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📊 Backend & Data Engineer | Expert in AWS, Python & Big Data Systems | 100% Client Satisfaction 👋 Do you need to build a backend infrastructure that doesn't just "run," but effectively processes, stores, and visualizes massive amounts of data? I help data-driven companies build robust architectures using AWS, Python, and Java, turning raw data into profitable business insights. With experience across Software Engineering and Data Pipeline Architecture, I bridge the gap between application development and data warehousing. I don't just write scripts; I build scalable engines. I work across: • Custom ETL/ELT Pipelines (Batch & Real-time streaming) • Serverless Backend Architecture (AWS Lambda, API Gateway) • Data Warehousing & Data Lakes (Redshift, BigQuery, S3) • Automating workflows with Apache Airflow & Robocorp • Visualizing business intelligence via Power BI & Looker Studio Whether you need to migrate legacy data to the Cloud, build a real-time analytics dashboard, or architect a Java/Python backend, I ensure your system is fast, cost-effective, and scalable. ✅ What I bring to your project: • Hybrid Expertise: Strong Software Engineering (Java/Python) skills applied to Big Data problems. • Cloud Mastery: Deep knowledge of the AWS Ecosystem (Glue, EMR, Athena, Kinesis). • Data Quality: Implementing dbt and rigorous testing to ensure your data is accurate. • End-to-End Delivery: From infrastructure infrastructure-as-code to the final BI Dashboard. • Communication: I translate complex engineering concepts into clear business updates. 🔥 Recent Projects I've Delivered: FinTech Data Lake: Built a secure Data Lake on AWS S3 + Redshift, processing 1TB+ daily transaction data using AWS Glue & Spark. E-Commerce Real-Time Analytics: Designed a streaming pipeline using Apache Kafka & AWS Kinesis to track user behavior in real-time, visualized in Power BI. SaaS Backend Migration: Refactored a legacy monolith into microservices using Java & AWS Lambda, reducing server costs by 40%. Marketing Automation System: Developed Python scripts utilizing Robocorp to scrape competitor pricing and auto-update internal SQL databases. Healthcare Reporting Portal: Created a compliant data warehouse in BigQuery with a Looker Studio frontend for doctors to view patient trends. 🧠 Tech Stack & Skills Languages & Backend: Python (Pandas, NumPy, Boto3), Java (Spring Boot), SQL (Advanced), Shell Scripting. Cloud & Infrastructure (AWS & Google): AWS Glue, Lambda, Kinesis, EMR, Athena, Redshift, EC2, S3, IAM, Google DataProc, BigQuery. Big Data & Orchestration: Apache Spark, Apache Kafka, Apache Airflow, dbt (Data Build Tool). Databases & Storage: PostgreSQL, MySQL, Amazon Redshift, Google BigQuery, DynamoDB. Visualization & BI: Power BI (DAX), Looker Studio, Tableau, Excel (Advanced). DevOps & Tools: Git, Docker, Jenkins, CI/CD Pipelines 🧩 Typical Use Cases I Help With: • ETL Automation: Replacing manual Excel reporting with automated Python/Airflow pipelines. • Cloud Migration: Moving on-premise SQL databases to AWS Redshift or Google BigQuery. • Backend API Development: Building APIs that serve data to frontend applications. • Data Cleaning: Using dbt and Spark to clean messy datasets for Machine Learning models. • Dashboard Creation: Building "Single Source of Truth" dashboards for CEOs and Product Managers. 🏭 Industries I've Served: FinTech · eCommerce · Logistics/Supply Chain · SaaS · Healthcare · Marketing Analytics 💬 Client Feedback ⭐⭐⭐⭐⭐ "John is a rare find—he understands the code AND the data. He automated our entire reporting process on AWS." ⭐⭐⭐⭐⭐ "Excellent communication. He built a dashboard that finally makes sense of our messy database. Highly recommended." ⭐⭐⭐⭐⭐ "Technical expert. Handled our migration from on-prem to Redshift without any data loss." 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐞𝐝 𝐒𝐤𝐢𝐥𝐥𝐬: Data Engineering, Python Developer, AWS Architecture, ETL/ELT Design, Big Data Analytics, Database Administration, Business Intelligence (BI), API Development, Data Modeling, Data Warehousing, Machine Learning Integration, Real-time Data Streaming, Serverless Computing, Agile Methodologies. 🚀 Let’s Talk If you need a technical partner who can handle both the code and the data—let's connect. I will help you turn your data into your company's most valuable asset. Click ‘Invite to Job’ to start a conversation about your architecture.

