Hire the Best Data Scientists
in Nigeria

I am a skilled Python developer, Data scientist, and Mathematician, with extensive experience in machine learning, writing, academic services, such as tutoring, proofreading, formatting (e.g., APA/MLA) and web technologies like HTML, React, Django, Angular and SQL. In addition to software development, I am also an experienced mathematics, statistics and economics tutor. I specialise in data science, mathematical modelling and regression analysis, and I am proficient with tools such as R, STATA, SPSS, NVivo, MATLAB, and Google Cloud Platform services. If you need help with your projects, whether it's complex data analysis, academic and professional guidance, Agentic systems or software solutions, I’m here to deliver high-quality work efficiently. Let’s collaborate and get things done.

I extract data from the web at scale, build AI-powered applications, and engineer the pipelines that connect them — from raw scrape to clean, queryable insight. 🕷️ Web Scraping & Data Extraction (Core Specialty) Whether it's a single site or a fleet of 30+ scrapers running in production, I build extraction systems that don't break: Stealth Automation: Bypass Cloudflare, CAPTCHA, Akamai, DataDome, and rate limiting using Playwright, Selenium, Puppeteer, and Scrapy — with proxy rotation and fingerprint spoofing Complex Targets: Facebook, TikTok, LinkedIn, Shopify, HubSpot, QuickBooks, SaaS platforms, paywalled sites, and JS-heavy SPAs Scale: Multi-million row pipelines with scheduled runs, error monitoring, and auto-recovery Output: Structured CSV, JSON, PostgreSQL, BigQuery, or direct API feeds — whatever your stack needs Experience: 5+ years maintaining large-scale scraping systems with real anti-bot handling — not just toy projects 💬 AI Web & App Development (Full-Stack) Custom AI chatbots and intelligent web applications for SMBs: AI Chatbots: Personalized customer service bots, knowledge bases, and conversational AI using LangChain, LangGraph, and RAG AI Agents: Autonomous agents with tool calling, multi-step reasoning, and decision-making Multi-Agent Systems: Agent-to-agent communication for complex workflows and collaborative problem-solving Personalized AI for SMBs: Custom solutions trained on your business data and documents Frontend: Next.js, React.js, TypeScript with modern, responsive UI design Backend: FastAPI, Flask, Django, Node.js Express for high-performance APIs Vector Databases: Pinecone, Milvus, ChromaDB for semantic search Deployment: AWS, GCP, Azure, Digital Ocean with Docker and Kubernetes ⚡ Data Engineering & ETL Pipelines Production infrastructure processing millions of records: Pipelines: Apache Spark, Airflow, Dagster for automated ETL Streaming: Kafka for real-time, event-driven systems Batch Processing: AWS Glue, Google Dataflow, Azure Data Factory Warehouses: BigQuery, Redshift, Snowflake with optimized schemas Transformations: DBT for data quality and business logic Migration: Zero-downtime moves to cloud warehouses 🤖 AI & LLM Integration Frameworks: LangChain, LangGraph agents and workflows Models: Claude (Anthropic), GPT-4, DeepSeek, Llama 3, Hugging Face RAG: Vector embeddings and semantic search for intelligent retrieval Observability: LangSmith and Langfuse for monitoring APIs: AWS Bedrock, Azure OpenAI, Anthropic Claude Fine-tuning: Custom model training for domain-specific tasks ☁️ Cloud & DevOps AWS: Lambda, ECS Fargate, Glue, Athena, Redshift, EventBridge, SNS, SQS, EMR GCP: BigQuery, Cloud Run, Dataflow, Dataproc, Firestore Azure: Data Factory, Databricks, Blob Storage, Cosmos DB DevOps: Docker, Kubernetes, Terraform, GitHub Actions, GitLab CI/CD Monitoring: CloudWatch, Datadog, Prometheus, Grafana 💻 Tech Stack Python · SQL · JavaScript · TypeScript · Bash · FastAPI · Next.js · React · PostgreSQL · MongoDB · Redis · BigQuery · Scrapy · Playwright · Selenium · LangChain · Docker · Kubernetes · AWS · GCP · Azure ✅ Why Work With Me I've built and maintained scraping systems at real scale — not just demos AI-assisted development means 2–3x faster delivery without cutting corners Full-stack ownership: frontend, backend, data, and deployment 100% Job Success Score on Upwork, Top Rated Plus Clear communication, regular updates, no surprises

