Streamlit Developer/Junior Data Scientist

JD - Streamlit Developer / Jr. Data ScientistExperience : 2+ Years

Work Mode : On-site

Location : Bangalore

Job Summary :

We are looking for a Streamlit Developer / Jr. Data Scientist with strong experience in Python, SQL, Snowflake, and Streamlit to support the development and maintenance of internal business applications.

The role will focus on building multi-page Streamlit applications, developing interactive data components, writing and optimizing SQL queries against Snowflake, integrating data science model outputs into user-friendly applications, deploying applications across environments, and troubleshooting production issues.

Must-Have Skills :

• 2+ years of professional experience building data applications using Python.

• Strong hands-on experience with Streamlit and the ability to independently build and structure Streamlit applications.

• Strong SQL skills, including joins, window functions, and aggregations over large tables.

• Hands-on experience with Snowflake.

• Strong experience with the Python data stack, particularly pandas.

• Experience building multi-page Streamlit applications.

• Experience developing interactive data tables, editable inputs, pivot views, timeframe selectors, and metric cards.

• Understanding of Streamlit session state, caching, layout, and application performance.

• Experience deploying and migrating Streamlit applications across environments.

• Experience debugging production issues related to serialization, caching, session state, and performance.

• Experience with Git and standard code review practices.

• Ability to work independently from written requirements and effectively communicate when requirements need clarification.

Good-to-Have Skills :

• Experience with PySpark.

• Experience working with Databricks.

• Experience with e-commerce, retail, or CPG data.

• Experience demoing applications to non-technical business stakeholders.

• Experience working closely with Data Scientists to integrate model outputs into business applications.

Key Responsibilities :

• Build and maintain multi-page Streamlit applications used by internal business teams.

• Develop application pages, tables, filters, charts, and interactive calculators on top of Snowflake data.

• Write SQL queries against Snowflake to power application views and optimize queries for improved page performance.

• Build interactive components such as filterable data tables, editable inputs that trigger recalculation, pivot views, custom timeframe selectors, and metric cards.

• Work closely with Data Scientists to transform model outputs into intuitive and user-friendly applications for non-technical stakeholders.

• Deploy and migrate Streamlit applications across different environments.

• Debug and resolve production issues, including serialization errors, caching behavior, session state issues, and performance challenges with large result sets.

• Apply appropriate Streamlit session state and caching techniques to ensure reliable application behavior.

• Participate in Git-based development and standard code review processes.

• Work from written requirements with minimal supervision and proactively communicate any gaps or concerns in requirements.

• Support application enhancements and maintenance based on business user needs.

Qualification :

• Bachelor's degree in Computer Science, Information Technology, Data Science, Engineering, or a related discipline.

• Professional experience in Python-based data application development is required.