Data Analyst - SQL - Python - Power BI Specialist

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MARTHA TSAGLI

************@*****.*** +233*********

http://marthaklenam.github.io/

Data Analyst

Profile Summary A very critical thinker and goal-oriented individual with immense interest in story-telling with data. Having an exceptional longing to utilizing machine learning models in extracting relevant insight from data for business acceleration. Proven resourceful and result driven through utilizing SQL queries to understand how business works. Highly self-taught with a robust experience in leveraging diverse data strategies to work out complex data science and machine learning computations. Skilled in effective collaboration with cross-functional teams to work closely together to solve complex problems and deliver long term impactful results. Highly interested in transforming organizations through impactful project that solves problems. Technical Skills

Python Programming language

Structured Query Language

Microsoft Excel and PowerBI

Git & GitHub

Microsoft Word and PowerPoint Presentation

Presentation and Project management skills

Professional Experience Consolidated Bank Lt. – Data Analyst Aug. 2025 – Present

• Leveraging Microsoft Excel, Power BI, Power Query, and SQL to analyze the bank’s operational data, identifying emerging trends, volumes, and customer segmentation insights to support strategic decision-making.

• Utilizing Structured Query Language and internal database systems to perform statistical analyses and generate reports, enabling data-driven insights for operational and strategic decision-making.

• Collaborating with cross-functional teams and key stakeholders to uncover operational trends, diagnose business problems, and apply data-driven strategies to deliver actionable solutions and improve performance.

• Designing and implementing data models and dashboards to translate complex datasets into clear, actionable reports enhancing efficiency and supporting strategic planning across departments. Ecobank Ghana PLC – Graduate Intern May. 2025 – Aug. 2025

• Performed accurate data entry and registration of Treasury Bill transactions, ensuring timely updates to internal systems and compliance with regulatory standards.

• Audited liquidation schedules and loan requirement documentation to verify accuracy, ensure compliance with internal policies, and support timely fund disbursement.

• Engaged in training on Bank of Ghana policies and compliance standards governing loan transactions, while gaining hands-on experience navigating the centralized depositor’s portal to support accurate data management and regulatory reporting. ZongoVation Hub – Data Science & Analytics Instructor Nov. 2024 – May. 2025

• Built and advanced the knowledge and analytical skills of women in under-represented communities through monitoring of projects, and visualizing project workflows.

• Trained participants to comprehend basic Python libraries in data extraction, and relevant data management skills for protecting data when working on data science projects.

• Pre-processed and analyzed content data in Microsoft Excel and Power Query to provide valuable insights into client engagement behavior and give actionable recommendations.

Wise – Data Science Mentee Nov. 2024 – March. 2025

• Utilized Natural Language Processing (NLP) complex techniques to understand how machines process human language.

• Pre-processed diverse Corpora alongside Python packages like Pandas, NumPy and Scikit-learn to extract meaningful insights into diverse texts.

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• Utilized Natural Language Processing tool kits like Snowball Stemmer to analyze and extract stem words from data enhancing a thorough meaning to complex and enormous words.

• Used Python programming language to extract positive and negative sentiment from list of customer reviews to understand business sales strategy.

Women-in-WACREN – Facilitator, Volunteer Nov.3-2024 – Nov.7-2024

• Facilitated workshop sessions centered on Climate and Weather data analysis aimed at empowering underprivileged African women to critically explore more of climate weather analytics space.

• Developed the capacity building expertise of women through analyzing and deriving insight into weather data to understand the intensity of climate conditions in the African continent.

• Provided guidance and feedback on project submission which enhanced the critical thinking of African women in STEM. Only Quality Data – Data Analyst, Internship June. 2024 – July. 2024

• Completed an Accenture job simulation focused on advising a hypothetical social media client as a Data Analyst at Accenture.

• Created PowerBI dashboards to visualize key data points on a Vertex Mobile Net to devise strategies aimed at boosting customer retention.

• Cleaned, modelled and analyzed 7 datasets to uncover insights into content trends to inform strategic decisions.

• Carried out data analysis (data cleaning/data wrangling/ data processing/data visualization) in Power Query and Excel to derive insight into an HR firm for customer churn analysis. Centre for Gender Studies and Advocacy – Research Assistant, University of Ghana Feb. 2022 – Mar.2024

• Conducted a comprehensive scoping review to evaluate articles that explored the effectiveness and implementation of intermittent preventive treatment of malaria in pregnant women.

• Collaborated with a multifaceted team to analyze insights and provide actionable recommendations for policy development and program improvement.

• Analyzed data sources to identify key trends, challenges and best practices in preventing maternal mortality rate in Ghana. Consolidated Bank Lt. – Office Assistant, Diaspora Business Dec. 202 2 – Nov.2023

• Generated bi-weekly departmental status reports in Microsoft PowerPoint, summarizing proposed action plans for team review, ensuring team members remained agile and well-informed.

• Maintained regular communication with international customers through courtesy calls, fostering trust and strengthening relationships between customers and the bank which increased diaspora portfolio.

• Maintained daily reports of managerial tasks of action points and relevant activities undertaken by team members. KaggleX Fellowship Program – D ta Science Fellow Aug. 2023 – Nov.2023

• Completed a rigorous 15-weeks (data science and machine learning) fellowship program for blacks in underrepresented communities.

• Seamlessly integrated Python for a wide spectrum of task including web-scraping, Exploratory Data Analysis and creating diverse plots

(scatterplots/bar graphs) to translate data findings.

• Created scatter plots using Python programming language (Pandas) to visualize and give comprehensive knowledge about data been studied.

• Applied diverse machine learning model metrics for testing model performance on unknown data for further analysis. Afro Fem Coders – Data Science Mentee May.2022 – Jan.2023

• Completed an 8-month intensive introduction to data science and machine learning program exploring hands-on data science projects to gain immense understanding of the data science concept.

• Utilized Jupyter Notebook effectively for programming in Python which developed my knowledge and skill capacity for carrying out real-world projects.

• Conducted thorough research on various prominent libraries and packages like NumPy, SciPy, Seaborn and Matplotlib for data analysis in Python language.

• Spearheaded a discussion forum for fellow trainees to break down complex data science concepts and further team up to work on projects.

Project Contribution

- Built a Machine Learning model (KNN) using Python for diagnosing the presence or absence of chronic kidney disease in observed patients.

- Spearheaded a team of 25 young women to build a dashboard in Power BI to analyze UN data in mitigating zero hunger. PUBLIC

- Assessed and joined KaggleX Discord Challenge where I carried out extensive research and answered interview questions on Generative AI and Model metrics XBoost for model evaluation.

- Served as a Google Build with AI member for evaluating and testing recent AI large language model (GEMINI) deployed by Google.

Education and Professional Certification AWS & Udacity Nano Degree – AI Programming with Python Oct.2024 Gender Equality Changemakers Certification Program, University of Pretoria March.2024 – Aug.2024 Bachelor of Arts - Political Science and French, University of Ghana Oct.2018 – Nov. 2022 Interests

- Analyzing market trends

- Reading news articles

- Continuous Learning and self-development

- Writing

Mentorship Program

- Wise & Coding Black Females Mentorship – Data Science Mentee, Natural Language Processing, Text and Sentiment Analysis

- Coding Black Females – Data Science Learner, Intermediate Python with Machine Learning

- KaggleX Data Science Fellow – Machine Learning Model Building

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