Kotlin Contracts

JetBrains Kotlin
UK

The table below provides summary statistics for contract job vacancies requiring Kotlin skills. It includes a benchmarking guide to the contractor rates offered in vacancies that cited Kotlin over the 6 months leading up to 30 April 2025, comparing them to the same period in the previous two years.

6 months to
30 Apr 2025
Same period 2024 Same period 2023
Rank 365 395 416
Rank change year-on-year +30 +21 +21
Contract jobs citing Kotlin 156 207 317
As % of all contract jobs advertised in the UK 0.53% 0.47% 0.53%
As % of the Programming Languages category 1.57% 1.61% 1.52%
Number of daily rates quoted 101 151 240
10th Percentile £388 £350 £463
25th Percentile £425 £413 £503
Median daily rate (50th Percentile) £518 £495 £575
Median % change year-on-year +4.55% -13.91% -4.17%
75th Percentile £630 £603 £675
90th Percentile £700 £699 £750
UK excluding London median daily rate £463 £438 £550
% change year-on-year +5.71% -20.45% +4.76%
Number of hourly rates quoted 4 2 4
10th Percentile £37.48 £77.85 -
25th Percentile £41.19 £78.38 £35.00
Median hourly rate £52.75 £80.50 £42.53
Median % change year-on-year -34.47% +89.30% -40.02%
75th Percentile £65.74 £82.13 £57.54
90th Percentile £73.38 £82.35 £71.02
UK excluding London median hourly rate £73.23 £80.50 £65.03
% change year-on-year -9.04% +23.80% +37.27%

All Programming Languages
UK

Kotlin falls under the Programming Languages category. For comparison with the information above, the following table provides summary statistics for all contract job vacancies requiring coding skills.

Contract vacancies with a requirement for coding skills 9,942 12,854 20,901
As % of all contract IT jobs advertised in the UK 34.01% 29.49% 35.02%
Number of daily rates quoted 6,743 9,130 15,092
10th Percentile £360 £350 £400
25th Percentile £419 £425 £463
Median daily rate (50th Percentile) £525 £525 £550
Median % change year-on-year - -4.55% -
75th Percentile £638 £650 £675
90th Percentile £769 £760 £780
UK excluding London median daily rate £475 £489 £500
% change year-on-year -2.86% -2.20% +3.09%
Number of hourly rates quoted 245 485 471
10th Percentile £22.49 £31.25 £26.25
25th Percentile £33.91 £46.25 £50.00
Median hourly rate £62.50 £60.50 £60.70
Median % change year-on-year +3.31% -0.33% +21.40%
75th Percentile £68.00 £70.00 £70.00
90th Percentile £85.00 £78.75 £77.00
UK excluding London median hourly rate £63.87 £62.50 £62.50
% change year-on-year +2.20% - +26.21%

Kotlin
Job Vacancy Trend

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

Job vacancy trend for Kotlin in the UK

Kotlin
Contractor Daily Rate Trend

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

Daily rate trend for Kotlin in the UK

Kotlin
Daily Rate Histogram

Daily rate distribution for jobs citing Kotlin over the 6 months to 30 April 2025.

Daily rate histogram for Kotlin in the UK

Kotlin
Contractor Hourly Rate Trend

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

Hourly rate trend for Kotlin in the UK

Kotlin
Hourly Rate Histogram

Hourly rate distribution of jobs citing Kotlin over the 6 months to 30 April 2025.

Hourly rate histogram for Kotlin in the UK

Kotlin
Top 13 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 30 April 2025. 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
England +13 126 £509 +2.78% 193
London +9 84 £525 - 121
Work from Home +41 57 £520 -0.95% 138
UK excluding London +21 38 £463 +5.71% 81
North of England +3 16 £464 +6.11% 44
Yorkshire +9 8 £491 +63.80% 10
North West -8 8 £425 -12.37% 29
Midlands +28 7 £463 +2.78% 6
East Midlands - 7 £463 - 5
South West +48 6 £438 -27.08% 3
Northern Ireland - 5 £504 - 2
South East +35 2 £585 +37.65% 12
East of England - 2 £525 - 4

