Chiamaka Olisa
London,Greater London
Summary
I am a strategic and analytical professional with a strong foundation in data-driven decision-making, business intelligence, and operations leadership. I have proven track record of translating complex data into actionable insights, optimizing workflows, and enhancing stakeholder engagement across educational, financial, and digital domains. I am adept in leveraging tools such as Power BI, SQL, Python, and R to support business goals. I have a passion for solving real-world problems through innovation and collaboration.
Overview
17
17
years of professional experience
6
6
years of post-secondary education
1
1
Certification
Work history
Business Intelligence & Learning Manager
Explore Learning
London
07.2024 - Current
- Leveraged Power BI to track company KPIs, learner progress, and branch performance, enabling actionable insights for strategic decision-making.
- Conducted deep-dive data analysis on member accounts and learning outcomes to identify trends, gaps, and opportunities for service improvement.
- Collaborated cross-functionally with center managers to translate analytics into tailored lesson planning and branch-specific strategies, improving learner outcomes.
- Utilized problem-solving and root cause analysis to optimize branch performance, resulting in increase in learner retention and improved NPS
- Managed data integration and reporting pipelines to support both operational efficiency and educational innovation across multiple sites.
Digital Marketing Executive
16'Lillies Ltd
London, United Kingdom
02.2023 - 07.2024
- Designed and implemented digital marketing strategies that improved online reach and engagement by leveraging analytics platforms like Google Analytics and social media insights.
- Developed and executed paid advertising campaigns across Google Ads and Meta platforms, optimizing performance through A/B testing and ROI tracking.
- Created data-informed CRM segmentation strategies to personalize outreach and drive customer loyalty across product lines.
- Collaborated with cross-functional teams to align website UX enhancements with user data and strategic brand objectives.
- Delivered monthly digital performance reports with actionable recommendations to senior management.
Operations Manager
Choisique Ltd
01.2019 - 01.2023
- Spearheaded process automation and data tracking initiatives to monitor KPIs across departments, achieving measurable improvements in customer satisfaction and operational efficiency.
- Developed and maintained budget oversight practices, aligning financial planning with business objectives while minimizing operational risk.
- Led company-wide initiatives to improve service delivery, including revamping support workflows and deploying internal performance dashboards.
- Directed customer experience strategies through multichannel platforms, resulting in increased client retention and lifetime value.
- Coordinated agile-style project planning and team alignment for strategic launches and performance campaigns.
Administrative Manager
Artsci International Ltd
02.2013 - 01.2019
- Oversaw daily administrative processes and introduced system-wide documentation standards to enhance operational transparency and regulatory compliance.
- Directed interdepartmental projects including vendor contract renegotiation and business continuity planning, resulting in cost savings and operational resilience.
- Implemented new internal communication tools that streamlined scheduling, reporting, and collaboration across departments.
- Supported digital transformation projects by introducing administrative software to modernize data handling and staff management practices.
Executive Trainee
Keystone Bank Limited
10.2008 - 02.2013
- Supported high-impact financial projects by providing market analysis and credit performance insights.
- Contributed to interdepartmental initiatives by compiling data dashboards and executive presentations on client risk profiles.
- Engaged with frontline teams and customers to identify process inefficiencies and propose tech-enabled service enhancements
Education
Master of Science - Big Data and Business Intelligence
University of Greenwich
London, United Kingdom 01.2023 - 01.2024
Bachelor of Science - Mathematics
University Of Portharcourt
Portharcourt, Nigeria 11.2001 - 11.2006
Skills
- Business & Data Analysis
- Power BI, SQL, Python, R
- Data Warehousing & Visualization
- Strategic Operations & Performance Management
- Team Leadership & Cross-functional Collaboration
- CRM & Customer Insight Strategy
- Digital Marketing & SEO Analytics
- Project & Risk Management
Certification
Business Intelligence (BI) Essentials
IBM
June 2025
Excel Basics for Data Analysis
IBM
June 2025
Technical Skills
- BI Tools: Power BI, Advanced Excel
- Languages: SQL, Python, R
- Marketing: Google Analytics, SEO, CRM tools
- Data Skills: Data modeling, warehouse development, performance dashboards
Reference
References available upon request.
Timeline
Business Intelligence & Learning Manager
Explore Learning
07.2024 - Current
Digital Marketing Executive
16'Lillies Ltd
02.2023 - 07.2024
Master of Science - Big Data and Business Intelligence
University of Greenwich
01.2023 - 01.2024
Operations Manager
Choisique Ltd
01.2019 - 01.2023
Administrative Manager
Artsci International Ltd
02.2013 - 01.2019
Executive Trainee
Keystone Bank Limited
10.2008 - 02.2013
Bachelor of Science - Mathematics
University Of Portharcourt
11.2001 - 11.2006
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