Quantum error correction (QEC) is essential for the practical implementation of a quantum computer due to the unavoidable interaction of quantum systems with the surrounding environment. The utilization of bosonic modes for encoding quantum information in QEC has attracted significant attention due to its hardware efficiency. This approach leverages the infinite-dimensional Hilbert space of a harmonic oscillator for encoding redundant information, requiring monitoring of only one error syndrome. Furthermore, bosonic modes serve as fundamental and versatile physical systems that can readily interface with a variety of other systems. As a result, they also find widespread applications in quantum communication, quantum simulation, and quantum metrology. In this talk, I will outline our experimental advancements in QEC utilizing bosonic codes, including surpassing the break-even point of QEC and protecting entanglement between two bosonic logical qubits through QEC. Additionally, I will discuss our research on quantum metrology utilizing bosonic modes, showcasing the potential of these systems in precision measurements and sensing applications.