David Okyere Agyakwa
David Okyere Agyakwa

Data Scientist and Full-Stack Engineer

Open to offers · Member since 9 Oct 2026
Location
Accra, Ghana
Desired salary
Unspecified
Work preference
Hybrid / Full Time, Part Time, Contract
Experience level
Senior

About

Professional summary

I am an accomplished Data Scientist and Full-Stack Engineer with more than five years of hands-on experience building machine learning solutions and production-grade web and mobile systems. I specialize in taking products from data extraction and transformation through model development, deployment, and operationalization.

I build end-to-end ML pipelines for fraud detection, salary prediction, public-health forecasting, sentiment analysis, topic modeling, and recommendation engines. My work emphasizes deployable, explainable models, robust validation, and measurable business impact.

My technical background includes Python, Go, Rust, SQL, CatBoost, XGBoost, SHAP, ONNX Runtime, Docker, Streamlit, Flutter, and Next.js. I combine data science expertise with full-stack engineering to deliver APIs, dashboards, web platforms, and mobile applications.

I have delivered fraud detection systems processing 11,400 financial transactions, salary prediction models across 4,653 job postings, and backend improvements that increased performance by 40% while reducing response times by 60%. I have worked across fintech, e-commerce, hospitality, public health, marketplaces, payments, and media-related products.

I bring cross-functional leadership, stakeholder communication, Agile project delivery, and remote-team coordination to my work. I prioritize security, regulatory compliance, scalability, model explainability, and product-focused execution.

I am motivated by continuous improvement and translating data insights into practical outcomes. I am prepared to contribute as a senior technical professional on teams building impactful data-driven products.

Skills

28 capabilities

Tech stack & tools

Working toolkit

Experience

Career history

Data Science Consultant AMDARI

Built an end-to-end fraud detection pipeline for Finlora, processing 11,400 transactions with an 8.75% fraud rate and maintaining a complete audit trail. Cleaned transaction data by resolving duplicate IDs, parsing currencies, masking sentinel values, applying categorical hygiene, and restoring timestamp integrity.

Engineered features and validated CatBoost and XGBoost models using time-based splits and customer-group-aware cross-validation. Designed a Rust and Axum ONNX Runtime prediction API, and built topic-modeling and sentiment-analysis pipelines to monitor trends across Montra hotel departments.

Tech Lead We Tribe

Led engineering for an event-hosting and marketplace platform operating across 13 jurisdictions. Implemented Stripe Connect for payments and coordinated remote development efforts to support cross-jurisdiction reliability and compliance.

Refactored backend code and optimized queries, improving backend performance by 40% and reducing response times by 60%. Strengthened platform security through advanced authentication and integrated AI recommendation engines to improve event discovery and sales conversion.

Project Consultant (Data Science) 10Alytics

Served as team leader for Pod Nova in the 10Alytics Global Hackathon 2026, Track B, developing SIAGA for ASEAN public-health predictive intelligence. Built the TalentPulse salary prediction engine using 4,653 job postings, achieving MAE of $15,193 and R² of 0.9533, a 17.9% improvement over the legacy baseline.

Authored a computer vision curriculum featuring the IDScan OCR case study and MetroMove transit analytics project. Deployed models and dashboards with Go APIs and Streamlit, incorporating SHAP for model explainability.

Project Lead Developer Eyepa Limited

Directed development of a grocery e-commerce marketplace with Flutter mobile applications, a Next.js web frontend, and Go APIs. Delivered an administrative analytics dashboard and vendor portal with storefront customization capabilities.

Managed remote engineering collaborators and integrated vendor onboarding and payment workflows. Led product delivery across mobile, web, backend, analytics, and marketplace operations.

Software Engineer BUILD the Company

Produced the Aider Mobile application in Flutter and the SHIFT fitness application, leading mobile feature implementation and release cycles. Delivered user-facing mobile functionality in collaboration with product and design stakeholders.

Spearheaded PLUGG, an AI-powered social matching application, integrating recommendation models into the product. Worked with designers and stakeholders to prioritize features and improve the product experience.

Mobile Application Developer Eyepa

Developed restaurant e-commerce and delivery applications in Flutter, managing the full lifecycle from user interface development through production deployment. Built payment-processing and real-time delivery-tracking features modeled after Bolt Food workflows.

Maintained application releases and resolved platform-specific performance and stability issues. Supported reliable operation of production mobile products.

Software Engineer Branfluenzas

Implemented mobile applications and blockchain services, including Go APIs for the Sykabank mobile banking system. Contributed to backend integrations and mobile API design for production releases.

Added video playback features for the KOTOKO soccer club application and supported media integration. Collaborated with engineering teams on product functionality and delivery.

Monitoring Officer National Communications Authority

Monitored DAB radio quality and online broadcast status at the Broadcast Monitoring Center. Produced technical reports and maintained monitoring logs to support regulatory enforcement.

Prepared compliance correspondence for non-compliant stations and trained regional personnel on monitoring procedures. Supported broadcast compliance operations and technical oversight.

Education

Learning history

Coventry University

BSc (Hons), Computing Science

10Alytics

Data Science Certification, Data Science

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