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Staff Software Engineer, AI Email App

bjakcareerSeoul, KoreaActAI 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 Seoul, Korea, the Staff Software Engineer, AI Email App position at bjakcareer involves directing the engineering strategy for an AI-native productivity application. This hands-on leadership role suits an experienced engineer who can design reliable systems, guide architectural decisions, and mentor a small team of senior professionals.

Role Overview

The organization focuses on creating proactive software that reduces the need for complex user prompting within daily tools like email. The person in this position takes charge of the engineering layer that translates artificial intelligence capabilities into dependable product features across desktop, mobile, and backend services. This requires balancing performance, security, operational costs, and latency while maintaining simple and scalable architectures.

Key Responsibilities

Direct application engineering strategy and execution spanning backend, desktop, and mobile platforms.
Architect resilient systems for artificial intelligence workflows, managing orchestration, state, retries, fallbacks, and failure management.
Construct APIs and abstractions linking artificial intelligence models directly to product experiences.
Direct a compact, senior engineering team through technical mentoring, code reviews, and design evaluations.
Evaluate trade-offs involving user experience, reliability, latency, cost, and security.
Set up robust production foundations encompassing monitoring, observability, testing, and operational standards.
Collaborate alongside machine learning leadership to transform model capabilities into stable product offerings.
Maintain architectural simplicity while shipping features rapidly at scale.

Requirements

Demonstrated background in leading application or product engineering for intricate architectures.
Practical history of constructing and deploying production backend systems.
Prior involvement in developing artificial intelligence products or systems integrated with modern large language models.
Sound technical judgment capable of guiding decisions under uncertain conditions.
Capability to operate across client and backend platforms with deep proficiency in at least one.
Strong focus on personal ownership, rapid deployment, and practical learning.
Strict standards regarding code quality, reliability, and fundamental engineering practices.

Skills and Tools

Backend systems
Mobile platforms
Desktop platforms
APIs
Machine learning and LLM capabilities
System observability and monitoring

About the Company

bjakcareer operates as a compact, high-talent-density team focused on practical engineering execution with minimal bureaucracy. The group builds proactive, artificial intelligence native applications designed to organize daily life and tasks for users worldwide without requiring complex prompting.

How to Apply

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

Skills and tech stack

Questions candidates ask

Where is the job located?

The role is located in Seoul, Korea.

What is the primary focus of the product?

The product focuses on building proactive, AI-native applications for everyday tools like email to help organize workflows with minimal or no prompting.

Will this role involve management duties?

Yes, this is a hands-on leadership position where the engineer leads a small, senior engineering team while staying close to the code.

What does the interview process look like?

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

Ready to apply?

The application is on the official bjakcareer careers page.

Apply on company site