Alexander Widing

Lead Architect / Head of Engineering

Bangkok, TH Website PDF

Full-stack architect and engineering leader with over 11 years of experience owning end-to-end system architecture, from technology selection and design to production deployment. Currently focused on production AI engineering alongside SaaS architecture. Experience spanning enterprise platforms, multi-tenant systems, and leading cross-functional teams. I build systems and teams, from ERP suites and AI powered products to coaching athletes to national records.

Work Experience

Lead Architect / Head of Engineering

DxT Corporation Co., Ltd. Bangkok, Thailand
Feb 2025 — Present

Leading technical vision and system architecture for enterprise-grade SaaS Translation Management System (TMS). Hands-on architect role combining system design with AI engineering implementation.

  • Designed end-to-end system architecture including technology stack selection, data models, API design, and functional workflows
  • Set organization-wide technical direction and architecture standards as strategic partner to CEO
  • Built production RAG pipeline integrating vector search with LLM generation for AI-powered workflows
  • Implemented evaluation frameworks to score and measure LLM output quality, with human evaluation loops
  • Engineered prompt versioning system and hallucination mitigation strategies for reliable LLM outputs
  • Define technology stack, coding standards, and CI/CD pipelines for scalable multi-tenant SaaS architecture
  • Own full product lifecycle from requirements to production monitoring, hands-on with code daily
  • Lead cross-functional team of 5 spanning engineering, product, QA, and project management

Lead Software Engineer

EQHO Communications Ltd. Bangkok, Thailand
Jan 2021 — Jan 2025

Led development team at digital agency, delivering custom systems and websites for clients across diverse industries.

  • Architected and delivered web solutions and custom e-commerce platforms for clients, integrating third-party APIs and payment systems
  • Designed and deployed infrastructure architecture for regional airline websites serving China and Taiwan markets
  • Built and documented full REST API with OpenAPI/Swagger specification for airline client
  • Led technical direction for small engineering team while remaining hands-on with code
  • Managed DevOps responsibilities including server or compute provisioning, deployment automation, and production monitoring

Corporate Systems Manager / Senior Software Engineer

EQHO Globalization Pte. Ltd. Singapore & Bangkok, Thailand
Aug 2015 — Jan 2021

Designed and developed suite of internal corporate systems and client-facing applications.

  • Designed and developed suite of internal corporate systems including ERP, CRM, Accounting, Project Management, and HRM modules — adopted company-wide, reducing operational overhead by 90% for executive, sales, and project management teams
  • Gained hands-on corporate finance and accounting knowledge through mentorship while building an accounting system, learning financial workflows, reporting, and compliance requirements
  • Migrated legacy systems to modern frameworks, reducing maintenance overhead and improving performance
  • Managed production databases with business-critical data, implementing backup and recovery procedures

IT/Telecom Technician & Developer

Com7 AB Bangkok, Thailand & Gothenburg, Sweden
Jan 2015 — Aug 2015

Managed IT infrastructure and developed web applications for international telecom company.

  • Managed IT infrastructure at the Bangkok office
  • Performed on-site network installations at B2B customer offices in Gothenburg
  • Built a client database and automation tool using PHP, Python, and MySQL to aggregate subscription data from service providers and generate reports for the sales team
  • Provided technical support for corporate customers (phone switches, network, WiFi) and assisted with home cell antenna installations in remote areas

Freelance Web Developer

theWiding Software Stockholm, Sweden
Jun 2014 — Nov 2014

Freelance web design and development services for 2 clients.

  • Delivered a production website using WordPress
  • Built a custom CMS from scratch using PHP for a client's specific needs

Retail & Sales Associate

Prior non-tech experience Stockholm, Sweden
Aug 2010 — Jun 2012

Skills

Backend Development

Expert
PHP Laravel Go Python REST APIs OpenAPI/Swagger MySQL PostgreSQL MongoDB Redis Supabase Queue Processing (Laravel Queues/Horizon) JWT Authentication OAuth2 WorkOS Rate Limiting API Security

Frontend Development

Advanced
JavaScript TypeScript Vue.js Angular Alpine.js Livewire Next.js Astro TailwindCSS SSR/SSG Vite Webpack i18n/l10n

AI Engineering

Advanced
RAG Pipelines LLM Integration (Production) Prompt Engineering Prompt Versioning Vector Databases Text Embeddings OpenAI API HuggingFace Models Evaluation Frameworks Hallucination Mitigation Multi-shot Prompting

DevOps & Infrastructure

Advanced
AWS Linux Server Administration Nginx Docker CI/CD Vercel Cloudflare SSL/TLS (Let's Encrypt) Database Backups & Recovery S3 Object Storage Git

Observability & Monitoring

Intermediate
New Relic Sentry Nightwatch Production Monitoring Error Tracking

Testing & Quality

Advanced
TDD Unit Testing Pest Automated Testing

Architecture & Practices

Expert
System Design RESTful APIs API Documentation SaaS Multi-tenancy Event-Driven Architecture Database Design Caching Strategies (Redis, CDN, HTTP) MVC Microservices Technical Documentation Agile/Scrum

