Curriculum Vitae

View my resume (PDF)

Education

• George Mason University | Fairfax, VA, USA | Aug 2025 - Dec 2026
  • M.S. in Computer Science
  • Current GPA: 3.86/4.0
• Hanoi University of Science and Technology | Hanoi, Vietnam | Aug 2017 - Jun 2022
  • B.S. in Information Technology, Global ICT Program
  • GPA: 3.62/4.0 | Excellence Degree (Top 5% of cohort)
  • Excellence Scholarship Academic Award in 2021

Publications

• Proposed Intelligent Decision Support System using Hedge Algebra integrated with Picture Fuzzy Relations for improvement of decision making in medical diagnoses
  • Hoang, T.L., Pham, H.V., Hung, N.Q. et al. Proposed Intelligent Decision Support System Using Hedge Algebra Integrated with Picture Fuzzy Relations for Improvement of Decision-Making in Medical Diagnoses. Int. J. Fuzzy Syst. 25, 3260–3270 (2023). https://doi.org/10.1007/s40815-023-01548-4

Work experience

LINE Technology Vietnam - Backend Software Engineer

Hanoi, Vietnam | Jun 2025 – Aug 2025

• Implemented an online data migration solution for 10TB+ of data from LINE and Yahoo systems to a unified MySQL database using dual-write and backfill strategy.
• Leveraged AI-assisted development tools and prompt engineering for source code onboarding, automated unit & integration tests, and early-stage code review, increasing development velocity.

Viettel Digital - Backend Software Engineer

Hanoi, Vietnam | May 2021 – Jun 2025

• Customer Engagement Platform | 2023 - 2025
  • Architected an in-house marketing platform to deliver personalized campaigns through push notifications, in-app messaging, and rewards distribution, processing 100M+ events daily.
  • Increased user segmentation creation throughput from 500 to 35,000 QPS while reducing p95 latency by 80% by introducing a Roaring Bitmap-based solution and multi-layer caching.
  • Engineered a Camunda-based workflow orchestration module, enabling operations teams to configure and manage 200+ single- and multi-step marketing workflows per month.
  • Led a team of 4 backend engineers through Agile sprint planning, system design, and peer code reviews, guiding technical decisions to keep the system maintainable through rapid feature growth.
  • Owned end-to-end system observability using Grafana, identifying performance bottlenecks and improving reliability through configuration tuning, caching strategies, and microservice patterns.
• Data Tracking System | 2022 - 2023
  • Designed and delivered a high-throughput in-house event tracking system for mobile and web platforms, processing 150M+ events daily and replacing a third-party tracking provider to reduce licensing costs.
  • Reduced event validation latency by 30% by replacing linear rule processing with a decision-tree validation engine, supporting 3,000+ dynamic rules configurable online.
  • Built non-blocking ingestion APIs using Spring WebFlux, sustaining 1,700+ RPS on average while reducing request-per-thread overhead.
• Smart Authentication System | 2021 - 2022
  • Collaborated on the research and delivery of a Smart OTP solution for 20M+ end users, eliminating reliance on SMS OTPs and saving over $200K/year.
  • Implemented secure key exchange, OTP generation, and digital signature mechanisms across critical APIs, meeting internal cryptographic and security-review requirements.
  • Hardened Android client application using native C/JNI, applying obfuscation and root/jailbreak/tamper detection, successfully passing enterprise-level security audits.

Technical Skills

• Languages: Java, Python, C, JavaScript, Go
• Backend: Spring Framework, Spring Boot, Microservices, Camunda, REST, gRPC, JUnit, Mockito, Testcontainers
• Infra & Data: Apache Kafka, Redis, MySQL, MongoDB, Elasticsearch, MinIO, ClickHouse
• Platforms & Ops: Kubernetes, Docker, Jenkins, Grafana, ELK, K6, Linux, Bash, Git
• AI Tooling: Claude, OpenAI Codex, Agentic Workflows, Prompt Engineering
• Familiar with: Agile SDLC, Distributed Systems, Design Patterns, Cybersecurity

Certificates

• AWS Certified Solutions Architect – Associate - Issued Sep 2023
  Credential

• MongoDB Associate Developer - Issued Apr 2024
  Credential

• Oracle Certified Associate – Java SE 8 Programmer - Issued Apr 2023
  Credential

• Redis Certified Developer - Issued Dec 2021
  Credential

• English Test: TOEIC 955/990, IELTS 7.5 (Issued 2024)