Software Engineer 1, Data Science

Rakuten Symphony; Bengaluru; On-site; INR 1,800,000 - 3,200,000; Full time

Benefits offered by this job

Cutting-edge AI/ML

Ownership of projects

Collaborative culture

Job summary

Rakuten Symphony in Bengaluru is seeking a Data Scientist (3-9 yrs) to design and deploy scalable ML/AI solutions. You will own use cases from ideation to production, with hands-on Python and PySpark, focusing on Generative AI and LLMs.

You will build NLP, time-series forecasting, and production-grade ETL pipelines, collaborating across functions and monitoring models with Docker, MLflow, and FastAPI. The role offers a challenging, collaborative environment and opportunities to work on

Qualifications

• Bachelor’s or Master’s degree in CS/DS/Statistics/Engineering or related field.
• 3–9 years of experience in Data Science or ML roles.
• Strong knowledge of Python, PySpark, SQL, Flask, Streamlit for large-scale data processing and production-level development.
• Experience creating end-to-end ETL pipelines and debugging complex data issues.

Responsibilities

• Design, develop, and deploy scalable ML, DL, and NLP models for real-world problems.
• Build and operationalize GenAI and LLM-based solutions using Langchain, LangGraph, CrewAI, and others.
• End-to-end project execution from problem understanding to deployment and monitoring.
• Develop production-grade code using Python and PySpark.
• Apply time-series forecasting for business planning and operations.
• Collaborate with cross-functional teams and communicate insights clearly.
• Deploy ML models in production and monitor performance.

Skills

Python

PySpark

SQL

Flask

NLP

ML/DL frameworks

Langchain

LLMs

Docker

MLflow

Education

Bachelor's or Master's in Computer Science or related

Tools

Docker

MLflow

FastAPI

Kubernetes

LangGraph

CrewAI

Job description

Job Description:

Job Title: Data Scientist (3-9 Yrs)

Location: Bangalore

Reports To: The Data Scientist will report to the Lead Data Scientist

Why should you choose us?

Rakuten Symphony is a Rakuten Group company, that provides global B2B services for the mobile telco industry and enables next-generation, cloud-based, international mobile services. Building on the technology Rakuten used to launch Japan’s newest mobile network, we are taking our mobile offering global. To support our ambitions to provide an innovative cloud-native telco platform for our customers, Rakuten Symphony is looking to recruit and develop top talent from around the globe. We are looking for individuals to join our team across all functional areas of our business – from sales to engineering, support functions to product development. Let’s build the future of mobile telecommunications together!

What Do We Expect From You

We are seeking a highly skilled and experienced Data Scientist/Senior Data Scientist to join our dynamic team. In this role, you will design and build scalable machine learning and AI solutions, taking complete ownership of use cases from ideation through production deployment and monitoring. This position requires strong hands‑on expertise in Python and PySpark, as well as a deep understanding of modern AI/ML techniques including Generative AI and Large Language Models.

Roles & Responsibilities:

• Design, develop, and deploy scalable machine learning, deep learning, and NLP models for real‑world business problems.
• Build and operationalize GenAI and LLM‑based solutions using frameworks like Langchain, LangGraph, CrewAI, and others
• Should have an understanding on how to incorporate MCP and A2A in the multi agentic framework.
• Conduct end‑to‑end project execution, including problem understanding, data analysis, feature engineering, modeling, evaluation, and deployment.
• Develop robust, production‑ready code using Python and PySpark.
• Apply time series forecasting methods to build predictive systems for business planning and operations.
• Collaborate with cross‑functional teams to understand requirements, align solutions, and communicate insights effectively.
• Deploy ML models in production environments and ensure their ongoing monitoring, performance tracking, and tuning.
• Own and manage use cases throughout their lifecycle, ensuring they deliver measurable value.
• Communicate results clearly to both technical and non‑technical stakeholders.

Skills and Qualifications:

Bachelor’s or Master’s degree in Computer Science, Data Science, Statistics, Engineering, or a related field.

• 3 to 9 years of experience in Data Science or Machine Learning roles.
• Strong Knowledge of Python, PySpark, SQL, Flask, Streamlet for large‑scale data processing and production‑level development.
• Should be able to create end to end ETL pipelines to feed the data to the deployed modules with excellent debugging skills to identify the potential issues whenever it breaks.
• Familiarity with data frameworks such as Hadoop, databases (PostgreSQL, MongoDB, YugaByte), understanding of cloud‑native deployments and infrastructure.
• Strong math / analytical skills (e.g. statistics, algebra)
• Proficient in ML/DL frameworks (e.g., scikit‑learn, TensorFlow, PyTorch).
• Experience and deep knowledge in Generative AI, LLMs, Langchain, LangGraph, MCP, and A2A
• Strong experience in NLP, Deep Learning, and Time Series Forecasting techniques.
• Knowledge of ML model deployment tools and practices (e.g., Docker, MLflow, FastAPI).
• Hands‑on experience in model performance monitoring and optimization in production.
• Logical problem‑solving skills and a structured approach to solution design.
• Strong verbal and written communication skills with the ability to work directly with business users.

Preferred Qualifications

• Experience with cloud platforms (e.g., AWS, GCP, Azure) for ML deployment.
• Familiarity with CI/CD pipelines for ML models.
• Exposure to vector databases, embeddings, and RAG‑based architectures.
• Must be aware of maintaining GIT repository as per industry standards

What We Offer:

• Opportunity to work on cutting‑edge AI/ML, Gen AI technologies.
• Ownership of impactful projects from end to end.
• Collaborative and intellectually stimulating environment.

Rakuten Shugi Principles:

• Our worldwide practices describe specific behaviours that make Rakuten unique and united across the world. We expect Rakuten employees to model these 5 Shugi Principles of Success.
• Always improve, always advance. Only be satisfied with complete success - Kaizen.
• Be passionately professional. Take an uncompromising approach to your work and be determined to be the best.
• Hypothesize - Practice - Validate - Shikumika. Use the Rakuten Cycle to success in unknown territory.
• Maximize Customer Satisfaction. The greatest satisfaction for workers in a service industry is to see their customers smile.
• Speed!! Speed!! Speed!! Always be conscious of time. Take charge, set clear goals, and engage your team.