Coffeebeans.io - L2 Data Scientist - Python

About CoffeeBeans Consulting :

CoffeeBeans is a tech-driven software consulting company that helps businesses solve complex problems using modern data, AI, and engineering solutions. We blend deep technical expertise with a product mindset to build scalable, intelligent, and high-impact solutions across industries. Our data science team works on end-to-end deliveryfrom exploration and modeling to GenAI application development and deployment.

Location : Bangalore

Work mode : WFO 5 days

Role Overview :

As an L2 Data Scientist, you will play a hands-on role in delivering production-grade ML and GenAI-powered applications. You are expected to independently take ownership of data science components within client projects, contribute to solutioning and design, and mentor junior team members. You will work across a range of use cases such as personalization, fraud detection, intelligent automation, RAG pipelines, and LLM-based assistants.

This role is ideal for someone who has proven experience in both traditional ML and an emerging understanding of LLMs and generative AI applications.

Key Responsibilities :

- Own and deliver ML model development, tuning, and evaluation for client-facing projects.

- Lead exploratory data analysis, data preprocessing, and feature engineering with minimal supervision.

- Build models using appropriate ML techniques (classification, regression, clustering, recommendation) and ensure performance meets business expectations.

- Contribute to experimentation frameworks and model reproducibility best practices.

- Design and prototype GenAI solutions using LLMs (e.g., OpenAI, Claude, Mistral, Llama).

- Build RAG pipelines, prompt templates, few-shot learning prompts, and evaluation mechanisms for GenAI systems.

- Integrate LLMs with APIs, vector databases (e.g., Pinecone, FAISS, Weaviate), and context providers.

- Contribute to benchmarking, safety, and cost-performance trade-offs in LLM app development.

- Collaborate with engineering teams to take models from experimentation to deployment (batch/real-time).

- Assist in building APIs and data pipelines needed for productionizing models.

- Contribute to technical documentation, explainability reports, and client presentations.

- Mentor junior data scientists and review code/model design.

- Stay current with advances in ML and GenAI to inform solution design and share knowledge internally.

- Participate in discovery and solutioning phases with clients alongside tech leads and PMs.

Required Skills & Qualifications :

- Bachelors or Masters degree in Computer Science, Data Science, Engineering, Statistics, or a related field.

- 4-6 years of hands-on experience in applied data science, including both ML model development and GenAI-based solutioning.

- Strong command over Python and ML libraries (scikit-learn, XGBoost, LightGBM, etc.).

- Experience working with LLM APIs (OpenAI, Cohere, Claude, etc.) and frameworks (LangChain, LlamaIndex, or similar).

- Hands-on experience with prompt engineering, RAG workflows, and evaluating LLM outputs.

- Proficiency in SQL and data wrangling tools (pandas, NumPy).

- Experience working with REST APIs, Git, and cloud environments (AWS/GCP).

Good-to-Have Skills :

- Experience with deploying models via FastAPI, Docker, or serverless platforms.

- Knowledge of MLOps tools (MLflow, DVC) and monitoring frameworks.

- Experience with embeddings, vector databases, and similarity search.

What You Can Expect at CoffeeBeans :

- Work on real-world AI/ML problems across verticals.

- Be part of a fast-moving team delivering end-to-end ML & GenAI apps.

- Collaborate with experienced engineers and PMs in a flat and open culture.

- Opportunities to lead, mentor, and influence tech direction.