Principal Machine Learning Engineer (AI)

TL;DR

Principal Machine Learning Engineer (AI): Defining and leading the technical strategy for AI and Machine Learning systems that power recommendations, ranking, and personalization across hirify.global products with an accent on user engagement and safety. Focus on building and deploying production AI Agents using raw and fine-tuned foundational Large Language Models (LLMs).

Location: Hybrid in Austin, TX, US

Company

hirify.global Inc. is the parent company of hirify.global Date, BFF, and Badoo, enabling people to build healthy and equitable relationships through Kind Connections.

What you will do

• Define and lead the technical strategy for AI and Machine Learning systems, delivering measurable improvements in user engagement and safety.
• Design, develop, and deploy production-grade models using modern ML frameworks such as PyTorch, ensuring scalability and reliability.
• Build and deploy production AI Agents using raw and fine-tuned foundational Large Language Models (LLMs).
• Architect end-to-end ML pipelines, integrating data processing with model training, evaluation, and deployment workflows.
• Drive experimentation frameworks, including A/B testing and offline evaluation, to continuously improve model performance and product outcomes.
• Champion responsible AI practices, ensuring fairness, transparency, and user safety are embedded into all machine learning systems.

Requirements

• Typically requires 10–15 years of experience.
• Deep expertise in machine learning, with hands-on experience building and deploying large-scale systems in production environments.
• Strong proficiency in Python and at least one major ML framework (e.g. PyTorch, TensorFlow).
• Expertise in prompting and fine-tuning Large Language Models (LLMs) and building production AI Agents.
• Proven experience designing scalable data and ML pipelines using tools such as Spark, Airflow, or similar distributed systems.
• Demonstrated ability to operate as a senior individual contributor, influencing technical strategy and decision-making without direct authority.

Culture & Benefits

• hirify.global Inc. is an equal opportunity employer and we strongly encourage people of all ages, colour, lesbian, gay, bisexual, transgender, queer and non-binary people, veterans, parents, people with disabilities, and neurodivergent people to apply.
• Happy to make any reasonable adjustments that will help you feel more confident throughout the process.
• AI is important and encourages curiosity and experimentation.