Period
to 27 January 2022

The following table provides summary statistics for contract job vacancies advertised in England 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 27 January 2022 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 > England
6 months to
27 Jan 2022
Same period 2021 Same period 2020
Rank 362 168 342
Rank change year-on-year -194 +174 +183
Contract jobs citing Kotlin 482 584 466
As % of all contract jobs advertised in England 0.69% 1.68% 0.72%
As % of the Programming Languages category 1.79% 3.99% 1.75%
Number of daily rates quoted 400 466 323
10th Percentile £437 £400 £375
25th Percentile £498 £450 £413
Median daily rate (50th Percentile) £580 £525 £500
Median % change year-on-year +10.48% +5.00% -4.76%
75th Percentile £688 £638 £588
90th Percentile £738 £713 £713
UK median daily rate £588 £525 £500
% change year-on-year +11.90% +5.00% -4.76%
Number of hourly rates quoted 5 2 6
10th Percentile £65.08 £44.20 £42.25
25th Percentile £66.70 £47.50 £42.98
Median hourly rate £70.90 £53.00 £48.85
Median % change year-on-year +33.77% +8.50% -24.85%
75th Percentile £80.00 £58.50 £61.13
90th Percentile £137.00 £61.80 £71.25
UK median hourly rate £70.90 £45.00 £48.85
% change year-on-year +57.56% -7.88% -24.85%

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 England with a requirement for coding skills.

All Programming Languages
England
Contract vacancies with a requirement for coding skills 26,999 14,630 26,675
As % of all contract IT jobs advertised in England 38.65% 42.01% 41.05%
Number of daily rates quoted 19,923 10,412 18,902
10th Percentile £363 £313 £325
25th Percentile £450 £390 £400
Median daily rate (50th Percentile) £550 £482 £488
Median % change year-on-year +14.05% -1.08% +1.56%
75th Percentile £650 £588 £575
90th Percentile £738 £675 £650
UK median daily rate £538 £475 £475
% change year-on-year +13.16% - -
Number of hourly rates quoted 403 353 481
10th Percentile £19.52 £14.10 £16.50
25th Percentile £32.50 £24.00 £23.00
Median hourly rate £49.00 £42.50 £43.50
Median % change year-on-year +15.29% -2.30% +2.35%
75th Percentile £60.00 £50.00 £50.00
90th Percentile £71.50 £58.75 £55.00
UK median hourly rate £49.00 £42.50 £43.00
% change year-on-year +15.29% -1.16% +1.85%

Kotlin
Job Vacancy Trend in England

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

Job vacancy trend for Kotlin in England

Kotlin
Contractor Daily Rate Trend in England

3-month moving average daily rate quoted in jobs citing Kotlin in England.

Daily rate trend for Kotlin in England

Kotlin
Daily Rate Histogram in England

Daily rate distribution for jobs citing Kotlin in England over the 6 months to 27 January 2022.

Daily rate histogram for Kotlin in England

Kotlin
Contractor Hourly Rate Trend in England

3-month moving average hourly rates quoted in jobs citing Kotlin in England.

Hourly rate trend for Kotlin in England

Kotlin
Hourly Rate Histogram in England

Hourly rate distribution of jobs citing Kotlin in England over the 6 months to 27 January 2022.

Hourly rate histogram for Kotlin in England

Kotlin
Contract Job Locations in England

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Kotlin within the England region over the 6 months to 27 January 2022. 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
Jobs
London -160 391 £613 +11.36% 172
South East -66 19 £548 +10.61% 15
North of England -94 17 £500 +11.11% 28
Yorkshire -72 11 £500 +11.11% 5
Midlands - 9 £468 - 14
South West -49 8 £525 +5.00% 12
North West -48 6 £513 +16.21% 21
West Midlands - 5 £413 - 9
East Midlands - 4 £513 - 5
East of England - 2 - - 13
Kotlin
UK

For the 6 months to 27 January 2022, 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 England region with a requirement for Kotlin.

