Kotlin Contracts in the City of London

JetBrains Kotlin
Central London > City of London

The table below provides summary statistics for contract job vacancies advertised in the City of London 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 1 May 2025, comparing them to the same period in the previous two years.

6 months to
1 May 2025
Same period 2024 Same period 2023
Rank 110 117 146
Rank change year-on-year +7 +29 -20
Contract jobs citing Kotlin 9 10 32
As % of all contract jobs advertised in the City of London 0.51% 0.46% 0.88%
As % of the Programming Languages category 1.27% 1.34% 2.02%
Number of daily rates quoted 3 5 27
10th Percentile £453 - £500
25th Percentile £513 £375 £575
Median daily rate (50th Percentile) £625 £525 £600
Median % change year-on-year +19.05% -12.50% -5.88%
75th Percentile £719 £688 £631
90th Percentile £768 £710 £745
Central London median daily rate £625 £588 £603
% change year-on-year +6.38% -2.49% -5.49%
Number of hourly rates quoted 0 0 2
Median hourly rate - - £35.00
Central London median hourly rate - - £35.00

All Programming Languages
City of London

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 in the City of London.

Contract vacancies with a requirement for coding skills 706 744 1,585
As % of all contract IT jobs advertised in the City of London 40.21% 33.86% 43.51%
Number of daily rates quoted 466 530 1,040
10th Percentile £413 £406 £425
25th Percentile £463 £463 £513
Median daily rate (50th Percentile) £577 £575 £625
Median % change year-on-year +0.26% -8.00% +4.17%
75th Percentile £694 £688 £738
90th Percentile £788 £788 £825
Central London median daily rate £575 £565 £620
% change year-on-year +1.77% -8.87% +3.33%
Number of hourly rates quoted 0 1 8
10th Percentile - - £35.00
25th Percentile - £46.75 £47.19
Median hourly rate - £48.50 £57.50
Median % change year-on-year - -15.65% -4.96%
75th Percentile - £50.25 £65.00
90th Percentile - - £84.13
Central London median hourly rate £29.07 £48.50 £57.50
% change year-on-year -40.06% -15.65% -4.96%

Kotlin
Job Vacancy Trend in the City of London

Job postings citing Kotlin as a proportion of all IT jobs advertised in the City of London.

Job vacancy trend for Kotlin in the City of London

Kotlin
Contractor Daily Rate Trend in the City of London

3-month moving average daily rate quoted in jobs citing Kotlin in the City of London.

Daily rate trend for Kotlin in the City of London

Kotlin
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing Kotlin in the City of London over the 6 months to 1 May 2025.

Daily rate histogram for Kotlin in the City of London

Kotlin
Contractor Hourly Rate Trend in the City of London

3-month moving average hourly rates quoted in jobs citing Kotlin in the City of London.

Hourly rate trend for Kotlin in the City of London

Kotlin
Co-occurring Skills and Capabilities in the City of London 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 1 (11.11%) Confluence
Cloud Services
1 4 (44.44%) AWS
2 2 (22.22%) Apple Pay
Database & Business Intelligence
1 1 (11.11%) Big Data
1 1 (11.11%) MongoDB
1 1 (11.11%) Relational Database
Development Applications
1 1 (11.11%) Android Studio
1 1 (11.11%) JIRA
General
1 5 (55.56%) Social Skills
2 1 (11.11%) Analytical Skills
2 1 (11.11%) Banking
2 1 (11.11%) Finance
2 1 (11.11%) Front Office
Job Titles
1 8 (88.89%) Developer
2 6 (66.67%) Android Developer
3 3 (33.33%) iOS Developer
4 2 (22.22%) iOS Android Developer
4 2 (22.22%) Senior
4 2 (22.22%) Senior Android Developer
4 2 (22.22%) Senior Developer
5 1 (11.11%) Architect
5 1 (11.11%) Front Office Developer
5 1 (11.11%) Java Developer
5 1 (11.11%) Mobile Architect
Libraries, Frameworks & Software Standards
1 4 (44.44%) GraphQL
1 4 (44.44%) Jetpack Compose
2 3 (33.33%) Android Jetpack
3 2 (22.22%) Android SDK
4 1 (11.11%) React Native
4 1 (11.11%) RESTful
4 1 (11.11%) SwiftUI
4 1 (11.11%) UIKit
Miscellaneous
1 6 (66.67%) Mobile App
2 1 (11.11%) Cloud Native
2 1 (11.11%) Legacy Systems
2 1 (11.11%) Mobile Banking
Operating Systems
1 7 (77.78%) Android
2 4 (44.44%) Apple iOS
Processes & Methodologies
1 7 (77.78%) Android Development
2 6 (66.67%) Mobile Development
3 5 (55.56%) Agile
3 5 (55.56%) Mobile Application Development
3 5 (55.56%) Performance Optimisation
3 5 (55.56%) Push Notifications
3 5 (55.56%) Scrum
4 4 (44.44%) B2C
4 4 (44.44%) CI/CD
4 4 (44.44%) iOS Development
4 4 (44.44%) Kanban
5 1 (11.11%) Analytics
5 1 (11.11%) Architectural Patterns
5 1 (11.11%) Code Quality
5 1 (11.11%) Containerisation
5 1 (11.11%) Performance Tuning
5 1 (11.11%) Problem-Solving
5 1 (11.11%) Unit Testing
Programming Languages
1 4 (44.44%) Swift
2 3 (33.33%) Java
Quality Assurance & Compliance
1 1 (11.11%) Accessibility
System Software
1 1 (11.11%) Docker
Systems Management
1 1 (11.11%) Kubernetes
Vendors
1 2 (22.22%) Apple
2 1 (11.11%) Databricks