𝑨𝑰 𝒗𝒊𝒅𝒆𝒐𝒔 𝒔𝒉𝒐𝒖𝒍𝒅𝒏'𝒕 𝒋𝒖𝒔𝒕 𝒍𝒐𝒐𝒌 𝒊𝒎𝒑𝒓𝒆𝒔𝒔𝒊𝒗𝒆 𝒕𝒉𝒆𝒚 𝒔𝒉𝒐𝒖𝒍𝒅 𝒔𝒕𝒐𝒑 𝒕𝒉𝒆 𝒔𝒄𝒓𝒐𝒍𝒍, 𝒌𝒆𝒆𝒑 𝒗𝒊𝒆𝒘𝒆𝒓𝒔 𝒘𝒂𝒕𝒄𝒉𝒊𝒏𝒈, 𝒂𝒏𝒅 𝒅𝒓𝒊𝒗𝒆 𝒓𝒆𝒔𝒖𝒍𝒕𝒔. I'm an AI Video Creator specializing in AI UGC Ads, AI Commercials, AI Video Generation, AI Animation, AI Avatar Videos, and short-form video content for brands, agencies, SaaS companies, Shopify stores, and eCommerce businesses. From a rough idea or script, I handle the entire production process from concept development and AI prompt engineering to video generation, editing, sound design, captions, motion graphics, and final delivery. My focus is creating high-converting, scroll-stopping videos optimized for TikTok, Instagram Reels, YouTube Shorts, Meta Ads, Facebook Ads, and paid social campaigns. 🎯What I Create •AI UGC Ads •AI UGC Videos •UGC-Style Ads •Product Demo Videos •Product Review Videos •Testimonial Videos •Selfie-Style UGC Content •Direct Response Ads •Video Sales Letters (VSLs) •AI Commercials •Ecommerce Product Videos •Shopify Video Ads •Amazon Product Videos •AI Video Production •AI Video Generation •Text-to-Video •Image-to-Video •AI Animation •AI Storytelling •AI Movie Scenes •Promotional Videos •Brand Storytelling •Explainer Videos •SaaS Product Videos •Corporate Marketing Videos •AI Music Videos •Cinematic Social Content •AI Avatar Videos •AI Spokesperson Videos •Talking Head Videos •AI Influencer Videos •Multilingual AI Videos •Lip-Sync Videos •AI Voiceover Videos •Educational Videos •Training Videos •Social Media Content •TikTok Ads •Instagram Reels •YouTube Shorts •Meta Ads •Facebook Video Ads •Vertical Videos •Performance Marketing Creatives •Viral Social Media Content My Workflow Every successful AI video starts long before generation. 🎯My workflow includes: •Creative research •Competitor analysis •Hook development •Script refinement •Storyboarding •Prompt engineering •AI image generation •AI video generation •Character consistency •Motion control •AI voice generation •Lip-sync •Video editing •Motion graphics •Sound design •Captions •Color grading •Final optimization for each platform Whether I'm creating a 30-second UGC ad or a long-form AI storytelling video, every scene is designed to feel intentional, natural, and engaging. 🎯AI Platforms •Veo 3 •Higgsfield •Seedance 2.0 •Kling AI •Runway •Pika •Luma AI •Hailuo •HeyGen •Synthesia •ElevenLabs •Midjourney •Flux •Leonardo AI •GPT Image •Nano Banana •Professional Editing •Adobe Premiere Pro •Adobe After Effects •DaVinci Resolve •CapCut Pro 🎯What Clients Hire Me For Clients consistently hire me because I understand both creative production and performance marketing. 🎯I create videos that focus on: •Strong hooks •Viewer retention •Storytelling •Fast pacing •Scroll-stopping openings •High-converting creatives •Natural AI visuals •Brand consistency •Character consistency •Professional sound design •Captions and subtitles •Motion graphics •Platform optimization •Performance-driven editing Every project is created with one goal: producing content that looks authentic, captures attention quickly, and performs across paid and organic social media. 🎯Industries I Work With •Ecommerce Brands •Shopify Stores •SaaS Companies •AI Startups •Marketing Agencies •Real Estate •Health & Wellness •Beauty Brands •Skincare •Fitness •Coaches & Consultants •Personal Brands •Content Creators Why Work With Me? I don't simply generate AI clips. I build complete AI video productions from concept to final delivery. 