Principal Software Engineer/Technical Lead

12026-06-04

Responsibilities

Own the architecture of a high-throughput, real-time cybersecurity data platform
Lead design decisions across distributed, event-driven systems at scale
Define system evolution: scalability, reliability, and long-term maintainability
Architect and optimize end-to-end data pipelines (ingestion → processing → storage)
Establish and elevate engineering standards, system design practices, and review culture
Balance complex trade-offs across performance, cost, and security
Partner with global teams in a product-driven, international environment
Leverage modern tooling (including AI-assisted development) to improve engineering velocity
Contribute to the design of distributed, event-driven systems
Build and maintain data pipelines (from ingestion to storage)
Work with message brokers such as Kafka, RabbitMQ, or similar tools
Help ensure system scalability, performance, and reliability
Apply security best practices in system design
Collaborate with the team to solve technical challenges and trade-offs
Participate in system design reviews and improve engineering quality
Write clean, maintainable code and leverage AI tools to improve productivity

Minimum 7+ years of experience in software development, with strong expertise in .NET (C#, .NET Core / .NET Framework) or Python for enterprise-scale applications.
Proven experience as a Fullstack Developer, with solid knowledge of frontend technologies such as HTML5, CSS3, JavaScript (experience with modern frameworks is a plus).
Strong understanding of Object-Oriented Programming (OOP) and design principles: SOLID, DRY, Separation of Concerns, Dependency Inversion.
Familiarity with Domain-Driven Design (DDD), Clean Architecture, Microservices, and Service-Oriented Architecture (SOA).
Proven track record designing and scaling distributed systems in production
Deep experience with event-driven or streaming architectures
Experience leading architecture decisions and technical direction
Ability to operate at both strategic (system design) and hands-on (implementation) levels
Comfortable working with and guiding teams using AI-assisted development tools
Hands-on experience building high-throughput, real-time data pipelines
Strong knowledge of cloud-native architecture (Azure preferred)

Nice to Have

Good understanding of: Access control models (RBAC), Secure communication (TLS, secrets management), Audit logging and compliance (e.g., GDPR, data residency)
Background in cybersecurity, observability, or network monitoring systems
Experience with enterprise environments and tools: Firewall systems, Identity providers, Network vendors
Exposure to large-scale, real-time analytics platforms

Attractive and competitive performance-based compensation package.
Full gross salary during probation.
Generous 13-month salary and dedication bonus.
Comprehensive healthcare insurance package and annual health check-ups.
Flexible check-in time before 10:00 AM on weekdays.
2-day remote work per week.
12 annual leave days, 5 sick leave days, 11 public holidays as required by Vietnamese Labor Law, plus one extra day off for Christmas.
Opportunity to work on global projects, collaborate with international teams, and have business trip to Australia.
Daily breakfast, Happy Thursday gatherings to connect with colleagues.
Active sport clubs such as badminton, running, football, music clubs.
Teambuilding activities, annual company trips, and year end party.
Continuous learning opportunities through technical & soft skills training, English classes, and internal communities.
Financial assistance for important life events, including marriage, childbirth, and bereavement, ensuring support at every stage of life.