# Senior Data Scientist (LLM)

> Data Wow Co., Ltd. · Pathum Wan, Thailand (Hybrid) · Full-time · Posted 2026-03-31

**Salary:** unknown currency 600,000–1,200,000

**Workplace:** hybrid

**Department:** Data Science

## Description

Job Summary:

-   Lead and contribute to end-to-end solutions powered by Large Language Models (LLMs).
-   Drive innovation and practical applications of LLMs to solve complex business problems.
-   Collaborate across teams to deliver scalable, value-driven LLM systems.

**Responsibilities**

-   LLM-Centric Solution Development:

-   Design, fine-tune, and implement cutting-edge LLMs for business use cases such as content generation, intelligent assistants, semantic search, or knowledge retrieval.
-   Evaluate and select appropriate foundation models (e.g., GPT, LLaMA, Mistral) and tailor them to organization-specific domains.
-   Build modular, scalable pipelines for LLM applications, including prompt engineering, inference optimization, and feedback loops.

-   Collaborative Project Contribution:

-   Work closely with Machine Learning Engineer, Data Engineer, DevOps Engineer, Developers and stakeholders to define project goals and align model capabilities with business outcomes.
-   Translate high-level requirements into actionable LLM development plans with measurable KPIs.
-   Support the lifecycle of LLM initiatives from experimentation to deployment.

-   Technical Excellence:

-   Stay current with the rapidly evolving LLM landscape, including open-source models, toolkits (e.g., Hugging Face, LangChain), and retrieval-augmented generation (RAG) frameworks.
-   Optimize cost, performance, and latency for LLM inference at scale.
-   Ensure reproducibility, quality, and efficiency across LLM workflows.

-   Effective Communication & Collaboration:

-   Present technical findings and solution designs clearly to both technical and non-technical audiences.
-   Share knowledge and contribute to internal LLM best practices and education.
-   Offer technical support and informal mentoring on LLM topics across teams.

## Requirements

-   Bachelor’s or Master’s in Computer Science, Artificial Intelligence, Data Science, or a related field.

-   3+ years of experience in machine learning or data science, including at least 1 year focused on LLM development or deployment.
-   Proficient in Python and frameworks relevant to LLM development (e.g., PyTorch, Hugging Face Transformers, LangChain, OpenAI API).
-   Practical experience in fine-tuning, evaluating, and integrating LLMs into applications at scale.
-   Familiarity with prompt engineering, vector databases (e.g., FAISS), and RAG or LLMOps pipelines.
-   Ability to act as a technical consultant for clients, translating complex AI concepts into actionable business insights and managing technical expectations effectively.
-   Strong interpersonal skills to bridge the gap between technical delivery and client needs.
-   Strong analytical and problem-solving skills with the ability to work independently or in cross-functional teams.
-   Proficient in English (spoken and written); Japanese skills are a plus but not required.

## Benefits

-   Hybrid work
-   Health insurance
-   Annual health check
-   Laptop and other equipments
-   Education allowance
-   Performance bonus

## Apply

[Apply at Data Wow Co., Ltd.](https://apply.workable.com/datawow/j/C0194DC3D6/apply)

---
Powered by [Workable](https://www.workable.com)