1 364 (75.52%) Java
2 222 (46.06%) Agile Software Development
3 179 (37.14%) Android
4 150 (31.12%) CI/CD
5 148 (30.71%) Finance
6 147 (30.50%) Software Engineering
7 140 (29.05%) AWS
7 140 (29.05%) Android Development
8 138 (28.63%) TDD
9 116 (24.07%) JavaScript
10 105 (21.78%) React
11 94 (19.50%) Python
12 90 (18.67%) Docker
13 87 (18.05%) Spring
14 86 (17.84%) Kubernetes
14 86 (17.84%) Microservices
15 81 (16.80%) Full Stack Development
16 80 (16.60%) GCP
17 77 (15.98%) DevOps
18 75 (15.56%) Azure
19 71 (14.73%) SQL
19 71 (14.73%) TypeScript
20 69 (14.32%) AngularJS
21 65 (13.49%) Spring Boot
21 65 (13.49%) Social Skills
22 64 (13.28%) Mobile App
23 63 (13.07%) Scala
24 62 (12.86%) Scrum
25 59 (12.24%) Vue.js
26 58 (12.03%) Front Office

Kotlin
Co-occurring IT Skills in England 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 18 (3.73%) Apache Airflow
2 15 (3.11%) Confluence
3 13 (2.70%) Apache
4 7 (1.45%) Cloud Foundry
5 5 (1.04%) Elasticsearch
6 4 (0.83%) Apache Spark
7 3 (0.62%) CMS
8 2 (0.41%) OpenStack
8 2 (0.41%) Tomcat
Business Applications
1 2 (0.41%) Distributed Ledger
1 2 (0.41%) Shopify
2 1 (0.21%) Magento
Cloud Services
1 140 (29.05%) AWS
2 80 (16.60%) GCP
3 75 (15.56%) Azure
4 50 (10.37%) Serverless
5 45 (9.34%) AWS Lambda
6 36 (7.47%) Amazon S3
7 32 (6.64%) Amazon EC2
8 21 (4.36%) GitHub
9 10 (2.07%) AWS CloudFormation
10 8 (1.66%) Google Play
11 7 (1.45%) Firebase
11 7 (1.45%) SaaS
12 6 (1.24%) Bitrise
12 6 (1.24%) OpenShift
13 5 (1.04%) Snowflake
14 4 (0.83%) Amazon ECS
14 4 (0.83%) npm
14 4 (0.83%) Slack
15 3 (0.62%) Amazon Kinesis
15 3 (0.62%) GitHub Actions
Communications & Networking
1 24 (4.98%) HTTP
2 7 (1.45%) MQTT
3 2 (0.41%) DVB
3 2 (0.41%) HTTPS
4 1 (0.21%) 2G
4 1 (0.21%) Bluetooth
4 1 (0.21%) Intranet
4 1 (0.21%) SSL
Database & Business Intelligence
1 38 (7.88%) Amazon DynamoDB
2 23 (4.77%) NoSQL
3 20 (4.15%) PostgreSQL
4 18 (3.73%) Redis
5 16 (3.32%) SQL Server
6 15 (3.11%) Couchbase
7 13 (2.70%) Amazon Athena
7 13 (2.70%) Apache Ignite
7 13 (2.70%) MongoDB
8 10 (2.07%) Relational Database
9 9 (1.87%) Hazelcast
10 8 (1.66%) Apache Cassandra
10 8 (1.66%) Hadoop
11 7 (1.45%) Data Warehouse
12 6 (1.24%) InfluxDB
12 6 (1.24%) RDBMS
12 6 (1.24%) SQLite
13 5 (1.04%) BigQuery
13 5 (1.04%) Blockchain
13 5 (1.04%) Data Lake
Development Applications
1 56 (11.62%) Git (software)
2 52 (10.79%) Jenkins
3 35 (7.26%) Android Studio
4 23 (4.77%) Gradle
