This thesis focuses on the design and implementation of a multi-agent system based on large language models (LLMs) for supporting collaborative problem-solving in software development and deployment environments. The system will consist of specialized agents that cooperate to perform tasks across the software lifecycle, such as gathering requirements from tools like JIRA, developing and testing code, managing repositories on GitHub, and deploying applications via Jenkins. The work will include the design of the agent architecture, evaluation of suitable orchestration frameworks, and implementation of a prototype demonstrating automated end-to-end development workflows. The thesis will be conducted in collaboration with AT&T on selected real use cases. The complete source code and documentation will be publicly available in the IS under the MIT license.