Join the core Qiskit SDK team as a Software Developer and contribute to shaping the future of quantum computing through systems programming, compiler infrastructure, and open-source development. You will design, implement, and maintain performance-critical components and APIs for the Qiskit SDK, ensuring high-quality, well-tested code with strong usability and backward compatibility. Responsibilities include developing compiler and transpilation infrastructure, reviewing contributions from internal and external sources, participating in open-source workflows, and collaborating closely with research, hardware, and product teams to support users and partners. The role requires proficiency in Rust for production-grade performance-aware coding, along with working knowledge of Python for API support and mixed systems development. Essential skills include software engineering fundamentals, experience with quantum computing SDKs, and familiarity with compiler concepts.