About

Learn more about me

Software Developer & Team Lead

Around years in software development (Java/Spring, ZK Framework) and years leading developer teams. Experienced with CI/CD, Agile/Scrum, and end-to-end delivery from requirements to deployment.

  • Birthday: 14 May 1999
  • Phone: (+84) 375 377 012
  • City: Bắc Từ Liêm, Hà Nội

I focus on building reliable systems and improving team velocity. Comfortable across backend APIs, database design, and DevOps pipelines (Docker, CI/CD). I enjoy mentoring teammates and documenting best practices.

10

Projects

0

Years Experience

710

TOEIC

0

Years as Team Lead

Skills

Java 90%
Spring Boot 70%
Hibernate/JPA 80%
ZK Framework 85%
SQL (Oracle, PostgreSQL) 85%
Docker & CI/CD 70%
Linux 70%
Python 60%

Interests

Video Making

Traveling

Reading Books

Music

Coding Tools

Personal Projects

Collaboration

Learning New Tech

Resume

Based on my latest CV

Education

FPT University — Software Engineering

Aug 2017 – Sep 2021

Hòa Lạc Hi-Tech Park, Thạch Thất, Hà Nội

  • Member of Chess Club and 1st cohort of FPT Laboratory.
  • Participated in Cuộc đua số (FPT) and ACM‑ICPC contests.

Certificates & Awards

  • TOEIC 710/990
  • Microsoft Technology Associate (MTA)
  • Emulative Soldier (Internal Excellence Award) 2023, 2024
  • Viettel Technology Warrior Award 2024

Experience

Software Developer & Team Lead — Viettel Solutions

Jun 2021 – Present

Software Development Dept., Government Solutions Center

  • Develop features, fix bugs, write ops docs; deploy and operate internal systems.
  • Lead project teams (<20 members); plan work and allocate tasks.
  • Collaborate with FE/QA/stakeholders; provide technical guidance.
  • Optimize source code & databases; mentor new staff.

Intern Developer — Viettel Solutions

Jun 2019 – Aug 2019

Software Development Dept., Government Solutions Center

  • Explored system operations; implemented features and bug fixes.
  • Coordinated with Solution Dept. to confirm requirements and error handling.
  • Tracked work via Redmine; delivered fixes and enhancements.

Portfolio

My Works

  • All
  • App
  • Web
  • CLI Tool
Vietnam International Defence Expo 2024
Type
Web / Dashboards
Client
Ministry of Defence (Viet Nam)
Duration
Oct 2024 – Dec 2024 COMPLETED
Role
Leader • Dev • DevOps
Highlights
80k+ CCU registration/lookup; real‑time analytics & heatmaps; crowd dashboards
Tech Stack
Spring Boot Python PostgreSQL Redis
WhozBossInsight
Type
Analytics App
Duration
Aug 2025 –Now
Role
Solution Architect • DevOps • Data Engineer
Highlights
ETL from Redmine/Jira/Git, AI summaries (Ollama), weekly reporting
Tech Stack
Python Redis Docker CI/CD
VOffice Projects (Multiple Clients)
Type
Web (Enterprise)
Duration
Jun 2020 –Now
Role
Leader • Developer
Highlights
Requirements, features, ops, performance tuning, reviews & mentoring
Tech Stack
ZK Framework Hibernate Oracle Java 8
ApiForwarder Gateway
Type
Web / Service
Duration
Aug 2023 –Now
Role
Developer • System Design
Highlights
REST logging, load balancing, mock APIs, request cache
Tech Stack
Spring Boot Redis
SAFO NFC Business/Personal Card
Type
Android App
Duration
Jun 2019 – Oct 2019 COMPLETED
Role
Mobile & Backend Dev • System Architecture • BA
Highlights
NFC/QR sharing, templates, discounts, reports
Tech Stack
Spring Boot Android (Java) MySQL CI/CD
Music Streaming Website
Type
Web
Duration
Jun 2019 – Oct 2019 COMPLETED
Role
Full‑stack Developer
Highlights
Smart crawling, caching, fast discovery
Tech Stack
Java Servlet Bootstrap 4 SQL Server

Contact

Contact Me

My Address

Nam Từ Liêm, Hà Nội

Social Profiles

Email Me

ducseul@gmail.com

Call Me

(+84)90 4777 599

(+84)37 5377 012

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