1^st lesson free

Mazin

5 (4 reviews)

Rate S$45
Response 1h

5 (4 reviews)

S$45/h

1^st lesson free

Senior SQL Server DBA | 20 Years of Production Experience | DBA Mentoring | Performance Tuning & SQL Server Production Troubleshooting

Lesson location

- online

About Mazin

I am a Senior SQL Server Database Administrator with 20 years of professional experience, working with SQL Server since 2006. I have extensive hands-on experience supporting enterprise and business-critical production database environments.
My professional experience includes SQL Server administration, performance tuning, backup and recovery, security, high availability, monitoring, maintenance, and troubleshooting real production incidents.
Over the years, I have worked with large SQL Server environments and complex production issues, giving me practical experience that goes far beyond textbook knowledge.
I enjoy sharing this real-world experience with students, IT professionals, developers, and junior DBAs who want to build strong SQL Server skills or advance their DBA careers.
You don't need to take a complete SQL Server course. If you need help with a specific topic or problem, you can book an individual session for SQL Server troubleshooting, performance tuning, DBA mentoring, interview preparation, backup and recovery, Always On Availability Groups, security, or other SQL Server topics.
My teaching style is practical, structured, and easy to follow. My goal is to help students understand not only how SQL Server works, but also how experienced DBAs investigate problems, make decisions, and troubleshoot SQL Server in real production environments.
Not sure where to start? I offer a free initial SQL Server skills assessment to understand your current level, goals, and areas for improvement, and then recommend the most suitable learning path.

About the lesson

Every student has different goals, so I tailor my lessons to your experience, current challenges, and objectives. You do not need to commit to a complete course — you can book focused sessions for a specific SQL Server topic or follow a structured learning path.
Need help with a specific SQL Server problem or topic?
Book a focused 1–2 hour session for SQL Server troubleshooting, performance tuning, blocking, deadlocks, backup and recovery, Always On Availability Groups, security, query performance, or another SQL Server topic. We will focus directly on the area where you need help.
Preparing for an interview or looking for focused mentoring?
I can create a short, personalized learning plan based on your current experience, the position you are targeting, and the areas you need to strengthen.
Want to become a SQL Server DBA?
We can follow a structured learning path covering SQL development, SQL Server administration, backup and recovery, security, performance tuning, query optimization, and real-world production troubleshooting.
My lessons combine clear explanations with hands-on labs, SQL scripts, practical demonstrations, and scenarios based on real production environments. Rather than simply memorizing commands, you will learn how experienced DBAs investigate problems, analyze root causes, make decisions, and apply the appropriate solution.
I can help you if you want to:
• Become a SQL Server DBA
• Prepare for SQL Server DBA interviews
• Solve a specific SQL Server problem
• Improve SQL Server performance
• Troubleshoot production issues
• Strengthen your SQL Server administration skills
• Improve your SQL development knowledge
• Gain confidence working with SQL Server in real-world environments
What to expect from your free first lesson
Your complimentary first lesson is a SQL Server Assessment & Roadmap Session. We will discuss your current SQL Server knowledge and experience, understand your goals, identify areas for improvement, and determine the most suitable next step.
Depending on your needs, that could be a focused 1–2 hour session, a short mentoring plan, interview preparation, or a complete structured SQL Server DBA learning path.

Recommendations

Recommendations come from relatives, friends and acquaintances of the tutor

S

Sara

Mazin is patient, organized, and very good at explaining technical concepts clearly. His extensive SQL Server experience and practical approach make him an excellent instructor
Read more

S
Sara
Mazin is patient, organized, and very good at explaining technical concepts clearly. His extensive SQL Server experience and practical approach make him an excellent instructor
H

Hashim

I have had the opportunity to see Mazin troubleshoot production SQL Server issues with confidence, professionalism, and a methodical approach. His strong practical experience and deep technical knowledge enable him to resolve complex problems efficiently. He is also an excellent mentor, consistently willing to share his expertise and guide others in developing their SQL Server skills.
Read more

H
Hashim
I have had the opportunity to see Mazin troubleshoot production SQL Server issues with confidence, professionalism, and a methodical approach. His strong practical experience and deep technical knowledge enable him to resolve complex problems efficiently. He is also an excellent mentor, consistently willing to share his expertise and guide others in developing their SQL Server skills.
K

Kalyan

I’ve worked with Mazin for several years on SQL server in Production environments.
His Ability is to learn new things and applies feedback to improve performance. And he breaks complex problems into clear, manageable steps.
Also, he takes on new tasks outside their usual scope and adjusts priorities when business needs to shift. And mostly, he handles uncertainty without losing effectiveness.
Read more

K
Kalyan
I’ve worked with Mazin for several years on SQL server in Production environments.
His Ability is to learn new things and applies feedback to improve performance. And he breaks complex problems into clear, manageable steps.
Also, he takes on new tasks outside their usual scope and adjusts priorities when business needs to shift. And mostly, he handles uncertainty without losing effectiveness.
D

Dhana

Over the past several years, I’ve worked with Mazin in SQL Server production settings. His troubleshooting skills are excellent, he explains complex ideas clearly, and he’s genuinely helpful when others need guidance on SQL Server administration and performance tuning. I would highly recommend him.
Read more

D
Dhana
Over the past several years, I’ve worked with Mazin in SQL Server production settings. His troubleshooting skills are excellent, he explains complex ideas clearly, and he’s genuinely helpful when others need guidance on SQL Server administration and performance tuning. I would highly recommend him.
View more recommendations

Rates

Rate

S$45

Pack rates

5h: S$224
10h: S$448

free lessons

This first lesson is free to allow you to get to know your teacher so that they can best meet your needs.

online

S$45/h

Senior SQL Server DBA | 20 Years of Production Experience | DBA Mentoring | Performance Tuning & SQL Server Production Troubleshooting

Lesson location

Recommended

About Mazin

About the lesson

Recommendations

Rates

Rate

Pack rates

free lessons

online

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Senior SQL Server DBA | 20 Years of Production Experience | DBA Mentoring | Performance Tuning & SQL Server Production Troubleshooting

Lesson location

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About Mazin

About the lesson

Recommendations

Rates

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Pack rates

free lessons

online

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Graduated from nus computer engineering. i am currently working as full-time data analyst while studying part-time masters in computer science. i taught students age 4-18 programming related classes.

Top 20 graduated with merit of local polytechnic, current computer science student in ntu, multiple certificates on github. parents do feel free to contact me if you want your kids to ace in computing

First-class computer science graduate & working data engineer | more than 5 years of coding experience

University of sydney (bachelor's) & smu (master's) grad. merging computer science fundamentals with practical coding skills. flexible plans for all levels!

I have 3+ years of programming experience. i've done several projects and competitive programming as well. decent at data structure and algorithms.

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Graduate from nus with a bachelor’s in data science and analytics, various experiences in different fields such as edutech, fintech, marketing, consulting and finance companies in singapore, france an

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