Data Scientist

2 weeks ago

Chennai Tamil Nadu, India Recode Solutions Full time

**Job Summary**:
We are looking for a hands-on **Data Scientist with deep expertise in NLP and Generative AI** to help build and refine the intelligence behind our agentic AI systems. You will be responsible for **fine-tuning**, **prompt engineering**, and **evaluating LLMs** that power our digital workers across real-world workflows.

**Key Responsibilities**:

- Fine-tune and evaluate LLMs (e.g., Mistral, LLaMA, Qwen) using frameworks like **Unsloth**, HuggingFace, and DeepSpeed
- Develop high-quality **prompts and RAG pipelines** for few-shot and zero-shot performance
- Analyze and curate domain-specific text datasets for training and evaluation
- Conduct performance and safety evaluation of fine-tuned models
- Collaborate with engineering teams to integrate models into **agentic workflows**
- Stay up to date with the latest in open-source LLMs and GenAI tools, and rapidly prototype experiments**Requirements**:

- 3+ years of experience in **Natural Language Processing (NLP)** and **machine learning** applied to text
- Strong coding skills in python
- Hands-on experience fine-tuning **LLMs** (e.g., LLaMA, Mistral, Falcon, Qwen) using frameworks like **Unsloth**, **HuggingFace Transformers**, **PEFT**, **LoRA**, **QLoRA**, **bitsandbytes**
- Proficient in **PyTorch** (preferred) or **TensorFlow**, with experience in writing custom training/evaluation loops
- Experience in **dataset preparation**, tokenization (e.g., Tokenizer, tokenizers), and formatting for instruction tuning (ChatML, Alpaca, ShareGPT formats)
- Familiarity with **retrieval-augmented generation (RAG)** using **FAISS**, **Chroma**, **Weaviate**, or **Qdrant**
- Strong knowledge of **prompt engineering**, **few-shot/zero-shot learning**, **chain-of-thought prompting**, and **function-calling patterns**
- Exposure to **agentic AI frameworks** like **CrewAI**, **Phidata**, **LangChain**, **LlamaIndex**, or **AutoGen**
- Experience with **GPU-accelerated training/inference** and libraries like **DeepSpeed**, **Accelerate**, **Flash Attention**, **Transformers v2**, etc.
Ability to work with open-source checkpoints and formats (e.g., **safetensors**, **GGUF**, **HF Hub**, **GPTQ**, **ExLlama**)
- Comfortable with **containerized environments** (Docker) and scripting for **training pipelines**, **data curation**, or **evaluation workflows**

**Nice to Haves**:

- Experience in Linux (Ubuntu)
- Terminal/Bash Scripting

Date Opened

07/08/2025

Job Type

Full time

Years of Experience

3 - 6 Years

Domain

Chemicals

City

Chennai

State/Province

Tamil Nadu

Country

India

Zip/Postal Code

600001

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