Data Engineer 9+ years Exp | chennai location

Company Description Qzensys Solutions is a trusted professional services partner specializing in IT staffing, consulting, software development, and technology solutions across modern platforms and tools. The company helps organizations build agile, future-ready teams by providing specialized talent and expertise in cutting-edge technologies. Qzensys Solutions focuses on quality, reliability, and client success to support digital transformation and maintain competitiveness in a rapidly changing technology landscape. In addition to staffing and consulting, the company delivers end-to-end software development services across multiple technology stacks and platforms, offering a comprehensive range of solutions for its clients.

On-site| Chennai Location Interested folks reach me directly 9703589293.

Role Description Assistant Manager - Data Engineer We are looking for an experienced Data Engineer to design, build, and maintain scalable data pipelines and infrastructure that power analytics, reporting, and machine learning initiatives across the organization. The ideal candidate has a strong foundation in data modelling, distributed systems, and cloud-based data platforms, with a track record of delivering reliable, high-performance data solutions.

Key Responsibilities • Design, build, and optimize scalable ETL/ELT pipelines to ingest, transform, and load data from diverse sources (databases, APIs, streaming platforms, third-party systems) • Develop and maintain data warehouse/data lake architectures, ensuring data quality, consistency, and reliability • Collaborate with data scientists, analysts, and product teams to understand data requirements and deliver well-structured, accessible datasets • Build and maintain batch and real-time streaming data pipelines using tools like Apache Spark, Kafka, or Airflow • Implement data quality checks, monitoring, and alerting to ensure pipeline reliability and data integrity • Optimize database and query performance for large-scale datasets • Design and maintain data models (conceptual, logical, physical) and schemas that support analytics and application needs • Work with cloud platforms (AWS/Azure/GCP) to manage data infrastructure, storage, and compute resources • Implement and enforce data governance, security, and compliance best practices • Participate in code reviews, CI/CD pipeline development, and infrastructure-as-code practices • Document data pipelines, architecture, and processes for team knowledge sharing • Troubleshoot and resolve production data pipeline issues in a timely manner

Required Skills & Qualifications • Bachelor's degree in Computer Science, Engineering, or a related field • 8+ years of hands-on experience as a Data Engineer or in a similar role • Strong programming skills in Python and/or Scala; solid SQL expertise • Experience with ETL/ELT tools and orchestration frameworks (Apache Airflow, dbt, Luigi, or similar) • Hands-on experience with big data technologies (Apache Spark, Hadoop, Kafka) • Proficiency with relational databases (PostgreSQL, MySQL, SQL Server) and NoSQL databases (MongoDB, Cassandra, DynamoDB) • Experience working with cloud data platforms and services (AWS Redshift/Glue/S3, Azure Data Factory/Synapse, GCP BigQuery/Dataflow) • Solid understanding of data modeling concepts — entity relationships, cardinality, normalization, and dimensional modeling (star/snowflake schemas) • Experience with data warehousing solutions (Snowflake, Redshift, BigQuery, Databricks) • Familiarity with version control (Git) and CI/CD practices • Understanding of data governance, security, and privacy best practices (GDPR, data masking, accesscontrols) • Strong problem-solving skills and ability to work with large, complex datasets