Open to opportunities

N Jeff

@njeff

Message

I am a Senior Data Engineer and Cloud Architect specializing in scalable, AI-driven data platforms.

United States

Message

What I'm looking for

I want a senior role building secure, scalable, AI-driven data platforms where I can lead teams, drive governance, optimize costs, and productionize ML for measurable business impact.

I am a Senior Data Engineer and Architect with over 10 years delivering scalable, cloud-native data solutions across AWS, Azure, and GCP. I build real-time and batch ETL/ELT pipelines and design AI-driven platforms that enable advanced analytics.

At Cigna and prior roles I designed platforms using Snowflake, Spark, Delta Lake, Kafka and CDC, reducing compute costs by 35% and improving processing speeds by 40% in earlier positions. I partner closely with ML teams to productionize models using MLflow and SageMaker and integrate feature pipelines for reliable inference.

I lead data governance, lineage, and cataloging efforts with Collibra and Monte Carlo to ensure compliance with GDPR, SOC2, and HIPAA while improving discoverability and auditability. I automate data infrastructure with Terraform, Docker, and Kubernetes and optimize query performance through partitioning, indexing and caching.

I enjoy mentoring teams, fostering cross-functional collaboration, and delivering executive dashboards that drive strategic decisions. I seek opportunities to lead platform engineering, MLOps integration, and governance to create secure, high-performing data ecosystems.

Experience

Work history, roles, and key accomplishments

Current

Data Solution Architect

Current

Cigna

Mar 2022 - Present (3 years 7 months)

Designed and implemented scalable cloud-native data platforms using Snowflake, Spark, and Delta Lake and developed real-time ingestion pipelines with Kafka and CDC, optimizing Spark workloads to reduce compute costs by 35%. Partnered with ML teams to productionize models (MLflow, SageMaker) and defined enterprise data governance with Collibra and Monte Carlo.

Snowflake Apache Spark Delta Lake Kafka MLFlow Sagemaker Monte Carlo Python

Lead Data Engineer

Splash Financial

Mar 2021 - Feb 2022 (11 months)

Designed and optimized modern data lakes using Delta Lake, Iceberg, and Hudi, built low-latency OLAP systems (Snowflake, Druid, ClickHouse) and integrated ML-based anomaly detection, reducing inconsistencies by 40%. Modernized legacy platforms to cloud-native architectures and delivered self-service BI with Looker and Power BI.

Delta Lake Apache Iceberg Hudi Snowflake Apache Druid Clickhouse Looker Power BI Kafka

Senior Data Engineer

PatientIQ

Jan 2017 - Feb 2021 (4 years 1 month)

Spearheaded AI-driven pipelines with real-time feature engineering using Kafka, Flink, and CDC and transformed ETL with dbt and Airflow, improving processing speeds by 40% while ensuring SOC2, HIPAA, and GDPR compliance. Mentored engineering teams and reduced infrastructure overhead by 30% through serverless and cost-optimized designs.

Kafka Apache Flink DBT Airflow MLFlow Apache Spark Serverless

Data Engineer

Health-E Commerce

Aug 2014 - May 2017 (2 years 9 months)

Built high-performance ETL pipelines with dbt and Airflow, created KPI dashboards in Power BI and Tableau, and implemented secure authentication and access controls with IAM and HashiCorp Vault. Automated validation protocols and optimized database performance via indexing, partitioning, and caching to improve data quality and query speed.