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Principal Software 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 7d ago

About this role

Based in China, the Principal Software Engineer, AI Email App role at bjakcareer involves directing the engineering strategy for an AI-native email application. This position suits an experienced engineering leader who wants to build reliable, scalable software that integrates machine learning capabilities into everyday user workflows.

Role Overview

Operating in China, this position places the professional in charge of the engineering layer that transforms artificial intelligence functions into dependable software products. The individual defines architecture spanning backend services, APIs, and client platforms while guiding a compact group of senior technologists.

Key Responsibilities

Direct application engineering strategy and execution across desktop, mobile, and backend systems.
Create dependable architectures for AI-driven workflows covering orchestration, state management, fallbacks, tool usage, retries, and failure management.
Develop APIs and abstractions linking artificial intelligence functionality directly to practical product features.
Direct a compact team of senior engineers through code evaluations, design assessments, and direct guidance.
Balance performance trade-offs involving latency, security, operational expenses, reliability, and user interaction.
Set up robust production operations including monitoring, observability, rigorous testing, and operational standards.
Collaborate directly with machine learning leadership to convert model functions into stable user products.

Requirements

Extensive background in directing product or application engineering for intricate software architectures.
Demonstrated practical experience in constructing and deploying production backend systems.
Background in developing AI-powered software or architectures utilizing modern large language model features.
Strong technical decision-making ability under conditions of incomplete information.
Experience working across client and backend platforms, with deep proficiency in at least one domain.
High standards for engineering fundamentals, software reliability, and code quality.

Skills and Tools

Backend systems
APIs
Mobile platforms
Desktop platforms
Large language models (LLMs)

About the Company

bjakcareer develops proactive software applications designed to bring intelligence to daily tasks, communication, organization, and workflows without requiring complex user prompting.

How to Apply

Candidates should apply on the official company careers page.

Skills and tech stack

APIsLLMsMobileDesktopBackendLLM

Questions candidates ask

Where is the job located?

The position is located in China.

What is the primary focus of the role?

The engineer owns the technology layer that turns artificial intelligence capabilities into a dependable product, shaping architecture across backend services, APIs, and client platforms while leading a small team.

What kind of experience is required for this position?

The candidate needs significant experience leading product or application engineering for complex systems, a strong background building and shipping production backends, and experience building AI-powered systems.

How many interview rounds are part of the process?

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

Ready to apply?

The application is on the official bjakcareer careers page.

Apply on company site