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Lead Software Engineer, AI Email App

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

About this role

This position suits an experienced engineering leader with a strong background in backend systems and AI product development who wants to direct technical strategy in Seoul. The role involves leading a senior team to build reliable, AI-native email applications and infrastructure at bjakcareer.

Role Overview

This is a hands-on leadership position based in Seoul, Korea, focusing on the engineering layer that transforms machine learning capabilities into dependable products. The professional in this role will define system architecture across client applications, APIs, and backend services while guiding a compact team of senior developers.

Key Responsibilities

Direct application engineering execution and strategy spanning desktop, mobile, and backend platforms.
Architect dependable systems for machine learning workflows that handle state, tool usage, orchestration, failure recovery, and retries.
Develop APIs and abstractions linking artificial intelligence models directly to practical product features.
Direct a compact, senior engineering group through technical guidance, code assessments, and design evaluations.
Balance technical trade-offs involving security, operational cost, speed, reliability, and user interaction.
Implement robust production standards covering monitoring, testing, observability, and operations.
Collaborate directly with machine learning leaders to convert model functionalities into stable features.
Maintain architectural simplicity and scalability while delivering updates rapidly.

Requirements

Extensive background in directing product or application engineering for intricate software architectures.
Demonstrated practical experience in deploying and developing production-grade backend infrastructure.
Background in developing AI-driven solutions or integrating modern large language model features.
Sound technical judgment capable of guiding decisions despite incomplete data.
Ability to operate across client and backend platforms with deep knowledge in at least one domain.
Strong focus on personal accountability, execution, and iterative learning from actual production use.
Rigorous standards regarding code maintenance, reliability, and foundational software engineering.

Skills and Tools

APIs
Backend Services
Mobile Applications
Desktop Applications
Large Language Models (LLMs)
System Orchestration
Production Monitoring and Observability

About the Company

bjakcareer develops proactive applications designed for global users who do not rely on complex prompting. The organization focuses on bringing intelligence to daily workflows, organization, conversations, and tasks while reducing hallucinations and ensuring high reliability for long-running workflows.

How to Apply

Interested candidates should submit applications directly on the official company careers page.

Skills and tech stack

APIsLLMsLLM

Questions candidates ask

Where is this job located?

The position is based in Seoul, Korea.

What type of employment is this?

This is a full-time role.

Will this person manage a team?

Yes, this is a hands-on leadership role that involves leading a small team of senior engineers.

What platforms are included in the engineering strategy?

The role covers strategy and execution across backend, mobile, and desktop platforms.

What does the interview process look like?

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

Ready to apply?

The application is on the official bjakcareer careers page.

Apply on company site