Principal Backend Engineer (Big Data/ NodeJS)

ABOUT YOUNET MEDIAYouNet Media, a member of YouNet Group, is the leading Social & E-commerce Intelligence company in Vietnam and Southeast Asia. Owning the complete Social Suite — SocialHeat, SocialTrend, and SocialLift — and leveraging EcomHeat from YouNet Group, we provide both platforms and actionable services that transform data into intelligence and drive measurable business impact.With technology at our core and deep expertise in analytics and consulting, YouNet Media empowers over 500 top brands to make smarter decisions, optimize execution, and achieve sustainable growth in the era of Digital Commerce and AI. "We are looking for a visionary Principal Backend Engineer to lead our core engineering force, architecting systems that process billions of data points and defining the future of market-leading AI products across Southeast Asia." ROLES & RESPONSIBILITIESTechnical Leadership & Team Empowerment: Lead our core engineering force in building massive-scale data systems, taking full responsibility for both the architectural integrity and the professional growth of the engineering team.System Architecture: Take full ownership of the system architecture; participate in all phases of product development from requirement analysis to high-level design and deployment.Strategic Collaboration: Work closely with the Business Analyst (BA) and Technical Lead to drive Social Listening product development and innovation.Direct Impact: Report directly to the Technical Director and contribute to the long-term technical roadmap of the company.Career Promotion Path:Technical Leader/ManagerTechnical ArchitectREQUIREMENTSExperience: 5+ years in backend services, with 3+ years specifically in NodeJS and relevant frameworks.Big Data Expertise: Proven experience in crawling and processing massive datasets from multiple sources (Facebook, Youtube, Instagram, News, etc.).Technical Mastery: Strong OOP, design patterns, and architectural patterns.Database Systems: Excellence in designing scalable, high-performance, and secure database systems (MySQL & NoSQL).Search & Messaging: Hands-on experience with ElasticSearch/Solr, and message queues like RabbitMQ or Kafka.Infrastructural Knowledge: Proficiency in Redis and Linux environments.Other Requirements:University degree in Computer Science, ICT, or Software Engineering (Good/Excellent rank).Proficiency in English (especially reading and writing).Experience in Project Management or supervisory roles (Team Lead/Technical Assistant) is a significant advantage.Familiarity with Agile/Scrum and tools like Jira, Wiki.BENEFITSCompensation: 13th-month salary and performance appraisals/promotions every year.Health & Wellness: Premium healthcare insurance and standard health checks.Work-Life Balance: 12 days annual leave + 5 days sick leave.Culture: Company trips, Year-end parties, Team building, and regular Happy Hours.Support: Parking support, full equipment (PC/Laptop), and occasion-based offerings (Birthday, Wedding, Maternity).