MULKI SAMI
Solution Architect | Senior Data Engineer
Bengaluru
Summary
Databricks-focused Architect/Senior Data Engineer with 12+ years of experience modernizing enterprise data platforms. Strong hands-on expertise across Azure Databricks, Delta Lake, Unity Catalog, Lakehouse and Medallion Architecture, PySpark, Spark performance tuning, and large-scale Talend-to-Databricks migration. Proven record of delivering cost optimization, GDPR-aligned data protection, AI adoption, platform automation and technical leadership.
Overview
4
4
Certifications
12
12
years of professional experience
Work History
Architect | Senior Data Engineer
Mercedes-Benz Research & Development India
03.2022 - Current
- Current Architect and technical owner for enterprise data platform transformation, driving architecture, engineering standards, delivery and stakeholder alignment
- Led migration of 450+ ETL jobs and data from Talend to Azure Databricks with zero critical business disruption
- Established the enterprise Lakehouse architecture using Landing, Bronze, Silver and Gold layers with Delta Lake and Unity Catalog
- Led a cross-functional team of 20 engineers, owning architecture decisions and delivery outcomes across the platform
- Implemented GDPR-aligned data protection capabilities, including RTBF processing, anonymisation and governance patterns for sensitive data across the Lakehouse
- Drove a 40% reduction in infrastructure costs through job rationalization, workload optimization and an improved cluster strategy
- Improved query and pipeline performance by 70-80% through Spark tuning and Delta optimizations, with selected processing runtimes reduced by up to 90%
- Built reusable ingestion frameworks for structured, semi-structured and unstructured data, integrating Salesforce, Genesys and REST-based enterprise systems
- Delivered high-value engineering accelerators, including automated Databricks failure-to-Service incident creation, ETL monitoring, database-space monitoring, dependency tracing and automated job triggering
Senior ETL Developer
Capgemini
05.2019 - 03.2022
- Led a team of 6 ETL developers delivering enterprise data integration programmes
- Designed large-scale ETL pipelines using Talend, Hive, HDFS, and Azure Data Factory
- Built reusable ETL frameworks, improving development velocity and standardization
- Acted as technical SME for assigned data domains and owned end-to-end delivery
- Delivered mission-critical solutions for global clients, including Hewlett-Packard
- Established CI/CD engineering practices using Git, GitHub Actions and Databricks deployment capabilities to improve release consistency and reduce manual effort
- Drove AI adoption across the project through AI-assisted development, testing, setup and user-story creation, together with Databricks AI/Genie capabilities and usage-cost guardrails
- Built and mentored the engineering team through hiring, onboarding, technical training and knowledge transfer, bringing new engineers up to speed for independent delivery
- Improved platform reliability and operational maturity through proactive monitoring, automation, incident management and standardized engineering practices
- Led cross-functional stakeholder engagement, translating business requirements into scalable technical solutions and representing the platform in architecture, vendor and capacity-planning discussions
- Presented the platform modernization journey at Databricks Data Day to a global audience
ETL Developer Mainframe Support Engineer
Tata Consultancy Services
05.2014 - 05.2019
- Drove large-scale ETL modernization for Western Union, leading migration from IBM DataStage to Talend
- Designed and developed Talend jobs integrating AS400, Oracle, DB2, MSSQL and flat files
- Served as L2/L3 support engineer for 24/7 mission-critical systems for State Farm Insurance, handling incidents and root-cause analysis
- Performed incident management, root-cause analysis and permanent fixes
- Worked on COBOL, PL/I, JCL, DB2 and IMS-based mainframe systems
Education
B.Tech - Electronics & Communication Engineering
G. Pulla Reddy College of Engineering And Technology
Kurnool, AP, India05-2013
Skills
- Azure Databricks
- Delta Lake
- Unity Catalog
- Lakehouse Architecture
- Medallion Architecture
- PySpark
- SQL
- Performance Tuning
- Talend
- Azure Data Factory
- Salesforce
- Genesys APIs
- REST APIs
- Data Modeling
- Data Governance
- Data Dictionary
- GDPR
Accomplishments
- Successful ETL Migration - Migrated 450+ ETL jobs, maintaining zero disruptions.
- GDPR & Data Protection - Implemented GDPR-aligned data protection capabilities, including RTBF processing, data anonymization and governance patterns for sensitive data across the Lakehouse.
- Cost Optimization Success - Reduced infrastructure costs by 40% and storage cost by 65% through optimization.
- Performance Enhancement - Improved query performance by 70% to 80% with tuning.
- Effective Team Leadership - Led cross-functional team of 20+ engineers to success.
Certification
Databricks Certified Data Engineer Associate
Timeline
Architect | Senior Data Engineer
Mercedes-Benz Research & Development India
03.2022 - Current
Senior ETL Developer
Capgemini
05.2019 - 03.2022
ETL Developer Mainframe Support Engineer
Tata Consultancy Services
05.2014 - 05.2019
B.Tech - Electronics & Communication Engineering
G. Pulla Reddy College of Engineering And Technology