</>longpham.tech
Solution Architect · 13+ years · multi-domain

Architecting resilient systems across seven domains.

I turn ambiguous business problems into pragmatic architectures: clear boundaries, defensible trade-offs and systems that scale without over-engineering. Below are real platforms I've architected and shipped across seven domains.

Explore case studies View resume
0+
Years experience
0+
Projects shipped
0+
Domains
0+
Clients
PHP 8.2Laravel 11PassportMongoDB 7.0PostgreSQL 16Redis 5Nuxt 3Nuxt 4 + TurborepoVue 3PrimeVueChart.jsDocker ComposeAWS EC2 + S3TraefikSupervisorGitHub ActionsSentryAWS LambdaEFS dependency preloadMongoDBAWS S3scikit-learnscipypandasAWS SageMaker endpointAPI GatewayPoetry + DockerloguruPHP 8.1Symfony 4.4FOS REST BundleJWTMySQL 8.0Doctrine 2.8Rediscreof spatialSymfony MessengerAdyenZendeskSegmentAirtableMandrillAWS ECSKubernetesJenkinsSonarCloudLaravel 12Eloquent ORMViteTailwind CSS 4.xLaravel MailSMSGlobal HTTP APILaravel QueuePHPUnit 11LaraTestMockeryPHPStanLaravel PintPHPCS-Cart 4.xproprietary addon architectureMySQL 5.7OpenSearch 1.3Stripe Connectpayment-processor abstractionvendor payout ledgerTwig templates + JSVite bundlernginxphp-fpmLaravel 10 migration serviceLaravel 10Google OAuthLivewire 3Inertia.jsAlpine.jsTailwindPusherSoketiMaatwebsite ExcelDomPDFLibreOfficeBrowsershotFacebook Graph v22Vietinbank iPayAPIMeInvoiceZaloLaravel PulseLaravel MixNestJSTypeScriptTypeORMJWT + PassportPostgreSQL 15Redis 7BullMQOpenAI gpt-4o-miniGeminiGmail APIMicrosoft GraphPHP 8.3Symfony 6.4API Platform 2.6Doctrine ORM 2.11MySQL 8Elasticsearch 7.17Redis 6.2S3Next.js 12React 17Material-UI 5KeycloakPusha push gatewayKaniko buildsPHP 5.6+Laravel 5.6MySQLVue.js 2.1Bootstrap 3.3BladeLaravel Mix / Webpackmilon/barcodebarryvdh/laravel-dompdfmaatwebsite/excelspatie/laravel-backupMailgun / SESNginxPHP 8.2Laravel 11PassportMongoDB 7.0PostgreSQL 16Redis 5Nuxt 3Nuxt 4 + TurborepoVue 3PrimeVueChart.jsDocker ComposeAWS EC2 + S3TraefikSupervisorGitHub ActionsSentryAWS LambdaEFS dependency preloadMongoDBAWS S3scikit-learnscipypandasAWS SageMaker endpointAPI GatewayPoetry + DockerloguruPHP 8.1Symfony 4.4FOS REST BundleJWTMySQL 8.0Doctrine 2.8Rediscreof spatialSymfony MessengerAdyenZendeskSegmentAirtableMandrillAWS ECSKubernetesJenkinsSonarCloudLaravel 12Eloquent ORMViteTailwind CSS 4.xLaravel MailSMSGlobal HTTP APILaravel QueuePHPUnit 11LaraTestMockeryPHPStanLaravel PintPHPCS-Cart 4.xproprietary addon architectureMySQL 5.7OpenSearch 1.3Stripe Connectpayment-processor abstractionvendor payout ledgerTwig templates + JSVite bundlernginxphp-fpmLaravel 10 migration serviceLaravel 10Google OAuthLivewire 3Inertia.jsAlpine.jsTailwindPusherSoketiMaatwebsite ExcelDomPDFLibreOfficeBrowsershotFacebook Graph v22Vietinbank iPayAPIMeInvoiceZaloLaravel PulseLaravel MixNestJSTypeScriptTypeORMJWT + PassportPostgreSQL 15Redis 7BullMQOpenAI gpt-4o-miniGeminiGmail APIMicrosoft GraphPHP 8.3Symfony 6.4API Platform 2.6Doctrine ORM 2.11MySQL 8Elasticsearch 7.17Redis 6.2S3Next.js 12React 17Material-UI 5KeycloakPusha push gatewayKaniko buildsPHP 5.6+Laravel 5.6MySQLVue.js 2.1Bootstrap 3.3BladeLaravel Mix / Webpackmilon/barcodebarryvdh/laravel-dompdfmaatwebsite/excelspatie/laravel-backupMailgun / SESNginx

Domain breadth

Real production systems, grouped by the problem space they solve.

