Dian A. Osondu-Aneke
Dublin,Ireland
Summary
Accomplished data professional with a strong background in data quality management, profiling, and modelling. Demonstrates expertise in web analytics tools and user behaviour analysis, complemented by proficiency in source-to-target mapping and data integration processes. Skilled in SQL and similar query languages, with experience using data visualisation tools such as Tableau and Power BI. Committed to leveraging analytical skills to drive data-driven decision-making and enhance organisational performance.
Overview
4
4
years of professional experience
6
6
years of post-secondary education
1
1
Certification
Work history
Data Analyst - Freelance
09.2024 - 02.2026
- Predictive Analytics & Customer Insights
- Developed a predictive model for customer behaviour , increasing marketing campaign effectiveness by 25% through targeted promotional strategies.
- Led a cross-functional team in an Agile environment, delivering data-driven strategies that achieved a 15% year-over-year growth in customer retention.
- Implemented comprehensive data governance policies, ensuring data integrity and security across multiple cloud platforms, including AWS and Azure.
- Orchestrated in-depth CRM data analysis, identifying key customer segments and optimizing engagement tactics, directly contributing to a 20% increase in loyalty program sign-ups.
- Spearheaded a collaborative project with the Marketing department to enhance the customer loyalty program, increasing lifetime value by an average of 30%.
- Performance Analytics & Strategic Reporting
- Design and maintain comprehensive KPI dashboards in Excel to track performance trends and support strategic decision-making
- Conduct detailed financial and operational assessments to analyze cost drivers and identify root causes of inefficiencies
- Lead process optimization initiatives with demonstrated ability to achieve 35% reduction in operational breaches
- Translate complex datasets into actionable insights for stakeholders to enhance operational and customer outcomes
- Data Management & Quality Assurance
- Execute data quality improvement programs through rigorous extraction and validation of large datasets (1,000+ accounts monthly)
- Perform comprehensive data profiling and analysis to evaluate optimal data sources for business information
- Complete source-to-target data mapping specifications across various database systems and canonical message structures
- Key Improvements Made:
- Created interactive dashboards using Power BI for easy data interpretation and presentation.
- Enhanced business operations by developing custom data models.
- Conducted detailed competitor analysis, provided actionable insights to stakeholders.
- Optimised data systems efficiency through regular system audits and updates.
Business Operations Specialist (Customer Operations)
MTN
01.2023 - 08.2024
- Developed financial and operational KPI dashboards in Excel to track performance trends, supporting strategic decision-making and reporting.
- Performed financial and operational assessments; analyzed cost drivers and root causes of inefficiencies, contributing to a 35% reduction in operational breaches and driving operational efficiency.
- Implemented data quality improvements through rigorous extraction and validation of large datasets (1,000+ accounts monthly), ensuring accuracy for financial and audit readiness.
- Collaborated with finance, commercial, and technical stakeholders, building a cross-functional network to align insights with business objectives and drive solutions.
- Translated complex datasets into actionable insights for stakeholders, supporting data-driven decisions to enhance operational and customer outcomes.
Customer operation specialist
Philson Electronics
11.2021 - 11.2022
- Managed end-to-end operational processes with 98% accuracy, reviewing pricing and documentation for financial control.
- Developed and maintained KPI reports to support management planning and performance review.
- Supported invoicing preparation and operational cost monitoring in collaboration with finance teams.
- Contributed to process optimisation and SOP documentation, reducing errors and improving workflow efficiency.
- Assisted in inventory control, reducing stock discrepancies.
- Streamlined operational procedures for improved efficiency.
- Partnered with HR to recruit high-performing operations staff.
- Ensured compliance with industry regulations by enforcing strict protocols.
Education
MSc - International Business Management
Griffith College Dublin
Dublin 09.2024 - 09.2025
BSc - Home Science and Management
University of Nigeria, Nsukka
Nsukka 11.2016 - 08.2021
Skills
- Strong background in data quality management, profiling, and modelling
- Experience with web analytics tools and user behaviour analysis
- Proficiency in source-to-target mapping and data integration processes
- Knowledge of SQL or similar query languages
- Experience with data visualization tools (Tableau, Power BI, or similar)
Certification
- Microsoft Excel (Advanced PivotTables, Power Pivot, Dashboards)
- SQL\MYSQL
- AI for Finance & Amazon QuickSight Basics (In Progress)
- CRM – Customer Relationship Management (Certified)
- Oracle
Languages
Language Spoken: English (Fluent)
REFERENCE
Available on request
INTEREST
Sustainability | operations excellence | data driven innovation
ACADEMIC & SIMULATION PROJECTS
Top sim cloud projects demonstrating relevant analytical and financial skills, Built dynamic Excel forecasting models and KPI dashboards to simulate financial performance, track trends, and support scenario planning., Conducted financial and operational data analysis to generate actionable, data-driven insights and strategic recommendations., Designed Excel-based automated reporting templates to streamline data consolidation and visualization, demonstrating process automation skills., Financial Manager, Entrepreneurial Innovation Simulation, Griffith College, Analyzed financial data and trends to guide strategic decisions in a simulated fast-paced environment., Applied variance and risk analysis to propose scalable, long-term improvement strategies., Presented data-driven insights and recommendations to simulated senior leadership., Achievement: 1st Place – SIM Business Simulation (2025).
LEADERSHIP EXPERIENCE
International Student Representative & Volunteer Griffith College Dublin Provided one-to-one mentoring and support for international students, applying empathy and clear communication. Engaged in career fairs and networking events, strengthening stakeholder engagement skills.
Timeline
Data Analyst - Freelance
09.2024 - 02.2026
MSc - International Business Management
Griffith College Dublin
09.2024 - 09.2025
Business Operations Specialist (Customer Operations)
MTN
01.2023 - 08.2024
Customer operation specialist
Philson Electronics
11.2021 - 11.2022
BSc - Home Science and Management
University of Nigeria, Nsukka
11.2016 - 08.2021