Senior Software Developer - PERN & React Native

Job Overview

We're looking for a Senior Full-Stack Developer with deep expertise in the PERN stack (PostgreSQL, Express, React, Node.js) and React Native to lead development on our Point-of-Sale (POS) product for the F&B / Food Services sector, spanning web-based cashier terminals, self-service kiosks, and mobile apps.

Key Responsibilities

• Design, build, and maintain core POS functionality: order taking, table/queue management, kitchen display integration, and payment processing
• Architect and optimize PostgreSQL schemas for high-transaction, multi-outlet/multi-brand environments
• Build responsive React front-ends (web/terminal) and React Native apps (kiosk/mobile), sharing business logic and UX patterns across platforms where practical
• Develop and maintain RESTful APIs using Node.js/Express
• Integrate payment gateways (NETS, PayNow, card terminals), hardware peripherals (printers, scanners, cash drawers), GTM and third-party delivery platforms
• Ensure system reliability for the applications and offline-first/intermittent-connectivity scenarios
• Translate business/product requirements into technical specs, and propose improvements to development quality and performance (libraries, design patterns, reusable components)
• Conduct code reviews, write documentation, and mentor junior/mid-level developers
• Own deployment pipelines and cloud infrastructure (Azure preferred)
• Build and maintain cross-platform mobile/kiosk applications using React Native, covering self-service ordering kiosks and mobile apps for staff/customers

Requirements

• At least 3 years in full-stack development, PERN stack; hands-on React Native experience for mobile/kiosk apps
• Proven experience building or maintaining POS, retail, or F&B management systems
• Strong critical thinking to understand business workflows (order flow, inventory, payments, reporting) and edge cases to translate them into solutions that deliver real business value
• Strong PostgreSQL skills: schema design, query optimization, transactions, data integrity at scale
• RESTful API design and auth/authorization patterns (JWT, OAuth)
• Experience with real-time data sync (WebSockets or similar) for live order/kitchen displays
• Familiarity with payment gateway integrations and cloud deployment/CI-CD (Azure, AWS, or GCP)
• Offline-capable architecture experience (local caching, sync-on-reconnect) recommended
• Strong communication skills to translate business needs into technical solutions
• Exposure to ERP, HRMS, CRM, Inventory, or Project Management systems is a bonus
• Bachelor's in Computer Science, Engineering, or equivalent practical experience preferred - candidates without formal education in these fields are welcome to apply

What We Offer

• Opportunity to lead full product development and make a direct impact.
• Career growth with leadership opportunities.
• Competitive salary and benefits package.

Skills

Communication, Microsoft Azure, systems reliability, POS, F&B Management, RESTful API, Web Caching, PostgreSQL, high transactional, REST APIs development, JavaScript, Workflow Analysis, Translate Into Technical Requirements, Mentoring for Developers, Team Leadership, Business Logic, WebSockets, Software Delivery, Software Development, design database schemas