CMS & Platforms

Advanced
WordPress Custom CMS Development

Selected Projects

MMO Networking Proof-of-Concept

Oct 2025 — Present

Multiplayer 2D roguelike game built to stress-test networking architecture for MMO-scale applications

Solo Developer
  • Stress-testing single-server player capacity and multi-region scaling architecture
  • Designed custom networking layer with delta compression and WebSocket real-time state sync
  • Built authoritative game server handling physics, combat validation, and AI
  • Developed Go REST API with JWT authentication, PostgreSQL persistence, and Redis caching
  • Orchestrated multi-container deployment with Docker Compose
Go Godot 4.5 GDScript PostgreSQL Redis WebSocket JWT Docker Compose

TMS SaaS Platform

DxT

Feb 2025 — Present

Translation Management System with AI-powered features for the enterprise localization market

Lead Architect AI Engineer
  • Multi-tenant SaaS architecture serving enterprise clients
  • Production RAG pipeline, Vector retrieval, context injection, LLM generation for automated translation
  • Implemented prompt versioning with multi-shot prompting and training for hallucination mitigation
  • Built evaluation pipeline using evaluation frameworks, and human evaluation for output quality measurement
  • Vector store with semantic search for translation memory retrieval
  • Dual embedding strategy: OpenAI for cloud processing, and HuggingFace sentence transformer for offline processing
  • Python automation scripts for AI integrations and workflow automation
Laravel Python SaaS RAG LLM Prompt Engineering Vector Database Embeddings Translation Multi-tenancy

Content Localization Pipeline

EQHO Communications

Jan 2025 — May 2025

Content processing system for regional airline

Solutions Architect
  • Architected end-to-end content pipeline
  • Built automated quoting engine using word count analysis and TM fuzzy matching against pricing rules
  • Implemented LLM-assisted localization workflow for English to multiple languages with human review
  • Designed REST API with full OpenAPI/Swagger documentation for technical team
  • Managed infrastructure for regional sites
  • Queue-based job processing for content updates
Laravel MongoDB Redis LLM OpenAPI/Swagger Queue Processing Localization Solutions Architecture Content Pipeline

Enterprise ERP Suite

EQHO Communications

May 2016 — Jan 2021

Integrated Accounting, CRM, and Project Management systems for internal corporate use

Lead Developer Architect
  • Full double-entry accounting system with Chart of Accounts, General Ledger, and multi-currency support
  • Financial reporting suite: P&L, Balance Sheet, Cash Flow statements, and custom reports
  • AR/AP management with invoice generation, payment tracking, partial payments, and aging reports
  • Tax handling including VAT and withholding tax calculations
  • Revenue tracking and financial dashboards for executive reporting
  • CRM for customer relationship tracking
  • Project management and resource allocation
Laravel PostgreSQL ERP Accounting CRM Double-entry Bookkeeping Financial Reporting Multi-currency

HRM System

EQHO Communications

Aug 2020 — Oct 2025

Comprehensive Human Resource Management system for employee and workforce management

Lead Developer Architect
  • Employee management and company directory
  • Payroll management system
  • Clock in/out time tracking
  • Electronic leave requests and sick leave management
  • Company holidays calendar
Laravel HRM Supabase Enterprise

GPS Tracker System

Uppsala University

Mar 2014 — Jun 2014

Arduino-based GPS tracking device with web interface for vehicle/boat tracking and anti-theft purposes (Thesis Project)

Team Lead Developer
  • Led 3-person team for university thesis project
  • Arduino paired with GPS chip and SIM card for cellular data transmission
  • Device transmitted GPS coordinates to Laravel REST API for persistent storage
  • Web interface plotted device movement history on interactive maps via Google APIs
  • Park alarm feature alerting users when device is moved
Laravel Arduino Google APIs GPS IoT

Education

Associate of Applied Science (AAS)

Software Engineering

2012 — 2014

Independent Course (15 Credits)

Introduction to 3D-Graphics

2012 — 2012
Högskolan på Gotland

Independent Course (15 Credits)

Basic Course in 3D-Graphics with Autodesk 3ds Max

2012 — 2012

High School Diploma

Natural Science - IT Specialization

2007 — 2010

Certifications

AIDA Freediving Instructor & Competition Coach

AIDA International 2022
  • Coached athletes to 2 National Records

Pyrotechnics Safety Training

MC-Boden AB, Stockholm Nov 2010
  • Certified in safe handling, storage, and sale of consumer pyrotechnics

Languages

Swedish

Native speaker

English

Fluent

Thai

Conversational; basic reading

Japanese

Basic (JLPT N5)

Interests & Activities

Traditional Rock Climbing

Multipitch guide (6 students) Belay instructor Japan, Korea, China, Taiwan, Canada, Austria, Spain, Laos, Thailand, Sweden

Fitness & Nutrition

Physical training Nutrition science

Portrait Photography

Fujifilm

JDM & Nostalgic Cars

Japanese domestic market 90s drift cars

Competitive Gaming (Esports)

World of Warcraft: Main Tank, Realm 2nd guild (2005-2010) StarCraft 2: Diamond League (2010) Battlefield 3: ESL Pro League (2012)