phoenix
phoenixPhoenix - Your AI Assistant
Inactive session will be ended in 24 hours
End Session

Full-Stack Developer (Kotlin Multiplatform + SvelteKit)

  • Posted:
  • Proposals: 31
  • Remote
  • #4502764
  • Open for Proposals
Yasir Ali M.Samiullah S.Samuel O.Majid Ali K.Bombay Softwares + 26 others have already sent a proposal.
  • 1

Description

Experience Level: Entry
We are Stuck In The Riddle Ltd, an escape room operator. We have recently finished building Riddle Ramble, an interactive, city-based escape room game app where players visit real-world waypoints to solve puzzles.

The application is completely built and fully deployed, but our original development agency is winding down their operations. We are looking for a reliable, long-term freelance developer (or a tight-knit duo) to inherit the codebase, conduct a thorough initial code review, and handle ongoing maintenance, bug fixes, and future feature development.

The Tech StackMobile Application:
Kotlin Multiplatform (KMP) deploying to iOS and Android.
Web Application (Creator Admin Dashboard): SvelteKit / JavaScript.
Backend & Database: Firebase (Blaze Pay-As-You-Go Plan, utilizing Firestore, Authentication, and Cloud Functions).
Hosting: Firebase Hosting (for the web app) and custom domain routing via GoDaddy.
Infrastructure: Fully controlled under our own Google Cloud Organization workspace.

Key Responsibilities
Initial Code Review & Audit: Inherit the existing codebase from our GitHub repositories, set up a local development environment, and audit the code for stability and cleanliness.
Onboarding & Configuration: Wire a local development/staging Firebase environment so updates can be safely tested before hitting the live production app.
General Maintenance & Optimization: Act as our on-call developer to handle unexpected server issues, minor bugs, and OS-level update requirements (iOS/Android compliance).
Future Feature Evolution: Collaborate with the business owner to plan and build new puzzle mechanics or game features over time.

Candidate Requirements
Proven, referenceable experience deploying live production apps using Kotlin Multiplatform (KMP).
Strong proficiency in Svelte / SvelteKit and JavaScript for web applications.
Production-level experience managing Firebase architecture (Firestore, Cloud Functions, Security Rules).
Comfortable inheriting existing code without immediately demanding a full rewrite.
Excellent communication skills in English.

New Proposal

Login to your account and send a proposal now to get this project.

Log in

Clarification Board Ask a Question

  • CYTNHIA W.

    How large is the current user base, and are there any known performance or stability issues you're already aware of?
    Has the existing agency provided complete handover documentation, deployment procedures, Firebase configuration details, and app store access, or will part of the engagement involve auditing and documenting the environment?
    Do you currently have separate development, staging, and production Firebase projects, or would establishing that workflow be part of the initial audit?
    Approximately how large is the codebase, and how actively has it been maintained since launch?
    Are there any upcoming iOS or Android compliance deadlines, feature releases, or business milestones that would need prioritizing during onboarding?
    How heavily does the application rely on Firebase Cloud Functions, and are there any third-party integrations currently in use?
    For the city-based gameplay, is waypoint validation handled entirely through GPS/location services, or are there additional mechanisms involved?
    What types of future features are already on the roadmap—new puzzle mechanics, multiplayer elements, gamification, subscriptions, analytics, or content management improvements?
    Do you currently have automated testing, monitoring, crash reporting, and CI/CD pipelines in place, or would those be part of the stabilization phase?
    Are you looking for ongoing retained support after the initial audit, or primarily project-based feature development as new requirements arise?