🎯That means I can: ✔ Develop creative concepts ✔ Improve scripts and hooks ✔ Generate realistic AI scenes ✔ Maintain character consistency ✔ Blend AI-generated and real footage ✔ Create polished AI UGC ads ✔ Produce high-performing short-form content ✔ Optimize videos for TikTok, Instagram Reels, YouTube Shorts, and Meta Ads ✔ Deliver professional, platform-ready videos with fast turnaround and consistent communication If you're looking for an AI Video Creator who understands AI video generation, AI UGC, performance marketing, storytelling, video editing, and conversion-focused advertising, I'd love to help bring your next campaign to life. Send me a message with your project details, target audience, platform, and goals, and let's create AI-powered content that captures attention and delivers results.

I am David, a seasoned Data Engineer from Lagos, Nigeria, with a strong foundation in data science and software engineering. My background includes a Bachelor of Science in Mechanical Engineering and extensive experience in developing and optimizing data pipelines, integrating AI-driven solutions, and migrating codebases to cloud platforms to enhance scalability and performance. Having successfully completed over 60 machine learning projects, I excel at solving complex business problems and improving data-driven decision-making. My technical expertise spans Python, SQL, Prefect, Apache Airflow, Apache Spark, Pandas, Docker, Terraform, and cloud platforms such as GCP and AWS. In my roles, I have designed and maintained backend systems and APIs using Django and Flask, developed efficient data pipelines, and optimized databases using SQL and ORM frameworks. I am skilled in data preprocessing, feature engineering, data visualization, and creating reports to communicate findings and recommendations to stakeholders. My certifications in data engineering, Python programming, applied machine learning, and databases and SQL for data science demonstrate my commitment to continuous learning and professional development. Let's collaborate to leverage data and drive your business forward!

Over the years, I have built AI and data solutions across multiple domains, including GPT-powered chatbots, AI agents, prompt engineering, customer sentiment analysis, predictive machine learning models, NLP applications, and automated AI workflows. I have hands-on experience integrating the OpenAI API and developing applications with locally hosted LLMs like Ollama, giving businesses flexible AI solutions that fit their needs. I am also expanding my expertise in Data Engineering with Databricks, Apache Spark, and Delta Lake, enabling me to build end-to-end AI and data solutions, from data ingestion and processing to model deployment and intelligent applications. I believe great AI solutions combine technical excellence with a deep understanding of business needs. That's why I focus on building scalable, reliable, and production-ready systems that deliver measurable value. I value clear communication, clean code, and long-term collaboration. Whether you are looking to build an AI-powered product, automate business processes, develop intelligent chatbots, implement LLM applications, or create modern data pipelines, I'm ready to help bring your ideas to life. Let's build something impactful together.

