Quantum Source is a novel key player at the forefront of the worldwide effort towards large-scale quantum computation. Based on proprietary technology, Quantum Source is developing a unique fault-tolerant compound photon–atom quantum computer.<br id="isPasted">We are a young, dynamic, and extraordinarily multidisciplinary company that combines the fields of quantum physics, optics, mechanical engineering, hardware, firmware, and software.<br>We are seeking a highly skilled and motivated Researcher to join the Applications Team within the Theory Group.<br>The Quantum Applications Team is responsible for exploring practical applications and quantum algorithms that leverage Quantum Source's fault-tolerant quantum computing (FTQC) architecture — identifying high-impact use cases, developing and benchmarking quantum algorithms, and collaborating with industry and academic partners to demonstrate the advantage of our hardware.<br>As a Researcher on the team, your core focus will be quantum resource estimation — determining the runtime and physical footprint required to solve problems of practical significance on our hardware, for algorithms ranging from cryptanalysis to quantum simulation for chemistry and materials. Over time, you will help expand the team's application portfolio and demonstrate the advantages of Quantum Source's hardware across a growing range of use cases.