 (19.33%) Test Automation
10 22 (18.49%) Software Engineering
11 19 (15.97%) Scrum
12 18 (15.13%) Pair Programming
13 15 (12.61%) Functional Programming
13 15 (12.61%) Open Source
14 14 (11.76%) Performance Tuning
15 13 (10.92%) Domain-Driven Design
15 13 (10.92%) High Availability
15 13 (10.92%) User Stories
16 12 (10.08%) OOP
Programming Languages
1 99 (83.19%) Java
2 48 (40.34%) Scala
3 26 (21.85%) SQL
4 22 (18.49%) JavaScript
5 18 (15.13%) Groovy
6 15 (12.61%) Bash Shell
7 14 (11.76%) Shell Script
8 11 (9.24%) Clojure
9 9 (7.56%) Python
10 4 (3.36%) Apple Swift
11 3 (2.52%) Jython
11 3 (2.52%) R
12 2 (1.68%) C#
12 2 (1.68%) Objective-C
12 2 (1.68%) TypeScript
13 1 (0.84%) ClojureScript
13 1 (0.84%) Perl
Qualifications
1 9 (7.56%) Degree
2 6 (5.04%) Computer Science Degree
3 1 (0.84%) Master's Degree
3 1 (0.84%) PhD
Quality Assurance & Compliance
1 12 (10.08%) QA
2 1 (0.84%) SLA
System Software
1 6 (5.04%) Docker
Systems Management
1 16 (13.45%) Grafana
2 13 (10.92%) Kibana
2 13 (10.92%) logstash
3 7 (5.88%) Ansible
4 4 (3.36%) Opscode Chef
4 4 (3.36%) Puppet
5 3 (2.52%) Kubernetes
6 1 (0.84%) Marathon
6 1 (0.84%) Mesos
Vendors
1 13 (10.92%) AppDynamics
1 13 (10.92%) Google
1 13 (10.92%) Splunk
2 3 (2.52%) Samsung
3 2 (1.68%) Microsoft
4 1 (0.84%) Capita
4 1 (0.84%) Oracle