Flight Log

Journey

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ORIGIN-01 // SYSTEMS-THINK Origins 01 / 13

2018–2021

Building Technical Thinking at UIT

Equipped with foundations in algorithms, computer architecture, and systems thinking — a basis for approaching large-scale problems later.

Computer EngineeringAlgorithmsSystems

Computer Engineering, Vietnam National University HCMC
Focus on systems architecture and algorithms
Started learning web programming through BTEC FPT

ORIGIN-02 // PRACTICAL-BRIDGE Origins 02 / 13

2021–2022

Approaching Real-World Environment

Joined practical projects, transitioning from theory to software-development processes and teamwork.

Software EngineeringTeamwork

Software Engineering — BTEC FPT
Delivered team projects following standard processes
A stepping stone to the first professional job

FORGE-01 // FIRST-USERS Forge 03 / 13

2022

First Product Development Project

Got familiar with on-chain data, wrote technical documentation, and directly received feedback to improve user experience.

ReactJSOn-chainUI/UX

Built ReactJS interfaces for crypto and e-learning platforms
Processed API data and authored technical content
Improved UI/UX based on user behavior

FORGE-02 // 3D-SHIP Forge 04 / 13

2022–2023

Participated in 3D SaaS Development

Took on a full-stack role, learning to transform business requirements into solutions through 3D web graphics.

Three.jsNestJSFull-StackDocker

Used NestJS, Vue, Three.js, and Docker
Built 3D instruction tools for manufacturing engineers
Designed backend APIs following business workflows from blueprints

FORGE-03 // SIDE-QUESTS Forge 05 / 13

2022–2023

Learning Through Personal Projects

Tried personal projects to directly engage with authentication, payment, and system-administration challenges.

Next.jsBillingOwnership

Built a course platform (Next.js, NestJS, MongoDB)
Integrated SMS OTP login for the MyReview project
Learned end-to-end product development

FORGE-04 // REMOTE-SHIP Forge 06 / 13

2022–2023

Remote Collaboration (Remote Developer)

Worked remotely with international teams, developing flexible bug handling and feedback-driven upgrades.

Vue.jsRemoteHealthcare

Worked with NestJS, Vue.js in a Docker environment
Handled bugs and shipped features quickly
Improved asynchronous collaboration with a European team

TRANSIT-01 // SCALE-UP Systems 07 / 13

2023-06

Approaching Enterprise Architecture

Joined MarketEnterprise, moving from a small team to large-scale systems for a Japanese reCommerce group — putting sustainability first.

TransitionMonorepoEnterprise

Got familiar with NX Monorepo and microservices architecture
Used professional multi-environment CI/CD
Shifted mindset from 'completing features' to 'maintainable and scalable'

SYSTEMS-01 // STRANGLER Systems 08 / 13

2023–2024

Restructuring the reCommerce Platform

Decomposed a large used-goods trading monolith into independent services, letting teams ship without accumulating coupling.

NXMicroservicesAWSJapan

Deployed NestJS microservices on a Monorepo architecture
Optimized database and system operations on AWS
Applied event-driven architecture for the notification system

SYSTEMS-02 // EVENT-BUS Systems 09 / 13

2023–2024

Event-Driven Communication Automation

Developed communication-automation tools, synchronizing multi-source data for internal operations.

Event-DrivenSAMWebhooks

Applied AWS SAM, Lambda, and EventBridge
Connected APIs and webhooks with multiple platforms (SMS, Line, Slack)
Built an operator control dashboard

INTEL-01 // RAG-FIRST Intelligence 10 / 13

2024

Applying AI Internally

Integrated LLMs to build an internal technical-document search tool — first asking 'how do we keep the AI from making things up'.

RAGEmbeddingsLocal LLM

Used RAG and embeddings for data extraction
Deployed a model locally for information security
Minimized AI hallucination

INTEL-02 // GUARDRAILS Intelligence 11 / 13

2024–present

Production AI with Deterministic Guardrails

Put AI pipelines into real systems — multi-agent, voice analytics, security review — with one principle: wrap probabilistic models in deterministic guardrails and treat cost as a design constraint.

LangGraphGuardrailsCostObservability

LangGraph multi-agent + structured output, treating the LLM as untrusted
SageMaker async cuts idle GPU; a pure-code proof gate for security verdicts
Observability (X-Ray) and cost control on the request path

FOUNDER-01 // PROVE-IT Horizon 12 / 13

2025–present

Founded Valixara

Solo-founded a company on a single thesis: AI that acts must prove what it did. One primitive — a tamper-evident record of autonomous action — shown at the design, implementation, and product levels.

ValixaraFounderRustVerifiable AI

Local-first desktop cockpit (Rust + Tauri 2, 96 native commands) with a hash-chained ledger anchored to observed effects
Project-Intelligence OS: RAG + knowledge graph with an immutable audit trail (Postgres + pgvector, HNSW)
Founder & CEO — setting product direction while serving as principal engineer

HORIZON-01 // PROVE-AT-SCALE Horizon 13 / 13

2026+

Verifiable AI at Scale

Keep building Valixara while sharpening architecture and language, toward provable, secure-by-design AI solutions across borders.

AI ArchitectureFounderJP N3+

Extend the verifiable-AI primitive to enterprise RAG and agent orchestration
Raise secure-by-design SDLC standards and cloud cost control
Target JLPT N3+ for more effective collaboration with Japanese partners

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