Gaggan Bajwwa
Marketing Data Scientist @Connective3
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WORK HISTORY
Marketing Data Scientist @Connective3
Leeds, GB
Marketing Mix Modeling – $127k impact: Architected and deployed an end-to-end Bayesian using Google’s Meridian framework; delivered budget optimization recommendations worth $127k in measurable client value.Built a production-grade statistical pipeline (TensorFlow causal inference) with automated data quality checks and multi-client configuration management.Developed an interactive Streamlit + Vega ROI/attribution dashboard covering 10+ channels for real-time scenario planning and budget allocation.Added an LLM insight layer to translate Bayesian outputs into executive-ready strategy recommendations.Multi-platform Ad Creative Optimizer (Meta, Google, TikTok, Pinterest, LinkedIn): Designed a unified creative intelligence platform with real-time fatigue detection, automated evaluation (OpenAI vision + LLM scoring), and statistically robust A/B testing. Reduced manual review time by 75% and improved rotation decisions with brand-safety guardrails + approval workflows.Enterprise Agentic RAG (7% → 53% coverage): Delivered a SharePoint-integrated RAG system using LangChain + Qdrant, supporting 11+ file types (PDF/Word/PPT/Excel/Email) up to 500MB, with delta caching for incremental updates. Exposed via FastAPI + MCP server for natural language document queries.AI Marketing Agent: Built a multi-tool orchestrator using LangChain Agent SDK (ReAct) integrating live APIs Ad Optimizer, SharePoint RAG, etc.), cutting integration complexity by 70% with reliable error handling and progress tracking.Data platform: Delivered MCP servers for NLQ over BigQuery, LLM brand visibility scraping (ChatGPT/Perplexity/Gemini), keyword ingestion tooling, and modern orchestration with Airbyte, Airflow, dbt.Full-stack AI products: Built multi-service apps on GCP (OAuth/Secret Manager/docs), including an AI video platform (Gemini/Imagen/Veo) and a content-ops toolkit (Firecrawl, spaCy, embeddings, HDBSCAN, LLM recommendations).
EDUCATION
Aston University
Master's degree, Artificial Intelligence
Punjab Technical University
b. tech, Mechanical Engineering
ABOUT GAGGAN BAJWWA
A linguist who speaks Python. Proficient in data processing, statistical analysis, and machine learning using SQL, R, and Python. An experienced data scientist with a proven record in applying machine learning and data science techniques to solve business problems. Proficient in developing, deploying and maintaining end-to-end machine learning model pipelines using state-of-the-art Natural Language Processing techniques to automate business processes. Responsible for leading data science projects and facilitating collaboration with stakeholders across multiple-disciplines. Effective communicator who translates business requirements into technical requirements and drives business outcomes.Track record in implementing Machine Learning algorithms for business use cases, including- Longformer and BERT for Document Information Extraction and Classification- LSTM for sentiment classification-Lung cancer detection using modern Computer Vision techniques- Creating RAG\'s using combination of BERT and LLM\'s.
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