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For Recruiters & Collaborators

Hello —
I'm Rei Reltroner (Raidan Sandra), a backend engineer focused on building modular, production-ready systems with clear boundaries and long-term maintainability.

This page provides a concise overview of how I work, what I’ve built, and where I can contribute effectively.

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Fast Professional Overview

Primary Focus
Backend engineering, modular ERP-style systems, authentication flows, and system integrity.

Core Strengths

• Turning ambiguous requirements into structured implementations
• Designing modular Laravel systems with clear service separation
• Implementing authentication flows (SSO, JWT, RBAC)
• Building automated test suites for financial and transactional integrity
• Debugging production issues with calm, methodical analysis

Best Fit

• Backend or platform-oriented roles
• SaaS / SME tech companies
• Internal product teams requiring ownership and long-term system stability

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Professional Approach

I focus on building systems that are:

• Modular and boundary-aware
• Test-backed and deployment-ready
• Operationally reliable
• Designed to evolve safely over time

My experience includes:

• Laravel-based modular ERP systems (Gateway, HRM, Finance)
• REST API design and inter-service communication
• Centralized SSO authentication (OIDC, JWT-based access control)
• Financial reporting modules (Balance Sheet, Profit & Loss)
• Snapshot-based reporting and transaction integrity controls
• CI/CD pipelines using GitHub Actions
• Structured technical documentation and failure logs

I prioritize clarity over complexity and long-term stability over short-term shortcuts.

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Project Highlight — Reltroner ERP Platform

Role: Backend Engineer (Independent Project)
Stack: Laravel 12, PHP 8.2+, MySQL, Keycloak (OIDC), GitHub Actions
Year: 2025

A modular ERP system composed of three independent Laravel applications (Gateway, HRM, Finance) with centralized authentication.

System Scope:

• 3 independent repositories
• 150+ automated tests (unit, feature, regression)
• 100+ database migrations
• Financial reporting modules with transaction immutability and snapshot validation

Live HRM Demo: hrm.reltroner.com

Gateway Repository: github.com/Reltroner/reltroner-app-main

Finance Repository: github.com/Reltroner/finance-reltroner

Error Documentation: github.com/Reltroner/error-documentation

Progress Documentation: github.com/Reltroner/progress-documentation

This project demonstrates full lifecycle ownership — from database schema design and backend logic to CI/CD automation and production deployment.

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Curriculum Vitae

You can view my full CV here:

📄 CV (Canva):
Raidan Sandra CV

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Availability

I’m currently open to:

• Backend Engineer roles (Laravel / PHP)
• Fullstack roles with backend focus
• SaaS or internal product teams
• Remote-friendly environments

Contact:

📧 studio@reltroner.com 🌐 reltroner.com
💻 https://github.com/Reltroner