Kotlin
Co-occurring Skills and Capabilities by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 13 (8.33%) Confluence
Business Applications
1 1 (0.64%) Shopify
Cloud Services
1 38 (24.36%) AWS
2 24 (15.38%) GitHub
3 19 (12.18%) Azure
4 10 (6.41%) GCP
5 8 (5.13%) Amazon EKS
6 7 (4.49%) Azure DevOps
6 7 (4.49%) GitHub Actions
7 6 (3.85%) Amazon ECS
8 5 (3.21%) CloudBees
8 5 (3.21%) Firebase
9 4 (2.56%) Azure Monitor
9 4 (2.56%) Figma
9 4 (2.56%) SonarCloud
10 3 (1.92%) AWS CloudFormation
11 2 (1.28%) Apple Pay
11 2 (1.28%) Google Play
11 2 (1.28%) IaaS
11 2 (1.28%) PaaS
11 2 (1.28%) Sentry
11 2 (1.28%) Serverless
Communications & Networking
1 1 (0.64%) RTSP
Database & Business Intelligence
1 5 (3.21%) PostgreSQL
2 3 (1.92%) Relational Database
3 2 (1.28%) BigQuery
3 2 (1.28%) MongoDB
3 2 (1.28%) MySQL
4 1 (0.64%) Apache Cassandra
4 1 (0.64%) Big Data
4 1 (0.64%) Data Lake
4 1 (0.64%) Geospatial Data
4 1 (0.64%) NoSQL
4 1 (0.64%) Redis
Development Applications
1 27 (17.31%) Git
2 14 (8.97%) JIRA
3 11 (7.05%) Jenkins
4 9 (5.77%) Android Studio
5 6 (3.85%) CircleCI
5 6 (3.85%) JUnit
5 6 (3.85%) Mockito
6 5 (3.21%) Gradle
7 3 (1.92%) Cypress.io
7 3 (1.92%) GitLab
8 2 (1.28%) Bitbucket
8 2 (1.28%) Selenium
9 1 (0.64%) Appium
9 1 (0.64%) Cucumber
9 1 (0.64%) Eclipse
9 1 (0.64%) Maven
9 1 (0.64%) Mercurial
9 1 (0.64%) Spock
9 1 (0.64%) TestNG
General
1 34 (21.79%) Social Skills
2 27 (17.31%) Finance
3 19 (12.18%) Banking
4 13 (8.33%) Public Sector
5 10 (6.41%) Analytical Skills
6 7 (4.49%) Military
7 2 (1.28%) Games
7 2 (1.28%) Inclusion and Diversity
7 2 (1.28%) Investment Banking
7 2 (1.28%) Retail
7 2 (1.28%) Wholesale Banking
8 1 (0.64%) Financial Institution
8 1 (0.64%) Front Office
Job Titles
1 100 (64.10%) Developer
2 59 (37.82%) Android Developer
3 40 (25.64%) Senior
4 24 (15.38%) Senior Developer
5 17 (10.90%) Senior Android Developer
6 14 (8.97%) Full-Stack Developer
6 14 (8.97%) Java Developer
7 12 (7.69%) Android Engineer
8 10 (6.41%) Architect
9 8 (5.13%) Full-Stack Engineer
9 8 (5.13%) Java Engineer
10 7 (4.49%) Senior Android Engineer
11 6 (3.85%) iOS Developer
11 6 (3.85%) Software Engineer
12 5 (3.21%) Applications Developer
12 5 (3.21%) Lead Developer
12 5 (3.21%) Mobile Architect
12 5 (3.21%) Software Developer
12 5 (3.21%) Web Applications Developer
12 5 (3.21%) Web Developer
Libraries, Frameworks & Software Standards
1 34 (21.79%) Android Jetpack
2 29 (18.59%) Android SDK
3 22 (14.10%) RESTful
4 20 (12.82%) Jetpack Compose
5 13 (8.33%) React Native
5 13 (8.33%) Spring
6 12 (7.69%) Dagger
6 12 (7.69%) HTML
