Cross-Platform Developer Needed for Custom Blockchain Installer and Dual Mining Setup

We are seeking an experienced developer to create a cross-platform installer (macOS, Windows, Ubuntu) for a blockchain project. The installer will configure and launch a core blockchain application along with a dual-mining setup that supports two cryptocurrencies simultaneously.

Responsibilities:

Develop a GUI-based installer using Python/Tkinter or similar tools.
Install and configure the core blockchain software for both cryptocurrencies.
Integrate CPU/GPU mining software for dual-mining support.
Ensure compatibility with various operating systems (macOS, Windows 7+, Ubuntu 14.04+).
Create desktop shortcuts and manage resources for efficient mining.
Implement error handling, configuration settings, and wallet management.
Requirements:

Strong experience in Python, C++, or other relevant languages.
Knowledge of blockchain protocols and mining algorithms.
Experience with cross-platform development.
Familiarity with dependencies management (e.g., Homebrew, MSYS2, APT).
Experience with GUI frameworks like Tkinter or similar.
Please provide a portfolio of relevant work and expected delivery timelines.