About me

Hey there! I'm Samuel Lartey, a data enthusiast based in Accra, Ghana.

With a background in computer science, I bring a unique blend of technical expertise and creative vision to every project I undertake. Whether I'm deciphering complex datasets or exploring innovative solutions, my passion lies in unraveling the mysteries hidden within data.

Join me on a journey where insights drive action, and where every challenge presents an opportunity for growth. Let's navigate the world of data together, one discovery at a time.

What I do

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    Data Analysis

    Unlocking insights from raw data to drive strategic decisions

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    Scripting

    Automation and task scripting using Python to enhance efficiency and productivity.

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    Data Visualization

    Intuitive and visually appealing graphical representations of data.

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    Concept Art and Illustration

    High-quality concept art, character designs and Illustrations.

Soft Skills

  • Adaptable

    Adaptable

    I quickly adjust to any new project requirements and am always eager to learn. I enjoy stepping out of my comfort zone to embrace new technologies and methodologies with enthusiasm, ensuring I stay ahead of the curve.

  • Teamwork

    Teamwork

    I collaborate effectively in multidisciplinary projects and communicate clearly with team members.

  • Problem Solving

    Problem Solving

    i excel in problem-solving by meticulously analyzing challenges and breaking them down into manageable components.

  • Effective Communication

    Effective Communication

    I am proficient in articulating ideas and concepts clearly and effectively, whether in written or verbal form.

Tech Stack

Resume

Education

  1. Bachelor of Science in Computer Science

    Catholic University College of Ghana

    September 2017 — October 2021

    Relevant Coursework: Data Structures and Algorithms, Critical Thinking, Database Management Systems, Statistical Analysis, Object Oriented Programming, Data Science and Machine Learning.

Work Experience

  1. Data Analyst

    AFFINITY AFRICA

    May 2025 — December 2025
    • - Engineered an automated Python and SQL ETL pipeline that ingested, cleaned, and unified multi-source customer support data into a structured PostgreSQL database, cutting manual data prep time by 80% and enabling reliable analytics and automated reporting across teams.
    • - Designed and automated interactive Metabase dashboards and alerts that accelerated the identification of core customer needs by 60%, leading to more effective marketing, and reduced operational costs by 75% by proactively identifying and resolving bottlenecks in business operations.
    • - Contributed to a cross-functional initiative to understand customer savings behaviours by designing key data reports, conducting field surveys with 100+ customers, and analysing patterns and barriers; providing insights to inform targeted interventions to boost customer engagement.
  2. Data Analyst

    EXPAAT

    February 2024 — March 2025
    • - Utilized Python and SQL to analyse and interpret 10,000+ customer records, delivering actionable insights that informed 2 key business decisions, and improved operational efficiency by 15%.
    • - Built interactive dashboards in Power BI to track key performance metrics, providing cross-functional teams with timely insights for decision-making.
    • - Partnered with 5 cross-functional teams, leveraging Python, SQL, and Excel to identify data-driven solutions that increased process efficiency by 20% and streamlined business operations.
  3. Research Personnel

    UNIVERSITY OF GHANA MEDICAL CENTER

    October 2021 — February 2023
    • - Conducted surveys and collected data from over 500 patients using Google Forms and Microsoft Excel. This initiative resulted in a 25% reduction in patient wait times and a 30% increase in patient satisfaction scores.
    • - Utilized Microsoft Excel to process and visually present datasets of over 1,000 records, leading to a substantial 30% enhancement in data accuracy. This precision not only improved data reliability but also streamlined decision-making processes, which resulted in a 15% improvement in operational efficiency.
    • - Conducted literature reviews, analyzed research articles, and summarized key findings to guide research studies.
    • - Coordinated AIDET training programs aimed at enhancing communication and fostering a more patient-centered approach within the organization, which led to a 25% improvement in good staff-patient interactions and a 30% rise in patient satisfaction scores. These initiatives also contributed to a 15% decrease in complaints and a 10% improvement in overall healthcare quality metrics.
    • - Actively participated in cross-functional collaborations with the Thyroid Ghana Foundation and medical staff to organize awareness campaigns and health screenings, reaching over 1,000 community members.

Technical Skills

  1. Programming Languages

    Python, SQL (MySQL, PostgreSQL)

  2. BI Tools and Visualization

    Power BI, Tableau, Metabase

  3. Cloud Technologies

    Amazon Web Services (AWS)

Languages

  1. English

    Fluent

    Native proficiency

Portfolio

Contact

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