5 22 (4.56%) JUnit
6 21 (4.36%) JIRA
7 19 (3.94%) Maven
8 16 (3.32%) Xcode
9 12 (2.49%) Atlassian Bamboo
10 8 (1.66%) CircleCI
11 7 (1.45%) Mockito
12 6 (1.24%) Cucumber
12 6 (1.24%) GitLab
13 5 (1.04%) Burp Suite
13 5 (1.04%) git-flow
13 5 (1.04%) Postman
13 5 (1.04%) Spock
14 4 (0.83%) IDA Disassembler
14 4 (0.83%) SonarQube
14 4 (0.83%) Sonatype Nexus
General
1 148 (30.71%) Finance
2 65 (13.49%) Social Skills
3 58 (12.03%) Front Office
4 56 (11.62%) Banking
5 26 (5.39%) Games
6 20 (4.15%) Retail
7 15 (3.11%) Inclusion and Diversity
7 15 (3.11%) Manufacturing
8 14 (2.90%) Investment Banking
9 13 (2.70%) Analytical Skills
10 10 (2.07%) Public Sector
11 8 (1.66%) Publishing
11 8 (1.66%) Telecoms
12 6 (1.24%) Automotive
12 6 (1.24%) Electronics
12 6 (1.24%) Marketing
12 6 (1.24%) Retail Banking
13 3 (0.62%) Financial Institution
13 3 (0.62%) Law
14 2 (0.41%) Military
Job Titles
1 359 (74.48%) Developer
2 127 (26.35%) Android Developer
3 72 (14.94%) Java Developer
4 58 (12.03%) Senior Developer
5 40 (8.30%) Software Engineer
6 35 (7.26%) Python Engineer
7 34 (7.05%) Developer/Software Engineer
8 33 (6.85%) Python Developer
8 33 (6.85%) React Developer
9 32 (6.64%) Python Software Engineer
10 24 (4.98%) Lead Developer
11 23 (4.77%) Backend Developer
11 23 (4.77%) Java Engineer
11 23 (4.77%) Senior Java Developer
12 21 (4.36%) AWS Engineer
12 21 (4.36%) JavaScript Developer
13 19 (3.94%) JavaScript Engineer
13 19 (3.94%) Mobile Developer
13 19 (3.94%) Senior Java Engineer
14 18 (3.73%) Senior Android Developer
Libraries, Frameworks & Software Standards
1 105 (21.78%) React
2 87 (18.05%) Spring
3 69 (14.32%) AngularJS
4 65 (13.49%) Spring Boot
5 59 (12.24%) Vue.js
6 54 (11.20%) REST
7 44 (9.13%) Node.js
8 43 (8.92%) Kafka
9 37 (7.68%) RxJava
10 32 (6.64%) Android SDK
10 32 (6.64%) RESTful
11 25 (5.19%) GraphQL
11 25 (5.19%) JSON
12 22 (4.56%) HTML
13 19 (3.94%) CSS
14 18 (3.73%) Dagger
15 17 (3.53%) Web Services
16 15 (3.11%) .NET
16 15 (3.11%) Spring Cloud
17 13 (2.70%) HTML5
Miscellaneous
1 64 (13.28%) Mobile App
2 54 (11.20%) Derivative
3 51 (10.58%) Greenfield Project
4 50 (10.37%) Foreign Exchange (FX)
5 49 (10.17%) Equities
6 46 (9.54%) Fixed Income
7 24 (4.98%) User Experience
8 20 (4.15%) Cloud Native
9 14 (2.90%) Credit Risk
9 14 (2.90%) Hedge funds
10 11 (2.28%) Client/Server
11 10 (2.07%) Data Protection Act
11 10 (2.07%) Enterprise Software
12 9 (1.87%) Algorithms
