A framework for trading at financial markets (python/c#)

The goal is to develop python/c# framework for development and optimization of trading systems (bots) for financial markets. Several open frameworks such as lean, zipline, backtrader, pyalgotrade etc are available but they are complicated for quantitative analysts. We need simple library for users with basic programming skills. It should include the following modules: venues integration&market data, logic core, order execution, charts, trading monitor (simple trading panel with trade blotter) and optimizier. It should be run in live, paper and backtest modes and optimized then. It must be suitable for both exchange and margin trading at different markets (forex, crypto, derivatives, stocks). It must work with multiple connections and instruments within a trading system. The market data should include both level1 and level2. The framework must include universal FIX connector and must be integrated to external database. I'm waiting for quotes from engineers with appropriate experience. I can provide with detailed information.