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I will fix react next js API database authentication and web app perfomance issues
Jasmi
About this gig
Is your React platform crashing on login, throwing unhandled serverless runtime errors, or lagging under heavy traffic loads? Broken backend endpoints, leaking security tokens, and sluggish database queries frustrate your users and destroy conversion rates. Don't let minor technical debt stall your project growth.
I offer high-speed, production-ready debugging and systems optimization to restore full system stability.
- Services Offered:
- Resolve Next js API route errors and server functions.
- Repair JWT, OAuth, and database session authentication.
- Repair relational database connection pooling and schema queries.
- Eliminate React hydration, layout shift, and rendering bug.
- Accelerate web performance metrics and serverless response times.
- What is Included:
- Fully optimized, clean codebase repository.
- Deep-dive root cause error analysis report.
- Core web vitals loading speed audit.
- Post-patch security access validation check.
- Why Choose This Gig?
- First-Page Delivery Speeds
- Rapid turnaround workflows.
- Architecture-First Code: Zero sloppy duct-tape fixes.
- Excellent Retention Record: Clean, documented branch commits.
Stop losing traffic to critical site bugs. Send a direct message now.
Get to know Jasmi
Jasmi
Next Gen Full Stack Systems And AI Engineering
- FromNetherlands
- Member sinceJul 2026
- Avg. response time1 hour
Languages
English, Spanish, French, German, Italian, Dutch
Hi, I’m Jasmi, a software engineer specializing in scalable architecture, real-time data sync, and secure AI pipelines. I don't just build features; I craft high-retention digital systems that automate operations and accelerate business growth. From configuring ironclad Supabase databases and Next.js platforms to integrating complex GPT-4 automated chat engines and debugging serverless backend endpoints, I deliver production-ready, clean codebases optimized for speed and security. Let's transform your technical vision into a scalable asset.
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FAQ
What credentials or setup environments do you need to begin fixing my application errors?
To safeguard your cloud environment, you only need to provide access to a staging repository branch, an isolated test database instance, or a secure environmental variable configurations file (.env.example)
Can you resolve complex API connectivity issues linked with external platforms?
Yes. I thoroughly audit the communication architecture between your React frontend, serverless endpoints, and any third-party data providers or external services to trace and resolve data handshake failures.
Will optimizing my platform performance affect live site users or cause deployment downtime?
Never. All codebase troubleshooting, database adjustments, and dependency patches are developed and verified locally or on preview preview environments before migrating changes to your live servers.
Do you offer post-delivery support in case an identified issue reoccurs?
Yes. Every pricing package includes post-delivery maintenance tracking to confirm your updated application runs smoothly under consistent, live network operations.
