Senior Unix Systems Engineer jobs in Singapore – Browse 1,908 openings on RoboApply Jobs

Senior Unix Systems Engineer jobs in Singapore

Open roles matching “Senior Unix Systems Engineer” with location signals for Singapore. 1,908 active listings on RoboApply Jobs.

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companyfuku logo
Full-time|On-site|Singapore, Singapore, Singapore

Role overview fuku is hiring a Senior Unix Systems Engineer in Singapore to support its infrastructure team. This team manages high-availability payment systems that process real-time financial transactions. The position centers on maintaining secure, stable, and high-performing Unix and Linux platforms across production, disaster recovery, and testing environments. Technical ownership of these environments is a key part of the role. What you will do Administer and maintain Unix and Linux servers to ensure reliability in all environments. Handle system upgrades, apply security hardening and patches, and monitor infrastructure for stability and compliance. Respond to incidents, analyze root causes, and implement preventive solutions that align with service level agreements. Oversee change, release, and deployment activities to reduce disruption to payment systems and related services. Monitor system capacity, tune performance, contribute to infrastructure projects, and maintain thorough documentation and operational procedures. Requirements Bachelor’s degree in IT, Computer Science, or a related field. Minimum 6 years of experience managing Unix, Linux, and middleware environments, ideally in enterprise or financial services. Strong hands-on skills with scripting, automation, system monitoring, backup solutions, and SAN storage technologies. Experience with OS hardening, patching, performance tuning, and supporting high-availability production systems. Excellent analytical, communication, and problem-solving skills, with the ability to work independently. Why join fuku? This role supports infrastructure critical to financial operations. It offers exposure to complex enterprise environments and the opportunity to deepen expertise in resilient systems engineering. How to apply To express interest or ask questions, contact Naveen at naveen.vasudevan@Tangspac.com.

Apr 22, 2026
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companyncs3 logo
Full-time|On-site|Singapore

Join our dynamic team at ncs3 as a Senior Unix/Linux Systems Engineer, where you will play a pivotal role in designing, implementing, and maintaining robust Unix/Linux systems. You will leverage your expertise to optimize system performance, enhance security protocols, and ensure high availability of critical services.In this position, you will collaborate with cross-functional teams to deliver innovative solutions while mentoring junior engineers and contributing to the overall success of our projects. If you are passionate about advancing your career in a fast-paced environment and driving technological excellence, we want to hear from you!

Jan 15, 2026
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companyFuku logo
Full-time|On-site|Singapore, Singapore, Singapore

Role Overview:Join our team as a Unix System Administrator, where you will oversee system administration and maintenance across various environments, including production, disaster recovery (DR), and testing. Your expertise with Sun Solaris and Linux servers will ensure the reliability and security of our IT infrastructure.Key Responsibilities:- Administer and maintain systems in a diverse environment, ensuring optimal performance and reliability through system upgrades and enhancements.- Implement security hardening measures and apply necessary patches to safeguard system integrity.- Monitor IT infrastructure components for obsolescence, ensuring timely updates and replacements.- Manage system passwords and certificates to uphold security protocols.- Establish and maintain a robust backup and database archiving schedule to support data recoverability and business continuity.- Develop disaster recovery plans, conducting regular tests to ensure standby equipment usability.- Oversee the User Acceptance Testing (UAT) process and maintain the UAT environment.- Provide technical support (level 3) to end-users, efficiently addressing complex issues.- Deliver second-level support, resolving incidents and problems according to established Service Level Agreements (SLAs).- Diagnose incidents, propose solutions, and implement preventive measures to avoid recurrence.

Feb 11, 2026
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companyXcellink logo
Full-time|On-site|Singapore, Singapore, Singapore

Execute monthly and ad-hoc patching for various servers as per contract obligations. Conduct ongoing performance tuning, hardware upgrades, and optimize resources as needed. Configure CPU, memory, and disk partitions accordingly. Generate monthly performance reports and collect server health statistics to support capacity planning initiatives. Perform level 1 troubleshooting and maintenance for storage systems, collaborating with level 2 storage teams for deeper troubleshooting and deployment of new storage solutions. Address additional server-related requests as they arise. Facilitate vendor escorts on the customer’s premises when required. Be available for rotating standby to handle night or weekend tasks as necessary.

