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Member of Technical Staff, Machine Learning

bjakcareerUnited StatesActAI Engineering
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Salary
Not listed
Job type
Full-time
Work mode
Remote
Posted
28 Sept 2026
Status
Open · checked 7d ago

About this role

ACTAI is hiring a Member of Technical Staff, Machine Learning in the United States to develop core machine learning components for production systems. This position suits engineers who want to build strong systems judgment by shipping, debugging, and iterating on real-world machine learning applications.

Role Overview

ACTAI seeks a Member of Technical Staff, Machine Learning to work on production systems from day one. The professional will construct core machine learning components, fine-tune models, and manage real-world constraints such as cost, reliability, latency, and safety. The organization focuses on building proactive applications that bring intelligence to everyday workflows with minimal prompting.

Key Responsibilities

Build and enhance machine learning components covering data, training, evaluation, and inference.
Fine-tune and adapt models within larger production systems.
Establish evaluation and testing procedures to analyze model behavior.
Construct and maintain data pipelines utilizing real-world and synthetic data.
Troubleshoot model errors, performance bottlenecks, and production incidents.
Deliver iterative improvements based on user feedback while collaborating with senior machine learning engineers and product teams.

Requirements

Possess strong foundations in machine learning and modern neural architectures.
Demonstrate hands-on background in training, fine-tuning, or deploying machine learning models.
Write production-quality code and adapt quickly to new tools.
Show curiosity, coachability, and readiness to learn from live production systems.
Navigate ambiguity with guidance and expand ownership over time.
Maintain a bias toward shipping, iteration, and continuous improvement.

Skills and Tools

Python
PyTorch
JAX
Production machine learning systems running on GPUs

About the Company

ACTAI builds proactive applications designed to bring intelligence to everyday tasks, organizing, and workflows with minimal to no prompting. The company focuses on persistent context, long-running workflow reliability, and real-world task completion to reduce hallucinations and help users spend time on valuable activities. Operating as a small, hands-on, and high-talent-density team, ACTAI makes decisions collectively and moves at rapid speed.

How to Apply

Interested candidates should apply on the official company careers page.

Skills and tech stack

PythonPyTorchJAXGPUsMachine LearningFine-tuning

Questions candidates ask

Where is the Member of Technical Staff, Machine Learning role located?

The position is located in the United States.

What technical stack is used in this role?

The technical stack includes Python, PyTorch or JAX, and production machine learning systems running on GPUs.

What is the primary focus of the machine learning work at ACTAI?

The focus involves building and improving machine learning components across data, training, evaluation, and inference, fine-tuning models, building data pipelines, and debugging production issues under real constraints like latency, cost, reliability, and safety.

What does the interview process look like?

The interview process consists of 3 to 4 interviews conducted via virtual meetings and/or onsite, evaluated by technical team members.

Ready to apply?

The application is on the official bjakcareer careers page.

Apply on company site