6 12 (7.69%) Spring Boot
7 9 (5.77%) AngularJS
7 9 (5.77%) CSS
7 9 (5.77%) GraphQL
7 9 (5.77%) React
8 8 (5.13%) Node.js
9 7 (4.49%) JSON
9 7 (4.49%) Kafka
10 5 (3.21%) Material Design
10 5 (3.21%) REST
10 5 (3.21%) RxJava
11 4 (2.56%) Swagger
Miscellaneous
1 41 (26.28%) Mobile App
2 6 (3.85%) Algorithms
2 6 (3.85%) Data Structures
3 3 (1.92%) Cloud Native
3 3 (1.92%) Educational Technology
3 3 (1.92%) Management Information System
3 3 (1.92%) Product Ownership
3 3 (1.92%) Public Cloud
4 2 (1.28%) Data Protection Act
4 2 (1.28%) Derivative
4 2 (1.28%) Digital Wallet
4 2 (1.28%) Distributed Systems
4 2 (1.28%) Equities
4 2 (1.28%) Equity Derivative
4 2 (1.28%) Legacy Applications
4 2 (1.28%) Mobile Banking
4 2 (1.28%) Onboarding
4 2 (1.28%) Video\Live Streaming
4 2 (1.28%) Virtual Reality
5 1 (0.64%) Social Media
Operating Systems
1 80 (51.28%) Android
2 15 (9.62%) Apple iOS
3 3 (1.92%) Linux
4 2 (1.28%) Windows
Processes & Methodologies
1 68 (43.59%) Android Development
2 54 (34.62%) Agile
2 54 (34.62%) CI/CD
3 32 (20.51%) MVVM
4 25 (16.03%) DevOps
5 24 (15.38%) Design Patterns
5 24 (15.38%) Full-Stack Development
5 24 (15.38%) User Experience
6 21 (13.46%) TDD
7 20 (12.82%) Problem-Solving
8 19 (12.18%) Mentoring
8 19 (12.18%) Test Automation
9 17 (10.90%) Mobile Development
10 16 (10.26%) Continuous Integration
10 16 (10.26%) Mobile Application Development
10 16 (10.26%) Scrum
11 15 (9.62%) Architectural Patterns
12 14 (8.97%) Code Quality
12 14 (8.97%) Performance Optimisation
12 14 (8.97%) Software Engineering
Programming Languages
1 83 (53.21%) Java
2 23 (14.74%) TypeScript
3 17 (10.90%) JavaScript
4 15 (9.62%) Python
5 13 (8.33%) Swift
6 8 (5.13%) Go
7 5 (3.21%) Scala
7 5 (3.21%) Shell Script
8 4 (2.56%) Objective-C
8 4 (2.56%) SQL
9 3 (1.92%) Groovy
10 2 (1.28%) C++
10 2 (1.28%) Rust
11 1 (0.64%) Bash
11 1 (0.64%) C#
11 1 (0.64%) PowerShell
Qualifications
1 16 (10.26%) Security Cleared
2 15 (9.62%) SC Cleared
3 2 (1.28%) Computer Science Degree
3 2 (1.28%) Degree
Quality Assurance & Compliance
1 14 (8.97%) Accessibility
2 6 (3.85%) QA
3 3 (1.92%) PMO
4 1 (0.64%) Software Quality Assurance
System Software
1 21 (13.46%) Docker
Systems Management
1 19 (12.18%) Kubernetes
2 12 (7.69%) Terraform
3 5 (3.21%) Grafana
3 5 (3.21%) Prometheus
4 1 (0.64%) Ansible
Vendors
1 13 (8.33%) Google
2 5 (3.21%) Microsoft
3 2 (1.28%) Alibaba
3 2 (1.28%) Apple
3 2 (1.28%) Salesforce
3 2 (1.28%) Samsung
3 2 (1.28%) SAP
3 2 (1.28%) Spotify
3 2 (1.28%) Virgin Media
4 1 (0.64%) Adobe
4 1 (0.64%) Databricks
4 1 (0.64%) Oracle
4 1 (0.64%) Sitecore