Period
to 25 February 2020

The following table provides summary statistics for contract job vacancies 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 25 February 2020 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
UK
6 months to
25 Feb 2020
Same period 2019 Same period 2018
Rank 316 532 690
Rank change year-on-year +216 +158 +171
Contract jobs citing Kotlin 521 389 192
As % of all contract IT jobs advertised in the UK 0.76% 0.40% 0.19%
As % of the Programming Languages category 1.87% 0.90% 0.46%
Number of daily rates quoted 353 306 150
UK median daily rate £500 £520 £475
Median daily rate % change year-on-year -3.85% +9.47% -24.00%
10th Percentile £375 £400 £363
90th Percentile £713 £675 £619
UK excluding London median daily rate £450 £413 £413
% change year-on-year +9.09% - -
Number of hourly rates quoted 9 2 1
UK median hourly rate £55.00 £63.65 £25.00
Median hourly rate % change year-on-year -13.59% +154.60% -
10th Percentile £42.40 £61.52 £24.50
90th Percentile £66.75 £67.07 £25.50
UK excluding London median hourly rate £44.50 £63.65 £25.00
% change year-on-year -30.09% +154.60% -

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 with a requirement for coding skills.

All Programming Languages
UK
Contract vacancies with a requirement for coding skills 27,875 43,117 42,069
As % of all contract IT jobs advertised in the UK 40.83% 43.87% 42.07%
Number of daily rates quoted 18,950 30,253 29,576
UK median daily rate £475 £475 £460
Median daily rate % change year-on-year - +3.26% +8.24%
10th Percentile £325 £324 £310
90th Percentile £650 £650 £638
UK excluding London median daily rate £430 £425 £400
% change year-on-year +1.18% +6.25% +4.71%
Number of hourly rates quoted 592 692 765
UK median hourly rate £42.50 £42.50 £40.00
Median hourly rate % change year-on-year - +6.25% -
10th Percentile £17.50 £17.25 £16.80
90th Percentile £55.00 £52.50 £52.50
UK excluding London median hourly rate £41.00 £42.50 £40.00
% change year-on-year -3.53% +6.25% -

Kotlin
Job Vacancy Trend

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

Job vacancy trend for Kotlin in the UK

Kotlin
Contractor Daily Rate Trend

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

Contractor daily rate trend for Kotlin in the UK

Kotlin
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing Kotlin over the 6 months to 25 February 2020.

Contractor daily rate histogram for Kotlin in the UK

Kotlin
Contractor Hourly Rate Trend

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Kotlin.

Contractor hourly rate trend for Kotlin in the UK

Kotlin
Contractor Hourly Rate Histogram

The hourly rate distribution of IT jobs citing Kotlin over the 6 months to 25 February 2020.

Contractor hourly rate histogram for Kotlin in the UK

Kotlin
Top 14 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Kotlin within the UK over the 6 months to 25 February 2020. 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
England +178 465 £500 -4.76% 243
London +126 322 £525 -4.55% 150
UK excluding London +194 176 £450 +9.09% 105
North of England +114 70 £475 +18.75% 29
Scotland +50 47 £488 +21.88% 11
Yorkshire +84 41 £478 +12.35% 10
South East +80 39 £425 -5.56% 23
North West +29 19 £450 +12.50% 13
South West +22 11 £493 -21.20% 10
North East - 10 £363 - 6
East of England +25 6 £430 +72.00% 20
West Midlands +58 2 £525 +23.53% 5
Midlands +40 2 £525 +65.09% 10
Wales +31 1 £425 -5.56% 2

For the 6 months to 25 February 2020, 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 with a requirement for Kotlin.

