An AmiBroker developer specializes in creating and modifying trading systems using AmiBroker, a comprehensive technical analysis and portfolio management tool. They design custom algorithms, indicators, and strategies to analyze financial market data and make trading decisions. An AmiBroker developer typically works with traders, portfolio managers, and financial analysts to implement their trading ideas into automated systems. They also perform backtesting and optimization of trading strategies to ensure their effectiveness and profitability. Additionally, they troubleshoot and solve any technical issues related to AmiBroker software. Their work contributes to making informed and efficient trading decisions.