Since 1999
Computer Science Graduate
Senior Data Engineer
Indie Developer

VIJAYA GOPINADHREDDY VELAGALA

Hyderabad, India [email protected]

Data Engineering Expertise

Architecting petabyte-scale Medallion Lakehouse ecosystems using PySpark, Databricks, and AWS/Azure serverless infrastructure.

Proven track record of sloshing compute latency and guaranteeing 100% data integrity via Write-Audit-Publish (WAP).

Technical Arsenal

Data Processing & Compute

PySpark
Apache Spark
Databricks / Delta Lake
dbt (Data Build Tool)
Flink2024

Cloud Ecosystem

AWS
Glue
Step Functions
Lambda
CloudFormationMay 2025
Aurora PostgreSQL
S3
Azure
Data Factory (ADF)Dec 2024
Synapse AnalyticsDec 2024
CosmosDBDec 2024
Event HubsDec 2024
Azure DevOps
GCP
Vertex AI
Gemini
Gen AI Leader
Firebase
AuthenticationFeb 2021
FirestoreFeb 2021
FunctionsFeb 2021

Architecture & Patterns

Data Architecture
Lakehouse / Medallion
Write-Audit-Publish (WAP)
Z-Ordering & Data Skipping
Distributed Systems
High/Low-Level System Design
Salted Joins
Software Design Patterns
MVC2024
Singleton2024
Observer2024
State Machine2024

DevOps, Testing & Infrastructure

Validation
Pytest
Automated Frameworks
CI/CD & Version Control
GitHub Actions
Git
Containerization
Docker

Foundational Programming & Full-Stack

Core Languages
Python
SQL
Generative AI
Prompt Engineering
JavaScript Ecosystem
ReactJSFeb 2021
NodeJSFeb 2021
Databases
MongoDBFeb 2021
MySQLFeb 2021
Web Fundamentals
PHPFeb 2021
HTML & CSSFeb 2021
Game Dev
C++2024
C#2024
Unity2024

Professional Experience

Active Missions

Feb 2025 – Present
ACTIVE

Infosys

CLIENT: British Petroleum

Specialist Programmer L2
  • ❖Engineered an automated Pytest-driven validation framework within CI/CD pipelines, eliminating manual SQL checks and achieving a 0% defect injection rate for mission-critical reference data.
  • ❖Architected serverless PySpark ETL pipelines utilizing AWS Glue and Step Functions, reliably processing multi-terabyte datasets while reducing execution time by 30%.
  • ❖Standardized infrastructure deployments across Dev, Staging, and Prod environments using AWS CloudFormation, ensuring 100% environment parity across global regions.

Past Missions Archive

Jan 2018

Developers@Work

Freelance Software Engineer & Content Creator
MISSION STARTED
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May 2018

KK Consultancy

Full-Stack Developer Intern
MISSION STARTED
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Nov 2020

Infosys

Digital Specialist Engineer
MISSION STARTED
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Feb 2021

Infosys

Digital Specialist Engineer
MISSION ENDED
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Feb 2021

Developers@Work

Freelance Software Engineer & Content Creator
MISSION ENDED
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Feb 2021

KK Consultancy

Full-Stack Developer Intern
MISSION ENDED
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Mar 2021

Infosys

Specialist Programmer L1
MISSION STARTED
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Dec 2024

Infosys

Specialist Programmer L1
MISSION ENDED
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Technical Projects

Active Missions

Jan 2026 - Present
ACTIVE MISSION

Retail360 Enterprise Lakehouse

Databricks, Delta Lake, PySpark
  • ›Designed a production-grade Medallion Lakehouse architecture (Bronze/Silver/Gold) for enterprise analytical workloads.
  • ›Decreased analytical query latency by ~40% by implementing advanced Z-Ordering and Data Skipping techniques on Delta tables.
  • ›Engineered Salted Join strategies in PySpark to efficiently mitigate data skew and prevent out-of-memory (OOM) errors in high-volume distributed joins.
  • ›Guaranteed downstream data integrity by building a Write-Audit-Publish (WAP) pattern with rigorous data quality checks to prevent schema drift.