1 360 (69.10%) Java
2 292 (56.05%) Android
3 244 (46.83%) Android Development
4 229 (43.95%) Agile Software Development
5 120 (23.03%) TDD
6 118 (22.65%) Banking
7 110 (21.11%) Software Engineering
8 108 (20.73%) Microservices
9 103 (19.77%) Finance
10 96 (18.43%) Mobile App
11 83 (15.93%) Apple iOS
12 81 (15.55%) Spring
13 78 (14.97%) AWS
13 78 (14.97%) JavaScript
14 74 (14.20%) Azure
14 74 (14.20%) RxJava
15 72 (13.82%) Git (software)
16 71 (13.63%) Web Services
17 64 (12.28%) RESTful
17 64 (12.28%) GCP
18 63 (12.09%) Apple Swift
18 63 (12.09%) Scala
18 63 (12.09%) Python
19 62 (11.90%) SQL
20 61 (11.71%) Google
21 58 (11.13%) Jenkins
22 57 (10.94%) MongoDB
22 57 (10.94%) Mobile Development
23 55 (10.56%) REST
24 54 (10.36%) Node.js

Kotlin
Co-occurring IT Skills 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 19 (3.65%) Confluence
2 16 (3.07%) Apache Spark
3 13 (2.50%) WebLogic
3 13 (2.50%) WebSphere
4 9 (1.73%) OpenStack
5 7 (1.34%) Cloud Foundry
6 5 (0.96%) Elasticsearch
7 4 (0.77%) nginx
8 1 (0.19%) Apache Solr
8 1 (0.19%) Hyperledger
Applications
1 2 (0.38%) Zeplin
2 1 (0.19%) Sketch
Business Applications
1 27 (5.18%) FINCAD Analytics
2 7 (1.34%) R3 Corda
3 1 (0.19%) Distributed Ledger
3 1 (0.19%) Payment Gateway
Cloud Services
1 78 (14.97%) AWS
2 74 (14.20%) Azure
3 64 (12.28%) GCP
4 38 (7.29%) GitHub
5 27 (5.18%) AWS Step Functions
6 18 (3.45%) Amazon ECS
7 17 (3.26%) Amazon SQS
8 14 (2.69%) Amazon Kinesis
9 12 (2.30%) Serverless
10 11 (2.11%) AWS Lambda
11 7 (1.34%) Firebase
12 5 (0.96%) Google Play
12 5 (0.96%) Slack
13 4 (0.77%) Amazon EC2
13 4 (0.77%) SaaS
14 3 (0.58%) Amazon S3
15 2 (0.38%) Amazon ELB
15 2 (0.38%) BrowserStack
15 2 (0.38%) OpenShift
16 1 (0.19%) Sauce Labs
Communications & Networking
1 28 (5.37%) HTTP
2 10 (1.92%) HTTPS
3 4 (0.77%) DNS
4 3 (0.58%) Bluetooth
5 1 (0.19%) NFC
Database & Business Intelligence
1 57 (10.94%) MongoDB
2 49 (9.40%) NoSQL
3 45 (8.64%) Apache Cassandra
4 37 (7.10%) HBase
5 34 (6.53%) PostgreSQL
6 33 (6.33%) Neo4j
7 32 (6.14%) Relational Database
8 28 (5.37%) Redis
9 27 (5.18%) Amazon Athena
9 27 (5.18%) Amazon DynamoDB
9 27 (5.18%) Couchbase
9 27 (5.18%) DB2
9 27 (5.18%) MariaDB
9 27 (5.18%) RDBMS
10 21 (4.03%) Amazon Aurora
11 16 (3.07%) Apache Hive
11 16 (3.07%) Hadoop
12 15 (2.88%) Amazon Redshift
13 14 (2.69%) Flink
14 13 (2.50%) SQLite
Development Applications
1 72 (13.82%) Git (software)
2 58 (11.13%) Jenkins
3 50 (9.60%) Gradle
4 43 (8.25%) Android Studio
5 37 (7.10%) JUnit
6 36 (6.91%) JIRA
