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Product Engineer, AI Email App

bjakcareerUnited StatesActAI 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

In the United States, bjakcareer seeks a Product Engineer for an AI Email App to build proactive applications that organise daily workflows with minimal prompting. This position suits an experienced technical professional ready to work at the intersection of user needs, model capability, and engineering constraints.

Role Overview

The Product Engineer, AI Email App works at the organization to build AI-native applications focused on long-running workflows, persistent context, and real-world task completion. This hands-on position requires collaborating directly with machine learning and engineering teams to define system behavior, measurement standards, and continuous improvements. The role demands balancing quality, latency, cost, reliability, safety, and user experience.

Key Responsibilities

Define end-to-end requirements for artificial intelligence capabilities ranging from model functionality to user experience.
Translate model capabilities, evaluation results, and technical constraints into clear product and system decisions.
Collaborate closely with machine learning, backend, and client engineers on system design, evaluation, and iteration.
Define and evolve evaluation frameworks across offline metrics, online experiments, and human feedback.
Identify failure modes to ensure artificial intelligence systems behave predictably and recover gracefully.

Requirements

Strong computer science fundamentals and system design skills.
Solid understanding of modern machine learning and production AI system behavior.
Significant experience owning complex, technical products end-to-end.
Hands-on experience with artificial intelligence-powered products, particularly large language model-based systems.
Ability to turn ambiguous problems into clear requirements, measurable outcomes, and executable plans.

Nice to Have

Experience shipping artificial intelligence-heavy consumer products.
Background as an engineer or highly technical product manager.
Experience defining evaluation metrics for machine learning systems.
Strong intuition for artificial intelligence user experience patterns and failure handling.
Prior experience in zero-to-one product environments.

Skills and Tools

Large Language Models
Machine Learning System Evaluation
Experimentation and Prompting
System Design

About the Company

bjakcareer builds proactive applications designed to bring intelligence to conversations, errands, organising, and workflows for users globally. Operating as a small, high-talent-density, and hands-on team, the organization maintains a fast-moving, zero-to-one environment where engineers and product leaders exercise broad ownership.

How to Apply

Interested candidates should apply on the official company careers page.

Skills and tech stack

Questions candidates ask

Where is the Product Engineer role located?

The position is located in the United States.

What type of product does this role focus on?

The role focuses on an AI email application designed to bring intelligence to conversations, errands, organizing, and workflows with minimal to no prompting.

What kind of background is beneficial for this position?

An engineering background or experience as a highly technical product manager is considered a strong plus.

What does the interview process involve?

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

What level of experience is required with AI systems?

Candidates need hands-on experience with AI-powered products, particularly LLM-based systems, along with experience in model evaluation, experimentation, prompting, or AI system iteration.

Ready to apply?

The application is on the official bjakcareer careers page.

Apply on company site