Hellen Mati Moses
Nairobi
Summary
Results-driven Cloud Data Engineer & Data Analyst with experience in designing, automating, and optimizing data ecosystems across cloud and on-premise environments. Proven success in building ETL pipelines, scalable cloud architectures, and real-time analytics dashboards that enhance data quality, reduce latency, and improve decision-making efficiency. Skilled in Python, SQL, AWS CDK, and Azure, with hands-on experience in Machine Learning algorithms, AI prompting, and applying AI methodologies to automate data cleaning, transformation, and analysis for faster, more accurate insights.
Overview
8
8
years of professional experience
1
1
Certification
Work History
Data Engineer
Freelance
09.2024 - Current
- Designed and deployed Python- and SQL-based ETL pipelines, cutting data ingestion time by 40%.
- Automated cloud resource provisioning using AWS CDK, reducing deployment time by 35%.
- Built reusable pipeline templates, improving maintainability and cutting engineering effort by 30%.
- Developed data quality validation scripts (schema checks, anomaly detection), enhancing reliability.
- Integrated Power BI and Tableau dashboards, reducing manual reporting by 60%.
- Integrated AI models for intelligent data profiling and transformation, automating data wrangling tasks across multiple projects.
- Integrated AI prompting and machine learning models into analytics workflows, automating insight generation and trend detection.
- Applied AI-powered data cleaning and anomaly detection techniques using Python and ML models, improving dataset reliability and reducing preprocessing time by 40%.
- Enforced data security standards via encryption, IAM roles, and audit logging.
Volunteer Data Analytics Mentor
CAWSTEM
03.2023 - 05.2025
- Mentored women in STEM on core data analytics concepts, including Excel, SQL, Python, and Power BI.
- Designed and facilitated hands-on workshops focused on real-world data cleaning, visualization, and storytelling.
- Guided mentees through end-to-end analytics projects, emphasizing data-driven decision-making and business impact.
- Provided one-on-one career coaching on portfolio building, interview preparation, and transitioning into data careers.
- Evaluated and provided feedback on mentee projects to ensure analytical accuracy and presentation clarity.
- Collaborated with other mentors to organize mentorship events and improve program curriculum.
- Promoted gender inclusion in tech through community engagement and mentorship success stories.
Data Analytics / Data Engineer
Ideal Ceramics Ltd
08.2023 - 07.2024
- Engineered Azure Data Factory pipelines to process over 200K SKUs, increasing data throughput by 45%.
- Developed Power BI dashboards for sales and inventory, improving visibility across departments.
- Designed and optimized data pipelines integrating SAP database sources into analytics platforms.
- Extracted and transformed sales, inventory, and finance data from SAP ERP for reporting and dashboarding.
- Improved data reliability by automating SAP data extraction and cleansing using Python and SQL.
- Led customer sentiment analysis with Python, boosting satisfaction scores by 15%.
- Automated reports with Python and SQL, reducing manual data prep time by 50%.
Community Manager & Data Analyst
Data Science East Africa
10.2020 - 12.2023
- Grew a community of 5,000+ learners through data-driven engagement strategies and events.
- Built Python-based analytics pipelines to track event metrics, optimizing outreach by 35%.
- Designed Power BI dashboards to monitor KPIs, improving planning efficiency.
- Organized 30+ workshops on Azure, SQL, and Power BI.
Data Analyst
Echotel International
01.2021 - 08.2023
- Automated call center performance dashboards in Power BI, reducing reporting time by 40%.
- Built real-time monitoring systems using Python and SQL, improving SLA tracking by 50%.
- Designed KPIs that supported strategic operations and customer engagement.
- Migrated on-prem databases to Azure Cloud, strengthening security and uptime.
- Conducted customer segmentation analysis, improving marketing efficiency by 25%.
Technical Support Engineer
iWayAfrica Kenya
12.2017 - 08.2023
- Resolved network and VoIP issues for enterprise clients, increasing first-call resolution rates by 25%.
- Used diagnostic tools (Wireshark, Ping Plotter) to resolve outages and latency issues.
- Coordinated with NOC and infrastructure teams to ensure SLA compliance.
- Created technical documentation and SOPs that streamlined onboarding.
- Supported firewall configuration, VPN setup, and ACL management for data protection.
Education
BSc - Computer Science
University of Nairobi
Skills
- Data Engineering
- ETL/ELT pipeline design
- Data validation
- AI-assisted data cleaning and transformation
- Anomaly detection
- Data quality monitoring
- Cloud Platforms
- Programming
- Data Visualization
- Databases
- Automation
- Artificial Intelligence
- Machine Learning
- Workflow Optimization
Certification
- Microsoft Azure for Data Engineering - Coursera
- Azure Data Engineer - Africa Data School
- AWS Data Engineering Associate
- Data Analysis with Python - Udemy
- Advanced DAX for Data Analysis (Power BI) - Udemy
- Google BigQuery & PostgreSQL - Udemy
- Data Protection & Privacy Compliance - CIPIT (Centre for IP & IT Law, Strathmore University)
- Foundations: Data, Data Everywhere - Coursera
- Data Science Prep - Moringa School
References
- Victor Musili, Team Lead, iWayAfrica Kenya, vmusili@iwayafrica.net, +254 724 109782
- Sammy Mutai, Managing Director, Echotel International, sammy.mutai@echotel.international, +254 737 988419
- Edwin Ochieng, Head of Procurement/Finance, Ideal Ceramics, procurement@idealceramics.co, +254 729 610585
Hobbies and Interests
- Theater
- Environmental conservation
- Art
- Hiking
- Fishing
- Travelling
Timeline
Data Engineer
Freelance
09.2024 - Current
Data Analytics / Data Engineer
Ideal Ceramics Ltd
08.2023 - 07.2024
Volunteer Data Analytics Mentor
CAWSTEM
03.2023 - 05.2025
Data Analyst
Echotel International
01.2021 - 08.2023
Community Manager & Data Analyst
Data Science East Africa
10.2020 - 12.2023
Technical Support Engineer
iWayAfrica Kenya
12.2017 - 08.2023
BSc - Computer Science
University of Nairobi