Jun 5, 2023
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companyAvePoint logo
Full-time|On-site|Singapore

Key Responsibilities: • Oversee and optimize RHEL systems across development, testing, and production environments.• Architect, implement, and maintain OpenShift container platforms.• Manage and resolve issues with JBoss application servers.• Employ Red Hat Satellite for efficient system provisioning, patching, and configuration management.• Enforce security protocols and ensure compliance with industry standards.• Conduct system upgrades, patches, and periodic maintenance tasks.• Create and update documentation for system configurations and workflows.• Work collaboratively with development teams to facilitate application deployment and operations.• Engage in on-call support rotations for critical systems.

Mar 4, 2026
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companyfuku logo
Contract|On-site|Singapore, Singapore, Singapore

fuku seeks a Unix Administrator for a contract role in Singapore. This position requires flexibility to work a rotational shift schedule. Role overview This role centers on managing and maintaining Unix systems. The Unix Administrator monitors system performance and availability, addressing issues as they arise to help ensure reliable operations. Key responsibilities Oversee the daily management of Unix systems Track system performance and uptime Troubleshoot and resolve technical issues to support smooth system functioning Requirements Background in Unix administration Ability to work within a rotational shift schedule Strong skills in problem-solving and troubleshooting This contract suits those who want direct involvement with Unix environments and can adjust to shifting priorities and schedules.

Apr 21, 2026
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companyAccion Labs logo
Full-time|On-site|Singapore

We are seeking a highly skilled and motivated Systems Engineer / Senior Systems Engineer to join our innovative team. In this pivotal role, you will be responsible for designing, implementing, and maintaining complex systems to ensure optimal performance and reliability. You will collaborate with cross-functional teams to deliver cutting-edge solutions that meet our clients' needs.

Jun 3, 2017
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companyNCS3 logo
Full-time|On-site|Singapore

Role overview NCS3 is hiring a Senior Systems Engineer in Singapore. The role centers on designing, implementing, and improving complex systems that underpin company operations. Daily work involves integrating various technologies and processes to keep performance smooth and dependable. What you will do Design and implement system architectures that meet business needs. Optimize current systems to boost reliability and performance. Work with teams from different functions to create solutions tailored for clients. Support integration of a mix of technologies and workflows. Collaboration This position partners with colleagues across departments to deliver solutions that enhance operational efficiency for clients.

Apr 27, 2026
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companyncs3 logo
Full-time|On-site|Singapore

Join our dynamic team at ncs3 as a Senior Systems Engineer specializing in Security Systems. In this pivotal role, you will be responsible for designing, implementing, and maintaining advanced security infrastructure to protect organizational assets. Your expertise will guide the development of innovative security solutions that enhance operational efficiency and safeguard sensitive information.We seek a proactive individual with a passion for technology and a strong commitment to excellence. You will work collaboratively with cross-functional teams to identify security vulnerabilities and propose effective solutions.

Feb 26, 2026
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companyNCS3 logo
Full-time|On-site|Singapore

NCS3 is seeking a highly skilled Senior System Engineer to join our dynamic team in Singapore. This role is pivotal in designing, implementing, and maintaining robust system architectures that meet our clients' needs. As a Senior System Engineer, you will leverage your expertise to solve complex technical challenges, ensuring the highest standards of performance and security across all systems.

Mar 29, 2026
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companyNCS logo
Full-time|On-site|Singapore

Role Overview:Join our dynamic team as a Senior Security Systems Engineer, where you will play a critical role in the design, implementation, and management of cutting-edge security surveillance systems. You'll collaborate closely with system architects and pre-sales teams to articulate and document comprehensive solutions tailored to our clients' needs.Key Responsibilities:Collaborate with the system architect and pre-sales teams to implement state-of-the-art security surveillance systems and network infrastructures both on-premise and in the cloud.Conduct thorough analysis, planning, implementation, testing, and management of integrated perimeter security, video surveillance, and video analytics systems.Leverage your expertise in software and hardware systems, including:IP CCTV SystemsFence Intrusion Detection Systems (FIDS)Physical Security Information Management Systems (PSIM)Video Management Systems (VMS)Data Protection and Identity ManagementWindows Server and Linux OS in virtual environmentsVirtualization technologies and hypervisorsNetwork monitoring solutionsLead interdisciplinary technical teams and stakeholders to design, implement, and verify solutions that meet strict performance requirements.Coordinate with partners to resolve technical issues and support both preventative and corrective maintenance.Develop implementation timelines that align with project management schedules, ensuring timely delivery of milestones.Engage with key vendors and partners to review and refine proposed solution architectures in accordance with industry standards and policies.Interpret technical documentation, installation manuals, and system drawings to facilitate effective implementation.Plan and execute various testing phases (SSAT/UAT/OSAT) to ensure compliance with project requirements.Possess a solid understanding of electrical power systems and cabling works for on-site tasks.Participate in customer meetings, providing regular updates on project progress and addressing any issues that arise.Collaborate with clients, consultants, and project managers to gain approvals on designs and review project progress.Define clear deliverables, roles, and responsibilities for technical engineers to ensure collaborative work towards established goals.Schedule and manage weekly work plans to prevent conflicts.Conduct root cause analyses for system issues and recommend effective solutions.Ensure compliance with construction site safety and regulatory standards.Monitor project finances, including budget tracking and cost management, to ensure efficient project delivery.Work comfortably in both indoor and outdoor environments.

