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Senior Machine Learning Engineer

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

About this role

Senior Machine Learning Engineer at bjakcareer in China is a hands-on position suited for an experienced professional who wants to build proactive artificial intelligence applications for global users. The role involves independently owning critical production machine learning subsystems to organize daily workflows and tasks with minimal prompting.

Role Overview

This position functions as a Senior Member of Technical Staff in Machine Learning. The person in this role takes ambiguous problems, designs practical solutions, and ships systems that operate reliably at scale.

Key Responsibilities

Build core machine learning systems powering a proactive, long-horizon artificial intelligence product.
Own work end-to-end spanning data preparation, training, evaluation, inference, and iteration.
Convert research concepts into working systems operating reliably in production.
Debug model failures and system issues using real production signals.
Iterate rapidly by shipping, measuring outcomes, refining, and repeating.
Partner with research, product, and engineering groups to deliver real user impact.
Mentor and review work from other machine learning engineers.
Navigate production constraints involving latency, cost, reliability, and safety.

Requirements

Build and ship machine learning systems used by real users.
Understand how modern machine learning models behave and misbehave in production.
Write production-quality code and think in systems rather than scripts.
Take ownership, work independently, and execute projects completely.
Learn quickly, communicate clearly, and improve through continuous iteration.

Skills and Tools

Python
PyTorch
JAX
GPU-based training and inference systems

About the Company

ACTAI focuses on building proactive applications for billions of users globally who utilize basic tools like email, notes, tasks, calendar, and workflows without requiring complex prompting. The organization aims to bring intelligence to everyday tasks, reduce hallucinations, maintain persistent context, and achieve high reliability for long-running workflows.

How to Apply

Candidates should apply directly on the official company careers page.

Skills and tech stack

Questions candidates ask

What is the primary focus of the role?

The role focuses on building core machine learning systems for a proactive, long-horizon artificial intelligence product, owning work end-to-end from data preparation to production inference.

What technical stack is used?

The technology stack includes Python, PyTorch, JAX, and GPU-based training and inference systems.

What are the expectations regarding collaboration and leadership?

The engineer collaborates closely with research, product, and engineering teams while mentoring and reviewing work from other machine learning engineers.

What does the interview process involve?

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

Ready to apply?

The application is on the official bjakcareer careers page.

Apply on company site