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Product Engineer, AI Email App

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 9d ago

About this role

The Product Engineer, AI Email App is a full-time position located in China at bjakcareer, focusing on building proactive AI-native communication tools for global users. This role suits a hands-on technical professional who bridges user needs, machine learning models, and engineering limitations to deliver reliable AI applications.

Role Overview

Product Engineer, AI Email App is an operational position based in China. The role centers on developing proactive, AI-driven applications for users who do not rely on complex prompting. The professional holding this position collaborates closely with machine learning, backend, and client engineering teams to direct system behavior, measurement, and ongoing enhancements.

Key Responsibilities

Outline complete specifications for artificial intelligence functions, covering model performance, system operations, and user interaction.
Translate model capabilities, assessment outcomes, and technical boundaries into concrete product and system choices.
Balance trade-offs regarding quality, latency, expenses, reliability, safety, and user experience.
Partner with machine learning, backend, and client engineers on architecture design, testing, and iteration.
Develop and advance assessment frameworks across offline measurements, online trials, and user feedback.
Formulate quality thresholds and feedback loops for AI-driven features.
Direct execution through precise specifications, prioritization, and technical reasoning.
Spot failure modes and guarantee predictable system behavior and graceful recovery.
Manage overall product quality, correctness, reliability, utility, and user trust.

Requirements

Strong background in computer science fundamentals and system design abilities.
Solid comprehension of contemporary machine learning and production behavior for artificial intelligence systems.
Ability to read technical designs, understand architectures, and collaborate with engineers.
Intuition regarding model limitations, hallucinations, evaluation, and failure modes.
Extensive experience managing complex technical products from inception to completion.
Hands-on background with artificial intelligence products, particularly large language model systems.
Familiarity with model evaluation, experimentation, prompting, or AI system iteration.
Competence in converting ambiguous problems into actionable requirements, measurable results, and operational plans.
Strong judgment for decision-making under ambiguous conditions.

Nice to Have

Experience releasing AI-heavy consumer products.
Background as an engineer or technical product manager.
Experience establishing evaluation metrics for machine learning systems.
Intuition for artificial intelligence user experience patterns and failure management.
Previous background in zero-to-one product settings.

Skills and Tools

Large Language Models
Machine Learning Systems
System Design
AI User Experience
Model Evaluation Frameworks

About the Company

bjakcareer develops proactive applications designed to bring intelligence to conversations, errands, organizing, and workflows without requiring complex prompting. The organization operates as a small, talent-dense team where engineers and product leaders maintain broad ownership and independent execution.

How to Apply

Interested candidates should apply on the official company careers page.

Skills and tech stack

LLM

Questions candidates ask

What is the location of the Product Engineer, AI Email App role?

The position is located in China.

What type of employment is this?

This is a full-time position.

Who will the Product Engineer work with?

The engineer will work directly with machine learning, backend, and client engineering teams.

What is the interview process like?

The interview process consists of three to four interviews conducted via virtual meetings and/or onsite sessions.

Ready to apply?

The application is on the official bjakcareer careers page.

Apply on company site