Feb 21, 2025
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companyAirwallex logo
Full-time|On-site|SG - Singapore

Join Airwallex as a Senior IT Engineer specializing in Financial Systems, where you will play a crucial role in developing and maintaining our financial infrastructure. This is an exciting opportunity to work with cutting-edge technology in a fast-paced environment that fosters innovation and growth.

Apr 8, 2026
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companyEncora logo
Contract|On-site|Singapore

Encora is looking for an experienced AIX System Administrator to join the team in Singapore. This position supports the UNIX infrastructure and works with application teams to ensure reliable, efficient operations. Role overview The AIX System Administrator focuses on maintaining high availability for UNIX systems, driving automation, and supporting ongoing system upgrades. Collaboration with development and operations teams is central to this role, as is establishing configuration standards and troubleshooting urgent issues. What you will do Work with application teams to plan and execute end-of-support (EOS) upgrades Define configuration standards for UNIX and system software Provide technical support for development and operations teams Automate scripting tasks using Perl, KSH, and Python Use tools such as GIT/GitHub, Maven, Jenkins, Docker, Kubernetes, Ansible, Puppet, Chef, and Nagios Troubleshoot and resolve urgent system issues, implementing recovery solutions as needed Lead AIX OS upgrades and ensure systems remain supportable Review and manage major change requests Conduct performance tuning and system analysis Automate operational processes to improve efficiency Manage periodic OS and software upgrade cycles Oversee backup and recovery protocols Requirements Strong knowledge of AIX OS and system services (Volume Manager, NTP, DNS, Clustering, SSH, TSM, ITM) Proven UNIX troubleshooting and performance tuning skills Experience with UNIX server clustering Understanding of information security principles Knowledge of data communication and networking Familiarity with middleware and UNIX-based application execution is a plus

Apr 29, 2026
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companyxcellink logo
Full-time|On-site|Singapore, Singapore, Singapore

Join our esteemed client, a leader in providing comprehensive services and consultancy across major domains including Cyber Security, Network & Security, Systems & Storage Infrastructure, Cloud solutions, and Automation. We are on the lookout for a Senior System & Endpoint Engineer to contribute to a groundbreaking new project.Key Responsibilities: Configure and troubleshoot various Windows Server environments (2008 R2, 2012, 2012 R2, 2016). Implement patching, hardening, and security measures for Wintel systems. Manage and resolve issues related to VMware products. Oversee upgrades, migrations, and patching for VMware solutions. Configure and troubleshoot storage solutions from leading brands such as Lenovo, IBM, HP, and DELL. Update firmware and manage storage migrations effectively. Configure and troubleshoot Hyper-Converged Infrastructure (HCI) technologies like Nutanix and VMware VSAN. Implement and troubleshoot backup solutions including Veeam Backup & Replication, Veritas Backup Exec, and Veritas NetBackup. Deploy, harden, and remediate Linux Servers in accordance with VAPT standards. Possess foundational networking knowledge, including switching, routing, and firewall configuration/troubleshooting. Configure and troubleshoot security systems like Trend Micro Deep Security Manager, Apex One, Symantec Endpoint Manager, and McAfee ePO. Conduct patching/upgrades, hardening, and fine-tuning of security policies.

Feb 17, 2022
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companyncs3 logo
Full-time|On-site|Singapore

We are seeking a highly skilled Senior System Engineer to join our dynamic team at ncs3. In this role, you will be responsible for designing, implementing, and maintaining infrastructure systems that support our hybrid IT environment. Your expertise will play a critical role in ensuring the seamless integration of cloud and on-premises resources.

