Israel Chesa

ISRAEL CHESA - |-| Liverpool, UK LinkedIn: Linkedin.com/in/chesaisrael/ | GitHub: github.com/Israel-Chesa Portfolio: https://israel-chesa.github.io/portfolio.github.io/ Open to Relocate/Remote PROFESSIONAL SUMMARY Certified Data Analyst with 8+ years of experience in extracting actionable insights from complex datasets to drive strategic decision-making. Successfully led projects that improved reporting efficiency by 40% and forecasted outcomes with 90% accuracy. Demonstrated expertise in statistical analysis and data visualization using advanced tools such as SQL, Power BI, Tableau, and Google Looker Studio. Proven ability to increase user satisfaction by 20% and reduce processing time for monthly reports by 30%. Collaborative team player with strong problem-solving and communication skills, excelling in a fast-paced organization where precision is paramount. Proficient at presenting complex data in a clear and compelling manner to stakeholders at all levels. Seeking to leverage my skills and experience to contribute to a data-driven organization's success. TECHNICAL SKILLS • • • • • • • Programming Languages: Python Databases: SQL (Microsoft SQL, MySQL, PostgreSQL) Data Analysis & Data Visualisation: MS Power BI, Tableau, Excel, Power Query, Seaborn, Matplotlib, NumPy, Pandas, DAX, Google Looker Studio Data Integration & Tools: Microsoft Fabric, Power Pivot, ServiceNow, Google Analytics Machine Learning: Scikit-learn, TensorFlow, PyTorch, MATLAB, Maple Collaborative Tools: Slack, Team Viewer, Zoom Office Tools: Microsoft Word, Excel, PowerPoint, Google Docs, Sheets, Slides CORE COMPETENCIES • • • • • • Data Analysis & Modelling: Data Analytics, Predictive Analytics, Data Modelling, Root Cause Analysis, Qualitative Analysis Monitoring & Evaluation Business Intelligence & Reporting: Business Intelligence (BI), Dashboard Development, Key Performance Indicators (KPI), ServiceNow Reporting, Insightful Reporting Data Management & Warehousing: Data Warehousing, ETL Processes, Data Integration, Data Profiling, Data Integrity Process Optimization & Project Management: Process Efficiency, Project Management, Strategic Decision Support, Business Performance Optimization Machine Learning & Advanced Analytics: Machine Learning, Advanced Statistical Models, Data Mining Soft Skills: Team Collaboration, Communication, Critical Thinking, Problem Solving, Adaptability, Stakeholder Management PROFESSIONAL EXPERIENCE LEAD DATA ANALYST Viagem Holdings, Lagos, Nigeria Sep. 2020 – Present • • • • Project Leadership: Led the implementation of data-driven projects by establishing key metrics, evaluating model performance, and optimizing workflows, resulting in a 25% increase in overall project efficiency. Spearheaded a cross-functional team, reducing project delivery times by 20% and improving stakeholder satisfaction by 15%. Operational Efficiency: Streamlined and automated monthly reporting, reducing reporting time by 40% and saving 25 hours per month. Optimized data processing workflows, leading to a 35% reduction in error rates and a 30% improvement in data accuracy. Dashboard Innovation: Designed and optimized over 40 interactive dashboards using Power BI, Tableau, and Google Looker Studio, leveraging DAX and Power Query for dynamic reporting; boosted user engagement by 30%. Introduced advanced filtering and drill-down features, increasing report interactivity by 25%. Data Integration: Engineered the integration of data from multiple sources using Microsoft Fabric and ServiceNow, enhancing data accessibility across departments and reducing data retrieval times by 40%. SENIOR ARCHITECT & DATA CONSULTANT Antiques and Decor, Lagos, Nigeria Oct. 2016 – Aug. 2020 • • • • Data-Driven Design: Integrated data analysis into design processes, utilizing VLOOKUP, HLOOKUP, and data merging to optimize resource allocation and reduce project costs by 20%. Improved project completion rates by 15% through better resource forecasting and allocation. Advanced Data Analysis: Conducted comprehensive analysis using Python, SQL, Power BI, Tableau, and Excel functions like INDEX-MATCH; leveraged Power Pivot for complex data relationships, boosting project efficiency by 30%. Identified key trends that increased operational efficiency by 25%. Data Integrity: Enhanced data accuracy by 25% through robust data cleaning and pre-processing techniques, including the use of DAX in Power BI for real-time data validation. Implemented quality control measures, reducing data discrepancies by 40%. Dashboard Development: Created interactive dashboards with Power BI, Google Looker Studio, and Tableau, employing Power Query for efficient data transformation, significantly improving communication and decisionmaking. Improved dashboard load times by 20% through optimized data queries. ARCHITECTURAL ANALYST Jigawa State Government, Nigeria Jun. 2015 – Sep. 2016 • • • Data-Enhanced Solutions: Applied techniques like VLOOKUP, pivot tables, and Power Pivot for analysing project data, leading to a 15% improvement in project decision-making. Streamlined data reporting processes, reducing report preparation time by 20%. Strategic Decision Support: Utilized SQL, Power BI, Tableau, and Excel for efficient data extraction, modelling, and reporting; integrated DAX to perform complex calculations for strategic insights. Supported executive decision-making, leading to a 10% increase in project approval rates. Insightful Reporting: Developed and presented data-driven reports and dashboards using Power BI, Google Looker Studio, and Tableau, incorporating dynamic filtering, DAX formulas to deliver actionable insights. Reduced report generation time by 30%, improving the timeliness of data delivery. ARCHITECTURAL ANALYST INTERN The Architects’ Collective, Lagos, Nigeria Jan. 2015 – May 2015 • • • Data-Driven Solutions: Supported architectural teams by conducting data analysis using Excel, Power BI, and Google Looker Studio, implementing VLOOKUP and Power Query to produce detailed visual reports that informed project strategies. Improved project planning accuracy by 20%. Collaboration: Worked with cross-functional teams to gather, analyse, and interpret data; utilized Power BI's data transformation capabilities to streamline data sharing and project alignment. Enhanced team collaboration, reducing project misalignment issues by 15%. Visual Reporting: Designed and implemented interactive dashboards using Tableau and Power BI, employing DAX and dynamic visuals to effectively communicate project metrics to senior management. Increased stakeholder engagement with reports by 25%. EDUCATION MBA International Business Management Institute, Berlin March. 2020 – Dec. 2020 B. TECH (Architecture) Federal University of Technology, Akure, Nigeria Sep. 2009 – Dec. 2014 CERTIFICATIONS AND TRAININGS • • • • • Member – International Society for Data Science and Analytics | 2024 IBM Data Analyst Professional Certificate – IBM | 2024 Google Data Analytics Professional Certificate – Google | 2024 Distinguished Fellow Member (DFCIPP) – Chartered Institute of Practicing Professional, USA | 2017 Associate PMP – Management Concept Expert | 2016