Priority DM . 2 days reply

Ask me anything

$8
Popular
Video meeting . 45 mins

Interview prep & tips | Data Engineer

$26
Video meeting . 45 mins
5

1:1 Mentorship | Data Engineer

1:1 mentorship to help you break into data engineering.
$26
Popular
Package . 30 products

Data Engineering Interview Prep 3-Month 1:1

12 weeks, 1:1 live mock interview + session every week
1:1 Mentorship | Data Engineer
Video Meeting
12
Interview prep & tips | Data Engineer
Video Meeting
3
Ask me anything
Priority DM
15
$537
Best Deal

Ratings and feedback

5/5
5 ratings
5
Testimonials
5/5
Vishal helped me to prepare for data engineering interviews including how to explain my project, or what kind of questions to expect, data structures and algorithms and everything end to end required to crack interviews. He's very knowledgeable and very insightful. I learned a lot.
Anvika Sharma
9th May, 2026
5/5
He shared his experience and it was very insightful. It was very helpful. I would definitely recommend budding data engineers to contact him if they feel lost.
Anonymous
24th Feb, 2026
5/5
Recently had a mentorship session with Vishal through Topmate, and it was honestly one of the most useful technical sessions I have attended. His expertise in Databricks is outstanding, and the way he explains concepts makes even complex topics feel simple. The session was very practical, interactive, and full of real world insights around ADF and Data Engineering. You can clearly tell he has strong hands on experience and enjoys helping others learn. Definitely worth the session. Highly recommended for anyone preparing for Data Engineering roles. Really appreciate your time and support.
Harpal Vaghela
9th May, 2026
5/5
I Had a great session with him. He has deep technical knowledge and explains complex concepts in a very clear and structured way. He answered all my questions patiently and provided practical guidance that was easy to understand. Highly recommend him to anyone looking for expert support.
Sapana Patel
7th Jan, 2026

About me

I'm a Senior Data Engineer at TD Bank, building production-scale data platforms using the full modern data engineering stack. Beyond my day job, I write for 8,500+ followers on Medium, weekly deep-dives on the exact topics that show up in senior data engineering interviews. Not theory. Real patterns, real answers, real trade-offs. What I work with daily: PySpark · Apache Spark · Spark Streaming Databricks · Apache Kafka · Apache Airflow · Azure (ADLS, ADF, Event Hubs) · SQL (Advanced) · Python · Delta Lake · Apache Iceberg · dbt · Snowflake · ETL/ELT Design · Data Modeling (Star Schema, Data Vault, Medallion Architecture) · Slowly Changing Dimensions · CDC (Change Data Capture) · Real-Time Streaming Pipelines · Data Quality & Observability · System Design for Data Engineers · DSA for Coding Rounds On Topmate I help you with: 🎯 Interview Prep: ETL & pipeline system design, Spark internals, SQL & PySparkcoding rounds, DSA patterns for data roles, data modeling design questions, Airflow & orchestration rounds 📐 System Design: How to structure a complete data engineering design answer, Medallion architecture, streaming vs batch trade-offs, storage layer decisions, partitioning, idempotency 🗂️ Data Modeling: Star schema, Data Vault 2.0, SCD Types, fact & dimension design, real-world modeling scenarios 💼 Career Strategy: What to study, in what order, how to position yourself for senior roles, resume review, LinkedIn & Topmate profile feedback. 📝 Content & Profile Review: Making your experience read the way it deserves to. I don't give you a reading list. I give you a structured roadmap based on where you are right now and where you want to go — whether that's cracking your first data engineering role or landing a senior position at a top company. 📖 Read my work: medium.com/@vishalbarvaliya

Terms | Privacy