Kotlin Contracts in London

JetBrains Kotlin
England > London

The table below provides summary statistics for contract job vacancies advertised in 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 29 May 2025, comparing them to the same period in the previous two years.

6 months to
29 May 2025
Same period 2024 Same period 2023
Rank 253 259 271
Rank change year-on-year +6 +12 +51
Contract jobs citing Kotlin 88 139 218
As % of all contract jobs advertised in London 0.73% 0.80% 0.85%
As % of the Programming Languages category 1.84% 2.14% 2.13%
Number of daily rates quoted 47 91 177
10th Percentile £375 £363 £463
25th Percentile £463 £431 £518
Median daily rate (50th Percentile) £600 £525 £600
Median % change year-on-year +14.29% -12.50% -0.83%
75th Percentile £703 £600 £688
90th Percentile £735 £699 £775
England median daily rate £500 £495 £600
% change year-on-year +1.01% -17.50% +2.13%
Number of hourly rates quoted 1 1 1
10th Percentile - - -
25th Percentile £43.25 £40.75 -
Median hourly rate £44.50 £41.50 £35.00
Median % change year-on-year +7.23% +18.57% -52.44%
75th Percentile £45.75 £42.25 -
90th Percentile - - -
England median hourly rate £44.50 £80.00 £57.50
% change year-on-year -44.38% +39.13% -21.87%

All Programming Languages
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 London.

Contract vacancies with a requirement for coding skills 4,770 6,509 10,237
As % of all contract IT jobs advertised in London 39.35% 37.26% 40.15%
Number of daily rates quoted 3,344 4,980 7,695
10th Percentile £380 £375 £413
25th Percentile £438 £463 £500
Median daily rate (50th Percentile) £550 £575 £600
Median % change year-on-year -4.35% -4.17% -
75th Percentile £713 £700 £738
90th Percentile £825 £838 £825
England median daily rate £525 £545 £564
% change year-on-year -3.67% -3.37% +2.55%
Number of hourly rates quoted 35 51 77
10th Percentile £28.04 £23.80 £25.75
25th Percentile £32.25 £36.91 £48.60
Median hourly rate £37.50 £50.50 £60.00
Median % change year-on-year -25.74% -15.83% +21.75%
75th Percentile £53.75 £63.52 £75.00
90th Percentile £62.75 £72.50 £90.00
England median hourly rate £62.00 £62.50 £62.50
% change year-on-year -0.80% - +19.05%

Kotlin
Job Vacancy Trend in London

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

Job vacancy trend for Kotlin in London

Kotlin
Contractor Daily Rate Trend in London

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

Daily rate trend for Kotlin in London

Kotlin
Daily Rate Histogram in London

Daily rate distribution for jobs citing Kotlin in London over the 6 months to 29 May 2025.

Daily rate histogram for Kotlin in London

Kotlin
Contractor Hourly Rate Trend in London

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

Hourly rate trend for Kotlin in London

Kotlin
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Kotlin within the London region over the 6 months to 29 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
Central London 0 9 £625 +8.70% 24
West London +6 1 £400 +21.21% 25
Kotlin
England

