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aamer2411/README.md
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I build the data infrastructure that businesses depend on. From ingesting Guidewire CDA insurance events in near-real-time to migrating 100+ legacy DataStage jobs to AWS, my work spans the full data engineering stack: ingestion, transformation, Lakehouse architecture, observability, and production delivery.

Across Insurance, Healthcare, and Financial Services, I've learned what separates pipelines that look good in demos from platforms that hold up at 3am. It comes down to governance, observability, and metadata-driven design. That's where I focus.

24 certifications across Azure, Databricks, AWS, and GCP are not a collection. They reflect a deliberate investment in understanding every layer of the modern data stack well enough to make the right architectural call, not just the fastest one.


     

⚡ What I Build




Near-real-time ETL from complex source systems: Guidewire CDA, hospital EHRs, legacy DataStage jobs, and financial feeds.






Medallion Lakehouses built for auditability, scale, and zero data loss from Bronze through Gold.






Production-grade pipelines with built-in observability, CI/CD, and automatic failure recovery.




📂 Featured Projects

Project Stack What it shows
Guidewire Claims Lakehouse Databricks, ADF, Unity Catalog CDC MERGE, SCD Type 2, metadata-driven control framework
Healthcare RCM Pipeline Databricks, ADF, ADLS Multi-hospital common data model, star schema, incremental loads
AWS DataStage Modernization Glue, Step Functions, Lambda, Redshift Event-driven migration of 100+ legacy jobs
Urdu Narrative Generation (MSc) HuggingFace, LoRA Fine-tuning on a single GPU, ROUGE-L +7 to 10%

🛠 Tech Stack



🏆 Certifications

Microsoft Azure  |  10 Certifications




Databricks  |  4 Certifications




Amazon Web Services  |  3 Certifications




Google Cloud  |  7 Certifications




🗺 Career Journey

Period Company Client Key Contribution
Dec 2025 – Present Exavalu Slide Insurance Near-real-time Guidewire CDA pipeline cutting data latency from daily to hourly; custom ABC observability and failure-recovery framework
Dec 2024 – Oct 2025 Capgemini Vanguard Migrated 100+ legacy DataStage jobs to AWS Glue: 40% faster runtime, 25% cost reduction
Jun 2021 – Nov 2024 Millenium Intech Verto Built a Common Data Model unifying 3+ hospital systems for cross-facility financial and operational analytics
Oct 2018 – Apr 2021 Sufooh Al Madinah Publix End-to-end on-prem SQL Server to Azure Synapse Lakehouse migration with Medallion architecture and Airflow orchestration

🎓 Education

Degree Institution Year
Master of Science in Data Science Liverpool John Moores University 2024 – 2025
Executive PG Programme in Data Science IIIT Bangalore 2022 – 2023
Bachelor of Technology in Mechanical Engineering Aligarh Muslim University 2014 – 2018

🤝 Let's Build Something Great

Available for data engineering engagements: Lakehouse builds, cloud migrations, pipeline modernization, and technical advisory across Insurance, Healthcare, and Financial Services.


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