Staff / Principal Machine Learning Engineer (AI)

TL;DR

Staff / Principal Machine Learning Engineer (AI Serving): Developing and optimizing high-performance real-time multimodal model serving systems with an accent on inference optimization and distributed scaling. Focus on reducing latency, increasing throughput, and ensuring production reliability for thousands of concurrent queries.

Location: Must have the legal right to work in the United Kingdom (no visa sponsorship available)

Salary: £140,000 – £200,000

Company

hirify.global is a product-oriented research lab developing best-in-class real-time multimodal models and a high-performance orchestration platform.

What you will do

• Optimize model serving using frameworks such as vLLM or TRT-LLM.
• Implement model acceleration via quantization, distillation, caching strategies, and speculative decoding.
• Develop high-performance systems using C++, CUDA, Rust, or highly optimized Python.
• Scale inference across multi-GPU and multi-node environments using Kubernetes and Ray.
• Take models from research to production, handling containerization and ensuring stability.

Requirements

• Legal right to work in the United Kingdom is required.
• Deep understanding of modern serving frameworks and inference optimization techniques.
• Proficiency in high-performance languages (C++, CUDA, Rust, or optimized Python).
• Experience with distributed systems and handling thousands of concurrent connections.
• PhD in CS, Physics, Math, or equivalent practical experience building backend/ML systems.
• Demonstrable track record through public projects or open-source contributions.

Culture & Benefits

• Flat organizational structure with fast iterations and minimal process overhead.
• Environment that values ownership, autonomy, and a bias for impact.
• Support for open-source contributions that advance the field of AI.
• Compensation includes base salary, equity, and benefits.
• Future relocation support and visa sponsorship for the San Francisco Bay Area may be available.