Full Stack Software Engineer - IBM Quantum

Location: Yorktown Heights

Introduction

At IBM Research, we are the innovation engine of IBM. Exploring what's next in computing and shaping the technologies the world will rely on tomorrow. From advancing AI and hybrid cloud to pioneering practical quantum computing, we anticipate challenges and unlock new opportunities for clients, partners, and society. Working in Research means joining a team that accelerates discovery at the intersection of high-performance computing, AI, quantum, and cloud.

You'll collaborate with leading scientists, engineers, and visionaries to push boundaries and turn ideas into reality. With a culture built on curiosity, creativity, and collaboration, IBM Research offers the opportunity to grow your career while contributing to breakthroughs that transform industries and change the world.

Your role and responsibilities

* Design and implement high‑performance, scalable Python code for compute‑intensive applications

* Analyze, refactor, and optimize large and complex existing Python codebases

* Develop and evaluate efficient algorithms and data structures

* Identify and resolve performance bottlenecks (CPU, memory, I/O) providing robust solutions

* Use profiling, benchmarking, and debugging tools to guide optimizations

* Collaborate closely with engineers, architects and researchers on performance‑critical components

* Ensure code quality, maintainability, and testability and drive adoption of best practices

Required education

Bachelor's Degree

Preferred education

Master's Degree

Required technical and professional expertise

* Demonstrated optimization of Python libraries

* Proven expertise in performance‑critical Python programming and optimization

* Strong background in algorithms, data structures, and complexity analysis

* Experience working with large, legacy or long‑lived codebases

* C/C++ & Rust integrations or low‑level systems programming

Preferred technical and professional experience

* Experience with numerical computing or data‑intensive systems

* Familiarity with CI/CD pipelines

* Background in computer science, mathematics, physics, or a related field

* Hands‑on experience with performance techniques such as:

* Profiling and benchmarking (e.g., cProfile, )

* Low‑level optimization (e.g., Num Py, Numba, Cython)

* Parallelism and concurrency (multiprocessing, multithreading, async programming)

ABOUT BUSINESS UNIT

IBM Research is the organic growth engine of IBM and an innovation engine for our customers and partners. As part of this mission, IBM Research anticipates and examines 'What's Next in Computing' to ultimately create and integrate the technologies the world relies upon to solve big challenges and unlock new opportunities. We create and pioneer new markets for IBM, our partners and customers as exemplified in our ongoing quest to reach practical and large-scale quantum computing.

Across IBM Research, we realize the power and potential to accelerate discovery with our partners and clients by combining the power of high performance computing, AI, and Quantum, all integrated through the hybrid cloud.

YOUR LIFE @ IBM

In a world where technology never stands still, we understand that, dedication to our clients success, innovation that matters, and trust and personal responsibility in all our relationships, lives in what we do as IBMers as we strive to be the catalyst that makes the world work better.

Being an IBMer means you'll be able to learn and develop yourself and your career, you'll be encouraged to be courageous and experiment everyday, all whilst having continuous trust and support in an environment where everyone can thrive whatever their personal or professional background.

Our IBMers are growth minded, always staying curious, open to feedback and learning new information and skills to constantly transform themselves and our company. They are trusted to provide on-going feedback to help other IBMers grow, as well as collaborate with colleagues keeping in mind a team focused approach to include different perspectives to drive exceptional outcomes for our customers. The courage our IBMers have to make critical decisions everyday is essential to IBM becoming the catalyst for progress, always embracing…