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 5 May 2025, comparing them to the same period in the previous two years.

6 months to
5 May 2025
Same period 2024 Same period 2023
Rank 379 391 427
Rank change year-on-year +12 +36 +15
Contract jobs citing Kotlin 153 210 307
As % of all contract jobs advertised in the UK 0.53% 0.49% 0.52%
As % of the Programming Languages category 1.54% 1.64% 1.49%
Number of daily rates quoted 96 151 234
10th Percentile £381 £350 £463
25th Percentile £425 £413 £503
Median daily rate (50th Percentile) £500 £495 £588
Median % change year-on-year +1.01% -15.74% +0.64%
75th Percentile £630 £600 £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 3 4
10th Percentile £37.48 £48.10 -
25th Percentile £41.19 £59.13 £35.00
Median hourly rate £52.75 £80.00 £42.53
Median % change year-on-year -34.06% +88.12% -40.48%
75th Percentile £65.74 £81.75 £57.54
90th Percentile £73.38 £82.20 £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 9,926 12,769 20,585
As % of all contract IT jobs advertised in the UK 34.14% 29.59% 34.85%
Number of daily rates quoted 6,749 9,080 14,839
10th Percentile £358 £350 £394
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 £775 £763 £775
UK excluding London median daily rate £475 £488 £500
% change year-on-year -2.56% -2.50% +2.04%
Number of hourly rates quoted 250 487 463
10th Percentile £22.50 £31.70 £26.15
25th Percentile £33.91 £46.25 £49.84
Median hourly rate £62.50 £61.60 £60.00
Median % change year-on-year +1.46% +2.67% +20.00%
75th Percentile £68.00 £70.00 £70.00
90th Percentile £85.00 £79.50 £77.80
UK excluding London median hourly rate £64.00 £62.50 £60.63
% change year-on-year +2.40% +3.09% +21.86%

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 5 May 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 5 May 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 5 May 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 +6 123 £500 +1.01% 297
London +17 83 £563 +7.14% 178
Work from Home +40 58 £520 -0.95% 228
UK excluding London +15 35 £463 +5.71% 175
North of England -3 15 £463 +5.71% 70
Yorkshire +10 8 £491 +63.80% 15
North West -6 7 £400 -17.53% 49
South West +38 6 £438 -27.08% 11
Midlands +22 6 £463 +2.78% 8
East Midlands - 6 £463 - 4
Northern Ireland - 5 £504 - 4
South East +35 2 £585 +37.65% 61
East of England - 1 £525 - 16

