at Sun* Inc.
Lead AI Engineer (English Fluency)
WHAT WE DO:
At Sun Asterisk, we are committed to building cutting-edge AI solutions that empower businesses and transform industries.
As an AI Engineer Lead, you will:
- Design, estimate and implement agentic AI workflows, integrating LLMs with APIs, tools, and external systems using frameworks such as LangChain, LlamaIndex, or Semantic Kernel
- Collaborate with clients and business teams to clarify requirements, provide technical consultation, and perform estimations to design feasible AI solutions aligned with business and technical objectives
- Collaborate with engineering teams to manage data pipelines including data ingestion, preparation, and labeling when applicable and implement, fine-tune, optimize, and deploy ML/LLM models into production
- Drive AI architecture decisions, ensuring scalability, reliability, and performance in production environments
- Establish measurable standards of AI output quality (accuracy, consistency, factuality, relevance) and ensure delivery meets or exceeds the performance metrics committed to clients
- Implement model validation and evaluation frameworks, including automated testing, human-in-the-loop feedback, and continuous performance monitoring to guarantee predictable outcomes
- Stay current with emerging AI, LLM, and agentic technologies, evaluating their applicability to business use cases
- Mentor and inspire a high-performing AI engineering team, fostering innovation, responsibility, and excellence
- Oversee MLOps and CI/CD pipelines to enable stable releases and rapid iteration cycles
WHO YOU ARE:
#Experience Requirements
Mandatory Skills:
- 5+ years of experience as an AI Engineer, including at least 2 years in a lead or architect role
- Hands-on experience with Generative AI (e.g., RAG, Vector Databases, LLM Fine-tuning, Stable Diffusion, Agentic AI Systems)
- Skilled in one or more technical domains: Computer Vision, NLP, Machine Learning, Audio Processing, Deep Learning
- Strong Python skills with solid software engineering fundamentals and practical experience in deploying and maintaining ML/AI systems in cloud environments (AWS / GCP / Azure)
- Solid understanding of MLOps workflows (CI/CD for ML, model versioning, retraining, monitoring)
- Familiar with data engineering concepts
- Proven experience in bidding, solution consulting, or pre-sales for AI-related projects.
Desired Skills:
- Experience in model optimization for large-scale or LLM-based applications
- Experience in Agile leadership, mentoring engineers, and driving product excellence.
#Skill requirements
- Excellent English communication skills, both written and verbal
- Strong client-facing consulting and stakeholder communication abilities that can bridge technical and business discussions
- Outstanding teamwork and collaboration skills
- Proven ability to prioritize tasks and allocate work effectively in dynamic environments
- Sharp critical thinking and logical reasoning
- Strong problem-solving and decision-making capability.
#Attitude Requirements
- Customer-centric mindset with a focus on delivering business value
- High adaptability and comfort with change or ambiguity
- Continuous learning attitude, with curiosity toward new AI technologies and practices
- Ownership-driven, proactive, and results-oriented in execution
BENEFITS AND PERKS:
Professional, open-minded, and creative environment:
- Work with colleagues who embrace ideas to change the society
- Respect different perspectives within a team
- Strong learning culture that promotes individual development
- The culture of taking risks to experience and thrive
Focus on individual development
- Be consulted, accompanied, and supported in career development with the career path system (developing in expertise or management direction) that has been studied and tested for many years.
- Be oriented for individual, group, and organizational goals
- Be empowered
- Be supported to define a 3-month or 6-month goal (Goal Define Support)
- Get access to company Learning Hub online library with various courses provided by Udemy, LinkedIn,…
Special care for employees
- Salary: Negotiable + competitive allowance (lunch, living allowance, beauty care, Japanese and IT certificates, etc.)
- 13th-month salary bonus
- Performance review: Twice/a year
- Hybrid working policy; flexible check-in, check-out
- Comprehensive health insurance Sun* Care
- Seniority Allowance
- Women care allowance: Women’s physiological leave: 2.5 hours/month; Postpartum leave for female employees with under 1-year-old children: 1 hour/day
- Policies supporting learning activities, knowledge sharing, and cultural exchange (Technology Seminar – Tech Expert, Club: Reading, Japanese, Music Club, …)
- Annual company trip and quarterly team-building activities
Note: By applying for this position, you consent to Sun* collecting, storing, and processing your personal data for current and future recruitment purposes. Your data may be shared with relevant parties involved in the recruitment process and will be retained indefinitely until you submit an official written request for its deletion.
