Member of Technical Staff, Machine Learning Engineer

What You'll Work On

At Reinforce Labs, we partner directly with customers to build AI systems that enhance the safety and reliability of their complex, high-impact applications. In this role, you'll engage directly with clients to deeply understand their specific challenges, conduct thorough data analysis, and deliver trust and safety AI solutions. You'll implement advanced machine learning techniques including LLMs, reinforcement learning, and deep learning - often translating cutting-edge research papers into practical applications.

This position combines technical depth with significant client-facing responsibilities. You'll tackle high-stakes problems with unclear solutions but real-world consequences. Key responsibilities include :

Conducting technical research with customers to map critical workflows and developing sophisticated AI probes that identify potential edge-case failures

Performing comprehensive data analysis to build specialized classifiers that detect subtle risks, violations, and anomalies

Implementing and fine-tuning generative models that can simulate rare or high-risk scenarios

Designing systems that enhance human decision-making under pressure

Our success is measured by real-world impact. You'll develop and ship solutions that protect people and platforms at scale while building trusted relationships with the clients who depend on our technology.

Must-Have

Experience with ML and deep learning frameworks such as PyTorch or TensorFlow

Ability to translate cutting-edge research papers into practical AI applications

Strong analytical skills to identify trust and safety threat patterns and challenges

Hands-on experience training and deploying machine learning models in production

Proficiency in Python

Nice-to-Have

Experience partnering with trust & safety leads and background in trust & safety, moderation, AI safety, or security-focused ML to deliver state-of-the‑art solutions [a big plus]

An advanced degree in computer science or a related field

Experience in early-stage startups

Experience in customer-facing AI technical solutions

Contributions to high value AI / ML community projects

Who We Are

Reinforce Labs is a small team with a clear mission : to use AI to make critical systems safer, not just smarter.

We value :

Willingness to learn new things, take on diverse tasks, and challenge yourself

Hands‑on technical excellence

Ownership

Ability to handle ambiguity

Fast, results‑driven delivery

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