Data Analytics
Python · SQL · Excel · Pandas · Data Cleaning · Exploratory Data Analysis (EDA) · Statistical Analysis
I build sales dashboards, inventory platforms, and client portals for SMEs in the US and UK — using Python, React, and Tableau. Fixed-price packages from $1,500. Results delivered in 5–10 days.
A comprehensive toolkit built around one goal: turning messy business data into clean, actionable dashboards that save SMEs time and money.
Python · SQL · Excel · Pandas · Data Cleaning · Exploratory Data Analysis (EDA) · Statistical Analysis
Regression · Classification · Model Evaluation · Feature Engineering · Scikit-learn
Tableau · Power BI · Matplotlib · Seaborn · Dashboard Design · Business Intelligence
HTML · CSS · JavaScript · React · Node.js · Responsive Design · RESTful APIs
PostgreSQL · MySQL · Database Design · Query Optimisation · Data Modelling
Vercel · Render · CI/CD Pipelines · Git · GitHub · Deployment Automation
SME analytics platforms, sales dashboards, and full-stack data applications — built for real businesses with measurable outcomes.
Streamlit-based health tracking app with SQLite storage, bcrypt authentication, and an AI chatbot (Luna) powered by the Anthropic API. Features an interactive cycle calendar, comparison charts, and multilingual support across English, Twi, Hausa, and French. Built for accessibility across West African languages with a fully conversational AI health assistant.
Interactive Tableau dashboard analysing gadget revenue by country and category, providing actionable insights for business strategy and decision-making. Identified top 3 underperforming categories, informing a revised pricing strategy.
Built interactive BI dashboards with IBM Cognos Analytics analysing 65,000+ developer survey responses, identifying technology trends and demographic patterns. Surfaced 5 key hiring trends used to guide recruitment strategy recommendations.
Responsive restaurant website for Catfish Supreme, Awoshie Accra — menu showcase, WhatsApp ordering integration, and full SEO optimisation. Client started receiving inbound calls from Google within weeks of launch.
Interactive Python Plotly Dash sales dashboard with Supabase authentication, dark mode theming, expense tracking, and a full budget chart suite. Built for a real business client to track performance week-over-week. Replaced manual spreadsheet reporting with a real-time, role-authenticated analytics platform deployed on Render.
Scalable REST API with CRUD operations, rate limiting (100 req/15 min), role-based access control, and security middleware. Production-grade architecture designed to handle 10,000+ daily requests with zero downtime.
Professional journey combining data analytics and web development in Ghana
Feedback from businesses and individuals I have worked with in Ghana and beyond
William built our restaurant website and handled the full SEO setup. Within weeks we started getting calls from customers who found us on Google. Excellent work and very professional.
Fast, responsive, and highly skilled. William delivered our analytics platform on time and the quality of the code and visualisations exceeded our expectations.
Common questions about working with me
I offer freelance data analytics (Python, SQL, Tableau, Power BI), web design and development (React, Node.js, HTML/CSS), dashboard creation, machine learning, and business intelligence reporting — for clients in Ghana and remotely worldwide.
Local projects start from GHS 800 for portfolio sites, GHS 1,200 for landing pages, and up to GHS 5,000 for full business websites. International projects start from $500 USD for landing pages and from $1,500 USD for full analytics platforms or dashboards. Payment plans available. WhatsApp me for a free quote.
Yes — the majority of my work is now remote-first, serving SMEs in the US, UK, and across Europe. I deliver projects in 5–10 business days and communicate async via email or video call. Book a free 15-minute discovery call to discuss your project.
Yes — I am based in Accra, Ghana and work with clients locally and remotely across Africa and internationally. Currently available for freelance projects and full-time data analytics roles.
Python (Pandas, Scikit-learn, Matplotlib), SQL, Tableau, Power BI, IBM Cognos Analytics, Excel, and PostgreSQL. For visualisation I also use Seaborn and Plotly depending on the project.
The fastest way is to book a free 15-minute discovery call. You can also reach me on WhatsApp: +233 24 212 3801, email willyoks@gmail.com, or connect on LinkedIn. I usually respond within 24 hours.
Available for remote SME analytics and dashboard projects worldwide. Based in Accra — get in touch today or book a free 15-minute discovery call.
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