AI Integration & LLM Pipelines
Integrate large language models, RAG pipelines, and Semantic Kernel frameworks directly into your existing products. From intelligent search to automated data processing — practical AI that ships, not demos.
Available for New Projects
Turn Legacy Systems into Intelligent Platforms
Senior AI & Fullstack Architect with 7 years building enterprise-grade solutions — specializing in LLM integration, RAG pipelines, .NET modernization, and secure Azure cloud infrastructure for Japanese and international clients.
JLPT N3 CertifiedISMS Certified7+ Years Enterprise
MVP Award — Cowell-Asia 2021
Top performer recognition
7+
Years of Experience
Enterprise & Startup Projects
3
Core Specializations
AI Integration · Cloud · Security
N3
Japanese Proficiency
Direct communication with JP clients
MVP
Award — Cowell-Asia 2021
Top performer recognition
What I Help You Build
Legacy System Modernization
Migrate aging PHP or monolithic codebases into high-performance .NET/C# architectures with zero-downtime API synchronization. Your users won't feel a thing — your engineering team will.
Secure Cloud Architecture on Azure
Design and deploy enterprise-grade Azure infrastructures: virtual networks, server hardening, IAM configuration, and image deployments. Built with security-first principles informed by real penetration testing research.
Fullstack Feature Development
End-to-end feature delivery across Vue.js / React frontends and .NET / Laravel backends. From recruitment platforms to hospital management systems — complex domains, clean code.
How We Work Together
1
Free 30-Min Discovery Call
We map your current system, identify bottlenecks, and determine whether AI integration, modernization, or cloud hardening is the highest-leverage move for your business right now.
2
Solution Architecture & Proposal
I deliver a clear technical roadmap: scope, stack recommendations, timeline, and investment. No vague estimates — everything is broken down to deliverable milestones.
3
Build, Integrate & Handover
Execution with full transparency. Weekly progress updates, clean documentation, and a structured knowledge transfer so your team owns what we build — not just the output.
Selected Projects
Real problems. Real solutions. Verifiable outcomes.
Vue 3 + TypeScript · Enterprise-scale · JP market
Recruitment Social Network — Japanese Market
Challenge
Client needed a responsive, high-performance recruitment platform with complex management dashboards tailored for the Japanese hiring workflow.
Result
Delivered full frontend architecture using Vue 3 with TypeScript. Dashboard reduced recruiter task time significantly and became the platform's core differentiator with Japanese enterprise clients.
.NET/C# · Zero-downtime · Full API sync
Legacy PHP → .NET Migration — Enterprise Client
Challenge
A large legacy PHP system had become unmaintainable — deployment risk was high, performance was degrading, and the team couldn't ship features fast enough.
Result
Led full migration to .NET/C# with parallel API synchronization strategy. Zero downtime during cutover. Post-migration, deployment cycles accelerated and system stability improved dramatically.
Vue.js · Laravel · C# · Multi-facility
Hospital & Elderly Care Management Platform
Challenge
Healthcare operator managing multiple facilities needed a unified web platform covering food ordering, patient management, and staff workflows across locations.
Result
Built and maintained the platform using Vue.js, Laravel, and C#. System now supports daily operations across hospital chains and elderly care networks with high reliability requirements.
Tech Stack
.NET / C#
Primary backend for enterprise-grade applications
Vue.js / React / TypeScript
Modern, component-driven frontend development
Azure & AWS
Cloud infrastructure, networking, IAM, deployments
LLM · RAG · Semantic Kernel
Practical AI integration beyond the prototype stage
Laravel / PHP
Rapid API development and legacy system expertise
SQL Server · MySQL · Linux
Complex data migrations and database architecture
What Clients & Colleagues Say
“Tien has a rare combination of deep technical skill and the ability to communicate clearly with non-technical stakeholders. The AI pipeline he architected reduced our manual data processing time by over 60% — and the documentation he left behind meant our team could maintain it from day one.”
Yamamoto Kenji
CTO, Mid-size SaaS Company — Tokyo, Japan
“We hired Tien to modernize a PHP system that had been slowing us down for years. He delivered a .NET migration with zero downtime and a clear handover plan. What impressed us most was that he pushed back when our timeline was unrealistic — and he was right.”
Trần Minh Khoa
Head of Engineering, Vietnamese Fintech Startup
“His Azure setup for our enterprise client was thorough and security-first from the ground up. Penetration testing concepts applied to real infrastructure — not just checkbox compliance. Would work with him again without hesitation.”
Nguyễn Thị Lan Anh
Project Manager, Cowell-Asia
Frequently Asked Questions
What types of projects do you typically take on?
I focus on three areas: (1) integrating AI/LLM capabilities into existing products, (2) modernizing legacy systems to modern .NET or cloud-based architectures, and (3) designing or hardening Azure/AWS cloud infrastructure. Projects are typically 1–6 months depending on scope.
Do you work remotely or on-site?
Fully remote by default. I work effectively with distributed teams across Vietnam, Japan, and internationally. For clients in Hanoi or Bac Ninh, occasional on-site collaboration is possible if needed.
Can you communicate directly with Japanese clients or teams?
Yes — I hold JLPT N3 certification and have 5+ years of professional experience working within Japanese corporate environments at Cowell-Asia. I understand both the language and the business communication style.
What does the free consultation actually cover?
In 30 minutes, we cover: your current system architecture and pain points, where AI or modernization would have the highest impact, and a rough sense of scope and timeline. You leave with clarity — no sales pitch, no obligation.
Are you available for full-time roles?
I'm open to strategic senior or lead roles that align with my expertise in AI integration and cloud architecture. The best way to start that conversation is the same — book a call and let's talk.
How do you handle security and data confidentiality?
I hold an ISMS certification and apply security-first principles across all engagements — from IAM configuration to penetration testing concepts applied to real infrastructure. NDAs are standard and I'm comfortable with enterprise compliance requirements.