Senior Data Engineer

Daniel Ofek

I love deep work on databases and storage, pipeline efficiency, and the scaling problems that show up when data systems have to stay fast, correct, and affordable.

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Focus

Where the craft lives

Data engineering is systems work: choose the right storage shape, keep pipelines lean, and design for growth before the pager goes off.

Databases & storage

Table formats, lakehouse layouts, object storage, and query engines that make large datasets feel local.
Pipeline efficiency

Streaming and batch paths that move only what matters — with clear contracts, low waste, and measurable runtime cost.
Scaling problems

Throughput, partition strategy, backpressure, and the operational edges that appear when volume and teams grow together.

Tech stack

Let’s talk about data engineering tech

The layers I work across — from ingestion and storage up through compute, governance, and the infra that keeps it running.

Analytics & Visualization

Mixpanel
Tableau
Apache Superset

Compute

Apache Spark
Trino
DuckDB
Delta-rs
Amazon Athena

Governance & Orchestration

Apache Airflow
Unity Catalog
AWS Glue Catalog
Apache Hive

Ingestion & Storage

Amazon Kinesis
Vector
Apache Parquet
Delta Lake
Amazon S3

Infra

Amazon EMR
Terraform
AWS ECS
Databricks
Nushell

Professional work

Building data platforms that hold under load

Senior Data Engineer at Bob (HiBob), focused on the infrastructure that turns product events and operational data into reliable, queryable systems.

What I optimize for

Correct storage layouts and formats before more compute
Idempotent, observable pipelines over fragile one-offs
Cost and latency as first-class design inputs
Clear interfaces between producers, platforms, and consumers

How I like to work

Trace a slow query or failing job back to the storage shape
Prefer boring, durable patterns when the data path is critical
Document trade-offs so the next engineer can move faster
Mentor through design reviews and production ownership

Contact

Let’s talk data systems

Open to conversations about storage architecture, pipeline performance, and hard scaling problems.

LinkedIn GitHub

Languages

High proficiency across languages

I have high proficiency in English, Russian, Czech, and Italian — and I’m comfortable collaborating professionally in all of them.