Infrastructure & Technology Senior Software Developer - Qiskit Professional Yorktown Heights, US

Qiskit is IBM Quantum’s flagship open‑source software development kit for quantum computing, enabling the development, compilation, and execution of quantum programs for a broad community of researchers, developers and industry partners. As part of IBM Quantum, the Qiskit SDK team is building the foundations of a high‑performance, open, and platform‑neutral quantum compiler and SDK, with the long‑term vision of becoming the standard library and toolchain for quantum computing. Qiskit emphasizes production‑grade quality and performance, offering a platform with Python and C APIs and a design that accommodates future language bindings. Role and Responsibilities Design, implement, and maintain core Qiskit SDK components and APIs. Develop high‑quality, well‑tested, performance‑critical code, with strong attention to usability, extensibility, and backward compatibility. Contribute to compiler and transpilation infrastructure, including IRs, optimization passes, and compilation pipelines. Review and mentor contributions from internal engineers and external open‑source contributors. Participate actively in open‑source workflows, including design discussions, code reviews, documentation, and releases. Collaborate closely with research, HPC, hardware, and product teams, and support external users and partners. Debug and resolve complex issues across a large, evolving codebase. Required Education Bachelor’s Degree Preferred Education Doctorate Degree Required Technical and Professional Expertise Strong proficiency in Rust and Python, with demonstrated experience building and maintaining performance‑critical systems. Deep experience designing, building, or maintaining compiler frameworks or complex compilation pipelines. Strong understanding of compiler architecture, including IRs, optimization passes and compilation pipelines. Significant experience contributing to or maintaining large open‑source projects, including active participation in design discussions and reviews. Preferred Technical and Professional Experience Hands‑on experience with LLVM, MLIR, or similar compiler infrastructures. Experience designing custom IRs or domain‑specific compilation workflows. Strong familiarity with quantum compiler concepts, such as circuit representations, compilation, optimization, or synthesis. Job Details Job Title: Senior Software Developer - Qiskit Location: Yorktown Heights, New York, United States Work Arrangement: Hybrid Employment Type: Regular (Full‑time) Contract Type: Regular Salary Range: $225,000.00 – $275,000.00 per year Position Type: Professional Job ID: 109737 Posted on: 20-Apr-2026 Equal‑Opportunity Employer IBM is proud to be an equal‑opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, genetics, pregnancy, disability, neurodivergence, age, or other characteristics protected by the applicable law. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status. #J-18808-Ljbffr