Md Sajjadur Rahman
Normal,IL
Summary
Dynamic and results-oriented Data Engineer with extensive experience in orchestrating, deploying, maintaining, and scaling both cloud and on-premises infrastructure. Skilled in big data and platform data management, including relational and NoSQL databases, distributed and converged systems. With a passion for leveraging cutting-edge technologies and a strong focus on data quality and performance, I excel in delivering data-driven insights that empower organizations to make informed decisions and drive business growth.
Overview
19
19
years of professional experience
1
1
Certification
Work History
Data Engineer
Illinois State University
Normal, IL
06.2020 - Current
- Designed, developed, and implemented data models, database designs, data access, and table maintenance codes.
- Implemented ETL processes to streamline data acquisition, leading to a 30% increase in efficiency.
- Optimized SQL scripts, which reduced runtime by 25%.
- Developed Python scripts for extracting data from web services API's and loading into databases.
- Analyzed user requirements, designed, and developed ETL processes to load enterprise data into the Data Warehouse.
- Increased operational efficiency by 200% by automating data quality checks and email nudging through designing script automation and developing internal utility packages in Python and R.
- Implemented robust data management practices, including backup, retention, and recovery strategies to ensure data integrity and availability.
Data Acquisition Analyst
Rutgers University, Dept. of Psychiatry
Newark, NJ
07.2019 - 06.2020
- Designed and developed data acquisition applications for data management, warehousing, and analytics solutions.
- Designed and architected multiple reliable data pipelines, that includes stages like Data Ingestion, Data Transformation and Data storage.
- Designed and implemented quality control procedures for diverse data sets sourced from multiple systems.
- Managed data integrity and consistency through rigorous quality control measures, ensuring data accuracy and reliability.
- Developed data access APIs to facilitate seamless data retrieval and manipulation using Python, Informatica PowerCenter.
- Documented procedures for performing tasks such as data collection and manipulation.
Big Data Architect
University of Connecticut, School of Pharmacy
Hartford, CT
09.2017 - 06.2019
- Led the design and implementation of data infrastructure systems, including data warehouses and data lakes, utilizing technologies such as Hortonworks Hadoop eco system in Azure cloud ,Apache Nifi, ADF, Azure Data lake gen2, SQl Server.
- Designed a system that allows data ingestion from multiple sources, such as web APIs, databases, and files.
- Orchestrated the deployment and maintenance of cloud-based infrastructure, optimizing performance and scalability for handling large volumes of data.
- Designed and implemented data collection frameworks for both structured and unstructured data sources, enabling efficient and scalable data acquisition processes using both SQL and NoSQL DBs.
- Collaborated with cross-functional teams to develop and deploy solutions that transformed platforms to deliver data-driven insights and drive business value.
Data Engineer
Marlabs Inc.
Piscataway, NJ
04.2017 - 08.2017
- Developed and managed enterprise-wide data analytics environments.
- Managed the full life cycle of Data Lakehouse to ensure efficient data storage, saving the company 60% in costs.
- Created and maintained data pipeline architecture for both batch and real-time business metrics.
- Collaborated on several data pipeline projects, decreasing the data collection and reporting time by 30%.
Manager, Enterprise Data Analytics
Robi Axiata Ltd.
Dhaka, Bangladesh
07.2010 - 08.2014
- Developed and implemented strategies to support data projects, increasing customer satisfaction and loyalty.
- Developed data extract script with Python, Unix ShellScripts and Rest APIs.
- Created, implemented template and maintained documentation defining best practices and increased productivity by 20%.
- Functioned as a seasoned professional with strong skills in planning, organizing, and completing data requests and reporting projects.
Software Developer
Dohatec New Media
Dhaka, Bangladesh
02.2005 - 06.2010
- Developed programs to automate processes and improve user experience.
- Created applications using HTML, CSS, JavaScript, and other programming languages.
- Provided technical support for both upstream and downstream users.
Education
Master of Science - Information Technology Project Management
University of Bridgeport
Bridgeport, CT05-2016
Bachelor of Science - Computer Engineering
Shahjalal University of Science And Technology
Sylhet, Bangladesh12-2004
Skills
- Coding: Python, SQL, R, HTML, CSS Java, NoSQL
- Database: Oracle, SQL Server, PostgreSQL, MySQL
- NoSQL: MongoDB, Apache Cassandra
- BigData: Hadoop, HDFS, Hive, Presto, Flume, Oozie, HBase
- ETL: Informatica PowerCenter, Apache Nifi, Apache Airflow, Azure Data Factory, Sqoop
- Visualization: Power BI, Tableau, Apache Superset, Apache Zeppelin
- Cloud Technology: Microsoft Azure, AWS
- DevOps: Git, Bitbucket
Certification
- Knowledge check: get started with databricks for data engineering.
- Certified associate in project management (CAPM)
- Applied data science i: scientific computing & python (with honors)
- Apache druid® basics
- Lean data approaches to measure social impact
Timeline
Data Engineer
Illinois State University
06.2020 - Current
Data Acquisition Analyst
Rutgers University, Dept. of Psychiatry
07.2019 - 06.2020
Big Data Architect
University of Connecticut, School of Pharmacy
09.2017 - 06.2019
Data Engineer
Marlabs Inc.
04.2017 - 08.2017
Manager, Enterprise Data Analytics
Robi Axiata Ltd.
07.2010 - 08.2014
Software Developer
Dohatec New Media
02.2005 - 06.2010
Master of Science - Information Technology Project Management
University of Bridgeport
Bachelor of Science - Computer Engineering
Shahjalal University of Science And Technology
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