MARY NYAMBURA
Data Analyst
Nairobi
Summary
I am a dynamic Data Scientist with expertise in Python and SQL, experienced in transforming complex datasets into actionable insights through statistical analysis, machine learning and advanced data visualization. Skilled in Power BI, Tableau, Microsoft Excel, PostgreSQL, DBeaver, Pandas, NumPy and Seaborn, I develop data driven models and analytical solutions that support predictive decision making, operational efficiency and sustainable development, delivering measurable community and business impact.
Overview
4
4
years of professional experience
3
3
Languages
Work History
Data Analyst
ONDIS Hub
01.2024 - Current
- Analyzed and reported on multi channel marketing campaign performance across social media, email, paid ads and search, tracking key metrics such as return on investment, click through rates, engagement and conversions and providing insights that supported campaign optimization and better decision making
- Prepared 10+ client dashboards per month, translating complex datasets into actionable insights that helped clients optimize campaigns, increasing engagement and conversions by 10% on average and supporting overall business growth
- Gathered, cleaned, organized and validated data from 5+ sources including social media platforms, websites and CRM systems, processing 20+ datasets per month to ensure accuracy and reliability, enabling precise reporting and actionable insights that supported campaign optimization and client decision making
- Monitored 5+ competitor campaigns, audience behavior, and market trends, delivering weekly insights that helped clients refine marketing strategies, improve engagement, and increase campaign effectiveness by 5-10%, maintaining a competitive edge
- Leveraged historical data from 15+ past campaigns to forecast audience engagement and campaign performance, providing data driven recommendations that helped strategy and creative teams optimize campaigns and improve performance by 5-10%
- Automated 5+ repetitive data tasks and reporting using scripts and software tools, maintaining efficient data pipelines that saved 10+ hours per week and delivered timely, accurate reporting for both internal teams and clients
- Collaborated with 3+ teams, including marketing, creative and content, translating data into actionable strategies that guided decision-making and supported 10+ campaigns with evidence backed insights
Social Media Manager
Twocan Africa
01.2022 - 11.2023
- Developed and executed 3-5 data driven social media and digital marketing campaigns per month, increasing brand visibility and generating 10-15% growth in audience engagement
- Managed 7 company social media platforms, overseeing content planning, scheduling, publishing and performance optimization, ensuring consistent engagement and timely updates
- Implemented SEO strategies, optimizing 15+ website pages and social media content with targeted keywords and hashtags to improve online discoverability and search rankings
- Created 15-25 high engagement marketing posts per month across multiple digital platforms, promoting products and services and increasing audience interaction by 5-10%
- Generated and nurtured 10-30 sales lead per month through social media engagement and digital prospecting, supporting conversion into qualified business opportunities
- Conducted market research and analyzed 3-5 competitors to identify business opportunities in security, corporate and conservation sectors, delivering actionable insights to the marketing team
- Collaborated with sale and technical team to convert online inquiries from 5-10 campaigns per quarter into qualified business opportunities
- Analyzed social media performance metrics weekly, using insights to improve campaign effectiveness and audience reach by 5-10%
- Maintained consistent brand identity and messaging across 7+ social media platforms, ensuring a professional and cohesive online presence
- Prepared weekly marketing performance reports covering 5-10 key metrics, highlighting achievements, challenges and growth opportunities to guide decision making
Education
Data Science Analytics
LuxDevHQ Academy
Kiambu01-2026
Data Analytics Essentials
Cisco Networking Academy
Online01-2024
Skills
Data Analysis and Visualization
Data Modeling
Data Cleaning
Excel
Power BI
Tableau
Sql
Python
DBeaver
Statistics
Machine Learning
A/B Testing and experimentation
Accomplishments
- Campaign Optimization: Increased campaign conversions by 10% using actionable insights.
- Audience Growth: Improved engagement by 15% through targeted campaigns.
- Efficiency Improvement: Automated data tasks saving over 10 hours weekly.
- Strategic Predictive Analysis: Forecasted performance improved campaigns by 5-10%.
Timeline
Data Analyst
ONDIS Hub
01.2024 - Current
Social Media Manager
Twocan Africa
01.2022 - 11.2023
Data Science Analytics
LuxDevHQ Academy
Data Analytics Essentials
Cisco Networking Academy
HOBBIES
- Building data analysis projects using real datasets.
- Continuous learning in Python, SQL and data tools.
- Creating dashboards and visual reports.
- Participating in data challenges like kaggle.