13 8 (1.66%) Self-Motivation
14 7 (1.45%) iPad
15 5 (1.04%) Legacy Applications
16 4 (0.83%) Data Structures
16 4 (0.83%) Mobile Banking
16 4 (0.83%) Public Cloud
Operating Systems
1 179 (37.14%) Android
2 51 (10.58%) Apple iOS
3 7 (1.45%) Linux
3 7 (1.45%) Unix
4 3 (0.62%) Alpine Linux
4 3 (0.62%) CentOS
5 2 (0.41%) Android TV
5 2 (0.41%) Mac OS
5 2 (0.41%) Windows
Processes & Methodologies
1 222 (46.06%) Agile Software Development
2 150 (31.12%) CI/CD
3 147 (30.50%) Software Engineering
4 140 (29.05%) Android Development
5 138 (28.63%) TDD
6 86 (17.84%) Microservices
7 81 (16.80%) Full Stack Development
8 77 (15.98%) DevOps
9 62 (12.86%) Scrum
10 57 (11.83%) Asset Management
11 52 (10.79%) Test Automation
12 42 (8.71%) BDD
13 38 (7.88%) Analytics
14 37 (7.68%) MVVM
15 35 (7.26%) Fintech
16 33 (6.85%) Unit Testing
17 32 (6.64%) Mobile Development
18 29 (6.02%) Continuous Integration
19 26 (5.39%) Kanban
20 25 (5.19%) Investment Management
Programming Languages
1 364 (75.52%) Java
2 116 (24.07%) JavaScript
3 94 (19.50%) Python
4 71 (14.73%) SQL
4 71 (14.73%) TypeScript
5 63 (13.07%) Scala
6 42 (8.71%) Apple Swift
7 24 (4.98%) C++
8 22 (4.56%) C#
9 20 (4.15%) Java 8
10 16 (3.32%) Go
11 12 (2.49%) Bash
11 12 (2.49%) Objective-C
12 11 (2.28%) Groovy
13 9 (1.87%) C
13 9 (1.87%) Shell Script
14 4 (0.83%) Java 11
15 3 (0.62%) Dart
15 3 (0.62%) ES7
15 3 (0.62%) PHP
Qualifications
1 25 (5.19%) Degree
2 5 (1.04%) Security Cleared
3 4 (0.83%) Computer Science Degree
4 3 (0.62%) SC Cleared
5 1 (0.21%) CEH
5 1 (0.21%) CREST Certified
5 1 (0.21%) DV Cleared
5 1 (0.21%) OSCP
Quality Assurance & Compliance
1 7 (1.45%) Accessibility
2 5 (1.04%) QA
3 2 (0.41%) PMO
4 1 (0.21%) Data Quality
4 1 (0.21%) PCI DSS
4 1 (0.21%) PSD2
System Software
1 90 (18.67%) Docker
2 1 (0.21%) HDFS
Systems Management
1 86 (17.84%) Kubernetes
2 32 (6.64%) Terraform
3 15 (3.11%) Ansible
4 8 (1.66%) Kibana
5 6 (1.24%) Prometheus
5 6 (1.24%) Puppet
6 5 (1.04%) Grafana
6 5 (1.04%) Opscode Chef
7 2 (0.41%) Docker Swarm
7 2 (0.41%) logstash
7 2 (0.41%) Oozie
7 2 (0.41%) Single Sign-On
8 1 (0.21%) Hadoop YARN
Vendors
1 36 (7.47%) Google
2 12 (2.49%) Oracle
3 10 (2.07%) SAP
4 6 (1.24%) Confluent
4 6 (1.24%) Splunk
5 4 (0.83%) AppDynamics
5 4 (0.83%) Elastic Path
6 3 (0.62%) Apple
6 3 (0.62%) Atlassian
6 3 (0.62%) Microsoft
6 3 (0.62%) Xamarin
7 2 (0.41%) Huawei
7 2 (0.41%) Roku
8 1 (0.21%) hybris
8 1 (0.21%) MuleSoft
8 1 (0.21%) Samsung