Past Missions Archive

May 2018

Maha Lakshmi Finance

PHP, MySQL, JavaScript, HTML, CSS
PROJECT STARTED
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Jun 2018

Red Ants (Social Community Platform)

PHP, MySQL, CSS, JavaScript
PROJECT STARTED
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Nov 2018

Maha Lakshmi Finance

PHP, MySQL, JavaScript, HTML, CSS
PROJECT DELIVERED
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Nov 2018

Red Ants (Social Community Platform)

PHP, MySQL, CSS, JavaScript
PROJECT DELIVERED
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Feb 2019

Anveshna (Event Management Portal)

PHP, MySQL, HTML, CSS, JavaScript
PROJECT STARTED
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May 2019

Sparkle Twilight (Auth Framework)

ReactJS, NodeJS, ExpressJS, Firebase
PROJECT STARTED
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Dec 2019

AAA (Academics Administration Automation)

Microservices Architecture, Node.js
PROJECT STARTED
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Feb 2020

Sparkle Twilight (Auth Framework)

ReactJS, NodeJS, ExpressJS, Firebase
PROJECT DELIVERED
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Apr 2020

Evolved Pattern Matching (Rabin-Karp)

Python
PROJECT STARTED
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Apr 2020

Movie Recommendation System

Python, Machine Learning (K-Means, Naive-Bayes), Flask
PROJECT STARTED
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May 2020

AAA (Academics Administration Automation)

Microservices Architecture, Node.js
PROJECT DELIVERED
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May 2023

Harmony Keeper 2D

C#, Unity, ShaderLab
PROJECT STARTED
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Jun 2023

Harmony Keeper 2D

C#, Unity, ShaderLab
PROJECT DELIVERED
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Aug 2023

Eggventure 3D (FPS Simulation)

C++, C#, Unity, ShaderLab, HLSL
PROJECT STARTED
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Sep 2023

Eggventure 3D (FPS Simulation)

C++, C#, Unity, ShaderLab, HLSL
PROJECT DELIVERED
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2024

Fruit Collector 3D

C#, Unity, Service Locator Pattern
PROJECT STARTED
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Education & Credentials

Degree

10th

Adity Jr. College, Tadepalligudem - Sasi Institute of Technology & Engineering - Jawaharlal Nehru Technological Universit, Kakinada(JNTUK) (Board of Intermediate Education, Andhra Pradesh) (Board of Secondary School of Education, Andhra Pradesh)
Timeline: JUN 2013 - APR 2014Duration: 1 YearCGPA: 6.9/10

Official Certifications

  • Logo
    Microsoft: Azure Data Engineer Associate (Expires: Jan 2026)
  • Logo
    Google Cloud: Generative AI Leader Certification (Expires: Sep 2028)
  • Logo
    HackerRank Core Accreditations: SQL, Python, Java, Node, React, JavaScript, REST API
  • ✦
    Systems & Engineering: Infosys Certified Software Programmer

Professional Training

Full-Stack Game Development

  • ›Platform: Outscal
  • ›Focus: C++, Unity, MVC, Memory Management, Design Patterns.
  • ›Duration: 6 Months
  • ›Timeline: 2023 - Jan 2024

Courses & Development

MongoDB MongoDB Basics, MongoDB for Javascript Developers.
Data Engineering The Complete dbt Bootcamp (Udemy), Databricks Certified Data Engineer Prep (Udemy), Text Prompt Engineering & Real World AI Apps (Google)
Cloud & Architecture Ultimate AWS Certified Solutions Architect Associate SAA-C03 (Udemy), System Design (GeeksforGeeks).

Connect & Explore

DIGITAL FOOTPRINT

Website
Websitethedevelopers.work
GitHub
GitHubthedeveloperswork

PROFESSIONAL & NETWORKING

LinkedIn
LinkedIndeveloperswork

CONTENT CREATION & BLOGS

YouTube
YouTubedeveloperswork
Medium
Medium@developerswork
Twitch
Twitchdeveloperswork

CODING & COMPETITIONS

HackerRank
HackerRankdeveloperswork
LeetCode
LeetCodeDevelopersWork

COMMUNITY & SOCIAL

Discord
DiscordpCBUjb8
X
Xdevelopersworkt
Instagram
Instagramdeveloperswork

SUPPORT

Buy Me A Coffee
Buy Me A Coffeedeveloperswork
Patreon
Patreondeveloperswork

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© 2026 VIJAYA GOPINADHREDDY VELAGALA // LVL 05 SPECIALIST

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