System Engineer

Avensys is a reputed global IT professional services company headquartered in Singapore. Our service spectrum includes enterprise solution consulting, business intelligence, business process automation and managed services. Given our decade of success we have evolved to become one of the top trusted providers in Singapore and service a client base across banking and financial services, insurance, information technology, healthcare, retail, and supply chain. We are seeking an experienced System Engineer. Role Overview We are looking for an experienced Unix/Linux System Engineer to manage, maintain, and support enterprise Unix/Linux infrastructure. The role involves system administration, troubleshooting, monitoring, patching, automation, and ensuring the availability, performance, and security of critical systems. Key Responsibilities • Administer and maintain Unix/Linux servers, including RHEL, CentOS, and Ubuntu. • Perform system monitoring, performance tuning, troubleshooting, and optimization. • Manage patching, updates, vulnerability remediation, and system security. • Develop and maintain Bash/Korn shell scripts to automate operational tasks. • Manage file systems, LVM, RAID, backups, and system configurations. • Troubleshoot infrastructure issues and ensure timely resolution within SLA. • Support networking services including TCP/IP, DNS, NFS, and SSH. • Maintain technical documentation, procedures, and troubleshooting guides. • Support disaster recovery planning and exercises. • Collaborate with infrastructure teams, stakeholders, and project teams on technical initiatives. • Provide technical guidance and mentoring to junior team members. • Support implementation of new technologies and identify opportunities for process improvement. Requirements • 3–5 years of hands-on Unix/Linux system administration experience. • Strong experience with RHEL, CentOS, and/or Ubuntu. • Proficiency in Bash and/or Korn shell scripting. • Good knowledge of file systems, LVM, and RAID. • Experience with monitoring tools such as Nagios, Zabbix, or similar. • Good understanding of TCP/IP, DNS, NFS, and SSH. • Experience with patching and vulnerability management. • Strong troubleshooting and problem-solving skills. • Bachelor's degree in Computer Science, IT, or related field. Good to Have • Ansible, Puppet, or Chef • Docker / Kubernetes • AWS, Azure, or GCP • Git • Performance tuning and optimization • RHCSA, LPIC, or equivalent certification WHAT’S ON OFFER You will be remunerated with an excellent base salary and entitled to attractive company benefits. Additionally, you will get the opportunity to enjoy a fun and collaborative work environment, alongside a strong career progression. To submit your application, please apply online or email your UPDATED CV in Microsoft Word format to deepa@aven-sys.com. Your interest will be treated with strict confidentiality. CONSULTANT DETAILS Consultant Name: Deepa Shivakoti Reg No: R1765546 Avensys Consulting Pte Ltd EA Licence 12C5759 Privacy Statement: Data collected will be used for recruitment purposes only. Personal data provided will be used strictly in accordance with the relevant data protection law and Avensys' privacy policy.