- Languages
- TypeScript, JavaScript, PHP, Python, SQL, HTML, CSS
- Front end
- Vue 3, React, Next.js, Pinia, Tailwind CSS, Vite
- Back end
- Node.js, Express, CodeIgniter 4, Laravel, REST APIs, OpenAPI, zod, JWT
- Data
- MySQL, PostgreSQL, Firestore, Supabase, MongoDB, Redis, Meilisearch, MySQL Workbench
- Cloud
- AWS Lambda, API Gateway, Amplify, CloudWatch, S3, SES, ECS, EC2, Google Cloud (Maps Platform, Firebase), Vercel, Cloudflare, GoDaddy domains and hosting, DNS and SSL
- DevOps and tools
- Docker, Azure DevOps, CI/CD pipelines, Serverless Framework, Git, GitHub, Postman, PuTTY and SSH server access
- AI
- Claude, Claude Code, ChatGPT, Base44, Claude API (Anthropic SDK), Gemini API, OpenAI Images API, Structured outputs, AI-assisted software development, Prompt engineering
- Integrations
- Airline, hotel, bus and ferry supplier APIs, Travel insurance (Starr), Attractions, eSIM and cruise (GlobalTix), Bills payment (Bayad, ECPay), Payment gateways (PayMongo, Xendit, Bux), Payment webhooks, Transactional email (Amazon SES)
- Practice
- API and database design, Idempotency, Vendor stubs, Automated testing, Production support, Technical writing
- Leadership
- Team leadership, Agile and Scrum, Sprint and release planning, Code review, Mentoring developers, Requirements analysis, Stakeholder communication