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
• Architect benchmarking suites, autotuning frameworks, performance analysis tools, regression testing and documentation for custom kernels in OSS libraries
• Track advancements in hardware architectures, compiler technologies and AI models to identify new performance optimization opportunities
• Collaborate with ML researchers, framework developers (JAX, PyTorch) and compiler engineers (XLA) to enhance adoption and resolve bottlenecks

Requirements

• Bachelor's degree or equivalent practical experience
• 7+ years of industry experience
• 5+ years of software development in C++ or Python
• 3+ years testing, maintaining or launching software products and 1+ year 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) and model optimization techniques
• Understanding of modern accelerators and heterogeneous compute
• Knowledge of compiler principles and toolchains such as MLIR and OpenXLA
• Experience building OSS libraries and high-performance APIs

We offer

• Engineering community of industry professionals
• Friendly team and enjoyable working environment
• Flexible schedule and remote work 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 and well-being programs
• Certification (GCP, Azure, AWS)
• Access to LinkedIn Learning, Get Abstract, Cloud Guru
• English classes

Benefits

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