Senior - Software Engineer, .NET, Reactjs

We're building an internal operations platform that transform how MoMo sees and manages its core activities.

This is a senior/lead individual contributor role. You will own the technical direction of a greenfield product. You work with the Product Owner to translate business intent into working software.

Mô tả công việc

Lead end-to-end development of a complex, highly optimized web application from architecture to deployment
Build information-dense, keyboard-first interfaces for power users (think Linear, not landing pages)
Design and implement backend services, data models, and API layers
Build integrations with enterprise systems
Make technical trade-offs independently and communicate them clearly
Write maintainable, production-quality code daily
Shape product direction through engineering judgment, push back when designs don't work, propose alternatives when requirements are unclear

Yêu cầu công việc

High Agency

You ship without waiting for perfect information
You see gaps and fill them before being asked
You own outcomes, not activity

Strong Engineering Fundamentals

Modern React: state management, performance optimization, component architecture
TypeScript proficiency on the frontend
Backend proficiency with C# and ASP.NET Core: designing APIs, modeling data, writing efficient queries
Solid understanding of relational databases (PostgreSQL preferred)
Experience integrating with third-party APIs and handling auth, rate limits, error recovery
You understand why things work, not just how to make them work
You write code your teammates will thank you for

Strong Communication

You explain technical concepts clearly to non-engineers
You ask questions early rather than building the wrong thing
You give and receive feedback constructively
You document decisions so others can understand your reasoning
You prefer "we shipped" over "I built"

Good Taste

You have opinions on how professional software should feel
You notice the difference between 50ms and 200ms response times
You understand information hierarchy, what earns screen space, what doesn't
You appreciate tools like Linear, Figma, or VS Code and can articulate why they're well-made

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Qualifications