Kofi O.

Data Analyst & Tableau Developer | Expert in BI, Tableau, SQL, Python

Want to work with a Top-Rated Tableau & Data Analytics Expert? I build modern, visually compelling, and interactive dashboards, helping businesses unlock the power of their data to drive smarter decision-making. With 8+ years of experience in data analytics and data visualization, I focus on delivering clean, insightful, and interactive dashboards that help businesses grow. I’m well-versed across industries—whether it’s marketing data, sales reports, SEO dashboards, predictive modeling, or complex SQL and ETL workflows, I can build the best solution for you. What I do Best: • Business Intelligence & Data Visualization – Tableau, Tableau Prep, Power BI, Looker Studio, Zendesk Explore • Data Analysis – Python, SQL • Machine Learning & AI – Predictive modeling, forecasting, fuzzy matching algorithms, large language models (LLMs), retrieval-augmented generation (RAG) • ETL & Data Pipelines – Optimizing SQL queries, automating workflows • Excel Automation / VBA Macros • Cloud Data Solutions – Azure, AWS, Snowflake, BigQuery How I Work I start by understanding your goals, data sources, and key metrics. From there, I design and develop a tailored solution—whether it’s a dashboard, report, data pipeline, or machine learning model. I work collaboratively, incorporating your feedback and adapting to changes along the way. My focus is always on delivering clear, actionable, and reliable results that support smarter, data-driven decision-making Why Choose Me? • Proven Track Record – Top-rated on Upwork with 900+ hours worked, perfect 5-star feedback, and 100% job success. • Excellent Communication & Transparency – I’m always clear, responsive, and provide frequent updates on project progress. • Data-Driven Approach – I help you make informed decisions with precise, actionable insights. • Fast & Reliable – I respect deadlines and deliver high-quality results on time. I ensure that all key milestones are met without delays. • Industry Expertise – I’ve built dashboards for businesses in marketing, finance, e-commerce, and healthcare, helping them track KPIs, automate reporting, and extract real-time insights. What Clients Say About My Work: ⭐️⭐️⭐️⭐️⭐️"Kofi did a great job on ETL and ML tasks using Amazon Web Services (AWS). We'd be happy to work with him again." ⭐️⭐️⭐️⭐️⭐️"Kofi was great at communicating and meeting deadlines. He quickly adapted to a new data connector and delivered our dashboard efficiently. I appreciated his thoughtfulness and recommendations for improving our dashboard visualizations." ⭐️⭐️⭐️⭐️⭐️"Kofi was great to work with and very knowledgeable about Tableau. I will definitely work with him again if I can." ⭐️⭐️⭐️⭐️⭐️"It was an excellent experience working with Kofi. He consistently produces high-quality visualizations and delivers on time. He is committed, responsive to feedback, and flexible when project requirements change. I look forward to working with him on future projects!" Need Help on Your Next Project? Let’s schedule a call to discuss your project objectives and how I can help you unlock insights, automate reporting, and build visually appealing, actionable dashboards.