Senior Full-Stack Architect - SaaS, AI, Scalable Systems

Alasia LLC; Metro Manila; On-site; PHP 1,200,000 - 3,000,000; Full time

Job summary

Alasia LLC is seeking an expert-level Senior Full-Stack Software Engineer to own end-to-end delivery of modern web platforms, SaaS products, and AI-enabled software. You will architect, develop, test, and deploy features across web, mobile, and APIs, collaborating with teams and aligning with business goals.

You should bring 7+ years of experience, strong JS/TS and React/Next.js skills, plus backend fluency in Node.js, .NET, or Python. Cloud and AI tool experience are highly valued.

Qualifications

• 7+ years of professional development experience.
• Broad experience across front-end and back-end stacks listed.
• Experience with REST APIs, JSON, HTTP/HTTPS, OAuth, JWT, webhooks.
• Experience with SQL databases like PostgreSQL/MySQL.
• Experience with mobile development (React Native or Flutter).
• Experience deploying AI-enabled software and integrating AI APIs.

Responsibilities

• Build modern web platforms, SaaS products, mobile apps, APIs, internal systems, and AI-enabled software.
• Take business ideas from concept through architecture, development, testing, deployment and launch.
• Review, debug, secure, and improve code produced by AI-assisted tools.
• Integrate third-party APIs and payment systems.
• Design and implement scalable system architecture.
• Experience deploying AI agents and related infrastructure.

Skills

JavaScript/TypeScript

React/Next.js

Node.js

.NET

Python

Laravel

REST APIs

PostgreSQL MySQL

React Native Flutter

Cloud platforms

Git GitHub CI/CD

Docker

Stripe PayPal payments

AI API integration

AI-assisted development tools

Tools

GitHub Actions

Docker

CI/CD pipelines

Job description

Alasia LLC is seeking an expert-level Senior Full-Stack Software Engineer to own end-to-end delivery of modern web platforms, SaaS products, and AI-enabled software. You will architect, develop, test, and deploy features across web, mobile, and APIs, collaborating with teams and aligning with business goals.

You should bring 7+ years of experience, strong JS/TS and React/Next.js skills, plus backend fluency in Node.js, .NET, or Python. Cloud and AI tool experience are highly valued.