Vivek Johari

About Vivek Johari

Great systems are built on great data and great data starts with great SQL.”For over 18 years, I’ve dedicated my career to designing high-performance data systems, elevating database architecture, and mentoring developers across the world on SQL Server, data engineering, AI, and real-world optimization strategies.I wear multiple hats - Database Architect, Performance Tuning Expert, Technical Lead, Educator, AI/ML Writer, and Founder of TechMixing.com, one of the leading SQL learning platforms.Key strengths and expertise include:I specialize in transforming slow, complex, and costly data systems into fast, scalable, and intelligent architectures through:• Query Optimization & Execution Plan Mastery• SQL Server Performance Tuning• Database Architecture & Migration Strategy• AI & Data Science–Driven Analysis• Python for Data Automation• Technical Writing, Blogging & Developer Mentorship• Cloud Data Solutions (Azure SQL, cloud migrations)What Makes My Work UniqueI simplify complex technical topics — SQL, AI, machine learning, Python, database internals — into content that developers can understand and apply instantly.My blogs and tutorials have helped thousands of developers avoid design pitfalls, fix performance bottlenecks, and level up their SQL + AI skills.Founder of TechMixing.comAt TechMixing, I share deep-dive tutorials on:• SQL Server fundamentals• Query optimization• Database architecture• AI/ML concepts for developers• Python data workflows• Real-world performance tuning case studiesMy MissionTo mentor the next generation of data professionals and empower teams to build systems that are not just functional — but intelligent, scalable, and exceptionally fast.If you\'re passionate about SQL, AI, data engineering, performance tuning, or simply want to talk about data systems, I\'d love to connect with you. Feel free to reach out to me at v••••••••@gmail.com

Experience

1. Technical Lead

   Johnson Controls

   Oct 2021 — Present · Gurugram, IN

   Enhanced Database Performance: Achieved significant improvements in database performance and SQL integrity through targeted optimization and query tuning strategies. Strategic SQL Migration: Spearheaded the migration of SQL base versions, playing a crucial role in the evolution and scalability of applications. Best Practices Implementation: Established and enforced database best practices, successfully managing complex SQL challenges and guiding the team through technical hurdles. Repository Ownership: Oversaw the review and merging of all database scripts as the repository owner, ensuring adherence to best practices and maintaining high standards in database management.

Education

• Guru Gobind Singh Indraprastha University

  MCA, Computers

  2003 — 2006

• S.B.M Sr.Sec.School

  4th to 12th

  1991 — 2000

• Indian Institute of Technology, Delhi

  Certification, Data Science and Machine Learning

• Delhi University

  Bsc(Hons) Mathematics, Mathematics

  2000 — 2003

Skills

• Software Development
• Asp
• Mysql
• Unix
• Ajax
• Android Development
• Business Intelligence
• Ant
• Agile Methodologies
• Toad
• Design Patterns
• Application Development
• Html
• Xml
• Database Design
• Databases
• Sqlite
• Oracle
• Jquery
• Database Migration
• Database Optimization
• Web Applications
• Oracle Dba
• Oracle Sql
• Ado.net
• Web Services
• Microsoft Sql Server
• Linq
• Hudson
• Sql
• Ssis
• Asp.net
• Apache Tomcat
• Jira
• Ssrs
• Oracle Sql Developer
• C#
• .net
• Mysql Maestro
• Javascript