Open to opportunities

Hi, I'm Yassine

Data Engineer — Backend, Data & Automation · Atlanta, GA, USA

Data Engineer at Cognizant, building data-governance evaluation and automation tooling around Collibra for an insurance-industry client. Background in Scala backend microservices and in internal tools that automate business workflows, with hands-on data engineering projects using Airflow, Snowflake, dbt and PostgreSQL.

Resume

Experience

Data Engineer, Cognizant

Apr 2026 – Present

Building Python tools around Collibra to evaluate data classifications, automate governance workflows and make metadata easier to query.

Python
Streamlit
Collibra
REST APIs
MCP
Data governance
Classification metrics

Built a repeatable evaluation workflow that compares Collibra classifications with manually labeled reference data and reports precision, recall, F1 and accuracy.
Added historical run tracking, unmatched-record review, database-name matching and API retry handling so evaluations can be repeated and compared over time.
Automated part of a legacy-script conversion workflow; one recurring preparation step fell from roughly 20–30 minutes to about 2 minutes (personal estimate).
Built a read-only Model Context Protocol (MCP) integration for faster metadata lookup and validation while developing Collibra-connected tools.

Volunteer Software Engineer, Tunisian American Young Professionals (TAYP)

Sep 2026 – Present

Sole active developer building TAYP's new public website and custom content-management platform.

TypeScript
React
React Router
Tailwind CSS
Drizzle ORM
Cloudflare Workers
Cloudflare D1
Cloudflare R2
Zod
Vitest
Playwright

Implemented drafts, publishing, revision history, trash and recovery, rich-text editing, media management and a page/section builder.
Added administrator access boundaries, publication-readiness checks, search, editorial review and safeguarded bulk content operations.
Covered the system with automated tests, migration checks and CI.

Software Engineer, Laboratoires MZL

Jan 2025 – Jan 2026

Built Python and Google Sheets automation connecting orders, inventory, shipping and production planning.

Python
Google Sheets
ShipStation API
REST APIs
Automation
Inventory planning

Created a daily fulfillment-priority workflow so aging orders were no longer repeatedly blocked as inventory changed.
Built a production-planning dashboard, used daily, showing stockout risk and what to produce or replenish next.
Automated inventory consumption tracking from ShipStation shipped orders, replacing manual spreadsheet copy and paste.

Software Engineer, Cognira

Jan 2024 – Dec 2024

Part-time

Junior backend engineer on Scala microservices; built automation for configuration-heavy workflows.

Scala
Microservices
REST APIs
PostgreSQL
Cassandra
Python
Streamlit
Jenkins

Implemented an existing module's PostgreSQL persistence for a new tenant, following a schema designed by senior engineers.
Built a Python and Streamlit tool that automated multi-file CSV configuration changes with fuzzy matching, coordinated inserts and validation.
Took on most configuration work with the tool, finishing batches that had spanned several tickets in about half a day.

View all experience

Projects

EIA Electricity Data Pipeline

Team training capstone at Revature · major pipeline contributor

Ingests U.S. EIA electricity data into Snowflake RAW, SILVER and GOLD layers, orchestrated by Airflow and validated with dbt.

Python
SQL
Apache Airflow
Snowflake
dbt
Streamlit
Docker Compose
pytest

Major contributor across pipeline architecture, ingestion, transformation, backfills, testing and Streamlit data access.
Refactored Airflow into separate hourly and monthly ingest and transform pipelines with incremental ingestion and serialized backfills.
Added dbt source-freshness and schema tests and a pytest coverage gate.
Moved with the team from an earlier Spark, Kafka and MinIO design to the final Snowflake-first pipeline.

GitHub ↗

Instacart Bronze/Silver/Gold Data Platform

Team training project at Revature · broad implementation ownership

Dockerized PostgreSQL Bronze/Silver/Gold platform for Instacart order data, with validation gates and Streamlit analytics.

Python
PostgreSQL
pandas
SQLAlchemy
Docker Compose
Streamlit
pytest

Had broad ownership of the platform and pipeline implementation.
Built a staged profile, bronze, silver, gold and validate workflow with reports, logs and data-quality checks.
Added Streamlit analytics for KPIs, time behavior, product performance, reorders, customers and baskets.

View all projects