7 26 (4.99%) git-flow
8 24 (4.61%) Cucumber
9 23 (4.41%) Mockito
10 21 (4.03%) Maven
11 14 (2.69%) Ant
11 14 (2.69%) JMeter
12 12 (2.30%) GitLab
13 11 (2.11%) Xcode
14 10 (1.92%) TeamCity
15 8 (1.54%) Bitbucket
16 7 (1.34%) Calabash
16 7 (1.34%) Gatling
16 7 (1.34%) Selenium
17 5 (0.96%) Subversion
General
1 118 (22.65%) Banking
2 103 (19.77%) Finance
3 53 (10.17%) Front Office
4 17 (3.26%) Investment Banking
5 13 (2.50%) Public Sector
6 12 (2.30%) Telecoms
7 10 (1.92%) Marketing
8 9 (1.73%) Games
9 8 (1.54%) Electronics
9 8 (1.54%) Retail
10 7 (1.34%) Retail Banking
11 6 (1.15%) Advertising
11 6 (1.15%) Publishing
12 4 (0.77%) Local Government
12 4 (0.77%) Manufacturing
13 3 (0.58%) Automotive
14 2 (0.38%) Back Office
14 2 (0.38%) Financial Institution
15 1 (0.19%) Aerospace
15 1 (0.19%) Pharmaceutical
Job Titles
1 398 (76.39%) Developer
2 231 (44.34%) Android Developer
3 81 (15.55%) Java Developer
4 72 (13.82%) Senior Developer
5 33 (6.33%) Senior Android Developer
6 31 (5.95%) Java Engineer
7 29 (5.57%) Software Engineer
8 26 (4.99%) iOS Developer
9 24 (4.61%) Mobile Developer
10 23 (4.41%) Senior Java Developer
11 22 (4.22%) AWS Developer
12 18 (3.45%) Front Office Developer
13 17 (3.26%) Android Engineer
14 16 (3.07%) Agile Developer
14 16 (3.07%) AWS Engineer
14 16 (3.07%) Java Software Engineer
15 14 (2.69%) iOS Android Developer
16 13 (2.50%) NoSQL Developer
16 13 (2.50%) NoSQL Engineer
16 13 (2.50%) React Developer
Libraries, Frameworks & Software Standards
1 81 (15.55%) Spring
2 74 (14.20%) RxJava
3 71 (13.63%) Web Services
4 64 (12.28%) RESTful
5 55 (10.56%) REST
6 54 (10.36%) Node.js
7 52 (9.98%) React
8 49 (9.40%) Android SDK
8 49 (9.40%) Dagger
9 46 (8.83%) J2EE
10 43 (8.25%) JSON
11 42 (8.06%) Kafka
12 37 (7.10%) Spring Boot
13 30 (5.76%) XML
14 28 (5.37%) AngularJS
14 28 (5.37%) CSS
15 27 (5.18%) HTML
16 26 (4.99%) Retrofit
17 23 (4.41%) SOAP
18 22 (4.22%) GraphQL
Miscellaneous
1 96 (18.43%) Mobile App
2 52 (9.98%) User Experience
3 48 (9.21%) Foreign Exchange (FX)
4 46 (8.83%) Greenfield Project
5 45 (8.64%) Fixed Income
6 44 (8.45%) Derivative
7 42 (8.06%) Hedge funds
8 27 (5.18%) Equity Derivative
9 25 (4.80%) Mobile Banking
10 24 (4.61%) Equities
11 23 (4.41%) Market Risk
12 22 (4.22%) Data Structures
13 16 (3.07%) Enterprise Software
14 15 (2.88%) Blog
15 14 (2.69%) Analytical Skills
16 13 (2.50%) Self-Motivation
17 12 (2.30%) Mobile Payment
18 9 (1.73%) Public Cloud
19 8 (1.54%) Grid Computing
20 7 (1.34%) Client/Server
Operating Systems
