Role name - Python Developer

Work location: Chennai

Level: L3 (5-7 years)

Notice period - Immediate/ 30 Days
Must Have : Python, PySpark, Advanced SQL, ETL.

Direct Responsibilities

- Design & develop robust ingestion, transformation, and enrichment pipelines with Python, PySpark, and SQL.
- Keep up to date with latest technologies and trends and provide input, expertise and recommendations.
- Write and optimize complex SQL queries, analytical UDFs, and window functions for data aggregation and reporting.
- Collaborate with CEFS data architects, data scientists, and business analysts to translate functional requirements into technical specifications.
- Unit-test, integrate-test, and review code.
- Maintain CI/CD pipelines (Git, Jenkins, Docker) for automated build, test, and deployment of jobs.
- Monitor production workloads and troubleshoot performance bottlenecks, memory issues, and job failures.
- Document data lineage, pipeline design, and operational run-books in Confluence/SharePoint.

Contributing Responsibilities

Contribute towards innovation (e.g. AI/ML); suggest new technical practices for efficiency improvement.

- Participate in Agile ceremonies (sprint planning, daily standups, retrospectives) and help groom the backlogs.
- Mentor junior engineers and champion best practices in Python coding, Spark optimization, and data-engineering patterns.
- Evaluate emerging technologies and deliver proof-of-concepts for CEFS.

Technical & Behavioral Competencies

- Resourceful to quickly understand complexities involved and provide the way forward.




- Good experience in technical analysis of n-tier applications with multiple integrations using object oriented, APIs & Microservices approaches.
- Strong knowledge about design patterns and development principles.
- Inclination and prior experience of working across SQL, Python and ETL.
- Solid Hands-on experience - Python (NumPy, pandas, Python Frameworks, Restful APIs, MS-SQL or Oracle.
- PySpark - DataFrames, Spark SQL, Structured Streaming, performance tuning (partitioning, caching, broadcast joins).
- Advanced SQL complex queries, stored procedures, query optimization.
- Good Knowledge and experience to use Python packages such as Pandas, NumPy, etc. for cleaning up of Data, Data Wrangling, Analysis of Data and Visualization of Data.
- Good experience in development and maintenance of code/scripts in both functional and technical specifications of all applications component, bug fixing and production support.
- Good knowledge on Linux/Unix environment (basic commands, shell scripting, etc.), testing phases, documentation and new framework.
- Some experience of working with build tools like Maven & DevOps tools like Bitbucket, Jenkins.
- Knowledge of Agile, Scrum, DevOps.
- Development experience in Data Engineering environment.
- Ability & willingness to learn & work on diverse technologies (languages, frameworks, and tools).
- Self-motivated, good interpersonal skills and inclination to constantly upgrade new technologies and frameworks.
- Good communication and co-ordination skills.

Specific Qualifications:

- Good to have knowledge of front-end technologies preferably Flask.

Skills Referential (Required knowledge, skills and abilities)

Technical Skills:

- Python
- Pyspark
- SQL
- ETL

📌 Python Developer (Chennai)
🏢 Hiring Squad
📍 Chennai