# Oladipupo Legunsen

Oladipupo Legunsen is a remote worker on Himalayas, Senior Data Engineer at Horizontal Talent, based in United States.

Source: https://himalayas.app/@oladipupolegunsen

```text
I build governed healthcare data platforms that turn complex data into trusted analytics products.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | United States |
| Authorized to work in | United States |
| Salary expectations | 120k+ USD |
| Job categories | Data Engineer, Data Platform Engineer, Analytics Engineer, Business intelligence Engineer, Data Architect |
| Skills | Snowflake, Microsoft Fabric, OneLake, Azure Fabric Lakehouse, Fabric Warehouse, Azure Databricks, Azure Data Factory, ADLS Gen2, Delta Lake, SQL, Python, PySpark, Apache Spark, DBT, Fivetran, ELT, ETL, APIs, Configuration Driven Ingestion, Dynamic SQL, Stored Procedures, Query Optimization, Dimensional Modeling, Star Schemas, Dimensional Modeling (Star And Snowflake Schemas), Source To Target Mapping, Dynamic Tables, Materialized Views, Workload Optimization, Cost Optimization, Role Based Access Control, Metadata Management, Data Lineage, Data Catalogs, HIPAA, PHI, Power BI, Semantic Modeling, DAX, Row level security, Dashboard Development, Data Profiling, Data Reconciliation, Anomaly Detection, Validation, QA Scorecards, Git, GitHub Actions, Azure DevOps, CI CD, Unity Catalog, IAM, SSO, Secrets Management, RAG, LLM, Azure Data Lake, SQL Server, Healthcare Data, Healthcare Claims Data, Medicaid, Medicare, EVV |

## What I'm looking for

```text
I'm looking to build governed cloud data platforms and trusted analytics products, especially in healthcare, where I can improve data quality, performance, security, and self-service reporting while mentoring engineers and partnering with business teams.
```

## About

```text
I've delivered healthcare data platforms and curated analytics products for Blue Cross and Blue Shield of Minnesota, HHAeXchange, HealthPartners, and financial-services organizations.

At Blue Cross and Blue Shield of Minnesota, I built configuration-driven ELT pipelines and Bronze/Silver/Gold data layers across claims, membership, financial, clinical, and operational domains, reducing data refresh time by about 20%. I also designed an internal RAG assistant over curated claims and member data that reduced analyst lookup time by about 30%.

At HHAeXchange, I led a governed Lakehouse spanning EVV, caregiver, billing, patient, and operational data, processing more than 2 million records daily. I strengthened quality controls, reduced data incidents by about 35%, mentored five engineers, and enforced PHI-aware governance across controlled environments.

I bring hands-on depth in Snowflake, Microsoft Fabric, Azure Databricks, SQL, PySpark, dbt, Power BI, and cloud data governance. I focus on turning raw healthcare and operational data into reliable, secure, reusable products for compliance, reporting, and decision-making.
```

## Experience

### Senior Data Engineer

Horizontal Talent. May 2026 - Aug 2026

```text
Partnered with affordability teams to define source-to-target mappings for a centralized analytics product. Engineered configuration-driven ELT pipelines and Bronze/Silver/Gold data layers using Azure Databricks, PySpark, SQL, dbt, ADLS Gen2, Delta Lake, and Snowflake, reducing data-refresh by ~20%.
```

Skills: Snowflake, Azure-Databricks, PySpark, SQL, DBT, Azure-Data-Factory, ADLS-Gen2, Delta-Lake, Microsoft-Fabric, GitHub-Actions, Unity-Catalog, Power-BI, RAG, HIPAA

### Senior Data Engineer / Data Platform Engineer

[HHAeXchange](https://himalayas.app/companies/hhaexchange). Jan 2025 - May 2026

```text
Led design of a governed enterprise Lakehouse consolidating 5 healthcare domains. Built scalable batch and near-real-time ELT pipelines and Bronze/Silver/Gold models using Azure Databricks, Delta Lake, PySpark, SQL, dbt, and Azure Data Factory for high-volume healthcare data processing.
```

Skills: Azure-Databricks, Delta-Lake, PySpark, SQL, DBT, Azure-Data-Factory, Microsoft-Fabric, Power-BI, Unity-Catalog, Azure-DevOps, RAG, PHI-Masking

### Power BI Data Engineer

[Coforge](https://himalayas.app/companies/coforge-marketing). Jul 2024 - Dec 2024

```text
Migrated legacy reporting workloads to a Microsoft Fabric analytics platform, retiring ~12 legacy reports/pipelines and consolidating 8 disparate data sources. Designed Fabric Lakehouse Bronze/Silver/Gold layers and built reusable semantic models to improve report performance.
```

Skills: Microsoft-Fabric, OneLake, Lakehouse, Warehouse, Power-BI, Azure-Databricks, Snowflake, Azure-Data-Factory, DBT, Azure-DevOps

### Analytics Engineer

HealthPartners. Jun 2023 - Jun 2024

```text
Developed Snowflake SQL pipelines and curated models for healthcare claims, encounters, enrollment, eligibility, and provider/NPI data. Translated healthcare requirements into dimensional models and automated quality monitoring.
```

Skills: Snowflake, SQL, Dimensional-Modeling, Data-Quality, Healthcare-Claims

### Senior Data Analyst

Allianz. May 2022 - May 2023

```text
Engineered reusable SQL datasets and Power BI semantic models using SQL Server, Azure Data Lake, DAX, reconciliation, and query/model tuning to standardize financial and operational KPIs.
```

Skills: SQL, Power-BI, DAX, SQL-Server, Azure-Data-Lake, Data-Modeling

### Independent Data Consultant

Field Nation / Fiverr. May 2020 - May 2022

```text
Delivered short-term data engineering and analytics engagements including SQL development, pipeline support, Power BI reporting, and data-quality improvements.
```

Skills: SQL, ETL, Power-BI, Data-Quality

### Data Analyst

Hennepin County. Oct 2019 - May 2020

```text
Integrated enterprise and public-health data sources into centralized reporting models using SQL-based transformations and validation to support program-performance analysis.
```

Skills: SQL, Data-Integration, Reporting, Validation

### Data Analyst

Field Nation / Fiverr. Jan 2014 - Dec 2019

```text
Built an early foundation in SQL, reporting, data analysis, and client requirements through freelance and contract engagements.
```

Skills: SQL, Data-Analysis, Reporting

## Education

### North Hennepin Community College

Coursework, Computer Science. 2014 - 2016

```text
Completed computer science coursework at North Hennepin Community College from 2014 to 2016.
```

### Olabisi Onabanjo University

Bachelor of Science, Geography and Regional Planning. 2009 - 2009

```text
Earned a Bachelor of Science in Geography and Regional Planning from Olabisi Onabanjo University in 2009.
```

### Scrum.org

Professional Scrum Master (PSM), Scrum

```text
Certified as a Professional Scrum Master (PSM).
```

### International Association of Accessibility Professionals (IAAP)

Certified Professional in Accessibility Core Competencies (CPACC), Accessibility

```text
Certified as a Professional in Accessibility Core Competencies (CPACC).
```

## Tech stack

- Snowflake
- Fivetran
- Apache Spark
- GitHub Actions
- PySpark
- dbt
- Azure DevOps
- Python
- sso
- Git
- SQL
- Delta Lake
- Microsoft Fabric
- Unity Catalog
- Power BI

To contact Oladipupo, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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