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Naeem Ullah
@enaeemullah
Spring Boot Production Rescue: Kafka, Database and Performance Fixes
Pakistan
English, Urdu
About me
Senior Java engineer specializing in Spring Boot production rescue: I diagnose and fix the issues that take systems down — Kafka consumer lag and rebalancing, HikariCP pool exhaustion, database deadlocks, JWT/auth failures, and Spring Batch job crashes. 5+ years building and operating core banking microservices (Java, Spring Boot, Kafka, Redis, PostgreSQL, MySQL), where downtime is not an option. I also build fast, SEO-optimized Next.js sites with proven Core Web Vitals and PageSpeed results. Clear diagnosis first, minimal safe fix second, root-cause explanation always.
Skills
Naeem Ullah
Offline •
See my services
Full Stack Web Applications
I will develop java spring boot microservices and rest apis
Full Stack Web Applications
I will develop a mean stack web application for your business
Portfolio
129 Reviews
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Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
1-5 out of 129 Reviews
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md8566
United States
It’s very hard to convey what you’re looking for. There was really very little creativity. I kept asking for something and he just wasn’t getting it. Its just his level of expertise that’s all. If you need a simple cheap idea, then try it. I personally would not use again.
$50
Price
6 days
Duration
Seller's Response
Helpful?
kelseylane754
United States
Ongoing collaboration
Naeem was very responsive to the changes I needed to have made. I appreciated his communication back and forth until I was satisfied with the result.
$50-$100
Price
8 days
Duration
Seller's Response
Helpful?
pduffy3rd
United States
Ongoing collaboration
Took 5 revisions, most of them were due to small misses like not providing the requested files, small quality issues, uneven spacing, etc. A lot of time and back and forth was needed to get to the final product. I hired another designer to do the same work and they did it with only 2 revisions and higher quality.
$50
Price
13 days
Duration
Seller's Response
Helpful?
kennyking325
United States
Quick & fast
$50
Price
2 days
Duration
Seller's Response
Helpful?
pduffy3rd
United States
Ongoing collaboration
Fast to correct issues and respond to feedback, pleased with the quality of the final delivery! Thank you!
$50
Price
4 days
Duration
Seller's Response
Helpful?
