10-Yr Full-Stack SaaS Architect | SaaS & Microservices Expert & AI Development
Hello, I am Oscar, a senior full-stack architect with 10 years of experience specializing in production-grade SaaS applications and AI-driven solutions. Over my career, I have served as a Backend Manager at a global digital agency and a Web Tech Lead at high-growth tech startups. I bring "one-man-army" engineering capabilities to your project, helping founders slash average R&D time by 66.7% and accelerate product delivery by 60%. 🌐 Language Advantage: Fully bilingual. I collaborate seamlessly with Western teams in fluent English and communicate flawlessly in native Chinese (Mandarin/Simplified/Traditional). 🛠️ Core Expertise:SaaS & Multi-Tenancy: Proven track record maintaining a multi-tenant SaaS platform supporting 40+ vendors on a single codebase with 99.9% uptime. Expert in PHP (Laravel) and NodeJS (Express, NuxtJS). AI & Automation: Deep integration of LLM/AI workflows, AI-assisted coding, and automated DevOps pipelines (AWS, Docker, CI/CD). Performance & Security: Expert in high-concurrency (1,000+ users), optimizing API latency by 50%, and OWASP Top 10 penetration testing. Stability: Building E2E automated testing frameworks that cut system error rates by 90%. With a strong product mindset, I don't just write code—I build scalable businesses. I work best as a long-term technical partner — whether that's building your SaaS from idea to scale, rescuing and modernizing an existing platform, or owning production stability as your ongoing engineer. I don't disappear after launch. Let's turn your SaaS or AI vision into a secure, high-performance reality. Click Contact to get started!
Work Terms
To ensure a highly efficient, high-quality, and transparent collaboration, I provide the following structured working terms:【Asynchronous & Focused Communication】
To maximize dedicated, uninterrupted development time for your project, I utilize asynchronous communication via Slack, WhatsApp, or the platform messenger. Technical and business discussions can be conducted entirely in English or Chinese. I actively check messages and will provide regular, structured progress updates. 【Result-Oriented Milestone Delivery】
I operate strictly on a value-driven, milestone-based delivery model rather than hourly logging. My 10 years of architecture experience guarantee that project success is measured by concrete results, high-quality code, and secure deployments delivered at each agreed-upon stage. 【Pre-Defined Acceptance Criteria】Prior to commencing development, we will collaborative define and lock in the Acceptance Criteria (Definition of Done) and the payment schedule for each phase. This ensures absolute alignment, clear expectations, and a smooth review process for final delivery.【Milestone Funding & Project Kickoff】Projects are officially initiated upon the funding and activation of the Initial Milestone Deposit. All subsequent payments are released sequentially upon your review and successful verification of each completed milestone.【Warranty & IP Transfer】I provide a 14-day complimentary QA warranty period post-delivery to handle any technical bugs within the original project scope. Upon final milestone release, 100% intellectual property rights and full source code (with clean Git history) will be fully transferred to you.