AI Accelerator Software Principal Engineer – Runtime Library

Ampere; Warszawa; Hybrid; PLN 301,500 - 452,500; Full time

Benefits offered by this job

Premium medical health care

Generous paid time off

Office amenities: snacks, gym access

Flexible working hours and remote work

Sports card fully financed

Job summary

Ampere is hiring an AI Accelerator Principal Software Engineer – Runtime Library to lead design, development, and optimization of AI runtime software for Ampere accelerators.

You will drive end‑to‑end acceleration paths, collaborate with hardware and platform teams, and enable high throughput, low latency inference across models and frameworks.

Qualifications

• Proven experience developing user‑mode drivers and runtime libraries for GPUs or accelerators in Linux or RTOS.
• Strong C/C++ and systems programming with memory, threading, and performance profiling.
• Hands‑on AI framework enablement including PyTorch, llama.cpp, ONNX.

Responsibilities

• Design, develop, and optimize AI runtime software for Ampere accelerators.
• Own end‑to‑end acceleration paths across SW/HW stack.
• Collaborate with hardware, compilers, and platform teams to match accelerator capabilities.
• Ensure high throughput, low latency inference and scalable performance.

Skills

C/C++

systems‑level programming

Linux

AI framework enablement

PyTorch

llama.cpp

ONNX

performance engineering

GPU/accelerator runtimes

Education

BS in CS/CE/EE or related field

MS or PhD optional

Tools

Linux RTOS environments

Job description

Invent the future with us. Ampere is a semiconductor design company for a new era, leading the future of computing with an innovative approach to CPU design focused on high‑performance, energy efficient AI compute.

Description

Ampere is a semiconductor design company for a new era, leading the future of computing with an innovative approach to CPU design focused on high‑performance, energy efficient AI compute. As a pioneer in the new frontier of energy‑efficient high‑performance computing, Ampere is part of the Softbank Group of companies driving sustainable computing for AI, Cloud, and edge applications. Join us at Ampere and work alongside a passionate and growing team – we’d love to have you apply!

About the Role

As an AI Accelerator Principal Software Engineer – Runtime Library, you will lead the design, development, and optimization of AI runtime software that enables multiple state‑of‑the‑art deep learning models to run efficiently on Ampere’s deep learning accelerators. You will work at the intersection of systems software, performance engineering, and AI enablement, helping deliver high‑throughput, low‑latency inference and a strong foundation for future model and framework support.

What You’ll Achieve

• Build and evolve an AI Runtime Library for Ampere accelerators that supports execution, scheduling, and lifecycle management of deep learning workloads across multiple model types and popular frameworks.
• Own end‑to‑end acceleration paths, going deep into the full SW/HW stack—including:
  • Inference serving and integration layers
  • Compiler/runtime interfaces and graph/IR execution flows
  • Runtime library architecture (APIs, memory management, operators, execution engines)
  • Communication mechanisms and device/host orchestration
• Drive HW/SW co‑design and optimization to improve:
  • Throughput (tokens/requests per second)
  • Latency (kernel execution and scheduling efficiency)
  • Memory efficiency (buffering, paging, reuse, caching)
  • Overall compute utilization and scaling behavior
• Contribute to AI co‑processor/accelerator software enablement, partnering closely with hardware and systems teams to ensure runtime and kernel strategies match accelerator capabilities and constraints.
• Collaborate cross‑functionally to integrate runtime components into Ampere platform stacks, ensuring robust deployment on target environments and consistent performance in production‑like workloads.

About You

• BS Computer Science, Computer Engineering, Electrical Engineering, or Software Engineering or related technical field & 8 years of related experience; or MS degree & 6 years; or PhD & 3 years.
• Proven experience developing user‑mode drivers and/or runtime libraries for GPUs or deep learning accelerators in Linux or RTOS environments.
• Strong expertise in C/C++ and systems‑level programming (memory, threading, synchronization, performance profiling).
• Demonstrated background in AI framework enablement, with hands‑on experience in one or more of:
  • PyTorch (operator/runtime integration, graph execution, correctness/performance work)
  • llama.cpp (inference/runtime execution patterns)
  • ONNX (graph handling, interoperability, execution engines)
• Strong performance engineering skills, including profiling/diagnostics and optimization of execution pipelines, data movement, and compute kernels.
• Ability to operate effectively in a collaborative environment—owning complex components while partnering with compilers, hardware, and platform teams.

What We’ll Offer

At Ampere we believe in taking care of our employees and providing a competitive total rewards package that includes base pay, cash long‑term incentive, and comprehensive benefits. The full base pay range for this role is between 301,500 PLN and 452,500 PLN.

Benefit Highlights Include

• Premium medical health care, so that you and your family members can feel secure in your health.
• A generous paid time off policy so that you can embrace a healthy work‑life balance.
• A wide variety of office amenities including nutritious snacks and refreshing drinks, free gym and sauna access to keep you fueled and healthy.
• Flexible working hours and a remote work policy that includes reimbursement of connectivity costs and equipment to work from home.
• Sports card fully financed by Ampere.

Ampere is an inclusive and equal opportunity employer and welcomes applicants from all backgrounds. All qualified applicants will receive consideration for employment without regard to race, color, national origin, citizenship, religion, age, veteran and/or military status, sex, sexual orientation, gender, gender identity, gender expression, physical or mental disability, or any other basis protected by federal, state or local law.