Design the system
Microservices, service communication, data models, and event-driven architecture.
TECHNICAL ARCHITECT / SENIOR .NET ENGINEER
Le Van
Don.
Architecture ✳ Engineering ✳ Delivery
I design distributed systems, build dependable software, and help teams take complex ideas from architecture to production.
01 / ABOUTArchitecture with
Architecture with
an engineer’s mindset.
From system boundaries to working software, I care about decisions that stay useful in production.
Over the past decade, I’ve worked across enterprise HR systems, high-volume retail software, and cloud-hosted gaming platforms. My work spans service design, backend engineering, data flows, deployment, and operations.
I’m strongest where architecture meets delivery: defining clear system boundaries, choosing practical communication patterns, and working closely with product, BA, QA, and engineering teams to ship reliable software.
Build the product
Hands-on engineering with C#, .NET, Node.js, APIs, and data platforms.
Deliver reliably
AWS, CI/CD, Kubernetes, GitOps, observability, and team collaboration.
02 / EXPERIENCE
A decade of building.
A chronological view of the systems, teams, and products I’ve worked with.
JUL 2022 — JUL 202501 / 06
Technical Architect
Quantico Lab
Designed and led architecture for a microservices-based gaming platform on AWS, from requirements and system design through production deployment.
- Defined service structure, database design, and event-driven communication patterns.
- Built services with C#, .NET Core, NestJS, Kafka, Redis, and MongoDB.
- Implemented CI/CD with Jenkins and GitHub Actions; adopted Flux GitOps for Kubernetes deployments.
SEP 2021 — JUL 202202 / 06
Senior Backend Developer
Vin3S · Vingroup
Developed enterprise HR services integrated with the SAP ecosystem, including employee lifecycle workflows and scalable APIs.
- Worked with BA, SAP, and MuleSoft teams to define and deliver technical solutions.
- Optimized database queries and backend processing logic.
- Supported and mentored team members through technical guidance.
NOV 2019 — SEP 202103 / 06
Senior Developer
Citigo · KiotViet
Contributed to a microservices retail platform supporting high-volume operations for Vietnamese businesses.
- Developed service integrations using Kafka, message queues, webhooks, and HTTP APIs.
- Improved backend performance and invoice import workflows.
- Reviewed code, improved development practices, and mentored developers.
DEC 2018 — NOV 201904 / 06
Software Engineer
VietSoftware International
Delivered features for Vingroup’s HRM portal and collaborated with business analysts on functional requirements.
- Developed HR workflows, APIs, and reporting features.
- Worked with C#, ASP.NET MVC, Web API, RabbitMQ, Redis, and SignalR.
NOV 2016 — DEC 201805 / 06
Software Developer
Dolphin Solutions
Built and maintained healthcare software for appointment, prescription, materials, billing, and patient workflows.
- Developed new features for the DeltaMed healthcare platform.
- Helped build an advertising tracking system, including database design and application features.
DEC 2015 — NOV 201606 / 06
Backend Developer
RASIA Ltd.
Developed ERP features for manufacturing, pricing, orders, invoicing, and multi-country agency management.
- Built and maintained backend features in C# and ASP.NET.
- Worked with business analysts on requirements and delivery estimates.
03 / EXPERTISEA practical toolkit for
A practical toolkit for
complex systems.
Architecture
Microservices, distributed systems, event-driven design, system and database design, performance optimization.
Engineering
C#, .NET Core, ASP.NET, Node.js, NestJS, Go, REST APIs, Angular, React.
Data & messaging
SQL Server, MySQL, MongoDB, Redis, Elasticsearch, Kafka, RabbitMQ.
Delivery & operations
AWS, Docker, Kubernetes, Flux, Jenkins, GitLab CI, GitHub Actions, ELK, Grafana, Prometheus.
04 / CONTACTLet’s build something
Let’s build something
that lasts.
Open to conversations about architecture, backend engineering, and complex software systems.
Send an email