Lead C++ Developer

We are seeking a talented Lead C++ Developer to join the highly interdisciplinary CoreML team, where you will drive the performance and optimization of both training and serving, delivering massive impact for customers. In this role, you will have exposure to the newest Tensor Processing Unit (TPU), Graphics Processing Unit (GPU) hardware, the latest ML models, and the advanced toolchains that bridge them. Your work will directly enable AI research, production deployments and the broader open-source ecosystem, addressing complex technical issues that directly impact the efficiency and scalability of AI across the industry.

Responsibilities

• Design and optimize high-performance kernels (using languages like Pallas, Mosaic and Triton) targeting TPU and GPU architectures for critical ML operations, from massive training runs to high-speed inference
• Architect infrastructure such as benchmarking suites, autotuning frameworks, performance analysis tools, regression testing and documentation for custom kernels in key OSS libraries
• Track advancements in hardware architectures, compiler technologies and AI models to identify new optimization opportunities
• Collaborate with ML researchers, framework developers (JAX, PyTorch) and compiler engineers (XLA) to enhance adoption, identify requirements and address performance bottlenecks

Requirements

• Bachelor's degree or equivalent practical experience
• 7+ years of industry experience
• 5+ years of software development experience in C++ or Python
• 3+ years of experience testing, maintaining or launching software products
• 1+ year of experience in software design and architecture
• Expertise in kernel-level performance optimization
• English proficiency at B2 level or higher

Nice to have

• Experience optimizing TPU/GPU code using Pallas, CUDA or Triton
• Knowledge of ML frameworks (JAX, PyTorch), attention mechanisms, Mixture of Experts (MoEs) and low-precision formats
• Understanding of modern accelerators, including data movement, pipelining and heterogeneous compute
• Knowledge of compiler principles and toolchains such as MLIR and OpenXLA
• Experience building developer infrastructure and OSS libraries with high-performance APIs and documentation

We offer

• Engineering community of industry professionals
• Friendly team and enjoyable working environment
• Flexible schedule and remote work opportunity within Poland
• Opportunity to work abroad for up to 60 days annually
• Business-driven relocation opportunities

Growth opportunities

• Outstanding career roadmap
• Leadership development, career advising, soft skills and well-being programs
• Certification opportunities (GCP, Azure, AWS)
• Unlimited access to LinkedIn Learning, Get Abstract and Cloud Guru
• English classes

Benefits

• Stable income (Employment Contract or B2B)
• Participation in the Employee Stock Purchase Plan
• Benefits package (health insurance, multisport, shopping vouchers)
• Modern offices with entertainment and relaxation zones, free snacks and coffee
• Referral bonuses
• Corporate, social and well-being events

Please note: The set of bonuses might vary based on the role you apply for – specifics will be discussed during the general interview. We will reach out to selected candidates exclusively.