Jan 26, 2026
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companyAccion Labs logo
Full-time|On-site|Singapore

Join our dynamic team at Accion Labs as a Senior Systems Engineer – Development. In this role, you will leverage your expertise to drive innovative solutions that meet complex client needs. You will be working closely with cross-functional teams to design, develop, and implement robust systems that enhance operational efficiency and deliver exceptional value.

Jun 3, 2017
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companyMotional logo
Full-time|On-site|Singapore, Central, Singapore

Primary Purpose: The Senior Performance Analysis Engineer will assume technical ownership of key domains within our autonomous driving technology, ensuring optimal system quality and vehicle behavior. The ideal candidate will have extensive experience in system and sub-system analysis, utilizing verification and validation methodologies, while fostering collaboration across software, testing, and project management teams. This role uniquely integrates testing and operations with software development and systems/safety requirements, positioned at both ends of the systems V-model. Essential Duties: Assume technical ownership of entire domains or sub-domains (e.g., localization, motion planning, perception, prediction) while maintaining a comprehensive understanding of the autonomous vehicle stack. Act as the primary contact for performance analysis in the assigned domain. Provide diagnostic support across teams during escalations. Lead comprehensive Root Cause Analysis (RCA), Fault Tree Analysis (FTA), and Failure Mode Effects Analysis (FMEA) across various environments including public roads, closed courses, simulations, and Hardware-in-Loop (HIL). Drive both diagnosis and prognosis efforts, analyzing risk trajectories, recurrence patterns, and release impacts. Deliver structured performance summaries to inform decisions on release readiness, commercial deployments, and KPI governance. Collaborate across functions including software, hardware, systems testing, operations, and safety teams. Proactively identify and remove engineering blockers affecting multiple teams. Own team-wide or organization-wide KPIs/OKRs. Communicate performance metrics clearly and effectively across various teams while remaining technically grounded. Champion automation and scalable analysis and reporting practices. Mentor peers and junior engineers, providing structured feedback and supporting their technical growth. Optional travel may be required based on business needs. Perform other duties as assigned.

Mar 31, 2026
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companyncs3 logo
Full-time|On-site|Singapore

Role overview ncs3 is hiring a Lead or Senior Systems Engineer to focus on Multi-Robot Systems in Singapore. This position involves developing robotics technology from early concept through to deployment, with an emphasis on coordinating multiple robots in complex environments. What you will do Design, implement, and improve software for managing and coordinating multiple robotic systems Collaborate with colleagues from different disciplines to deliver reliable and high-performing robotics solutions Apply technical expertise at every stage of the project, from initial planning through to launch Requirements Experience working with multi-robot or distributed systems engineering Strong foundation in software design and optimization within robotics Skilled at working with cross-functional teams to meet project objectives

Apr 27, 2026
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companycsit logo
Full-time|On-site|Singapore, Singapore

Join our dynamic and innovative team as a Senior Software Engineer specializing in Cyber Systems. In this role, you will be instrumental in crafting advanced software solutions aimed at enhancing organizational efficiency in managing information and workflows. Collaborate with a diverse group of talented professionals, including Software Engineers, DevOps Engineers, and UI/UX Designers, to create exceptional software products. You will lead the design, development, and deployment processes, ensuring the delivery of high-quality solutions. This position offers the chance to work on a variety of projects, ranging from the conception of new products to the enhancement and deployment of existing ones. You'll also play a vital role in mentoring junior engineers, fostering best practices in software engineering within the team. We are looking for individuals who are passionate about developing effective solutions and committed to nurturing a culture of excellence in software engineering.

Apr 23, 2025
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companyncs3 logo
Full-time|On-site|Singapore

ncs3 is seeking a Systems Engineer focused on Security Systems to join the team in Singapore. This position centers on designing, implementing, and maintaining security solutions that protect client assets and sensitive information. Role overview As a Systems Engineer, the main responsibility is to ensure the integrity and confidentiality of data through robust security practices. The role involves hands-on work with security systems and requires technical expertise to address evolving security needs. What you will do Design and implement security solutions tailored to client requirements Maintain and support existing security systems to ensure ongoing protection Collaborate with cross-functional teams to develop and refine security protocols Conduct risk assessments to identify and address vulnerabilities Provide ongoing technical support for deployed security systems Requirements Technical background in security systems Strong interest in technology and best practices for security Commitment to excellence in safeguarding information Ability to work effectively with teams across different functions

Apr 29, 2026

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