Louay Salamon, Developer in Montreal, QC, Canada
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Louay Salamon

Verified Expert  in Engineering

Unix Shell Scripting Developer

Location
Montreal, QC, Canada
Toptal Member Since
June 18, 2020

Louay is a seasoned data engineer with a solid software engineering background, experienced with massive data, distributed computing, critical data management, scalability solutions, and business intelligence. He's creative and takes initiative, and has well-developed project management and leadership qualities. These coalesce for him into the ability and the confidence to accept critical business challenges aligned with his projects.

Portfolio

Quantillo
Apache Airflow, PL/SQL, SQL, Oracle 12c, Hadoop, Spark, Scala, Python
Emirates Airline
Java, PL/SQL, SQL, Oracle 11g, Python, Hadoop
Syriatel Mobile Telecom
PL/SQL, SQL, Oracle 11g, Oracle 10g, Oracle9i, Python, Bash

Experience

Availability

Part-time

Preferred Environment

Flexibility

The most amazing...

...thing I've made is a graph-guided backtracking algorithm to suggest the optimal traffic steering to maximize net margin.

Work Experience

Data Engineer Consultant

2015 - PRESENT
Quantillo
  • Led data architecture and back-end development for Quantillo's tailored BI products.
  • Created descriptive/predictive analytics.
  • Designed and implemented data pipelines which were later migrated from bash/cron jobs to Airflow (Python).
  • Migrated all ETL jobs from Oracle PL/SQL to Spark (Scala).
  • Designed and implemented several tailored revenue optimization algorithms in PL\SQL, which were later migrated to use Spark (Scala).
Technologies: Apache Airflow, PL/SQL, SQL, Oracle 12c, Hadoop, Spark, Scala, Python

Senior Software Engineer

2013 - 2014
Emirates Airline
  • Developed data models, algorithms, and back-end services to manage and analyze customer loyalty network for millions of daily users (6TB of data with a live rule engine for rating).
  • Planned and implemented back-end fixes, batches, and upgrades.
  • Migrated part of the reporting processes to Hadoop stack (SQPop, Hive, Impala, and HDFS).
  • Handled security governance, unified monitoring and notification, data aging policies, and workload capacity handling techniques.
  • Received Najm (Star) Award for a scalability solution project of the Skywards loyalty program.
Technologies: Java, PL/SQL, SQL, Oracle 11g, Python, Hadoop

Data Architect & Database Administrator

2011 - 2013
Syriatel Mobile Telecom
  • Designed and implemented various data replication, scalability, and cloning strategies for production, pre-production, staging, testing, and development environments.
  • Provided 24/7 support for over ninety databases (~100TB) and thirty application servers with various availability options including RAC, Data Guard, HA clusters, and ASM.
  • Managed and enhanced a shell-based Syriatel file management system (pulling, distributing, and loading).
Technologies: PL/SQL, SQL, Oracle 11g, Oracle 10g, Oracle9i, Python, Bash

Database Administrator

2010 - 2011
Yarmouk Private University
  • Managed data integration among various systems (academic, financial, integrated library system ILS and learning management system LMS).
  • Planned and implemented enterprise information strategy, a BI portal, a Koha integrated library management system, and Moodle content management system.
Technologies: Python, Oracle Linux, Oracle Application Express (APEX), Oracle Database, Bash

Software Developer

2007 - 2009
AIU
  • Built an enterprise BI portal from the ground up including warehouse design, ETL, mining modules, and presentation.
  • Developed an AIU student portal and a customized HRMS.
Technologies: Oracle Business Intelligence Enterprise Edition 11g (OBIEE), Oracle Warehouse Builder (OWB), Oracle API Gateway, Oracle Application Server, Oracle Application Express (APEX)

Application Developer

2005 - 2007
Cham Palace Hotel
  • Designed and implemented a complex reservation module as a part of the entire hospitality system.
  • Contributed to end-to-end hospitality system implementation and customization in ten hotels and three branches.
Technologies: C#, Oracle Reports, Oracle Forms & Reports, Oracle9i

Performance-based Academic Decision Support System

An end-to-end BI system including data warehouse design, ETL mining modules ( K-Means clustering, SVMs, classification and regression) and presentation modules

Telecom Inter-operator Tariff and Traffic Steering

Designed and implemented customized processing algorithms and data flow to achieve an optimal revenue through steering the correct traffic and determining the proper deals/tariff through different operators.

Languages

SQL, Scala, Python, Java, Bash, C#, HTML5, CSS3

Tools

Oracle Forms, Oracle Application Express (APEX), Apache, Oracle Reports, Oracle Warehouse Builder (OWB), Oracle Business Intelligence Enterprise Edition 11g (OBIEE), Apache Airflow

Platforms

Oracle Application Server, Oracle BI EE 11g, Java EE, Oracle Database, Oracle Linux

Storage

Oracle 12c, Oracle PL/SQL, Oracle 11g, PL/SQL, Oracle9i, Oracle 10g

Frameworks

Apache Spark, Hadoop, Spark

Other

Big Data, Oracle Forms & Reports, Oracle API Gateway, Flexibility, Oracle WebLogic Application Server, Unix Shell Scripting, IIS

2009 - 2012

Master's Degree in Information systems

Damascus University - Damascus

2003 - 2009

Bachelor's Degree in Software Engineering

Damascus University - Damascus

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