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Stephany Wanjiru
Data Engineer at Safaricom PLC
Nairobi, Kenya
CodersRank Score
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150.9
CodersRank Rank
Top 4%
Top 10
Jupyter Notebook
Developer
Kenya
Highest experience points: 0 points,
0 activities in the last year
HTML
21.8
exp.
CSS
13.6
exp.
JavaScript
10
exp.
Jupyter Notebook
86.1
exp.
PHP
5.5
exp.
SCSS
1.8
exp.
Less
1.7
exp.
Python
9.4
exp.
List your work history, including any contracts or internships
Safaricom PLC
3 years 7 months
Data Engineer
Aug 2021 - Present (3 years 3 months)
-Developing ETLs and scalable data pipelines using Apache Nifi and Apache Kafka for data ingestion into the data lake for real-time analytics.
-Workflow management of pipelines using Apache Airflow for machine learning models and ad-hoc tasks.
-Managing and Scaling Hadoop to process 10 TB of data per day.
-Implementing the Dynatrace Monitoring tool to ensure 99.999% availability of the Hadoop ecosystem and developed plugins to monitor out-of-the-box services.
-Ingesting internal sources of data of various formats into our Data lake platform.
-Supporting developers consuming data for returning data to Enterprise Applications by supporting test and deployment of new services and features.
-Workflow management of pipelines using Apache Airflow for machine learning models and ad-hoc tasks.
-Managing and Scaling Hadoop to process 10 TB of data per day.
-Implementing the Dynatrace Monitoring tool to ensure 99.999% availability of the Hadoop ecosystem and developed plugins to monitor out-of-the-box services.
-Ingesting internal sources of data of various formats into our Data lake platform.
-Supporting developers consuming data for returning data to Enterprise Applications by supporting test and deployment of new services and features.
Internship Trainee
Apr 2019 - Aug 2019 (4 months)
Intern at the Information and Cloud Solutions Division,comprising of Database Administration,Infrastructure Support and Planning and Cloud solution Departments.
SEAMFIX
Jan 2021 - Aug 2021 (7 months)
BI Developer/Data Analyst
-Translated user requirements into Reports/charts using PostgreSQL and Eclipse Birt (Business Intelligence Reporting Tool) For Applications.
- Developed real-time dashboards using Metabase and AWS Quicksight to enable key stake holders make quick profitable decisions.
-Delivered detailed in-depth bi-weekly and monthly reports to give an oversight of product performances.
- Built ETL pipelines that extracted data from different storage databases(Oracle SQL,Postgress and MongoDB) cleaned and prepared the data. Performed statistical analysis on the data to deliver insightful reports for business stakeholders.
- Created visually appealing visuals and cards that are used in my report to convey insights in a story-telling manner using Metabase and AWS Quicksight.
- Accessed the impact of data drawbacks and make recommendations to the teams that should work on these recommendations.
- Developed real-time dashboards using Metabase and AWS Quicksight to enable key stake holders make quick profitable decisions.
-Delivered detailed in-depth bi-weekly and monthly reports to give an oversight of product performances.
- Built ETL pipelines that extracted data from different storage databases(Oracle SQL,Postgress and MongoDB) cleaned and prepared the data. Performed statistical analysis on the data to deliver insightful reports for business stakeholders.
- Created visually appealing visuals and cards that are used in my report to convey insights in a story-telling manner using Metabase and AWS Quicksight.
- Accessed the impact of data drawbacks and make recommendations to the teams that should work on these recommendations.
Equipshare
Aug 2018 - Oct 2018 (2 months)
Project Manager and Developer
In charge of developers building the equipshare website where equipment owners would be able to lend out their equipments for a cost.