A Bioperl developer leverages the Bioperl software toolkit to develop applications and systems for bioinformatics, a field that combines biology and information technology. Bioperl developers use Perl language to analyze and manipulate genomic data, perform sequence alignments, run simulations, and create visualizations. They contribute to the Bioperl open-source project by developing and maintaining modules, fixing bugs, and enhancing functionality. Additionally, they often collaborate with biologists, bioinformaticians, and other developers, translating biological research needs into efficient computational solutions, ensuring the software is user-friendly, robust, and meets scientific requirements.