797 Linux Engineer jobs in Singapore

Responsibilities:

• Responsible for planning the server onto racks, arranging the server mounting
• Maintain UNIX/Linux Operating System
• Install the operating systems for new mounted servers
• Reinstall the server operation systems, solving the abnormalities.
• Perform daily server maintenance, troubleshooting, repair and follow-up break-fix of the server and other hardware
• Maintain data on internal systems including asset management, ticketing, rack related data
• Work with remote vendors or other teams to solve hardware batch failures and problems
• Oncall on duty, responsible for dealing with the problems raised by the business owner side
• Collect and check online assets status or issues
• Erase drives or other configurations for retiring or relocating servers.
• Provide retrofitting or test feedback for tools/systems/platforms.
• Submit and track the part RMA or media destruction process
• Perform server lifecycle management

Requirements:

• Bachelor's Degree or Diploma in Computer Science, Electrical engineering or any other relevant fields
• Knowledge of the interdependencies of server functions and technologies
• Can understand and run simple Shell/Bash scripts
• Familiar with Linux system, able to locate hardware faults;
• Basic network knowledge concepts - MAC, Subnet, TCP/IP, with ability to perform general troubleshooting
• Knowledge of out-of-band/lights-out server communication methods, such as IPMI
• Able to work on weekends

Linux Engineers work with the critical infrastructure underlying the rest of the firm’s technology. Members of this group are hard-working Systems Engineers, Administrators, and Programmers, tasked with maintaining and improving the platform that powers Jane Street's production trading systems. Our mix of in-house and open-source software allows you to investigate and innovate at every level. On any given day, you could be debugging kernel performance, developing management tools, or resolving production issues in real time. Diving into tricky systems problems is our specialty.
Deployment automation, scalable configuration management, and obsessive monitoring are the focus of some of our ongoing projects. We automate as much of our work as we can, but not because we are lazy. We find that automation reduces our error rate and overall workload - plus, we think it's fun.
Working in our group provides opportunities for involvement with almost every other facet of the company. We work directly with colleagues in Trading, Technology, and Operations to build and maintain systems with a firm-wide scope. Using feedback from other groups and our custom monitoring tools, we strive to resolve production issues quickly, perform comprehensive root-cause analyses, and integrate long-term fixes in a clean and robust way.
About You
We are looking to hire Systems Programmers and Administrators with a deep knowledge of Unix internals and the Linux ecosystem. Candidates should have a willingness to learn OCaml, our language of choice, and meet the following requirements:
Bachelor's degree in Computer Science, Software Engineering or other technical discipline (or equivalent experience)
Clear and concise communication skills, as well as the ability to efficiently analyze and deconstruct technical problems
Deep knowledge of operating system fundamentals, especially Linux
Fluency with the Unix command line and shell scripting
Practical experience with modern Linux systems and systems programming concepts like C, sockets, virtual memory, and the process life cycle
Basic understanding of network protocols
Strong troubleshooting skills and knowledge of profiling/debugging tools such as gdb, perf, DTrace, or SystemTap
Programming experience in any language (functional languages a plus)
#J-18808-Ljbffr

Title : Linux Engineer

Duration : 1 Year (renewable)

Location : BUONA VISTA LINK

The System Administrator will be responsible for performing System

Administration and Management activities for the Company and/or In-Scope Institutions.

This role includes managing operating systems, system software, hardware, and ensuring

the stability and security of system environments.

Key Responsibilities:

1. System and Hardware Management:

o Support and manage various operating systems including Windows Server,

Linux (RHEL, SUSE, Ubuntu), Solaris, IBM AIX, and Oracle Linux.

o Manage system software and hardware such as Active Directory, DNS,

DHCP, ADFS, Azure AD, clustering solutions, SAN/NAS storage, and

virtualization platforms.

2. Incident and Problem Management:

o Respond to system incidents according to severity levels and meet service

level requirements.

o Handle high-pressure situations, identify problems, and make quick

decisions to resolve issues.

o Adhere to incident management workflows and procedures.

