Senior Full-Stack Developer

Location

Philippines

Posted

25 days ago

Salary

0

Seniority

Senior

Job Description

Senior Full-Stack Developer

Quantum Electronic Payments

Role Description We're seeking an experienced Senior Full-Stack Developer for a long-term, full-time remote role. Applicants must be currently based in the Philippines. In this role, you'll join our engineering team working on a mission-critical payment processing platform. You'll be responsible for developing, maintaining, and scaling features across our multi-tenant Laravel monolith that processes millions in transactions annually. - Design, develop, and maintain full-stack features across Atlas, Merchant Dashboard, and payment processing systems - Implement secure payment workflows, ACH processing, and financial transaction logic - Build responsive merchant onboarding applications with complex underwriting rules - Optimize database queries and payment processing performance for high-volume transactions - Collaborate with product managers, compliance teams, and payment processors - Participate in code reviews and mentor developers on payment industry best practices - Contribute to PCI DSS compliance and security implementations - Work with legacy systems (Vue 2) while modernizing to React/Inertia.js Qualifications - Strong PHP/Laravel Expertise: 4+ years PHP development, 2+ years Laravel (Laravel 10+ preferred) - Payment Processing Experience: Understanding of payment gateways, ACH, PCI DSS, financial transactions - Database Design: Complex Eloquent relationships, query optimization for financial data - Frontend Development: React proficiency, Vue.js experience, Inertia.js knowledge - Security-First Mindset: Experience with financial data handling, encryption, compliance - API Development: RESTful API design, OAuth2 implementation, webhook handling - Testing: PHPUnit for backend, Dusk for end-to-end testing Requirements - Experience with payment processing platforms or fintech - Knowledge of ACH networks, chargeback processes, underwriting - Multi-tenant application architecture - Legacy system modernization (Vue 2 to React) - Docker containerization and deployment - AWS services (S3, SES, etc.) - Real-time features with Pusher/Socket.io - PDF generation, document processing - International payment processing Soft Skills - Strong analytical skills for complex business logic - Experience working in regulated environments - Ability to handle sensitive financial data responsibly - Collaborative team player with cross-functional experience - Passion for building reliable, secure financial systems Education & Experience - Bachelor's degree in Computer Science, Software Engineering, or related field - 4+ years professional software development experience - Experience with high-stakes, mission-critical applications - Background in fintech, payments, or financial services preferred Eligibility Requirements - Must be based in the Philippines - Must be available for full-time, long-term work - Comfortable working as an independent contractor - Reliable internet and remote work setup

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