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HAJANANTENAINA Rayan Stive
Antananarivo, Madagascar
Big Data Fullstack Engineer with 2+ years of experience in data integration (ETL), data governance, and data analysis
CodersRank Score
What is this?
This represents your current experience. It calculates by analyzing your connected repositories. By measuring your skills by your code, we are creating the ranking, so you can know how good are you comparing to another developers and what you have to improve to be better
Information on how to increase score and ranking details you can find in this blog post.
398.8
CodersRank Rank
Top 3%
days
Streak
Associate
Developer
JavaScript
Associate
Developer
Python
Highest experience points: 0 points,
0 activities in the last year
JavaScript
93.5
exp.
CSS
39.7
exp.
HTML
20.2
exp.
Python
123.8
exp.
SQL
12.7
exp.
TypeScript
9.6
exp.
Shell
4.8
exp.
List your work history, including any contracts or internships
YAS
Nov 2023 - Jan 2026 (2 years 2 months)
Big Data Fullstack Engineer
• Designed and implemented an automated data quality monitoring system achieving 99% data reliability,
including real-time alerting via email and Microsoft Teams.
• Migrated legacy SSIS-based ETL pipelines to a modern stack using Python, DBT, and Apache Airflow,
resulting in approximately 50% reduction in execution time and significant performance improvements.
• Migrated BusinessObjects dashboards to Power BI, improving user experience and internal operational
efficiency.
• Led knowledge-sharing sessions and
including real-time alerting via email and Microsoft Teams.
• Migrated legacy SSIS-based ETL pipelines to a modern stack using Python, DBT, and Apache Airflow,
resulting in approximately 50% reduction in execution time and significant performance improvements.
• Migrated BusinessObjects dashboards to Power BI, improving user experience and internal operational
efficiency.
• Led knowledge-sharing sessions and
Add some compelling projects here to demonstrate your experience
Data Quality
Nov 2023 - Present
YAS
Designed and implemented an automated data quality monitoring system achieving 99% data reliability,
including real-time alerting via email and Microsoft Teams.
including real-time alerting via email and Microsoft Teams.
This section lets you add any degrees or diplomas you have earned.
EMIT Université de Fianarantsoa
Bachelor, Internet/Intranet Application Development
Mar 2017 - Apr 2020
EMIT Université de Fianarantsoa
Master, Computer Modeling and Engineering
Nov 2021 - Jun 2023
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