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$
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I will do db query design migration mysql postgresql sql server
Code Mentor, Build secure softwares, Biz apps, AI apps
An experienced software engineer with 5+ years experience writing clean code that have drive success for my team and employer. Skill in Java, Python, C#, ASP.Net Core, Laravel, Flutter, Android, SQL, ...
Level 2
Has met high performance criteria and has a proven track record for meeting client expectations.
About this Gig
Need a database expert for SQL & NoSQL? I design, optimize, and migrate databases for MySQL, PostgreSQL, SQL Server, Oracle, MongoDB, Cassandra, Firebase, Supabase, DynamoDB, and Redis with clean, high-performing queries and efficient schema design.
See Gig Gallery for course outline for: PRACTICAL SQL PATH IN A WORLD OF AUTOMATION AND AI.
Modern engineering practices, quality code with Claude, OpenClaw AI, testing, APIs Integration, databases, and deployment.
- Database design, normalization, and schema modeling
- Complex SQL queries, joins, stored procedures, and triggers
- Data migration between SQL NoSQL
- Query optimization and performance tuning
- ORM, ETL, data integration, and indexing strategies
- Setup and configuration for MySQL, PostgreSQL, SQL Server, MongoDB, etc.
Whether its a relational or document-based database, Ill help you build a scalable, fast, and reliable data layer for your app.
Lets build your database right the first time!
Platform:
Elasticsearch
•
MySQL
•
PostgreSQL
•
SQL Server
Expertise:
SQL
•
NoSQL
•
Performance
•
Query optimization
My Portfolio
FAQ
Do you offer Consultation? I have a special need.
yes we do. Send us a DM.
Reviews
5 reviews for this Gig
| (3) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
J 
jecynthia82
Repeat Client
United States
Another successful project!! Pristine with no mistakes!! Thank you so much!!
Up to $50
Price
2 days
Duration
C 
Seller's Response
Helpful?J jecynthia82
Repeat Client
United States
Exceptional customer service, very clear and elaborate in explaining. Fast, effective and reliable.
Up to $50
Price
1 day
Duration
C Seller's Response
Helpful?K kalrehman
United Kingdom
Not worth my time and doesnt listen any way and wouldnt accept a partial refund
$50-$100
Price
1 day
Duration
C Seller's Response
Helpful?L 
lacunastrategy
United States
I did not have the bandwidth to take full advantage of the offered services, but received his full attention and willingness to provide feedback and any necessary SQL queries to improve the build.
Up to $50
Price
3 weeks
Duration
C Seller's Response
Helpful?L love_linness08
United States
Wonderful software engineer to work with. Patience and understanding. He took the time to teach and work with me learning SQL. Would highly recommend!
Up to $50
Price
1 day
Duration
C Seller's Response
Helpful?
Reviews
5 reviews for this Gig
| (3) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
J jecynthia82
Repeat Client
United States
Another successful project!! Pristine with no mistakes!! Thank you so much!!
Up to $50
Price
2 days
Duration
C Seller's Response
Helpful?J jecynthia82
Repeat Client
United States
Exceptional customer service, very clear and elaborate in explaining. Fast, effective and reliable.
Up to $50
Price
1 day
Duration
C Seller's Response
Helpful?K kalrehman
United Kingdom
Not worth my time and doesnt listen any way and wouldnt accept a partial refund
$50-$100
Price
1 day
Duration
C Seller's Response
Helpful?L lacunastrategy
United States
I did not have the bandwidth to take full advantage of the offered services, but received his full attention and willingness to provide feedback and any necessary SQL queries to improve the build.
Up to $50
Price
3 weeks
Duration
C Seller's Response
Helpful?L love_linness08
United States
Wonderful software engineer to work with. Patience and understanding. He took the time to teach and work with me learning SQL. Would highly recommend!
Up to $50
Price
1 day
Duration
C Seller's Response
Helpful?
