Big Data Engineer

About the role

Citi is hiring a Big Data Engineer on a trainee basis for its Pune office. The position is hybrid, welcomes fresh graduates, and focuses on building and optimizing large‑scale data pipelines using Hadoop, Spark, Python and related technologies.

Responsibilities

• Analyse business data and translate requirements into scalable data solutions.
• Refactor legacy or undocumented code to improve performance and adhere to best‑practice standards.
• Develop and maintain ETL processes for both batch and real‑time workloads.
• Work with extensive datasets and data warehouses, ensuring accurate data ingestion and preprocessing.
• Apply data‑governance, security and regulatory guidelines throughout the data lifecycle.
• Collaborate with cross‑functional teams and present findings in a clear, concise manner.

Eligibility

• Master’s or Engineering degree (or equivalent) with 0‑2 years of experience in big‑data ecosystems.
• Hands‑on experience in Unix scripting, Python, Scala and strong SQL skills.
• Ability to handle unstructured codebases and redesign them for efficiency.
• Familiarity with machine‑learning concepts and cloud‑based data platforms.
• Willingness to work in onsite or offsite delivery models.

Skills

• Hadoop
• Spark (Python/Scala)
• Python
• Scala
• SQL
• Unix scripting
• Data preprocessing
• ETL tools
• Big‑data processing
• Problem solving

Benefits