Kotlin
Co-occurring Skills and Capabilities in 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 12 (13.64%) Confluence
Business Applications
1 1 (1.14%) Shopify
Cloud Services
1 30 (34.09%) AWS
2 25 (28.41%) GitHub
3 12 (13.64%) GitHub Actions
4 9 (10.23%) Azure
5 4 (4.55%) Amazon ECS
5 4 (4.55%) Amazon EKS
5 4 (4.55%) Azure Monitor
6 3 (3.41%) AWS CloudFormation
6 3 (3.41%) Firebase
6 3 (3.41%) GCP
7 2 (2.27%) Apple Pay
8 1 (1.14%) Azure DevOps
8 1 (1.14%) BigCommerce
8 1 (1.14%) IaaS
8 1 (1.14%) PaaS
8 1 (1.14%) Sentry
8 1 (1.14%) Serverless
Communications & Networking
1 1 (1.14%) RTSP
Database & Business Intelligence
1 1 (1.14%) Big Data
1 1 (1.14%) MongoDB
1 1 (1.14%) PostgreSQL
1 1 (1.14%) Relational Database
Development Applications
1 12 (13.64%) CircleCI
1 12 (13.64%) JIRA
2 9 (10.23%) Gradle
3 8 (9.09%) Jenkins
4 7 (7.95%) Git
5 5 (5.68%) Android Studio
5 5 (5.68%) JUnit
6 3 (3.41%) Mockito
7 2 (2.27%) Bitbucket
7 2 (2.27%) GitLab
7 2 (2.27%) Maven
7 2 (2.27%) Postman
8 1 (1.14%) Cypress.io
8 1 (1.14%) Eclipse
8 1 (1.14%) Gatling
8 1 (1.14%) Mercurial
8 1 (1.14%) REST Assured
8 1 (1.14%) SonarQube
8 1 (1.14%) Spock
General
1 25 (28.41%) Social Skills
2 16 (18.18%) Finance
3 13 (14.77%) Banking
4 7 (7.95%) Analytical Skills
4 7 (7.95%) Public Sector
5 5 (5.68%) Military
6 2 (2.27%) Retail
7 1 (1.14%) Front Office
7 1 (1.14%) Inclusion and Diversity
Job Titles
1 47 (53.41%) Developer
2 32 (36.36%) Android Developer
3 27 (30.68%) Senior
4 13 (14.77%) Architect
5 12 (13.64%) Senior Developer
6 10 (11.36%) Technical Architect
7 9 (10.23%) Java Engineer
8 8 (9.09%) Senior Android Developer
8 8 (9.09%) Senior Architect
8 8 (9.09%) Senior Technical Architect
9 7 (7.95%) Android Engineer
10 6 (6.82%) Java Developer
11 5 (5.68%) Full-Stack Developer
12 4 (4.55%) Applications Developer
12 4 (4.55%) Web Applications Developer
12 4 (4.55%) Web Developer
13 3 (3.41%) iOS Developer
13 3 (3.41%) Lead Android Developer
13 3 (3.41%) Lead Developer
13 3 (3.41%) Principal Engineer
Libraries, Frameworks & Software Standards
1 12 (13.64%) Android SDK
2 11 (12.50%) Android Jetpack
3 10 (11.36%) Jetpack Compose
4 9 (10.23%) Dagger
5 8 (9.09%) Spring
5 8 (9.09%) Spring Boot
6 7 (7.95%) RxJava
7 6 (6.82%) Node.js
8 5 (5.68%) HTML
8 5 (5.68%) RESTful
9 4 (4.55%) GraphQL
9 4 (4.55%) Kafka
10 3 (3.41%) CSS
10 3 (3.41%) Material Design
10 3 (3.41%) React
10 3 (3.41%) Retrofit
11 2 (2.27%) AngularJS
11 2 (2.27%) JPA
11 2 (2.27%) SwiftUI
11 2 (2.27%) UIKit
Miscellaneous
1 22 (25.00%) Mobile App
2 8 (9.09%) Public Cloud
3 5 (5.68%) Algorithms
3 5 (5.68%) Data Structures
4 4 (4.55%) Legacy Applications
5 3 (3.41%) Educational Technology
6 2 (2.27%) Digital Wallet
6 2 (2.27%) Distributed Systems
6 2 (2.27%) Management Information System
7 1 (1.14%) Cloud Native
7 1 (1.14%) Cyber Threat
7 1 (1.14%) Greenfield Project
7 1 (1.14%) Legacy Systems
7 1 (1.14%) Linux Command Line
7 1 (1.14%) Mobile Banking
7 1 (1.14%) Product Ownership
Operating Systems
1 43 (48.86%) Android
2 8 (9.09%) Apple iOS
3 3 (3.41%) Linux
4 2 (2.27%) Windows
Processes & Methodologies
1 34 (38.64%) Android Development
2 31 (35.23%) CI/CD
3 29 (32.95%) Agile
4 25 (28.41%) MVVM
5 19 (21.59%) Design Patterns
6 17 (19.32%) Mobile Development
7 16 (18.18%) Microservices
8 13 (14.77%) API Development
8 13 (14.77%) Architectural Patterns
8 13 (14.77%) Mobile Application Development
8 13 (14.77%) User Experience
9 12 (13.64%) Event-Driven
9 12 (13.64%) Infrastructure as Code
10 11 (12.50%) Performance Optimisation
11 10 (11.36%) Continuous Delivery
11 10 (11.36%) DevOps
11 10 (11.36%) Domain-Driven Design
11 10 (11.36%) Problem-Solving
11 10 (11.36%) TDD
12 9 (10.23%) Software Architecture
Programming Languages
1 54 (61.36%) Java
2 19 (21.59%) TypeScript
3 9 (10.23%) Python
4 7 (7.95%) Swift
5 5 (5.68%) JavaScript
6 4 (4.55%) SQL
7 2 (2.27%) C++
7 2 (2.27%) Go
7 2 (2.27%) Rust
8 1 (1.14%) Ada
8 1 (1.14%) Bash
8 1 (1.14%) Groovy
8 1 (1.14%) Objective-C
8 1 (1.14%) PowerShell
8 1 (1.14%) Scala
Qualifications
1 10 (11.36%) SC Cleared
1 10 (11.36%) Security Cleared
2 2 (2.27%) Computer Science Degree
2 2 (2.27%) Degree
Quality Assurance & Compliance
1 14 (15.91%) Accessibility
2 3 (3.41%) Data Quality
3 2 (2.27%) QA
4 1 (1.14%) WCAG
System Software
1 12 (13.64%) Docker
Systems Management
1 16 (18.18%) Kubernetes
1 16 (18.18%) Terraform
2 10 (11.36%) Grafana
2 10 (11.36%) Prometheus
3 1 (1.14%) Ansible
Vendors
1 2 (2.27%) Alibaba
1 2 (2.27%) Apple
1 2 (2.27%) Microsoft
1 2 (2.27%) Virgin Media
2 1 (1.14%) Adobe
2 1 (1.14%) Checkmarx
2 1 (1.14%) Databricks
2 1 (1.14%) Google
2 1 (1.14%) Salesforce
2 1 (1.14%) SAP
2 1 (1.14%) Sitecore