2 systems

Crypto / Web3 Analytics

On-chain analytics, tokenized-asset intelligence and data pipelines across EVM ecosystems.

2 systems

Mobility & Booking

High-availability reservation and booking engines for vehicle rental and hospitality.

1 system

E-commerce

Multi-vendor marketplaces with order orchestration, payouts and multi-tenancy.

1 system

AdTech & CRM

Advertising automation and customer-relationship platforms with financial reconciliation.

1 system

AI & Automation

LLM-driven pipelines for classification, extraction and workflow automation.

1 system

Smart City & IoT

Civic data platforms aggregating multi-source and sensor data into public services.

1 system

Logistics

Cross-border shipment management, tracking and compliance-driven workflows.

How I architect

01 — Distributed & Event-Driven Systems

Async queues, workers and event pipelines that decouple load, absorb bursts and guarantee delivery.

02 — Data & Multi-Tenancy

Polyglot persistence, tenant isolation strategies and denormalization trade-offs for scale.

03 — Cloud & DevOps

AWS / containerized deployments, CI/CD, static-analysis quality gates and reliability engineering.

04 — Integration Architecture

Resilient third-party integrations — payments, banking, e-invoicing, LLM providers and on-chain data.

AI-Native Architecture

Building with AI, not just around it.

I design production AI systems where reliability comes first — async pipelines, provider fallbacks, structured outputs and human-in-the-loop guardrails. Real deployments across email automation and on-chain analytics.

LLM classification & extraction

Structured-output prompts turn messy inputs into typed decisions — urgency, routing, intent — with gpt-4o-mini.

Multi-provider resilience

OpenAI with an automatic Gemini fallback so a provider outage degrades gracefully instead of failing.

RAG & schema-driven scoring

Retrieval plus weighted, schema-validated evaluation produces AI outputs that are reproducible and auditable.

Guardrails & human-in-the-loop

Cost caps, JSON-mode validation, two-stage approval and full audit trails keep AI safe in production.

Ingest
email · data · events
AI Core
LLM · RAG · tools
Guardrails
validate · approve
Action
route · notify · store

Certifications

Credentials backing the practice — cloud, agile, DevOps and IT leadership. Click a certificate to enlarge.

Certified

AWS Certified Developer — Associate (DVA)

Amazon Web Services

Certified

Professional Scrum Master I (PSM I)

Scrum.org

Certified

DevOps Professional Certificate

PagerDuty & LinkedIn

Certified

IT Leadership Professional Certificate

ServiceNow

Featured case studies

View all
Crypto / Web3 Analytics

Crypto Analytics & Token Transparency Platform

Institutional-grade token rating and on-chain analytics aggregating 8+ market-data providers behind a dual-database Laravel core.

PHP 8.2Laravel 11Passport (OAuth2)MongoDB 7.0
Crypto / Web3 Analytics

On-Chain Transaction Analytics & Red-Flag Detection

Event-driven serverless ETL that detects fraudulent and manipulative EVM tokens through a three-stage anomaly-to-ML classification pipeline with confidence scoring.

AWS Lambda (Python 3.11)EFS dependency preloadMongoDBAWS S3 (CSV + model artifacts)
Mobility & Booking

Campervan Rental Booking Engine

Multi-region campervan rental platform pairing a Symfony API with master-slave MySQL and an async payment queue for idempotent, retry-safe checkout at scale.

PHP 8.1Symfony 4.4FOS REST BundleJWT
Mobility & Booking

Multi-Venue Restaurant Reservation Platform

Multi-tenant reservation engine for independent venues, with per-venue database isolation, a custom availability engine and async guest communications on a Laravel 12 core.

PHP 8.2Laravel 12Eloquent ORMMySQL 8.0 (per-tenant)
E-commerce

Multi-Vendor E-Commerce Marketplace

CS-Cart marketplace where a single customer order splits into per-vendor child orders, commission is captured at split time, and vendor earnings settle through a Stripe Connect payout ledger.

PHPCS-Cart 4.x (multi-vendor)proprietary addon architectureMySQL 5.7 (InnoDB)
AdTech & CRM

AdTech & CRM Platform

Multi-module Laravel platform for Vietnamese ad agencies that reconciles Facebook ad spend against bank debits, automates VN e-invoicing, and pushes real-time balance changes over WebSocket.

PHP 8.1Laravel 10Google OAuthMySQL 8.0 (dual connection)

Let's architect what's next.

Looking for a Solution Architect who can reason about trade-offs across domains? Let's talk.

hello@example.com LinkedIn GitHub