Open to opportunities

Mohammed Haydar

@mohammedhaydar1

Data Engineer specializing in batch and streaming pipelines, cloud data platforms, and cost-optimized BigQuery warehouses.

Lebanon

Message

What I'm looking for

I’m looking for a role where I can build reliable batch and streaming pipelines on cloud data platforms, optimize BigQuery and SQL performance, and deliver trustworthy analytics to stakeholders—while improving engineering standards through collaboration.

I’m a Data Engineer with 4+ years of experience designing and operating batch and streaming pipelines, cloud data platforms, and data warehouses across banking, fintech, and consulting. I’ve delivered TB-scale processing on GCP, reduced BigQuery costs by 25%, improved SQL execution speed by 30%+, and built 30+ executive and operational dashboards.

In my current work, I architect and maintain dbt-based data warehouse models in PostgreSQL and AWS, organizing 15+ transformations into medallion layers and reusable data marts for wealth analytics and reporting. I also build and maintain 10+ ETL/ELT pipelines, refactor performance-critical SQL to improve responsiveness, and partner with QA to validate backend logic, data accuracy, and release readiness using Django and SQL.

I’m hands-on with Python, SQL, Apache Beam, Dataflow, BigQuery, dbt, and data quality practices, with a strong focus on reliable ingestion, cost optimization, and stakeholder-ready reporting. I also teach as a Lab Instructor and Bootcamp Instructor, which sharpened my ability to translate complex engineering concepts into clear, structured guidance—something I carry into my technical documentation and data delivery standards.

Experience

Work history, roles, and key accomplishments

Current

Data Engineer

Current

Neo Technologies – NBK Capital

Feb 2025 - Present (1 year 5 months)

Architects and maintains dbt-based data warehouse models in PostgreSQL and AWS, organizing medallion layers and reusable data marts for NBK Wealth analytics and reporting. Builds and maintains ETL/ELT pipelines and refactors SQL for improved execution performance and dashboard responsiveness.

DBT PostgreSQL AWS Data Warehouse Medallion Architecture Data Marts ETL ELT Django Data Quality Data Documentation

Current

Lab Instructor

Current

American University of Beirut

Jan 2025 - Present (1 year 6 months)

Leads CMPS 278 Web Programming and Design and CMPS 201 programming labs, delivering hands-on instruction in web development, Java fundamentals, and structured coding practices. Provides tailored student support focused on problem solving, debugging, and object-oriented programming.

Web Programming Java Object Oriented Programming Debugging Problem Solving

Data Engineer

iSolution

Oct 2023 - Feb 2025 (1 year 4 months)

Designed and operated TB-scale batch and streaming pipelines using Apache Beam on GCP Dataflow with BigQuery. Automated ingestion into BigQuery and built KPI and operational dashboards with Looker and Looker Studio.

Apache Beam Dataflow Pub Sub BigQuery Fivetran SQL Optimization Looker Dashboarding KPIs

Lab Instructor

Lebanese American University

Sep 2023 - Sep 2024 (1 year)

Instructed and mentored 125 students across five labs in object-oriented programming using Java and Python. Reinforced encapsulation, structured data handling, debugging, and practical software development skills.

Java Python Object Oriented Programming Encapsulation Debugging

Data Engineer Bootcamp Instructor

DgPad

Aug 2022 - Oct 2023 (1 year 2 months)

Guided fresh graduates entering data engineering careers through practical instruction in data processing, cloud fundamentals, and applied pipeline development.

Data Processing Pipeline Development

Data Engineer

CognativeX

May 2022 - Oct 2023 (1 year 5 months)

Orchestrated real-time and batch data pipelines on Google Dataflow to improve ETL framework reliability and throughput. Optimized SQL and BigQuery structures, built Looker Studio dashboards, and developed monitoring/data-quality services with Java and Spring Boot.

Dataflow Batch Processing SQL Optimization BigQuery Looker Java Spring Boot Data Quality Monitoring Data Integrity Recommendation Systems Python Flask fastAPI

Data Engineer Intern

CognativeX

Dec 2021 - Apr 2022 (4 months)

Developed Apache Beam data pipelines and integrated processed outputs with BigQuery for downstream analytics. Supported data pipeline work to enable analytics consumption.

Apache Beam Data Pipelines BigQuery

Data Engineer Bootcamp Trainee

DgPad

Oct 2021 - Feb 2022 (4 months)

Built Python Flask APIs for structured JSON delivery and created Highcharts visualizations for data-driven web applications. Completed applied training focused on delivering API responses and interactive data visualizations.

Python Flask JSON HighCharts API Development