  Parametric amplifiers play a crucial role in modern quantum technology by
enabling the enhancement of weak signals with minimal added noise.
Traditionally, Josephson junctions have been the primary choice for
constructing parametric amplifiers. Nevertheless, high-kinetic inductance thin
films have emerged as viable alternatives to engineer the necessary
nonlinearity. In this work, we introduce and characterize a Kinetic Inductance
Parametric Amplifier (KIPA) built using high-quality NbN superconducting thin
films. The KIPA addresses some of the limitations of traditional
Josephson-based parametric amplifiers, excelling in dynamic range, operational
temperature, and magnetic field resilience. We demonstrate a quantum-limited
amplification (> 20 dB) with a 20 MHz gain-bandwidth product, operational at
fields up to 6 Tesla and temperatures as high as 850 mK. Harnessing kinetic
inductance in NbN thin films, the KIPA emerges as a robust solution for quantum
signal amplification, enhancing research possibilities in quantum information
processing and low-temperature quantum experiments. Its magnetic field
compatibility and quantum-limited performance at high temperatures make it an
invaluable tool, promising new advancements in quantum research.
