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    Case Studies & Featured Projects

    A collection of notable projects I've participated in as Developer, Dev Lead, Team Lead. Each case study focuses on context, challenges, technical solutions, and real results.

    EMS terminal management

    Viettel High Technology Corporation

    Aug 2020 - Aug 2024
    Team lead•20 members
    • Discuss, analyze requirements, and come up with solutions to solve problems.
    • Write documents describing functions.
    • Build projects, design databases.
    Java Spring Boot
    ZK
    Kafka
    ActiveMQ
    Vernemq
    EMQX
    View case study details
    Affliate Marketing (2021)

    VN GREEN EARTH., JSC

    June 2021 - Dec 2021
    Developer•10 members
    • Coding.
    • Solution analysis.
    • Storing projects in microservices.
    Java Spring Boot
    Microservice
    MariaDB
    Redis
    Angular
    View case study details
    Affliate Marketing (2023)

    VN GREEN EARTH., JSC

    Feb 2023 - May 2023
    Dev Lead•6 members
    • Customer exchange.
    • Analyze requirements, create solutions.
    • Divide tasks, review merge code, coding.
    Java Spring Boot
    Microservice
    MariaDB
    Redis
    Kafka
    Angular
    View case study details
    Integrate bank payments into Epay e-wallet

    EPAY SERVICES JOINT STOCK COMPANY

    Aug 2023 - Dec 2023
    Dev Lead•8 members
    • Customer exchange.
    • Set up dev environment (install database).
    • Build a microservice base project.
    Java Spring Boot
    Microservice
    Oracle Database 19c
    View case study details
    Centralized Sales System BCSS

    Digilife Vietnam Digital Services Co., Ltd.

    Aug 2024 - Mar 2025
    Dev Lead•12 members
    • Work directly with end users to collect requirements and finalize business processes.
    • Design and build a centralized system for sales management, inventory management, and customer management for VNSKY telecom.
    • Develop a dedicated web portal for partners to manage SIM stock and perform new subscriber activation.
    Java Spring Boot
    ReactJS
    Oracle Database
    Kubernetes (K8s)
    Kong API Gateway
    Kibana
    View case study details
    Sky Sale App (Part of BCSS Ecosystem)

    Digilife Vietnam Digital Services Co., Ltd.

    Feb 2025 - Jun 2025
    Dev Lead•8 members
    • Design and develop a management app dedicated to telecom partners.
    • Manage SIM resources, packages, and activate new subscribers.
    • Integrate and synchronize data with the BCSS system to control the entire sales lifecycle.
    Flutter
    Java Spring Boot (BCSS backend)
    Oracle Database
    Kubernetes (K8s)
    Kong API Gateway
    Kibana
    View case study details
    Outboard SIM Sales Website

    Digilife Vietnam Digital Services Co., Ltd.

    Feb 2025 - Aug 20, 2025
    Dev Lead•8 members
    • Design and develop an outboard SIM sales website for international travelers.
    • Optimize SEO and deliver a mobile-friendly interface.
    • Manage orders, product listings, and reconciliation reports for partners.
    Java Spring Boot
    Redis
    Kafka
    Oracle Database
    NextJS
    Kubernetes (K8s)
    View case study details
    GEM Web Sale

    GREEN EARTH Vietnam IT & Communication JSC

    Mar 2025 - Present
    Deployment & Operation•5 members
    • Deploy and operate the system for managing SIM inventory, number management, order management, and reconciliation reporting to support sales activities for Mobifone.
    • Integrate with Mobifone (MBF) and e-commerce platforms such as Shopee, Lazada, and TikTok.
    • Manage orders from various sales channels.
    Java Spring Boot
    Kafka
    Redis
    ReactJS
    View case study details
    ESim Sales App (Cho ESim)

    Digilife Vietnam Digital Services Co., Ltd.

    Jun 2025 - Nov 2025
    Dev Lead•6 members
    • Design and develop an eSIM sales app for VNSKY, Mobifone, and related services such as topup.
    • Build both the mobile app and a CMS for order management, product registration, and sales reporting.
    • Integrate with BCSS and GEM systems for effective eSIM sales across the ecosystem.
    Java Spring Boot
    Kafka
    Redis
    MinIO
    ReactJS
    Flutter
    View case study details
    National Credit Information Center (CIC)

    Vietnam National Credit Information Center (CIC)

    Nov 2025 - Present
    Team Lead•26 members
    • Discuss and analyze business requirements with clients and stakeholders.
    • Manage development team, assign tasks, and track project progress.
    • Design and build large-scale credit data processing system.
    Java Spring Boot
    Apache Cassandra
    Oracle Database
    ELK Stack (Elasticsearch, Logstash, Kibana)
    NextJS
    Jenkins
    View case study details

    Về tôi

    Software Engineer & Dev Lead với 5+ năm kinh nghiệm về Java Spring Boot, Microservices, ReactJS

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    phucmnp@gmail.com0868608169

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