Software Engineer, AI Agent
Salary not listed • Seoul, South Korea • Full-time
Posted 9mo ago
This job has been open for more than 60 days. It may no longer be actively hiring, so check with the company before putting a lot into an application.
About the job
Delight.ai (formerly Sendbird) is pivoting to an AI-first customer experience, building an AI concierge that goes beyond transactional interactions to create a feeling of being understood and cared for. The company leverages a decade of experience in communication infrastructure to develop AI agents with memory, learning capabilities, and cross-channel context. This role is central to developing these core AI agent capabilities, from architecture to production, focusing on orchestration, prompt engineering, and platform scalability. The ideal candidate is a proactive system thinker who uses AI tools in their daily workflow and is passionate about mentoring others.
Responsibilities
- Design and implement core agent features including advanced RAG pipelines, multi-step tool use, and agent orchestration logic.
- Drive architectural decisions for the AI agent platform with a focus on fault tolerance, scalability, and extensibility.
- Build and optimize evaluation, observability, and classification pipelines to improve agent performance.
- Lead prompt engineering strategy, including designing A/B testing and automated regression pipelines.
- Improve retrieval logic and embedding models for RAG pipeline performance.
- Monitor AI research and integrate relevant techniques into production systems.
- Guide junior engineers and interns through code reviews, architectural discussions, and technical planning.
- Partner with PMs, designers, and sales engineers to translate customer needs into technical solutions.
Requirements
- 3+ years of software engineering experience with direct ownership of AI/ML or backend systems in production.
- Deep Python expertise with a proven track record of building and scaling reliable, performant systems.
- Hands-on experience with LLM APIs.
- Strong system design and architecture skills, including distributed systems and cloud-native deployments on AWS or GCP.
- Strong English proficiency for clear technical communication.
Benefits
- Silicon Valley's equity program (1-year cliff)
- Hybrid work policy, flexible work hours
- 3.9 million won for professional development, fitness, mental health, books, etc.
- Up to 3.6 million won per year for language lessons
- Monthly team building cost
- Partial support for commuting costs
- Free parking at the Seolleung office
- Group insurance support for employees, spouses, and children
- Medical checkup support (including MRI and genetic testing) for employee and one family member
- Seven additional paid holidays (Boost leave, Birthday leave, etc.)
- Unlimited snack bar
- 12-week paid parental leave support (for mothers and fathers)
- Support programs for congratulations and condolences