From my profile, you'd see that I used to be a content writer, but over the past few months, I've developed my skills as a data engineer and I more than capable of handling your data needs. Businesses work with me when they need clean, reliable, and scalable data pipelines—whether it's ingesting raw data from APIs, Cloud Storage(AWS S3, ADLS Gen2), legacy databases, and transforming it into structured datasets, or preparing it for analytics and reporting. I specialize in building end-to-end data pipelines using modern data stack tools, with a strong focus on Databricks, PySpark, and SQL-based transformations. 🔧 WHAT I CAN BUILD FOR YOU End-to-end ETL/ELT pipelines (Batch processing & Spark Structured Streaming) Medallion Architecture (Bronze → Silver → Gold) Data cleaning, transformation, and validation workflows API data ingestion pipelines (REST APIs → Data Lake / Warehouse) Scalable data models for analytics and reporting Spark Declarative Pipelines (SDP, formerly Delta Live Tables) with SCD 1 and 2 Cloud-based data storage solutions (Azure Data Lake, AWS S3) Data Migration and Data Warehousing 🏗️ TECH STACK Languages: Python · SQL · PySpark Data Engineering: Databricks · Apache Spark · Delta Lake Orchestration: Prefect, Airflow, Databricks Workflows, Azure Data Factory Cloud & Storage: Azure Data Lake Gen2 · AWS S3 Data Sources: REST APIs · CSV · JSON · Databases · Parquet Version Control: Git · GitHub 📊 PROJECT EXPERIENCE ✦ Built an end-to-end ETL pipeline using Databricks to ingest and transform data from APIs into a structured data lake ✦ Implemented Medallion Architecture (Bronze, Silver, Gold layers) for scalable data processing ✦ Developed data transformation workflows using PySpark for efficient large-scale processing ✦ Integrated cloud storage (ADLS/S3) for reliable and scalable data ingestion 🚀 WHAT MAKES ME DIFFERENT ✦ Strong foundation in data engineering fundamentals + real-world projects ✦ Focus on clean, maintainable, and well-documented pipelines ✦ Fast learner with growing expertise in modern data stack tools 🤝 WHO I WORK BEST WITH ✦ Startups or individuals building their first data pipelines ✦ Businesses needing help with data ingestion and transformation ✦ Teams looking for a reliable data engineer to handle projects ✦ Anyone who needs structured data from messy sources If you're working with messy data, APIs, or need a pipeline built from scratch—I'm ready to help. 📩 Send me a message and let’s discuss your project.

Hi there, I’m Abimola Onibi, a Data Engineer with 5+ years of experience designing and delivering scalable cloud-based data platforms that transform raw data into actionable business insights. I specialize in end-to-end data pipelines, lakehouse architecture, modern ETL/ELT, and cloud infrastructure automation across both AWS and Azure. AWS EXPERTISE ✓ End-to-end ETL/ELT pipeline development (Python, SQL, PySpark, Airflow, Dagster, dbt) ✓ Data lake and lakehouse architecture using S3, Glue, Athena, EMR, Redshift, Kinesis ✓ Scalable data ingestion using Airbyte, Lambda, API Gateway ✓ Real-time streaming with Kinesis Data Streams, Firehose, and MSK (Kafka) ✓ Data modeling for analytics (3NF, Star Schema, Data Vault) ✓ Infrastructure as Code with Terraform, CloudFormation, and Docker ✓ Data quality and observability using Deequ, CloudWatch, CloudTrail ✓ CI/CD automation with CodePipeline and GitHub Actions AZURE EXPERTISE ✓ ETL/ELT pipeline development with Azure Data Factory and Azure Databricks ✓ Data lake and warehouse architecture using ADLS Gen2, Synapse Analytics, and Delta Lake ✓ Batch and streaming data processing with Azure Databricks and Azure Event Hub ✓ Scalable compute and orchestration using Azure Functions and Logic Apps ✓ Data modeling, cataloging, and governance via Azure Purview ✓ Infrastructure automation with Terraform and Azure DevOps Pipelines ✓ Monitoring and optimization using Azure Monitor and Log Analytics CERTIFICATIONS ✓ AWS Certified Data Engineer – Associate ✓ AWS Certified Solutions Architect – Associate ✓ Databricks Certified Data Engineer Associate ✓ AWS Certified Machine Learning Engineer – Associate ✓ AWS Certified Machine Learning – Specialty WHAT I DELIVER ✓ Reliable ETL/ELT pipelines for analytics and machine learning ✓ Scalable cloud architectures across AWS and Azure ✓ Real-time and batch data processing systems ✓ Lakehouse and warehouse architecture ✓ Cost-optimized and production-grade data platforms ✓ Automated data quality, governance, and observability WHY CLIENTS CHOOSE ME ✓ Proven Top Rated Upwork freelancer delivering high-impact data solutions ✓ Strong communication and collaboration skills ✓ Experience reducing data latency, lowering compute costs, and enabling real-time decision systems ✓ Capability to design, build, and optimize full data platforms end-to-end Let’s work together to build scalable, reliable, and future-ready data systems that empower your business with actionable insights.