ETL Developer

Senior Big Data EngineerPrimary skills: PySpark, Apache Kafka, Hadoop Ecosystem, Hive, Databricks Lakehouse Architecture, Delta Lake, Bronze/Silver/Gold Data Modeling, Big Data ETL Pipeline Development, SQL, Real-time Data Ingestion Frameworks, Data Governance & Cataloging, CI/CD Tools – Git, Jenkins, Bitbucket, Workflow Orchestration, and Cloud & On-Prem Big Data Platforms.Experience: Minimum 10+ yearsRoles & Responsibilities Seeking a Senior Big Data Engineer with 10–13 years of experience specializing in Hadoop, PySpark, Kafka, Hive, and strong experience designing data solutions for large-scale financial systems. In addition, the candidate must possess advanced expertise in Databricks Lakehouse architecture, particularly around Bronze/Silver/Gold layer data modeling, Delta Lake optimizations, and building reliable, scalable pipelines for regulatory, risk, trading, and analytics workloads. This role focuses on delivering highly performant, well-governed data platforms that support the bank's mission-critical global markets functions.Key Responsibilities:Big Data Platform EngineeringDesign, develop, and optimize PySpark-based ETL pipelines running on on-prem Hadoop clusters and cloud environments.Build high-volume ingestion frameworks using Kafka for real-time and near-real-time trading and market data.Develop, tune, and manage Hadoop ecosystem components—HDFS, YARN, MapReduce, Tez, Oozie/Airflow.Build high-performance, optimized Hive data models for regulatory reporting, trade lifecycle, and market risk processing.Databricks Lakehouse & Delta FrameworkArchitect and implement Bronze/Silver/Gold layer modeling patterns within the Databricks Lakehouse.Apply Delta Lake best practices including: optimized file management, Z-Ordering, Delta Change Data Feed (CDF), schema evolution & enforcement, ACID transaction handling.Build reusable frameworks for ingestion, cleansing, transformation, and consumption of data across Lakehouse layers.Enable governance, lineage, and auditability using Unity Catalog or equivalent cataloging tools.Collaboration, Leadership & DeliveryCollaborate closely with quants, product owners, architects, risk tech, and business users.Participate in agile ceremonies — sprint planning, refinement, design reviews.Mentor junior engineers and contribute to building strong engineering practices across tech teams.Required Skills & Experience10–13 years of hands-on experience in Big Data engineering.Expert skills in:PySpark — dataframe optimizations, partitioning, broadcast strategies, distributed computing.Kafka — producer/consumer design, schema registry, streaming ETLs.Hadoop ecosystem — HDFS, YARN, MapReduce/Tez, Oozie/Airflow.Hive — advanced query tuning, TEZ optimization, partition/bucket management.Extensive hands-on experience with Databricks Lakehouse, including:Bronze/Silver/Gold layer modelingDelta Lake optimizationsData quality frameworks on LakehouseStructured & unstructured data handlingExperience in Global Markets, Risk, Treasury, Trade Surveillance, or Regulatory Reporting.Strong SQL knowledge with experience working on massive datasets (TB/PB scale).Experience with CI/CD practices — Git, Jenkins, Bitbucket, build pipelines.TCS Employee Benefits Summary: Discretionary Annual Incentive. Comprehensive Medical Coverage: Medical & Health, Dental & Vision, Disability Planning & Insurance, Pet Insurance Plans. Family Support: Maternal & Parental Leaves. Insurance Options: Auto & Home Insurance, Identity Theft Protection. Convenience & Professional Growth: Commuter Benefits & Certification & Training Reimbursement. Time Off: Vacation, Time Off, Sick Leave & Holidays. Legal & Financial Assistance: Legal Assistance, 401K Plan, Performance Bonus, College Fund, Student Loan Refinancing. Salary Range: $80,000- 140,000 a yearLocation: Cleveland, OHJob Function: TECHNOLOGYRole: DeveloperDesired Skills: Hadoop | Kafka | HiveSalary Range: $80,000-$140,000 a yearDesired Candidate Profile Qualifications: BACHELOR OF COMPUTER SCIENCE