Senior IT System Engineer (based in Da Nang)

Smart. Dev is an AI-powered software development company headquartered in Vietnam, part of the Verysell Group. We help global businesses deliver faster and build smarter — combining AI-driven development practices with deep expertise across fintech, healthcare, retail, and enterprise technology . Our team of engineers, architects, and AI specialists works across the full stack: from custom software and cloud solutions to generative AI, MLOps, and intelligent automation.

At Smart. Dev, we believe that great architecture and AI-first thinking are a competitive advantage — and we build our teams accordingly. The company is at a pivotal point in our journey: transitioning from a pure IT outsourcing provider to an AI-enabled solutions partner . We have over 100 talented employees working both on-site and remote/hybrid at locations: Hanoi: Zodiac building, 19 Duy Tan Street, Dich Vong Hau ward, Cau Giay District, Hanoi Danang: 81 Quang Trung, Hai Chau 1 ward, Hai Chau District, Danang The Senior System Engineer is a key technical authority within Smart.

Dev’s IT Infrastructure team . You will own the reliability, performance, and security of our systems - spanning on-premises hardware, cloud workloads, and the network fabric that connects them. You are the primary escalation point for complex incidents and a trusted partner to development and product teams. System & Infrastructure Operations Resolve and close incidents and service requests in line with help desk SLAs, acting as the first point of escalation for system-related issues.

Plan and execute hardware and software deployments, upgrades, and lifecycle maintenance. Monitor system health, performance, and capacity; proactively address risks before they impact service. Maintain scheduled data backups and validate restore procedures regularly. Network Administration Administer and maintain wired and wireless network infrastructure, including LAN/WAN, load balancers, and firewall devices.

Run regular network and data-security assessments and act on findings promptly. Email Management Administer Exchange Online and other mail services like Sendgrid; configure and maintain mail flow rules, connectors, and anti-spam/anti-phishing policies. Procurement & Vendor Coordination Evaluate tools and vendors to recommend cost-effective, future-proof solutions.

Continuous Improvement & Reporting Identify and drive improvements to systems, tooling, and operational processes. Produce and share clear, regular operational reports for stakeholders and leadership. Maintain accurate technical documentation and runbooks. 4+ years as a System Administrator , with hands-on expertise in Linux/Windows environments.

Technical Skills Networking — LAN/WAN, load balancing, firewall configuration and management. Virtualization — Xen, KVM, or VMware. SaaS Administration — Microsoft 365 Global Admin and Jira/Confluence Admin. IT Management Platforms — Endpoint Management, Endpoint Security (Manage. Engine or equivalent ITSM/RMM tooling), including policy configuration, agent deployment, and antivirus/EDR policy, patch automation, software inventory & compliance Web Services — Nginx, Apache, reverse proxy configuration.

Observability & Monitoring — Grafana, Prometheus, ELK Stack, or PRTG. Scripting — Bash and/or Power. Shell for automation and task management. Email — MS Exchange Online / Send. Grid Soft Skills & Other Requirements Communicates clearly in English (reading, writing, speaking, and listening). Able to produce concise technical documentation for varied audiences.

Strong analytical mindset with a bias towards proactive problem-solving.

Nice to Have

Cloud platforms — AWS or Azure knowlegde and hands on Containerisation — Docker and/or Kubernetes. CI/CD pipelines — GitHub Actions, GitLab CI, Jenkins, or similar. International working environment with AI-driven strategic direction. 20 days of annual leave – Hybrid working mode. Premium healthcare package with PVI and comprehensive annual health check-ups Competitive salary & 13th salary bonus Lunch allowance to fuel your productivity.

Engaging company culture with fun activities Global collaboration – Work with both Vietnamese and international colleagues.