Elnaz Ghasemi
Cyberjaya
Summary
Results-oriented Senior Data Engineer with over 10 years of experience designing and optimizing large-scale data solutions for fast-growing companies. Skilled in developing and leading high-performance data architectures, building automated ETL pipelines, and managing database systems for trading, finance, and business environments. Experienced in BigQuery, PostgreSQL, MS SQL Server, and modern cloud data technologies. Strong leader with a proven track record in team development, business intelligence, and data quality improvement.
Overview
13
13
years of professional experience
Work History
Data Engineer / DevOps
Deriv (Fintech / Trading Platforms)
12.2022 - Current
- Designed and implemented DWH solutions utilizing both multidimensional (star and snowflake) and tabular methodologies to optimize analytics performance and support diverse BI requirements.
- Engineered scalable data architectures leveraging columnar and MPP databases (BigQuery) to efficiently process and analyze large volumes of trading data, resulting in significantly improved query performance and reduced data processing time.
- Designed and optimized relational databases using PostgreSQL and MS SQL Server to support mission-critical trading operations, significantly increasing data reliability, quality, and efficiency; reduced query latency by 60% and improved transaction integrity across high-volume trading datasets.
- Developed robust, automated data pipelines using Apache Airflow and Python (leveraging object-oriented principles) to orchestrate ETL processes in trading environments, improving pipeline reliability and data delivery efficiency by 80%.
- Led an AI project to help the team keep up with quick changes in the industry by automating review tasks, reducing review time by 70% and allowing the team to spend more time on important and complex work.
Database Tech Lead
Sedna (Financial Services / Brokerage)
09.2020 - 12.2022
- Collected and prepared datasets from different sources, improving data quality and making the analysis process faster for the team.
- Architected and managed scalable big data processing solutions and data lakes, enabling the efficient ingestion, storage, and analysis of over 500 million trading records per month, which improved data accessibility and analytics efficiency by 75%.
- Led design and deployment of scalable data infrastructure.
- Managed team delivery of data cleansing, modeling, high-load project deployments, and interteam collaborations.
- Oversaw and provided hands-on support for database migrations, upgrades, and optimizations.
SQL DBA / Database Optimization Specialist
Chargoon (ERP Solutions)
07.2014 - 09.2020
- Trained 60+ developers in database optimization, improving team SQL and tuning skills.
- Enhanced enterprise database performance (MS SQL) through query optimization and server tuning.
- Engineered BI architecture and ETL solutions; implemented Power-BI reporting systems.
- Worked closely with business and Back-end teams to deliver optimized data analysis and pipelines.
Fullstack Developer
IFA (Software Company)
07.2012 - 07.2014
- Designed and engineered scalable Back-end and data solutions across multiple business domains, including HR and finance, improving performance by up to 90%, enabling rapid development with automation tools, and leading in-house training and troubleshooting initiatives.
Education
Master of Software Engineering -
Islamic Azad University
01.2014
Bachelor of Software Engineering -
Shomal University
01.2009
Skills
- AWS
- GCP
- PostgreSQL
- MS SQL Server
- MySQL
- MongoDB
- Cassandra
- Terraform
- Chef
- Python
- C#
- Bash
- PowerShell
- T-SQL
- API integration
- Power BI
- PySpark
- Snowflake
- BigQuery
- Airflow
- DBT
- SSAS
- CI/CD pipelines
- Docker
- Kubernetes
- GitHub Actions
- DataDog
- Team mentoring
- Cross-functional collaboration
Languages
English
Timeline
Data Engineer / DevOps
Deriv (Fintech / Trading Platforms)
12.2022 - Current
Database Tech Lead
Sedna (Financial Services / Brokerage)
09.2020 - 12.2022
SQL DBA / Database Optimization Specialist
Chargoon (ERP Solutions)
07.2014 - 09.2020
Fullstack Developer
IFA (Software Company)
07.2012 - 07.2014
Master of Software Engineering -
Islamic Azad University
Bachelor of Software Engineering -
Shomal University