We are looking for a skilled and reliable freelance developer to support backend feature development and third-party integrations for our cloud-based POS and accounting platform. You will work primarily with NestJS (Node.js) and PostgreSQL, and support API integrations with malls, logistics, and delivery platforms. This role is ideal for someone looking for flexibility while working on real-world, high-impact SaaS projects.

• Build and maintain scalable backend APIs using NestJS / Node.js
• Integrate with 3rd-party platforms: mall scheduler systems, Grab, Foodpanda, Lalamove, eInvoicing
• Collaborate with AWS DevOps team for deployments and performance tuning
• Occasionally support frontend fixes or workflows in React.js
• Write clean, testable code and maintain documentation
• Participate in async planning, code reviews, and handoff discussions

• Backend: Node.js (NestJS), PostgreSQL, TypeORM
• Frontend: React.js, Tailwind CSS
• Cloud & Tools: AWS (ECS, RDS, Lambda, S3), GitHub Actions, Docker
• Integrations: SM/Festival mall schedulers, delivery APIs, BIR/MyInvois e-invoicing

• Minimum 3 years of experience with Node.js / NestJS
• Proven experience with PostgreSQL
• Comfortable with API integrations (REST, webhook, XML/CSV-based)
• Familiarity with AWS (ECS, Lambda, RDS)
• Some working knowledge of React.js
• Strong communication skills and ability to work independently
• Based in the Philippines
• Able to work on flexible hours (with occasional daytime check-ins)

• Experience with mall or logistics/delivery system integrations
• Knowledge of compliance APIs (BIR, Peppol, MyInvois)
• Multi-tenant SaaS or POS system experience
• Prior freelance experience with remote teams

• Contract-based freelance engagement
• Flexible working hours (with results-based accountability)
• Minimum 3-month engagement, renewable based on performance
• Payments via GCash, bank transfer, or Wise
• Retainer or per-module basis negotiable

Please refer to job description.