Data Engineer & GenAI Developer
Building production data platforms and LLM-powered systems. 3 live projects, 30M+ records processed, 8,600+ users.
I ran MAS Nexus, my own engineering practice, for over two years: 27 months as an embedded data engineer for a client on vendor basis (data pipelines, reporting layer, tooling decisions, AI features), plus the platforms below built alongside. Reference letter available on request.
Based in Germany as a Chancenkarte (Opportunity Card) holder, authorized to work anywhere in Germany and available immediately.
Serverless ELT pipeline over 30M+ geopolitical news events from GDELT, live since December 2025.
- 8,600+ unique visitors since launch, zero advertising
- 100K+ events ingested daily on an hourly refresh cycle, dbt marts with 30+ tests built weekly
- Two-mode AI chat: RAG over vector embeddings, plus SQL answers from tested query templates
- Slowest stage rewritten in Polars (~10x faster than Pandas)
- $0/month: MotherDuck + Dagster + GitHub Actions on free tiers
Python Polars dbt MotherDuck Dagster Great Expectations
Real-time streaming platform for AI-powered cart-abandonment recovery.
- Azure Event Hubs streaming into Delta Live Tables (Bronze, Silver, Gold)
- LLM-personalized recovery messages across 5 customer archetypes
- Medallion lakehouse (Bronze/Silver/Gold) with DLT expectations
- A/B testing with z-scores at 95% confidence
Databricks Azure Event Hubs DLT Cerebras dbt Streamlit
Databricks lakehouse over 100K+ orders from the Brazilian Olist marketplace.
- Medallion architecture with Delta Lake
- Kimball star schema: fct_orders + customer/product/seller dimensions
- Unity Catalog governance with documented lineage
Databricks Delta Lake SQL Unity Catalog Power BI
Anki deck with 5,000+ German words across A1 to C1, built while learning German myself. 7,800+ downloads on AnkiWeb, all organic.
- Designed the build pipeline with AI: word selection by frequency and learner need
- Neural audio for every word, images, verb conjugations
Python Anki Text-to-Speech
Interactive Excel dashboard analyzing 12,894 data job postings.
- 70+ step Power Query ETL, 228K+ rows in Power Pivot with custom DAX
- 4,000+ messy job titles standardized into role categories
Excel Power Query Power Pivot DAX
- Data engineering: Python · SQL · Databricks · Delta Lake · Azure · DuckDB/MotherDuck
- Pipelines: dbt Core · Dagster · Polars · Great Expectations · GitHub Actions
- AI/LLM: RAG · LlamaIndex · Cerebras · Voyage AI embeddings
- Visualization: Streamlit · Plotly · Power BI
Data Engineer & GenAI Developer. Open to Data Engineer, Analytics Engineer, AI Engineer, and Data Analyst roles in Germany. Available immediately, authorized to work in Germany (Chancenkarte, no sponsorship needed), English C1, German A2 (working toward B1).
B.Tech, Electrical & Electronics Engineering, SRM University, Chennai