3. Documentation and Reporting:

o Maintain and update system documentation, standard operating procedures

(SOP), guidelines, and daily checklists.

o Provide timely and accurate reports on system performance, capacity

planning, and incident analysis.

4. Collaboration and Coordination:

o Work closely with third-party vendors, telecommunication operators, ISPs,

and other service providers.

o Participate in transition planning and support the onboarding of systems and

services.

5. Compliance and Training:

o Ensure compliance with company policies, information security guidelines,

and health and safety regulations.

o Provide continuous training to enhance knowledge and skills in system

administration and management.

Qualifications:

• Education: Diploma in Information Technology or a related field.

• Experience:

o Minimum of 3 years of experience in managing system and hardware

infrastructure.

• Certifications:

o ITIL certified, relevant certifications for specific systems (e.g., CCNA, MCSE,

RHCSA).

• Skills:

o Strong technical knowledge of system and hardware management.

o Excellent problem-solving and decision-making skills.

o Ability to work independently and as part of a team.

o Strong communication and interpersonal skills.

Working Conditions:

• Ability to work on different shifts, including nights, weekends, and holidays.

• On standby and contactable 24/7 for support and escalation.

EA License # 14C6941

Job Title: Linux System Engineer

We are looking for a highly skilled Linux system engineer to join our team.

• Design and implement scalable and secure Linux systems architecture.
• Configure and maintain Linux servers, including installation, troubleshooting, and optimization.
• Develop and implement scripts to automate system administration tasks using shell scripting and Ansible.
• Collaborate with cross-functional teams to identify and resolve technical issues.

• Deep knowledge of Linux operating systems, including RHEL 6 and 7.
• Strong experience in clustering, VM-level Linux clustering, OS installation, configuration, and fine-tuning.
• Excellent skills in auditing, hardening, and security.
• Good understanding of DNS, NFS, Automount, LVM, GFS, Filesystem administration.
• Experience in hardware troubleshooting and vendor coordination.
• Incident management, change management, and configuration management.
• Log monitoring and maintenance.

• Competitive salary and benefits package.
• Opportunities for professional growth and development.
• A dynamic and collaborative work environment.

Please submit your resume and cover letter to us. We look forward to hearing from you.

Role and responsibilities:

• Manage and monitor all installed systems and infrastructure
• Install, configure, test and maintain operating systems, application software and system management tools
• Participate in the design of information and operational support systems
• Liaise with vendors and other IT personnel for problem resolution
• Provide enterprise-wide infrastructure design and support to Linux , VMWare and Microsoft Windows environements

Ideal candidate:

• Diploma in Computer Science or related technology disciplines
• Possess initiative, positive attitude and strong passion in operation support
• Good communication skills and able to work independently
• 4+ years of experience with Linux
• Proficient with Linux, virtualization (KVM, VMWare)
• Windows server is a plus

Location: Central

Remuneration: Base up to $9,000 + Bonus |Salary to commensurate with experience

Working Arrangement: Fully Onsite

Key Responsibilities:

• Design, implement, and manage cloud infrastructure on AWS using services like EC2, S3, RDS, Lambda, and more.
• Administer and maintain Linux-based systems in a cloud environment (CentOS, Ubuntu, RedHat). Automate infrastructure provisioning and management using tools like Terraform, Ansible, or CloudFormation.
• Monitor cloud infrastructure performance, identify potential issues, and take proactive measures to address them.
• Implement and manage security best practices for cloud resources and Linux-based systems, including firewalls, VPNs, and security groups.
• Collaborate with development teams to implement CI/CD pipelines and containerization technologies like Docker and Kubernetes.
• Optimize cloud resources for cost-efficiency and performance.
• Troubleshoot and resolve system issues, outages, and performance problems.
• Perform regular system backups, disaster recovery tests, and system upgrades.
• Provide technical support and assistance to internal teams and clients as required.

Required Skills and Qualifications:

• Bachelors Degree in Computer Science or related field.
• Min 3 years of experience in either Linux administration or AWS cloud required.
  
  Proven experience with Amazon Web Services (AWS), including EC2, VPC, IAM, Lambda, RDS, S3, and other AWS services.
  
