Masterclass: Low-Level Design of Payment Apps – How Razorpay & PhonePe Build Secure Systems

Date: 16-09-2026 Time: 02:30 PM

Nischay

Senior Software Engineer - Criteria Corp

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About Masterclass

Great analysis starts long before dashboards. In this masterclass, early-career Data Analysts learn how to design end-to-end analytics pipelines - from messy raw data to trusted business metrics - using the tools they already know: SQL, Python, Power BI, and Excel. The focus is on building analyses that are accurate, repeatable, and decision-ready.

Masterclass Outcomes

Thinking in Pipelines: How raw events become clean tables, metrics, and dashboards.
SQL as the Foundation: Writing clean, reusable queries that power all downstream analysis.
Python for Transformation: Automating cleaning, validation, and feature creation.
Visualization with Purpose: Turning metrics into clear Power BI dashboards and Excel summaries.
Data Quality Mindset: Building checks so numbers stay consistent over time.

Meet Our Host

Nischay is a Senior Software Engineer at Criteria Corp with over 6 years of experience in software engineering, including full-time, internship, and freelance roles across MNCs and established startups. He is an AWS and Salesforce Certified Developer with strong expertise in building end-to-end full-stack applications. A B.Tech graduate in Information Technology from JECRC, he also holds certifications in Machine Learning, Cognitive Class AI, and Google Digital Unlocked. He is passionate about leveraging technology to solve real-world problems, create social impact, and continuously learn while collaborating with diverse teams.

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About Crio.Do

At Crio.Do, we believe that the best way to learn is by doing. Our mission is to empower aspiring developers and data enthusiasts through hands-on learning experiences that go beyond theory. Our unique approach combines real-world projects, industry-relevant skills, and expert-led guidance to prepare you for the challenges of today’s tech industry. Each Crio program is designed to help you build and master practical Software Development, QA Automation, and Data Analytics skills. Focusing on real-world scenarios and challenges, our programs ensure that you don’t just learn – you apply, build, and grow your abilities step-by-step.

Join our vibrant Alumni Network and embark on a journey that takes you from knowledge to experience, and from experience to expertise. At Crio, we’re not just teaching tech skills – we’re building careers

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