Principal ML Solutions Architect (AI)

TL;DR

Principal ML Solutions Architect (AI): Designing and implementing optimized inference and fine-tuning workflows for a serverless LLM platform with an accent on performance, quality, and scalability. Focus on optimizing LLM inference at the framework and hardware level, leading fine-tuning efforts, and shaping the platform roadmap.

Location: Remote (United States)

Salary: $208,000 - $261,000 USD

Company

hirify.global is building a full-stack AI cloud platform that supports developers and enterprises from data and model training through to production deployment.

What you will do

• Own the most complex, high-stakes customer engagements from architecture through production across multiple modalities.
• Optimize LLM inference at the framework and hardware level and codify best practices into reusable playbooks.
• Lead supervised and reinforcement fine-tuning (SFT/RLHF) efforts to maximize model quality.
• Design and implement production-ready LLM solutions using Token Factory's inference services.
• Partner with product, engineering, and research teams to prototype features and influence the platform roadmap.
• Mentor Senior and mid-level Solutions Architects to raise the overall technical bar of the team.

Requirements

• 8+ years of experience in ML/AI systems, with at least 4 years focused on LLMs and generative AI.
• Expert knowledge of model architectures, fine-tuning approaches, and inference internals.
• Deep hands-on command of inference optimization, including quantization, KV-cache management, and batching.
• Experience running LLMs in production at scale using frameworks like vLLM, SGLang, or TensorRT-LLM.
• Strong Python programming skills and ability to explain technical concepts to diverse audiences.
• Must be authorized to work in the United States.

Nice to have

• Contributions to major OSS inference/ML projects (vLLM, SGLang, TensorRT-LLM).
• Published research or technical writing in the LLM/serving space.
• Experience with multimodal AI models (vision-language, speech).
• Proficiency with DevOps tooling such as Docker, Kubernetes, and infrastructure-as-code.

Culture & Benefits

• 100% company-paid medical, dental, and vision coverage for employees and families.
• 401(k) plan with up to 4% company match and immediate vesting.
• Generous parental leave: 20 weeks for primary and 12 weeks for secondary caregivers.
• Remote work reimbursement of up to $85/month for mobile and internet.
• Company-paid short-term, long-term, and life insurance.