  Strong proficiency in Linux system administration (CentOS, Ubuntu, RedHat).
• Hands-on experience with infrastructure as code (IaC) tools such as Terraform, Ansible, or AWS CloudFormation.
• Familiarity with containerization technologies (Docker, Kubernetes) and container orchestration in the cloud.
• Strong knowledge of cloud security best practices and experience securing AWS resources.
• Expertise in scripting languages (Bash, Python, etc.) for automation and system management.
• Ability to manage and troubleshoot complex cloud infrastructure environments.
• Excellent problem-solving and troubleshooting skills.
• Strong communication and collaboration skills to work with cross-functional teams

Harineshwari Lakxmi | EA Personnel Reg No: R25139423

APBA TG Human Resource Pte Ltd | EA License: 14C7275

• Proactively monitors the work queues.
• Performs operational tasks to resolve all incidents/requests in a timely manner and within the agreed SLA.
• Updates tickets with resolution tasks performed.
• Identifies, investigates, analyses issues and errors prior to or when they occur, and logs all such incidents in a timely manner.
• Captures all required and relevant information for immediate resolution.
• Provides second level support to all incidents, requests and identifies the root cause of incidents and problems.
• Communicates with other teams and clients for extending support.
• Executes changes with clear identification of risks and mitigation plans to be captured into the change record.
• Follows the shift handover process highlighting any key tickets to be focussed on along with a handover of upcoming critical tasks to be carried out in the next shift.
• Escalates all tickets to seek the right focus from CoE and other teams, if needed continue the escalations to management.
• Works with automation teams for effort optimization and automating routine tasks.
• Ability to work across various other resolver group (internal and external) like Service Provider, TAC, etc.
• Identifies problems and errors before they impact a client's service.
• Provides Assistance to L1 Security Engineers for better initial triage or troubleshooting.
• Leads and manages all initial client escalation for operational issues.
• Contributes to the change management process by logging all change requests with complete details for standard and non-standard including patching and any other changes to Configuration Items.
• Ensures all changes are carried out with proper change approvals.
• Plans and executes approved maintenance activities.
• Audits and analyses incident and request tickets for quality and recommends improvements with updates to knowledge articles.
• Produces trend analysis reports for identifying tasks for automation, leading to a reduction in tickets and optimization of effort.
• May also contribute to / support on project work as and when required.
• May work on implementing and delivering Disaster Recovery functions and tests.
• Performs any other related task as required.

Required Experience:

• Versed in Windows Technologies such as Domain Services, SQL, etc. not limiting to the list.
• SRE Oriented and Focus
• Familiar with AWS administration, Nutanix, Apache (Web server administration), Linux System administration, BigFix
• Familiar ELK Stack (Elasticsearch, Logstash, Kibana) with AI/ML integration
• Familiar with SNMP (Simple Network Management Protocol), F5 (Load Balancers and related technologies)
• Familiar with JSON (Data formatting and processing)
• Familiar with API, Automation, Ansible, CI/CD, etc.
• Languages PS, Bash, Python, etc.
• Moderate level years of relevant managed services experience handling cross technology infrastructure.
• Moderate level knowledge in ticketing tools preferably Service Now.
• Moderate level working knowledge of ITIL processes.
• Moderate level experience working with vendors and/or 3rd parties.

• Proactively monitors the work queues.
• Performs operational tasks to resolve all incidents/requests in a timely manner and within the agreed SLA.
• Updates tickets with resolution tasks performed.
• Identifies, investigates, analyses issues and errors prior to or when they occur, and logs all such incidents in a timely manner.
• Captures all required and relevant information for immediate resolution.
• Provides second level support to all incidents, requests and identifies the root cause of incidents and problems.
• Communicates with other teams and clients for extending support.
• Executes changes with clear identification of risks and mitigation plans to be captured into the change record.
• Follows the shift handover process highlighting any key tickets to be focussed on along with a handover of upcoming critical tasks to be carried out in the next shift.
• Escalates all tickets to seek the right focus from CoE and other teams, if needed continue the escalations to management.
• Works with automation teams for effort optimization and automating routine tasks.
• Ability to work across various other resolver group (internal and external) like Service Provider, TAC, etc.
• Identifies problems and errors before they impact a client’s service.
• Provides Assistance to L1 Security Engineers for better initial triage or troubleshooting.
• Leads and manages all initial client escalation for operational issues.
• Contributes to the change management process by logging all change requests with complete details for standard and non-standard including patching and any other changes to Configuration Items.
• Ensures all changes are carried out with proper change approvals.
• Plans and executes approved maintenance activities.
• Audits and analyses incident and request tickets for quality and recommends improvements with updates to knowledge articles.
• Produces trend analysis reports for identifying tasks for automation, leading to a reduction in tickets and optimization of effort.
• May also contribute to / support on project work as and when required.
• May work on implementing and delivering Disaster Recovery functions and tests.
• Performs any other related task as required.

