Kotlin Multiplatform Engineer (KMP / Android / iOS) - Gambling - Fully Remote - OUTSIDE - 6 months

Digital Transformation and Software Development consultancy requires a Kotlin Multiplatform Engineer (KMP) for a fully remote OUTSIDE IR35 6 month contract starting on Monday 5th Jan 2026 to work with their world-renowned Sports Betting & Gambling client.

You will have availability to have a one stage remote interview on Monday 15th Dec or Tuesday 16th Dec and start on Monday 5th Jan 2026.

Contract Details:

• Start Date: 5th January 2026.
• End Date: 30th June 2026.
• Day Rate: £440 per day.
• Determination: OUTSIDE IR35.
• Base: Fully Remote.

Project Scope:

You will be working on a large-scale Kotlin Multiplatform (KMP) trading/betting application built with Compose Multiplatform (CMP), supporting iOS, Android, Desktop, and Web platforms.

The project features a sophisticated architecture with clean separation of concerns across domain, data, UI, and feature layers, utilising Koin for dependency injection, Ktor for networking, and WebSocket connections for real-time market data.

The codebase emphasizes responsible gaming features, comprehensive KYC/identity verification, multi-factor authentication, payment integrations (Braintree, PaySafe, Trustly), and advanced catalog/portfolio management for sports betting and trading markets.

Technical Skills required:

• Must-have skills: Kotlin, KMP, Compose Multiplatform, Koin, Ktor, WebSocket
• Platform targets: Android, iOS, Desktop, Web
• Desirable: Security, payments, fintech/trading experience, CI/CD