Senior Laravel Production Engineer — Critical System Recovery, Financial Logic (Escrow & Ledger), Stripe Integration, Performance & Scaling

Live System

https://erosstream.com.br/

Current Stage

The platform is already built and running in production, with:

Laravel backend (MySQL + Redis)
Payment integrations implemented (partially functional)
Token system in place
Admin panel available
Frontend completed

However, based on the attached audit reports, the system is:

Structurally complete, but not fully functional
Some modules are partially implemented
Some flows do not work correctly in real production

The reports clearly identify issues such as:

Incomplete financial logic (ledger inconsistencies)
Escrow lifecycle not fully implemented
Subscription logic incomplete
Boost system not working correctly
Security gaps in admin/financial routes
Project Objective

The goal is straightforward:

Make the existing system fully functional, stable, optimized, and ready for real production use.

This includes:

Fixing broken logic
Completing incomplete modules
Ensuring consistency across all flows
Improving performance
Applying necessary design refinements
Preparing infrastructure for scalability
Scope Overview (Simplified)

The work focuses on stabilizing and completing what already exists:

Backend & Financial Logic
Fix ledger consistency and token purchase flow
Complete escrow lifecycle (no double release, correct states)
Complete subscription system logic
Fix and complete boost system behavior
Validate revenue split logic
System Integrity & Security
Align database structure with backend logic
Secure admin and financial routes
Ensure all flows are consistent and auditable
Performance & Optimization
Optimize queries, Redis usage, and caching
Improve overall system responsiveness
Ensure stability under real usage
Autoscaling & Production Readiness
Prepare system for autoscaling (AWS or equivalent)
Ensure stateless behavior where required
Validate readiness for concurrent users
UI / Design Improvements (Light Scope)
Fix visual inconsistencies
Improve overall UI polish (no redesign)
Important Clarification

This is not about adding new features.

It is about:

Completing and fixing existing functionality so the system works correctly in real conditions.

If something exists but does not work properly, it must be corrected.

What is NOT included
No system rebuild
No new architecture
No full frontend redesign
Expected Result

At the end of the project, the system must:

Work correctly in real production conditions
Have all main flows functional end-to-end
Be stable, optimized, and secure
Be ready to scale without manual intervention
Present a clean and consistent user experience
Validation (Simple Requirement)

Before completion, the following must be demonstrated:

Token purchase working correctly
Escrow flow working (create → complete → release)
Subscription flow working
Boost functioning correctly
Revenue logic consistent
Admin panel reflecting real data
System stability under usage

A short video demonstration is required, along with a final validation summary.

Timeline

Up to 7 business days

Who Should Apply

Only developers with real experience in:

Laravel backend
Payment systems (Stripe or similar)
Financial logic / escrow
Production debugging
Performance optimization
Basic infrastructure scaling
Proposal Requirement

Please include:

Confirmation that you reviewed the live system
A short explanation of your approach
Final Note

This is a focused execution project.

The system already exists.

The goal is to make it fully functional, optimized, and production-ready.