1 292 (56.05%) Android
2 83 (15.93%) Apple iOS
3 26 (4.99%) Linux
4 8 (1.54%) Unix
5 6 (1.15%) Ubuntu
5 6 (1.15%) Windows
6 1 (0.19%) Mac OS
6 1 (0.19%) Mac OS X
Processes & Methodologies
1 244 (46.83%) Android Development
2 229 (43.95%) Agile Software Development
3 120 (23.03%) TDD
4 110 (21.11%) Software Engineering
5 108 (20.73%) Microservices
6 57 (10.94%) Mobile Development
7 48 (9.21%) Scrum
8 47 (9.02%) DevOps
9 46 (8.83%) Continuous Integration
10 45 (8.64%) BDD
10 45 (8.64%) Open Source
11 44 (8.45%) Pair Programming
12 42 (8.06%) Asset Management
13 40 (7.68%) Test Automation
14 39 (7.49%) Analytics
15 38 (7.29%) Unit Testing
16 36 (6.91%) Fintech
17 35 (6.72%) MVVM
18 34 (6.53%) Migration
19 33 (6.33%) iOS Development
Programming Languages
1 360 (69.10%) Java
2 78 (14.97%) JavaScript
3 63 (12.09%) Apple Swift
3 63 (12.09%) Python
3 63 (12.09%) Scala
4 62 (11.90%) SQL
5 32 (6.14%) Objective-C
6 28 (5.37%) Java 8
7 21 (4.03%) Go
8 17 (3.26%) C#
8 17 (3.26%) Clojure
9 15 (2.88%) Bash Shell
10 14 (2.69%) TypeScript
11 11 (2.11%) ClojureScript
12 10 (1.92%) Ruby
13 9 (1.73%) C++
13 9 (1.73%) Haskell
14 8 (1.54%) Perl
15 4 (0.77%) PHP
15 4 (0.77%) T-SQL
Qualifications
1 19 (3.65%) Degree
2 9 (1.73%) Computer Science Degree
3 5 (0.96%) Master's Degree
4 4 (0.77%) MCSE
4 4 (0.77%) Microsoft Certification
5 3 (0.58%) BPSS Clearance
6 2 (0.38%) Security Cleared
7 1 (0.19%) ISTQB
7 1 (0.19%) ISTQB Advanced Certification
7 1 (0.19%) ISTQB Foundation Certification
7 1 (0.19%) SC Cleared
Quality Assurance & Compliance
1 5 (0.96%) PSD2
2 1 (0.19%) PCI DSS
2 1 (0.19%) QA
2 1 (0.19%) WCAG
System Software
1 51 (9.79%) Docker
2 16 (3.07%) HDFS
3 4 (0.77%) Active Directory
4 1 (0.19%) Firmware
4 1 (0.19%) Virtual Machines
4 1 (0.19%) VMware Infrastructure
Systems Management
1 44 (8.45%) Kubernetes
2 25 (4.80%) Terraform
3 14 (2.69%) Hadoop YARN
4 11 (2.11%) Grafana
5 10 (1.92%) Ansible
5 10 (1.92%) Prometheus
6 4 (0.77%) HockeyApp
7 3 (0.58%) Opscode Chef
8 2 (0.38%) Consul
8 2 (0.38%) Puppet
9 1 (0.19%) Graphite
9 1 (0.19%) Nessus
9 1 (0.19%) Rancher
Vendors
1 61 (11.71%) Google
2 33 (6.33%) Oracle
3 27 (5.18%) Sybase
4 9 (1.73%) CA
4 9 (1.73%) CA Agile Central
5 8 (1.54%) Perforce
5 8 (1.54%) Tableau
6 6 (1.15%) Microsoft
7 5 (0.96%) AppDynamics
7 5 (0.96%) Splunk
8 4 (0.77%) Facebook
8 4 (0.77%) SAP
9 3 (0.58%) VMware
9 3 (0.58%) Xamarin
10 2 (0.38%) Apple
10 2 (0.38%) MuleSoft
10 2 (0.38%) Reuters
10 2 (0.38%) Salesforce.com
10 2 (0.38%) SaltStack
10 2 (0.38%) Teradata