Software Engineer 1, Data Science

Rakuten Kobo Inc.; Bengaluru; On-site; INR 1,500,000 - 2,800,000; Full time

Job summary

Rakuten Symphony in Bengaluru is seeking a Data Scientist to design and deploy scalable ML/AI solutions, owning use cases from ideation to production. You will work with Python, PySpark, and GenAI tools to build and monitor models that drive business outcomes.

The role emphasizes cross‑functional collaboration, production‑grade code, and strong communication with business users. A strong foundation in ML/DL, NLP, and time-series forecasting is needed.

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, Streamlit for large-scale data processing and production-level development.
• Ability to create end to end ETL pipelines and debug potential issues.
• Familiarity with Hadoop, PostgreSQL, MongoDB, YugaByte and cloud-native deployments.
• Strong math / analytical skills (statistics, algebra).
• Proficient in ML/DL frameworks (scikit-learn, TensorFlow, PyTorch).
• Experience in Generative AI, LLMs, Langchain, LangGraph, MCP, and A2A.
• Strong experience in NLP, Deep Learning, and Time Series Forecasting.
• Knowledge of ML deployment tools (Docker, MLflow, FastAPI).
• Hands-on model monitoring and production optimization.
• Logical problem-solving and structured solution design.
• Strong verbal and written communication with business stakeholders.

Responsibilities

• Design, develop, and deploy scalable ML, DL, and NLP models for real-world problems.
• Build GenAI and LLM-based solutions using Langchain, LangGraph, CrewAI, and others.
• Incorporate MCP and A2A in a multi-agent framework.
• End-to-end project execution: problem understanding, data analysis, feature engineering, modeling, evaluation, deployment.
• Develop robust production-grade code using Python and PySpark.
• Apply time series forecasting for business planning and operations.
• Collaborate with cross-functional teams and communicate insights effectively.
• Deploy models in production with monitoring, performance tracking, and tuning.
• Own use cases through their lifecycle delivering measurable value.
• Communicate results clearly to technical and non-technical stakeholders.

Skills

Python

PySpark

SQL

Flask

Streamlit

ETL pipelines

Hadoop

PostgreSQL

MongoDB

YugaByte

Statistics

scikit-learn

TensorFlow

PyTorch

Generative AI

LLMs

Langchain

LangGraph

MCP

A2A

NLP

Time Series Forecasting

Docker

MLflow

FastAPI

Model Monitoring

Communication

Education

Bachelor’s or Master’s degree in Computer Science, Data Science, Statistics, Engineering

Tools

Langchain

LangGraph

CrewAI

Docker

MLflow

FastAPI

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.

Rakuten Symphony is reimagining telecom, changing supply chain norms and disrupting outmoded thinking that threatens the industry’s pursuit of rapid innovation and growth. 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!

For more information, visit: https://symphony.rakuten.com