• Engineering Manager with 13+ years of software engineering experience.
• Helped build and scale ITviec from an early-stage startup into a leading IT recruitment platform in Vietnam.
• Focused on engineering leadership, software architecture, backend systems, reliability, and security.
• Remain hands-on with system design, code reviews, performance optimization, and critical technical decisions.
• Currently exploring AI-powered products, agentic engineering and security.

Engineering management, technical strategy, system design, scalable architecture, mentoring, technical decision-making, and DORA metrics.

Ruby, Ruby on Rails, REST APIs, PostgreSQL, Redis, Elasticsearch, Sidekiq, Caching, and Performance Optimization.

AWS, GCP, Cloudflare, CI/CD, Observability, Incident Response, and Production Operations.

OWASP ASVS, OWASP Top 10, Secure architecture, Vulnerability Management, Penetration Testing, and AWS Security Hub.

LLM integration, RAG, embeddings, Vector Search, Hybrid Search, AI Evaluation, and Agentic Workflows.

• Created Học Ruby on Rails Căn Bản course on Udemy, reaching 2,100+ students with 4.5-star rating.
• Authored Build Instagram with Ruby on Rails tutorial series on Medium, reaching 10,000+ reads and 3,000+ claps.