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 11 (7.19%) Confluence
Business Applications
1 1 (0.65%) Shopify
Cloud Services
1 35 (22.88%) AWS
2 21 (13.73%) GitHub
3 18 (11.76%) Azure
4 10 (6.54%) GCP
5 7 (4.58%) GitHub Actions
6 6 (3.92%) Amazon EKS
6 6 (3.92%) Azure DevOps
7 5 (3.27%) CloudBees
7 5 (3.27%) Firebase
8 4 (2.61%) Amazon ECS
8 4 (2.61%) Azure Monitor
8 4 (2.61%) Figma
8 4 (2.61%) SonarCloud
9 3 (1.96%) AWS CloudFormation
10 2 (1.31%) Apple Pay
10 2 (1.31%) Azure AKS
10 2 (1.31%) Google Kubernetes Engine
10 2 (1.31%) Google Play
10 2 (1.31%) IaaS
10 2 (1.31%) PaaS
Communications & Networking
1 1 (0.65%) RTSP
Database & Business Intelligence
1 4 (2.61%) PostgreSQL
2 3 (1.96%) Relational Database
3 2 (1.31%) BigQuery
3 2 (1.31%) MongoDB
3 2 (1.31%) MySQL
4 1 (0.65%) Apache Cassandra
4 1 (0.65%) Big Data
4 1 (0.65%) Data Lake
4 1 (0.65%) Geospatial Data
4 1 (0.65%) NoSQL
4 1 (0.65%) Redis
Development Applications
1 26 (16.99%) Git
2 12 (7.84%) JIRA
3 10 (6.54%) Jenkins
4 9 (5.88%) Android Studio
5 6 (3.92%) CircleCI
5 6 (3.92%) JUnit
5 6 (3.92%) Mockito
6 5 (3.27%) Gradle
7 3 (1.96%) GitLab
8 2 (1.31%) Bitbucket
8 2 (1.31%) Cypress.io
9 1 (0.65%) Appium
9 1 (0.65%) Cucumber
9 1 (0.65%) Eclipse
9 1 (0.65%) Maven
9 1 (0.65%) Mercurial
9 1 (0.65%) Selenium
9 1 (0.65%) Spock
9 1 (0.65%) TestNG
General
1 33 (21.57%) Social Skills
2 27 (17.65%) Finance
3 19 (12.42%) Banking
4 13 (8.50%) Public Sector
5 9 (5.88%) Analytical Skills
6 7 (4.58%) Military
7 2 (1.31%) Games
7 2 (1.31%) Inclusion and Diversity
7 2 (1.31%) Investment Banking
7 2 (1.31%) Retail
7 2 (1.31%) Wholesale Banking
8 1 (0.65%) Financial Institution
8 1 (0.65%) Front Office
Job Titles
1 98 (64.05%) Developer
2 59 (38.56%) Android Developer
3 40 (26.14%) Senior
4 23 (15.03%) Senior Developer
5 16 (10.46%) Senior Android Developer
6 14 (9.15%) Full-Stack Developer
6 14 (9.15%) Java Developer
7 13 (8.50%) Android Engineer
8 10 (6.54%) Architect
9 9 (5.88%) Senior Android Engineer
10 8 (5.23%) Full-Stack Engineer
11 7 (4.58%) Java Engineer
12 5 (3.27%) iOS Developer
12 5 (3.27%) Lead
12 5 (3.27%) Lead Developer
12 5 (3.27%) Mobile Architect
12 5 (3.27%) React Developer
13 4 (2.61%) Applications Developer
13 4 (2.61%) Software Engineer
13 4 (2.61%) Web Developer
Libraries, Frameworks & Software Standards
1 33 (21.57%) Android Jetpack
2 30 (19.61%) Android SDK
3 22 (14.38%) RESTful
4 19 (12.42%) Jetpack Compose
5 13 (8.50%) Dagger
6 11 (7.19%) HTML
6 11 (7.19%) Spring
7 10 (6.54%) React Native
7 10 (6.54%) Spring Boot
8 9 (5.88%) AngularJS
8 9 (5.88%) GraphQL
9 8 (5.23%) CSS
9 8 (5.23%) React
10 7 (4.58%) JSON
10 7 (4.58%) Kafka
10 7 (4.58%) Node.js
11 5 (3.27%) Material Design
11 5 (3.27%) RxJava
12 4 (2.61%) OpenAPI
12 4 (2.61%) Swagger
Miscellaneous
1 43 (28.10%) Mobile App
2 6 (3.92%) Algorithms
3 5 (3.27%) Data Structures
4 3 (1.96%) Cloud Native
4 3 (1.96%) Educational Technology
4 3 (1.96%) Legacy Applications
4 3 (1.96%) Management Information System
4 3 (1.96%) Public Cloud
5 2 (1.31%) Derivative
5 2 (1.31%) Digital Wallet
5 2 (1.31%) Distributed Systems
5 2 (1.31%) Equities
5 2 (1.31%) Equity Derivative
5 2 (1.31%) Mobile Banking
5 2 (1.31%) Onboarding
5 2 (1.31%) Video\Live Streaming
6 1 (0.65%) Cyber Threat
6 1 (0.65%) Greenfield Project
6 1 (0.65%) Legacy Systems
6 1 (0.65%) Linux Command Line
Operating Systems
1 78 (50.98%) Android
2 13 (8.50%) Apple iOS
3 3 (1.96%) Linux
4 2 (1.31%) Windows
Processes & Methodologies
1 67 (43.79%) Android Development
2 54 (35.29%) CI/CD
3 52 (33.99%) Agile
4 35 (22.88%) MVVM
5 26 (16.99%) Design Patterns
6 24 (15.69%) Full-Stack Development
6 24 (15.69%) User Experience
7 22 (14.38%) DevOps
8 20 (13.07%) TDD
9 19 (12.42%) Problem-Solving
10 18 (11.76%) Mobile Development
10 18 (11.76%) Test Automation
11 17 (11.11%) Architectural Patterns
11 17 (11.11%) Mentoring
12 16 (10.46%) Mobile Application Development
12 16 (10.46%) Performance Optimisation
13 15 (9.80%) Scrum
14 14 (9.15%) Continuous Integration
15 13 (8.50%) Code Quality
15 13 (8.50%) Microservices
Programming Languages
1 79 (51.63%) Java
2 22 (14.38%) TypeScript
3 17 (11.11%) JavaScript
4 14 (9.15%) Python
5 12 (7.84%) Swift
6 9 (5.88%) Go
7 5 (3.27%) Scala
7 5 (3.27%) Shell Script
8 4 (2.61%) SQL
9 3 (1.96%) Groovy
9 3 (1.96%) Objective-C
10 2 (1.31%) C++
10 2 (1.31%) Rust
11 1 (0.65%) Bash
11 1 (0.65%) C#
11 1 (0.65%) PowerShell
Qualifications
1 15 (9.80%) Security Cleared
2 14 (9.15%) SC Cleared
3 2 (1.31%) Computer Science Degree
3 2 (1.31%) Degree
Quality Assurance & Compliance
1 17 (11.11%) Accessibility
2 6 (3.92%) QA
3 3 (1.96%) PMO
4 1 (0.65%) Software Quality Assurance
System Software
1 19 (12.42%) Docker
Systems Management
1 19 (12.42%) Kubernetes
2 11 (7.19%) Terraform
3 5 (3.27%) Grafana
3 5 (3.27%) Prometheus
4 1 (0.65%) Ansible
Vendors
1 13 (8.50%) Google
2 4 (2.61%) Microsoft
3 2 (1.31%) Alibaba
3 2 (1.31%) Apple
3 2 (1.31%) Samsung
3 2 (1.31%) Spotify
3 2 (1.31%) Virgin Media
4 1 (0.65%) Adobe
4 1 (0.65%) Databricks
4 1 (0.65%) Salesforce
4 1 (0.65%) SAP
4 1 (0.65%) Sitecore