Required Experience:

• Versed in Windows Technologies such as Domain Services, SQL, etc. not limiting to the list.
• SRE Oriented and Focus
• Familiar with AWS administration, Nutanix, Apache (Web server administration), Linux System administration, BigFix
• Familiar ELK Stack (Elasticsearch, Logstash, Kibana) with AI/ML integration
• Familiar with SNMP (Simple Network Management Protocol), F5 (Load Balancers and related technologies)
• Familiar with JSON (Data formatting and processing)
• Familiar with API, Automation, Ansible, CI/CD, etc.
• Languages PS, Bash, Python, etc.
• Moderate level years of relevant managed services experience handling cross technology infrastructure.
• Moderate level knowledge in ticketing tools preferably Service Now.
• Moderate level working knowledge of ITIL processes.
• Moderate level experience working with vendors and/or 3rd parties.

• Proactively monitors the work queues.
• Performs operational tasks to resolve all incidents/requests in a timely manner and within the agreed SLA.
• Updates tickets with resolution tasks performed.
• Identifies, investigates, analyses issues and errors prior to or when they occur, and logs all such incidents in a timely manner.
• Captures all required and relevant information for immediate resolution.
• Provides second level support to all incidents, requests and identifies the root cause of incidents and problems.
• Communicates with other teams and clients for extending support.
• Executes changes with clear identification of risks and mitigation plans to be captured into the change record.
• Follows the shift handover process highlighting any key tickets to be focussed on along with a handover of upcoming critical tasks to be carried out in the next shift.
• Escalates all tickets to seek the right focus from CoE and other teams, if needed continue the escalations to management.
• Works with automation teams for effort optimization and automating routine tasks.
• Ability to work across various other resolver group (internal and external) like Service Provider, TAC, etc.
• Identifies problems and errors before they impact a client’s service.
• Provides Assistance to L1 Security Engineers for better initial triage or troubleshooting.
• Leads and manages all initial client escalation for operational issues.
• Contributes to the change management process by logging all change requests with complete details for standard and non-standard including patching and any other changes to Configuration Items.
• Ensures all changes are carried out with proper change approvals.
• Plans and executes approved maintenance activities.
• Audits and analyses incident and request tickets for quality and recommends improvements with updates to knowledge articles.
• Produces trend analysis reports for identifying tasks for automation, leading to a reduction in tickets and optimization of effort.
• May also contribute to / support on project work as and when required.
• May work on implementing and delivering Disaster Recovery functions and tests.
• Performs any other related task as required.

Required Experience:

• Versed in Windows Technologies such as Domain Services, SQL, etc. not limiting to the list.
• SRE Oriented and Focus
• Familiar with AWS administration, Nutanix, Apache (Web server administration), Linux System administration, BigFix
• Familiar ELK Stack (Elasticsearch, Logstash, Kibana) with AI/ML integration
• Familiar with SNMP (Simple Network Management Protocol), F5 (Load Balancers and related technologies)
• Familiar with JSON (Data formatting and processing)
• Familiar with API, Automation, Ansible, CI/CD, etc.
• Languages PS, Bash, Python, etc.
• Moderate level years of relevant managed services experience handling cross technology infrastructure.
• Moderate level knowledge in ticketing tools preferably Service Now.
• Moderate level working knowledge of ITIL processes.
• Moderate level experience working with vendors and/or 3rd parties.