Do you need accurate, actionable insights from your survey, research, or business data to make informed decisions through powerful statistical and data science analysis? Look no further! I am a top-rated and full-time research data analyst with >8 years of experience in IBM SPSS, R, Python, SAS, STATA, NVIVO, JMP, JASP, Atlas.ti, Excel/Google Sheets. As a statistics wiz, survey expert, and data science practitioner, my areas of expertise include: ⭐️ Questionnaire/survey design & validation ⭐️ Survey & research data analysis: descriptive, inferential (Chi-Square, regression, correlation, t-test, ANOVA, etc.), predictive modeling ⭐️ Detailed interpretation & storytelling of results ⭐️ Report writing, academic formatting (APA, Harvard), and publication-ready outputs ⭐️ Advanced automation & scripting for reproducible workflows I provide a variety of services including but not limited to: ★ Sample size calculations ★ Correlation, regression, & multivariate analysis ★ Hypothesis testing & statistical modeling ★ Factor analysis (EFA/CFA), structural equation modeling ★ Predictive analytics & data visualization ▶︎ and much more My specializations: Health Research & Predictive Analysis Master's/Ph.D. Thesis & Dissertation Modeling Company Survey & Performance Analytics Social, Economic & Behavioral Data Science Projects What clients say 👉👉👉 ☆☆☆☆☆ "She is always of great help, and the turnaround time is on point. I can depend on her for assistance and explaining the work thoroughly." "Great work. Amazing communication and delivered the project on time." "Esther's results were clear, organized, and thoroughly explained. Excellent work! I'm so impressed! I appreciate her efforts and insight to the analysis of the project!" ☆☆☆☆ ✍️ Feel free to get in touch, and we can discuss your project further

I am a Python Data Scientist with a proven track record of turning complex datasets into clear, actionable insights. My expertise covers the full data pipeline—data entry, cleaning, preprocessing, and advanced analytics—ensuring accuracy and efficiency at every stage. I specialize in data visualization using Tableau and Power BI, creating dashboards that not only look polished but also tell meaningful stories that drive decision‑making. On the analytical side, I am skilled in regression modeling, hypothesis testing, and clustering techniques such as K‑means, helping clients uncover patterns, segment audiences, and forecast outcomes with confidence. My workflow emphasizes tidy, reproducible code and scalable solutions, so projects remain efficient and adaptable over time. Clients value my team‑oriented mindset, attention to detail, and commitment to delivering high‑quality results. I approach every project with curiosity, precision, and a willingness to learn, ensuring that the solutions I provide are both technically sound and tailored to your unique goals. If you’re looking for a data professional who can bridge the gap between raw numbers and clear business insights, I’d be glad to collaborate on your next project.

I help businesses build AI-powered automation systems that collect, process, and transform data into actionable workflows. With 5+ years of experience in Python engineering, web automation, data pipelines, and machine learning, I specialize in building scalable systems that automate repetitive business processes, extract valuable insights, and improve operational efficiency. What I can help you build: • AI-powered automation workflows • LLM applications and AI agents • Intelligent web scraping and data extraction systems • Automated research and lead generation pipelines • AI document processing and summarization systems • Data pipelines and ETL workflows • API integrations and backend automation services • Reporting and operational automation systems I’ve built and maintained automated extraction pipelines across 300+ web sources, developed intelligent business workflows using Python and LLMs, and delivered automation systems for startups, agencies, and business teams across multiple industries. Tech Stack: Python • FastAPI • OpenAI APIs • PostgreSQL • Docker • LangChain • LangGraph • Airflow • Selenium • Playwright • Pandas • AWS • APIs • ETL • Data extraction • Web Scraping • Web automation Why clients work with me: ✔ Clean, maintainable production-ready code ✔ Strong communication and project ownership ✔ Scalable automation-focused solutions ✔ Business-oriented engineering approach ✔ Long-term reliability and support If you’re looking for someone who can combine AI, automation, data engineering, and real-world business workflows into practical solutions, I’d be happy to discuss your project.

Hi, I’m Umar — a quant-focused, business-driven Data Scientist helping companies and traders unlock the power of data through machine learning, forecasting, and automation and trading Bot. I specialize in: 1 Predictive Modeling with Python (Scikit-learn, TensorFlow, Pandas) 2 Algorithmic Trading Bots and Quant Strategies (Backtesting, Signal Generation) 3 Interactive Dashboards in Power BI & Tableau (KPIs, Trading Metrics, Custom Reports) 4 Data Cleaning, Exploration & Feature Engineering 5 SQL & Excel for efficient data extraction and reporting With over 3 years of experience, I’ve helped businesses and traders: Predict churn, demand, and price movements using supervised learning Build trading strategies using ML and technical indicators Automate reports and dashboards for financial and sales performance Uncover hidden patterns via clustering and segmentation What makes me different? 1: I bridge the gap between technical models and real-world business outcomes 2: I speak the language of finance and growth, not just code 3: I deliver fast, tailored solutions that meet your bottom-line goals Ready to turn data into smart decisions or automated trades? Let’s chat — send me a message today.