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Koushik
@koushiksarke
Level 1
Expert Software Engineer, Full Stack developer
Bangladesh
English, Bengali
About me
With 5+ years of experience in Java, Spring Boot, and Microservices, specializing in secure, scalable web applications. Skilled in Angular, ReactJS, and Next.js, delivering seamless frontend and backend solutions. I ensure clean code, optimized performance, and exceptional user experiences with robust authentication, efficient data management, high-performance messaging, and scalable storage. Let’s bring your project to life—contact me today!
Skills
Koushik
$10/hour
Offline •
Average response time: 1 hour
See my services
Bug Fixes
I will fix bugs in java, spring boot, maven and gradle
API & Integrations
I will be your expert java spring boot developer for rest API and microservices
Want to work on an hourly basis?
Tell Koushik what you need.
$10
/
hourPortfolio
35 Reviews
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
1-5 out of 35 Reviews
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Most relevant
wafaewafoua
Repeat Client
United Kingdom
The collaboration was excellent, and he demonstrated great professionalism
Helpful?
arpanvirk04
Canada
Delivered exactly what I needed — a full Spring Boot Auth + Gateway setup with JWT, MongoDB, and role-based access. Clean code, professional communication, and everything worked perfectly. Highly recommended!
Helpful?
fjed062
Poland
Great experience! The seller quickly found and fixed the issue in my Spring Boot + Thymeleaf project. Clear communication, fast delivery, and professional approach. Highly recommended!
Helpful?
alikhanvisram
Portugal
Very responsive and knowledgeable, helped me diagnose the problem and offered solid next steps
Helpful?
wafaewafoua
Repeat Client
United Kingdom
I had a great experience working with this freelancer. The final project was completely bug-free and worked exactly as expected. He is also provided clear and well-structured documentation, which made it very easy for me to understand and maintain the code. The delivery was right on time, even a little...
Helpful?
