AW

Alexander Widing

Lead Architect / Head of Engineering

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.

Technical Skills

Backend Development Expert
PHPLaravelGoPythonREST APIsOpenAPI/SwaggerMySQLPostgreSQLMongoDBRedisSupabaseQueue Processing (Laravel Queues/Horizon)JWT AuthenticationOAuth2WorkOSRate LimitingAPI Security
Frontend Development Advanced
JavaScriptTypeScriptVue.jsAngularAlpine.jsLivewireNext.jsAstroTailwindCSSSSR/SSGViteWebpacki18n/l10n
AI Engineering Advanced
RAG PipelinesLLM Integration (Production)Prompt EngineeringPrompt VersioningVector DatabasesText EmbeddingsOpenAI APIHuggingFace ModelsEvaluation FrameworksHallucination MitigationMulti-shot Prompting
DevOps & Infrastructure Advanced
AWSLinux Server AdministrationNginxDockerCI/CDVercelCloudflareSSL/TLS (Let's Encrypt)Database Backups & RecoveryS3 Object StorageGit
Observability & Monitoring Intermediate
New RelicSentryNightwatchProduction MonitoringError Tracking
Testing & Quality Advanced
TDDUnit TestingPestAutomated Testing
Architecture & Practices Expert
System DesignRESTful APIsAPI DocumentationSaaS Multi-tenancyEvent-Driven ArchitectureDatabase DesignCaching Strategies (Redis, CDN, HTTP)MVCMicroservicesTechnical DocumentationAgile/Scrum
CMS & Platforms Advanced
WordPressCustom CMS Development

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

Selected Projects

MMO Networking Proof-of-Concept

— Solo Developer
2025

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

  • 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
GoGodot 4.5GDScriptPostgreSQLRedisWebSocketJWTDocker Compose

TMS SaaS Platform

at DxT — Lead Architect, AI Engineer
2025

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

  • 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
LaravelPythonSaaSRAGLLMPrompt EngineeringVector DatabaseEmbeddingsTranslationMulti-tenancy

Content Localization Pipeline

at EQHO Communications — Solutions Architect
2025 – 2025

Content processing system for regional airline

  • 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
LaravelMongoDBRedisLLMOpenAPI/SwaggerQueue ProcessingLocalizationSolutions ArchitectureContent Pipeline

Enterprise ERP Suite

at EQHO Communications — Lead Developer, Architect
2016 – 2021

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

  • 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
LaravelPostgreSQLERPAccountingCRMDouble-entry BookkeepingFinancial ReportingMulti-currency

Education

Associate of Applied Science (AAS)

Software Engineering

Uppsala University · 2012–2014

Independent Course (15 Credits)

Introduction to 3D-Graphics

Högskolan på Gotland · 2012–2012

Independent Course (15 Credits)

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

Linnéuniversitetet · 2012–2012

Certifications

EFR (Emergency First Response) Certification

EFR® · 2022

AIDA Freediving Instructor & Competition Coach

AIDA International · 2022

Coached athletes to 2 National Records

Pyrotechnics Safety Training

MC-Boden AB, Stockholm · 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)

Contact Info (saved locally)

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