Senior Systems and Network Engineer (DSC/JH)
Manage and maintain enterprise IT infrastructure—servers, networks, firewalls, load balancers—on Windows and RHEL, leading incident/problem management, patching, and security hardening for clients with 24x7 standby.
- Compensation
- SGD 6K–SGD 8K / mo
- Location
- Singapore
- Work setup
- Not specified
- Seniority
- Senior
- Employment
- Not specified
- Experience
- 6+ years
- Category
- Network engineering
- Posted
Skills
Must have
- 6-8 years' experience in IT infrastructure management and/or information security in enterprise environments
- Deep expertise in IT infrastructure components including hardware, software, operating systems, networking, and security principles
- Proven track record in IT operations management encompassing system administration, patch management, and performance monitoring
- Strong proficiency in Windows and RHEL operating systems
- Proficiency in network technologies such as firewalls, switches, and load balancers
- Exceptional problem-solving skills combined with excellent communication and stakeholder management abilities
- Demonstrated capability in vendor management
- Ability to support 24x7 standby duties
Nice to have
- Experience working with Operational Technology (OT) environments
Full description
Join ST Engineering Info-Security Pte. Ltd. within the Infrastructure Sustainment Services Business Unit, Customer Success Division, as a Senior Systems and Network Engineer. This pivotal role is designed for a seasoned IT professional dedicated to maintaining and enhancing the reliability, security, and efficiency of enterprise IT infrastructures for our valued clients.
As a Senior Engineer, you will be instrumental in ensuring that complex network environments and IT systems remain resilient and secure, thereby enabling uninterrupted business operations. Your role will involve proactive management of IT infrastructure, swift resolution of incidents, and continuous improvement of system performance and security protocols.
Key Responsibilities
- Lead and manage root-cause analysis initiatives, spearheading the resolution of complex technical incidents and serving as a critical escalation point for infrastructure-related issues.
- Conduct preventive and corrective maintenance on diverse IT infrastructure components, including servers, network devices (firewalls, load balancers, switches), and operating systems such as Windows and Red Hat Enterprise Linux (RHEL), ensuring optimal service availability and stability.
- Execute incident and problem management processes in alignment with organisational standards, facilitating timely restoration of services within agreed Service Level Agreements (SLAs).
- Provide expert advice to clients on performance enhancement, capacity planning, and optimization strategies to improve overall infrastructure efficiency.
- Implement and manage security controls encompassing patch management, vulnerability remediation, access control, system hardening, in strict adherence to clients’ security policies and industry best practices.
- Ensure rigorous application of security patches and updates following established Change and Release Management protocols to uphold system integrity and robust security postures.
- Maintain comprehensive and up-to-date documentation, including system configurations, SOPs, maintenance and recovery procedures, along with detailed incident and problem records. Generate insightful operational and security reports, such as incident post-mortems and Root Cause Analyses, to support transparent communication with management and clients.
- Collaborate closely with client teams, internal departments, and external service providers to guarantee integrated IT and Operational Technology (OT) operations. Coordinate activities related to audits, incidents, changes, and Disaster Recovery exercises.
- Communicate technical risks, service impacts, and recommended solutions effectively to stakeholders, including non-technical audiences, ensuring clarity and awareness.
- Demonstrate autonomous working capabilities, effective prioritisation, accountability, and ownership of assigned tasks and improvement initiatives.