Worked with international clients, overseas teams, onsite support, and cross-border execution.
I am Dao Van Do, a backend engineer focused on Java, Spring Boot, distributed architecture, high-load APIs, AI-assisted engineering, and international enterprise delivery.
Worked with international clients, overseas teams, onsite support, and cross-border execution.
Delivered large logistics programs for international partners at FORTNA.
Third-party APIs, crypto payment flows, sockets, and external service connectivity.
Google Cloud, Vultr, Contabo, Cloudflare, Nginx, deployment, and monitoring.
Senior Java backend engineer with proven experience delivering logistics platforms, fintech and payment systems, distributed services, high-load APIs, socket-based communication, third-party integrations, and cloud-backed deployments for enterprise environments. Hands-on experience with VPS and cloud platforms such as Google Cloud, Vultr, and Contabo, including service setup, deployment, monitoring, Cloudflare, and Nginx. Strong background in working directly with international clients and cross-border teams, including onsite support in the United States, overseas deployments, English communication, and AI-assisted engineering workflows that improve delivery speed and quality.
Designing services with clear boundaries, maintainable APIs, and production-grade reliability.
Building and optimizing APIs that support high concurrency and large request volume.
Working with socket-based flows, third-party API integrations, and payment-related backend systems.
Working with foreign clients, international teams, onsite deployments, and English communication in delivery environments.
Deploying and monitoring services across VPS and cloud environments using Google Cloud, Vultr, Contabo, Cloudflare, and Nginx.
Backend engineering experience across logistics, fintech, payment systems, third-party integrations, socket-based communication, cloud operations, reporting, AI-assisted workflows, external product delivery, and international customer-facing execution.
FORTNA · U.S. / Global Projects
Building logistics and supply-chain systems for large-scale enterprise operations while working with international customers, distributed teams, and overseas deployments.
Delivered backend systems for logistics programs ranging from USD 100 million to USD 1 billion for major international partners such as Macy's, Metco, H&M, and other global enterprises.
Worked directly with foreign customers and international teams, including onsite work in the United States and deployment support abroad.
Eway · Vietnam
Developed online lending, rule-engine, affiliate sales, reporting, and customer integration systems for high-volume business operations.
Designed and developed online loan products integrated with banks, eKYC, credit scoring, and customer data services.
Built affiliate sales, rule-engine, reporting, and customer integration systems supporting revenue and operational visibility.
Independent Projects · External Products
Led a 5-member team on external projects while working directly with investors across fintech, live-streaming education, and payment-focused products.
Delivered external products in fintech with integrations to third-party payment providers and crypto-based payment flows.
Built product features for live classroom experiences, real-time platform coordination, and supporting backend services.
Fsoft · Vietnam
Built and maintained APIs for internal management systems with high concurrent usage and operational reliability requirements.
Developed and maintained APIs for internal tools used across Fsoft systems with thousands of concurrent visits.
A backend-focused stack for building reliable, maintainable, and scalable systems.
AI Experience
Experienced in using AI tools to support analysis, coding, debugging, documentation, and delivery efficiency.
Integrations & Payment Systems
Hands-on experience with socket-based communication, third-party API integrations, and backend systems related to payment flows and external service connectivity.
Cloud & Service Operations
Experienced with Google Cloud, Vultr, Contabo, Cloudflare, and Nginx for service setup, deployment, and monitoring across VPS and cloud environments.
International Clients
Worked directly with foreign customers and stakeholders across requirement clarification, implementation, deployment, and delivery support.
External Project Leadership
Led a 5-member team on independent projects and worked directly with investors on fintech, live-streaming classroom products, and payment-related initiatives.
Onsite & Overseas Delivery
Went onsite in the United States and supported implementation and deployment activities in overseas environments.
International Teams
Collaborated with overseas engineers and cross-functional teams across product delivery and production operations.
English Communication
Able to communicate in English for technical discussions, customer coordination, and day-to-day project delivery.
Engineer’s Degree in Software Engineering
Hanoi, Vietnam · 2015 — 2019
Leader of a volunteer group · Member of Guitar Club