Senior Compiler Engineer (AI)

Location: London, UK; on-site

Starting from £210,000 annually; equity offered

Company

hirify.global develops the DX-1 decode accelerator, a next-generation AI hardware platform combining logic, data movement, packaging, optics, and interconnect at rack scale.

What you will do

• Own and deliver compiler and ML backend projects that support major technical and business milestones.
• Design and implement the compiler, runtime, and debugger connecting PyTorch, TensorFlow, JAX, and MXNet to custom hardware and low-level kernel drivers.
• Build support for a broad ecosystem of large AI models and optimize their performance on the accelerator.
• Apply layout, fusion, scheduling, and tiling techniques to remove bottlenecks and maximize throughput.
• Lead code reviews, coach peers, uphold engineering standards, and guide team direction through accelerator and GPU research and prototyping.
• Partner closely with hardware and modelling teams to understand device trade-offs.

Requirements

• 5+ years of software engineering experience focused on C/C++ programming.
• Deep expertise in ML framework internals, compilers, low-level programming, and optimization techniques.
• Deep expertise optimizing TensorFlow, PyTorch, or JAX deep learning models.
• Deep expertise with multiple toolchains including LLVM, OpenXLA/XLA, MLIR, and TVM.
• Practical experience applying machine learning in high-performance computing contexts.
• Strong problem-solving skills and the ability to think critically and creatively.
• Experience working in high-pace, dynamic environments.
• Excellent teamwork and communication skills, including effective collaboration with cross-functional teams.
• Bachelor’s degree in computer science, electrical engineering, telecoms engineering, mathematics, or a related field.

Nice to have

• Personal projects are a key differentiating factor and carry more weight than other requirements.

Culture & Benefits

• Meaningful stock options and ownership in the company.
• Annual Living-Local Bonus for employees living within 20 minutes of the office.
• Employer-contributed retirement plans.
• Competitive salary based on experience, skills, and location.
• Work on custom AI accelerator hardware and its compiler, runtime, and debugger ecosystem.